Trident Model PD765 Universal Input Meter Instruction Manual
11
Isolated 4-20 mA Transmitter Output
OUTPUT RANGE
1.00 to 23.00 mA typical
CALIBRATION
Factory calibrated for 4-20 mA
SCALING RANGE
0.00 to 23.99 mA for any display range,
see output range above
ACCURACY
± 0.1% FS ± 0.004 mA
TEMPERATURE
DRIFT
0.4 uA/
°
C from -40 to 65
°
C ambient
Note: Analog output drift is separate from input drift.
ISOLATED
TRANSMITTER
POWER SUPPLY
One or two transmitter power supplies (Optional)
P1: 24 VDC
±
10% @ 200 mA max. (-1 option)
P1 & P2: 24 VDC
±
10% @ 200 mA & 40 mA max. (-2 option)
EXTERNAL LOOP
POWER SUPPLY
35 VDC maximum
OUTPUT LOOP
RESISTANCE
Power supply
Minimum
Maximum
24 VDC
10
Ω
700
Ω
35 VDC (external)
100
Ω
1200
Ω
Serial Communications
METER
ADDRESS
PDC protocol: 0 - 99
Modbus protocol: 1 - 247
BAUD RATE
300 – 19,200 bps
TRANSMIT
TIME DELAY
Programmable between 0 and 199 ms
DATA
8 bit (1 start bit, 1 stop bit)
PARITY
None (1 or 2 stop bits), even, or odd
(Modbus only; PDC protocol does not use parity)
BYTE-TO-BYTE
TIMEOUT
0.01 – 2.54 sec (Modbus only)
TURN AROUND
DELAY
Less than 2 ms (fixed)
Refer to PDC and Modbus Serial Communication Protocol manuals for
details. These can be downloaded from: www.predig.com.
www.
GlobalTestSupply
.com
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