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Teledyne API Model 100AH SO
2
Analyzer Instruction Manual, 02417, Rev. D
Table 10-1: Test Functions (Continued)
Test Function Factory Set-Up Comment
DCPS
2500
±
200 mV DCPS is a composite of the +5 and
±
15 VDC supplies. It has
been arbitrarily set at 2500
±
200 mV. If it is not in this range
one of the voltages in the supply is not working. Check the
procedures for diagnosing the Power Supply Module.
RCELL TEMP
50.0
±
1
°
C The reaction cell temperature is controlled to 50
°
C
±
1
°
C by
the computer. It should only read other values when the
instrument is warming up. If the value is outside the
acceptable range, go to the procedure for diagnosing the
Reaction cell temp supply. The alarm limits are less than 45
°
C
and greater than 55
°
C.
BOX TEMP
8 - 48
°
C
The Box Temp is read from a thermistor on the Status/Temp
board (01086). It should usually read about 5
°
C above room
temp. The M100AH is designed to operate from 5 to 40
°
C
ambient. Therefore the box temperature should be in the range
of about 10 to 50
°
C. Temperatures outside this range will
cause premature failures of components, and poor data
quality. Warning limits are < 8
°
C and > 52
°
C.
PMT TEMP
7.0
±
1
°
C
The PMT detector is very temperature sensitive. The PMT
temperature should always be near 7
°
C, except at power-up.
Temperatures more than
±
1
°
C from the set point indicate
problems with the cooler circuit. See Section 10.3.9 for PMT
cooler diagnostic and troubleshooting. Warning limits are <
2
°
C and > 12
°
C.
TIME This is the time of day clock readout. It is used to time the
AutoCal cycles. The speed of the clock can be adjusted by the
CLOCK_ADJ variable in the VARS menu. The clock can be
set via SETUP-CLOCK-TIME from the front panel.
10-8