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NOVUS AUTOMATION 

 

5/7

 

It is important to notice that the transmitter accuracy is always based on the total span of the used sensor, even if a narrower range is configured. 

Example: 

The humidity sensor has a maximum range of 0 to 100% RH and an accuracy of 3% at 25 ° C (77 °F), as shown in 

Figure 12

. We can have an 

error of up to 3 % RH in any adopted range. 
This error is even in a wide range as the maximum (0 to 100% RH) or in a narrower range, such as 20 to 80 % RH. 

Serial port configuration error may occur when other software uses the same serial port. Finalize all software that uses the serial port 

specified for TxConfig before using it. 

3.1

 

RETRANSMITTING THE DEW POINT 

To use the 

RHT-XS

 and transmit the dew point instead of relative humidity, you must follow the steps below: 

 

Connect the device to the 

TxConfig

 interface and run the software. 

 

The software will recognize the 

RHT-XS

 model, read its configuration, and make it available to the user. 

 

In the "Options" menu, enter "Humidity Reading Type" (only available when an 

RHT-XS

 model is detected) and select the "Dew Point" option. At 

this point, the values of the scales will be converted to the dew point unit, i.e., degrees (Celsius or Fahrenheit, as selected). 

 

Proceed with the rest of the configuration and send the device via the "Apply" button. 

 

Figure 11 –

 

Dew point 

If the "Humidity Reading Type" option does not appear even after the 

RHT-XS

 transmitter is correctly detected, the 

TxConfig

 software version is 

probably old and does not support this feature. In this case, download and update the latest version. 

Summary of Contents for RHT-XS

Page 1: ...NOVUS AUTOMATION 1 7 RHT XS Transmitter INSTRUCTIONS MANUAL V2 0x ...

Page 2: ... module the user has access to the two fixing holes as shown in the figure below Figure 1 Electronic module dimensions Figure 2 Fixing holes The figure below shows the dimensions of the remote sensor module Figure 3 Remote sensor module dimensions mm 2 2 ELECTRICAL INSTALLATION The transmitter can be ordered as 4 20 mA current output or 0 to 10 Vdc voltage output The output signal type is defined ...

Page 3: ...plan If possible in grounded conduits The instrument supply must come from a network proper for instrumentation In control and monitoring applications it is essential to consider what may happen when any part of the system fails It is recommended to use RC FILTERS 47 Ω and 100 nF series in parallel with coils of contactors and solenoids etc CARE WITH THE SENSORS The calibration of the humidity sen...

Page 4: ...dity and temperature measurement ranges indicating a Lower Limit value and an Upper Limit value The defined range cannot exceed the Sensor Measuring shown in this same field and also cannot establish a range with a span less than the Minimum Range indicated below in this same field When the Lower Limit is set to a value higher than the Upper Limit the output current has a decreasing behavior 20 4 ...

Page 5: ... the RHT XS and transmit the dew point instead of relative humidity you must follow the steps below Connect the device to the TxConfig interface and run the software The software will recognize the RHT XS model read its configuration and make it available to the user In the Options menu enter Humidity Reading Type only available when an RHT XS model is detected and select the Dew Point option At t...

Page 6: ...solation between loops The 4 20 mA outputs are isolated from each other The 0 10 V is not isolated from each other Provides protection against power supply polarity inversion Yes Protection Electronic circuit case IP65 Sensors capsule IP40 Cable entrance Compress fitting PG7 Operating limits Sensor RHT XS See Figure 12 Electronic circuit Electronic circuit RHT XS Operating temperature 10 to 65 C 1...

Page 7: ...NOVUS AUTOMATION 7 7 5 WARRANTY Warranty conditions are available on our website www novusautomation com warranty ...

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