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6185
Loop-powered isolator
- 1-, 2- and 4-channel galvanic isolation
- Slimline channel width of less than 6 mm
- No separate supply necessary
- Low response time
- High noise suppression
Application
- Galvanic separation of analog current signals.
- Elimination of ground loops and measurement of floating signals.
- A competitive choice in terms of both price and technology for galvanic isolation of current signals to SCADA systems or PLC equipment.
- Especially useful in applications necessitating an unproblematic transmission of current signals according to NAMUR (sensor error detection).
Technical characteristics
- PR 6185 is powered by the measured signal and loads the loop with max. 1.8 VDC.
- The input is protected against overvoltage and polarity error.
- The drop voltage for each channel can be calculated according to the following expression: Vdrop = 1.8 + (Iout. * Rload.
- The output is voltage-limited to 15 VDC.
- Inputs and outputs are floating and galvanically separated.
Mounting / installation
- Mounted vertically or horizontally on a DIN rail. As the devices can be mounted without distance between neighboring units, up to 168 channels can be mounted per meter.
Environmental Conditions
| Operating temperature | -20°C to +60°C |
| Calibration temperature | 20...28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP20 |
Mechanical specifications
| Dimensions (HxWxD) | 109 x 23.5 x 104 mm |
| Weight approx. | 155 / 180 / 230 g (1 / 2 / 4 channels) |
| DIN rail type | DIN 46277 |
| Wire size | 1 x 2.5 mm2 stranded wire |
| Screw terminal torque | 0.5 Nm |
Common specifications
Supply |
|
| Power dissipation, per channel | 40 mW |
Isolation voltage |
|
| Test voltage | 2 kVAC |
Response time |
|
| Response time (0...90%, 100...10%) | < 4 ms |
| Voltage drop |
< 1.8 VDC, min.
1.8 V + (Iout.*Rload), max. |
| Signal / noise ratio | Min. 60 dB (0...100 kHz) |
| Accuracy | Better than 0.1% of sel. range |
| EMC immunity influence | < ±0.5% of span |
Input specifications
Current input |
|
| Measurement range | 0...23 mA |
| Input resistance | ≈ 90 Ω + Rload (@ 20 mA) |
Output specifications
Current output |
|
| Signal range | 0...23 mA |
| Min. signal range | 1:1 |
| Load (@ current output) | ≤ 600 Ω |
| Load stability | < 0.03% of span / 100 Ω |
| Current limit | 50 mA |
| Voltage limit | 15 VDC |
| of span | = of the presently selected range |
Observed authority requirements
| EMC | 2014/30/EU |
| EAC | TR-CU 020/2011 |