Endress+Hauser SS500 - Page 16

SS2100 TDLAS H
2
S Gas Analyzer BA02191C
1-12 Endress+Hauser
Figure 1–7 H
2
S analyzer electronics control board
(DC) showing signal terminal block and alarm relays
FUSE (F1)
RELAY DRIVER AND 4-20 mA
CONTROL BOARD STACK
FUSE (F2)
TERMINAL BLOCK TB2,
OUTPUT SIGNALS
NOTE: Refer to “Spare Parts” on page A-12 for part numbers.
COMMON
NO
NC
ASSIGNABLE ALARM
GENERAL FAULT
ALARM
CUSTOMER
GROUND
POWER
SUPPLY
BACKPLANE
ARM9 CONTROL
BOARD STACK
COMPONENT
GROUND
HYTEK
TEMPERATURE
CONTOLLER
TERMINAL BLOCK (TB3),
INTERNAL PRESSURE/
TEMPERATURE
ALARM/
SIGNAL
RELAYS
PROTECTIVE
GROUND