Specifications

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Installation and Operation Manual

X-VA-MT3750C-eng

Part Number: 541B063AAG

April, 2014

Brooks

Ar-Mite

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