The DRSL-LPO Series DIN rail 2-wire transmitter 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 host (output) current signal loop. Input transmitter (Tx) power supply of 3.5 to 32.5V is provided.
The DRSL-LPO series offers isolation between input and output, provides surge suppression and protects control systems from transients and noise. These units also eliminate ground loops and can be used for measuring floating signals. Low power consumption facilitates DIN rail mounting without the need for any air gap. Measurement ranges are factory calibrated. These isolators operates over a wide temperature range from -25 to 70°C (-13 to 158°F).
SPECIFICATIONS NUMBER OF CHANNELS DRSL-LPO-1: 1 DRSL-LPO-2: 2 CURRENT INPUT Signal Range (Input to Output): 3.8 to 20.5 mA Signal Conversion: 1:1 Functional Range: 3.5 to 23 mA (NAMUR NE43 compliant) Available 2-Wire Transmitter (Tx) Supply: 3.5 to 32.5V CURRENT OUTPUT Output Loop Current Limitation: 24 mA typical Output Overload: 50 mA max
GENERAL Supply Voltage: 6 to 35 Vdc Internal Consumption: 50 mW per channel Voltage Drop (Input to Output): 2.5V typical 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): ≤±8 µA Temperature Coefficient (>25°C): ≤±0.02 µA [(T-25°C) x Vsupply] Temperature Coefficient (<25°C): ≤±0.07 µA [(T-25°C) x Vsupply] EMC Immunity Influence: <±0.5% of span (4 to 20 mA) Extended EMC Immunity NAMUR NE 21, A Criterion, Burst: <±1% of span
ENVIRONMENTAL Operating Temperature: -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