Teledyne 6200A - Sulfides analyzer - Manual (Page 151)

TAI Model 6200A SO
2
Analyzer Operator Manual, 02164, Rev. G
Table 9-1: Test Functions (Continued)
Test Function Factory Set-Up Comment
RCELL
TEMP 50 ± 1 o C The reaction cell temperature is controlled to 50 o C ± 1 o 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
o C and greater than 55 o C.
BOX TEMP 8 - 48 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
o C
ambient. Therefore the box temperature should be in the range
of about 10 to 50
o C. Temperatures outside this range will cause
premature failures of components, and poor data quality.
Warning limits are < 8
o C and > 52 o C.
PMT TEMP 7 ± 1 o C The PMT detector is very temperature sensitive. The PMT
temperature should always be 7
o C, except at power-up.
Temperatures more than ±1 o C from the set point indicate
problems with the cooler circuit. See Section 9.3.9 for PMT
cooler diagnostic and troubleshooting. Warning limits are
< 0
o C and > 15 o C.
IZS TEMP 50 ± 0.3 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
o C increments. This adjustment allows small
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 C. Warning limits are
< 45 o C and > 55 o 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.
9-8