Tengcon Industrial Modbus RTU STC-106

1.Integrated I/O module 2.Temperature Range -20~70 degree celsius 3.CE&FCC Certification, IEC III rank 4.Customizable,OEM&ODM Introduction1.Specification

STC-106 is a Remote Terminal Unit for control and date acquisiton.It was Widely used in monitoring system or computer room where had many thermal resistance. STC-106 adopted our unique bridge circuit measurements technology.no temperature drift, no influence of lead resistance, stronger anti-interference.

The bridge circuit is isolate from measurement circuit completely. STC-106 have many other advantages.

 

2.Parameters

2.1.RTD singal input

8 Channel RTD signal insulate Input

3 wire method or2 wire method

Measurement range: –200°C~~650°C

Measuring resolution 0.1 °C

Precision 0.5% ±1.0 °C

Temperature stability >100 PPMM

Isolation voltage>= 1500 V

2.2.Communication interface

2 Channel port RS485 or RS232

Max baudrate 115200bps

Modbus RTU

2.3.Power Supply

DC 9-36V±10% Ripple<=150mVpp

AC 110V~265V

Power Consumpation<=1W 

3.Operation Condition

Operating temperature: -20°C~ 70°C

Storage   temperature: -40~85°C

Atmospheric:       86~108Kpa

Operating humidity:   <85% RH(20±5°C)    No corrosive gas or heavy dust

Weight:   300g

Input/Output 5.08mm inteval terminals

Mounting: DIN rail or screw root

Size:    125×110×40 mm

4.Thermal Resistance

PT-100 is normally used in RTD(-200°C~650°C), its a temperature sensing element,basically called as platinum 100, for positive temperature co-efficient.if temperature increases resistance also increases, the increase of resistance is due to the applide voltage passing through the sensing element, it has resistance,for 0 degree celcius 100 ohms.The principle of operation is to measure the resistance of a platinum element. The most common type (PT100) has a resistance of 100 ohms at 0°C and 138.5 ohms at 100 °C. There are also PT1000 sensors that have a resistance of 1000 ohms at 0 °C.

       The relationship between temperature and resistance is approximately linear over a small 

 temperature range: for example, if you assume that it is linear over the 0 to 100 °C range, the error at 50 °C

 is 0.4 °C. For precision measurement, it is necessary to linearise the resistance to give an accurate

 temperature. The most recent definition of the relationship between resistance and temperature is

 International Temperature Standard 90 (ITS-90). For a PT100 sensor, a 1°C temperature change will cause

 a 0.385 ohm change in resistance.

Application & Certification