Dubai, United Arab Emirates
Leading Manufacturer, Supplier & Retailer of Bourdon Tube Pressure Gauge, Pressure Transmitter, High Performance Submersible Pressure Transmitter, Electronic Pressure Switch and Absolute Pressure Transmitter.
Kind of measurement: relative pressure Sensor technology: piezo-resistive Sensor material: 1.4435 /316L Protection: IP65 Pressure connection: G1/4” male Output: 4...20 mA Electrical connection: EN175301-803-A Operating temperature [°C]: 0...+70 Media temperature [°C]: 0...+80
Model 266NRH is a high overload absolute pressure transmitter suitable for measuring liquid, gas or steam flow as well as level, pressure and density characterised by the remote seal construction. Thanks to Taylor’s “All-Welded” technology in remote seal manufacturing as well as to the longstanding expertise, 266NRH can offer unmatched total performances and a wide selection of options such as fill fluid, diaphragm material, capillary protection and mounting connections. ABB, leader in severe process measurements, is able to provide the right solution for the most critical process media at extreme ambient and process conditions. The long-term stability and its proven reliability make of 266NRH the best application solution for absolute pressure measurements. This transmitter features in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with easy setup procedure really helps users by saving time and lowering maintenance and inventory costs. Moreover, the innovative TTG (Through The Glass) technology allows users to configure the instruments in the field without removing the windowed front cover and consequently to save a lot of time. Thanks to the IEC61508 certification (SIL2/SIL3 loops) and the hardware/software redundancy with MTBF of over 100 years, the 266NRH represents the smartest solution in Safety loop applications.
Plug-and-play" with no configuration necessary Scale ranges from 0 … 25 mbar absolute pressure Easy-to-read analogue display with nominal sizes 100 and 160 High overpressure safety, long service life due to metallic media chamber sealing Media chamber protected against unauthorised access
Each thermowell is an important component of any temperature measurement point. It is used to separate the process from the surrounding area, thus protecting the environment and operating personnel and keeps aggressive media, high pressures and flow rates from the temperature sensor itself and thereby enables the thermometer to be exchanged during operation. Based on the almost limitless application possibilities, there are a large number of variants, such as thermowell designs or materials. The type of process connection and the basic method of manufacture are important design differentiation criteria. A basic differentiation can be made between threaded and weld-in thermowells, and those with flange connections. Furthermore, one can differentiate between fabricated and solid-machined thermowells. Fabricated thermowells are constructed from a tube, that is closed at the tip by a welded solid tip. Solid-machined thermowells are manufactured from bar stock. The TW10 series of solid-machined thermowells with flange connection are suitable for use with numerous electrical and mechanical thermometers from WIKA. Due to the heavy-duty design, these international design thermowells are the first choice for use the chemical and petrochemical industries and in plant construction.
The WIKA model BNA bypass level indicator consists of a stand pipe, which, as a communicating interface, is connected laterally to a vessel via 2 process connections (flanged, threaded or welded). Through this type of arrangement, the level in the stand pipe corresponds to the level in the vessel. The cylindrical float (with a permanent magnet system, mounted within the stand pipe) transmits the liquid level, contact free, to the outside via the magnetic roller display mounted on the stand pipe. In this are fitted, at 10 mm intervals, red/white plastic or ceramic rollers with bar magnets. Through the directional magnetic field of the permanent magnet system in the cylindrical float, the magnetic rollers, through the wall of the stand pipe, are turned through 180° For an increasing level from white to red; for a falling level from red to white. Thus the bypass level indicator displays the level of a vessel without a power supply - visible as a red column. × Enquire about Bypass Level Indicator Name * E-mail ID * Phone * Message
It consists of a toughened borosilicate gauge glass tube is fitted between two metallic end blocks through gland packing system. Guards are provided in the form of two steel plates located on the end blocks to provide protection from accidental blows. The gauge is mounted parallel to tank so as to form a closed loop, causing tank liquid to seek its level in the gauge.
It consists of a toughened borosilicate gauge glass tube is fitted between two metallic end blocks & banjo bolts through set of rings. A guard is provided in the form of steel tube enclosing glass gauge to provide protection from accidental blows. The guard has two slotted for viewing oil level . The gauge is mounted parallel to tank so as to form a closed loop, causing tank liquid to seek its level in the gauge.
