Isolated Universal Input DIN Rail Signal Conditioner

Descrizione

The DRSL-U isolated universal input DIN rail signal conditioner provides a competitive choice in terms of both price and technology for galvanic isolation of process signals to SCADA systems or PLC equipment.

The DRSL-U accepts thermocouple, RTD, linear resistance, potentiometer, voltage or current input and converts these signals to linear voltage or current output. The unit offers isolation between input, output and supply, provides surge suppression and protects control systems from transients and noise.

The DRSL-U also eliminates ground loops and can be used for measuring floating signals. Low power consumption facilitates DIN rail mounting without the need for any air gap. The DRSL-U is easily configured by using the DRSL-DISPLAY programming interface in conjunction with the DRSL-ADAPTOR configuration adaptor.

The DRSL-DISPLAY has a 4 line LCD display with scrolling help text in 7 languages (English, French, German, Italian, Spanish, Danish and Swedish) which guides the user through all the configuration steps. The DRSL-U is designed with electronic hardware switches, consequently it is not necessary to open the device to set any internal DIP-switches.

SPECIFICATIONS
INPUT
RTD Input
Input Type: Pt10, Pt20, Pt50, Pt100, Pt200, Pt250, Pt300, Pt400, Pt500, Pt1000, Ni50, Ni100, Ni120, Ni1000, linear resistance, potentiometer
Cable Resistance Per Wire: 50 Ω max
Sensor Current: 0.2 mA nominal
Effect of Sensor Cable Resistance (3-Wire/4-Wire RTD): <0.002 Ω / Ω
Sensor Error Detection: Yes
Short Circuit Detection: <15 Ω
Linear Resistance Input Range: 0 to 10,000 Ω
Potentiometer Input Range: 10 to 100 kΩ
Thermocouple Input
Input Types: J, K, T, E, R, S, B, N, L, U, W3, W5, LR
Cold Junction Compensation (CJC) Via Internally Mounted Sensor: ±(2.0°C + 0.4°C * Δt) (Δt = internal temperature-ambient temperature)
Sensor Error Detection: Yes
Sensor Error Current: 2 µA nominal (when detecting)
Current Input
Measurement Range: 0 to 20 mA
Programmable Measurement Ranges: 0 to 20 mA and 4 to 20 mA
Input Resistance: 20 Ω + PTC 50 Ω nominal
2-Wire Transmitter Supply: >15 V/20 mA
Voltage Input
Measurement Range: 0 to 12V
Programmable Measurement Ranges: 0 to 1V, 0.2 to 1V, 0 to 5V, 1 to 5V, 0 to 10V, 2 to 10V
Input Resistance: 10 MΩ nominal

OUTPUT
Current Output
Signal Range: 0 to 20 mA (span)
Programmable Signal Ranges: 0 to 20 mA, 4 to 20 mA, 20 to 0 mA and 20 to 4 mA
Load: 20 mA/600 Ω/15 Vdc max
Load Stability: ≤0.01% of span/100 Ω (span=currently selected measurement range)
Range Limits (NAMUR NE43 Out of Range): Below 3.8 mA or above 20.5 mA for 4 to 20 mA output; 0 mA or above 20.5 mA for 0 to 20 mA output
Sensor Error Detection: Below 3.5 mA or above 23 mA for 4 to 20 mA output; 0 mA or above 23 mA for 0 to 20 mA output
Current Limit: ≤28 mA
Voltage Output
Signal Range: 0 to10 Vdc
Programmable Signal Ranges: 0 to 1V, 0.2 to 1V, 0 to 5V, 1 to 5V, 0 to 10V, 2 to 10V, 1 to 0.2V, 1 to 0V, 5 to 1V, 5 to 0V, 10 to 2V and 10 to 0V
Load (Min): >10 kΩ

GENERAL
Supply Voltage: 16.8 to 31.2 Vdc via power rail or connectors
Power Consumption: 1.2 W max
Internal Consumption: 0.4 W typical, 0.65 W max
Isolation: Input/output/power
Isolation Voltage (Test): 2.5 kVac
Isolation Voltage (Working): 300 Vac
Status LED: Green LED indicates operational status of the unit and input sensor
    Normal Operation: Flashes for 15 ms at 13 Hz rate
    Sensor Error: Flashes for 15 ms at 1 Hz rate
    Hardware Failure: LED off
Signal/Noise Ratio: >60 dB
Response Time (0 to 90%, 100 to 10%) for Temperature Input: ≤1 s
Response Time (0 to 90%, 100 to 10%) for mA/V input: ≤400 ms
Accuracy: Absolute accuracy or accuracy from table on PDF (whichever is greater)
Absolute Accuracy:
    All Input Types: ≤±0.1% of span (selected input range)
Temperature Coefficient:
    All Input Types: ≤± 0.01% of span/°C
EMC Immunity Influence: <±0.5% of span
Extended EMC Immunity NAMUR NE 21, A Criterion, Burst: <±1% of span (span = selected input range)

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

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