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Teledyne API - Model 200EH/EM Operation Manual Operating Instructions
139
6.14. SETUP – ALRM: USING THE OPTIONAL GAS
CONCENTRATION ALARMS (OPT 67)
The optional alarm relay outputs (Option 67) are installed includes two concentration alarms Each alarm has a
user settable limit, and is associated with an opto-isolated TTL relay accessible via the status output connector
on the instrument’s back panel (see Section 6.15.1.1). If the concentration measured by the instrument rises
above that limit, the alarm‘s status output relay is closed NO
2
.
The default settings for
ALM1 and ALM2 are:
Table 6-28: Concentration Alarm Default Settings
ALARM STATUS
LIMIT SET POINT
1
OUTPUT RELAY
DESIGNATION
ALM1
Disabled 100 ppm 133.9 mg/m
3
AL2
ALM2
Disabled 300 ppm 401.6 mg/m
3
AL3
1
Set points listed are for PPM. Should the reporting range units of measure be changed (see Section 6.13.4.5) the
analyzer will automatically scale the set points to match the new range unit setting.
NOTE
To prevent the concentration alarms from activating during span calibration operations
make sure to press CAL or CALS button prior to introducing span gas into the analyzer.
To enable either of the concentration alarms and set the Limit points, press:
ENTR key accepts the
new settings
EXIT key ignores the new
settings
SETUP X.
A
LARM 1 LIMIT: 200,00 PPM
0 1 0 0 .0 0 ENTR EXIT
SETUP X.X
A
LARM MENU
ALM1 ALM2 EXIT
SETUP X.
A
LARM 1 LIMIT: OFF
OFF ENTR EXIT
SETUP X.X
PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SAMPLE A1:NXCNC1=100PPM NOX=XXX.X
< TST TST > CAL SETUP
Toggle these keys to
cycle through the
available character set:
0-9
SETUP X.
A
LARM 1 LIMIT: ON
ON ENTR EXIT
04521C (DCN5731)