CAPACITANCE LEVEL INDICATOR

 

Principle
Capacitance level indicator: Utilizes the capacitance formed between the sensing probe and the metallic vessel wall. A high frequency sine-wave is applied between the probe and the vessel wall.
A change of the medium level will induce a change in the current of the applied sine-wave. From Z=Y2fc, when the capacitance in the vessel increase, Impedance will decrease and current will Increase. Vice-versa, when the capacitance in the vessel is small, the impedance will increase and current will decrease accordingly.

Features
? Suitable for high temperature, high pressure and corrosive environment.
? Not affected by noisy, dusty, misty and changes In the temperature.
? No blind distance, ideal for different tanks.
? Economical for large tanks.
? 4-2OmA output compatible for most control systems and meters.

 
Capacitance type Transmitter / Indicator / Controller
Transmitter Specification
Capacitance type Transmitter / Indicator / Controller Head: : Aluminium Die casting certified by CMRS Dhanbad as per IS 2148 of group II A & group II B.
Output: 4to20 mA& 0 to3 volts
Transmitter type: 3 wire
Input power : 12 to 24 volts DC
Length : Variable
Pressure rating : Oto6 kg cm2
Temperature rating : -20 to 11J?C
 
Controller / Indicators Specification
Display: 2x4 Digits (9999) 7 Segment Led Display
Keypad: Membrane
Callibration: By Software.
Range: Programmable
Input Type: 4 to 2OmA, 0 to 10 volts DC
Decimal Point: Programmable
Accuracy: ?0.1%
Control 0/P: Relay 1/2/3/4 (5Amp. Rating)
Control Action: On/Off
Control Mode: High/Low
Enclosure: 96x96x110 or Flameproof (Optional)
Supply Voltage: 110/230 Volt AC, 50 Hz
 
Float Type / Conductive Type Level Sensor & Controller
Level Sensor Specification
Level Sensor HEAD: Aluminium Die casting weatherproof or Flameproof certified by CMRS Dhanbad as per IS 2148 of group II A & group II B.
Length: Variable
Process connection: Flanged / Screwed
Sheath material :SS 316
Float sizes: Variable (35 NB, 50 NB, 100 NB
Sensing Point :1/2/3/4
Sensing Element: Reed switch
Pressure rating: 0 to 6 kg cm2
Temperature rating: -20 to 110?C
 
Level Controller / Indicators Specification
Indication : 5 mm LED
Input Type : Reed switch I Conductive probe I Proximity switches
Control Output : Relay 1/2/3/4 (5Amp. Rating)
Control Action : On/Off
Control Mode : Relay for each level
Enclosure : 96x96x110, Din rail
Supply Voltage :110/230 Volt AC, 50 Hz
 

 
MICRO CONTROLLER BASED CIRCULAR CHART RECORDER    |    CIRCULAR CHART RECORDER    |    STRIP CHART RECORDER    |   
CAPACITANCE LEVEL TRANSMITTER    |    SIMPLE AND SMART CIRCULAR CHART RECORDER    |    MULTI CHANNEL RECORDER HMI 040
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