Model: PD2-6000-6H7

PD2-6000 Helios Process Meter

UL Listing
SKU: PD2-6000-6H7
Product Type: Large Display NEMA 4X Process Meter
Inputs: Current (4-20 mA), Voltage (0-10 V)
Output Options: 4 Relays & 4-20 mA Output
Power: 85-265 VAC, 90-265 VDC
Transmitter Power: 24 VDC @ 200 mA + 24 VDC @ 40 mA
Display Category: LED, Dual Line, Sunlight Readable, Large Display
Display: SunBright, 1.8", Dual Line, 6 Digits, Red LED
Serial Comms: RS-485 Modbus
Approvals: UL/C-UL
Warranty: 3 years
Product Family: PD2-6000
Product Category: Field Mounted Indicators
Product Application: Level, Pressure, Process, Pump Control

Wiring Diagram:

Features

  • Large Display NEMA 4X, IP65 Wall Mounted Meter
  • 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Field Selectable Inputs with ±0.03% Accuracy
  • Large Dual-Line 6-Digit Display, 1.8" (46 mm) Readable from 100 Feet (30 Meters) Away
  • Isolated 24 VDC @ 200 mA Transmitter Power Supply
  • Easy Field Scaling in Engineering Units without Applying an Input
  • 4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
  • Free PC-Based, On-Board, MeterView Pro USB Programming Software
  • SunBright Display Standard Feature; Great for Outdoor Applications
  • Optional SunBright Display Models for Outdoor Applications
  • Operating Temperature Range: -40 to 65°C (-40 to 149°F)
  • Conformal Coated PCBs for Dust and Humidity Protection
  • UL & C-UL Listed. E160849; 508 Industrial Control Equipment
  • Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
  • Display Input in Two Different Scales - Great for Level Applications
  • Multi-Pump Alternation Control
  • Round Horizontal Tank Formula; Just Enter Diameter & Length
  • 32-Point Linearization, Square Root Extraction and Programmable Exponent Function
  • Programmable Display, Function Keys & Digital Input
  • Tare Function
  • On-Board RS-485 Serial Communications
  • Modbus RTU Communication Protocol Standard
  • 5 Digital Inputs & 4 Digital Outputs Standard
  • Password Protection
  • Light / Horn & Reset Button Accessory
  • Control Station Accessory For Remote Operation
  • Stainless Steel Sun Hood Accessory Available
  • 3-Year Warranty

Overview

The Only Large Display Process Meter You Will Ever Need

The Helios large display process meter boasts specifications, features and functionality that make it the only large display process meter you will ever need. The big, bright 6-digit dual-line LED display that can be seen from 100 feet even in bright sunlight is the first thing you will notice about the Helios. After that, the number one feature that makes the Helios such a useful device is its built-in 24 VDC power supply to drive the transmitter as illustrated by the above diagram. This feature not only saves the cost of an external power supply, but also greatly simplifies wiring. In addition, there is a second 40 mA power supply provided with the 4-20 mA output option, evident also in the above diagram.

The above picture illustrates several other reasons why the Helios is the only large display process meter you will ever need. First off, is the NEMA 4X rated enclosure which means you can install the Helios indoors and outdoors, exposed to moisture, dust and other adverse conditions. The next thing to notice is the 6-digit dual-line display that can display numbers up to 999,999 on the upper line and show either a tag or the input in a different scale on the lower line.

Other key features include four relays and 4-20 mA output option, advanced signal input conditioning like automatic round horizontal tank linearization, function keys, pump alternation capability, and Modbus RTU serial communications. Finally, all these features and capabilities can easily be programmed with free MeterView Pro PC-based software.

Front

Front of PD2-6000

Helios Connections

PD2-6000 Helios Connections

Isolated Transmitter Power Supplies

24 V @ 200 mA Transmitter Power Supply

24 V @ 200 mA Transmitter Power Supply

One of the most useful standard features of the AC powered PD2-6000 is its built-in isolated, 24 V @ 200 mA power supply to power the transmitter. This feature saves money by eliminating an external power supply and also simplifies wiring by reducing the number of devices in the loop. It can be configured for 5, 10, or 24 V (default) by means of a simple internal jumper. This power supply is even available on meters that are powered from DC power (24 V @ 100 mA). To use an external power supply instead of the internal power supply, simply make connections to different terminals on the Helios. The following diagrams illustrate how to wire the Helios so it will power the transmitter:

24 V @ 40 mA 4-20 mA Output Power Supply

24 V @ 40 mA 4-20 mA Output Power Supply

Not only can the Helios power the 4-20 mA input signal, but an additional power supply of 24 V @ 40 mA is provided with the 4-20 mA output option to power the 4-20 mA output.

