NPT4 COMPACT TEMPERATURE TRANSMITTER

July 9, 2020

The NPT4 is a universal temperature transmitter designed for industrial applications. Housed in a slim 6-mm wide DIN rail mounting enclosure, it converts measurement signals from thermocouples (TC) or 2-, 3-, or 4-wire resistance temperature detectors (RTD) into standard 4-20 mA or 0(2)-10 V signals. The transmitter includes error detection for sensor breaks, short circuit protection for its input, and reverse polarity protection for its power supply. It supports a wide variety of RTDs and TCs and can be configured via a USB interface.

Functions and Features

Supports a wide variety of RTD and TC sensors
2-, 3-, or 4-wire connection capability
Analog output options: 0-5 mA, 0(4)-20 mA, 0(2)-10 V
Operating temperature range: -40 to 70°C
High reliability and accuracy
Configurable via built-in USB port

Technical Specifications

Power Supply: 24 (10-36) V DC
Max Power Consumption: 1.5 W
Galvanic Isolation: 1500 V
PC Interface: MicroUSB (USB2.0 Full Speed)
Analog Input: 1
Analog Output: 1
Output Signals: 0-5 mA, 0(4)-20 mA, 0-5 V, 0(2)-10 V
Resolution (DAC): 12 bit
Accuracy:
- TC: 0.50%
- RTD: 0.25%
Resolution (ADC): 15 bit
Ambient Temperature: -40 to 70°C
IP Code: IP20
Dimensions: 6.1 x 113 x 115 mm
Weight: Approx. 200 g

Areas of Application

The NPT4 is ideal for universal use in industrial applications, suitable for all automation systems requiring temperature sensor data conversion to standard current or voltage signals. It supports all common types of thermocouples and resistance thermometers.