Association between 13 RMOX raw values and heating temperature

Question

Hi all, 
 I am using the 13 RMOX raw values taken from ZMOD4410 sensor to develop a custom algorithm. So, I would like to know the association between the 13 raw RMOX values and the associated heating temperature. 
 Where can I found this information? 
 
 Best Regards, 
 David

IK_Renesas · Accepted Answer

Hello David, 
 Apologies for the delay. 
 You can find the different libraries we provide for the different operation modes and algorithms in the webpage of ZMOD4410 sensor. ( https://www.renesas.com/us/en/products/sensor-products/environmental-sensors/metal-oxide-gas-sensors/zmod4410-firmware-configurable-indoor-air-quality-iaq-sensor-embedded-artificial-intelligence-ai#design_development ) 
 For ULP this is the library: 
 
 You can download it here: ( https://www.renesas.com/us/en/document/swo/zmod4410-iaq-and-tvoc-firmware-ultra-low-power-ulp?r=454426 ) and we provide precompiled libraries for ULP operation for many different target MCUs and toolchains. 
 Current version of this library as mentioned in the release note of the ULP operation mode library is 1.3.0: 
 
 The sampling rate is 90 s for this operation mode: 
 
 An active measurement is indicated when the heater temperature is greater than zero. 
 Now regarding the heater temperature depending on the rmox value during active phase, yes your assumption is correct: 
 
 rmox[0]-> heater temp is 100 Celsius degrees. 
 rmox[1]-> heater temp is 150 Celsius degrees. 
 rmox[2]-> heater temp is 200 Celsius degrees 
 rmox[3]-> heater temp is 250 Celsius degrees 
 rmox[4]-> heater temp is 300 Celsius degrees 
 rmox[5]-> heater temp is 350 Celsius degrees 
 rmox[6]-> heater temp is 400 Celsius degrees 
 rmox[7]-> heater temp is 350 Celsius degrees 
 rmox[8]-> heater temp is 300 Celsius degrees 
 rmox[9]-> heater temp is 250 Celsius degrees 
 rmox[10]-> heater temp is 200 Celsius degrees 
 rmox[11]-> heater temp is 150 Celsius degrees 
 rmox[12]-> heater temp is 100 Celsius degrees 
 
 Generally as mentioned in the datasheet the maximum temp of the heat sensor element can reach up to 500 Celsius degrees. 
 
 Hope it helps. 
 Best Regards, 
 IK_Renesas

Association between 13 RMOX raw values and heating temperature

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