ABB NGC8200 User Manual page 38

Materials:
 Calibration blend regulator assembly with low pressure switch (see
 Installed calibration gas cylinder
To install the calibration gas regulator:
1. Remove the protective cap from the high-pressure inlet, if required.
2. Insert the ferrule on the regulator high-pressure inlet into the calibration gas cylinder outlet.
3. Screw the nut onto the thread and tighten.
4. Check for leaks.
DANGER – Serious damage to health / risk to life. Do not connect the low-pressure
switch directly to the analyzer without a customer-supplied intrinsically safe barrier. It must
meet all national regulations for classified hazardous atmospheres.
5. Using a small flat head screwdriver, loosen DI2 pins 3 and 4.
6. Insert the red wire into the (+) terminal (pin 3).
7. Retighten pin 3.
8. Insert the black wire into the (-) terminal (pin 4).
9. Retighten pin 4.
10. Replace the termination connector in the J2 board connector.
Figure 4-19: Calibration gas pressure regulator with relief valve
Figure 4-20: Calibration blend low pressure switch wiring instruction (using DI2)
3 8 | N G C8 20 0 A N D PG C 10 0 0 US ER MA N UA L | 21 01 51 0MNA H
Figure 4-19)