Simple and sturdy construction, consisting of float & guide tube, made of nonmagnetic material to achieve undisturbed magnetic flux. Float is protected from turbulence, foreign particles by providing external slosh shield arrangement The float has a magnetic system within it and moves freely along the guide tube, which contains hermetically sealed reed switch Float follows liquid level & magnetically actuates the reed switch at defined position The switch is provided with manual test lever to use to check operation Provided with 10 mtrs of integral cable
The system is available in two versions - Integral (standalone) & Two Part. In the integral system, the controller is integral with the probe. In two part system, the controller is separate from the probe and can be mounted remotely. The probe is top / side (inclined) mounted. The measuring principle is based on the value of capacitance formed between the electrode & tank wall, which varies with the liquid level. The capacitance is sensed and converted into voltage signal for relay actuation
The system is available in two versions - Integral (Standalone) &Two Part . In the integral system, the controller is integral with the sensing probe. In two part system, the controller is separate from the probe and can be mounted remotely . The sensing probe is of rugged construction & available in two designs-standard & high temperature The sensing probe is fitted with an enclosure at its top end, which holds the control electronics and its lower end holds a SS tuning fork, which vibrates at its mechanical resonance frequency of 120 Hz, created through a piezo crystal when in air. However, when the tuning fork is covered with liquid / slurry, its vibrations get damped. This is sensed by the control electronics, which changes the status of output relay contacts.
The AT600 Magnetostrictive Transmitter is based on the Same Magnetostrictive Principle as the AT100 Model. The AT600 is a Compact Magnetostrictive Liquid Level Transmitter is Designed to Mount Externally on the KM26 Magnetic Level Gauge or other Magnetic Level Gauges. Designed to Mount Externally to K-TEK KM26 or Other Magnetic Level Gauge High Resolution 4-20 mA Output Simple Mounting and installation No Process Piping or Valve Required Very Compact Design Suitable for High Temperature Applications Calibrates Without Opening Enclosure Stainless Steel Enclosure
Award-winning in design and functionality The successful design and the excellent functionality of the WIKA switch family were already confirmed by winning the ”iF product design award 2009”forthe PSD-30 pressure switch. The robust LED display has been designed using 9 mm high characters (the largest possible) and with a slight incline in orderto make reading the level as easy as possible from a long way off . A 14-segment display has been used, since it represents text very well. The 3-key operation makes simple, intuitive menu navigation possible, with no need for additional assistance . The menu navigation is designed in accordance with the latest VDMA standard . The VDMA standard for fluid sensors (24574-4, part 4 -level switches) has the aim of considerably simplifying the use of level switches by standardising menu navigation and display. The control keys have been designed as large as possible and are arranged ergonomically to ensure fast and easy adjustments . Operation without any additional assistance is made easierthrough the tactile feedback.
The MT5000 Series Guided Wave Radar transmitters feature a graphic display incorporated into an all digital electronics module. Using this new format K-TEK has been able to add waveform screens to the modular electronics along with easy to follow multiple choice setup menus. These menus can be changed to many different languages for easy commissioning throughout the world. MT5000 Series Guided Wave Radar transmitters provide superior performance in tough applications. Pulses of microwave energy are directed to the product surface using a rigid rod or flexible cable type probe. This assembly has no moving parts and no loss of energy due to beam divergence. Multiple coupler and probe types are available to accommodate applications such as knock out drums, feed water heaters, production vessels and separators. 316L stainless steel is the standard probe material however materials such as Hastelloy C-276 and Monel are available for use in acidic or caustic services. Graphic Display with Waveform Screen Widest Selection of Wetted Materials Radar Signal Travels Along the Waveguide – Eliminates False Echoes and Minimizes Signal Loss No Moving Parts Weak Signal Alarm Lengths from 1 to 65 ft. / 0.3 to 19.8 meters Total and Interface Level Measurement from a single process penetration All Digital Electronics 2 Wire Loop Powered Rigid, Flexible Cable & Coaxial Probes
