Electricity + Control October 2018

round up PRESSURE + LEVEL MEASUREMENT + INSTRUMENTATION

Portable pressure calibrator WIKA’s portable pressure calibrator model CPH7650 is a compact, portable pressure calibrator, which has been designed for mobile use as well as for stationary workshop and laboratory testing. An integrated electrical pump enables operators to generate pressures up to 20 bar and the integrated electrical module supplies transmitters or sensors with a current of max. 30 mA (voltage (idling) = dc 24 V), in addition to the traditional measurement of current and voltage signals. The exchangeable model CPT6000 reference sensor offers an accuracy of 0.025% of span. The temperature compensation of the built-in sensor safeguards the accuracy for applications in the field. Readings can be displayed in one of 13 standard units. With the portable pressure calibrator, accurate pressure measurements and exact

Fibre optic-based tempera- ture monitoring solution LumaSense Technologies has introduced the m924 Utility Module, designed for real-time Transformer Winding Hot Spot and temperature monitoring between -30 and 200 °C. The module is specifically designed and optimised for Transformer System Monitoring providers and Trans- former Manufacturers wanting to use LUXTRON Fluoroptic ® DipTip and Quality fibre optic temperature probes, cables, and Tank Wall Plates in their equipment. Enquiries: Mecosa.Tel. +27 (0) 11 257 6100 or email measure@mecosa.co.za

current and voltage measurements are possible. In addi- tion, a dc 24 V voltage supply for test items is enabled. Both pressure and electrical measured values are simul- taneously shown in the display. The calibrator is integrat- ed into a robust, dust and waterproof transport case. Thus, the mobile pressure calibrator is particularly suited for use in harsh industrial environments. With the built- in NiMH rechargeable battery, a battery life of approx- imately 50 hours or 125 pump cycles up to 20 bar is guaranteed. The external universal power supply is designed for an operating voltage of ac 100 ... 240 V. Enquiries:WIKA Instruments.Tel +27 (0) 11 621 0000 or email sales.za@wika.com