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a WASH IN PROCESS signal via a contact closure from one
of the assigned relays to start the sequence for supplying
sample to the analyzer.
Figure 14 shows a typical setup where the WASH IN
PROCESS from the analyzer is used to signal the sample
conditioner to start the process of feeding fresh sample for
analysis.
The following example assigns Alarm 2 to WASH IN
PROCESS and MAP it to relay# 2.
Alarms
A2: WASH IN PROCESS
Main Terminal Strip
Relay #2 assigned to WASH IN PROCESS
Pin 26
Pin 27
Pin 28
INSTALL HEIGHT TO
OPERATOR EYE LEVEL
FLOW DIRECTION
FILTERED AND OIL FREE
AIR PURGE SUPPLY LINE
FLOW DIRECTION
CONNECT TO
ATMOSPHERIC DRAIN
Figure 14. Using WASH IN PROCESS signal from the 2210AM with an external sample conditioner system.
Orion 2210AM Ammonia Analyzer
Relay
Relay Mode
mapping
of operation
R2:
A2
Normal
NC
Normally Closed
NO
Normal Open
C
Normal
DRAIN
SAMPLE (INLET)
USER TO INSTALL A 40 to 60 MICRON
FILTER, SIZE IS BASED ON SAMPLE
CONDITION, SET FLOW RATE
BETWEEN : 50 TO 500 ML/MIN
POWER CIRCUIT BREAKER
AC MAINS
MUST BE CLEARLY IDENTIFIED
1
AC POWER
110-220
VAC
50-60
0
HZ
WASH IN PROCESS SIGNAL
FROM ANALYZER ASSIGNED
RELAY (NO OR NC)
SHUT-OFF
VALVE
SAMPLE IN
SAMPLE CONDITIONER
SAMPLE RETURN
PROCESS LINE
SYSTEM
Addendum
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53
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