The LM200 Laser is a laser-based distance measuring instrument used in process control systems. The on-board microprocessor calculates distance by multiplying the speed of light by the time it takes for a laser pulse to travel from the instrument to a target and back. The measuring laser uses invisible, infrared light. There is a second, visible aiming laser to help with the alignment of the measuring laser. The laser beams have very little divergence so that accurate targeting is easy even in silos or vessels that have internal structures. Maintenance free, non-contact continuous level sensor Range up to 190 m (623 ft) for level applications Range up to 400 m (1312 ft) for positioning applications Easy and intuitive setup No calibration required Continuous level monitoring for granular solid materials and opaque liquids Measures solids and opaque liquids at any angle Last Pulse Detection for Measurement with Light and Moderate Dust Built-in laser pointer for accurate alignment in narrow or tall vessels Auto-ranging to measure all levels Available non condensing heated optics prevent condensation issues No Beam Divergence = No False Echoes Rugged and Robust Aluminum Enclosure CSA, ATEX and IECEx potentially explosive atmosphere ratings × Enquire about High Performance Laser Distance Level and Position Sensor Name * E-mail ID * Phone * Message
Model 266DRH is a differential pressure transmitter suitable for measuring liquid, gas or steam flow as well as level, pressure and density characterised by the remote seal construction. Thanks to Taylor’s “All-Welded” technology in remote seal manufacturing as well as to the longstanding expertise, 266DRH can offer unmatched total performances and a wide selection of options such as fill fluid, diaphragm material, capillary protection and mounting connections. ABB, leader in severe process measurements, is able to provide the right solution for the most critical process media at extreme ambient and process conditions. The long-term stability and its proven reliability make of 266DRH the best application solution for differential pressure measurements. In addition to the plug-in terminal block, this transmitter features in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with easy setup procedure really helps users by saving time and lowering maintenance and inventory costs. Moreover, the innovative TTG (Through The Glass) technology allow users to configure the instruments in the field without removing the windowed front cover and consequently to save a lot of time. Thanks to the IEC61508 certification (SIL2/SIL3 loops) and the hardware/software redundancy with MTBF of over 100 years, the 266DRH represents the smartest solution in Safety loop applications.
Pressure ranges from 0 ... 100 mbar to 0 ... 25 bar Ex-protection EEx ia I/II C T6 according to ATEX Applicable in all hazardous environments: Gases and vapour: Zone 0, Zone 1 and Zone 2 Dusts: Zone 20, Zone 21 and Zone 22 Maximum tensile strength of the cable 1000N Ingress protection IP 68 (up to 300 m immersion depth)
The flowmeter operation is based on the variable area principle. They can be utilized for measuring the flow of liquids, steam and gases, especially when aggressive or opaque fluids are to be metered. They are indispensable where high pressure and/or high temperature operating conditions exist. The stainless steel primaries as well as the PTFE liner primaries are proven in many applications even under hardest conditions. All devices are available as analog indicator with or without alarms as well as electronic transmitter with 4-20 mA , HART and NAMUR contact outputs and optionally with a graphical display. They can be used in all hazardous areas in flameproof, intrinsic safety or non sparking design.
Sizes: DN 40 … DN 400 Hermetically Sealed Register (IP 68) Patented Hydro Dynamically Balanced Rotor (≤DN 300) Patented Symmetrical Calibration Adjustment (≤DN 300) Register may be Rotated Through 360° High Overload Capability Pattern Approved Removable Measuring Element Powder Coating affords max. corrosion Protection Not Affected by External Magnetic Fields
The volumetric flowmeter are working on oval gear principle and are ideally suited for flow measurement of mechanically pure fluids within a large viscosity range. The simple design makes maintenance easy on site. Only two rotative parts are in contact with the liquid
The visual indicators of flow are equipment used to visually signal the passage of a fluid in a pipe. Are present in the production flow indicators for both horizontal and vertical mounting, suitable for the most varied industrial applications.
