Precision Digital PD6830 - Manual (Page 13)

PD6830 Pulse Input Rate/Totalizer Instruction Manual
13
4-20 mA Transmitter Output
OUTPUT SOURCE
Rate/process, total, grand total, or disabled
SCALING RANGE
4.000 to 20.000 mA for any display range.
DISABLE
If disabled, the output will output 3.2 mA
CALIBRATION
Factory Calibrated: 0.0 to 1000.0 = 4-20 mA output
UNDERRANGE
Output Underrange: 3.8 mA
OVERRANGE
Display Overrange: 20.5 mA
Output Overrange: 20.5 mA
ACCURACY
± 0.05% span ± 0.004 mA
TEMPERATURE
DRIFT 0.08 µA/ C max from -40 to 75C ambient,
EXTERNAL LOOP
POWER SUPPLY
30 VDC maximum
OUTPUT LOOP RE-
SISTANCE Power supply Minimum Maximum
24 VDC 10  750 
30 VDC 100  1100 
Note: loop-powered backlight subtracts 150

from maxi-
mum resistance figures above.
Open Collector Outputs
OUTPUT
ASSIGNMENT
Two open collector pulse outputs Out 1 and Out 2.
Individually programmable for rate, total, or grand total alarms;
rate, total, or grand total pulse outputs; or retransmitting of
pulse inputs; constant timed pulse output; quadrature outputs
(requires Out 1 and Out 2); or off.
RATING
Isolated open collector, off: 24 VDC max, on: <1 V @ 150 mA
max
ALARM OUTPUT
Assign to rate for high or low alarm trip point.
Assign to total or grand total for total or grand total alarms.
ALARM
DEADBAND
0-100% FS, user selectable
ALARM
ACKNOWLEDGE
Front panel ENTER button resets output and screen indication.