Panametrics TMO2D, User Manual, Page: 20 / 101

Chapter 2. Installation
12 TMO2D User’s Manual
Figure 7: TMO2-TC Wiring Connections
2.3.4 XMTC Transmitter
Connecting the XMTC thermal conductivity transmitter to the TMO2D requires use of the X4(*) or Y4(*) cables. The
X4(*) cable can be used for distances up to 450 ft (130 m). For longer distances, each cable can be supplied as
18-AWG that can be located up to 1,050 ft (320 m). If you are using your own cable, refer to Table 7 below for cable
requirements.
For longer cable lengths, consult the factory.
2.3.4.1 Wiring:
Use the following steps to interconnect the XMTC to the TMO2D.
1. Route the cable into the XMTC transmitter through one of the 3/4" conduit holes on the side of the transmitter.
WARNING!
Be sure to plug the unused conduit/cable entry hole on the transmitter, in order to meet
specifications and to maintain the appropriate weatherproof or explosion-proof rating.
2. Unplug TB1 on the XMTC transmitter PC board (PCB) by carefully pulling it directly up without bending the pins
attached to the PCB. See Figure 8 below.
Table 7: Cable Requirements for XMTC
MAX. CABLE LENGTH CABLE SIZE
Feet Meters AWG Sq. mm
450 130 22 0.35
700 200 20 0.6
1,050 320 18 1.0
1,700 500 16 1.2
2,800 850 14 2.0
4,000 1,200 12 3.0
2
3
4
1
+24 V/1 AMP 1
Return 2
Oxygen 3
None 4
Red
Black
White
Connect Shield