1100-2294 Rev 1
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● Instruments at end of bus have 120Ω terminating resistor enabled. Terminating resistors
may be enabled via the MGS-400 App
(refer to Section 4.2.3.6 for more information)
.
● A/B signal polarity is maintained throughout RS-485 network.
● Connect cable shield drain to physical earth or ground at the controller only.
● Connect cable shield drain to
(SH)
terminal at instrument.
● Cable shield integrity is maintained throughout RS-485 network.
● Do not use shield connection for signal ground. Use cable that provides dedicated
ground conductor for signal ground. Connect signal ground to
(GND)
terminal of
instrument.
3.4.7 Confirming Instrument Functionality
After all wiring has been completed, power the transmitter and perform a calibration / bump test
to verify instrument functionality:
1. Switch power on.
2. Allowing the instrument to complete its start-up sequence and the sensor to stabilize.
3. Perform a calibration or bump test to confirm instrument functionality.
(For instructions
on performing a calibration or bump test, see Section 5.2.)
4. After verifying instrument functionality, reinstall the enclosure lid.
Reinstall the rubber gasket in the transmitter and / or remote sensor. Ensure that
it is seated correctly before replacing lid.
(Note that the IP41-rated configurations
do not include a rubber gasket.)
Using a 5/32″
(4 mm)
hex key / allen wrench
(not included)
tighten the lid screws
in an “X” tightening pattern.
(Tightening torque should be limited to hand tight,
and should be uniform.)
Содержание MGS-400
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