Electronics Technology

Measuring plus recording with multimeter system

20 November 2002 Electronics Technology

Rishabh Instruments, now locally represented by Tycom, has introduced the RISHmulti series of digital multimeters for precision measurements. The series includes six different models viz RISHmulti 12S-16S which differ in the number of measuring functions, the method of measuring functions (RMS/average), basic accuracy, and the availability of special measurement functions.

All the models have an interface to transfer the measured data to an electronic data-processing system. The multimeters are suitable for the universal measurement in the fields of electrical/electronic engineering, radio and TV engineering, digital technology as well as for electrification, maintenance and other engineering applications.

Safety features

The automatic terminal blocking system (ABS) blocks the terminals not necessary for the particular measurement being performed. This prevents the incorrect connection of the test leads and incorrect setting of the function selector switch. Protection class II, large clearances and creepage distances as well as a contact-safe connection technique offer a very high degree of electrical safety. High precision fuses, protective diodes and overvoltage arresters protect the user from danger and the meter from being damaged in the case of overload.

The meters have complete magnetic and electrical shielding for electro-magnetic compatibility (EMC), while a safety cover of soft rubber protects the meter from damage against accidental shocks.

Measuring functions

In addition to the usual functions (voltage, current, resistance, diode test and continuity test) it is also possible to measure frequency, capacitance, duty cycle and temperature. With AC and composite quantities, a root-mean-square value measurement (TRMS) is easily achieved, regardless of the waveform.

A function selector switch and four pushbuttons permit quick, easy, and safe operation. The multimeter is auto-ranging although the range can also be manually selected and fixed. There is a choice between manual or automatic meter turn-off.

The measured values are shown on an LCD in digital and analog form. For the observation of variations of the measured value around the 'zero' point, the analog scale is also negative ranging.

The meters are fitted with a RS232 C interface with infrared transmission. When connected to a PC, that has the relevant software installed, the recording facilities are enhanced. With the use of Memory adapter SI 232, the user has the advantage of being able to record the measured data without needing an on-site PC - it can be downloaded afterwards. Together with an attachable interface adapter, the RISHcom 100 software, and any commercial PC, the RISHmulti can be configured to make a multimeasurement system.

Each measuring range is precisely calibrated and the meter comes with a test certificate. It is warranted against defects in material, workmanship and calibration for one year.

For more information contact Tycom, 011 787 8508, [email protected]


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Nanometre-precision piezo actuators
RS South Africa Electronics Technology
TDK Corporation has announced two new piezo actuators that are characterised by a wide dynamic range, a high force-to-volume ratio, but with precision in the nanometre range.

Webinar: The evolving electrification of the power distribution system
Infineon Technologies Electronics Technology
New connected car functionality, along with the necessity to reduce the cost, weight and complexity associated with wire harnesses, has led to the transformation of the power distribution system in automotive engineering.

Improved MnZn material for power conversion industry
Sivan Electronic Supplies Electronics Technology
Cosmo Ferrites Ltd, a leading manufacturer of soft ferrites, has launched an improved version of CF295 for the power conversion industry.

Common mode filter for automotive Ethernet
Avnet Abacus Electronics Technology
TDK Corporation has announced the introduction of its new ACT1210E Series common mode filter for automotive Ethernet 10BASE-T1S.

Energising the industrial edge
Electronics Technology
As if the drive to decarbonise energy as part of sustainability and climate change efforts was not enough, the recent rise in energy prices has brought into sharp contrast the need to re-examine how we generate, distribute, and consume electricity.

Samsung begins chip production using 3 nm process technology
EBV Electrolink Electronics Technology
The optimised 3 nm process with GAA architecture achieves 45% lower power usage, 23% improved performance and 16% smaller surface area compared to 5 nm process.

Panasonic releases its updated touch-sensitive knob
Altron Arrow Electronics Technology
Panasonic, in conjunction with Microchip, has launched an update to its existing Magic Knob, a capacitive knob ready for standard touch sensors for use in controlling automotive information displays.

Microchip’s new IC to replace Hall effect position sensors
Altron Arrow Electronics Technology
The LX34070 IC from Microchip is set to help accelerate the global move away from expensive and less accurate magnet-based solutions for safety-critical EV motor position monitoring.

A brief history of HBTs
Conical Technologies Electronics Technology
In 1947 the engineers at Bell Labs were tasked with developing a transistor. This development heralded the beginning of the semiconductor industry which changed the world forever. Transistors would have ...

Research project achieves major advance toward fusion energy
Electronics Technology
New superconducting magnet designed by MIT breaks magnetic field strength records, paving the way for practical, commercial, carbon-free power.