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