Company details for:
Eltek Ltd
(0)
35 Barton Road,
Haslingfield,
Cambridge,
CB23 1LL,
United Kingdom
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Products
Transmitters for Monitoring Digital State
20 and 30 Series
GS24 and GD24
4 state inputs (or K/T thermocouples -200 to +200°C), e.g. door open/close.
GS34/GS38 and GD34/GD38
4 / 8 state inputs (or thermistor), e.g. door open/close.
GS24 and GD24
4 state inputs (or K/T thermocouples -200 to +200°C), e.g. door open/close.
GS34/GS38 and GD34/GD38
4 / 8 state inputs (or thermistor), e.g. door open/close.
Transmitters for Air Quality Monitoring
AQ110A is part of the Eltek GenII family of transmitters and can be used alongside any other Eltek GenII transmitter. AQ110A is a comprehensive portable air quality monitor for primarily indoor use. The compact monitor is normally AC mains powered. A built-in Li-ion rechargeable back-up battery is included. The internal sensors are: 1 x CO2 0/5000ppm 1 x CO 1 x NO2 1 x VOC 3 x Particulate sizes and airflow 1 x DC voltage input - for use with an analogue out from a sound pressure level meter 1 x External supply monitor. In addition, there is a case-mounted RH and temp sensor with renewable filter. An outdoor enclosure is available for this product.
Transmitters for Electricity Monitoring
GD40A & GD40AB
Need to know how electrical energy is being used? The GenII GD40A/AB transmitter and clip-on self powered CTs can provide the answer. The four GD40A/AB sensor inputs are designed for ND Meter SXD CTs. The transmitter is intended for use in situations where an averaged rather than instantaneous value at the time of transmission is required.
Ideal for retrofit - just clip round the cable
Non invasive energy monitoring
Ideal for temporary system
Range of compact clip-on CTs: 5 / 10 / 20 / 30 / 50 / 100 or 200A available. Other ranges available P.O.A
Use different CT types on each of the transmitter inputs
Ideal for comparing values
Scrolling display of scaled values with battery condition gauge
Provides average current value per transmitter interval
Battery or mains powered. The internal battery pack is for short term use only and provides typically 10 weeks operation at a 5 minute tx interval.
Need to know how electrical energy is being used? The GenII GD40A/AB transmitter and clip-on self powered CTs can provide the answer. The four GD40A/AB sensor inputs are designed for ND Meter SXD CTs. The transmitter is intended for use in situations where an averaged rather than instantaneous value at the time of transmission is required.
Ideal for retrofit - just clip round the cable
Non invasive energy monitoring
Ideal for temporary system
Range of compact clip-on CTs: 5 / 10 / 20 / 30 / 50 / 100 or 200A available. Other ranges available P.O.A
Use different CT types on each of the transmitter inputs
Ideal for comparing values
Scrolling display of scaled values with battery condition gauge
Provides average current value per transmitter interval
Battery or mains powered. The internal battery pack is for short term use only and provides typically 10 weeks operation at a 5 minute tx interval.
Transmitters for Air Velocity Monitoring
The GS41AV transmitter is designed for use with the E plus E series of air velocity sensors, types EE660 or EE576. Highly accurate readings can be achieved down to 0m/s. The combination has proved ideal where air laminar flow in ducted heating / ventilation systems in domestic or industrial installations needs to be monitored.
The E plus E sensor head uses a field proven hot-film element to measure velocity by detecting the change in temperature as air moves past it, cooling the element. This technique means the sensor is less sensitive to dust and dirt, giving very stable results. An alignment strip along the probe's tube allows the user to set a measured probe depth during mounting in a pipe or duct. This provides a method for repeatedly mounting probes to an accurate known depth.
The value logged is the rolling averaged value over a three minute cycle, meaning that transient values or deviations from the norm are not lost when logging.
The E plus E sensor head uses a field proven hot-film element to measure velocity by detecting the change in temperature as air moves past it, cooling the element. This technique means the sensor is less sensitive to dust and dirt, giving very stable results. An alignment strip along the probe's tube allows the user to set a measured probe depth during mounting in a pipe or duct. This provides a method for repeatedly mounting probes to an accurate known depth.
