Ametek TM2000 Pro, User Manual, Page: 43 / 148

Installation and Start-Up | 3-21
Remote Calibration Unit Connections
Series 2000
Wiring Card Connections
Description Wire Color RCU Connections
Aspirator Sample gas Red 15
Zero Zero Cal Gas Green 13
Span Span Cal Gas White 14
Valve Common
(2 pin locations)
Solenoid Common
Wires
Black 17
Remote Calibration Unit (RCU) wiring connections between the Series 2000
control unit wiring card and the RCU are as shown in Figure 3-22 and Figure
3-23.
Digital input to initiate remote calibration unit
For this option to work, you must have a re-
mote calibration unit and an auto calibration
card.
The digital input connections on the wir -
ing card allow you to initiate a remote calibra-
tion or verification from a location other than
the control unit (see Figure 3-24). The system
monitors the digital input, and when the switch
closes, it sends the system into an automatic
calibration or verification. The switch you
connect to this digital input must be a normally
open switch.
Digital input connections are labeled as follows
on the wiring card
DIGIN +
DIGIN -
Figure 3-23.
RCU connections
table.
Twisted pair w/overall braided
shield or placed in separate,
rigid conduit
Remote cal switch;
normally open
(dry contact closure)
All common wires
to pin 17 on RCU and
valve commons
on control unit
Figure 3-24.
Controller RCU
connections.