DT1622 U Loop powered AC voltage transmitter

Product features

  • 0-125 VAC / 0-250 VAC / 0-450 VAC voltage input measuring range
  • true root mean squaring (TRMS) values
  • Overvoltage category: CAT III
  • two wire 4-20 mA current loop transmitters
  • 0.2% accuracy class
  • TS-35 rail mounting, 22.5 mm width
  • Full EN 60688 compliance

Type designation

DT1622 loop powered AC current and AC voltage transmitter-type designation

Product description

The DT1622 … Loop powered AC Voltage Transmitters provide an output signal (4-20 mA) proportionally with the TRMS value of the input AC-current, AC-voltage signal.
The device is two wire transmitters without power supply. They are loop powered, the energy for operation charged from 4-20 mA current loop. The measured input is galvanic isolated from power network with wide frequency transformer.
The measure input compliance for overvoltage category CAT III.
The DT1622 U loop powered AC voltage transmitter available of range: 0-125 VAC / 0-250 VAC / 0-450 VAC. The over limiting of DT1622 U is 20% of the nominal value.
The DT1622 U build in 22.5 mm wide housing. The housing is mounting of TS-35 rail.
The transmitters are compliance for according EN 60688.

Technical specifications

Safety data:
The connections terminal of the input and outputs are galvanically isolated from each other. The isolation in compliance with the standard EN 61010-1, taking into consideration the following:
Pollution level:2
Overvoltage group:CAT III
Input parameters:
Input voltage:see the type designation
Input current:see the type designation
Method of measure:TRMS
Long-term overdrive rating:2 × I, 1.2 × U, 500 V (max.)
Short-term (1 sec.) overdrive rating:20 × I, 100 A (max.)
Consumption of input:0,25 VA (max.)
Frequency range:40-400 Hz
Output parameters:
Output current:4-0 mA
Load:500 ohm (max.)
Overvoltage protection:35 V (limited)
Overcurrent protection:24 mA (limited)
Measured time:500 ms (10-90%)
Accuracy:0,2% (max.)
Temperature coefficient:85 ppm / °C (0-60 °C)
Frequency response:0.3% max. (40-400 Hz)
Supply voltage - effect:practically zero
Loading - effect: practically zero
Power supply:
Supply voltage:4-20 mA loop (U = 12-33 VDC)
Ambient conditions:
Operating temperature range:0-60 °C
Relative humidity:90% (max., non-condensing)
Place of installation:cabinet
Installation:vertical (mounting of horizontal rail)
Electromagnetic compatibility (EMC):
in accordance with the standard EN 61326-1
Immunity:industrial area
Noise emission:Group 1, Class B
General data:
Housing:terminal assembly box, rail mounting on TS-35 rail,
material: polyamide PA6.6
Connection:screw terminal
Connection cable:0.25-2.5 mm2
Dimensions:22.5 × 104 × 115 mm (width × height × depth)
Weight:0.080 kg
Protection:IP 20
Detailed information is in operating instructions. The Manufacturer maintains the right to change the technical data!


Leaflet of productOperating Instruction

Application example

DT1622 U loop powered AC voltage transmitters application example

Type selection and ordering

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