universal isolating amplifier | TV125M / ST125M
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Art.Nr.: TV125M-ST125MProduktbeschreibung
general information:
Isolation amplifiers of series TV/ST125M are suitable for potential separation or to convert the standard signals. The universal design of inputs and the output, and the internal power supply with widerange mains adapter enable a wide spectrum of applications with only one type of device. Alternatively the auxiliary voltage supply can be carried out via a mounting rail bus connector. The pluggable terminal strips allow a simple and time-saving wiring.
The configuration of input and output signals is done by front panel dip switches in a very easy and fast way.
Because of the microprocessor design it is possible to identify shortfall or exceeding of the measurement range. This is then signaled by a bi-color status LED on the front panel. In case of an error the output is then set to a defined initial value or ending value.
The initial value and the end value of the measuring range can be adjusted by means of two frontal trimmers.
The device version of ST125 additionally provides a transmitter power supply for external 2-, 3- and 4-conductor sensors.
- standard inputs and outputs with adjustment function
- safe electrical isolation between input / output / auxiliary voltage due to reinforced insulation according to DIN EN 61010-1
- functional safety to SIL2 EN61508
- input intrinsically safe for the connection of sensors in the ex-zonen 0 and 20
- equipment installation possible in ex-zone 2
- wide range mains adapter for AC and DC supply
- power rail supply
- output accuracy <0,2 % of full scale
- operating display and status messages via bi-color LED
- configuration via front panel dip switches
- coded plug-in terminal blocks
- small design, width 12.5 mm
- mounting rail TS 35 and EN60715
| auxiliary voltage | |
| wide-range mains adapter (47..63 Hz): | 20 V DC to 125 V DC / 85 V AC to 253 V AC |
| power rail supply: | 24 V DC +/- 15 % |
| power consumption wide-range mains adapter: |
<4 VA |
| power rail supply: | <2 W |
| conformity: | directive 2014/35/EU |
| EMC: | directive 2014/30/EU |
| standards: | EN 61010-1: 2010, EN 61326-1: 2013, EN 61326-3-1: 2008 |
| rated voltage: | 253 V AC, 125 V DC according to EN 60079-11 300 V AC/DC according to DIN EN 61010-1 with overvoltage category 2 and degree of contamination 2 between all circuits; safe separation with amplified isolation |
| test voltage: | 3kV AC input/output/auxiliary voltage |
| ambient conditions | |
| working temperature: | -10°C to +60°C |
| storage temperature: | -20°C to +80°C |
| air humidity: | 10 % to 90 % (non-condensing) |
| inputs | |
| voltage input: | 0 V to 10V or 2 V to 10 V switchable, Ri = 30 kΩ. Overload max. 26 V DC |
| current input: | 0 mA to 20 mA or 4 mA to 20 mA switchable; Ri = 51 Ω, 113 mA |
| measuring span: | adjustable ±2 % |
| zero point: | adjustable ±2 % |
| output | |
| voltage output: | 0 V to 10 V or 2 V to 10 V switchable, load >500 Ω |
| current output: | 0 mA to 20 mA or 4 mA to 20 mA switchable, load <600 Ω |
| step response: | 40 ms |
| standard error: | <0.2 % of measured value |
| temperature coefficient: | <0.01 % / K |
| transmitter feed | |
| rated voltage at 20 mA output current: | > 15 V DC; terminals 51, 52 > 14 V DC; terminals 51, 41, Ri = 300 Ω |
| safety integrity | |
| level: | Sil 2 (parameters according to EN 61508 and SN 29500) for input types 4 mA to 20 mA or 2 V to 10 V and output types 4 mA to 20 mA or 2 V to 10 V |
| device type: | B |
| HFT: | 0 |
| error signalling: | output 0 V respective 0 mA |
| reaction time: | normal function → error: 40 ms, error → normal function: 1s (self resetting) |
For further information p.r.t. data sheet:
instruction manual as .pdf:
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