Description
The TEMB is a screw-in temperature sensor with Pt100, measuring amplifier, display, and two limit contacts.
It is screwed directly into pipes, tanks or units and measures, displays, and switches, without additional electronics in the control cabinet – one device at the process, one signal to the control system, one value to read on site. The protective tube is made of stainless steel 1.4571 in standard dimensions Ø 6 × 0.5 mm; with PN 25, at least IP 65 and potted circuit boards, the device weighs approximately 150 g, and the mounting position is arbitrary.
The measured value remains readable on site: The display is 4-digit, 8.5 mm high and red, reversible by 180°, the head is rotatable by 330°. Operation is via three buttons (TouchM). The two limit contacts operate as PNP or NPN with 30 VDC / 200 mA, optionally 1000 mA; switching delay and failsafe are adjustable from 0.0 … 999.9 s.
Measurement is performed with a Pt100 in 4-wire connection in class A, B or AA (B1/3 DIN) in the range -50 … +200 °C with a minimum span of 50 °C. The output is 4 … 20 mA in the 2-wire current loop; the accuracy is max. 0.1 % of the measuring range plus sensor error at 24 bit resolution. The sensor is powered with 12 … 35 VDC from the current loop, reverse polarity protected and short-circuit proof.
Before ordering, please note: The ambient temperature is not the medium temperature – the medium may be up to +200 °C warm, but the electronics in the head can only tolerate -40 … +85 °C; the manufacturer explicitly states for the series that temperatures above +85 °C can destroy the electronics. Two limit contacts are not available on every connector, but only on M12 five- and eight-pin, on MIL, and on the cable. Higher ranges up to 250 °C are only mentioned in the data sheet upon request. An admissible load of the current loop is not documented in the manufacturer's data sheet; if planning long lines, the value must be inquired there. For programming, the configurator DEV-KMA with TrComm software is required. A CE mark is not documented in the manufacturer's data sheet, and a declaration of conformity is not available. Explosion protection is also not documented for this version; the Ex version is the TEMD.
Advantages at a glance
- Measures, displays, and switches – one device directly at the process
- Pt100 in 4-wire connection, class A, B or AA (B1/3 DIN)
- Medium -50 … +200 °C, accuracy max. 0.1 % of the measuring range
- 4 … 20 mA in the 2-wire loop, 12 … 35 VDC from the loop
- Display 4-digit, reversible by 180°, head rotatable by 330°
- Two limit contacts, PNP or NPN, 30 VDC / 200 mA
- Protective tube 1.4571, system pressure PN 25, at least IP 65