Capacitance level meters

CGL-W series

Compatible with battery sized ultra-small tanks High-sensitivity level meter with temperature correction function and contact output

It is a capacitance type level meter that can measure with high accuracy even in a battery / test tube size ultra-small container.
4 contact output are possible.
With a temperature correction function, the capacitance values is corrected.
*Sensor electrodes can be customized.
*Can be used with simple initial settings, using pushbuttons.

We have a lineup of CGL-W type dedicated to level measurement and WGL-W type compatible with moisture meters and analyzers.

Features, keys |Applications|Usage, use examples|Standard specifications

Features, keys

Achieves ultra-high sensitivity and high accuracy even in a small size
High accuracy (± 1% accuracy) is achieved even in short size (height 50-60 mm) level measurement.
The separation amplifier is also ultra-compact and can be easily incorporated into a small device.
Displaying measured values in real time with a display
The display is mounted on a separating amplifier.
The current measured value (% display) and capacitance value (pF display) are displayed in real time.
Simple initial setting
It is easy to make the zero and span setting, using pushbuttons.
BNC connecter make it easy to connect and disconnect the sensor and cable
Reduces connection mistakes between the sensor electrode cable and the separating amplifier.
4 contact output settings
4 contact outputs are possible: HH, H, L, LL.
Any 4-point position and alarm action direction can also be changed.
Temperature input (correction) function
A temperature sensor (sold separately) can be added for temperature correction.
Correct the capacitance value from the temperature sensor information.

Applications

In addition to measuring the remaining amount, it is possible to detect points such as upper and lower limits. It is possible to output 4 contacts of HH, H, L, and LL at any position. The alarm action direction (upward ON, downward ON, etc.) can also be changed.

Usages, use examples

Measure liquid level, powder and granular material level in various tanks. Measure material interface of liquids.
Conductive or insulating liquids, insulating liquids with a small dielectric constant, and semi-conductive liquids.
Ex.: Various oil, various chemical solutions (acids, alkalis), various washing liquids, tap water, pure water, distilled water, alcohol, etc.
Small unit tanks, small container.

Standard specifications

Amplifier

Input power source		24V DC +-10%
Power consumption		1.5W or less
Ambient operating temperature		-10℃～+50℃ (without condensation)
Current output		Current output 4 to 20mA/DC (load resistance 500Ω or less)
Contact output		4 points (operation direction changeable) + 1 point (abnormality alarm) 1a contact DC: 350V, AC: 200V (50mA)
Capacitance	Measurement range	0.1 to 110.0pF
Capacitance	Measurement accurancy	±1% or ±1mm, whichever is greater *1
Temperature measurement	Measurement range	-200.0℃ to 200.0℃　*2
Temperature measurement	Measurement accurancy	±4.0℃
Response speed		Within 2 seconds (90% arrival time)
Paint color		Semi gloss, Munsell N3.0
Protection level		IP20
Installation		M4 screws 2 pcs (mounting pitch 136mm) *3
Dedicated cable length		Maximum 10m

*1 The overall accuracy of the device may be outside this range depending on the electrode specifications and specification conditions.
*2 Depends on the allowable temperature of the sensor part.
*3 DIN rail support is available as an option.

Sensor

Materials	SUS304 (can be altered to another material on request)
Connection	R1/4 (can be altered to another material on request)
Allowable temperature	-10 to +80 degrees (without condensation)
Allowable pressure	2MPa (seal part) (connection part depends on each standard)

* Sensor part can be customized.

Temperature sensor (sheathed resistance thermometer)

RTD	Pt100

* Please contact our sales department for other special specifications you may need.

Please feel free to inquire us