Passive current output signal isolator DT1102 IP

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Product features

• 4-20 mA passive current output
• Selectable input ranges with front panel switches:
• 0-20 mA / 4-20 mA / 0-10 V / 2-10 V
• 3 way isolation (input/output/power supply)
• 20 VDC transmitter supply on the input for two wire transmitters
• Non-linearity: < 0.01%
• Temperature-coefficient: 25 ppm / °C typ.
• 24 V ± 10% DC; 230 V ± 10% AC/DC power supply
• TS-35 rail mounting, 12.5 mm width

Product description
The DT1102 IP… galvanic isolators with passive current output are necessary in cases where signal sources with active (voltage, current) output must be connected to a signal processor with active input.
Active input signal processors are used to receive 4-20 mA two-wire (passive) transmitters, their input powers the transmitter connected to them. The passive current output of the DT1102 IP matches the input of this type of signal processor, solving the connection of active output signal sources.
The DT 1102 IP has three-way isolation, i.e. the input, output and power supply are galvanically isolated from each other.
Continuous isolation voltage is 250 VACeff.
The input ranges are selectable with front panel switches:

• 0-20 mA / 4-20 mA / 0-10 V / 2-10 V

A 20 VDC / 24 mA transmitter power supply is available at the input for powering passive 4-20 mA two-wire transmitters.
The device has two inputs:

• current: 0 (4) mA – 20 mA*
• voltage: 0 (2) V – 10 V*

* only one input can be used at the same time
The transmission characteristics are exceptionally good: non-linearity < 0.01%, temperature factor < 25 ppm / °C typically.
The LED indicators on the front panel provide information on the presence of power supply and possible error conditions.
The device can be ordered with two types of power supply:

• DT1102 IP: 24 V ± 10% DC,
• DT1102 IP PS: 230 V ± 10% AC/DC

The device has a 12.5 mm wide terminal box design and can be snapped onto a TS-35 rail.

Technical specification
Safety data: The connection terminals of the supply voltages are isolated from each other, the isolation is in compliance with the standard EN 61010-1, taking into consideration the following:

• Pollution level: 2
• Measurement category: II

Input parameters:

• Input signal: DC current or DC voltage
• Ranges: 0-20 mA, 4-20 mA, 0-10 V, 2-10 V
• Overload: 400 mA (current input), 100 V (voltage input)
• Input resistance (current input): 10 ohm
• Input resistance (voltage input): 102 kohm

Transmitter power supply:

• Voltage: > 20 V (20 mA load)
• Overcurrent protection: 25 mA

Output parameters:

• Output signal: 4-20 mA passive curent
• Ranges: 4-20 mA
• Overdriving ability: 22.5 mA
• Error of output @ 25 ºC ±2 ºC: 0.1 °C + 0.05% (max.)
• Temperature coefficient: < 20 ppm / °C (typ.); < 50 ppm / °C (max.)
• Supply-voltage effect: practically zero
• Settling time: 100 ms

Galvanic isolation:

• Working voltage: 250 Veff (between the input, the output and the power supply terminals); 2500 VDC (1 min.)

Power supply:

• Supply voltage: 24 V ± 10% DC (DT1102 IP); 230 V ± 10% AC/DC (DT1102 IP PS)
• Power consumption: 1.6 W (DT1102 IP); 2.4 W / 3.8 VA (DT1102 IP PS)

Ambient conditions:

• Operating temperature range: 0-50 °C (-20 - +50 °C for customer request)
• Relative humidity: 90% (max., non-condensing)
• Place of installation: cabinet
• Mounting position: vertical (horizontal rail position)

Electromagnetic compatibility (EMC) accordance with the standard EN 61326-1

• Noise emission: Group 1, Class B
• Immunity: industrial area
• ESD: 4 kV / 8 kV surface / air
• BURST: 2 kV / 1 kV power / signal
• SURGE: 1 kV
• Conducted RF immunity: 3 Veff
• Power failure bypass: 20 ms @ 190-250 VAC

General data:

• Housing: TS-35 rail mounting housing material: polyamide PA6.6
• Connection: Pluggable screw-terminal
• Connecting cable: 1.5 mm2 (max.)
• Dimensions: 12.5 × 108 × 114 mm (width × height × depth)
• Weight: 0.15 kg
• Protection: IP20

Detailed information see in operating instructions. The Manufacturer maintans the right to change the technical data!