CAP-3023-S320 Intelligent Capacitive Level Meter
is manufactured using advanced radio frequency capacitance detection technology, supplemented by industrial-grade temperature drift compensation technology for measurement systems, and automatic compensation technology for changes in the dielectric constant of gas (vapor) and material (liquid) phase media. The CAP-3023-S320 Intelligent Capacitive Level Meter is specifically designed and manufactured for level measurement and control applications in industrial environments where the dielectric constant of gas (vapor) phase media and material (liquid) phase media varies significantly, such as soluble media liquid level, powder, and granular material level.
Working Principle
Utilizing the relationship between material (liquid) level changes and the corresponding capacitance changes produced on the measuring probe, the detected capacitance changes are processed through measurement system temperature drift compensation and compensation for changes in the dielectric constant of material (liquid) and gas (vapor) phase media. This is then computed by dedicated pattern system software to output a two-wire 4–20 mA analog current loop and four sets of SPST (NO) solid-state relay contacts proportional to the material (liquid) level changes.
Technical Features
1. Two-wire current loop with isolation between the measurement system and the current loop;
2. Automatic compensation for temperature drift in the measurement system;
3. Simultaneous automatic compensation for changes in the dielectric constant of material (liquid) phase media and gas (vapor) phase media, eliminating the need for on-site calibration;
4. Excellent electromagnetic compatibility characteristics certified by CE;
5. Continuous measurement of liquid level and material level;
6. Superior linear measurement with smaller resolution units;
7. Low power consumption, no moving parts, and excellent craftsmanship;
8. Resistance to high temperature, high pressure, and strong corrosion;
9. Chinese operating environment for easy setup, with self-diagnostic capabilities.
CAP-3023-S320 Intelligent Capacitive Level Meter Technical Specifications
Operating Voltage: 18V (CAP-3023-R, when output is 3.5mA)
15V (CAP-3023-S, when output is 3.5mA)
10V (when output is 22mA)
Current Loop: Two-wire 3.5mA–22mA
Fault Alarm Current: 3.5mA or 22mA, configurable
Isolation Performance: Isolation between measurement system and current loop
Explosion-Proof Rating: Exia IICT6 (-40℃ to 70℃)
Exia IICT1–T5 (-40℃ to 85℃)
Explosion-Proof Parameters:
Power Input:
Ui=30V, Ii=100mA, Pi=0.75W
Ci=100pF, Li=10uH
Solid-State Relay (per group):
Ui=30V, Ii=100mA, Pi=0.75W
Ci=150pF, Li=10uH
Measurement Range: 0–8 meters
Measurement Cycle: 0.5 seconds
Resolution: 0.02mm
Temperature Drift: ±0.5mm (-40℃ to 85℃)
Operating Pressure: 6MPa Max
Linearity Deviation: ±(1+0.05%FS) mm
Solid-State Relay (CAP-3023-R):
Configuration: Four groups of SPST (NO) solid-state relays
Load Voltage: 220V AC/300V DC (non-explosion-proof environments)
30V DC/AC (explosion-proof environments)
Load Current: 100mA (-40℃ to 40℃)
50mA (-40℃ to 85℃)
Alarm Mode: "Open/Close Alarm" optional
Five independent alarm modes selectable
Delay: 1–60 seconds, independently programmable
Media Temperature: -150℃ to 150℃
Ambient Temperature: -40℃ to 85℃ (Exia IICT1–T5)
-40℃ to 70℃ (Exia IICT6)
Storage Temperature: -55℃ to 100℃
Communication Protocol: HART
Protection Rating: IP65
Electromagnetic Compatibility: CE Certified
Associated Equipment: CAP-3000S Handheld Operator
CAP-3023-S320 Intelligent Capacitive Level Meter Typical Applications
Level measurement and control for various atmospheric and low-pressure boilers, water heaters, tanks, and evaporators.
Liquid CO2 level measurement and control.
Liquid polypropylene and polyethylene level measurement and control.