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Temmeter - Model 485 -Temperature Sensor Convertor for Photovoltaics
Temmeter-485 is a high resistance temperature sensor convertor for photovolatic modules (solar panel), based on a PT100 temperature sensor. Both converters are a good complement as where thermopile pyranometers are used; They do not have a socket for the module’s temperature sensors, so they are a perfect complement as resistive temperature sensor convertor for those who use a thermopile pyranometer.
Temperature sensor Convertor for Photovolatics – Temmeter 485 Temmeter-485 (TM3-485 PRO ® & TM4-485) are 2 converters from temperature sensor to RS-485 Modbus output.
Note:Solar modules exposed to high temperature produce less power than same module at 25°C. Correct Performance Ratio (P/R) calculation requires the correct formula. In Southern Europe, PV module temperatures can reach 85°C during the Summer; in those cases the losses of output power are lower of about 25%.
Soluzione Solare temperature sensor convertors are designed for outdoor use and rapid response to temperature variations (from several milliseconds to a few seconds) in order to guarantee precise Performance Ratio calculations.
- TM4-485 differs from the TM3-485 model for the accuracy.
- TM3-485 convert values read from any PT 100/PT1000 to RS485 Modbus through a dedicated 16 bit converter and precision is ± 0.2° C.
- TM4-485 convert values read from a Silicon sensor encapsuled and distributed by us to RS485 modbus. Precision is ± 2.2° C.
Both models have 2 input channel for temperature measurements. Those 2 channels can be used for 2 points of module temperature or 1 module temperature and 1 ambient temperature.
Note:For identification of the probes TM4-485 is labelled withLM61and TM3-485 is labelled withPT100.
If the connection is interchanged the temperature sensor convertor will not function.
- Faster response to changes in temperature(< 5 seconds for increasing temperature; < 25 seconds for decreasing temperature);
- Strong adhesionto surfaces with low surface tension such as Tedlar;
- Measurement precision above the required standardsof a PT100 class A sensor;
- Shielded cable.
- Encapsulation: Resin conformal coating
- Casing: IP67 – Coated grey Aluminium
- Connector: INPUT: M 12 – 8 Pin FEMALE
- OUTPUT: M8 4 Pin MALE
- Dimensions: 97x64x34 mm
- Operating temperature: -40 ÷ 125 °C toll. ± 0.2° C
- Box Working temperature: (-30 ÷ +85 °C)
- Operating humidity: 0 ÷ 95% RH
- Weight: 200 gr
** when ordering, specify the version