How to interpret article codes of Sentera sensors?
The Sentera article codes follow a certain logic. Every character in the code stands for a characteristic of the product. The way you can interpret the code, however, varies between product types. For the most common Sentera sensors, the characters denote the mounting location, the functionality, the measured parameters, and the supply voltage.
Mounting location
The first character in the article code denotes the mounting location. If the code starts with the letter R, it is surface mountable in a room. If the code starts with an F, the sensor can be mounted in an indoor environment and is suitable for either surface or flush mounting. If the code starts with a D, the sensor measures something in or on a duct. Lastly, if a sensor starts with an O, it is meant for mounting in outdoor or other hard environments. The mounting location ties into the IP rating.
A few examples:
RSCOH-R: Room mounting
ODCOM-R: Outdoor mounting
FCTH8: Flush mounting
DSTHM-2: duct mounting
Functionality
The second character stands for the functionality. A sensor either measures or measures and controls. This is the second character in the code. It is either an S or a C. S stands for a sensor that only measures, and a C stands for a sensor that also controls. In our outdoor sensors, a sensor that only measures will have a D instead of an S. You can find a more detailed functionality breakdown here.
A few examples:
RSCOH-R: Sensor that measures
FCTH8: Sensor that also controls
ODCOM-R: Outdoor sensor that measures
OCCOM-R: Outdoor sensor that also controls
Measured parameters
The third and fourth characters stand for the parameters that the sensor measures. If these characters are TH, the sensor only measures temperature and relative humidity. Many Sentera sensors measure these two parameters. The second possibility is the combination MF. These sensors can measure CO2 in addition to temperature and relative humidity. The third combination is VC. These sensors measure TVOC, temperature and relative humidity. And the last possibility is CO. These sensors register CO, NO2, temperature and relative humidity.
A few examples:
RSCOH-R: Measures CO, NO2, temperature and relative humidity.
FCMF8-R: Measures CO2, temperature and relative humidity.
FCTH8: Measures temperature and relative humidity.
DSVCM-R: Measures TVOC, temperature and relative humidity.
Supply voltage
This is always the fifth character and often the last character. If the fifth character is –F or –H, it has a 4-wire connection. If the fifth character is –G or –8, it has a 3-wire connection. If the fifth character is –M, it is Power over Modbus supplied and has only one wire connection. Please note that a –B may sometimes be added after these letters to denote an audible alarm module.
A few examples:
FCMF8-R: 3-wire connection
FCMFF-R: 4-wire connection
RSMFHB-2R: 4-wire connection, audible alarm module
RSMFGB-2R: 3-wire connection, audible alarm module
RSMFMB-2R: Power over Modbus, audible alarm module
Exceptions
There are a few sensors that do not follow these rules, as they are optimized for niche uses.
These sensors are
SPRKM-R: measures temperature, relative humidity, CO and LPG outdoors.
ODMHM-R: measures temperature, relative humidity and CO2 in harsh environments and is corrosion protected.
Other sensor types
There are other sensors with a different working principle than the sensors described above. These include our temperature sensors, pressure relays, and differential pressure sensors and controllers.