ProVu with PDA18DINSH Sun Hood (Sold Separately)
UL ListingEuropean Conformity


  • Ideal Replacement for Bitronics Model GSDIE1
  • Bitronics to 1/8 DIN Adapter Mounting Plate Available
  • 1/8 DIN Digital Panel Meter with NEMA 4X, IP65 Front
  • (1) High Voltage Input and (1) mV Input
  • True RMS AC with Crest Factor of 2 at Full Scale
  • 0-300 VAC or VDC Voltage Input
  • 0-150 mV AC or DC Input from Current Shunt
  • Easy Field Scaling
  • Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)
  • UL & C-UL Listed. E160849; 508 Industrial Control Equipment
  • 3-Year Warranty


The ProVu PD6402 is a True RMS High Voltage & mV to Current Meter and is an ideal replacement for the discontinued Bitronics GSDIE1. It will simultaneously measure a direct line voltage up to 300 V and a current shunt output up to 150 mV. The mV input can be scaled to represent current (A). The PDA6018 adapter plate allows for use of existing mounting cutouts. Extra bright LEDs make for easy reading, even in adverse lighting conditions. The PD6402 is frequently used to monitor field excitation voltage and current during start up and shut down of generating equipment.

Mounting Dimensions

PD6402 Panel Cutout
Meter Dimensions - Side View
PD6402 Panel Cutout
Meter Dimensions - Top View


All connections are made to removable screw terminal connectors located at the rear of the meter.

Connectors Labeling

PD6402 Connector Labeling
PD6402-6R0 Connectors Label
PD6402 Connector Labeling
DC Current Shunt and Voltage Connections


PDA6018 Mounting Plate

Precision Digital offers the PDA6018 Bitronics 4" round meter to 1/8 DIN meter adapter mounting plate. The PDA6018 plastic mounting plate is designed for mounting the PD6402 ProVu high voltage & mV to current meter into the existing cutout of the discontinued Bitronics GSDIE1 dual channel DC Amp / Volt meter.

PDA6018 Panel Mounting Kit for PD6402
PD6402 Mounted with PDA6018 Adapter Mounting Plate
PDA6018 Panel Mounting Kit for PD6402
PDA6018 Panel Mounting Kit Dimensions and Cutout

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


Display: Line 1: 0.60" (15 mm) high, red LEDs Line 2: 0.46" (12 mm) high, red LEDs 6 digits each (-99999 to 999999), with lead zero blanking
Display Intensity: Eight user selectable intensity levels. Default is six.
Display Update Rate: 5/second (200 ms)
Overrange: Display flashes 999999
Underrange: Display flashes -99999
Display Assignment: Either display line may be assigned to the voltage (channel V) or mV (Channel A) input
Programming Methods: Four front panel 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 each displayed input type are stored until reset by the user or until power to the meter is cycled.
Rounding: Select 1, 2, 5, 10, 20, 50, or 100 (e.g. rounding = 10, value = 123.45, display = 123.50).
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.
Non-Volatile Memory: All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Power Options: 85-265 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.
Fuse: Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse
Isolation: 500 V AC/DC potential allowed between voltage and current input channels. Channels isolated by 3 MΩ impedance 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 65°C (-40 to 149°F)
Storage temperature range: -40 to 85°C (-40 to 185°F)
Relative humidity: 0 to 90% non-condensing
Connections: Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters.
Enclosure: 1/8 DIN, high impact plastic, UL 94V-0, color: black
Front Panel: NEMA 4X, IP65
Mounting: 1/8 DIN panel cutout required: 3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket assemblies are provided.
Optional PDA6018 mounting plate available to accommodate existing Bitronics panel cutout.
Tightening Torque: Screw terminal connectors: 5 lb-in (0.56 Nm)
Overall Dimensions: 4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm) (W x H x D)
Weight: 9.5 oz (269 g)
Warranty: 3 years parts & labor. See Warranty Information and Terms & Conditions on for complete details.

High Voltage & mV Inputs

High Voltage Input: One high voltage input (Channel V) 0-300 VDC or VAC; Switch Selectable
mV Input: One mV input (Channel A) 0-150 mV; Switch Selectable
Factory Default: 0-100 mV input corresponds to 0.000 to 0.100 display. User may scale for different ranges.
Crest Factor: 2 at full scale (Vp / Vrms)
AC Frequency: 30 to 400 Hz
Response Time: 5 seconds to rated accuracy
Channels: Channel A, Channel V, Channel P (Math Channel for Apparent Power)
AC/DC Selection: Switch selectable for AC or DC inputs. Channels A and V share AC/DC selection.
Apparent Power Math: Apparent power P calculated as P = ((A * V) + C) * F
Programmable Constants: Constant C (Adder): -99.999 to 999.999, default: 0.000
Constant F (Factor): 0.001 to 999.999, default: 1.000
Accuracy: mV DC: 0.03% Full Scale ±1 count,
mV AC: 0.1% Full Scale ±1 count,
VDC: 0.05% Full Scale ±1 count,
VAC: 0.15% Full Scale ±1 count
Temperature Drift: 0.005% of calibrated span/C max from -40 to 65C ambient
Multi-Point Linearization: 2 to 32 points for Channel A and V
Low-Value Cutoff: 0.1 to 999,999 (0 disables cutoff function). Point below at which the display always shows zero. Independent for Channel A and V.
Decimal Point: Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Calibration Range:

