February 2009
5-2
Parts Replacement
Replacing the Fuse
If it has been determined that the fuse in the CTF878 requires
replacement, complete the following steps:
!WARNING!
The main power to the CTF878 must be disconnected
before proceeding.
1.
Open the cover on the electronics console. Remove the two
mounting screws and lift the clear plastic shroud out of the
electronics console.
2.
Locate the black plastic fuse holder that is mounted on the printed
circuit board between the power terminal block
TB1
and the
RS232
terminal block. As shown in Figure 5-1 on page 5-9, the
fuse holder extends below the main aluminum shroud, and the
fuse holder cap is located on the bottom of the fuse holder.
3.
Using a small standard screwdriver, turn the fuse holder cap
counterclockwise about 1/4 turn. The fuse holder cap, with the
captive fuse, will be ejected from the fuse holder.
4.
Replace the defective fuse with a new one of the same rating and
type. Use only 1-1/4” x 1/4” Slo-Blo fuses, having a rating as
indicated in Table 5-1 below and on the wiring diagram label.
5.
Press the new fuse into the fuse holder cap and insert the fuse into
the fuse holder. While applying a slight pressure with the
screwdriver, twist the fuse holder cap 1/4” turn clockwise.
6.
Place the clear plastic shroud over the standoffs in the electronics
console and secure it in place with its two mounting screws. Close
the cover on the electronics console.
The CTF878 flowmeter may now be placed back into service.
Reconnect the main power and resume taking measurements.
Note:
Be sure to record the fuse replacement in Appendix A,
Service
Record
.
Table 5-1: Line Voltage & Fuse Rating
Line Voltage
Fuse Rating
85-264 VAC
1.0 A, Slo-Blo
Содержание CTF878
Страница 1: ...GE Sensing Model CTF878 Clamp On Tag Flowmeter User s Service Manual ...
Страница 2: ...GE Sensing Model CTF878 Clamp On Tag Flowmeter User s Service Manual 910 254SA4 February 2009 ...
Страница 6: ...Chapter 1 ...
Страница 18: ...Chapter 2 ...
Страница 30: ...Chapter 3 ...
Страница 43: ...Chapter 4 ...
Страница 51: ...Chapter 5 ...
Страница 63: ...Appendix A ...
Страница 64: ...Service Record Introduction A 1 Data Entry A 1 ...
Страница 66: ...February 2009 A 2 Service Record Table A 1 Service Record Continued Date Description of Service Performed By ...