IRMA3035

IRMA - signal converter for PT100Converts Pt100 into standard signals Power supply from current loop or 9 → 32 Vdc Quickly adjusted via side-mounted DIP switches Wire breakage detection Input: | Pt100 in 2- or 3-wire technology or resistance 35.5 Ω → 316.5 Ω. Range adjustable via DIP switch ---|--- Output: | Linear proportional to the input Current loop: | 4 → 20 mA 9 → 32 Vdc: | 0 / 4 → 20 mA and 0 → 10 V Voltage |   power supply: | Current loop with max. 30 mA or 9 → 32 Vdc, max. 200mA Accuracy: | ±0.075 % of the range + 0.1 °C @ 23 °C corresponds with the temperature scale in accordance with ITS-90 after 45 minutes Reaction time: | 400 ms Wire breakage detection: |   Adjustable signal: |   Current loop: | 3.5 or 22.5 9 → 32 Vdc: | -0.5 or 22.5 mA, 3.5 or 22.5 mA, -0.5 or 11.5 Vdc Protection: | 1500 Vac input and output Ambient conditions: |   Operation: | -25 °C → +75 °C Bearings: | -40 °C → +85 °C Rel. air |   humidity: | 85 % Temperature |   coefficient: | ±0.01 % of the input range per °C Connection: | Via screw connections Housing: | stable plastic housing Dimensions: | 23 x 107 x 79 mm W x H x D ### DIN 卡轨安装

The IRMA accepts a 2, 3, or 4 wire RTD or resistance input and converts it into a 4 to 20 mA current output. The 4 to 20 mA output is linearly proportional to the temperature or the resistance input. This output is ideal for interfacing to indicators, chart recorders, controllers, or other instrumentation equipment. The IRMA is loop-powered which means that the same two wires are carrying both the power and the output signal. The unit controls the output current draw from 4 to 20 mA in direct proportion to the input while consuming less than 4 mA for operation. The conversion to a current output signal makes the IRMA less susceptible to noise interference and allows accurate transmission over long distances. Two-Way isolation allows the use of grounded RTD"s which can provide additional noise reduction benefits. The IRMA uses an eight position DIP switch to accomplish the input sensor configuration, range selection, and unit calibration. A simple range setting technique Field Calibration is used so the actual input signal adjusts the output current for scaling. This technique eliminates the need for potentiometers which are vulnerable to changes due to vibration. The unit is equipped with a universal mounting foot for attachment to standard DIN style mounting rails, including top hat rail T according to EN 50 022 - 35 X 7.5 and 35 X 15, and G profile according to EN 50 035 - G 32.