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IsoPAQ-21L and IsoPAQ-22L are 1- and 2-channel loop powered isolators used for electrical isolation of 0(4)-20 mA signals to avoid measurement errors due to different voltage potentials or ground loops in an instrument installation.
The isolators need no power supply, which contributes to reduced installation costs compared to isolation transmitters. The high isolation level of 4 kV provides an effective protection for downstream devices.
The high reliability and the Protective Separation are additional features that ensure a safe system operation.
The 2-channel version, IsoPAQ-22L offers a very cost effective alternative combined with a high-density mounting.
| Input | ||
| Input signal | 0(4)-20 mA / max. 30 V | |
| Operating current | < 20 μA | |
| Voltage drop | < 2 V | |
| Overload | ≤ 100 mA, ≤ 30 V | |
| Output | ||
| Output signal | 0(4)-20 mA / max. 28 V | |
| Response time (10 to 90 % of end value) | 2 ms @ 250 Ω load / 6 ms @ 750 Ω load | |
| Ripple | < 0.07 % of measured value, ~100 kHz | |
| General data | ||
| Transmission error | ± 0.1 % of end value | |
| Load error | ± 0.03 % of measured value / 100 Ω load | |
| Temperature coefficient 1) | ± 0.0015 %/K of measured value / 100 Ω load | |
| Test voltage | 4 kV, 50 Hz | Between all circuits |
| Working voltage 2) (Basic Insulation) | 600 VAC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010 part 1 between all circuits. | |
| Protection against electrical shock 2) | Protective separation acc. to EN 61140 by reinforced insulation acc. to EN 61010 part 1 up to 300 VAC/DC for overvoltage category II and pollution degree 2 between all circuits. | |
| Ambient temperature | Operation Transport and storage | -20 to +70 °C (-4 to +158 °F) -35 to +85 °C (-31 to +185 °F) |
| EMC 3) | EN 61326-1 | |
| Construction | 12.5 mm (0.5”) housing, protection class: IP20 | |
| Connection | ≤ 2.5 mm2, AWG 14 | |
| Weight | Approx. 100 g | |
1) Average TC in specified operating temperature range
2) As far as relevant the standards and rules mentioned above are considered by development and production of our devices. In addition relevant assembly rules are to be considered by installation of our devices in other equipments. For applications with high working voltages, take measures to prevent accidental contact and make sure that there is sufficient distance or insulation between adjacent situated devices.
3) Minor deviations possible during interference
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