The value logged is the rolling averaged value over a three minute cycle, meaning that transient values or deviations from the norm are not lost when logging.
Transmitters with Inputs for Differential Pressure Sensors
The GD84 Differential Pressure transmitter targets clean room applications and allows differential pressure (+/- 250 pascal) to be monitored in a single compact transmitter. The precision diaphragm solid state sensor is automatically compensated for barometric pressure and is not affected by the mounting attitude of the transmitter. The high quality quick-disconnect connector system is used to attach 6mm internal diameter tubing. An LCD provides immediate readings of differential air pressure. Using licence exempt radio enables ranges of up to 300 metres in a built environment, or up to 2km with line of sight.
The GD84 can be used with RX250AL/SC250 (Secure data CFR21 Part11) receiver loggers, RC250 receiver only and WSR, Wireless Sensor Receiver.
The GD84 can be used with RX250AL/SC250 (Secure data CFR21 Part11) receiver loggers, RC250 receiver only and WSR, Wireless Sensor Receiver.
SRV450 - Receiver Logger with 4G Connectivity
SRV450 is the newest receiver logger from Eltek designed for use with the extensive range of GenII transmitters. It is intended for users who require real time data, multiple site access and advanced analytical software. Communications from the SRV450 to the remote server is via mobile data providing a truly single box solution.
SC250 Receiver / Logger
The SC250 is the hub of the secure logging system, for use with Eltek's Darca Secure software. It is not necessary to have a permanently connected PC and the built-in battery means data logging is not interrupted if there is a temporary AC supply failure. Alarms are included as standard (SMS and local) and include grouping so that alarms for individual departments can be configured.
Features
Data Logger with integral receiver
Alarms are logged
Data is checksummed to prevent corrupted data from being downloaded
247K readings expandable to 2M readings
Alarm raised if external power removed (e.g. mains failure)
Grouping for alarm text messages
Extensive communications options
Features
Data Logger with integral receiver
Alarms are logged
Data is checksummed to prevent corrupted data from being downloaded
247K readings expandable to 2M readings
Alarm raised if external power removed (e.g. mains failure)
Grouping for alarm text messages
Extensive communications options
Squirrel 450/850 Series Data Logger
4 or 8 Multi-purpose inputs
The Squirrel 450/850 series is a cost effective portable data logger with a maximum of 4 or 8 inputs. In common with its bigger brother, the Squirrel 1000 series data logger, it is equipped with impressive specifications, long battery life and a three year guarantee. Models 451 and 851 have 4 or 8 universal inputs respectively, configurable for voltage, current and temperature for both thermocouple and thermistor sensors. In addition a serial interface is available for special applications, including Vaisala weather sensors WMT52 & WXT520.
The Squirrel 450/850 series is a cost effective portable data logger with a maximum of 4 or 8 inputs. In common with its bigger brother, the Squirrel 1000 series data logger, it is equipped with impressive specifications, long battery life and a three year guarantee. Models 451 and 851 have 4 or 8 universal inputs respectively, configurable for voltage, current and temperature for both thermocouple and thermistor sensors. In addition a serial interface is available for special applications, including Vaisala weather sensors WMT52 & WXT520.
1000 Series Customised Squirrel Data Loggers
Eltek 1000 Series Squirrel data loggers provide a flexible combination of channels, ranges, memory sizes and extra options. If there is not already a model which fits a particular application, then Eltek can almost certainly make one.
Squirrel Data Loggers for Energy Management
For the electricity energy sector
These specialist data loggers and accessories are tailored for the electricity energy sector and facilitate the metering and recording of AC voltage, current and temperature using a single comprehensive and accurate instrument.
Squirrel 1010/1010X and 1020/1020X energy series dataloggers and accessories enable quick, easy metering, monitoring and logging of load usage patterns enabling optimisation of power distribution, ultimately leading to improved reliability of power availability and power distribution plant costs.
The Squirrel 651 datalogger is specially designed for use with the Northern Design NDRail350 (1 x 3 phase load) or NDRail310 (3 x single phase load) energy meters.
These specialist data loggers and accessories are tailored for the electricity energy sector and facilitate the metering and recording of AC voltage, current and temperature using a single comprehensive and accurate instrument.
