DIN rail tension transmitter DT1612 U

Product features

• 3 switch‑selectable measuring ranges: 0–125 VAC / 0–250 VAC / 0–450 VAC
• True RMS (TRMS) conversion
• Measurement category: CAT III
• Accuracy: 0.2%
• Output options (front‑panel switch): 0–20 mA / 4–20 mA / 0–10 V / 2–10 V
• Power supply versions: 24 VDC or 230 V AC/DC
• 12.5 mm wide, TS‑35 rail‑mount terminal housing
• Compliance: EN 60688

Product description
The DT1612 U (PS) transmitters convert the true effective value (TRMS) of an AC input into a proportional analog signal. Input ranges and output signal types are selected via front‑panel switches. The input meets CAT III requirements and can withstand a permanent override of 20% of the nominal range.

• Selectable input ranges: 0–125 VAC, 0–250 VAC, 0–450 VAC
• Two available output types (only one usable at a time): 0(4)–20 mA or 0(2)–10 V

The transmitter accuracy is 0.2% within the 40–400 Hz frequency range. Maximum settling time is 120 ms. Two power variants are available:

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

Inputs, outputs and supply are galvanically isolated in accordance with EN 61010‑1. Front indicators show operational status and error conditions. Device is a 12.5 mm wide terminal‑housing unit designed for TS‑35 rail mounting and fully complies with EN 60688.

Technical specifications

• Safety: galvanic isolation between inputs, outputs and supply (meets EN 61010‑1)
• Pollution level: 2
• Measurement category: CAT III
• Input voltage ranges: 0–125 VAC, 0–250 VAC, 0–450 VAC
• Continuous overvoltage capability: 2 × U, 500 V (max.)
• Input consumption: 0.2 VA (max.)
• Frequency range: 40–400 Hz
• Output voltage range: 0/2–10 V (max. 14 V)
• Voltage output load resistance: ≥ 500 Ω
• Output current: 0/4–20 mA (max. 24 mA)
• Termination resistance: ≤ 500 Ω
• 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 (typ.)
• Frequency dependence: 0.2% (max., 40–400 Hz)
• Supply voltage dependence: negligible
• Load dependence: negligible
• Conversion: true RMS (TRMS)
• Supply voltage: 24 VDC ±10% (DT1612 U); 230 V AC/DC ±10% (DT1612 U PS)
• Consumption: 1.2 W (DT1612 U); 1.5 VA (DT1612 U PS)
• Operating temperature: 0–50 °C (optionally −20 to +60 °C on request)
• Relative humidity: 90% max, non‑condensing
• Installation: cabinet, recommended vertical on horizontal rail
• EMC: EN 61326‑1 (emission Group 1 Class B; immunity for industrial environment)
• Housing: TS‑35 rail‑mounted terminal housing, polyamide PA6.6
• Electrical connection: screw terminals
• Wire cross‑section: 0.25–2.5 mm²
• Dimensions (W×H×D): 12.5 × 104 × 114 mm
• Weight: 0.105 kg
• Protection: IP20