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tmh5554a0600p_06
tmh555en2106p
4.
INSTALLATION AND WIRING
During the installation, the following instructions must be considered:
Depending on the thermal characteristics of the measured material the sensor must be installed proper distance from the silo wall,
Depending on the cross section of the silo several sensors should be installed,
If the measured medium is granular solids, check the structural data of the silo's roof, and if necessary, stress needs to be relieved from the structure.
The place of installation must be selected so that it provides adequate space and easy access for installation, calibration and monitoring.
The instruments can be equipped with a flange or a threaded process connection according.
The housing of the instrument can be rotated. After the installation, turn the housing to the best position for easy reading.
4.1.
W
IRING
The transmitter is designed to operate in 2-wire systems with 11…36 V DC
power supply voltage.
The internal resistance of the devices between the transmitter and the power
supply unit depends on the power supply's voltage.
The wiring must be shielded.
The terminal screws can be accessed after removing the housing cover and
the display module (if there is one).
The unit must be grounded by its grounding screw.
The unit must be connected via the #3(–) and #4(+) terminals.
Programming can be performed after the device is powered on.
After wiring and programming the device, make sure to close the cover and
check if it seals properly.
The instrument may be damaged by electrostatic discharge (ESD) via its terminals; therefore, apply the precautions commonly used to avoid
electrostatic discharge, e. g., touch a properly grounded point before removing the cover of the enclosure.