Squirrel 1010/1010X and 1020/1020X energy series dataloggers and accessories enable quick, easy metering, monitoring and logging of load usage patterns enabling optimisation of power distribution, ultimately leading to improved reliability of power availability and power distribution plant costs.
The Squirrel 651 datalogger is specially designed for use with the Northern Design NDRail350 (1 x 3 phase load) or NDRail310 (3 x single phase load) energy meters.
Mini Squirrel Data Loggers - MS13E & MS14E
The GenII MS Mini Squirrel is a new series of compact stand-alone data loggers.
The first release of the GenII MS Mini Squirrel series is intended for RH, temperature and CO2 applications.
The dataloggers are of rugged construction, battery operated and ideal for short or long term environmental monitoring.
The first release of the GenII MS Mini Squirrel series is intended for RH, temperature and CO2 applications.
The dataloggers are of rugged construction, battery operated and ideal for short or long term environmental monitoring.
Darca Lite - Analysis Software
Eltek's Darca Lite software allows configuration, download and analysis of Mini Squirrel devices.
Darca Lite key features:
Fully compatible with Darca Plus data
Data can be exported into text format for analysis in a spreadsheet package
Squirrel channels may be scaled into appropriate engineering units
Alarm feature warns if any channel inputs are outside "‘safe" limits
Print graphs
View data in real time
Download data with or without stopping logging
Darca Lite key features:
Fully compatible with Darca Plus data
Data can be exported into text format for analysis in a spreadsheet package
Squirrel channels may be scaled into appropriate engineering units
Alarm feature warns if any channel inputs are outside "‘safe" limits
Print graphs
View data in real time
Download data with or without stopping logging
Darca Plus - Download & Analysis Software
Key features:
All operational control of the Squirrel may be performed using the PC
Data can be exported into text format for analysis in a spreadsheet package
Squirrel channels may be scaled into appropriate engineering units
Alarm feature warns if any channel inputs are outside "‘safe" limits
Squirrel configuration may be saved as a Setup File and then applied to other Squirrels
Displays all selected channels on screen simultaneously
Contact Wizard guides you through the stages of contacting the Squirrel
"Shed" utility allows scheduled, automated downloading of data from the Squirrel
Transmitter setup for the Gen II Telemetry System
Powerful graphing tools display real-time or historical data: 3D plots, line, event and windrose
Plot colour and axis configuration can be saved
Text comments can be added to points of interest on a graph
Summary window displays data and statistical information
All operational control of the Squirrel may be performed using the PC
Data can be exported into text format for analysis in a spreadsheet package
Squirrel channels may be scaled into appropriate engineering units
Alarm feature warns if any channel inputs are outside "‘safe" limits
Squirrel configuration may be saved as a Setup File and then applied to other Squirrels
Displays all selected channels on screen simultaneously
Contact Wizard guides you through the stages of contacting the Squirrel
"Shed" utility allows scheduled, automated downloading of data from the Squirrel
Transmitter setup for the Gen II Telemetry System
Powerful graphing tools display real-time or historical data: 3D plots, line, event and windrose
Plot colour and axis configuration can be saved
Text comments can be added to points of interest on a graph
Summary window displays data and statistical information
Darca Heritage Versions 1 & 2
Site-based data acquisition, analysis and reporting software
Darca Heritage has been designed specifically for museum curators and conservators monitoring large installations. The software allows sensors to be referred to according to their physical location. Sophisticated but simple-to-use, it provides powerful tools for:
Configuring and metering sensors
Changing logger settings
Updating site data automatically to a datafile (version 1) or database (version 2)
Warning if any channel inputs are outside of safe limits
Sending alarms via email or text message
Metering data graphically on user-defined floorplans which show each group's physical location
Analysing data either graphically or statistically
Generating reports for the presentation of data
In addition to standard measured values, calculated parameters may be added and analysed. Sensors may also be metered graphically on user-entered floor plans.
Darca Heritage has been designed specifically for museum curators and conservators monitoring large installations. The software allows sensors to be referred to according to their physical location. Sophisticated but simple-to-use, it provides powerful tools for:
Configuring and metering sensors
Changing logger settings
Updating site data automatically to a datafile (version 1) or database (version 2)
Warning if any channel inputs are outside of safe limits
Sending alarms via email or text message
Metering data graphically on user-defined floorplans which show each group's physical location
Analysing data either graphically or statistically
Generating reports for the presentation of data
In addition to standard measured values, calculated parameters may be added and analysed. Sensors may also be metered graphically on user-entered floor plans.
