ABB 266CSH - Opening and Closing the Housing; Adjusting the Transmitter Position

266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER | OI/266CXX/MODBUS-EN REV. A 25
Opening and closing the housing
DANGE
R
Danger of explosion if the device is operated with the
transmitter housing or terminal box open!
Before opening the transmitter housing or the terminal box,
note the following points:
• Check that a valid fire permit is available.
• Make sure that there is no explosion hazard.
• Before opening the device, switch off the power supply
and wait for t > 2 minutes.
NOTICE
Impairment of the IP rating
• Check the O-ring gasket for damage and replace it if
necessary before closing the housing cover.
• Check that the O-ring gasket is properly seated when
closing the housing cover.
M10803-01
1
2
3
1 Housing cover (electronic / LCD display)
2 Housing cover (terminal compartment)
3 Cover lock screw
Figure 14: Cover lock (example)
To open the housing, release the cover lock by screwing in the
screw
3.
After closing the housing, lock the housing cover by unscrewing
the screw
3.
Adjusting the transmitter position
Transmitter housing
DANGE
R
Damaging the device carries a risk of explosion!
Never disconnect the transmitter housing from the sensor.
Only loosen the screws shown when rotating the transmitter
housing!
M10759-01
1 1
A
C
B
1 Fixing screw
Figure 15: Rotating housing
To improve access to electrical connections and for better
visibility of the optional LCD display in the field, the transmitter
housing can be rotated through 360°. A stop prevents the
housing from being turned too far.
To rotate the housing, perform the following steps:
A Loosen the fixing screw approx. one revolution
(do not remove it).
B Rotate the transmitter housing into the desired position.
C Retighten the fixing screw.