TAMP4-VF with timed channel selection

TAMP4-VF zeitgesteuerter Multiplexer

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In electronics, a multiplexer (or mux) is a device that selects one of several analog input signals and forwards the selected input into a single analog output. This makes it possible for several signals to share devices, for example one A/D converters of a PLC  instead of having one device per input signal.

So the temperature multiplexer TAMP4-VF shares up to 4 PT100 sensors to one analog output of 4 ... 20 mA.. These are operating as 2-wire sensors with 1.5 mA constant current.

In time slots of 1 second one channel is switched to the next. The measured temperature is put as an analog signal to the output of AA (4-20mA).

By means of two binary coded digital outputs TAMP4 indicates the number of the selected channel to a supervising control according to the formula:

Current input channel = 2 * bit1 + 1 * bit0  + 1

The connections are made via push-in terminals up to max. 1.5 mm².

TAMP4-VF is contactless and maintenance free

Technical Data: 

Power supply U V  = 24 V DC / 0,1 A

Housing B x H  x T          70 x 86 mm x 60 mm

DIN Rail mounting

Protection IP 20

Ambient temperature -40°C ... +75°C

Temperatur sensor  PT100 in 2-Leitertechnik

Temperature range -50°C C ... +150°C

Tolerance  < ± 2°C

Measuring current  ca. 1,5 mA

Output 4 ... 20 mA   (≤ 500 Ω)   max. 10 V

Error detection output < 4 mA