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MBZ-00001-01
4
Functional Testing
The following test procedures will confirm that the T809-10 has been set up and
adjusted correctly and is fully operational. For the test equipment refer to the diagram
below:
Isolating
Earth leakage
transformer
Circuit breaker
1kVA
Mains supply
4.1
Basic Operation
To confirm the basic operation of the power supply:
1 Ensure that the mains supply to the T809-10 is switched OFF.
2 Set up the test equipment as shown in
3 Set the DC output load to maximum resistance/minimum current.
4 Connect the T809-10 to the mains supply and switch it on. The power switch
and the ON LED should be illuminated.
5 Vary the DC load and check that the output voltage and current are within
the specifications (refer to Section 1.2.4).
4.2
Output Current Overload
To confirm the operation of the current overload protection circuitry:
1 Ensure that the mains supply to the T809-10 is switched OFF.
2 Set up the test equipment as shown in
Copyright © 2004 Tait Electronics Ltd
Variac
0 to 260V
AC
1kVA
AC
Input
_ *
_
V
A
Figure 4.1 Test equipment setup
Figure 4.1
Figure 4.1
Functional Testing
Oscilloscope
+
Output
-
T809 PSU
above.
above.
33
Variable
DC load
V
_
A
_
November 2004
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