Resettable Fuse Prevents Current Overload

Another very useful aspect of the Helios is that the current input is protected against current overload by a resettable fuse. The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.

Other Uses for Transmitter Power Supplies

Helios Powers Both Heater and 4-20 Output

The most common use for these two power supplies is for the 200 mA transmitter power supply to power the field transmitter and 40 mA power supply to power the 4-20 mA output from the meter. However, since these two power supplies are isolated they can be used in other ways. For instance, some level transmitters require the use of a heated lens. The Helios’s 200 mA power supply could be used to power the heated lens and Helios’s 40 mA power supply could be used to power the 4-20 mA input.

External Power Supply for the Loop

External Power Supply for the Loop

For applications that require an external transmitter power supply, the same Helios is used and merely wired in a different fashion as the following diagrams illustrate:

PDA1024-01 24 VDC Transmitter Power Supply

Precision Digital offers the PDA1024-01 for applications that require more than the 200 mA power that the Helios can provide.

SPECIFICATIONS
Output Voltage:
24 VDC ±10% @ 1.5A rated current
Dimensions:
1.40" x 3.50" x 2.10"
(35 mm x 90 mm x 54.5 mm)
(W x H x D)

PDA1024-01 24 VDC Transmitter Power Supply

Advanced Display Features

Dual-Line Makes All the Difference

The upper display can be programmed to indicate PV, maximum (peak), minimum (valley), alternating maximum/ minimum, one of eight alarm set points, or Modbus input. The lower display can be configured to display engineering units, set points, user defined messages, or simply turned off.

The Helios’s dual-line display makes all the difference both when programming the instrument and when using it in the field. When programming the instrument, the dual line display prompts for the needed information and also helps you keep track of where you are in the setup process. When using the instrument, the dual line display provides more information such as displaying the input in two different scales like height and volume for a level application. We call this the Dual-Scale feature.

Programming Assistance

The Helios’s dual-line display makes programming the instrument much easier because the lower line prompts for the needed information and also helps you keep track of where you are in the setup process.

Programming Assistance

In the example above, the Helios is prompting for the value for Input 2 and displaying the default value of 20.00 mA. The “2” in 20.00 is brighter than the rest of the digits indicating that it is the number that will be changed by the Up and Right arrows.

Programming Assistance

In the example above, the Helios is now prompting for what the user wants Display 2 to be; that is the value that corresponds to 20 mA. In this case Display 2 is currently set to 95.00.

Superluminous Sunlight Readable Display

The Helios's standard SunBright display features extraordinarily bright LEDs. It is perfect for applications where the meter is in direct sunlight or in applications where visibility may be impaired by smoke, fog, dust, or distance.

Rounding Feature for Even Steadier Display

The rounding feature is used to give the user a steadier display with fluctuating signals. It causes the display to round to the nearest value according to the rounding value selected (1, 2, 5, 10, 20, 50, or 100). For example, with a rounding value of 10, and an input of 12346, the display would indicate 12350.

For example, with a rounding value of 10, and an input of 12346, the display would indicate 12350.

Toggling Between Reading & Units with Tag

The Helios can also be programmed so the upper line toggles between the reading and units and the lower line displays a tag. For instance, the upper line toggles between 9500 and Gal and the lower line displays Tank 1.

Toggling Between Reading & Units with Tag

Other Uses for Lower Line

The lower line can also be used to indicate units, a tag, or even a setpoint as the following pictures illustrate:

Other Uses for Lower Line

Reduce Sun Glare On Your Process Meter Display!

PDA24SH Sun Hood Accessory for PD2 and PD4 Meters

New PDA24SH Sun Hood

The PDA24SH Stainless Steel Sun Hood improves the readability of the Helios when mounted in direct sunlight by shading the instrument from the sun. The PDA24SH Sun Hood is made from 18 gauge 316 stainless steel and easily mounts to the enclosure of the meter.

