Teledyne 3010MA - Paramagnetic oxygen analyzer, includes 0-100% range - Manual (Page 28)

Part 1 Control Unit Model 3010MA
28 Teledyne Analytical Instruments
3.3 Rear Panel Connections—Control Unit
Figure 3-4 shows the Model 3010MA rear panel. On this panel are
connectors for interfacing with the Analysis Unit, RS-232 communication,
power cord, line voltage switch, input/output connections via the 50-pin
equipment interface connector and a gas inlet port for the pressure
compensation circuit.
Figure 3-4: Rear Panel of the Model 3010MA Control Unit
3.3.1 Gas Connections—Control Unit
The only gas connection made to the Control Unit is the pressure
compensation line extending between the Analysis unit and the Control
Unit. A 1/8 inch tube fitting is installed on the rear panel for this purpose.
To connect the pressure compensation line:
1. Insert the 1/8 inch tube into the fitting and finger-tighten the
nut where the tube cannot be rotated freely. Tighten the nut an
additional 1/8 turn beyond finger-tight.
2. Use a wrench to hold the fitting body and keep it from turning
while you tighten the nut using another wrench When
assembling new fittings for the first time: Tighten the nut 1 ¼
turns.