Our product range includes a wide range of Capacitive Level Measurement Sensors such as Capacitance Level Switch, Capacitance Level Sensor, Capacitance Continuous Level Indicator, Level Transmitter, Translite Fuel Level Sensor, Loss Of Head Indicator and many more items.
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The SLC series level limit switch can be used for level limit detection of solids that are fine/coarse or in bulk. This capacitance based level measurement switch can also be used for liquid level measurement including water. This small level switch cab also be used with liquids that are sticky/non-sticky corrosive or non-corrosive for switching conveyors off, indicating empty tank condition, preventing pumps for running dry and for detecting the separation layers accurately. The SLC series capacitance based level switch has been used by many of our clients successfully in the Cement, Plastic, Power, Food, Chemicals, Fertilizer, Sugar, Detergent and many other industries. The SLC series consists of an evaluation unit, an electronic insert and the probe. The probe can be mounted form the top or side of the vessel. The probe system comprises a sense electrode which is insulated from the metallic tank by means of a suitable insulator. The sense electrode and the vessel wall serve as the two electrodes of a capacitor with the service material as the dielectric.
You can calibrate the level limit evaluation unit far away from the probe. This level switch uses ordinary 3 core cable for interconnecting the electronic insert with the evaluation unit. A variety of built in multi-point evaluation units is available to reduce the number of discrete controllers thereby reducing the overall cost. The fail-safe high/low selection feature is available as a standard. This systems is economical to install and you can even have it in circular enclosures for your specific requirements.
|Housing ||Cast Aluminum, Weather proof, back panel/wall mounting |
|Cable Entries ||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 sets of potential free change over contacts rated at 230V AC 6A, 50 Hz for non-inductive loads 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 Second |
|Switching Delay ||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 Hysteresis ||0.5 pF. typical. (For independent switching) & Continuously adjustable over the entire range. (For pump control switching) |
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 600°C.
We call this series the “Intelligent Capacitance Level switch series”. And we do so because this level switch has a microprocessor that checks the complete system (including itself) before validating a signal. You will see a flashing green LED that serves as heartbeat to indicate a healthy system. In the case of a system fault ,which may result due to incorrect wiring, open or short sensor connection, inadequate probe insulation improper grounding or electronic insert failure, the heartbeat stops fault LED glows, display indicates “E---“ and the relay contacts revert to their fail-safe condition. The MP-SLC level switch is a highly reliable liquid and solids level indicator. A two wire Pulse Frequency Modulation (PFM) is used for interference-free signal transmission between probe and evaluation unit. Complete system is checked before each measurement and the system has a provision for auto-compensation for temperature drift in the vicinity of a pre-amplifier. The MP-SLC series exhibits a high degree programmability. Important functions such as operating mode (independent/pump control), delayed switching for probe covered/uncovered conditions, fail safe high/low, switching sensitivity,
Electronic Insert - LCD 312
|Housing ||Cast aluminium, Weather-proof Stoving enamel painted, suitable for back panel/wall mounting. |
|Cable Entries ||3 Nos. of ½” BSP |
|Mains Voltage ||110 V or 230 V AC (-10 to +10%) 50 Hz (as specified in order). |
|Power Consumption ||5 VA approx. |
|Initial Capacitance Adjustment ||30 pF to 280 pF in two selectable ranges. |
|Indication ||2½ digit, 0.5 inch Red LED display; 2 inch display is also available in separate housing |
|Operating Temperature ||-20o C to +60o C |
|Utilizable Capacitance Variation ||10 pF to 4500 pF in three selectable ranges. |
|Accuracy ||± 2% of the F.S.D. |
|Outputs ||0 -100% digital display 0/4 -20 mA into RL max. 400 Ohms and 0 -5 V |
DC for RL >25 KW for remote indicators and recorders.
|Dimensions ||185 mm x 185 mm x 85 mm |
|Weight ||2.3 Kg (approx.) |
|Housing ||Plastic with electronics potted in epoxy resin. |
|Supply ||20 V DC max. 10 mA. derived from Evaluation Unit. |
|Measuring Frequency ||33 K Hz (approx.) |
|Operating Temperature ||-20o C to + 60o C. |
|Housing ||Cast Aluminium , SS, FRP-coated, HDPE. |
|Mounting ||Flanged or Screwed as per requirement. |
|Length ||150 mm to 3000 mm in Rod, Greater than 3000 mm in Rope. |
|Insulation ||Part or full PVC, PTFE, Ceramic (Part only) depending on service temperature of 80o C, 200o C or 400o C respectively. |
Reference probe is required, when the tank is non-metallic. Grounding tube is required, when the liquid is turbulent or tank shape is curved.
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Capacitance Continuous Level Indicator
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 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 Continuous Level Indicator can be used with conductive or non-conductive liquids, powdered or grained materials of composition having stable dielectric constant. Our clients in the Oil, Food, Water treatment, Diesel, Chemicals etc.
Electronic Insert - LDC 311
|Housing ||Cast Aluminium, Weather proof, back panel/wall mounting|
|Cable 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 Second|
|Switching 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 Hysteresis||0.5 pF. typical. (For independent switching) & Continuously adjustable over the entire range. (For pump control switching)|
|Housing ||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.|
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.
The MPILC series is a microprocessor based level detection assembly designed to withstand the acute environment conditions and give you accurate detection of service material level in your process unit. This continuous level indicator can be used for any solid or liquid that has a homogenous composition and a stable dielectric value. The MPILC system has a microprocessor which checks the complete system and itself before validating the signal. A flashing green LED serves as heartbeat to indicate a healthy system. In the event of occurrence of a system fault such as incorrect wiring, open or short sensor connection, failure of probe insulation, improper grounding or electronic insert failure, the heartbeat stops, fault LED glows, display indicates “Err--“ and the relay contacts revert to their fail-safe condition.
PRE-AMPLIFIER (Electronic Insert) LDC - 117:
|Housing ||Cast Aluminium Whether-proof Stoving Enamel painted, suitable for back,panel/wall mounting. |
|Cable Entries ||3 Nos. ½” BSP/NPT |
|Operating Temperature ||–20 to +60º C |
|Mains ||90 -260 V AC / 50 - 60 Hz. |
|Power Consumption ||3.5 VA approx. |
|Measuring range ||10 pF to 4500 pF |
|Offset ||30 pF to 280pF |
|Indication ||Percentage display from – 50% to +150% on multipurpose 5 Digit 0.5” LED display (2” display also available in separate housing) |
|Accuracy ||+/- 2% of the measuring range |
|Programming ||via 5 push button keys |
|Analog Output ||4 -20 mA galvanicaly isolated output with two wire capability |
|Load Resistance ||RL (Max) = 1 KΩ |
|Galvanic Isolated ||18 to 22 V (Safe RL (Max) = 800 Ω for on board supply |
|Relay output ||3 potential free relays, (rated at 6A,230V,AC, 50Hz for non-inductive load), for three point level switching Independent/pump control switching. Time delay programmable up to 99 sec. |
|Dimensions ||Overall 185X185X85mm |
|Housing ||Plastic with electronics potted epoxy resin, mounted in probe head. |
|Potting ||-20º C to 80º C. 12 V at 17 mA max. derived from evaluation unit only. |
|Operating Temperature ||-20º C to +80º C |
|Supply ||18V DC at 10mA (approx) derived from evaluation unit |
|Measuring Frequency ||50 -250 KHz |
|Probe Head ||Cast Al. weather-proof. |
|Mounting ||Flange or Screwed as per requirement |
|Length : ||150 mm to 3000 mm in Rod Probe, greater than 3000 mm in Rope |
|Insulation ||Part or Full PVC, PTFE, Ceramic (Part Only) depending on service temperature of 80º C, 200º C or 400º C respectively. |
- Reference probe is required, when the tank is nonmetallic
- Grounding tube is required, when the liquid is turbulent or tank shape is curved