PDA24SH Sun Hood Assembly
PDA24SH Sun Hood
  • Provides Shade for PD2 Helios Series Large Display Meters
  • Made from 18 Gauge 316 Stainless Steel

4-20 mA Output & Relays

4-20 mA Analog Output

The isolated analog retransmission signal can be configured to represent the process variable (PV), maximum (peak) value, minimum (valley) value, the value for any of the eight relay set points, or Modbus input. While the output is nominally 4-20 mA, the signal will accurately accommodate under- and over-ranges from 1 to 23 mA.

The 4-20 mA output can be reversed scaled such that 4 mA represents the high value and 20 mA represents the low value. For instance, a 4-20 mA output signal could be generated as the meter went from 100.0 to 0.0.

For applications where the input was linearized by the Helios, the 4-20 mA output will represent that linearized value.

Connections

The Helios can provide 40 mA at 24 VDC to power the 4-20 mA output signal or an external power supply can be used:

4-20 mA Output & Input Signal Powered by Meter

4-20 mA Output Powered by PD2-6000

4-20 mA Output Powered Externally

4-20 mA Output Powered by External Power Supply

The internal 24 VDC power supply powering the analog output may be used to power other devices, if the analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.

The 4-20 mA output can either be programmed using the front panel push buttons or free MeterView Pro software.

Front Panel Push Button Programming

The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected. No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal. The Analog Output menu is used to program the 4-20 mA output based on display values.

Front Panel Push Button Programming
MeterView Software Programming
MeterView Pro Software Scaling

When a meter is programmed as shown below, the output will be 4.00 mA when the display reads 0 and the output will be 20.00 mA when the display reads 150000.

MeterView Pro Software Reverse Scaling

The meter can be set up for reverse scaling as shown below: the output will be 4.00 mA when the display reads 150000 and the output will be 20.00 mA when the display reads 0.

MeterView Pro Software Scaling

Source: Source for generating the 4-20 mA output (e.g. PV)
Overrange: Analog output value with display in overrange condition
Underrange: Analog output value with display in underrange condition
Break: Analog output value when loop break is detected
Max: Maximum analog output value allowed regardless of input
Min: Minimum analog output value allowed regardless of input

Relays for Alarm & Control Applications

Adding relays to the Helios meter turns it into a sophisticated alarm device as well as a powerful, yet simple, alternative to a more complicated PLC system for control applications. One such application would be pump control using the Helio’s relays in pump alternation mode. The Helios can be equipped with four 3 A Form C (SPDT) internal relays. Relays are highly user-configurable as the following screen shot from MeterView Pro indicates:

Relays for Alarm & Control Applications

*Values are intended to show programming choices. They are not intended to represent an actual application.

  • Program Set and Reset Points (HI / LO Alarms)
  • Reset the Relays (Action in MV)
  • Time Delay (On and Off)
  • Relays Auto Initialization
  • Signal Loss or Loop Break Relay Operation
  • User Selectable Fail-Safe Operation

Relay connections are made to a six-terminal connector labeled RELAY1 - RELAY4.

Relay Connections

Multi-Pump Alternation

The Helios can be used as a pump controller when combined with a continuous level transmitter. The most common pump control application is shown below: controlling and alternating two pumps and providing high and low-level alarms. The light / horn accessory can be added to provide visual and audible alarm indication.

PD2-6000 Multi-Pump Alternation

Signal Input Conditioning

There are many applications in the industrial world that can’t be satisfied with simple, two-point linear scaling so the Helios has advanced linearization capabilities to handle applications like round horizontal tank volume measurement, open channel flow, DP flow, and others. And all of these capabilities are easily programmed using MeterView Pro programming software.

32-Point Linearization

The most common way to linearize a non-linear signal is to break it up into smaller ranges that are more linear than the overall range. The Helios is available with up to 32 points of linearization and if dual scale feature is used, the second PV can have up to eight points of linearization. The linearization data can be imported from an Excel spreadsheet or can be exported from MeterView Pro to an Excel spreadsheet. The following screen shot from MeterView Pro shows PV1 with 9 points of linearization and PV 2 with 5 points of linearization:

32-Point Linearization

Specialized Linearization Functions

In addition to the generic 32- and 8-point linearization functions, the Helios is also available with specialized functions for round horizontal tanks, open channel flow, and DP flow.

