Capacitance Measuring Instrument

capacitance is formed between the probe and the vessel wall .As the level of the measuring medium rises or falls capacitance between the probe and vessel wall changes proportionately. A high frequency sine wave is applied between the probe and tank wall. A change of medium level will induce a change in the current of the applied sine wave. From when the capacitance in the vessel increase, impedance will decrease and current will increase and vice-versa. (Z=Resistance, C=Capacitance, F= Frequency) Head mounted electronics converts the capacitance variation to 4-20mA signal for long distance transmission. It is provided with trimpots for SPAN and ZERO adjustments. With no moving parts it is free from wear and tear, rugged and robust in construction. No dead zone like float based instruments. It must be ensured that the probe is parallel to the tank wall throughout it's length. Technical Specification kabir make Capacitance type 3 wire Level transmitter Model (CLT-1) with non insulated probes for non-conductive liquids or PTFE Teflon insulated probes for conductive liquids.Frequecy of operation5 to15kHz.Probe MaterialStainless Steel / Teflon insulated 10/12/16 mm rod upto Max 3 Metre lengthProcess connection3/4",1",1.1/2" BSP(M) or 1 "ASA 150 lbs flanged but thickness 12mm (or as per customer specification)Power supply24VDCOutput 4 to 20 mA.(non-isolated)Span & Zero adjustmentTrim potsMax.Working Pressure10kg/sq.cmMax.Working Temp.150deg.CAccuracy 0.5%, 1% or 2%EnclosureCast aluminium weather proof with PG9 cable gland or Flame proof (IS2148-2004,Gr II A and B gases)Cable Size3 core, 0.75 sq.mm screened PVC cable. While sending enquiries for capacitance type level transmitters, please furnish following informations to enable us to submit a suitable offer:Name of service Medium/LiquidDielectric constant of the medium.Operating Temperature and pressure. Does the temperature vary? If so how much?Nature of liquid - Foaming, Viscous, Sticky etc.If agitation is involved whether sufficient space is available for probe between agitator and tank wall to avoid damage.Material of tank - Metallic or Non- MetallicIf mounted on nozzle, height of nozzle, with tank dimensions and drawings.

CAPO 2.5 Capacitance And Dissipation Factor Measurement

Dependability, strength, durability, ruggedness are the keywords when it comes to the use of level instruments for continuous monitoring in difficult environment conditions. The ILC... series stands up to the requirements of a tough continuous level detector and offers the following benefits:Level measurement is displayed on a built-in Digital Panel Meter having 0.5 inch high digits for better visibility. Standard output signal of 0-5 V DC and 0/4-20 mA DC proportional to 0-100% level change available for remote indicators and recorders. 'In Situ' range selection and calibration possible from evaluation unit. Probe head accessibility not required. Measuring system has no moving parts so does not suffer any mechanical wear and tear and hence is maintenance free. Economical to install, since ordinary 3-core cable is used for interconnection. Flame-proof probe suitable for hazardous areas as per IS-2148 for group IIA and IIB is available.

The System offers a unique and superior testing methodology because it allows you to monitor partial discharge activity in both bushings and transformer using the same sensor set. Like power factor and capacitance changes, partial discharges are also indicative of insulation breakdown. Its houses six BNC connectors one for each phase of each winding which allow connection to our Partial Discharge Analyzer . Online periodic monitoring of partial discharge (arcing or sparking) can help provide a root-cause analysis of internal gassing or other discharge activity related to the winding insulation, internal connections, bushings, or magnetic core iron.

