Archive for the ‘Uncategorized’ Category

Keller and the Internet of Things

Thursday, July 6th, 2017

Wireless Telemetry | Levee District Control: Ditch and River Level Sensing

Monday, September 22nd, 2014

Navionics Research specializes in Radio-Telemetry / Controls / SCADA System Integration for Water Utilities, Flow Metering, Variable Frequency Drives, Motorized Valves, Electronic Circuit Design, Software Development.

For a recent application involving Keller pressure transmitters, visit the link below:

Wireless Telemetry | Levee District Control: Ditch and River Level Sensing.

Data logger measures level, conductivity and temperature

Wednesday, July 23rd, 2014

With the new CTD (conductivity, temperature, depth) versions of the high precision DCX level data loggers for depths of up to 200 m, KELLER AG offers a highly integrated, complete pressure measurement solution for water management. This data logger for long ­term monitoring stores over 50’000 time-stamped level measurements, as well as the associated conductivity and temperature readings in each case. The multi­purpose probes have a diameter of 22 mm, making them suitable for all sounding tubes with a nominal diameter of 1” or greater.

Conductivity crucial as standard process value

Water conductivity is a measure of purity, making it an important standard process measurement in the water and sewerage sector as well as in the beverage and pharmaceutical industries. Changes in conductivity are a clear indicator of contamination, for example with particles or salts (chlorides, nitrates, etc.). Typical values lie between >50 ms (salt water) and <5 µS (pure water). KELLER supplies conductivity probes combined with level probes based on pressure sensors. These integrated measuring systems are ideal for checking the ingress of seawater, slurry or fertilizer into groundwater, rivers and lakes, or for performing observation tasks relating to building projects or localized water pollution. The Series DCX­22 CTD level probes with integrated data logger are available with a robust 316L stainless steel housing or other materials, if necessary, for enhanced chemical compatibility.

Level measurement: a core competency

KELLER AG für Druckmesstechnik has long been a leading supplier of maintenance ­free, battery ­operated level probes with remote data logger for observations at depths of up to 200 m and optional GSM module for remote access. With level measuring tolerances of ± 0,02 %FS, Keller’s extensive portfolio ranges from data loggers with conventional relative pressure sensors to level probes featuring two isolated absolute pressure sensors that compensate for ambient pressure deviations electrically or using software. All Series DCX­22 products are now available as CTD level probes with integrated conductivity and temperature sensor. At a rate of one measurement per hour, the integrated lithium battery has a life of up to 8 years.

Conductivity probe with six electrodes

In line with Swiss quality standards for pressure sensors, the DCX­22 level measuring probes are equipped with high precision conductivity sensors. Four platinum electrodes on the outside supply a set alternating current, while two on the inside detect voltage in order to measure the conductivity of the medium. For measuring conductivity, the four measuring ranges of 0…200 µS/cm, 0…2 mS/cm, 0…20 mS/cm and 0…200 mS/cm, with a measuring accuracy of ± 1 %, can be used. Since water conductivity is highly temperature dependent, a Pt1000 sensor measures the temperature of the medium directly between the electrodes to a degree of accuracy of 0,1 °C, ensuring that the measured conductivity is accurately standardized to the reference temperature of + 25 °C.

Measuring software for long-term monitoring

Keller’s Logger 5.1 software is compatible with Windows XP or higher and is included, free of charge. This sophisticated software enables configuration of logger instruments and data download. Recorder values can be displayed in tabular or graphical form and easily sent to end users or authorities. A particularly notable feature is the ability to graphically display air pressure ­compensated level curves at the same time as conductivity and temperature curves.

Dodd-Frank Wall Street Reform and Consumer Protection Act Compliance

Thursday, May 15th, 2014

DFWSRCPA HeaderAs a responsible corporation and global citizen, Keller is pleased to participate in endeavors that aim to improve quality of life. Though, as a private corporation we are not required to do so,  we are pleased to comply with Section 1502 (DRC Conflict Minerals) of the Dodd-Frank Wall Street Reform and Consumer Protection Act.

To download a copy of our compliance statement, please click here.

New Keller Video Showcases Pressure Measurement Technology

Thursday, April 3rd, 2014


This newly produced video details Keller’s origins and the products that have made it a world leader in pressure measurement technology.

IEC Certification for LEO Record Ei and LEX-1 Ei

Thursday, August 8th, 2013

Leo Record Ei
Keller is pleased to announce the IEC Ex approval for the LEO Record Ei and LEX Ei gauges.  The registration can be found here.

If a signed copy of the certification is required, please contact Keller America.

Keller Interface Converters

Wednesday, February 27th, 2013

The K-114 interface converter replaces the existing K-104 converter, although this model will also remain compatible with all KELLER digital products in the future. This means that there is no need to replace existing converters.

The K-114 interface converter is used primarily in conjunction with KELLER products that have an RS485 interface, such as Series DCX, Leo Record, Series 3X / 4X or GSM-2.

The RS485 half-duplex signal from connected devices is converted into a USB signal by the interface converter, which can therefore be connected to any desired computer with a USB port.

For more information on the K-114 converter and its capabilities, click here.

Keller Digital Pressure Gauges

Wednesday, February 6th, 2013

Keller digital pressure gauges (a.k.a. digital manometers) are a cost-effective solution in any pressure monitoring scenario where a local display is required. Features include min/max display, selectable units, 5 kHz scan rate for transient capture and data recording. These devices can also be built for service in oxygen applications.

These instruments are commonly used as fuel pressure gauges, hydraulic test pressure gauges, water pressure gauges and oil pressure gauges. Almost any installation previously utilizing mechanical or hydraulic pressure gauges can benefit from an upgrade to Keller technology.

Manufactured 100% in-house, Keller products incorporate the latest in microprocessor-based electronics and rugged, weather-proof enclosures, resulting in outstanding performance over a wide temperature range at reasonable cost.

For more information on the best Keller pressure gauge for your application, contact Keller today!

The move is on!

Tuesday, October 9th, 2012

Keller America is pleased to announce that we will begin operations in our new state of the art facility on Monday, October 29, 2012.  The new facility incorporates the newest innovations in Keller manufacturing technology to allow us to provide the best possible quality and service to our customers.  To facilitate this transition, normal operations at our old location will be suspended on Thursday, October 24th and Friday, October 25th.  A customer service representative will still be available during normal business hours on these days to answer your calls.  Normal operations at the new facility will resume on Monday, October 29nd.

Please be advised that any orders taken for stock products and Keller America transmitters taken after October 19th may be affected during this transition.  Orders for stock products will be shipped as possible up until Wednesday, October 24th.  Shipments for stock products will resume on Monday, October 29nd.  Please allow 5-7 business days for shipment of Keller America level and pressure transmitters taken after October 19th.  After approximately one week in the new facility, normal three business day shipment of Keller America level and pressure transmitters should resume.

WaterWorld prodcast from ACE 2012 starring Chris Lilly

Tuesday, July 24th, 2012

Chris Lilly discusses Keller level and pressure transmitters with Angela Godwin with WaterWorld. We have had a great deal of success with the AWWA tradeshow and we look forward to next year’s show. Special thanks to WaterWorld and Angela Godwin for the footage!