What sets the Helios apart from other Large Display Meters is its dual line display with super bright LEDs that can be read even in bright sunlight and up to 100 feet away. Based on Precision Digital's popular line of ProVu® digital panel meters, the Helios can satisfy a wide variety of level, flow, temperature, pressure, & weight applications. It is available with models that accept 4-20 mA, thermocouple, RTD, pulse, strain gauge, AC and DC volts and current, and even Modbus®.
Go with the Helios PD2-6310 when you need to do batch controlling using a pulse output flowmeter. The PD2-6310's huge display means operators don't have to be close up to the instrument to monitor the status of the batching application. And its NEMA 4X, IP65 rated field mountable enclosure allows the PD2-6310 to be mounted in wet, dusty, and dirty areas. The PD2-6310 can handle single and multi-stage batching applications.
Pulse, Open Collector, NPN, PNP, TTL, Switch Contact, Sine Wave (Coil), Square Wave
- Large 1.80" Digits
- Dual Line Display
- Six Full Digits on Each Line
- Readable From 100 Feet Away
- Superluminous Sunlight Readable Display
- NEMA 4X, IP65 Rated Field Mountable Enclosure
- Great for Outdoor Use: -40 to 150°F (-40 to 65°C)
- Program the Meter from a PC with Onboard USB and MeterView® Pro
- 5, 10, or 24 V Flowmeter Power Supply
- K-Factor, Internal Scaling, or External Calibration
- Start, Batch, Pause, & Stop with Front Panel Buttons
- Display Batch Total + Rate, Grand Total, Batch Count or Preset
- Single or Multi-Stage Batching with up to 8 Relays
- Automatic Overflow Protection
- Manual Control or Automatic Batching
- 32-Point Linearization
- On-board Digital Input (for Remote Reset)
- Count Up or Down, Total & Grand Total
Except where noted all specifications apply to operation at +25°C.
GeneralDisplay: Two lines with 1.8" (46 mm) high digits, red LEDs; 6 digits per line (-99999 to 999999), with lead zero blanking
Display Intensity Eight user selectable intensity levels
Display Update Rate: 5/second (200 ms)
Overrange: Display flashes 999999
Underrange: Display flashes -99999
Display Assignment: Display lines 1 & 2 may be assigned to rate, total, grand total, batch count, preset, set points, units (lower display only), alternating R & T, R & GT, preset & rate, max & min, or a Modbus display register. Any rate/total/grand total display may be programmed to alternate with a custom unit or tag.
Programming Methods: Four programming buttons, digital inputs, PC and MeterView Pro software, or Modbus registers.
Noise Filter: Programmable from 2 to 199 (0 will disable filter)
Filter Bypass: Programmable from 0.1 to 99.9% of calibrated span
Recalibration: All ranges are calibrated at the factory. Recalibration is recommended at least every 12 months.
Max/Min Display: Max/min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Password: Three 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.
Power Options: 85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or 12-24 VDC ± 10%, 15 W max. Powered over USB for configuration only.
Isolated Transmitter Power Supply: Terminals P+ & P-: 24 VDC ± 10%. 12-24 VDC powered models selectable for 24, 10, or 5 VDC supply (internal P+/P- switch). 85-265 VAC models rated @ 200 mA max, 12-24 VDC powered models rated @ 100 mA max, @ 50 mA max for 5 or 10 VDC supply.
Non-Volatile Memory: All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Fuse: Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse
Normal Mode Rejection: Greater than 60 dB at 50/60 Hz
Isolation: 4 kV input/output-to-power line; 500 V input-to-output or output-to-P+ supply
Overvoltage Category: Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.
Environmental: Operating temperature range: -40 to 150°F (-40 to 65°C); Storage temperature range: -40 to 185°F (-40 to 85°C); Relative humidity: 0 to 90% non-condensing
Connections: Removable and integrated screw terminal blocks accept 12 to 22 AWG wire.
Enclosure: UL 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.
Wall 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 PD2-6310 manual for instructions.Tightening Torque: Removable Screw Terminals: 5 lb-in (0.56 Nm); Digital I/O and RS485 Terminals: 2.2 lb-in (0.25 Nm)
Overall Dimensions: 10.63" x 12.59" x 4.77" (270 mm x 319.7 mm x 121.2 mm) (H x W x D)
Weight: 6.10 lbs (2.76 kg)
UL File Number: UL & C-UL Listed. E160849; 508 Industrial Control Equipment.
