Installation - Endress+Hauser iTEMP PCP TMT 121 Operating Instructions Manual

Installation

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3.2 Installation
3.2.1 Typical North American installation
For installation, proceed as follows:
• Attach the TMT 121 transmitter to a suitable rail or panel.
• Attach thermowell (1) to pipe or process container wall. Install and tighten the ther-
mowell before applying process pressure.
• Attach necessary extension nipples and adapters (3) to the thermowell (1). Seal the
nipple and adapter threads with silicone tape.
• Screw the sensor (2) into the thermowell (1). Install drain seals if required for harsh
environments or to satisfy code requirements.
• Screw the connection head (4) to the sensor assembly.
• Attach the sensor lead wires to the connection head terminals.
• Connect sensor wires from the terminals inside the head to the TMT 121 transmitter
(5).
• Install and tighten the connection head cover. Enclosure covers must be completely
engaged to meet explosion-proof area requirements.
Fig. 3: Installation of DIN rail TMT 121 transmitter.
1 thermowell
2 sensor
3 extension nipples and adapters
4 connection head
5 TMT 121 transmitter
Temperature DIN rail transmitter
Endress+Hauser