OWTP Temperature Signal Converter

Catalog

OWTP's high-precision temperature signal converters can convert various thermocouple or RTD (Resistor-to-Diode) signals into a standard 4-20 mA current output. Featuring precise linearization, cold junction compensation, and high interference immunity, it can operate stably in harsh environments. Its compact size and easy installation make it particularly suitable for temperature monitoring and process control systems in various temperature sensor heads or mechanical equipment.

Features

• High-brightness LED display screen
• The input range (-1999 to 9999) / display unit (°C, °F) can be arbitrarily configured.
• Two-stage independent alarm output
• It has an RS-485 communication interface with a communication rate of up to 9600 bps.
• Strong output load capacity (RL(max.) = (Vsupply ~ 9V) / 20mA, up to 750 ohms at 24VDC)
• Low price and high reliability
• Accuracy: RTD: ±0.1%FS, T/C: 0.2%FS±0.5℃ Cold joint compensation

Model Specifications: OWTP-Code 1-Code 2-Code 3

Specifications

• Accuracy: ±0.1% full scale (PT100), ±0.2% full scale ±0.5°C cold junction compensation (T/C)
• Display: High-brightness red LED, character height 10.16 mm (0.4'')
• Display range: -1999 ~ 9999
• Sampling time: 16 times/second
• Output alarm: doFL or -doFL
• Sensor disconnection: Displays "OPEn"
• Parameter setting method: Key input setting
• Power input: DC 15 ~ 30V
• Optical coupling output: DC 30 V; 30 mA (maximum)
• Alarm action direction: "≧(Hi) action" or "＜(Lo) action"
• Alarm delay time: 0 ~ 99 seconds
• Communication method and protocol: RS-485 Modbus RTU mode
• Communication transmission rate: 9600 / 4800 / 2400 bps
• Temperature coefficient: 100 ppm/°C (0 ~ 60°C)
• Operating environment temperature and humidity: 0 ~ 60°C; 20 ~ 90% RH (non-condensing)
• Storage environment temperature and humidity: -10 ~ 70°C; 20 ~ 90% RH (non-condensing)
• Insulation withstand voltage: 1.5 kVac/min (input to output to power supply)
• Shell material: ABS