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The Fluke 715 Volt mA Calibrator delivers outstanding performance, durability, and reliability in a compact, lightweight tool. Offered in the rugged Fluke 80 Series digital multimeter package, the calibrator measures loop current as well as voltage output. It sources voltage to 200 mV or 20 V, measures loop current (0-20 mA, 4-20 mA) signals with 0 .01 % accuracy, and 1 µA resolution, and measures voltage output process signals from PLCs and transmitters. It can source or simulate 4-20 mA loop current and provides a 24 V loop supply with simultaneous current measurement.
The 715 is also extremely easy to use with a simple push button interface. It features the rugged construction that Fluke tools are known for and is EMI tolerant as well as dust and splash resistant. It also features a removable battery door for quick battery changes after the 18 hours of battery life the 9 V battery provides. And the tool also comes with a protective yellow holster with test lead storage. For added convenience the Fluke 715 is also compatible with the ToolPak magnetic meter hanging system.

Enabling accurate and repetitive tests of high-current breaking devices through adaptive current injection
The SPI500 is a powerful and versatile testing system designed to meet the demanding needs of substation testing. It can handle a wide range of high-current tests, including those for electronic reclosers, circuit breakers, high-speed fuses, and ground fault relays.
With the ability to control up to two SPI500B boosters, the SPI500 can increase its testing capacity by up to three times. Its unique control system ensures accurate and reliable testing, even under changing load conditions.
The SPI500 offers both manual and automatic control options, with the Smart Touch View Interface (STVI) providing easy-to-use manual control and the PC-based control system enabling fully automated testing and report generation.
The SPI500 can test self-powered reclosers like the S&C Tripsaver with the push of one button. Also, the most portable test set for testing breakers under 600 A or for testing Modified Differential Ground Fault schemes (MDGF).


The VLF Sine 37 kV with integrated tan delta is a compact, durable, and highly portable test and diagnostic system designed for medium-voltage (MV) cable networks.
Combining robust performance with practical mobility, the VLF Sine 37 stands out as the most powerful portable unit in its class, capable of testing up to 1.6 μF @ 26 kVRMS, making reliable testing and diagnostics of cables longer than 5 km effortless.
The unit is a truly multifunctional tool. It performs:
Thanks to its smart frequency control, the system automatically adjusts the test frequency based on cable length, ensuring testing even on 15 kV-rated cables up to 25 km long.
As an Authorized Distributor of Merytronic in Indonesia, we, PT Tunas Dielektrika Nusantara, are responsible for providing the best after-sales service for all Merytronic products that we deliver to our customers.
Through our sister company, PT Dynamics Circuit Indonesia, which has been professional since 2013 in servicing and repairing test equipment, including those made by Megger, HV, Phenix, ISA, Baker, and others. We sent two people from PT Dynamics Circuit Indonesia to receive repair and service training on April 21-25, 2025, directly at Merytronic Spain, to provide faster and better repair and after-sales services for all our customers in Indonesia.
"WE ARE AUTHORIZED"

Yes, we have been officially authorized as an authorized service center for Merytronic in Indonesia
Merytronic Authorized Service Center:
PT DYNAMICS CIRCUIT INDONESIA
Jalan P. Tubagus Angke No. 10, Komplek Jelambar Center Blok C11
Grogol Petamburan, Jakarta Barat 11460, Indonesia
www.dynamicscircuit.com
Merytronic Authorized Distributor:
PT Tunas dielektrika Nusantara
Facebook: @tunasdielektrika
Instagram: @tunasdielektrika_nusantara
www.tunasdielektrika.com

The TDR1000/3P handheld time domain reflectometer (TDR) is a compact, handheld instrument for locating faults on metallic cables. With built-in blocking filters and fused test leads, it has a minimum resolution of 0.1 m and a 5 km maximum range depending on the velocity factor selected and the cable type.
The TDR1000/3P has four output impedances available (25, 50, 75, and 100 Ω) and a four-way control switch that makes operating the instrument simple and inutive. It also has a velocity factor between 0.2 and 0.99, enabling it to meet any cable test requirements.
The instrument has an 'Auto selection' option that ensures that the most effective parameters are selected depending on the range required, aiding rapid diagnosis of the TDR trace. Dual cursors allow complete flexibility, giving you full control and an instant indication of the distance between two points. A trace 'Hold' feature also allows comparison between conditions, something not seen on most other handheld TDRs. Extra high resolution together with a white-light backlight and grey scale tones make the graphical display vibrant, helping you to identify key events on the trace.

Easy to use, light to carry, and featuring a convenient internal database for results storage, the PAT450 portable appliance tester is optimised for use by service organisations and equipment rental companies. Key benefits of the instrument include rapid start-up, instant restart after temporary disconnection when moving between test locations, and optional barcode support to aid in rapid asset identification.
These instruments offer both manual and automatic operation. When used in automatic mode, the test structure can readily be configured to suit specific requirements. This way, for example, a supervisor can predefine a test structure for a particular application and then be sure that all tests are performed exactly as required, irrespective of who carries out the testing work.