Capacitance And Dissipation Factor

Measurement of circuit capacitancesDielectric measurements10-5 pF to 11.1 F, 2- or 3- terminal0.01% accuracy, 1 ppm resolutionLever balance, in-line readoutReads dissipation factor or conductance

Pointek CLS200 is a versatile inverse frequency shift capacitance level switch with optional rod/cable choices and configurable output, ideal for detection of liquids, solids, slurries, foam and interfaces. The digital version (with PROFIBUS PA) includes a display and provides additional diagnostic features. The Pointek CLS200 is offered in standard and digital versions.The standard version has 3 LED indicators with basic relay and solid-state switch alarms. The digital version provides an integral LCD display for standalone use, and also provides PROFIBUS PA communication (Profile version 3.0, Class B) for connection to a network. The power supply is galvanically isolated and accepts a wide range of voltages (12 to 250 V AC/DC for standard version and 12 to 30 V DC for digital version). The stainless steel and PPS (PVDF optional) materials used in the probe construction provide a temperature rating up to +125 C (+257 F) on the process wetted portion of the probe. The switch responds to any material with a dielectric constant of 1.5 or more by detecting a change in oscillating frequency, and it can be set to detect before contact or on contact with the probe.The CLS200 operates independently of the tank wall or pipe so it does not require an external reference electrode for level detection in a non-conductive vessel such as concrete or plastic. Key Applications: liquids, slurries, powders, granules, pressurized applications, hazardous areas.

Continuous level measurement and point level detection in liquids and solids with capacitance probes Capacitance level measurement with Liquicap is a simple and cost-effective solution which offers a wealth of possibilities for level monitoring in liquids. Particularly in small tanks and build-up forming media. Point level detection works with Liquicap, Liquipoint, Minicap or Solicap capacitance level switches also in applications involving aggressive media and heavy build-up in liquids and solids. Check out the broad range of capacitance level sensors and click on the button below. Capacitance level measurement Our product finder helps you to search for suitable measuring devices, software or system components via product characteristics. Applicator leads you through an individual product selection via application parameters. Capacitance level sensors are a proved, as well as cost-effective solution for level measurement and point level detection in liquids and bulk solids. Various transmitters for continuous level measurement and switches for point level detection are available. The measurement of interface is also possible. The measuring principle is proven in millions of applications. Capacitance measurement: Measuring Principle The principle of capacitive level measurement is based on the capacitance change of a capacitor. The probe and the tank wall form a capacitor whose capacitance is dependent on the amount of product in the tank: An empty tank has a lower, a filled tank a higher capacitance. Benefits Proven and tested measuring principle - robust and safe Universally adaptable probe Reliable operation also in strong build-up formation and viscous media Easy commissioning

To suit the variegated requirements of our customers, we are offering qualitative Capacitance Level Indicator. Our offered products are manufactured using the finest quality raw material and by employing modern methods and latest technology by our vendors. Our products are widely appreciated by our clients for their high quality attributes, rigid construction and longer serving life. We can also customize offered product as per the specifications given by our valued customers. Features: Easy MaintenanceLower Operational CostApplication Specific Design

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Capacitance Level Measurements

AMBER-ATCS-500HT

Approximate Capacitance (Microfarads/Km) For Single / Three Core Cables

Dependability, strength, durability, ruggedness are the keywords when it comes to the use of level instruments for continuous monitoring in difficult environment conditions. The ILC... series stands up to the requirements of a tough continuous level detector and offers the following benefits:Level is displayed on a built-in Digital Panel Meter having 0.5 inch high digits for better visibility. Standard output signal of 0-5 V DC and 4-20 mA DC proportional to 0-100% level change available for remote indicators and recorders. "In Situ" range selection and calibration possible from evaluation unit. Probe head accessibility not required. Measuring system has no moving parts so does not suffer any mechanical wear and tear and hence is maintenance free. Economical to install, since ordinary 3-core cable is used for interconnection. Flame-proof probe suitable for hazardous areas as per IS-2148 for group IIA and IIB is available. As far as the service material is concerned, the ILC indicator can be used with conductive or non-conductive liquids, powdered or grained materials of homogeneous composition having stable dielectric constant. Our clients in the Oil, Food, Water treatment, Diesel, Chemicals etc. industries have used the ILC level indicator to their satisfaction. Technical Data Evaluation UnitHousing Cast Aluminium, Weather proof, back panel/wall mountingCable Entry 3 Nos. / 2 Nos.Max. Amb. Temp. -20o C to + 60o C.Power Consumption 5 VA approx.Mains Voltage 230 V or 110 V AC (-15% to +10%), 50 Hz; 24 V AC/DC; 90 to 260 V AC universal power supply. (to be specified while ordering).Relay Output One/two set (s) of potential free c/o contacts rated at 230V AC 6A, 50 Hz for non-inductive load per set point.Fail-Safe Mode Max. or Min. Field selectable.Indication Red LED for alarm, Green LED for normal, Yellow LED for system fault.Response Time 0.2 SecondSwitching Delay for Adjustable from 0.5 to 20 Second. for probe covered or uncovered condition.Connection to Electronic Insert 3 - core unscreened cable.Initial Capacitance 0 to 290 pf. in 3 overlapping ranges. (For single point switching) 0 to 1200 pf. in 3 overlapping ranges.(For pump control & multi point switching)Switching Hysteresis0.5 pF. typical. (For independent switching) & Continuously adjustable over the entire range. (For pump control switching) Electronic Insert - LDC 311Housing Plastic, potted in epoxy resin.Frequency 500 kHz. (approximately).Ambient Temp. -20o C to 80o C.Supply Voltage 15 V derived from evaluation unit.Output Signal 3 to 12 V DC. Probe A wide variety of probes with different mounting connections is available to suit various process applications. We offer specially designed ceramic insulated rod/rope probes suitable for operating temperatures max up to 600o C.

Capacitance Level Indicator, Switch And Transmitter is ideally suitable for level measurement and control of liquids and some slurries of homogenous composition having a stable dielectric constant. The performance of these instruments is not affected by the properties of the liquid such as conductivity, corrosiveness and viscosity. Features: Microcontroller based design. Digitally Controlled relay output. Auto-tuning feature easily adapts to different sizes of tank and liquid. Simplified calibration procedure.Overflow visual indication Adjustment of parameters with the help of menu. TECHNICAL SPECIFICATIONS: Tank height / Range0 to 5 mtrs ConnectionFlanged to ASA/BS/DIN/ Screwed BSP/NPT Probe MaterialPTFE Insulated SS304 or SS316 or SS316L Enclosure ClassFlame-proof IP-65, IIA, IIB, IS:2147 CMRI/TC/H449 Enclosure MaterialDie Cast Aluminimum Lm6 InputLevel Retransmission Output4-20 mA DC, Optically Isolated Level Display4 Digit LED Relay outputPotential Free Contact (5A/230 VAC) Power Supply24 VDC / 150mA 10% Accuracy 2% of Full Scale Power Consumption TerminationThrough pin type lugs Operating Temperature0 to 200 C Operating Pressure0 to 25 Kg/cm2 Relative Humidity5 to 95 % RH, Non-Condensing

Measurement of Inductance And Capacitance

Measurement of Inductance And Capacitance (Model No: Electronics Lab ELE107 (Measurement of Inductance And Capacitance) )Measurement of Inductance And Capacitance from Electrical Electronics Lab India Measurement Of Inductance Capacitance By Maxwells L C BridgeExperimental Training Board has been designed specifically for the study of Maxwell s L/C Bridge. Using this bridge the value of unknown capacitor or an unknown inductor can be found. The board is absolutely self contained and requires no other apparatus. Practical experience on this board carries great educative value for Science and Engineering Students.Object: To study Maxwell s L/C Bridge. 1. To measure value of unknown capacitance. 2. To measure value of unknown Inductance. Features: The board consists of the following built-in parts: 1. 12V D.C. at 100mA, IC regulated Power Supply internally connected. 2. 1 KHz Sine Wave Oscillator. 3. Audio Amplifier and speaker for null detection. 4. Five unknown values of capacitors selectable by a band switch. 5. Three unknown values of inductors selectable by a band switch. 6. Two decade resistances in 100 ohm steps. 7. Potentiometer and adequate no. of other electronic components. 8. Mains ON/OFF switch, Fuse and Jewel light for Engineering Electronics Workshop Laboratory Instruments

Limit detection Protect your application from overflow or dry-running