Brooks Instrument 3750 - Manual (Page 6)

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Installation and Operation Manual
X-VA-MT3750C-eng
Part Number: 541B063AAG
April, 2014
Brooks ® Ar-Mite TM MT3750C
Contents
Figures
Figure Page
Number Number
1-1 Model MT3750C with Transmitter / Inductive Alarm .......................................................................... 1-5
1-2 Reed Switch Wiring Diagram ............................................................................................................ 1-6
1-3 Model MT3750C with Reed Switch Alarm ......................................................................................... 1-7
1-4 Power Supply vs. Maximum Load Resistance ................................................................................. 1-10
1-5 Transmitter Wiring Diagram ............................................................................................................. 1-10
1-6 Dimensions for MT3750C Flanged and Threaded Metal Tube Flowmeter with Indicator ................. 1-11
1-7 Dimensions for MT3750C Flanged and Threaded
Connections with Transmitter or Inductive Alarm ............................................................................. 1-12
1-8 Dimensions for MT3750C Flanged and Threaded Connections with Reed Switch Alarm ................ 1-13
1-9 Dimensions for MT3750C Panel Mounting ....................................................................................... 1-14
2-1 Typical Installation ............................................................................................................................. 2-3
2-2 Inductive Switch Wiring Diagram ....................................................................................................... 2-4
2-3 Inductive Switch Wiring ..................................................................................................................... 2-6
2-4 Reed Switch Alarm Wiring Using IS Barrier ...................................................................................... 2-7
2-5 Reed Switch Alarm Installation using P & F Relay Unit ..................................................................... 2-8
2-6 Reed Switch Alarm Wiring Using P & F Relay Unit ........................................................................... 2-8
2-7 Transmitter Wiring Diagram for I.S. Systems .................................................................................... 2-9
2-8 Transmitter Wiring Diagram for XP Systems .................................................................................... 2-10
2-9 Transmitter Wiring Diagram ............................................................................................................. 2-11
3-1 Reed Switch Alarm ............................................................................................................................ 3-4
5-1 Model MT3750 Exploded View .......................................................................................................... 5-2
Tables
Table Page
Number Number
1-1 Capacities .......................................................................................................................................... 1-3
1-2 Pressure Ratings in PSIG (Bar G) ..................................................................................................... 1-3
1-3 Fluid Temperature at Ambient Temperature ...................................................................................... 1-3
3-1 Interior Label MT3750 Ar-Mite Alarm ................................................................................................. 3-3
5-1 Model MT3750 Recommended Spare Parts List (Refer to Figure 5-1) ............................................. 5-3
5-2 Model MT3750 Indicator, Alarm and Transmitter Spare Parts List .................................................... 5-4