Item name: CAP-3011-S1000L intelligent capacitance level meter
Product description:
This product by the national instrument explosion-proof safety supervision and inspection station (N E P S) certification. Intrinsically safe explosion-proof flag for ExiaIICT6/T5, can be used for the corresponding explosive hazardous sites. CAP-3011 smart capacitor (liquid) level meter is made by advanced RF capacitance detection technology, supplemented by industrial range measurement system temperature drift compensation technology. In addition to its traditional capacitance (liquid) has the advantages of position detection technology, but also to solve the traditional capacitive (liquid) measurement system of temperature drift meter to overcome the large, poor resolution, detection of linear defects and poor. The utility model can be applied to the measurement of the dissolved dielectric liquid level and the dry powder and particle level measurement of the measured media components in various industrial environments.
Working principle
The relationship between the changes and the (liquid) of the measuring probe capacitance changes generated is proportional to the capacitance change detection by measuring system of temperature drift compensation, through the special mode of software processing, output and material (liquid) two line change is proportional to the 4 ~ 20 m A analog current loop four P S T and group S (N O) solid state relay.
Technical characteristics
1, two wire current loop, measurement system and current loop isolation;
2, temperature drift compensation automatic measurement system;
3, simple two points calibration;
4, C E certified good electromagnetic compatibility characteristics;
5, continuous measurement of liquid level, material level, interface;
6, excellent linear measurement, smaller resolution measurement unit;
7, low power consumption, no moving parts, sophisticated process assurance;
8, high temperature, high pressure, strong corrosion;
9, Chinese operating environment, easy to set, with self diagnosis.
Technical index
Working voltage: Max: 30V
Minimum: 18V (CAP-3011-R, output 3.5mA)
15V CAP-3011-S, output 3.5mA)
10V (output 22mA)
Current loop: two wire 3.5mA ~ 22mA
Fault alarm current: 3.5mA or 22mA can be set
Isolation performance: measurement system and current loop isolation
Explosion-proof grade: ExiaIICT6 (-40 C ~ 70 C)
ExiaIICT1~5 (-40 DEG C ~ 85 DEG C)
Explosion proof parameters:
Power input:
Ui=30V, Ii=100mA, Pi=0.75W
Ci=100pF, Li=10uH
Solid state relay (group):
Ui=30V, Ii=100mA, Pi=0.75W
Ci=150pF, Li=10uH
Measurement range: 0 ~ 30 meters
Measurement period: 0.5 seconds
Resolution: 0.02mm
Temperature drift: + 0.5mm (-40 C ~ 85 C)
Working pressure: Max 6MPa
Linear deviation: + (1+0.05%FS) mm
Solid state relay (CAP-3011-R):
Configuration: four group SPST (NO) solid state relay
Load voltage: 220V AC/300V DC (non explosion proof place)
DC/AC 30V (ex site)
Load current: 100mA (-40 C ~ 40 C)
50mA (-40 C ~ 85 C)
Alarm mode: "on, off alarm" optional
Five alarm modes are optional
Delay: 1 ~ 60 seconds, can be programmed independently
Medium temperature: ~150 C -150 C
Ambient temperature: -40 DEG C ~ 85 DEG C (ExiaIICT1-T5)
-40 DEG C to 70 DEG C (ExiaIICT6)
Storage temperature: -55 C ~ 100 C
Communication protocol: HART
Protection level: IP65
Electromagnetic compatibility: through the CE certification
Associated device: CAP-3000S manipulator
Typical applications
All kinds of pressure water, soft water, water treatment system,
Liquid level measurement and control of various high pressure warm water systems.
Oil, lubricating oil level control.
Polypropylene, polystyrene, nylon and P C particle level measurement and control V.
Dry coal dust, coal ash, fossil powder and cement powder, powder level measurement and control.
Oil water boundary position measurement and control