ABB’s CoriolisMaster series delivers world-class coriolis mass flowmeters for a wide variety of applications. Wide range of meter sizes provide precise measurement of mass flow, volume flow, density, temperature and concentration. ABB's CoriolisMaster series has a history of success in a wide variety of industries and applications. With innovations like sensor memory, easy set-up and no up or downstream piping requirements - they save time and money during installation, commissioning and maintenance. Benefits of using ABB’s CoriolisMaster flowmeters: Save cost by making several measurements with one device Reduce flowmeter maintenance by up to 90 % No mechanical wear and minimize installation issues Save up to 25 % on pump power Save critical installation space They are some of the most compact coriolis mass flowmeters on the market. With no up or downstream piping requirements they can be installed in the tightest spaces, enabling applications not possible before. Plus, their low pressure drop and wide measurement span save you money compared to other brands and make them the better alternative for many applications. Both new meters offer: Coriolis mass flow advantage - multivariable measurement of mass flow, density and temperature in one device Compact size with no up or downstream piping requirements - get the benefits of coriolis mass flow in tight spaces Low pressure drop - save 25% on pump energy costs compared to other brands Wide measurement span in a single meter - other brands require two meter sizes to meet all applications that costs more in spares and installation Easy to use - features ABB's unique common HMI for easy set-up and commissioning
Irrespective of pressure and temperature, the EE771 flow meter registers mass flow, volumetric flow or standard flow. The flow meter can be used effectively to measure the consumption of compressed air, nitrogen, oxygen, CO2, helium or other non-corrosive gases. The assembly concept with the ball valve permits rapid installation and removal with only a short interruption of the flow. The heart of the flow meter is an E+E hot-film sensor element that, thanks to its high immunity to contamination, guarantees exceptional long-term stability and outstanding accuracy even under the harshest operating conditions. The flow meter’s extensive measuring range from 0.5 to 200 Nm/s (1: 400) and fast response characteristics make it possible to carry out measurements throughout the entire supply system with one and the same device. Even the smallest flow rates are accurately recorded – an essential prerequisite for calculating consumption costs or for finding leaks. At the factory, every flow meter undergoes a strict calibration procedure on a flow calibration installation at a pressure of 7 bar. The outstanding measuring accuracy is confirmed by the calibration certificate that comes with the device. Bus interface for Modbus RTU or M-Bus: Optionally, the flow meter is available with an additional bus interface for MODBUS RTU or M-BUS (Meter-Bus).
The flow rate of liquids, slurries, pastes and sludges can be measured accurately with the AC Master Electromagnetic Flowmeter FSM4000. Minimum conductivity 20 µS/cm (option 0.5 µS/cm) The measurement system consists of a flowmeter sensor and a transmitter in a remote mounted design. It is specially designed to measure liquids in the pulp & paper and the food & beverage industry. Measurements of high pulp stock with consistencies up to 15 % oven dry Ideal for two-phase flow and non-homogeneous fluids Easily measures pulsating flow applications High accuracy 0.5 % of rate Fast start-up without zero adjustments Backwards compatible with older (up to 20 years) flowmeter sensors
The μFLOG4 is an extremely accurate, reliable flow computer with the capability to measure and monitor gas flow in compliance with AGA, API and ISO standards. These units are also expandable to provide additional communications and IO options . Backward compatibility is always of concern and this unit provides that as well . The internal sensors and electronics are direct replacements for existing μFLOs . With low power, accuracy and system integrity built in, these devices are proven daily on thousands of sites. Total flow products provide users the best opportunity for successful projects – site by site or system by system. The μFLOG4 includes an Integrated high accuracy digital Muliti-Variable sensor (IMV) to measure both pressures and temperature . Two (2) versions of the sensor are available: one with differential pressure, static pressure and temperature for DP measurement applications, and one with static pressure and temperature for Linear measurement applications. The IMV is housed inside the flow computer enclosure and is characterised and calibrated at Total flow’s factory . Multi-tube capability is available in each unit and is easily invoked with a few configuration changes and interface connection to external transducers, either digital or analog. × Enquire about Flow Computer Name * E-mail ID * Phone * Message
Sensyflow FMT200-D is our compact specialist for mass balancing of compressed air systems. With a turndown ratio of 1:100, it allows metering and leakage detection together in one instrument. 0(4)..20 mA directly from the sensor head Low pressure drop 1:100 turndown ratio Pipe components with 1” to 3” threads User-friendly handling
The TRIO-WIRL Swirlmeter provides all the advantages of the TRIO-WIRL V by needing shortest upstream/downstream distances, typical 3 x DN/1 x DN. As the Vortex flowmeter the Swirlmeter is based on the principle of Frequency measurement . The system has a freely configurable, two-line LC display for the actual flowrate and totalisation . Settings can be changed directly via 3 push buttons or via magnet sensors with closed housing . Additional to the 4-20mA analog signal a freely configurable switching output is already available . This can be used universally as pulse output, high-low alarms or for system supervision . TRIO-WIRL Swirlmeter are available as compact or remote design with 10m cable length. Size spectrum: DN 15 (1/2”) to DN 400 (16”) Accuracy: max. ± 0.5 ‰ of measured value for liquids, gases and steams. High dynamic measuring range 1:25 DSP converter with most modern digital filter technology for the safe detection of also weakest sensor signals Optionally integrated PT100 e.g. for very economic massflow-measurement of saturated steam or for temperature monitoring/alarms. × Enquire about FV4000 (TRIO-WIRL V) / FS4000 (TRIO-WIRL S) Name * E-mail ID * Phone * Message
Areas of application: Test pumps are used in generating pressure for the testing, adjusting and calibrating of mechanical and electronic pressure measuring instruments by means of comparative measurements. These pressure tests can be carried out in laboratories, workshops or on site at the set measuring point. Ease of operation: When the device under test and a suitably accurate reference measuring instrument are connected to the test pump, after actuating the pump, the same pressure will act on both measuring instruments. Calibration or adjustment of the device under test can be carried out by comparing the two measured values at any pressure value . In order to enable the accurate generation of the measuring points, the test pump is fitted with a fine adjustment valve. Easy handling: Despite its very compact size the CPP30 hand test pump enables simple and accurate test pressure generation up to a max. 35 bar . Vacuum generation down to max. -950 mbar is also possible through the change-over switch. The maximum pressure or vacuum achievable depends on the attached test volume . The pump also has a fine adjustment valve to enable the precise setting of the pressure . The reference instrument is fitted directly to the top of the pump, and the device under test is connected via a connection tube (length 0.5 m) with G ¼“ female thread, included in the test kit.
