The dV-2 PS is a sophisticated digital pressure gauge with two independent pressure switch outputs. The gauge employs Keller's proven microprocessor technology to produce highly accurate results. All readings are linearised and temperature corrected, to give an accuracy of 0,2% FS.
There are two independent switches for high and low control functions. These are solid state and therefore not subject to wear. The switch points are programmed directly from the two front panel buttons and a menu system. Alternatively, the dV-2 PS can be connected via the RS485 link to a laptop or PC, and configured using Keller's 'Pressure Switch Console' software. User defined configurations can be stored on the computer for future reference. Pressure sequences can also be monitored and recorded on the PC for application diagnostic purposes using Keller's Read30 software.
Two independent floating switches are available; neither is subject to wear and they can be operated individually as make or break contacts. The switch can provide a window function or be utilised as a hysteresis switch. These switching functions enable the dV-2 PS to carry out control tasks. Respective switch output status is displayed on an LED located on the front.
The dV-2 PS has the following functions:
* High/low - maximum and minimum values are indicated via the select button.
* Reset - allows the maximum and minimum value to be reset at the actual pressure value.
* Zero - sets the zero to any value as a new zero reference. Barometric pressure variations can thus be compensated. The factory setting of the zero for the ranges ≤31 bar is at 0 bar absolute. For sealed gauge pressure measurements, activate 'ZERO SET' at ambient pressure. Instruments with ranges >31 bar are calibrated in a sealed gauge mode with ambient pressure as a zero reference.
* Switch - configuration of the switch outputs. Switch points, switch window, switch hysteresis, open and close.
* Units - pressure can be displayed in bar, MPa or PSI.
Randburg-based Instrotech is the exclusive distributor for Keller products which are Swiss manufactured.
VEGA handles the pressures of water treatment systems VEGA Controls SA
Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.
Read more...Pressure sensors for hydrogen applications Instrotech
Pressure Measurement & Control
Keller manufactures isolated piezoresistive pressure sensors. The great advantage of the piezoresistive measuring principle is its high stability.
Read more...Sensor technology for cartonboard machine for paper and packaging VEGA Controls SA
Pressure Measurement & Control
Paper and packaging specialist, LEIPA undertook a comprehensive modernisation project, combining three stock preparation lines into one, and making investments in new plant components and extensive automation technology. Because of the good experiences the company had already had with VEGA sensors, those responsible for planning and maintenance decided in favour of the VEGABAR 82 pressure transmitter as the standard instrument for level and pressure measurement in the new stock preparation system.
Read more...Pressure measurement without risk of contamination WIKA Instruments
Pressure Measurement & Control
Injectables are among the most sensitive products in the pharmaceutical industry. Sterility is essential during production. For this reason, a manufacturer of biopharmaceuticals decided to implement the pressure monitoring of its processes with hygienic instruments from WIKA.
Read more...Wind turbines with smart sensors Instrotech
Motion Control & Drives
The wind’s usable kinetic energy increases with the wind speed. Wind turbines, therefore, use kinetic energy to generate torque and then rotational movement. The rotor, consisting of three rotor blades, ...
Read more...Infrared camera for condition monitoring and early fire detection Instrotech
Temperature Measurement
The Optris PI 640i thermal imager is the smallest measuring VGA infrared camera, with a body-sized volume of 45 x 56 x 90 mm, and weighing only 269 to 340 g, depending on the lens. It counts among the most compact thermal imaging cameras on the market.
Read more...Pressure monitoring for oil and water tempering machines Instrotech
Pressure Measurement & Control
Temperature plays a significant role in many manufacturing processes. In such cases, a tempering machine is used to maintain the manufacturing process at the desired temperature. Keller supplied PR-21Y piezoresistive pressure transmitters to a client specialising in developing and producing oil and water tempering machines.
Read more...How to look after your pressure gauge SA Gauge
Editor's Choice Pressure Measurement & Control
Pressure and temperature gauges are very widely used on process plants.
Specialising in the design and manufacture of pressure and temperature measuring instruments, SA Gauge believes that all process and ambient factors should be considered when selecting and installing pressure measuring devices. The company recommends that the following guidelines on selection and calibration be followed in order to prevent gauge failure.
Read more...Process measurement solution for Copper Belt’s Kansanshi Mine VEGA Controls SA
Pressure Measurement & Control
Kansanshi Mine faced measurement challenges in its gland water tanks, slurry, and raw materials in the stockpiles and crusher bins. VEGA was able to offer a suitable solution to resolve these challenges.
Read more...Temperature monitoring in the metal casting process Instrotech
Temperature Measurement
During metal casting, the liquid material is poured into a mould, and after solidification becomes a solid body. Both too-high and too-low casting temperatures can lead to quality defects. The compact Optris PI 05M infrared thermal imaging camera from Instrotech can monitor the casting process.
printer friendly version