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Precision Digital PD765 Process & Temperature Digital Panel Meters

Process & Temperature Digital Panel Meters

Feature Rich & Simple to Use
The Model PD765 Trident digital panel meter is one of the most versatile digital panel meters on the market and will satisfy a wide variety of process applications. The Trident can be field programmed to accept process voltage (0-5V, 1-5V, etc) and current (4-20 mA) inputs, 100 Ohm RTDs, and the four most common thermocouples. It is housed in a shallow-depth, 1/8 DIN enclosure that features a NEMA 4X front panel and convenient mounting hardware. There are two power options for the Trident: 85 to 265 VAC or 12-36 VDC and it can provide 24 VDC to power the transmitter if needed. Programming and setup can be performed with the four front panel pushbuttons, free MeterView software, or using the Copy function.

Two Display Sizes
The display height on the standard Trident meter is 0.56" (14.2 mm) and on the Trident X2 the display height is an astounding 1.2" (30.5 mm). The Trident X2 can be read easily from distances of up to 30 feet! Both meters are available with all Trident features. The intensity of the display on both versions of the Trident can be adjusted to compensate for various lighting conditions, including direct sunlight.

Versatile Operation
Look to the Trident meter for the key features and options you want and don’t worry about getting bogged down in a confusing array of things you don’t need. The Trident’s Max/Min function, 2 relays, 4-20 mA output, serial communication, and Modbus RTU options provide all the utility you need to handle all the common applications.

To display the maximum and minimum readings since the last reset/power-up, use the Up arrow/Max button

Powerful Relay Functionality
All relay functions are set up from the front panel or from a PC running MeterView® or LabView™ software.
  • Automatic reset only
  • Automatic or manual reset
  • Latching or non-latching relays
  • Pump alternation control
  • On and off time delays from 0 to 199 seconds
  • Fail-safe operation is user selectable

• 4-20 ma, ± 10 V, Tc & rTD inputs
• nema 4X, iP65 Front
• shallow Depth case 3.6 Behind Panel
• universal Power supply 85-265 Vac
• Two relays option with alternation & Time Delays
• 4-20 ma analog output option
• 24 VDc @ 200 ma Transmitter Power option
• rs-232, rs-422/485 serial communication options
• modbus® RTU option & Free labVieW™ Driver
• Free meterView® software Download
• sunlight readable Display
• 3 Year Warranty

Select a link under the "item" tab below to order.