Due to its versatility the hand-held multifunction calibrator Pascal series is ideally suited for on-field testing and calibration of industrial measuring instruments. The typical application is the calibration of pressure transmitters, temperature transmitters, pressure gauges, temperature probes and other measuring devices. The calibration data are stored in the instrument’s memory. The communication with a PC is used to remotely control the unit and to download the calibration reports. The Pascal 100 is the most advanced portable multifunction calibrator for the measurement and simulation of the following parameters: relative and absolute pressure, electrical signals (mA, mV, V, Ω), temperature (TC, RTD), frequency and pulse. In addition, there is the possibility to include an optional HART® module which allows communication with HART® instruments.
Extensive application possibilities: Stainless steel pressure sensors with measuring ranges up to 1, 000 bar are available for the model CPH6200 hand-held pressure indicator. Therefore, it is particularly suitable as a test instrument for applications such as process technology, machine building etc. The digital indicator automatically detects the measuring range of the connected pressure sensor and guarantees a highly accurate pressure measurement. Functionality: The CPH6200 can be used for measuring both overpressure and absolute pressure. Differential pressure measurement is possible with the 2-channel version CPH6200-S2, and two connected model CPT6200 reference pressure sensors. Selectable pressure units here are bar, mbar, psi, Pa, kPa, MPa, mmHg or inHg . An integrated data logger and various other functions such as Min, Max, Hold, Tare, Zero point adjustment, Alarm, Power-Off, Peak value detection (1, 000 measurements/s), Average value filter, etc. ensure that the CPH6200 can be used for many different applications. Complete test and service cases: For maintenance and service applications, various service case systems are available. These include service cases with or without pressure generation, rechargeable battery, battery charger, connection adapter, etc. Software: In addition to the GSoft data-logger evaluation software for the tabular and graphical representation of the logger data, EasyCal Light calibration software for calibration functions is also available. Certified accuracy: For each reference pressure sensor, the accuracy for the complete measuring chain is certified by a factory calibration certificate which accompanies the instrument
The CPT2500 USB pressure transmitter is suitable for connection to any PC with a USB port, via the CPA2500 USB adapter. For the USB adapter there are stainless steel pressure transmitters available with measuring ranges up to 1, 000 bar. The USB adapter automatically detects the measuring range of the currently connected pressure transmitter and ensures a highly accurate pressure measurement. The USBsoft2500 software is delivered as standard with the USB adapter. With it, all settings for recording the pressure process can be made. The recorded measured values can be graphically displayed and evaluated . The interval for recording can be set in the range of 1 ms ... 10 s. With a recording interval of more than 5 ms the following data is recorded in addition to the current measured value: The mean value over the recording interval The maximum and minimum value during the recording interval. Thus pressure peaks within the overall recording interval can be very easily identified. It is also possible to set start and stop conditions for the recording. In this way it is possible to detect pressure peaks with a resolution of up to 1 ms. The CPT2500 is a thus very well suited to all applications where, over a limited timespan, pressure processes must be recorded and analysed with high resolution. For easy transport and safe storage, the USB adapter is delivered in a compact transport case, which can also hold one or more pressure transmitters.
