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.
The DRSL-LPI 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-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 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
† All dollar amounts on this site are shown in US currency.
Ordering Example: (1) DRSL-LPI-1 DIN rail input loop-powered isolator, 1 channel, USD$4,530.00, plus (1) DRSL-MOD-STOP Module stop (screwed onto DIN rail to support and hold mounted devices), USD$240.00, plus (1) RAIL-35-1 35 mm (1.4, USD$555.00, USD$4,530.00 + 240.00 + 555.00 = USD$5,325.00
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