Precision Digital PD765 Trident: Universal Process & Temp Meter

Display

Trident: 0.56” (14.2 mm) red LED
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 / Underrange

Display flashes 9999 / 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.

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
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.

Isolation

4 kV input/output-to-power line; 500 V input-to-output or output-to-24 VDC supplies.
(-6R5 & -6X5 skus only: 100 V output-to-24 VDC supply)

Operating / Storage Temp

-40 to 65°C / -40 to 85°C

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

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 (User programmable range)

Input Impedance

Voltage range: > 1 MΩ
Current Range: 50-100 Ω (varies with resettable fuse)

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)

Process Input Temperature Drift

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

Offset Adjustment

Programmable to ±19.9°

Relays

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

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 (non-latching)
3. Manual reset only (latching)
4. Manual reset only after alarm clears (latching)

Time Delay

0 to 199 seconds, on and off delays; programmable

Fail-Safe Operation

Programmable. Relay coils are energized in non-alarm condition. In case of power failure, relays will go to alarm state.

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 (Temp Drift: 50 PPM/°C)

Isolation

500 V input-to-output or output-to-24 VDC supplies; 4 kV output-to-power line

Output Loop Resistance

Serial Communications

Compatibility

EIA-232, EIA-422, and EIA-485 with PDA7232 and PDA7422 Trident adapters.

Protocol

Selectable: PDC protocol (for MeterView) and Modbus RTU

Meter Address

PDC protocol: 0 to 99
Modbus protocol: 1 to 247

Baud Rate

300 to 19,200 bps

Parity (Modbus)

None (2 stop bits), even, or odd

Byte-to-Byte Timeout

0.01 to 2.54 seconds (Modbus only)

Note

Both downloadable protocol register tables can be found in the documentation list below.

Pump Alternation

Mounting Dimensions

Notes:

1. Panel cutout required: 1.772″ x 3.622″ (45 x 92 mm)
2. Panel thickness: 0.040″ – 0.250″ (1.0 – 6.4 mm)
3. Mounting brackets lock in place for easy mounting

MeterView® for Trident

MeterView software allows remote programming and data acquisition of the Trident series. The remote programming allows for all available meter settings to be programmed from a personal computer through an easy user-friendly interface. The data acquisition allows the user to gather readings from up to 100 meters at user-selected intervals and generate charts using common tools like Microsoft® Excel.

Digital Panel Meters make a great front end to a PC-based data acquisition system. They are easy to set up, can be used for a wide range of inputs, will power the transmitter, and best of all provide a local display of the process. Precision Digital has the perfect package with its Trident Digital Panel Meters, a wide selection of serial adapters and converters and free MeterView software. Data is displayed on the PC and written to a file that could then be imported into a spreadsheet or other application.

Data Logging up to 100 Trident Meters

Sample File Generated by MeterView®

Ordering Example: System consisting of 10 Tridents & MeterView