Brooks MT3809G - F Fieldbus Transmitter Indicator Zero

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
July, 2018
Models MT3809G & MT3810G
iii. Then, zero the transmitter shorting the two pins at the terminal block,
See Figure 2-11.
Note: The zero function may be activated as part of a periodical
maintenance check. If desired, a zero switch can be remotely mounted
and wired to these terminals. The hazardous area classication will
determine the wiring methods used for this switch.
h) Under actual ow conditions, verify that the transmitter output matches
the mechanical pointer position. If a discrepancy is noted, the Foundation
Fieldbus communication can be used to verify or adjust the transmitter
settings.
Transmitter with alarm and pulse output wiring connections:
The alarm contact and pulse output digital signals are electrically
identical, independent, optically coupled transistor outputs. Wiring will be
as required by the external driven system - Prover, DCS/PLC, terminal-
automation system, batch controller etc. These can be wired as an open
collector or open signal on the high or low side of voltage-rail within the
receiving equipment, depending upon the signal needs. When interfacing
to external electronics, be careful to work within the voltage/current
polarity and limits as specied in Section 1.
To install the typical transmitter alarms and/or pulse digital outputs
conguration:
i. Intrinsically safe installations require the use of barriers, power supply
limits and cable parameters. All connections are made in the transmitter
housing.
Refer to Table 1-12 in approvals section and Figures 2-5a/2-5b and
2-8a/2-8b.
ii. If the area classication is Division 2, barriers are not required and
cable parameters are not applicable. However, the electrical code will
require the use of conduit for wire protection.
Figure 2-11 Foundation Fieldbus Transmitter Indicator Zero