High measurement accuracy: plus or minus 0.25% of reading
insensitive to gas measurement
corrosion resistance, dust resistance, oxidation resistance
Output analog voltage: 0.0~+10.0VDC
Digital communication RS485 Modbus RTU
You can install 2nd road control switch
3-button intelligent operating five-LED digital display
The CFG500 series thin film capacitor vacuum gauge is a ceramic diaphragm vacuum gauge.
High-precision pressure measurement device. Ceramic is a recognized material with high elasticity, corrosion resistance, wear resistance, shock resistance and vibration resistance. The thermal stability of ceramics allows it to work in
Temperature range up to -40～125ºC, it has the advantages of high precision, high
stability and high overload resistance
CFG500 series thin film capacitor vacuum gauges are sealed with double round thin
ceramic chip into a sealed cavity with constant back pressure. Under negative vacuum
occurs on the measuring surface, the ceramic chip is deformed into a dome shape, and
distance between the front ceramic chip and the background ceramic chip. Change causes
change in capacitance between parallel electrodes. Change in distance
between electrodes is calculated by measuring the change in capacitance and vacuum
pressure is felt through the elastic deformation of the ceramic. Since the deformation recovery of the ceramic material does not have hysteresis, the ceramic film
The capacitor sensor has high stability and high accuracy. Thanks to the stability of alumina ceramic and fluorine-based seals, the ceramic film capacitor
pressure gauges have the ability to resist corrosion and oxidation. Through the use of mechanical deformation sensitive to vacuum pressure, ceramic film
The tank pressure gauge is insensitive to the gas being measured.
The corresponding mathematical relationship between the analog voltage output signal and
vacuum pressure:
P=(U/10)X PFS Here P: Vacuum pressure U: Output voltage (V) PFS: Full scale pressure of the corresponding model
For example:
Analog output voltage measured by CFG500-11 full scale vacuum gauge
1000 mbar is U = + 6.0 V DC.
Then vacuum pressure P = (6.0/10) X 1000 mbar = 600.0 mbar.
Control Switch Setting
The CFG500 has two independently configurable control point switches. It uses a solid state thyristor
status relay contacts with contact capacity 60V DC 500mA. Checkpoints can be set
using the key inputs at the top of the scale. The checkpoint is usually open. Switch point activation is defined as
state in which the relay is turned on. When the vacuum pressure is below this set value, it
displays "ON". When the vacuum pressure rises to 110% of the set value, the output signal is "OFF".
In addition, according to user requirements, when the pressure is higher than the set value
start switch or below the specified start switch, Yizhun Electronic Technology provides
host computer application software interface allowing users to select settings according to
requirements.
Key operation
There is a five-digit LED on the top of the vacuum gauge.
digital display, three key buttons, programmable zero
calibration, setting the reference point, selecting the display unit
and other functions.
How to use CFG500
CFG500 is used as an independent tool.
A regular AC\+24VDC1.0A adapter supplies power to the electrical interface DBSub-15 Pin7 or Pin11 (+24VDC), Pin5 (GND). CFG500 can be used as a portable
vacuum gauge with independent display.
