Download EC9852 Service Manual

EC9852 SULFUR COMPOUNDS ANALYZER SERVICE MANUAL
4.2.5 Instrument Status
INSTRUMENT STATUS
GAS FLOW
GAS PRESSURE
REF. VOLTAGE
CONC. VOLTAGE
ANALOG SUPPLY
DIGITAL SUPPLY
:
:
:
:
:
:
0.375 - 0.625
690 – 760
2.3 – 2.7
0.0 - 4.2
11.6 - 12.2
4.8 - 5.2
SLPM
TORR
VOLTS
VOLTS
VOLTS
VOLTS
HIGH VOLTAGE
LAMP CURRENT
:
:
700 - 720
34 - 36
VOLTS
MA
VERSION 1.18.0012 TRS
EXIT
Figure 26. Instrument Status Ranges
If any of the parameters displayed on the INSTRUMENT STATUS screen vary
significantly from the values shown in Figure 26, the fault or operational
problem is probably related. This is also true if one of the parameters is
demonstrating a rapid change or is oscillating strongly around the desired
setpoint. For more information on the operational limits and fault
messages, refer to the table in section 4.2.7 System Faults..
Several of the parameters displayed on the INSTRUMENT STATUS screen
are affected by the potentiometer settings on the PREPROCESSOR POTS
screen. If a parameter is out of the normal operating range, make note of
the parameter value, proceed to the respective menu, and examine the
pertinent potentiometer settings.
4.2.6 System Temperatures
SYSTEM TEMPERATURES
CELL TEMP.
:
47 - 53
DEG C
CHASSIS TEMP. :
FLOW TEMP.
:
COOLER TEMP. :
25 - 35
45 – 55
10 - 14
DEG C
DEG C
DEG C
Figure 27. System Temperatures and Tolerances
The SYSTEM TEMPERATURES screen provides the temperatures of the
fluorescence cell, the chassis, and the thermoelectric cooler used to cool
the PMT. Figure 27 contains the nominal values that should be displayed
on this screen. If any of the parameters are outside the acceptable ranges, a
54
98527601 Rev. C