Temperature
Isolating amplifier without supply type M2931
Minh Quan Technology Joint Stock Company
Hotline: 01692 114 683
Mr Que: 0973 852 363
Ms Ha: 0165 2197 433
Email: mqtekvietnam@gmail.com
Call usProduct information
- passive isolating 1:1
- up to 4 separate isolating amplifiers
- range 0…27mA
- 17.5mm small case
Product Details
This “snap-on” interface module utilize isolating amplifier channels to galvanically isolate DC current signals without a power supply.
The input current signal can be in the range of 0…27mA. This DC signal is converted to an AC signal, transformed 1:1 to the secondary, rectified and ripple rejected by a filter, thus restoring the original DC current signal.
The small 17.5mm case contains up to 4 separate isolating amplifiers.
The output can be on a common mode voltage or on different ground and may feed remote displays, recorders, PLC’s analog input, computers and data loggers.Applications:
Heating, air conditioning, signal isolation, data logging applications etc.
Specifications
| Input | |
| Input current (IE ): | 0…5mA, 0…20mA, 4…20mA, max. 27mA |
| Max. input current: | 50mA with open output |
| Max. input voltage (U ); | +20V |
| Max. voltage drop: | 3,7V |
| Output | |
| Current transfer ratio (I : I ): | 1,0 : 1,0 |
| Max. load: | ≤500Ω |
| Load error: | Typ. ±0,1% |
| Output ripple | 0,9% (R =280W, I =20mA, f=3,5kHz) |
| Rise time: | Typ. 75ms |
| Working temperature range: | -10…+60°C (max± 0,1%/20mA) |
| Coupling | |
| Internal oscillator: | Typ. 3,5 kHz |
| Max. common mode voltage (Umax ): | 230VAC RMS, Testvoltage: 2500Veff /1’. |
| Operating Principle | The input signal is chopped with 3.5kHz, transformed from the primary to the secondary by a transformer, rectified and filtered. (see block diagram) |
| Supply current: | None, will be drawn out of the primary signal |
| CE-Conformity: | fulfilled |
| Weight: | Xấp xỉ 130g |
| Warranty: | 2 years |
Reviews
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