High Voltage Power Supply (Hvps) - Teledyne T200 User Manual

HIGH VOLTAGE POWER SUPPLY (HVPS)

The HVPS is located in the interior of the sensor module and is plugged into the PMT tube.
It requires two voltage inputs.
The first is +15 V, which powers the supply.
•
• The second is the programming voltage which is generated on the preamplifier board.
• Adjustment of the HVPS is covered in the factory calibration procedure in
Section 5.7.10.4.
This power supply has 10 independent power supply steps, one to each pin of the PMT.
The following test procedure below allows you to test each step.
1. Turn off the instrument.
2. Remove the cover and disconnect the two connectors at the front of the
3. Remove the end cap from the sensor (four screws).
4. Remove the HVPS/PMT assembly from the cold block inside the sensor
5. Disconnect the PMT from the HVPS.
6. Re-connect the 7-pin connector to the sensor end cap, and power-up the
7. Navigate to the HVPS parameter in the Dashboard (if not shown, configure
8. Divide the displayed HVPS voltage by 10 and test the pairs of connector
9. Check the overall voltage (should be equal to the HVPS value displayed in
EXAMPLE: if the HVPS signal is 700 V the pin-to-pin voltages should be 70 V.
10. Turn off the instrument power, and reconnect the PMT, and then
162 Teledyne API T200 NO/NO
NOx sensor module.
(two plastic screws).
instrument.
the Dashboard to display HVPS, Section 2.5.3).
points as shown in the example below.
the Dashboard and the voltages between each pair of pins of the supply).
reassemble the sensor.
If any faults are found in the test, you must obtain a new HVPS as there
•
are no user serviceable parts inside the supply.
/NO Analyzer with NumaView™ Software
2 x
083730200A DCN7962