SMAR TT400WH, Manual

Page: 30 / 46

TT400 WirelessHART ® - Operation, Maintenance anda Instructions Manual
3.2
Disassembly Procedure
WARNING
This operation type must be done in a safety area and with the transmitter no energized.
Sensor
If the sensor is mounted on the transmitter, first disconnect the wires to prevent them from breaking. To
access the terminal block, first remove the sensor housing screw ( 27 ) and housing ( 26 ), removing it
carefully.
a) Remove the front and back covers. b) Remove the main board at the front of the
housing, unplug the sensor and radio
cables;
c) Disconnect the sensor from the bottom, as
pictured, unscrewing it carefully;
d) d) Disconnect the Battery Module from the
radio board at the indicated point and
unscrew it from the housing.
Table 3.2 – Quick Disassembly Procedure Transmitter
Antenna
If it is necessary to disassemble the antenna set, it is mandatory to remove the back cover of the
equipment to disconnect the antenna cable from the radio board.
WARNING
This procedure is required for the antenna cable is not damaged during its rotation in the disassembly
process.
After disconnecting the cable, it must release the antenna set by means of the set screw ( 20 ) with the
aid of a wrench, turning it counterclockwise.
To avoid equipment damage, do not rotate the housing more than 270 ° from the limit of the thread,
without disconnecting the electronic circuit and sensor power supply. Do not forget to release the sensor
rotate locking screw. See Figure 3.1.
Figure 3.1 – Housing Safety Rotate
To avoid equipment damage, do not rotate the antenna below the imaginary line of 180 ° in relation to
the base of the equipment. To avoid damage to the equipment, do not rotate the antenna below the