General: The Precision Loop Calibrator CEP1000 provides significantly extended performance when compared to any competitive calibrator . With an accuracy of 0.015 ‰ of reading, with 0.001 mA resolution, the CEP1000 has the highest accuracy in its class . Features such as a ”‰ ERROR” function, which eliminates manual error calculation and allows the display of the actual versus ideal error at any calibration point, put the CEP1000 way beyond similar instruments. The CEP1000 can simulate, power, and measure two-wire transmitters. With automatic Step and Ramp functions, the CEP1000 enables remote calibration of 4 ... 20 mA devices. Intuitive Handling: A handful of clearly marked keys provide access to the full functionality of the unit . A pair of cursor keys allows rapid selection of the decade to be modified, while a large knob allows precise and rapid adjustment to any value needed . A single MODE key cycles through and selects the source, simulate, and measure modes. Powerful Features: The CEP1000 provides innovative, powerful features to make your calibration job easier. To enable remote calibration of devices and processes, the CEP1000 features automatic STEP and RAMP output modes, which automate either a discrete 4-8-12-16-20-16-12-8-4 mA stair step output, or two speeds of a linear 4-20-4 mA ramp output, respectively . To further aid remote calibration, the CEP1000 features a Minimum/Maximum value recall function . Holding the ”‰ ERROR” key while turning the large knob provides instant feedback of the difference between the ideal and actual current values . Instant verification of whether the device is within its accuracy range is provided. The ”LOOP POWER” key supports a 24 V supply power . In addition an integrated 250 ? HART™ resistor facilitates calibration of HART™ devices. Enquire about Precision Loop Calibrator Name * E-mail ID * Phone * Message
Output current: 20 mA Output voltage: 10 V Output: simulation transmitter Output: power supply current loop Resolution current: 0, 001 mA Resolution voltage: 1 mV Accuracy current: 0, 05% of set value/ 4 µA Accuracy voltage: 0, 05% of set value / 2 mV Supply: 9 V battery Contained in delivery: transportation case, 1 set measuring cable
The compact local readout is extremely user-friendly. The large 4-digit LED digital display is easily readable from any direction due to the rotatable, inclined connecting head. The span is configured using dip switches and a potentiometer. The unit is loop-powered via the 4-20 mA transmitter so no spearate power supply is needed. The connection head with built-in display can be fitted to a large variety of temperature assemblies and is therefore suitable for a wide range of applications. The digital indicator DIH10 is used in machine and plant construction as well as chemical and petrochemical industries, and in all applications where it is necessary to display process data such as temperature locally at the process.
The 695FI Field Signal Indicators represent an easy-to-install solution to display important process variables. Digital LCD or analog meter – allows to select the proper indication Programmable meter and HART configurator – combines signal display with password protected –configuration capabilities for transmitter management Rugged, compact, lightweight, enclosure to IP67 – enables installation in industrial environments Compatible with all 4-20 mA, 2-wire systems Square root signal characterisation – allows measurements linearization Comprehensive certification approvals – give high applicability in plant hazardous areas
The C160 is a highly versatile, 5-digit industrial display indicator, with the capability to measure and indicate temperature, pressure, flow, level and other process variables. High visibility LED display 0.1‰ input measurement accuracy IP66/NEMA4X wall-/pipe-mount weatherproof enclosure Analog and relay outputs as standard Totalizer and math functions Universal process input with transmitter power supply RS485/MODBUS serial communications
The model A-AI-2 attachable indicator is the ideal solution for an on-site display with additional switching functionality for simple signalling or control processes. With its simple mounting and open programmability via the easily accessible push-buttons, it can also be retrofitted quickly to a pressure transmitter which is already operating. The display is loop-powered, and so no additional power supply is needed. The 7 mm high LED display ensures good readability, even in poor lighting conditions. The display settings and the functions of the switch contacts are set via a logically-structured menu. With the assistance of two activatable filters, short spikes can be suppressed and thus the display and the switch response damped. The switch contacts feature open collector outputs that can be used for both min/max alarms and for simple on/off control. With its robust and compact plastic case, the indicator fulfills the ingress protection IP 65 and is thus suitable for a wide range of industrial applications.
Contact protection relays are used in type 821 contact devices. They increase the switching reliability and switching capacity of electromechanical contact devices and lower their contact voltage. Undesired switching operations of contact devices caused by vibrations are significantly reduced by a drop-out delay of 0.5 sec. On the side of the contact they operate with a lower control voltage, however, on the output side they can be highly loaded.