Disassembly
Probes
Use these procedures when repairing or replacing defective components in the
current probes.
WARNING. Probe disassembly must be performed by qualified service personnel
to avoid personal injury or loss of life.
The probes that mate with the TCPA300 and TCPA400 Current Probe Amplifiers
have two physical styles. The TCP305 and TCP312 use a slender form factor that
contain th
ree replaceable assemblies — the connector/cable, the circuit board,
and the current transformer.
The TCP30
3 and TCP404XL use a pistol-style case with an integral hand grip.
These probes contain two replaceable assemblies — the connector/cable/circuit
board assembly and the current transformer. Both probes use a few mechanical
components that are replaceable, such as springs and plastic parts.
Equipment Required
Listed is the required equipment to service the probes.
Table 35: Equipment required
Qty Desc
ription
1
#2 Ph
illips screwdriver
1 Isopropyl alcohol
1
Silicone-based grease
1 25 W soldering iron
72 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual