Protocontrol Instruments India Pvt. Ltd. Bhosari, Pune, Maharashtra

We are offering Electronic speed switch series esm is used to monitor speed of conveyers, crushers, rolling mills, agitators, mixers, stirrers, screw conveyers bucket elevators and other industrial machinary.the device actuates relay contacts at preset speed.using these contacts, desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. speed sensor is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Sensor detects presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. Output is in the form of relay contact. standard contact rating is 5 amp resistive at 230 v ac. in case of under speed – zero speed application built-in initial by-pass time delay is provided to allow the rotating machinery to attend the desired speed. If after this set time the motor does not attend the set speed, the relay is de-energized and the switch resets automatically when the desired speed is attained. Speed range is to be selected considering normal running speed of the equipment and desired trip speed. following models are available “ esm 1 w: electronic speed switch for under speed monitoring, field mounting esm 2 w: electronic speed switch with digital display, field mounting esm 4 w: electronic speed switch for over speed monitoring, field mounting esm 1 f: electronic speed switch for under speed monitoring, flame proof enclosure esm 1 d: electronic speed switch with digital display front panel mounting esm 5 d: electronic speed indicator (tachometer) front panel mounting digital display models provide more features like field adjustable scaling factor, keypad setting, two point contact operation etc. Models with 4-20 ma retransmission output is also available. various other options are available. Please visit websit to download catalogue.

We are offering zero speed switch, electronic speed switch. Protocontrol make zero speed switch series: esm is designed for indication & monitoring of rotational speed of the drive used on machines like crushers, conveyors, centrifuges, mixers & agitators. The speed monitor which uses non-contact sensor like inductive, capacitive, magnetic or optical proximity switch to sense the speed & actuates a relay at preset speed. Using contacts of this relay desired control action such as zero speed protectionunder speed protection over speed protection under & over speed protection can be achieved. The model with digital display facility normally indicates actual speed of the equipment. Speed monitor displays set speed when push button is pressed. Hence accurate speed setting is possible. the op is in the form of 2co relay contacts. Bcd op is also available in special versions. Speed range from 1 to 6000 rpm using inductive proximity switch as a sensor & 500-5000 rpm using magnetic or optical sensor can be covered in six ranges. the enclosure for monitoring unit is panel-mounting type ip 30. A special sturdy cast al enclosure suitable to ip 65 grade can be provided when the when the unit is required to be field mounted. Supply voltage to the control unit is 240 v ac, or as per requirement. Special features such as digital display, direction sensing, multi range model, differential or slip speed monitoring, analogue op are also available. Versions substitute to imported one are also available.

Brand Name : Protocontrol

The centrifuges are rotating at high speeds. To avoid the danger due to untimely opening of the centrifuge door, zero speed detectors is used as a preventive/safety device. when the centrifuge is rotating, solenoid is activated and the door remains closed even though someone tries to open it .the solenoid is de-activated when the centrifuge speed approaches to zero. I.e. Only when the centrifuge stops rotating. inductive proximity switch is used as a sensor and is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Proximity sensor detect presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. Output is in the form of relay contact. special sensor as well as control is available for use in hazardous area. The enclosures and enclosures are certified by competent authority for use in gas group: iia, iib as well as iic

Brand Name : Protocontrol

We are offering weatherproof junction boxes. Protocontrol enclosure versatile for modern day industrial applications. They are rigid in construction, flexible offering complete safety in use and quality are trumps with enclosure. Available in ip-65 of protection and suitable for terminal boxes, push button station, local control stations, push button pendant, street light pole boxes, plug & socket units, electronic equipment housing and other applications. protocontrol offers an unbelievable choices of sizes and materials (sheet steel, cast aluminum cast iron and glass reinforced polyester) with the correct properties to suit every application. all enclosures are manufactured in the state of art manufacturing unit using latest technology resulting in high consistency and an aesthetically superior finish. The right grade powder coating (ral 70321 structure finish, ral 7001, or light grey shade 631) as standards for metallic boxes provides very ub=niform and durable resistant silicon cord is used on to vovers, which ensures optimum ingress protection (ip) and long durability.