Round Horizontal Tank
Round Horizontal Tank

The user enters the diameter and length of a flat-ended round horizontal tank resulting in a display of volume.

Programmable Exponent
Programmable Exponent

The input is raised to an exponent progrmmable by the user resulting in a display of open channel flow rate.

Square Root Extraction
Square Root Extraction

The square root of the input is taken resulting in a display of flow rate.

Round Horizontal Tank Volume Linearizer
Round Horizontal Tank Volume Linearizer

In this application, a level sensor is measuring the height in the round horizontal tank and the Helios is converting that signal to volume using the RHT function. All the user has to do is input the diameter and length of the tank and the meter converts the signal to volume.

Open Channel Flow Rate Indication
Open Channel Flow Rate Indication

In this application, a level sensor is measuring the height in a weir and the Helios is converting that signal to flow rate using the programmable exponent function. All the user has to do is input the corresponding exponent for their weir and the meter will convert the signal to flow.

DP Flow via Square Root Extraction
DP Flow via Square Root Extraction




In this application, the PD2-6000 is displaying flow rate by extracting the square root from the 4-20 mA signal from a differential pressure transmitter. The user selectable low-flow cutoff feature gives a reading of zero when the flow rate drops below a user selectable value.

Physical Features

The most striking physical feature of the Helios meter is its dual-line 6-digit display with 1.8" high super-bright LEDs. These allow the display to be read from up to 100 feet away, even in bright sunlight.

The Helios is designed for ease-of-use in industrial applications where it will be exposed to wet, dusty, hot, cold and other adverse conditions. The Helios is housed in a rugged NEMA 4X enclosure, can operate over a wide temperature range, includes removable screw terminal connectors, and is UL Listed for electrical safety. All of these features are backed by a 3-year warranty.

Wide Operating Temperature Range

Wide Operating Temperature Range

The Helios can operate from -40 to 65°C (-40 to 150°F) meaning it can be installed in a wide variety of indoor and outdoor industrial applications. And over this range the Helios will drift no more than 0.005% of calibrated span/°C max from 0 to 65°C ambient and 0.01% of calibrated span/°C max from -40 to 0°C ambient.

Removable Screw Terminals

Removable Screw Terminal Connectors

Industrial applications require screw terminal connections for easy field wiring and the Helios goes one step further in convenience by making them removable also.

Forgiving Panel Cutout

Super-Bright 1.8" High LED Display

The Helios features super-bright 1.8" high LEDs; three times the height of standard digital panel meters.

Mounting Brackets

Integral Holes for Wall Mounting

The Helios’ back panel includes four holes for convenient wall mounting.

Type 4X / NEMA 4X Front Panel

Type 4X / NEMA 4X Front Panel

Not only does the Helios’ front panel UL Type 4X approval indicate it is waterproof, but it also indicates it is rugged. Part of the UL Type 4X test is to drop a 2 inch solid stainless steel ball from 8 feet on top of the meter’s cover.

USB Port for MeterView Pro Free Software

USB Port for Free MeterView Pro Software

Easily connect the Helios process meter to a PC with via the USB port for MeterView Pro programming software.

Operational Features

There are two ways the user can interact with the Helios to perform a variety of useful functions:

1. Three Function Keys Under the Front Cover

The default settings for the function keys are:

Three Front Panel Function Keys

2. Built-in Digital Inputs/Outputs

The Helios comes with five digital inputs and four digital outputs. The digital inputs can operate with the tare, reset tare, or interlock relays feature, force relays on from a signal from a PLC or relay on other equipment, and much more. The digital inputs can also be used to mimic the programming buttons, which are located behind a door and generally not accessible during operation. The digital outputs can be used to send signals to PLCs and other devices.

Built-in Digital Inputs/Outputs

The digital inputs are particularly useful for resetting the relays and a reset button is mounted on the Helios door when MOD-PD2LH is ordered:

Helios with Light/Horn and Reset Button

Plastic Control Stations For The Helios PD2-6000

Plastic Control Stations for Helios

The PDA2360 series of plastic control stations provide a convenient way to remotely control devices such as Precision Digital’s Helios PD2-6000. The PDA2364-MRUE four-position control station mimics the Helios’ four front panel buttons: Menu, Right Arrow, Up Arrow, and Enter. The PDA2360-E is an emergency stop button, the PDA2361-A is used to acknowledge an alarm, and the PDA2361-Q is to silence an alarm.

