2101510MNA H | NGC820 0 AN D PGC 1000 US ER MA NUA L |
37
Carrier regulator assembly with low pressure switch (see
)
Installed carrier gas cylinder
To install the carrier 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 carrier gas cylinder outlet.
3.
Screw the nut onto the thread and tighten.
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.
4.
Remove the J2 field wiring connector from the termination panel located inside the rear of the
enclosure.
Figure 4-17: Carrier gas pressure regulator with relief valve
5.
Using a small flat head screwdriver, loosen DI1 pins 1 and 2.
6.
Insert the red wire into the (+) terminal (pin 1).
7.
Retighten pin 1.
8.
Insert the black wire into the (-) terminal (pin 2).
9.
Retighten pin 2.
Figure 4-18: Carrier gas low pressure switch wiring (using DI1)
10. Proceed to wire for the calibration gas system in the next procedure.
4.5.4
Calibration gas regulator installation
The following instructions are valid for all installations. These instructions assume that the carrier gas
cylinder has been installed. This example uses the DI2 for wiring the calibration gas system.