- Two core screened cable required for interconnection (Up to 1Km, user's scope)
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Translite Fuel Level Sensor
Sapcon instruments offers the translite family of fuel level sensor instruments which use the capacitance technology for accurate fuel and oil level measurement in process plants. Thet ranslite family of fuel level sensors have no moving parts and can be ideally used in extreme plant conditions of high temperature and pressure. The translite instrument range supports a power supply within dc automation is available from 11 to 55 vdc, addressing the need for 12v, 24v and 48v industrial supply options. 4-20ma current loop is galvanically isolated (4 wire) and plc, scada compatible. 4-20ma current loop can supply up to 1000 ohm series load with 24vdc supply. This means 4-20ma signal can be carried to longer distance. The ease of calibration ensures user friendliness: “just let it know the fuellevel for 4ma and 20ma, rest it will take care of. ” following are the options for you to choose from:
- translite fuel level sensor - it is composed of the specially developed capacitance change gaging circuit. Translite uses a fast risc based processor which is the best in its class for evaluating fuel level using capacitance. The capacitance is formed by the sense rod and the metallic container wall. For non-metallic and/or non-uniform shaped containers, a metallic stilling well is provided. The amount of capacitance is proportional to the level of material between the sense rod and metallic wall of stilling container.
- trans~lite fuel level sensor - the best affordable liquid fuel level measuring solution for high temperature conditions. Its key feature is the ease of calibration which is not commonly available in this range of fuel level transmitters. Trans~lite allows electronic-less measurement of level up-to 5 meters distance between the probe and the electronics.
- trans2lite fuel level sensor is a microcontroller based 2 wire capacitance fuel level sensor. Trans2lite has temperature compensated electronics that provide a stable output. This fuel level sensor allows calibration in steps of 10% from 0 to 100% eliminating the need for rigorous emptying filling calibration.
- best fuel level sensor: fast delivery on request, cost effectiveness and low power consumption make this device cut above the rest. All in all, translite is a complete “value for your money” device and if your system has a scada or plc interface, translite is your best buy.
- custom fuel level sensors - capacitance: translite family fuel level sensors can be custom designed to your specification requirements. The sensors have no moving parts and are extremely accurate. They can be designed to fit within the tightest of space envelopes and withstand the most acute work environments.
Sapcon LOH (loss of head indicator) is a perfect solution of measuring differential level in open channels and is widely used in water treatment plants and filter stations. The LOH series instruments are RISC Processor based capacitance type Continuous Level Indicators with built in three point switching. The system not only serves as a level indicator for conductive non conductive liquids, slurries and powdered or fine grained solids, but also offers switching functions for alarm annunciation and/or control application at the set point levels through the built in three point electronic level limit switch.
- Latest RISC core microcontroller technology.
- Measured level is displayed continuously from -50% to 150%.
- Multipurpose 5 digit seven segment LED display for best resolution and better viewing from distance.
- Two wire pulse coded digital communication from sensor to evaluation unit.
- Supports as much as 1 KM distance between sensor and evaluation unit with shielded two core cables.
- Galvanically isolated true two wire 4-20mA proportional to 0% and 100% level is available for remote indication purpose.
- Two wire implementation solves the malfunction problems that occurs with various PLC 4-20 input interfaces and thus better suits
- for higher end automation.
- 4-20mA loop can handle 700 Ohm loop resistance with internal isolated supply.
- Three independent potential free relays providing flexibility of selecting three independent switch points.