  • Complete Pre-Assembled Stations
  • Normally Open (NO) Spring Return Plastic Bezel Pushbuttons
  • Trigger Action Turn to Release Pushbutton (PDA2360-E only)
  • IP65 / NEMA 4, 4X and 13 Rated
  • Four-Position Control Station for Remote Operation of Helios Buttons
  • Wall Mountable
PDA2360 Series Control Stations
ModelDescription
PDA2360-EEmergency Stop Button
PDA2361-A1 Black Ack Button
PDA2361-Q1 Black Silence Button
PDA2364-MRUE4 Black Buttons: Menu, Right, Up, Enter

Four-Position Control Station for Remote Operation of Helios Buttons

The PD2-6000's four internal programming and operations buttons can be remotely controlled by using the PDA2364-MRUE 4-button control station accessory as shown in the diagram below.

Four-Position Control Station for Remote Operation of Helios PD2-6000 Buttons

Light/Horn & Button Mounted to Helios

Light / Horn & Reset Button Mounted to Enclosure

The Helios can be provided with an optional light(s) with built-in 85 dB horn that comes mounted and wired to the instrument or as separate items to be mounted as the user desires. Meter and MOD-PD2LH are sold separately. The light(s) and horn can be controlled independently of each other via separate relays on the Helios.

These relays can be programmed for automatic or manual reset action to satisfy a wide variety of audible and visual alarm applications. The light can be programmed to flash (not available on MOD-PD2LH5CB1) or stay steady-on. The Light / Horn and Reset Button do not affect the Helios’s NEMA 4X rating, but do void its UL approval. While there are many ways the Light / Horn can be wired and programmed, the following is the default wiring and programming from the factory:

Relay #Connected toTypical reset method (user selectable)
1Flashing Light(1)Auto reset
2HornSilence with Reset Button at any time
3User DeviceAs user desires
4User DeviceAs user desires

1. Light can be wired to flash or stay steady on

Note: The Light / Horn accessory is powered from the 200 mA transmitter power supply; so when it is installed, there is less power available for the transmitter. See Transmitter Power Supply specification in MOD-PD2LH manual for details.

Light/Horn Series Demonstration Video

Note: These specifications apply to the entire product series and may contain information that is not relevant to this particular model number.

Except where noted all specifications apply to operation at +25°C.

General

DisplayDual-line: 1.8" (46 mm) high, red LEDs
6 digits per line (-99999 to 999999), with lead zero blanking
Display IntensityEight user selectable intensity levels. Default value is six.
Display Update Rate5/second (200 ms)
LED Status IndicatorsSee the manual for details.
OverrangeDisplay flashes 999999
UnderrangeDisplay flashes -99999
Display AssignmentDisplay Line 1: PV1, PV2, PCT, PV & units, gross weight, net & gross weight, max/min, max & min, set points, or Modbus input.
Display Line 2: Same as Display Line 1; plus units, tag or turned off.
Programming MethodsFour programming buttons, digital inputs, PC and MeterView Pro software, or Modbus registers.
Noise FilterProgrammable from 2 to 199 (0 will disable filter)
Filter BypassProgrammable from 0.1 to 99.9% of calibrated span
RecalibrationAll ranges are calibrated at the factory. Recalibration is recommended at least every 12 months.
Max/Min DisplayMax/min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
RoundingSelect 1, 2, 5, 10, 20, 50, or 100
(e.g. rounding = 10, value = 123.45, display = 123.50).
TareTare function zeros out the meter to remove the for weight of a container. Tare function can be assigned to a function key, F4 terminal, or a digital input.
PasswordThree programmable passwords restrict modification of programmed settings.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
Non-Volatile MemoryAll programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Power Options85-265 VAC 50/60 Hz; 90-265 VDC, 20 W max;
12-24 VDC, 12-24 VAC, 15 W max.
Powered over USB for configuration only.
FuseRequired external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse
Normal Mode RejectionGreater than 60 dB at 50/60 Hz
Isolation4 kV input/output-to-power line 500 V input-to-output or output-to-P+ supply
Overvoltage CategoryInstallation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.
EnvironmentalOperating Temperature: -40 to 65°C (-40 to 149°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Relative Humidity: 0 to 90% non-condensing
Note: Printed circuit boards are conformally coated.
ConnectionsPower, signal, relays, mA out: Removable screw terminal blocks accept 12 to 22 AWG wire.
RS-485: Removable screw terminal block accepts 16 to 30 AWG wire.
Digital I/O: Non-removable screw terminal blocks accept 16 to 30 AWG wire.
EnclosureUL Type 4X, IP65 rated. Polycarbonate & glass blended plastic case, color: gray.
Includes four PG11 through-hole conduit openings, with two factory installed PG11, IP68, black nylon threaded hole plugs with backing nuts.
MountingWall Mounting: Four (4) mounting holes provided for mounting meter to wall.
Pipe Mounting: Optional pipe mounting kit (PDA6260) allows for pipe mounting. Sold separately.
See manual for wall-mounting and pipe-mounting instructions.
Tightening TorquePower, signal, relays, mA out terminals: 5 lb-in (0.56 Nm)
Digital I/O and RS-485: 2.2 lb-in (0.25 Nm)
Overall Dimensions10.63" x 12.59" x 4.77"
(270 mm x 319.7 mm x 121.2 mm)
(W x H x D)
Weight6.10 lbs (2.76 kg)
Warranty3 years parts and labor. See Warranty Information and Terms & Conditions for complete details.


