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The DRSL-LPI Series DIN rail input loop powered isolators provide a competitive choice in terms of both price and technology for galvanic isolation of current signals to SCADA systems or PLC equipment. These units provide isolation and 1:1 conversion of standard current signals and are powered by the analog input current signal loop.
Number of Channels | |
DRSL-LPI-1 | 1 |
DRSL-LPI-2 | 2 |
Current Input | |
Signal Range (Input to Output) | 0 to 20.5 mA |
Signal Conversion | 1 to 1 |
Functional Range | 0 to 23 mA (NAMUR NE43 compliant) |
Start Up Current | 10 µA typical |
Input Overload | 50 mA max |
Input to Output Voltage Drop | 1.25V + (0.015 x Vout) where Vout = Iout x Routput, typical |
Input Voltage Drop | (Unit voltage drop) + Vout |
Current Output | |
Output Load | 600Ω max |
Output Load Stability | <0.01% of span/100 Ω (span = 0 to 20 mA) |
Voltage Limit | 17.5V |
General | |
Internal Consumption | 30 mW per channel |
Isolation Voltage (Test) | 2.5 kVac |
Isolation Voltage (Working) | 300 Vac |
Signal/Noise Ratio | >60 dB |
Cut-Off Frequency (3 dB) | 100 Hz |
Response Time (0 to 90%, 100 to 10%) | <5 ms |
Absolute Accuracy (at 25°C) | ≤±10 µA + 0.05% of max value of selected span |
Temperature Coefficient | ≤±2 µA/°C |
EMC Immunity Influence | <±0.5% of span |
Extended EMC immunity: NAMUR NE21, A Criterion, Burst | <±1% of span |
Environmental | -25 to 70°C (-13 to 158°F) |
Storage Temperature | -40 to 85°C (-40 to 185°F) |
Calibration Temperature | 20 to 28°C (68 to 82°F) |
Relative Humidity | 0 to 95% RH non-condensing |
Protection Degree | IP20 |
Installation Area | Pollution degree 2 and measurement/overvoltage category II |
Mechanical | |
Dimensions | 113 H x 6.1 W x 115 mm D (4.4 x 0.24 x 4.5") |
Weight | 70 g (0.15 lb) approx |
DIN Rail Type | DIN EN 60715 - 35 mm |
Wire Size | 0.13 x 2.5 mm²/AWG 26 to 12 stranded wire |
Screw Terminal Torque | 0.5 Nm |
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