Brooks Instrument BM50 - Manual (Page 50)

4-2
Section 4 Maintenance Installation and Operation Manual
X-PD-BM-Ovals-eng
Part Number: 541B031AAG
January, 2009
BM Oval Series
4-3 Disassembly - General
Before proceeding with any disassembly, follow these steps:
1. Close all valves and isolate the meter from line pressure or back
pressure.
2. If used at elevated temperatures, reduce temperature of meter
(including internals) to ambient.
3. Disconnect any electrical lines to or from the meter.
3a. Units with Pulse Caps: undo the conduit connector, remove pulse cap
(item 9) and remove the wires from the pulse terminal board
(item 5). (Refer to Figure 5-1).
3b. Standard LC Displays: Mark the display orientation with a marking
pen, unscrew the four large screws (item 30) on top of LC Display.
Carefully separate LC Display from the plastic housing and disconnect
the wires from the pulse block terminal (Refer to Figure 5-3).
3c. Deluxe LC Display: Mark the display orientation with a marking pen,