We are offering vibrating fork type level switch. Protocontrol make vibrating fork level switch is specially developed for sensing the level of free flowing powders and liquids like cement, steel, ore, fertilizer, food grains, coal, sand chips etc. it consists of piezo-electric crystal which whose vibrations are blocked by material. The output relay gets activated when material blocks the vibrations. It can be ideally be used to sense the material with size up to 10mm and with bulk density 0.05 kgdm3. Output for vibrating fork type level switch is 2 sets of changeover contact rated for 5 amp. Resistive at 230v ac. the level switch consists of the control unit and fork. The fork can be integral with the control unit. The control unit can also be remote mounted. The remote control unit option is selected when the process temperature exceeds 150 degree cent. The enclosure for control unit is sturdy cast al, ip 65 suitable for field mounting. standard length for the fork is 250 mm. Other lengths of fork up to 3 mtrs. Is also available on demand. The ambient temperature for the switch is 60 deg. Cel. The temperature in vessel for integral type level switch is 150mm

We are offering pressure transducer. Protocontrol take this opportunity to introduce ourselves as representative of one of the largest global manufacturer of process control instrumentation products. gems sensor & control, designs and manufactures a broad portfolio of liquid level, flow switches, pressure switches, miniature solenoid valves, and pre-assembled fluidic systems. gems sensors & controls has manufacturing facilities in usa, uk, and china. very low-pressure transducers for ranges as low 0.25?? w.c. And feature ±1% full scale static accuracy. Primarily used in building energy management, these transducers are capable of measuring pressures and flows with the accuracy necessary for proper building pressurization and air flow control. 865 series transducers utilize an all-stainless steel micro-tig welded sensor that allows up to 10 psi overpressure (in either direction) with no damage to the unit. All sensor components have thermally matched coefficients, which promote improved temperature performance and excellent long-term stability.

We are offering very low differential pressure transducer. protocontrol take this opportunity to introduce ourselves as representative of one of the largest global manufacturer of process control instrumentation products. gems sensor & control, designs and manufactures a broad portfolio of liquid level, flow switches, pressure switches, miniature solenoid valves, and pre-assembled fluidity systems. gems sensors & controls has manufacturing facilities in usa, uk, and china. very low-pressure transducers for ranges as low 0.25?? w.c. And feature ±1% full scale static accuracy. Primarily used in building energy management, these transducers are capable of measuring pressures and flows with the accuracy necessary for proper building pressurization and air flow control. 865 series transducers utilize an all-stainless steel micro-tig welded sensor that allows up to 10 psi over pressure (in either direction) with no damage to the unit. All sensor components have thermally matched coefficients, which promote improved temperature performance and excellent long-term stability.

We are offering verticle guided sight level switch. Protocontrol offers vertically guided sight level switch for measuring and indication of level of liquid. It can also be used in special purpose machines for measuring level of coolants, oil in a tank. It gives multiple levels switching by using number of switches. The switching can be made by non contact magnetic inductive proximity switch the float assembly is provided with a rod which moves in a transparent acrylic tube. The rod carries magnet m s flag which is sensed by switch kept outside the tube. Hence hi-low switching can be generated by using two switches. The switch assembly is to be fixed on the tank whose level is to be monitored. The float moves up and down inside the tank. this switch cum indicator is easy to install, it indicates of level from outside the tank, it is economical and the switches do not come in contact with liquid.

We are offering vertically guided magnetic float level switches are used for point level detection of liquid in all types of vessels. it is suitable for corrosive chemicals, food industry, lubricating systems for machine tools, printing & packing & spm’s. it operation is without external power. The float switch is designed to provide long, trouble free service. It is provided high repeatability, minimizing the effects of shock, vibration & pressure. Two types of level switches are available. Top mounted vertically guided and side mounted. Float of top mounted switch moves directly with the liquid surface, actuates a hermetically sealed switch within the stem. By using these contacts control action can be generated. contact rating is 30 va at 24 v dc. Special switches are available with higher contact rating. various float material are available depending on the application and media whose level is to be sensed. Standard is ss. Other floats like pp, pu are available.

Brand Name : Protocontrol Instruments

We are offering ultrasonic proximity sensor, ultrasonic proximity switch. special designed for special machine manufacturer. Ultrasonic proximity sensors provide analogue output depending on level or distance.

Protocontrol offers ultrasonic level transmitter for level sensing applications. It is low cost, non contact type level measurement technique. The analogue op (4-20 ma, 20-4 ma) is used for indication and control purpose. The sensor is to be mounted on tank or hopper, the op signal can be processed at field or in control room for control action. Various models are offered for sensing range up to 50 meters for liquid application. For solids application the range is approx 25 mtrs. an ultrasonic pulse is transmitted from the sensor face. The pulse travels to the surface being monitored and is reflected off this surface back to the sensor. The time of flight is divided by 2 and converted to an output signal directly proportional to the material level ultrasonic level transmitter can be used in food and beverages industries, water wastewater treatment plants, chemicals and oils. However it is not recommended where foam, fumes and excessive wind is present. this transmitter is simple having only push-button calibration. The output is 4-20 ma or 20-4ma it has built-in temperature compensation. It is having compact size and is easy for mounting and installation. sensing range up to 50 meters for liquid , for solid the range is approx half.

