WESDAC D20 C Gas turbine module

Diagnostics: The module PCDx.W745 provides powerful sensor diagnostics: ● Overrange detection ● Underrange detection ● Line break detection ● Short circuit detection for RTD’s Galvanic separation: The module has galvanic separation between Saia PCD® ground and the sensor interface (500 VDC).Typical areas of use ● Temperature regulation / supervision in industrial applications ● Measurement of very high temperatures using thermocouples All specifications at 25°C ambient temperature, unless otherwise noted.¹) For thermocouples, the full measurement range is offered. The specifications of resolution and accuracy are given for temperatures higher than -150°C. For lower temperatures than -150°C, the characteristics of thermocouples become worse. If thermocouples are used in this very low temperature range, the tolerance should be calculated using the tolerance specifications for the ±75 mV range and the thermocouple characteristic. ²) Measuring error in % and temperature coefficient specifications made for the measurement ranges ±75 mV, 600 Ω, 5000 Ω. ³) Technical data of the internal cold junction are specified in the following section.

Function and application 

The PCDx.W745 module is used to measure temperatures in precision and wide temperature range applications. On the module, a micro controller controls the acquisition of the input signals. Depending the configuration the controller adjusts the measurement amplifier, multiplexes the current sources to the sensors, and controls the sampling of the input channels. The linearization curves for the supported temperature sensors are stored on the module. Therefore, the CPU can directly read temperature values from the module. The powerful sensor diagnostics allows to detect wiring errors. So the module indicates when a sensor line is broken or not connected. Further, over range and underrange diagnostics indicates misuse of the chosen sensor type.

Main characteristics

 ● High precision temperature acquisition system ● Galvanic separation between Saia PCD® ground and input interface ● The module supports a big number of sensor types ● Thermocouples and RTDs on the same module ● Four input channels, software – configurable ● Built – in reference junction for thermocouples ● Possibility to use external reference junction ● RTD measurement techniques: 2- ,3-, 4- Wire connection ● 4 input clamps per channel

The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.