Cat #Digit SizeOptions InstalledType
PD765-6R0-00Digit SizeNone85-265 VAC Model
PD765-6R0-10Digit Size24 VDC Transmitter Supply85-265 VAC Model
PD765-6R2-00Digit Size2 Relays85-265 VAC Model
PD765-6R2-10Digit Size2 Relays & 24 VDC Transmitter Supply85-265 VAC Model
PD765-6R3-00Digit Size4-20 mA Output85-265 VAC Model
PD765-6R3-10Digit Size4-20 mA Output & 24 VDC Supply85-265 VAC Model
PD765-6R3-20Digit Size4-20 mA Out & Dual 24 VDC Supplies85-265 VAC Model
PD765-6X0-001.2 inchesNone85-265 VAC Model
PD765-6X0-101.2 inches24 VDC Transmitter Supply85-265 VAC Model
PD765-6X2-001.2 inches2 Relays85-265 VAC Model
PD765-6X2-101.2 inches2 Relays & 24 VDC Transmitter Supply85-265 VAC Model
PD765-6X3-001.2 inches4-20 mA Output85-265 VAC Model
PD765-6X3-101.2 inches4-20 mA Output & 24 VDC Supply85-265 VAC Model
PD765-6X3-201.2 inches4-20 mA Out & Dual 24 VDC Supplies85-265 VAC Model
PD765-7R0-00.56 inchesNone12-36 VDC Model
PD765-7R2-00.56 inches2 Relays12-36 VDC Model
PD765-7R3-00.56 inches4-20 mA Output12-36 VDC Model
PD765-7X0-00.56 inchesNone12-36 VDC Model
PD765-7X2-00.56 inches2 Relays12-36 VDC Model
PD765-7X3-00.56 inches4-20 mA Output12-36 VDC Model
Display: Trident: 0.56" (14.2 mm); Trident X2: 1.20" (30.5 mm) red LED, 4 digits (-1999 to 9999)
Display Intensity: Eight user selectable intensity levels
Front Panel: NEMA 4X, IP65; panel gasket provided
Programming Methods: Four front panel buttons, cloning with Copy feature, PC with MeterView or LabVIEW software, and Modbus registers. Certified LabVIEW driver available.
Noise Filter: Programmable 2 to 199 (0 will disable filter)
Display Update Rate: Process/RTD: 3.7-5/sec; TC: 1.8-2.5/sec
Overrange: Overrange: Display flashes 9999
Underrange: Display flashes -1999
Recalibration: All inputs are calibrated at the factory; recalibration is
recommended at least every 12 months.
Max/Min Display: Stored until reset by user or meter is turned off.
Password: Restricts modification of programmed settings.
Non-Volatile Memory: Settings stored for a minimum of 10 years.
Power Options: 85-265 VAC, 50/60 Hz; 90-265 VDC, 20 W max or
12-36 VDC; 12-24 VAC, 6 W max.
Required Fuse: UL Recognized, 5 A max, slow-blow; up to 6 meters
may share one fuse.
Normal Mode Rejection: 64 dB at 50/60 Hz
Isolation: 4 kV input/output-to-power line;
500 V input-to-output or output-to-24 VDC supplies
Operating Temperature: 0 to 65°C
Storage Temperature: -40 to 85°C
Relative Humidity: 0 to 90% non-condensing
Connections: Power & Signal: removable screw terminal blocks accept 12 to 22 AWG. Serial: RJ11 header, standard on all meters.
Enclosure: 1/8 DIN, high impact plastic, 94V-0, color; gray
Weight: 9.5 oz (269 g) (including options)
UL File Number: E160849; 508 Industrial Control Equipment
Warranty: 3 years parts & labor
Process Inputs
Inputs: Field selectable: 0-20 mA, 4-20 mA, 1-5 V, ±10 V
Accuracy: ±0.05% FS ±1 count; square root: ±0.1% FS ±2 counts
Function: Linear or square root
Low-Flow Cutoff: 0 to 9999 (0 disables cutoff function)
Decimal Point: Up to 3 decimals: d.ddd, dd.dd, ddd.d, or dddd
Calibration: Scale without signal or calibrate with signal source
Calibration Range: User programmable over entire range of meter
Input Impedance: Voltage range: greater than 1 MΩ, Current range: 50-100 Ω, varies with resettable fuse impedance
Input Overload: Protected by automatically resettable fuse
Temperature Drift: ±50 PPM/°C
Transmitter Supply: Isolated, one or two transmitter supplies
P1: 24 VDC ±10% @ 200 mA max (-1 option)
P1 & P2: 24 VDC ±10% @ 200 mA & 40 mA max (-2 option)
Temperature Inputs
Inputs: Factory calibrated, field selectable: type J, K, T, or E
thermocouples and 100 Ω platinum RTD (0.00385 or 0.00392 curve)
Resolution: 1°; type T: 1° or 0.1°
Cold Junction Reference: Automatic
Temperature Drift: ±2°C maximum
Offset Adjustment: Programmable to ±19.9°. This parameter allows
the user to apply an offset value to the temperature being displayed.
Input Impedance: Greater than 100 kΩ
Sensor Break: All relays and alarm status LEDs go to alarm state.
Rating: 2 Form C (SPDT); rated 3 A @ 30 VDC or 3 A @
250 VAC resistive load; 1/14 HP @ 125/250 VAC inductive loads
Deadband: 0-100% FS, user selectable
High or Low Alarm: User may program any alarm for high or low
Relay Operation: 1. Automatic (non-latching) 2. Latching 3. Pump alternation control
Relay Reset: User selectable via front panel buttons or PC
1. Automatic reset only (non-latching)
2. Automatic plus manual reset at any time (non-latching)
3. Manual reset only, at any time (latching)
4. Manual reset only after alarm condition has cleared (latching)
Automatic Reset: Relays reset when input passes the reset point
Manual Reset: Front panel button, MeterView, Modbus registers
Time Delay: 0 to 199 seconds, on and off delays; programmable
Fail-Safe Operation: Programmable, independent for each relay. Relay coils are energized in non-alarm condition. In case of power failure, relays 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 Output
Scaling Range: 1.00 to 23.00 mA; reverse scaling allowed.
Calibration: Factory calibrated 4.00 to 20.00 mA
Accuracy: ±0.1% FS ±0.004 mA
Temperature Drift: 50 PPM/°C
Note: Analog output drift is separate from input drift
Isolation: 500 V input-to-output or output-to-24 VDC supplies;
4 kV output-to-power line
External Power: 35 VDC maximum
Output Loop Resistance:   Loop Resistance
Power Supply Minimum Maximum
24 VDC 10 Ω 700 Ω
35 VDC (external) 100 Ω 1200 Ω
Serial Communications
Compatibility: EIA-232, EIA-422, and EIA-485 with PDA7232 and
PDA7422 Trident adapters.
Protocol: PDC and Modbus RTU
Meter Address: PDC protocol: 0 to 99, Modbus protocol: 1 to 247
Baud Rate: 300 to 19,200 bps
Transmit Time Delay: Programmable 0 to 199 ms or transmitter always on for RS-422 communications.
Data: 8 bit (1 start bit, 1 stop bit)
Parity: None (2 stop bits), even, or odd
(Modbus only; PDC protocol does not use parity)
Byte-to-Byte Timeout: 0.01 to 2.54 seconds (Modbus only)
Turn Around Delay: Less than 2 ms (fixed)

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