We are offering tying clips for pull cord cable. protocontrol offers accessories for pull cord switches. these accessories are specially developed in reducing installation time of switches. two tying clips are required per switch for tying pull cord cable to switch.

We are offering turbine flow meter. Protocontrol take this opportunity to introduce ourselves as representative of one of the largest global manufacturer of process control instrumentation products. gems sensor & control, designs and manufactures a broad portfolio of liquid level flow switches, pressure switches, miniature solenoid valves, and pre-assembled fluidic systems. gems sensors & controls has manufacturing facilities in usa, uk, and china. rotorflow® flow sensors 1. Provide visual indication, continuous sensing and accurate switching 2. Bright, visual indication with choice of pulsed dc output, or adjustable 1 amp switched output. 3. Flow ranges from .1 gpm to 60.0 gpm 4. Compact inline housings available in high performance plastic, brass or stainless steel housings. The rf-2500 series flow switch, has been totally re-engineered with a one piece composite rotor, stronger unibody construction, ceramic shaft and better sealing. the results are greater durability with broader chemical, temperature and pressure capabilities. switch types for specific flow setpoint switching, rotorflow® rfs type flow stitchesare one of the most reliable flow switches available. setpoints are fully adjustable over the specified flow range. the dynamic operation of the rotor guards against jamming and false actuation. output types for flow rate monitoring or metering applications. rotorflow® rfo type flow sensors provide a pulsed dc voltage output that is proportional to the rate of flow. the operating range of 4.5 to 24 vdc pulsed output is easily integrated into most digital logic units. rfa type rotorflow® sensors provide a continuous 0-10 vdc analog output.

We are offering trough beam photoelectric proximity sensor, protocontrol offers variety of proximity switches & sensors for automation. More than 3500 varieties of switches are offered under one roof. These include tubular threaded switches from m5 to m 80, square rectangular, slot types. The supply voltage available is ac, dc and ac-dc universal. Special namur switches are certified for use in hazardous area. Models with quick disconnect plug are offered for ease of wiring. Switches can directly be connected to load like plc. trough beam type photoelectric proximity switch: beam of invisible pulsed modulated infra-red light is produced by emitter. This beam is sensed by receiver at another end. When this beam is interrupted by object, the receiver signal gets changed and signal is produced.

Protocontrol offers variety of proximity switches & sensors for automation. More than 3500 varieties of switches are offered under one roof. These include tubular threaded switches from m5 to m 80, square rectangular, slot types. The supply voltage available is ac, dc and ac-dc universal. Special namur switches are certified for use in hazardous area. Models with quick disconnect plug are offered for ease of wiring. Switches can directly be connected to load like plc. trough beam type optical proximity switch: beam of invisible pulsed modulated infra-red light is produced by emitter. This beam is sensed by receiver at another end. When this beam is interrupted by object, the receiver signal gets changed and signal is produced.

We are offering trip indicator protocontrol is pioneer in developing and promoting concept of product “addressable safety switch with trip indicator “. This is first of its kind with proven concept with distinct advantage and hence very popular for short and long conveyors the industry worldwide. by using this system number of operated switch is displayed in control room. This eliminates downtime required to locate the operated switch. the system consists of communication card which is to be housed in every pull cords switch & trip indicator which is to be located in control room. When specific switch is operated the communication card communicates to trip indicator which displays number of operated switch and also actuates a contact for tripping. the wiring between pull cord switch and trip indicator is to be done by ordinary two core cable. Indicator displayed number of operated switch and actuates relay contact for tripping the conveyor. It also communicates to plc / dcs by modbus communication. special features like scrolling (display all locations of multiple operated switches at a time), roll call (indicates missing / failure/ loose connection/ line fault of communication card on display with optional tripping performance of this system is established at many cement, steel plants and power stations. various models are available for small and extra long conveyors. Protocontrol also offers belt watch panels.

We are offering tilt level switch. Protocontrol make tilt switch is specially developed for sensing the level of material heavy solids in hopper. It also find application on stacker raclaimer for positioning of the boom. .tilt switch gives output when material touches the tilt probe. This output is used to lift the boom to next step. When fitted in hopper, gives output when tilt probe gets tilted when material level reaches the specified level. the tilt switch comprises of two parts, sensor probe & monitoring unit. The sensor probe is tabular structure & is hanged by means of a chain link arrangement. When the tilt probe gets tilted by material the output relay gets actuated. the sensor probe of the unit has omni directional sensing pattern & hence on whichever side it tilts, it definitely provides an output signal. Tilt switch has in built adjustable on & off delays to take care of the nuisance tripping due to wind flow or momentary jerks the start and stop of the machine. the probe is fabricated from heavy solid material and hence it can well be used in heavy material like lime stone, minerals & clinker. supply for control unit is either 110 240 v ac. Output is in the form of 2 c o relay contact rated for 5 amps. Resistive, at 240 vac. Enclosure for control unit is weather proof ip65.

