【Product Introduction】

First display control instrument adopts microprocessor design, with adjustment and digital filtering functions, which can reduce the error of sensors and transmitters, improve the measurement and control accuracy of the system, and can choose multiple control alarm outputs. It has a delayed alarm function to prevent false alarms caused by interference and other reasons. The display mode of the controller: digital tube display (LED), liquid crystal display (LCD), and light column display can be flexibly selected. The circuit is carefully designed for radio frequency, electromagnetic interference, and surge voltage working conditions, in line with IEC and CE (EMC) standards; it is fully compatible with First series sensor products.

【Product Features】

● Suitable for measurement and control of various temperatures, pressures, liquid levels, lengths, etc.
● Measurement value zero migration, gain amplification, and output zero migration functions
● Input signal type and alarm mode can be set
● Support multi-machine network communication, communication protocol can be freely set
● Fully digital cold end compensation, optional internal and external cold end compensation of the instrument

【Application Scope】

● Unattended data recording
● Experimental data testing
● Daily data measurement records

【Technical indicators】

◇ Input specifications (one instrument is compatible):

Thermocouples: B, S, K, E, J, T, WRe, etc.

Thermal resistance: Pt100, Cu50 and other remote pressure resistance

Linear voltage: 0~5V, 1~5V, 0~10V, 1~10V, etc.---input impedance ≥250Ω

Linear current: 0~10mA, 0~20mA, 4~20mA, etc.---input impedance≤250Ω

Linear resistance: 0~400Q (can be used to measure remote resistance pressure gauge)

◇ Measurement range: -1999~1999 words

◇ Measurement accuracy: 0.5%FS±1 word

◇ Transmission output: analog output DC0~10mA (load capacity≤750Ω)

DC4~20mA(load capacity≤500Ω)

DC0~5V(load capacity≤250Ω)     DC1~5V(load capacity≤250Q)

Switch output, relay control output---relay ON/OFF with hysteresis

Contact capacity: AC220V/3A; DC24V/6A (resistive load)

Thyristor control input---SCR (thyristor zero-crossing trigger pulse) output, which can trigger thyristor

Solid State Relay Output---SSR (Solid State Relay Control Signal) output

◇ Use environment: ambient temperature 0~50℃

Relative humidity≤85RH

Avoid strong corrosive gases

◇ Supply voltage: AC220V+10-15% (50Hz±2Hz linear power supply)

◇ Power consumption: ≤5W

◇ Instrument size: 96×48mm (width×height); opening size: 92×45mm

【Product Features】

● Suitable for measurement and control of various temperatures, pressures, liquid levels, lengths, etc.
● Measurement value zero migration, gain amplification, and output zero migration functions
● Input signal type and alarm mode can be set
● Support multi-machine network communication, communication protocol can be freely set
● Fully digital cold end compensation, optional internal and external cold end compensation of the instrument

【Application Scope】

● Unattended data recording
● Experimental data testing
● Daily data measurement records