Process Inputs

InputsField selectable: 0-20 mA, 4-20 mA
±10 V (0-5 V, 1-5 V, 0-10 V)
Modbus PV (Slave)
Isolated Transmitter Power SupplyTerminals P+ & P-: 24 VDC ±10%.
All models selectable for 24, 10, or 5 VDC supply (Switch labeled P+/P-).
85-265 VAC models rated @ 200 mA max, 12-24 VDC powered models rated @ 100 mA max.
5 & 10 VDC supply rated @ 50 mA max.
Refer to Transmitter Supply Voltage Selection (P+, P-) in the instruction manual.
When the Light / Horn is powered by the transmitter power supply, see MOD-PD2LH Light / Horn's transmitter power supply specification in MOD-PD2LH manual for additional details. Light / Horn power not available for 5 or 10 VDC supplies.
Accuracy±0.03% of calibrated span ±1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span
Temperature Drift0.005% of calibrated span/°C max from 0 to 65°C ambient, 0.01% of calibrated span/°C max from -40 to 0°C ambient
Input Signal ConditioningLinear, square root, programmable exponent, or round horizontal tank volume calculation
Multi-Point Linearization2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale level feature)
Programmable ExponentUser selectable from 1.0001 to 2.9999 for open channel flow
Round Horizontal TankDiameter & Length: 999.999 inch or cm calculates volume in gallons or liters respectively.
Low-Flow Cutoff0.1 to 999,999 (0 disables cutoff function).
Point below at which display always shows zero.
Decimal PointUp to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Calibration Range

Input RangeMinimum Span Input 1 & 2
4-20 mA0.15 mA
±10 V0.10 V
An error message will appear if the input 1 and input 2 signals are too close together.
Input ImpedanceVoltage ranges: greater than 500 kΩ
Current ranges: 50 - 100 Ω (depending on internal resettable fuse impedance)
Input OverloadCurrent input protected by an internal resettable fuse, 30 VDC max.
Fuse resets automatically after fault is removed.
HART TransparencyThe meter does not interfere with existing HART communications; it displays the 4‑20 mA primary variable and it allows the HART communications to pass through without interruption. The meter is not affected if a HART communicator is connected to the loop. The meter does not display secondary HART variables.


