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2． Product features
* High accuracy 0.2 * display temperature by percentage bar chart
* Anti-interference from electromagnetic and radio frequency
* magnetic pen reaction design
* collection speed adjustable * “0” auto-stability technology
* signal isolation technolody * temperature compensation for cold terminal.
* Self-designed shell, anti corrosion, anti impact, and anti-vibration.
* Optional with RS485 communication and （4～20）mA electricity output.
* Never dropped-line technology, data bus can afford 250 units of RS485 devie.
* Super power management technology, battery life up to 4～8 years. Free battery replacement during the whole service life.
3 . main parameters and functions
3.1、technical parameters
1． Measuring range ：
thermocouple：E：0-750℃; K：0-1200℃；
S：0-1300℃; B：0-1600℃
Thermal resistor ： PT100：-200～500 ℃
2 . depth into：50mm～2500mm
3．Accuracy grade： 0.2、0.5
4．Display style： 5 digit , dynamic display, unit changeable .
5．Sensor insulation resistance: The insulation resistance is over 50MΩ when testing voltage 500V under room temperature.
6．Built-in power：3.6V lithium battery.
7 . outer power supply：（10~30）V DC (direct-current).
8．Servicing environment: Temperature -30℃～70 ℃ , humidity ＜90%
9．Reference temperature：20℃±2℃
10．Explosion proof：ExiaIICT6
11．Terminal connection：
without protective tube -- M20×1.5（external thread）（can be customized as per user’s request）
With protective tube -- M27×2（external thread）（can be customized as per user’s request）
12 . storage capacity : 10000 pcs of data, storage interval adjustable.
13 . Optional with relay alarm （1~2 group）.
14 . load capacity of relay alarm ：240V AC (alternating current) /1A 、30V DC/2A
temperature switch
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