Sparks Electrical News March 2021

ENERGY MEASUREMENT & SUPPLY

13

Locally developed power supply C ritical equipment including security devices and other electronics can now be operated with locally devel-

EMI filtering and meet EMC standards. These standards are required for effective use in IOT devices, electronics and security applica- tions which includes intrusion, CCTV, access control and automation. The power supplies have subsequently also found favour in the electrical and alternate energy industries or wherever power supplies are required. The range includes:

manufacturers in the East. By setting up our manufacturing operation alongside a large- scale electronics equipment manufacturer we get to enjoy better pricing as a result of the large volumes of components purchased by the manufacturer monthly. “The enclosures are also specially designed for tough African conditions and where possible incorporates innovations that can protect and even avoid damage where batteries may be used or in the event of short-circuits etc. By maintaining strict control of the process, we have the agility to change and customise the power supplies to customers’ requirements and even bring the customer’s own branding onto the supply where sufficient volumes are ordered. “This type of arrangement is only possible as a result of our longstanding relationships with suppliers in the East following dozens of visits and a good understanding of the business culture. As a result, our manufacturing partners work with us to manufacture products that are as good or better than locally available equivalents,” says Pritchard. Local certification He adds that GSS Group power supplies carry SANS IEC 60950, LOA and NRCS certification both ac and dc power supplies and dc UPS, as well as meeting SANS/IEC 61558 certification for its range of linear transformers. The products also incorporate

oped power supplies that have been specially designed to function on the local power grid and have built-in features to make it more robust than standard equipment. GSS Group director, Greg Pritchard, says more than 30 years spent in the security and electronics industries has given the team the best possible understanding of local operating challenges. This has allowed them to develop power supplies that are designed to handle all of South Africa’s extremes, including load shedding, brown-outs and even has circuitry that is better able to deal with the highveld’s well-known lightning storms. Designed and developed by GSS Group, the power supplies are manufactured in a quality-controlled manufacturing plant in China which allows the costs of the high- quality componentry to be incorporated at more affordable prices for the local market. As a result, several of the country’s large security and electronic distributors have already switched to the local brand of power supplies with success. Manufacturing expertise “During my time in the industry I have worked for some of the largest electronic security equipment suppliers and gained decades of experience and long relationships with

• Desktop • 5 V 4 A • 12 V 1-8 A

Aluminium casing • 12 V 3-40 A in 12 V • 24 V 5-10 A

Power distribution • 12 V 4 output 5 A • 12 V 5 output 10 A • 12 V 6 output 6 A • 12 V 9 output 10 A • 12 V 18 output 20 A • Battery backup for a 4-way and 9-way power distribution box DC UPS range Metal enclosure with key lock in • - 4 A for 7 ah backup • - 6.5 A for a 18 ah backup • Plastic enclosure battery leak protection • - 3.2 A 12 V

Enquiries: www.gssgroup.co.za

Extensive range of environmental T&M instruments now available RS Components (RS), a trad- ing brand of Electrocomponents, a global omni-channel solutions partner for industrial custom- ers and suppliers, is now stock- ing a wide range of its own-brand RS PRO environmental test and measurement. These high preci- sion instruments and devices are for engineers and scientists to monitor environmental conditions such as heat, moisture, sound, and light. tings for data capture. In addition to the blackbody and memory card, the camera is supplied com- plete with batteries, video cable, lens cover, card reader, handrails, packing list, carrying case, QC certificate, USB speaker, tripod, power adaptor, and power cables for the camera and blackbody. and quality testing to assure quality, durability, and con- sistency, and come with the RS PRO Seal of Approval. The range is avail- able from RS South Africa and across Sub-Saharan Af- rica.

For more permanent installa- tions, the RS PRO thermal imaging system allows users to visualise heat sources at a safe distance from 3 m to 10 m in real-time us- ing the video output connection to a display. It can be set up for continuous recording 24/7 with critical temperature conditions triggering an automatic alarm for abnormal temperatures. Typical applications include fire detec- tion and scanning up to six peo- ple simultaneously. A blackbody is included to ensure accurate and reliable measurements to within ±0.3 °C. Along with the blackbody, the camera is supplied with client software, QC certificate, power adaptor, and associated power cables. In addition to thermal measure- ment and monitoring equipment, the RS PRO environmental T&M range includes a microwave emis- sions detector. This instrument is typically used by facilities and maintenance engineers to monitor and detect electromagnetic leak- age. The RS PRO sound level me- ter has a dynamic range from 35 dB to 130 dB. Measurement data can be transferred to the user’s mobile phone via Bluetooth for further analysis. The RS PRO environmental T&M equipment range has been through high-calibre compliance

Enquiries: za.rs-online.com

The RS PRO infrared thermom- eter is a handy instrument for tak- ing quick, non-contact tempera- ture measurements and features an easy-to-read display. It has two modes of operation for body and surface measurements taking them from up to 10 cm away with an accuracy of ±0.3 °C. Up to 32 measurements can be stored in the memory, and an alarm value can be set. Applications include measuring forehead temperature, room temperature, and tempera- tures of solids or liquids from 10 °C up to 60 °C. This high-quality RS PRO ther- mal imaging camera provides accurate, fast and reliable tem- perature screening of objects or items. A typical application would be spotting heat leaks in thermal insulation, or to scan body tem- perature. It includes a blackbody to ensure consistent and accurate temperature calibration to ±0.3 °C. Thermal images are displayed on the large screen, making the results easy to read, however, the video output allows connection to a larger display, if required. Data logging is via the 8GB microSD card, which is included, and there is a variety of internal storage set-

SPARKS ELECTRICAL NEWS

MARCH 2021