Input ChannelInput RangeMinimum Span Input 1 & Input 2
 A ± 0-150 mV DC 0-150 mV AC ± 0.5 mV DC 1 mV AC
 V ± 0-300 VDC 0-300 VAC ± 0.1 VDC 0.3 VAC
An error message will appear if the input 1 and input 2 signals are too close together.
Input Impedance: Voltage Input: 6 MΩ differential input
Current Input: 0.01 Ω
Display Resolution: 1 display count
Input Overload: Voltage input protected up to 500 VDC
mV current input protected up to 10 VDC
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


Rating: 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.
Relay Assignment: Each relay independently assigned to Ch-A, Ch-V, CH-P, or Modbus input
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:

  • Automatic (non-latching) and/or manual reset
  • Latching (requires manual acknowledge) with or without clear
  • Pump alternation control (2-8 relays)
  • Sampling (based on set point and time)
  • Off (disable unused relays and enable Interlock feature)
  • Manual on/off control mode
Relay Reset: User selectable via front panel button, F4 terminal at back of meter, external contact closure on digital inputs, or through serial communications.
  1. Automatic reset only (non-latching), when the input passes the reset point.
  2. Automatic + manual reset at any time (non-latching)
  3. Manual reset only, at any time (latching)
  4. Manual reset only after alarm condition has cleared (L)
Note: Front panel button, F4 terminal at back of meter or digital input may be assigned to acknowledge relays programmed for manual reset.
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.
Break Condition Operation: Relay condition when sensor break detected. Programmable independently for each relay as On, Off, or Ignore (maintain last condition).
Auto Initialization: When power is applied to the meter, relays will reflect the state of the input to the meter.
Additional Relays: An external module, model PDA1004, is available to add 4 SPST 3 A relays to the meter.

Isolated 4-20 mA Transmitter Output

Output Source: Process channel A, V, or P, max or min for channel A, V, or highest or lowest max or min of A and V, set points 1-8, 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% @ 40mA. 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:

Power supplyMinimumMaximum
24 VDC10 Ω700 Ω
35 VDC100 Ω1200 Ω
Additional 4-20 mA Outputs: The PD659-1MA-2MA can split the optional 4-20 mA output into two isolated 4-20 mA outputs
0-10 VDC Output: The PD659-1MA-1V can convert the optional 4-20 mA output to a 0-10 VDC output

USB Connection

Function: Programming only
Compatibility: USB 2.0 Standard, Compliant
Connector Type: Micro-B receptacle
Cable: USB A Male to Micro-B Cable
Driver: Microsoft® Windows® XP/Vista/7/8/10
Power: USB port provides power to the meter.
DO NOT apply AC or DC power to the meter while the USB port is in use.

On-Board Digital Input (F4)

Function: Remote operation of front-panel buttons, acknowledge/reset relays, reset max/min values.
See manual for a complete list of capabilities.
Contacts: 3.3 VDC on contact. Connect normally open contacts across F4 to COM
Logic Levels: Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Additional I/O: Up to 2 external modules, model PDA1044 with 4 digital inputs and 4 digital outputs each can be added.

Modbus® RTU Serial Communications

Slave 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 PROVU Modbus Register Tables located at for details.

MeterView Pro

Availability: Download directly from meter or from
System Requirements: Microsoft® Windows® XP/Vista/7/8/10
Communications: USB 2.0 (for programming only) (Standard USB A to Micro USB B)
RS-232 adapter, RS-485 adapter and RS-485 to USB converter (programming, monitoring, and data logging)
Configuration: Configure meters one at a time
Power: USB port provides power to the meter.
DO NOT apply AC or DC power to the meter while the USB port is in use.

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 for details.

PD6402 Power Connections Diagram

Signal Connections

Signal connections are made to a four-terminal connector labeled SIGNAL. The mV+ and mVterminals are used for Channel A (CH-A) as the mV input terminals for the signal generated by a current shunt. The V+ and V- terminals are used for Channel V (CH-V) as the voltage input terminals.

In addition to the signal connections, the switch labeled TYPE must be set to AC (alternating current) or DC (direct current) to accept the corresponding type of voltage and current signals.

Voltage Input

The following figures show examples of connecting the meter for a voltage input. Note that in addition to the connections, the AC/DC type switch much also be set.

PD6402 AC Voltage Input Connection
AC Voltage Input Connections
PD6402 DC Voltage Input Connection
DC Voltage Input Connections

mV to Current Input

The following figures show examples of connecting the meter for a mV input to be displayed as current (A). Note that in addition to the connections, the AC/DC type switch much also be set.

PD6402 AC Voltage Input Connection
DC Current Shunt Connections
PD6402 DC Voltage Input Connection
mV DC Connections

mV and High Voltage Input

The following figures show examples of connecting the meter for both mV and voltage input. Note that in addition to the connections, the AC/DC type switch much also be set.

PD6402 mV and High Voltage Connections
mV and High Voltage Connections
PD6402 DC Current Shunt and Voltage
DC Current Shunt and Voltage Connections
PD6402 DC mV and High Voltage Connections
DC mV and High Voltage Connections

Choose Your Options

Configurations other than those specified above are available at a $250 adder. Consult factory for desired model number and price.