PD6600 Series Loop-Powered Process Meters
Instruction Manual
12
Common Open Collector &
Relay (Alarm) Specifications
Number
Two open collectors & two relays
High or Low
Alarm
User programmable for high or low alarm
Alarm Deadband
0-100% FS, user programmable
Output
Assignment
Pulse, Alarm, Timer, Stopwatch, or
Disable
Alarm Output
Source
Assign to PV (PV1, PV2) or Digital Input
On & Off Time
Delay
0 to 9,999 seconds
Fail-Safe
Operation
Independent for each open collector
and relay.
Fail-safe on, the output is on under
normal conditions.
Fail-safe off, the output is on under
alarm conditions.
Alarm Operation
Automatic, automatic with manual
override, latching (manual reset
anytime), latching with reset after
cleared (manual reset only after alarm
has cleared)
Alarm Indication
Programmable: red backlight, flashing
display, alarm symbol (!); (symbols not
available on bargraph models). Bargraph
segment flashes on alarm.
Alarm Message
Programmable: 8 characters maximum;
displayed every 10 sec for 1 sec on
bottom display. May be turned off.
Alarm
Acknowledge
Front panel ACK button or external
digital input resets output and screen
indication.
Auto Initialization
When power is applied to the meter,
open collectors and relays will reflect
the state of the input to the meter.
Timer Output
One-shot or Continuous
Off Time Delay: 1 sec to 99:59:59
(hrs:min:sec)
On Time: 1 sec to 99:59:59 (hrs:min:sec)
Stopwatch
Output turns on when started and off
when stopped.
Open Collector Outputs
Rating
Isolated open collector, sinking NPN
5-30 VDC @ 150 mA maximum
Output
Assignment
Pulse, Alarm, Timer, Stopwatch, or
Disable
Pulse Output
Source
PV (PV1, PV2) or Test Frequency
Pulse Output
Factor
0.000001 to 999,999.9
Pulse Width
0.5 ms @ 1 kHz; 500 ms @ 1 Hz;
50% duty cycle
Pulse Output
Frequency
1,000 Hz maximum
Quadrature Pulse
Output
Available for Output 2
(90° behind Output 1) 500 Hz max
Alarm Output
Source
Assign to PV (PV1, PV2)
or Digital Input
Solid State Relays
Rating
250 VAC/VDC @ 1 A resistive
75 VA; 250 VAC; 0.6 A pilot duty
(inductive)
– UL Code D300
25 VA; 250 VDC; 0.6 A pilot duty
(inductive)
– UL Code R300
Noise
Suppression
Metal oxide varistors across outputs
Relay
Assignment
Pump Alternation, Alarm, Timer,
Stopwatch on/off, or Disable
Alarm Output
Source
Assign to PV (PV1, PV2) or Digital Input
Pump Alternation
Relays may be programmed to alternate
with each pump cycle with an elapsed
time override where the pumps will
alternate regardless of level. Pump
alternation time can be programmed for
0 to 999:59 (hrs:min)
Relay (Pump)
Runtime
Meter will keep track of how long each
relay (pump) has operated and display
this information.
Relay (Pump)
Cycles
Meter will keep track of how many times
the relays (pumps) have cycled and
display this information.
4-20 mA Transmitter Output
Accuracy
±
0.05% FS
±
0.001mA
Output Source
PV1, PV2, re-transmit;
reverse scaling
allowed
Scaling Range
1.00 to 23.0 mA
Disable
High impedance state, less than 1 mA
Calibration
Factory calibrated 4.00 to 20.00 mA
Underrange
1.0 mA, 3.5 mA, or 3.8 mA
(If input < 3.5 mA); or disable
underrange; user selectable
Overrange
20.5 mA, 20.8 mA, or 23.0 mA
(If input > 20.5 mA); or disable
overrange; user selectable
Isolation
500 V input-to-output
Temperature Drift
0.5 µA/°C max from -40 to 75°C ambient
External Loop
Power Supply
7.0 VDC to 30.0 VDC maximum
Output Loop
Resistance
10-
750 Ω @ 24 VDC; 10-1100 Ω @ 30 VDC
On-Board Digital Input
Function
Remote operation of front-panel buttons,
acknowledge/reset relays, reset max/min
values, etc. See User section of
on page
for a
complete list of capabilities.
Contacts
2.1 VDC on contact. Connect normally
open contacts across DI+ and DI-
Logic Levels
Logic High: 2.4 to 30 VDC (max)
Logic Low: 0 to 0.9 VDC
