BM BJONG - Built-In Pressure Sensor

Bjong – User Manual – V1.0 - pg.51
The signal quality is represented by numbers from 0.00 to 99.99. A value of 0.00 indicates a bad signal,
while 99.9 indicates an excellent signal. Under normal conditions the quality value should be higher than
60.0.
During installation, take care the Tom Tos is close to 100% and the quality is as high as possible.
12.2 Built-in pressure sensor
Bjong could be supplied with a built-in pressure sensor. Here are different pressure sensors
available, depending on ranges (from 6 to 60 bar) and on installation needs. It is also
possible to use external pressure sensors to be connected to analog inputs.
The reading of a correct pressure value is ensured by the presence of a hole for barometric compensation.
This hole is visible in the lower part of the instrument, identified by the wording VENT.
Unscrewing the nut gives access to the special membrane which allows the instrument to maintain the
declared IP protection degree. The membrane does not require particular maintenance and can be easily
replaced.
It is possible to enable or disable the pressure sensor.
It is not possible to change the sensor type (because it is
built-in).
To avoid useful power consumption, deflag “Enable pressure sensor” if it is not necessary.
After making the configuration, make sure to log the variables of interest correctly in the
appropriate section.
Do not obstruct the compensation hole for any reason. In particular severe conditions of use
(such as the presence of mud) it is advisable to provide for an appropriate periodic
replacement of the membrane.
It is possible to request replacement membranes from the assistance service of B.M.
Tecnologie Industriali.