Testing The Integral Cable; Testing Power Supply - Ametek IntelliPoint RF RMT Series Installation And Operating Instructions Manual

RMTXX1 Series - IntelliPoint RF™ Instruction Manual
5.5

Testing the Integral Cable

Figure 5-5
Testing Integral Cable
5.6

Testing Power Supply

1. Disconnect integral cable from electronic.
2. Check for continuity.
a. Using an ohmmeter measure the resistances.
i. From the center wire connection on the RCA plug
to the sensing element active section (center wire)
ii. From the shield connection on the RCA plug to the
sensing element shield.
iii. If resistance is greater than 5Ω the cable has failed.
3. Check for shorts.
a. The integral cable is tested as part of sensing element
test,
Power supply can be tested separately as follows:
A. Remove power from electronic unit.
B. Remove three screws holding circuit board into housing.
C. Disconnect sensing element connection. Refer to Figure
2-6 or 2-7.
D. Reapply power.
E. Using a DC voltmeter, measure voltage from -5 to
Common and +5 to Common. Correct readings are -5 to -6
and +5 to +6 Vdc. See Figure 5-6.
Figure 5-6
Testing Power Supply
VIEW INTO CUSTOMER
CONNECTIONS SIDE
Power Supply Voltages
Common
31
data
NC
- 5
NC
+ 5