OPTIONS
Relays
RATING:
2 or 4 SPDT (form C); rated 2 Amp @ 30 VDC or 2 Amp @ 250 VAC
resistive load; 1/14 HP @ 125 / 250 VAC for inductive loads.
RESET:
User select.
1. Automatically when the input passes the reset point.
2. Automat manually (via user supplied switch or front panel ACK button).
Manual reset resets all manually resetable relays.
FAIL-SAFE OPERATION:
The relay coils are energized in the non-alarm condition.
In the case of a power failure, the relays will go to the alarm state. Fail-safe opera-
tion by removing jumper J2 located on the Options Board.
AUTO INITIALIZATION:
When power is applied to the meter, the relays will always
reflect the state of the input to the meter.
DEADBAND:
0-100%, User selectable.
Isolated 4-20 mA Transmitter Output
CALIBRATION RANGE:
The transmitter output can be calibrated so that a 4 mA
output is produced for any number displayed on the meter. The 20 mA output may
correspond to any number displayed on the meter above or below the 4 mA output
display.
O
OU
UTTPPU
UTT LLO
OO
OPP R
REESSIISSTTA
AN
NC
CEE::
Power supply:
minimum
maximum
24 VDC
10 Ω
600 Ω
35 VDC
(external)
600 Ω
1000 Ω
ACCURACY:
± 0.1% F.S., ± .004 mA.
ISOLATION:
500 VDC or peak AC, input-to-output or input/output-to-power line.
EXTERNAL LOOP POWER SUPPLY:
35 V max.
WARRANTY:
2 years parts & labor
EXTENDED WARRANTY:
1 or 2 years, refer to the Price List for details.
5
Model PD750, PD751, PD752 Universal Temperature Meters
Instruction Manual
www.predig.com
