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IP67 IP68 Waterproof Temperature Sensor TPE Overmolding NTC
Thermistor Temperature Sensor
NTC temperature sensor is a commonly used temperature measuring
instrument. It is generally composed of NTC thermistor, probe
(metal shell or plastic shell, etc., extension lead, and metal
terminal or connector). Its main feature is that the temperature
within the working temperature range- The voltage relationship is a
straight line. This second development of temperature measurement
and temperature control circuit design can complete the temperature
measurement or temperature control circuit design without
linearization processing, simplifying instrument design and
debugging.
Features
1. Wide operating temperature range, good stability and
reliability.
2. Easy to installation and manipulation as the sealing can be done
according to environment and conditions there it is applied by
customer.
3. Accurate testing can reflect temperature change precisely.
4. Insulating resistance(MΩ): over 100MΩ at DC500 V
5. Working temperature range(°C): -50 to +150
6. Dissipation factor(mw/°C): 1-2 (in still air)
7. Thermal time constant(s): within 10-20 sec (in air)
Product application scope:
temperature control, warm hand treasure, temperature control
instrument, indoor constant temperature, heating fan, waiting for
home appliances and constant temperature measurement.
Regarding the production of goods: According to the requirements
specifications, the graph can be customized, and the parameters,
appearance, and length are customized.
Temperature sensor used for temperature measurement, sensing and
control in:
• Water boilers
• Heating systems
• Chiller systems
• Water and used water systems
• Water and oil tanks
• Consumer appliances , Coffee machines
• Industrial appliances
• Solar heating systems
Type | NTC(thermistor) Temperature Sensor |
Temperature range | -50℃ ~ +300℃;Customized |
Accurancy | 1%;5%;10% |
RT(25℃) | 1K;2K;2.2k;2.7k;3K;5K;7K;8K;12K;15K;20K;25K;30K;40K;47K;50K;60K;70K;100K;200K;230K;250K;470K;500K;1000K;Customized |
B value | 3274;3435;3470;3928;3950;3977;4100;4200;4400;Customized |
Probe Material | Stainless steel SS304; aluminum;copper;plastic;epoxy;glass |
Installation | Flanged;Surface;Threaded;Plastic;Straight;Film;Customized |
Wire Material | Heat shrinkable tube;PVC tube;glass fiber tube; teflon tube |
Connector | Molex;JST;DuPont;CWB;CJT;U type;Customized |
Waterproof | IP67;IP68 |
Advantages and characteristics of Auto Temperature Sensor
Reliability Test
Test Item | Test Standard | Test method | Performance requirements |
Zero Power Resistance | IEC 60539-1 | Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance | Resistance tol ±1% |
B value | IEC60539-1 | Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value | Resistance tol ±1% |
Free fall | IEC60068-2-32 | Fall height: 1.5±0.1m,Surface: Cement , 1 time | No obvious damage, R25 △R/R≤±1% |
Insulation | IEC60539-1 | 500V pressure on insulation shell test insulation resistance | >500MOhm |
Withstand voltage | IEC60539-1 | Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec | No obvious damage |
Tension | IEC60068-2-21 | Pull uniform speed at the end, F>4.0KG(requested by customer) | No obvious damage, R25 △R/R≤±1% |
Vibration | Q/HBm 108-94 | Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction | No obvious damage, R25 △R/R≤±1% |
Steady humidity and heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour | No obvious damage, R25 △R/R≤±1% |
Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time | <10 sec |
High temperature storage | IEC60068-2-2 | Temp:125℃±5℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
Cold and thermal shock | IEC60068-2-14 | -40℃~+125℃ T1:30min Cycle time:1000 | No obvious damage, R25 △R/R≤±1% |
Knock experiment | IEC60068-2-77 | Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery
time: 2 Hour | No obvious damage, R25 △R/R≤±1% |
Low temperature storage | IEC60068-2-1 | Temp: 40±2℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
Salt spray | IEC60068-2-11 | Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand | No obvious damage, R25 △R/R≤±1% |