Warranty: 3 years parts & labor
USB Connection: Compatibility: USB 2.0 Standard, Compliant
Connector Type: Micro-B receptacle
Cable: USB A Male to Micro-B Cable
Driver: Windows 98/SE, ME, 2000, Server 2003/2008, XP 32/64-Bit, Vista 32/64-Bit, Windows 7 32/64-Bit, Windows 10 32/64-Bit
Power: USB Port
Pulse InputInputs: Field selectable: Pulse or square wave 0-5 V, 0-12 V, or 0 24 V @ 30 kHz; TTL; open collector 4.7 k pull-up to 5 V @ 30 kHz; NPN or PNP transistor, switch contact 4.7 k pull-up to 5 V @ 40 Hz; Modbus PV (Slave)
Low Voltage Mag Pickup (Isolated): Sensitivity: 40 mVp-p to 8Vp-p
Minimum Input Frequency:0.001 Hz
Minimum frequency is dependent on high gate setting.
Maximum Input Frequency:30,000 Hz (10,000 for low voltage mag pickup)
Input Impedance:Pulse input: Greater than 300 kΩ @ 1 kHz.
Open collector/switch input: 4.7 kΩ pull-up to 5 V.
Accuracy: ±0.03% of calibrated span ±1 count
Temperature Drift: Rate display is not affected by changes in temperature.
Multi-Point Linearization: 2 to 32 points
Low-Flow Cutoff:0-999999 (0 disables cutoff function)
Decimal Point: Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Calibration:May be calibrated using K-factor, internal calibration, or by applying an external calibration signal.
K-Factor: Field programmable K-factor converts input pulses to rate in engineering units. May be programmed from 0.00001 to 999,999 pulses/unit.
Calibration Range: Input 1 signal may be set anywhere in the range of the controller; input 2 signal may be set anywhere above or below input 1 setting. Minimum input span between any two inputs is 10 Hz. An error message will appear if the input 1 and input 2 signals are too close together.
Filter: Programmable contact de-bounce filter: 40 to 999 Hz maximum input frequency allowed with low speed filter.
Time Base: Second, minute, hour, or day
Gate: Low gate: 0.1-99.9 seconds; High gate: 2.0-999.9 seconds
F4 Digital Input Contacts: 3.3 VDC on contact. Connect normally open contacts across F4 to COM.
F4 Digital Input Logic Levels: Logic High: 3 to 5 VDC; Logic Low: 0 to 1.25 VDC
Batch Controller Rate/Totalizer DisplayRate Display Indication: -99999 to 999999, lead zero blanking. "R" LED illuminates while displaying rate.
Batch Total & Grand Total Display: 0 to 999,999; automatic lead zero blanking. "T" LED is illuminated while displaying batch total. "GT" LEDs are illuminated while displaying grand total. Up to 999,999 for batch total/preset. Up to 999,999,999 with grand total-overflow feature. "oF" is displayed to the left of grand total overflow and ▲ LED is illuminated.
Batch Total Decimal Point: Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Total decimal point is independent of rate decimal point.Totalizer: Calculates total based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to the time units in which the rate is displayed.
Grand Totalizer Rollover: Grand totalizer rolls over when display exceeds 999,999,999. Relay status reflects display.
Grand Total Alarms: Up to seven, user selectable under setup menu. Any set point can be assigned to grand total and may be programmed anywhere in the range of the controller for grand total alarm indication. Relay 1 should always be assigned to batch.
Programmable Delay On Release: 0.1 and 999.9 seconds; applied to the first relay assigned to total or grand total.
If the controller is programmed to reset total to zero automatically when the preset is reached, then a delay will occur before the total is reset.
Grand Total Reset: Via front panel button, external contact closure on digital inputs, automatically via user selectable preset value and time delay, or through serial communications.
Grand Total Reset Password: Grand total passwords may be entered to prevent resetting the grand total from the front panel.
Non-Resettable Grand Total: The grand total can be programmed as a non-resettable total by entering the password "050873".
CAUTION! Once the Grand Total has been programmed as "non-resettable" the feature cannot be disabled.
RelaysRating: 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads
Noise Suppression: Noise suppression is recommended for each relay contact switching inductive loads. See manual for details.
Deadband: 0-100% of span, user programmable
High Or Low Alarm: User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turn off).