Temperature Sensors
Sensor Types
Thermistors
For Ambient Temperatures
Thermistors are ideal for ambient temperatures as they combine fast response time and accuracy. Range extremes are -50°C to + 150°C. Long cable lengths can be used.
Accurate at High Temperatures
PRTs are best suited for measuring temperatures down to -100°C and up to +600°C with good long term stability and accuracy. Due to the small change in resistance of PRTs, cable resistance can affect the accuracy of the sensor. Three or preferably four wire cables should be used and long lengths should be avoided. Eltek products support only PT100 Platinum Resistance Sensors.
Thermistors
For Ambient Temperatures
Thermistors are ideal for ambient temperatures as they combine fast response time and accuracy. Range extremes are -50°C to + 150°C. Long cable lengths can be used.
Accurate at High Temperatures
PRTs are best suited for measuring temperatures down to -100°C and up to +600°C with good long term stability and accuracy. Due to the small change in resistance of PRTs, cable resistance can affect the accuracy of the sensor. Three or preferably four wire cables should be used and long lengths should be avoided. Eltek products support only PT100 Platinum Resistance Sensors.
Capacitive Humidity & Temperature Probes
The RHT10E & RHT20E are cost effective, compact and robust RH and temperature probes for use with Eltek GenII transmitters (the probes are not suitable for other applications).
The sensor is housed in a replaceable protective cap with a non-removable stainless steel (grade 316) 100 micron dust filter.
The RHT10E & RHT20E are intended for indoor, non-condensing applications. The RH and temp sensor is removable thereby permitting exchange or calibration.
The lead is non detachable and can be ordered at a user-specified length from 1m up to 10m.
The sensor is housed in a replaceable protective cap with a non-removable stainless steel (grade 316) 100 micron dust filter.
The RHT10E & RHT20E are intended for indoor, non-condensing applications. The RH and temp sensor is removable thereby permitting exchange or calibration.
The lead is non detachable and can be ordered at a user-specified length from 1m up to 10m.
pH Sensors for 450/1000 Series Squirrel Data Loggers
1000 series Squirrel pH inputs are designed to interface with a variety of proprietary pH electrodes. Our solutions can be tailored to meet your requirements. Please contact Eltek for more information.
LS50 & LS70 Light Sensors
There are many areas where the effects of light have to be monitored and logged, typical applications include measurement of light falling on museum exhibits. Both visible light and UV light components need to be identified and measured. The LS50 ("light puck") and LS70 modules utilise the museum and conservation industry preferred Elsec - Littlemore light / light and UV sensors.
The Eltek GD72E transmitter interfaces with all sensors at digital level so that no system accuracy is lost.
When used with Darca Heritage software both instantaneous and cumulative light and UV values can be provided.
The Eltek GD72E transmitter interfaces with all sensors at digital level so that no system accuracy is lost.
When used with Darca Heritage software both instantaneous and cumulative light and UV values can be provided.
ELCC - AC Supply Presence Failure Detection
The ELCC is a simple transducer for detecting presence or failure of an AC supply. An isolated contact is provided which indicates AC available if closed and AC absent or failed if open.
The ELCC is intended for use with GenII transmitters types GC60, GS24/GD241 and GS34/8/GD34/82.
This state change can be detected and interpreted by the logger as an alarm condition, so that the logger alarm relay will provide a contact closure or send an SMS alarm message if configured.
The ELCC is intended for use with GenII transmitters types GC60, GS24/GD241 and GS34/8/GD34/82.
This state change can be detected and interpreted by the logger as an alarm condition, so that the logger alarm relay will provide a contact closure or send an SMS alarm message if configured.
Sensors for Incubator Monitoring
Carbon dioxide sensors for incubators with a range of up to 20% CO2.
The probe section can be extended on a 2m lead and can be mounted in the environment to be monitored (e.g. an incubator) with the preferred RH and temp or temperature only probe.
The Vaisala sensors require an external power supply in order to be used with the GD43E transmitter.
