MNA0010, Revision B October 2014
36
CHAPTER 5
Optional Alarm Outputs
The Model 7100P Portable analyzer can be purchased with three optional alarms outputs:
1. Alarm 1, settable for concentration of oxygen (1 Form C relay contacts SPDT can be
configured for fail safe or non-fail safe / ascending or descending trip. See section 3.3)
2. Alarm 2, settable for concentration of oxygen (1 Form C relay contacts SPDT can be
configured for fail safe or non-fail safe / ascending or descending trip. See section 3.3)
3. FAULT Alarm , factory set to alarm when a fault is detected (see section 3.4). The fault
alarm relay contacts are 1 Form B SPST and is always configured fail-safe.
Connection to the optional outputs are made at the terminal blocks on the rear of the analyzer
chassis. The terminal blocks are removable for easy installation of the wires. Be certain to match the
terminal pins against the terminal ID label on the top of the analyzer chassis.
1
2
3
N/C
TB2
4
5
6
7
8
9
10
11
12
13
14
Fault
C NC
Alarm 1
C
NC NO
Alarm 2
C
NC NO
+
-
N/C
