Transformer current transmitter DT1612 I

DIN railACanalog

Product features

• 3 measuring ranges: 0–1 AAC / 0–5 AAC / 0–10 AAC *
• * switch selectable
• True RMS converter
• CAT III measurement category
• 0.2% accuracy
• 0–20 mA / 4–20 mA / 0–10 V / 2 -10V outputs *
• * switch selectable
• 24 VDC / 230 V AC/DC power supply versions
• 22.5 mm wide, TS-35 rail-mountable terminal housing
• complies with EN 60688

Product description
The DT1612 I AC current transmitters produce an output signal proportional to the true effective value (TRMS) of the input signal. The input is separated from the electrical network to be measured by a wide-band measuring transformer.
The inputs of the transmitters meet the requirements of the CAT III measurement category.
The input measuring ranges can be selected using front-panel switches:

• 0–1 A (AC)
• 0–5 A (AC)
• 0–10 A (AC)

The continuous input overcurrent capability is 20 A.
The measuring range can be expanded as desired with an external current transformer with a ratio of x/5 or x/1.
The transmitters have two outputs:

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

* only one output can be used at a time
The output signal ranges can also be selected with a front panel switch.
Transmitter accuracy: 0.2%, in the 40 – 400 Hz frequency range.
Settling time: 120 ms (max.)
The devices can be ordered with two types of power supply:

• DT1612 I type: 24 VDC ±10%
• DT1612 I PS type: 230 V AC/DC ±10%

The inputs, outputs and power supply are galvanically isolated from each other, the separation meets the requirements of EN 61010-1.
Front panel indicators indicate the transmitter’s operational status and any error conditions.
The device is a terminal housing design, width: 22.5 mm.
The transmitters fully comply with the requirements of EN 60688.

Technical specifications
Safety data: The connection terminals of the inputs, outputs and supply voltage are galvanically isolated from each other. The isolation complies with the requirements of EN 61010-1, taking into account the following:

• Pollution level: 2
• Measurement category: CAT III

Input parameters:

• Input current: 0–1 AAC / 0–5 AAC / 0–10 AAC
• Continuous overcurrent capability: 20 A
• Short-term (1 sec.) overcurrent capability: 200 A
• Input consumption: 0.2 VA (max.)
• Frequency range: 40–400 Hz

Output parameters:

• Output voltage: 0–10 V (max. 14 V)
• Load resistance: 500 ohm (min.)
• Output current: 0–20 mA (max. 24 mA)
• Termination resistance: 500 ohm (max.)
• Overvoltage protection: 18 V (limiter)
• Overcurrent protection: 40 mA (limiter)
• Settling time: 120 ms (max.)
• Output signal error: 0.2% (max.)
• Temperature dependence: 25 ppm / °C (typical)
• Frequency dependence: 0.2% max. (40–400 Hz)
• Supply voltage dependence: negligible
• Load dependence: negligible
• Conversion characteristic: TRMS value

Power supply:

• Supply voltage: 24 VDC ±10% (DT1612 I ...), 230 V AC/DC ±10% (DT1612 I ... PS)
• Consumption: 1.2 W (DT1612 I ...), 1.5 VA (DT1612 I ... PS)

Ambient conditions:

• Operating temperature range: 0–50 °C, on request: -20 – +50 °C
• Relative humidity: 90% (max., non condensing)
• Place of installation: cabinet
• Installation (recommended): vertical (mounted on horizontal rail)

Electromagnetic compatibility (EMC) According to EN 61326-1:

• Interference emission: Group 1, Class B
• Interference immunity: industrial environment

General data:

• Design: TS-35 rail-mounted terminal housing, material: polyamide PA6.6
• Electrical connection: screw terminal
• Connecting wire cross-section: 0.25–2.5 mm2
• Dimensions: 22.5 × 104 × 114 mm (width × height × depth)
• Weight: 0.125 kg
• Protection: IP20

Detailed information is in operating instructions. The Manufacturer maintains the right to change the technical data!