The probe section can be extended on a 2m lead and can be mounted in the environment to be monitored (e.g. an incubator) with the preferred RH and temp or temperature only probe.
The Vaisala sensors require an external power supply in order to be used with the GD43E transmitter.
Weather Sensors
Vaisala WXT536 Weather Sensor
Measures:
Air Pressure
Temperature
Humidity
Rainfall
Wind Speed
Wind Direction (Eltek graphing software does not include wind rose plots.)
The WXT536 supplied by Eltek is preconfigured and includes a 26.7mm or 30mm diameter pole top adaptor and 3m connecting lead.
WXT536
Vaisala WXT532 Wind Sensor
Measures:
Wind Speed
Wind Direction (Eltek graphing software does not include wind rose plots.)
The WXT532 supplied by Eltek is preconfigured and includes a 26.7mm or 30mm diameter pole top adaptor and 3m connecting lead.
Measures:
Air Pressure
Temperature
Humidity
Rainfall
Wind Speed
Wind Direction (Eltek graphing software does not include wind rose plots.)
The WXT536 supplied by Eltek is preconfigured and includes a 26.7mm or 30mm diameter pole top adaptor and 3m connecting lead.
WXT536
Vaisala WXT532 Wind Sensor
Measures:
Wind Speed
Wind Direction (Eltek graphing software does not include wind rose plots.)
The WXT532 supplied by Eltek is preconfigured and includes a 26.7mm or 30mm diameter pole top adaptor and 3m connecting lead.
Pyranometer Sensors
CMP3
Kipp and Zonen CMP3 sunshine pyranometer. A mounting bracket/base may be required. (e.g PyroBkt below). The CMP3 does not require power.
CMP3
Skye SKS1110 sunshine pyranometer
SKM221 levelling unit and SKM226 mounting bracket may be required (see image to the right). The SKS1110 does not require power.
SKS1110
Accessories
PyrBkt
This is a pole mount robust bracket pre-drilled for use with the Kipp and Zonen CMP3 and the SKS1110.
The mounting bracket positions the centre of the CMP3 approximately 155mm from the mounting pole. A stainless steel U bracket with securing nuts is included.
Kipp and Zonen CMP3 sunshine pyranometer. A mounting bracket/base may be required. (e.g PyroBkt below). The CMP3 does not require power.
CMP3
Skye SKS1110 sunshine pyranometer
SKM221 levelling unit and SKM226 mounting bracket may be required (see image to the right). The SKS1110 does not require power.
SKS1110
Accessories
PyrBkt
This is a pole mount robust bracket pre-drilled for use with the Kipp and Zonen CMP3 and the SKS1110.
The mounting bracket positions the centre of the CMP3 approximately 155mm from the mounting pole. A stainless steel U bracket with securing nuts is included.
Retrofit Energy Meters
NDRail350 - DIN rail mounting energy meter (1 x 3 phase load)
NDRail310 - DIN rail mounting energy meter (3 x 1 phase loads)
DSP10-12 - DIN rail mounting AC to 12VDC power supply from TDK
NDRail310 - DIN rail mounting energy meter (3 x 1 phase loads)
DSP10-12 - DIN rail mounting AC to 12VDC power supply from TDK
Sensors for Tilt & Crack Measurement
Tilt Sensor
Soil Instruments C12 inclinometer
Measures tilt in g (gravity), output is in ° of tilt
Automatic temperature compensation of (g) data
Stainless Steel construction, waterproof to 2000kPa
Calibrated Range: ±3°
Sensor accuracy: ±0.05% full scale
Operating temperature: -20 to +80°C
Repeatability: ±0.01% full scale
Weight (without cable): 540g
Dimensions: 192mm x Ø32mm
10m max cable length
Soil Instruments C12 Inclinometer
Crack Sensor
Penny & Giles Ltd SLS130 Linear displacement sensor
Sealing to IP66 and corrosion resistant rod end bearings
Cable integrally moulded
13mm body diameter
Self aligning bearings
Body clamp or flange mounting
Spring operated shaft kit
Protective sleeve
Operating temperature: -30 to +100°C
Electrical stroke: 50mm = 0-2kW
Shaft length: 173.6mm
10m max cable length
Resolution: 0.0125mm (0-4000 bits). Displayed to 3 d.p.
