Subsystem Checkout; Ac Mains Configuration - Teledyne T400 User Manual

• Assuming that the I
Board, the FET Driver on the Relay Board (see Section Error! Reference source not
found.) may have failed.
• Using the O3_GEN_HEATER parameter under the SIGNAL I/O function of the DIAG
• Check the DC voltage present between pins 1 and 2 on J14 of the Relay Board.
• If the FET Driver has failed, there should be no change in the voltage across pins 1
If the FET Driver checks out OK, the thermistor temperature sensor in the lamp assembly
•
may have failed.
• Unplug the connector to the Ozone Generator Heater/Thermistor PCB, and measure
5.7.9 S
UBSYSTEM
The preceding content discussed a variety of methods for identifying possible sources of
failures or performance problems within the analyzer. In most cases this included a list
of possible causes. If the problem is not resolved at this point, the next step is to check
the subsystems. This Section describes how to determine whether an individual
component or subsystem is the cause of the problem being investigated.
5.7.9.1

AC MAINS CONFIGURATION

The T400 analyzer's electronic systems will operate with any of the specified power
regimes. As long as system is connected to 100-120 VAC or 220-240 VAC at either 50
or 60 Hz it will turn on and after about 30 seconds show a front panel display.
• Internally, the status LEDs located on the Relay PCA, Motherboard and CPU should turn on
as soon as the power is supplied.
• If they do not, check the circuit breaker built into the ON/OFF switch on the instrument's front
panel
The analyzer is correctly configured for the AC mains voltage in use if:
The Sample Pump is running.
•
If incorrect power is suspected, check that the correct voltage and frequency is present at
the line input on the rear panel, and verify that the pump power configuration plug is
properly wired.
Note •
•
083730400A DCN8130
C bus is working and that there is no other failure with the Relay
2
menu, as described above, turn on and off the UV Lamp Heater.
and 2.
the resistance of the thermistor between pins 5 and 6.
C
HECKOUT
WARNING – ELECTRICAL SHOCK HAZARD
Should the AC power circuit breaker trip, investigate and
correct the condition causing this situation before turning
the analyzer back on.
If the unit is set for 230 VAC and is plugged into 115 VAC or 100 VAC,
the sample pump will not start, and the heaters will not come up to
temperature.
If the unit is set for 115 or 100 VAC and is plugged into a 230 VAC
circuit, the circuit breaker built into the ON/OFF Switch on the Front
Panel will trip to OFF status immediately after power is switched on.
Teledyne API – Model T400 O Analyzer
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