We are offering Terminal Box. PROTOCONTROL Enclosure versatile for modern day industrial applications. They are rigid in construction, flexible offering complete safety in use and quality are trumps with enclosure. Available in IP-65 of protection and suitable for Terminal Boxes, Push Button Station, Local Control Stations, Push Button pendant, Street light pole Boxes, Plug & Socket units, Electronic Equipment housing and other applications. Protocontrol offers an unebelievable choices of sizes and materials (Sheet steel, cast Aluminium Cast Iron and glass Reinforced Polyester) with the correct properties to suit every application. All enclosures are manufactured in the state of art manufacturing unit using latest technology resulting in high consistency and an aesthetically superior finish. The right grade powder coating (Ral 70321 structure finish, RAL 7001, or light grey shade 631) as standards for metallic boxes provides very ub=niform and durable resistant silicon cord is used on to vovers, which ensures optimum ingress protection (IP) and long durability.

Brand Name : Protocontrol Instruments

We are offering temperature measurement, humidity measurement complete temperature monitoring solution. From sensor to indicators, digital indicators, digital process indicators, controllers, scanners, records and complex furnace / process data acquisition system: prosoft. Stand alone controllers and scanners with retransmission output / rs 232 output for pc interface. * temperature sensors with / without thermo well * temperature indicator and controllers * process temperature scanners * winding & bearing temperature scanner * pid controller * bar graph indicators * profile controller * flame proof temperature measuring devices * data acquisition system for on line temperature measurement * non contact temperature pyrometers * temperature calibrators * humidity sensors, transmitters and controllers * wireless temperature and humidity transmitters.

We are offering subminiature solenoid valve. Protocontrol take this opportunity to introduce ourselves as representative of one of the largest global manufacturer of process control instrumentation products. gems sensor & control, designs and manufactures a broad portfolio of liquid level, flow switches, pressure switches, miniature solenoid valves, and pre-assembled fluidic systems. gems sensors & controls has manufacturing facilities in usa, uk, and china. a 2- or 3-way sub-miniature solenoid valve that delivers faster response times -- and higher flow rates, the e & eh series is specifically engineered for air and dry gas applications. a nickel-plated body and coil housing construction produces a highly durable, corrosion resistant valve. with a wattage range of 0.65-2 the e & eh series provides versatility for power conserving, high pressure, and high flow applications. applications: medical and respiratory healthcare printing machinery and sorting equipment automated packaging equipment air monitoring systems.

Brand Name : Protocontrol Instruments

We are offering subminiature gas solenoid valve. Protocontrol take this opportunity to introduce ourselves as representative of one of the largest global manufacturer of process control instrumentation products. gems sensor & control, designs and manufactures a broad portfolio of liquid level, flow switches, pressure switches, miniature solenoid valves, and pre-assembled fluidic systems. gems sensors & controls has manufacturing facilities in usa, uk, and china. a 2- or 3-way sub-miniature solenoid valve that delivers faster response times -- and higher flow rates, the e & eh series is specifically engineered for air and dry gas applications. a nickel-plated body and coil housing construction produces a highly durable, corrosion resistant valve. with a wattage range of 0.65-2 the e & eh series provides versatility for power conserving, high pressure, and high flow applications. applications: medical and respiratory healthcare printing machinery and sorting equipment automated packaging equipment air monitoring systems.

We are offering start stop push button station, protocontrol enclosure verssatile for modern day industrial applications. They are rigid in construction, flexible offering complete safety in use and quality are trumps with enclosure. available in ip-65 of protection and suitable for terminal boxes, push button station, local control stations, push button pendant, street light pole boxes, plug & socket units, electronic equipment housing and other applications. protocontrol offers an unbelievable choices of sizes and materials (sheet steel, cast aluminium cast iron and glass reinforced polyester) with the correct properties to suit every application. all enclosures are manufactured in the state of art manufacturing unit using latest technology resulting in high consistency and an aesthetically superior finish. The right grade powder coating (ral 70321 structure finish, ral 7001, or light grey shade 631) as standards for metallic boxes provides very uniform and durable resistant silicon cord is used on to covers, which ensures optimum ingress protection (ip) and long durability.

Brand Name : Protocontrol Instruments