Soil Instruments C12 inclinometer
Measures tilt in g (gravity), output is in ° of tilt
Automatic temperature compensation of (g) data
Stainless Steel construction, waterproof to 2000kPa
Calibrated Range: ±3°
Sensor accuracy: ±0.05% full scale
Operating temperature: -20 to +80°C
Repeatability: ±0.01% full scale
Weight (without cable): 540g
Dimensions: 192mm x Ø32mm
10m max cable length
Soil Instruments C12 Inclinometer
Crack Sensor
Penny & Giles Ltd SLS130 Linear displacement sensor
Sealing to IP66 and corrosion resistant rod end bearings
Cable integrally moulded
13mm body diameter
Self aligning bearings
Body clamp or flange mounting
Spring operated shaft kit
Protective sleeve
Operating temperature: -30 to +100°C
Electrical stroke: 50mm = 0-2kW
Shaft length: 173.6mm
10m max cable length
Resolution: 0.0125mm (0-4000 bits). Displayed to 3 d.p.
About us
Established in 1985, Eltek Ltd has accumulated extensive experience in delivering specialised portable data loggers for various applications. Headquartered in Cambridge, this small, adaptable UK company emphasises its accessibility and flexibility. We take pride in providing an exceptional, personalised service to all our customers. Regardless of your specific market sector, Eltek's cost-effective and versatile range of data logging, radio telemetry, and software products is highly likely to fulfil your environmental monitoring needs.
Our in-house hardware and software design teams, located in Cambridge, oversee your project from inception to completion. We are dedicated to assisting and guiding you through the design, procurement, and installation stages of your custom equipment. Moreover, we remain readily available via phone support once everything is operational to address any concerns or inquiries.
The company is committed to enhancing customer service while introducing cost-effective and adaptable data logging, radio telemetry, and software products customised to the distinct requirements of each market sector. Whether in pharmaceuticals, transportation, museums, warehousing, or production control and monitoring, Eltek assures its customers of the highest level of service and the best possible product solutions.
Our Data Logging Solutions Include:
Transmitters
Wireless devices for data measurement.
Receivers / Loggers
Receive and record data from transmitters.
Wired Data Loggers
Flexible design featuring a variety of sensor types.
Mini Data Loggers
Mini Squirrel data loggers designed for individual measurement points.
Software
Software for downloading and analysing data on Windows.
Sensors
Precise sensors for measuring purposes.
In 2017, Eltek's Quality Management System received approval according to the ISO9001:2015 standards for designing, manufacturing, and supplying data loggers and related equipment. Certificate number: 14125379.
Eltek has rightfully gained recognition for its quality and exceptional customer service in the industry, catering not only to its agents but most importantly to the end-users. We are always open to discussing requirements and addressing concerns with users, allowing direct communication with the individuals responsible for designing and manufacturing your loggers.
Our in-house hardware and software design teams, located in Cambridge, oversee your project from inception to completion. We are dedicated to assisting and guiding you through the design, procurement, and installation stages of your custom equipment. Moreover, we remain readily available via phone support once everything is operational to address any concerns or inquiries.
The company is committed to enhancing customer service while introducing cost-effective and adaptable data logging, radio telemetry, and software products customised to the distinct requirements of each market sector. Whether in pharmaceuticals, transportation, museums, warehousing, or production control and monitoring, Eltek assures its customers of the highest level of service and the best possible product solutions.
Our Data Logging Solutions Include:
Transmitters
Wireless devices for data measurement.
Receivers / Loggers
Receive and record data from transmitters.
Wired Data Loggers
Flexible design featuring a variety of sensor types.
Mini Data Loggers
Mini Squirrel data loggers designed for individual measurement points.
Software
Software for downloading and analysing data on Windows.
Sensors
Precise sensors for measuring purposes.
In 2017, Eltek's Quality Management System received approval according to the ISO9001:2015 standards for designing, manufacturing, and supplying data loggers and related equipment. Certificate number: 14125379.
Eltek has rightfully gained recognition for its quality and exceptional customer service in the industry, catering not only to its agents but most importantly to the end-users. We are always open to discussing requirements and addressing concerns with users, allowing direct communication with the individuals responsible for designing and manufacturing your loggers.
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