Position indicator DT4227 Ptxx

temperatureresistancedigital

Product features

• Pt100 / Pt500 / Pt1000 temperature sensor or 0–500 Ω / 0–5 kΩ resistor / potentiometer inputs
• 2‑, 3‑ or 4‑wire connection; 3/4‑wire compensates lead resistance
• 5‑digit red 7‑segment LED display, 57 mm character height, adjustable brightness
• Display refresh selectable from 0.01 to 2.0 s; resolution 0.1 °C
• Dual programmable SPST (NO) limit relays; multiple limit modes
• Configuration via front‑panel pushbuttons or USB-mini with single‑screen software
• Panel instrument 288 × 96 × 78 mm, mounting depth <80 mm; IP52 front / IP20 back

Product description
The DT4227 Ptxx Process Indicator measures and displays temperature from Pt100 / Pt500 / Pt1000 sensors and the resistance or wiper position of a connected resistor/potentiometer. Two resistance ranges are available (0–500 Ω and 0–5 kΩ). The instrument accepts 2‑, 3‑ or 4‑wire connections; with 3‑ or 4‑wire the lead resistance is compensated.

The 5‑digit LED provides high visibility at 57 mm character height and adjustable brightness. Operating parameters are set via a simple front‑panel menu or through the USB‑mini port using the provided single‑screen configuration software. Configurable items include input range, signal averaging, scaling, refresh rate, brightness, limit values and limit operating modes.

Dual, freely programmable relay outputs (SPST NO) allow alarm or control functions with selectable operating modes.

Power supply options

• DT4227 Ptxx: 24 VDC ± 10%
• DT4227 Ptxx PS: 230 V AC/DC ± 10%

Technical specifications
Safety: Input, output and supply terminals are separated in accordance with MSZ EN 61010-1 requirements. Pollution degree 2, Measurement category II.

• Model: DT4227 Ptxx
• Inputs: Pt100 / Pt500 / Pt1000 sensor or resistor / potentiometer (0–500 Ω, 0–5 kΩ)
• Connection: 2 / 3 / 4‑wire
• Measuring range: -200 to +800 °C (sensor) or 0–5 kΩ (resistor)
• Resolution: 0.1 °C
• Accuracy: <0.05% (ta = 23 °C ± 2 °C)
• Measuring time options: 12 / 60 / 100 / 200 / 300 / 500 ms
• Display: 5‑digit (positive) / 4‑digit (negative), 7‑segment LED, 57 mm, red
• Display refresh: selectable 0.01 to 2.0 s; adjustable brightness
• Indicator LEDs: 2 for relay status (yellow)
• Relay outputs: 2 × SPST (NO), contact rating 30 VDC 3 A / 240 VAC 3 A
• Manual controls: 3 front‑panel pushbuttons
• Configuration: USB‑mini connector; USB 3.0 recommended; configurable via single‑screen software
• Power consumption: 3 W (24 VDC) or 5 VA / 3.5 W (230 V AC/DC)
• Dimensions: 288 × 96 × 78 mm; mounting depth <80 mm
• Connection: plug‑in screw terminal, up to 2.5 mm² cable
• Operating temperature: 0 to +60 °C (option: -20 to +60 °C)
• Storage temperature: -25 to +70 °C
• Relative humidity: up to 90% non‑condensing
• Installation: cabinet
• EMC: EN 61326-1 (industrial); Noise emission Group 1 Class B
• Protection: IP52 front, IP20 back
• Weight: 0.7 kg