Maintenance, Test & Measurement, Calibration


Measurement devices for HVAC design and maintenance

October 2016 Maintenance, Test & Measurement, Calibration

RS Components has extended its portfolio of high-quality electrical test and measurement devices with five innovative product ranges from Testo. The devices offer measurement capabilities for a diverse variety of electrical systems and appliances, including for use by electrical installation contractors and engineers working in HVAC design and maintenance.

The Testo 760 is an automatic digital multimeter range and provides functionality for all electrical measuring tasks, including function keys that replace the traditional dial for easier operation and greater reliability. Measurement parameters are detected automatically via the assignment of measuring sockets; therefore, it is impossible to make incorrect settings. Three models are available: the standard Testo 760-1, which covers most daily measuring tasks; the Testo 760-2 offering TRMS measurement, an extended current range from μA up to 10 A; and the high-specification 760-3, which has additional features including voltage up to 1000 V and higher ranges for frequency and capacitance.

The Testo 770 clamp meter range is ideally suited to current measurement in switching cabinets, as the device’s unique grab mechanism allows one of the pincer arms to be fully retracted to capture cables in tight spaces. Automatic measurement parameter detection ensures reliable work enabling automation detection of DC and AC and the selection of other parameters such as resistance, continuity, diode and capacitance. It is available in three models: the standard 770-1; the 770-2, which includes a μA range and an integrated temperature adapter for all type K thermocouples; and the 770-3, which offers additional functions such as performance measurement and integrated Bluetooth, allowing the instrument to be connected to the Testo Smart Probes App. Within this app, measurement progression can be shown as a graph or a table and the results can also be directly communicated via email.

The Testo 755 current-voltage tester family is ideal for most daily electrical measuring tasks. Automatically selecting the right settings, the devices have all the important functions for determining voltage/deenergising for measuring current and resistance, as well as for continuity tests. The integrated flashlight enables dark spots to be illuminated and the measuring tips can be changed easily, saving costs in the event of damage.

The three models in the Testo 750 range are the first voltage testers with an all-round LED display, which can be seen from any position and guarantees an ideal voltage indication due to its unique fibre optics. They meet the latest standards including EN61243-3:2010 and CAT IV, as well as providing the most important functions for voltage testing, continuity testing and rotating magnetic field measurement.

Finally, the Testo 745 non-contact voltage tester comes with a voltage range of up to 1000 V and is ideal for the fast initial checking of any suspected fault sources, and provides clear visual and acoustic signals when voltage is detected. The device also has a low-pass filter for high-frequency interference signals and also meets IP67.



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