Teledyne 6200A Manual page 151

TAI Model 6200A SO
Table 9-1: Test Functions (Continued)
Test Function Factory Set-Up
RCELL 50 ± 1
TEMP
BOX TEMP 8 - 48
PMT TEMP 7 ± 1
IZS TEMP 50 ± 0.3
TIME
Analyzer Operator Manual, 02164, Rev. G
2
Comment
o
C The reaction cell temperature is controlled to 50
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
o
C The Box Temp is read from a thermistor on the Status/Temp
board (01086). It should usually read about 5C above room
temp. The 6200A is designed to operate from 5 to 40
ambient. Therefore the box temperature should be in the range
of about 10 to 50
premature failures of components, and poor data quality.
Warning limits are < 8
o
C The PMT detector is very temperature sensitive. The PMT
temperature should always be 7
Temperatures more than ±1
problems with the cooler circuit. See Section 9.3.9 for PMT
cooler diagnostic and troubleshooting. Warning limits are
o
< 0 C and > 15
o
C The IZS temperature is the temperature of the permeation tube
oven. This temperature is controlled by the CPU and is
adjustable in 0.1
changes in permeation tube temperature so the permeation rate
can be adjusted to the desired value. The control loop variations
show a temperature swing at the control thermistor of a few
tenths of a degree. Temperature fluctuations of the perm tube
however are less than .1
o
< 45 C and > 55
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.
9-8
o
C and greater than 55
o
C. Temperatures outside this range will cause
o o
C and > 52 C.
o
C, except at power-up.
o
C from the set point indicate
o
C.
o
C increments. This adjustment allows small
o
C. Warning limits are
o
C.
o o
C ± 1 C by the
o
C.
o
C