Digital current transmitter DT1622 Ix

DIN railACthrough-hole

Product features

• 3 versions, 6 measuring ranges:
• 0-1 AAC / 0-5 AAC *
• 0-10 AAC / 0-20 AAC *
• 0-40 AAC / 0-60 AAC *
• * switch selectable
• True RMS converter
• CAT III measurement category
• 4-20 mA passive output
• 0.5% accuracy
• 12-33 VDC, loop-powered
• 17.5 mm wide, TS-35 rail-mountable terminal housing
• complies with EN 60688

Product description
The DT1622 … AC current transmitters produce a 4–20 mA output signal proportional to the true effective value (TRMS) of the input signal for the processing unit.
The device is a passive two-wire transmitter, powered by the 4–20 mA current loop.
The supply voltage range: 12-33 VDC.
The transmitter inputs are separated from the network to be measured by a broadband measuring transformer. The inputs comply with the CAT III measurement category requirements.
The devices can be ordered in three versions with 6 measuring ranges, according to the type table above. Within the given type, the measuring range can be selected with the front-panel “Hi-Lo” switch. In the 5/1 AAC input version, the measuring range can be expanded with an external current transformer with a ratio of x/5 or x/1.
The inputs can be permanently overdriven up to twice the nominal measuring range.
For the I5/I1 measuring range version, the current to be measured is connected via terminals; for higher measuring ranges, the current-carrying wire must be feed-through the hole on the side of the box.
A green indicator on the front panel indicates the operating status of the device, a continuous light indicates correct operation, a flashing light indicates an error condition.
The device is designed as a 17.5 mm wide, TS-35 rail-mountable terminal housing.
The transmitters fully comply with the requirements of the EN 60688 standard.

Technical specifications
Safety data: The input and output connection points of the transmitters are separated from each other, the separation complies with the
requirements of the EN 61010-1 taking into account the following.

• Pollution degree: 2
• Measurement category: CAT III

Input characteristics:

• Input current: see table on the first page
• Conversion characteristic: true RMS value
• Continuous overcurrent capability: 2 × I
• Short-term (1 sec.) overcurrent capability: 20 × I
• Input consumption: 0.25 VA (max.)
• Frequency range: 40–400 Hz

Output characteristics:

• Output current: 4–20 mA, passive
• Terminal resistance: 500 ohm (max.)
• Overvoltage protection: 35 V (limitier)
• Overcurrent protection: 24 mA (limitier)
• Settling time: 500 ms (10–90%)
• Output signal error: 0.2% (max.)
• Temperature dependence: 25 ppm / °C (0–60 °C)
• Frequency dependence: 0.3% max. (40–400 Hz)
• Supply voltage dependence negligible
• Load dependence negligible

Power supply:

• Supply voltage: 12 – 33 VDC

Environmental conditions:

• Operating temperature range: 0–60 °C (-20–60 °C, on special order)
• Relative humidity: 90% (max., non condensing)
• Installation location: instrument cabinet
• Installation: vertically (mounted on a 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 (output): screw clamp terminal
• Electrical connection (input): srew clamp terminal up to 5 AAC-ig with feed-through > 5 AAC
• Connecting wire cross-section: 0.25–2.5 mm2
• With feed-through: 10 mm2 ; (≤ 40 AAC); 16 mm2 (> 40 AAC)
• Dimensions: 17.5 × 104 × 115 mm (width × height × depth)
• Weight: 0.100...0.125 kg
• Protection: IP20

Further technical data in the operating instructions. The manufacturer reserves the right to change individual technical data!