Precision Digital PD6800 - Manual (Page 15)

PD6800-0L1 Loop-Powered Process Meter Instruction Manual
15
Open Collector Output Connections
Output connections are made to two terminals labeled OUTPUT. Connect to an input
device such as alarm indicator as shown in Figure 6, or drive a relay as shown in
Figure 7.
WARNING
To avoid damaging the PD6800-0L1’s amplifying components, use
care not to wire incorrectly or exceed output ratings. A diode, such
as 1N4000 series, will provide protection from relay transients.
Figure 6. Connection to Device with Internal Pull-Up
Figure 7. Output Connections
SAFE-TOUCH
BUTTONS
BACKLIGHT
POWER
UNLOCK LOCK LOOP 9-36 VDC
+ - + -
SIGNAL BACKLIGHT
+ - + -
OUTPUT RESET
+
Alarm Recorder
or Annunciator
(e.g. PD8-158)
-
SAFE-TOUCH
BUTTONS
BACKLIGHT
POWER
UNLOCK LOCK LOOP 9-36 VDC
+ - + -
SIGNAL BACKLIGHT
+ - + -
OUTPUT RESET
5-30 VDC
150 mA MAX