Relays

Rating4 SPDT (Form C) internal and rated 3 A @ 30 VDC and 125/250 VAC resistive load;
1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads
Noise SuppressionNoise suppression is recommended for each relay contact switching inductive loads.
See Switching Inductive Loads in the manual for details.
Deadband0-100% of span, user programmable
High or Low AlarmUser may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
Relay Operation
  • Automatic (non-latching) and/or manual reset
  • Latching (requires manual acknowledge) with or without clear
  • Pump alternation control (2-4 relays)
  • Sampling (based on set point and time)
  • Off (disable unused relays and enable Interlock feature)
  • Manual on/off control mode
Relay Reset (Acknowledge)User selectable via front panel button, F4 digital input, external contact closure on digital inputs, or through serial communications.
Time Delay0 to 999.9 seconds, on & off relay time delays.
Programmable and independent for each relay.
Fail-Safe OperationProgrammable and independent for each relay.
Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state.
Auto InitializationWhen power is applied to the meter, relays will reflect the state of the input to the meter.


Isolated 4-20 mA Transmitter Output

Output SourceProcess variable (PV), max, min, set points 1-4, Modbus input, or manual control mode
Scaling Range1.000 to 23.000 mA for any display range
CalibrationFactory calibrated: 4.000 to 20.000 = 4-20 mA output
Analog Out Programming23.000 mA maximum for all parameters: Overrange, underrange, max, min, and break
Accuracy± 0.1% of span ± 0.004 mA
Temperature Drift0.4 μA/°C max from 0 to 65°C ambient,
0.8 μA/°C max from -40 to 0°C ambient
Note: Analog output drift is separate from input drift
Isolated Transmitter Power SupplyTerminals I+ & R: 24 VDC ±10%.
May be used to power the 4-20 mA output or other devices.
All models rated @ 40 mA max.
External Loop Power Supply35 VDC maximum
Output Loop Resistance
Power supplyMinimumMaximum
24 VDC10 Ω700 Ω
35 VDC (external)100 Ω1200 Ω
Additional 4-20 mA OutputsThe PD659-1MA-2MA can split the optional 4-20 mA output into two isolated 4-20 mA outputs
0-10 VDC OutputThe PD659-1MA-1V can convert the optional 4-20 mA output to a 0-10 VDC signal


USB Connection

FunctionProgramming only
CompatibilityUSB 2.0 Standard, Compliant
Connector TypeType B receptacle
CableUSB Type A-B cable
DriverMicrosoft® Windows® XP/Vista/7/8/10
PowerUSB port provides power to the meter. DO NOT apply AC or DC power to the meter while the USB port is in use.


Digital Input (F4)

FunctionRemote operation of front-panel buttons, acknowledge/reset relays, reset max/min values.
See Function Keys & Digital I/O Available Settings in the manual for a complete list of capabilities.
Contacts3.3 VDC on contact. Connect normally open contacts across F4 to COM
Logic LevelsLogic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC


Digital Inputs & Outputs

FunctionTerminals provided for remote operation of all four programming / operation buttons (use PDA2364-MRUE control station).
Other uses include acknowledge/reset relays and reset max/min values.
See Function Keys & Digital I/O Available Settings in the manual for a complete list of capabilities.
Channels4 digital inputs & 4 digital outputs
Digital Input Logic High3 to 5 VDC
Digital Input Logic Low0 to 1.25 VDC
Digital Output Logic High3.1 to 3.3 VDC
Digital Output Logic Low0 to 0.4 VDC
Source Current10 mA maximum output current
Sink Current1.5 mA minimum input current
+5 V TerminalTo be used as pull-up for digital inputs only. Connect normally open push buttons across +5 V & DI 1-4.
WARNING: DO NOT use +5 V terminal to power external devices.


RS-485 Serial Communications

CompatibilityEIA-485
ConnectorsRemovable screw terminal connector
Max Distance3,937' (1,200 m) max
Status IndicationSeparate LEDs for Power (P), Transmit (TX), and Receive (RX)


Modbus® RTU Serial Communications

Slave Id1 – 247 (Meter address)
Baud Rate300 – 19,200 bps
Transmit Time DelayProgrammable between 0 and 199 ms
Data8 bit (1 start bit, 1 or 2 stop bits)
ParityEven, Odd, or None with 1 or 2 stop bits
Byte-To-Byte Timeout0.01 – 2.54 second
Turn Around DelayLess than 2 ms (fixed)
Note: Refer to the Helios Modbus Register Tables for details.