Relay Operation:Primary Functions: Batch Control, Automatic (non-latching)1, Sampling (based on time), Off (disable unused relays and enable Interlock feature), Manual on/off control modeSecondary Functions2: Pump alternation control (2 to 4 relays), Latching (requires manual acknowledge)1Alarms are active only when the batch is running.2These operations are not functional when the unit is being used as a batch controller with total set to yes.
Relay Reset: User selectable via front panel buttons or digital inputs
- Automatic reset only (non-latching), when the input passes the reset point.
- Automatic + manual reset at any time (non-latching)
- Manual reset only, at any time (latching)
- Manual reset only after alarm condition has cleared (latching)
Time Delay: 0 to 999.9 seconds, on & off relay time delays; Programmable and independent for each relay
Fail-Safe Operation: Programmable 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 Initialization: When power is applied to the meter, relays will reflect the state of the input to the meter.
Isolated 4-20 mA Transmitter OutputOutput Source: Process variable (PV), max, min, set points 1-4, Modbus input, or manual control mode
Scaling Range: 1.000 to 23.000 mA for any display range
Calibration: Factory calibrated: 4.000 to 20.000 = 4-20 mA output
Analog Out Programming: 23.000 mA maximum for all parameters: Overrange, underrange, max, min, and break
Accuracy: ± 0.1% of span ± 0.004 mA
Temperature Drift: 0.4 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 Supply: Terminals I+ & R: 24 VDC ± 10%. Isolated from the input at >500 V. May be used to power the 4-20 mA output or other devices. All models rated @ 40 mA max.
External Loop Power Supply: 35 VDC maximum
Output Loop Resistance:
|24 VDC||10 Ω||700 Ω|
|35 VDC (external)||100 Ω||1200 Ω|
RS485 Serial Communications TerminalCompatibility: EIA-485
Connectors: Removable screw terminal connector
Max Distance: 3,937' (1,200 m) max
Status Indication: Separate LEDs for Power (P), Transmit (TX), and Receive (RX)
Modbus® RTU Serial Communications ProtocolSlave: ID 1 – 247 (Meter address)
Baud Rate: 300 – 19,200 bps
Transmit Time Delay: Programmable between 0 and 199 ms
Data: 8 bit (1 start bit, 1 or 2 stop bits)
Parity: Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte Timeout: 0.01 – 2.54 second
Turn Around Delay: Less than 2 ms (fixed)
Note: Refer to the Modbus Register Tables located at www.predig.com for details.
Digital Input & Output TerminalChannels: 4 digital inputs & 4 digital outputs
Digital Input Logic High: 3 to 5 VDC
Digital Input Logic Low: 0 to 1.25 VDC
Digital Output Logic High: 3.1 to 3.3 VDC
Digital Output Logic Low: 0 to 0.4 VDC
Source Current: 10 mA maximum output current
Sink Current: 1.5 mA minimum input current
+5 V Terminal: To be used as pull-up for digital inputs only. Connect normally open pushbuttons across +5 V & DI 1-4.
WARNING! DO NOT use +5 V terminal to power external devices.
Single and Multi-Stage Batching
The Helios can be used as a single or multi-stage batch controller. Relays assigned to the total act as batch control relays, with additional relays beyond the first including a preclose value. The preclose deactivates the relay before the batch is finished, to allow slower fill rates and a more accurate batch finish. With expansion module relays, up to eight-stage batching is possible. Each additional stage batching relay has an individually programmable preclose amount.
Single Stage Batch Control
Multi-Stage Batch Control
Manual Multi-Stage Batch Control Operation
1. Both valves are closed with an empty barrel in place. The batched total is displayed in the upper display, the preset is selected for the lower display.
2. The START button is pressed, with both valves open. The barrel begins to fill.
3. When the batch total reaches a value of 50.00 (Preset [55.00] Preclose [5.00]) the full-flow valve closes. The fill rate of the tank slows as a result.
4. When the batch total equals the preset amount, the restricted-flow valve closes. The barrel is now full. If some overrun occurs, the next batch will adjust for this offset amount to maintain accuracy.
5. After placing a new, empty barrel, a new preset fill amount may be selected with the Batch key, while the process is stopped.
|Begin New Batch|
6. Press the START key and a new batch will begin. With both valves open, the process continues.
7. At any time, the STOP button may be pressed, once to Pause the process, or twice to cancel the batch, which stops the process.