Installation and operation manual, Figure 1-9b cam setting for alarm signal – Brooks Instrument MT3809G User Manual

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Installation and Operation Manual

X-VA-MT3809G-MT3810G-eng

Part Number: 541B182AAG

September, 2013

Models MT3809G & MT3810G

Section 1 Introduction

Figure 1-9A Power Supply vs. Maximum Load Resistance

Note: load resistance should also include I.S. barrier resistance. When using HART

communicator the minimum load resistance is 250 ohms.

Figure 1-9B Cam Setting for Alarm Signal

Loop Voltage vs. Load Resistance

600

650

700

750

800

850

900

950

1000

1050

18

19

20

21

22

23

24

25

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27

28

29

30

31

32

33

34

Loop Voltage

Load

Resistance

Loop Resistance (maximum ohms) = 30 X voltage + 16

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