MeterView Pro Software

AvailabilityDownload directly from meter or from www.predig.com/software
System RequirementsMicrosoft® Windows® 10 and 11
CommunicationsUSB 2.0 (for programming only)
(Standard USB A to USB Type B)
RS-485 to USB converter (programming, monitoring, and data logging)
ConfigurationConfigure meters one at a time
PowerUSB port provides power to the meter.
DO NOT apply AC or DC power to the meter while the USB port is in use.


Compliance Information

Safety

UL & C-UL ListedUSA and Canada
UL 508 Industrial Control Equipment
UL File NumberE160849
Front PanelUL Type 4X, NEMA 4X, IP65
Low Voltage DirectiveEN 61010-1
Safety requirements for measurement, control, and laboratory use

Note: This tab applies to the entire product series and may contain information that is not relevant to this particular model number.

MeterView Pro Programming Software

Configure, monitor, or datalog any Helios series meter using the PC-based MeterView Pro (MVP) software. MVP is available here as a free download and is also included with every ProVu, Helios, and ProVu-based ProtEX-MAX. MVP is easily installed from the onboard USB connection and makes complete meter configuration simple and fast. Copying one meter configuration to another, as well as saving or retrieving a meter configuration file, is a snap. MVP's linearization utility makes even a 32-point linearization task clear and easy to do. Also included is a basic meter monitor and data logger for use with the ProVu, Helios, or ProtEX-MAX meter. Of course, with the inclusion of the powerful Modbus® protocol, custom programs can be made even more versatile.

MeterView Pro Software

For more information visit www.predig.com/meterviewpro

Dimensions

Front and Side View

Units: Inches (mm)

Helios PD2 Dimensions

Wall Mounting Holes Location

Wall Mounting Holes Location

Conduit Holes Location

Conduit Holes Location

Bottom View

Connections

Connectors Labeling

Helios PD2 Connectors Labeling

Connections for Fully Loaded PD2-6000

Wiring Diagrams

Power Connections

Power connections are made to a two-terminal connector labeled POWER. The meter will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention. There are separate models for low voltage and high voltage power. See Ordering Information on page 6 for details.

PD6000 4-20 mA Output Connections

Signal Connections

Signal connections are made to a six-terminal connector labeled SIGNAL. The COM (common) terminal is the return for the 4-20 mA and the ±10 V input signals.

Current (mA) Connections

There are no switches or jumpers to set up for current inputs. Setup and programming is performed through the front panel buttons or MeterView Pro software.

The current input is protected against current overload by an internal resettable fuse. The display may or may not show a fault condition depending on the nature of the overload.

The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.

Transmitters Powered by Internal
Supply

Transmitters Powered by Internal Supply

PD4-6600 4-20mA Connection with Backlight

Transmitter Powered by External Supply or Self-Powered Transmitter

Voltage (V) Connections

There are no switches or jumpers to set up for voltage inputs. Setup and programming is performed through the front panel buttons or MeterView Pro software.

The meter is capable of accepting any voltage from -10 VDC to +10 VDC.

PD4-6600 Digital Input Connection

Relay Connections

Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal of the INPUT SIGNAL connector

PD6000 Relay Connections

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input should be connected with a normally open contact across F4 and COM, or with an active low signal applied to F4. It can be used for remote operation of front-panel buttons, to acknowledge/reset relays, or to reset max/min values.

F4 Digital Input Connections

4-20 mA Output Connections

Connections for the 4-20 mA transmitter output are made to the connector terminals labeled mA OUT. The 4-20 mA output may be powered internally or from an external power supply.

PD6000 4-20 mA Output Connections

Wiring Connections for MOD-PD2LH Models

The following diagrams are for MOD-PD2LH models with a single color light. See MOD-PD2LH manual for wiring connections for MOD-PD2LH5CB1 and MOD-PD2LH3CB1-RYG models.

Using the Helios's Internal Power Supply

The Helios can be wired to power both the Light / Horn accessory as well as the transmitter input and isolated 4-20 mA output as the following diagram illustrates.

MOD-PD2LH Connections using Internal Power Supply

Using External Power Supply (PDA1024-01)

Transmitters and sensors that require additional power must be powered by an external power source, such as the PDA1024 as the following diagram illustrates.

MOD-PD2LH Connections using External Power Supply

See the PD2-6000 Instruction Manual for more wiring diagrams.

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SKU: PD2-6000-6H7
Stock: 0
Lead Time: 13 business days
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Price$1,324.00

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