Tektronix TCPA300 SERIES, Instruction Manual

Page: 69 / 205

Troubleshooting and Error Codes
TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Instruction Manual
3- 23
Four--bit error code
is displayed here
MSB
LSB
= binary 0010 = code 2 =
a null error in the DC offset occurred
=
Figure 3- 16: Interpreting the error code display
Table 3--4 shows the complete list of error codes for the amplifier.
Table 3- 4: Amplifier error codes
Code Description of error Action to take
1 The amplifier detected a probe, but a
valid Hall device was not detected. Disconnect and reattach the probe to the amplifier.
Power cycle the amplifier.
Check probe transformer (defective Hall device).
If these steps do not resolve the error, the amplifier needs service.
May also be caused by a shorted or open wire in the probe cable assembly.
2 An error occurred while nulling out
the internal DC offset of the amplifi Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If the error reoccurs then the amplifier needs service
3
the internal DC offset of the amplifi-
er. If the error reoccurs, then the amplifier needs service.
4 TCPA300 ONLY -- An error occurred
while the the amplifier was adjusting
the power supply levels for the Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If the error reoccurs, then perform the following steps:
1) Remove the probe from the circuit.
5
the power supply levels for the
different Range settings. 1) Remove the probe from the circuit.
2) Check probe -- The signal path through the probe transformer may be open or
shorted, which can be caused by defective probe transformer or cable assembly.
If the above steps do not resolve the error, the amplifier needs service.
6 An error occurred while the amplifier
was adjusting the Overload trip Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If the error reoccurs then remove the probe from the circuit
7
was adjusting the Overload trip
points. If the error reoccurs, then remove the probe from the circuit.
If this does not resolve the error, the amplifier needs service.
8 Unused 8
9 Unused
10 An error occurred while nulling out
the internal DC offset of the amplifi Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If the error reoccurs then remove the probe from the circuit
11
the internal DC offset of the amplifi-
er. If the error reoccurs, then remove the probe from the circuit.
If this does not resolve the error, the amplifier needs service.
12
13
The amplifier cannot null out the
probe DC offset voltage. Remove the probe from the circuit. Error 12 will most likely occur when the probe is
connected to an energized circuit when a Degauss/Autobalance routine is initiated.
Check probe transformer (defective Hall device)
13
14
Check probe transformer (defective Hall device).
This error may also be caused by a Hall device with excessive noise or drift in the
probe transformer or a shorted or open wire in the probe cable assembly
probe transformer, or a shorted or open wire in the probe cable assembly.
Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If these steps do not resolve the error, the amplifier needs service.
15 Unspecified error (internal software
error) Power cycle the amplifier and run the Degauss/Autobalance adjustment routine again.
If the error reoccurs, then the amplifier needs service.