Loss of Head indicator Fail Safe Select
|Housing ||Cast Aluminum, Weather Proof, Stoving Enamel Painted. Suitable for back panel / wall mounting. |
|Cable Entries ||3 Nos. of / BSP/NPT |
|Operating Ambient Temperature ||-20°C to +60°C |
|Power supply ||Universal Mains 90 to 265 VAC, 50/60Hz and 24VDC (@ 3 Watt) |
|Sensor to Evaluation Unit Cable ||2-Core; resistance per core not to exceed 30 Ohms. Use of shielded twisted pair cables is recommended for long runs of cable. Cable lengths of 1000 meters are thus supported with grounded cable shields. |
|Utilizable span ||10 to 4500 PF |
|Zero% Range ||30pf to 250pf |
|100% Range ||10pf to 4500pf (Difference from Zero %) |
|Outputs ||Current 4 to 20mA. 3 Potential Free relays with One set of Potential Free Change Over Contact per Relay. |
|Contact Ratings ||6 Amp @ 230VAC 50/60 Hz for non-inductive loads. |
|Indication Continuous ||-50% to 150% digitally on 1 ” Seven Segment Display |
|Switching ||5 mm Red LEDs’ for Alarm Indication. |
|Switching Hysterisis ||1% in Single Point Switching, 1 to 98% selectable in Pump Control. |
Set Point Select Weight Electronic Insert Housing Plastic Power Supply Measuring Frequency Operating Ambient Temperature Sensitivity Output
|Field Selectable through interactive relay configuration menu. |
|2.3 Kg Approx.N |
|- LDC117, LCDM 111 |
|potted with epoxy resin. |
|16VDC @ 5mA derived from Sensor Communication Interface of Evaluation Unit. |
|250Khz to 20Khz. Reverse Frequency Measurement. |
|20 C to +60 C |
|10 counts per pF |
|Digitally Encoded Current (5mA-8mA) Pulse. |
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The MPROF Rate of Flow indicator is a capacitance based solution for reliable detection of rate of flow of liquids in an open channel. The level change is measured using the capacitance principle and converted to rate of flow utilizing the appropriate formula. The MPROF system has an interactive user interface offering you to choose from any of the below mentioned hydraulic devices:
Microprocessor based system for higher degree reliability and stable operation in noisy environment due to intelligent digital communication between the electronic insert and the evaluation unit. All parameters programmable via Five keys and Five multipurpose LED displays. No potentiometer settings required.Galvanically isolated 4 to 20ma output proportional to either level or flow.Three relays for programming three levels / flow independently or as per pump- control logic.One potential free change over relay output contact per relay.
Principle Of Operation:
When the liquid flows through a Hydraulic measuring device (Weir), the level of the liquid is directly proportional to the rate of flow. By knowing the constants of the Weir, flow rate can be calculated by the formula: Q = K * Ln , where Q is the rate of flow in cubic meters per hour, L is the level in meters, k & n are constants that depend on the Hydraulic device.
|Housing ||Cast aluminum, weather proof, stoving enamel painted, suitable for back panel/wall mounting |
|Cable Entry ||3 Nos. ½” BSP / NPT |
|Tolerable ambient temp ||-20°C to +60°C |
|Power supply ||90 to 260V AC 50Hz, and 24V DC |
|Power consumption ||3.5VA (approx.) |
|Utilizable span ||10 to 4500 PF |
|Zero setting range ||30 to 280 PF |
|Indication range ||50% to 150% on multipurpose 5 digit 0.5” LED |
|Accuracy ||+/- 1% FSD |
|Switching Hysterisis ||1% in single point switching and 1 to 98% selectable in 2 point Pump control logic. |
|Programming interface ||5 Push Button Keys |
|Analog output ||4 to 20 ma galvanically isolated into Max 1K Ohm load for 24V DC user supply. Max 800 Ohm for internal isolated supply of 18 to 22 V DC. |
|Output ||3 sets of potential free change over contacts rated at 6A, 230V, AC, 50Hz for non-inductive loads |
|Switching delay ||Programmable up to 99 sec. |
|Fail-safe ||High/Low field programmable |
|Dimensions ||180 x 180 x 85 mm |
PRE-AMPLIFIER (electronic insert) LDC117
|Housing ||Plastic with electronics potted, mounted in Probe Head |
|Operating Temp. ||- 20 to +80 deg. C |
|Supply ||18 V DC at 8ma (approx.) derived from evaluation unit |
|Measuring Frequency ||250Hz to 20 KHz reverse frequency measurement |
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