Micro-processor Based Digital Temperature Switch
Advantages General Description Micro-processor based digital temperature switch/transmitter for industrial applications Adjustable switch points allow the user to obtain various pressure settings for each of the 2 switches and span Measuring ranges from -50 to 800℃ RTD or Thermocouple input Excellent accuracy and long term stability 4 digit LED local display 2 switching points with analog output Measuring range turn down maximum 10 : 1
Applications The T85X micro-processor based digital temperature switch with analog output signal can be used for a wide range of applications in process control, automatic machinery and hydraulic or pneumatic system design. Chemical, petrochemical, food and drug process controls Hydraulic and pneumatic equipments Machine tools and automatic machinery LPG and LNG transmission control and storage tank monitoring Engine monitoring and control
T85X series micro-processor based digital temperature switch addresses all the fundamental issues of industrial temperature sensing that require highly accurate process control and monitoring. The 85X, with its built-in RTD or T/C, a 4-digit digital display, 2 switching points, 4~20mA analog output signal and a front function keys, offers the user all the advantages of a modern electronic temperature measurement. External adjustments allow the user to set the measuring ranges, switch points, dead-band and zero or span calibration, etc. It has a water resistant, aluminum die-cast housing for complete protection from harsh environments and its 4~20mA current output is ideal for remote monitoring of both primary and secondary process variables. It has been designed as an advanced device for measuring temperature in industrial applications.
Measuring ranges PT100 ohm, JIS-C-1604-1981 Thermocouple PT100 ohm, IEC, DIN, JIS-C-1604-1981 K : 0~800°C -50~500°C J : 0~500°C E : 0~250°C T : 0~250°C Output signal 2 switching points 4~20mA analog output / Optional 1~5V DC available on request 2 switching points with 4~20mA analog output Local display LED 4 digit(red or green) Electrical connection type Terminal head Excitation voltage 24V DC 12~36V DC Load resistance max@24V 500Ω at 24V Influence of excitation 0.01% FSO/V Power ripple ±500mV P-P Reverse polarity Protected Shock resistance No change in performance after 10Gs for 11ms Vibration 0.1G (1 m/s/s) maximum Response time(10~90%) ±2 milliseconds Switching current Maximum 1.2A Adjustment range Zero and span can be fully adjustable using front keys Accuracy ±0.5% FSO/ ±1 digit Non-linearity ±0.200% FSO Repeatability ±0.1% FSO/±1 digit Long term stability Better than 0.05% FSO per month Storage temperature range 0~70°C Ambient temperature limits -20~70°C Ambient humidity limits 5 to 100% R.H Thermal sensitivity shift ±0.5% FSO in reference to 35°C typical Thermal zero shift ±0.5% FSO in reference to 35°C typical Thermal hysteresis ±0.1% FSO in reference to 35°C typical Process connection PT1/2″male thread(standard) Flange & other connections available on request Electrical connection PF3/8″female(T858), PT1/2″female(T859) Process media Gases and liquids compatible with stainless steel 316 Materials wetted by process Probe : Stainless steel 316 Housing : Aluminum die-casting terminal head Enclosure rating IP65 Explosion protection Ex d IIC T6 Influence of mounting position Not critical Options Protection thermo-well Weather-proofed IP67
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