Megger Programma TM200 Digital Timer
The Megger TM200 is a digital timer used in electrical test setups where precise, repeatable timing is critical. Built for utilities, substation engineers, and electrical contractors, the TM200 measures contact operating times and test event durations to 1 ms resolution, the kind of fidelity that turns a breaker test or a relay coordination check into evidence rather than a guess.
The TM200 is part of the Megger Programma test family, designed to sit alongside primary current injection test systems, secondary injection sets, and circuit breaker analysers. Where you need an extra timer to capture an additional contact, an auxiliary signal, or a parallel test event, the TM200 is the unit that drops into the test bench without complicating the rest of the setup.
Why timing accuracy matters in HV test work
A timer in HV test work is not a stopwatch. The accuracy of the timing data is what supports a pass or fail decision against the manufacturer specification of a breaker, a protection relay, or a switchgear assembly. A few milliseconds of error can be the difference between a healthy device and one that gets rebuilt unnecessarily, or worse, the difference between a real protection coordination problem and a missed one.
The TM200 is built for stable timing performance in the realities of substation, switchroom, and field test environments. Clear digital readout reduces the operator interpretation errors that creep into manual timing, and consistent results across repeated tests make trending and audit reporting much easier.
Where the TM200 fits in your test setup
- Circuit breaker timing: capture additional opening, closing, and auxiliary contact events during a breaker test.
- Primary current injection: time relay operating points and trip durations during commissioning and routine testing.
- Secondary injection: log relay pickup and reset times when a dedicated channel is needed.
- Coordination studies: verify protection grading by capturing operating intervals between upstream and downstream devices.
- Test bench expansion: provide an extra timer when an existing analyser runs out of channels.
The TM200 is ideal where the timer is often needed as a flexible add-on rather than the centrepiece of the test. It works as a stand-alone unit, and it works alongside the Megger TM1700 and TM1800 series breaker analysers, micro-ohmmeters, and the broader Programma range.
Specifications: what to confirm before you order
| Specification | What to confirm |
| Timing resolution | 1 ms resolution suitable for breaker and relay timing |
| Channels | Match the number of contacts and signals your test workflow captures |
| Trigger options | Voltage-free contact, voltage-sense, and external trigger as required |
| Display | Clear digital readout for direct on-site reading |
| Build | Designed to withstand the test bench and substation environment |
| Calibration | Supplied calibrated; periodic recalibration through Powerpoint’s lab |
For a full datasheet and confirmation against your test setup, send us the breaker, relay, or injection system you are pairing the TM200 with.
Target users and applications
- Utilities and substation maintenance teams running breaker and protection tests
- Electrical engineers in commissioning, protection and control, and HV test roles
- Electrical contractors working on industrial power distribution, switchgear, and renewables
- Test labs needing a dependable extra timer for parallel or auxiliary measurements
As authorised Megger distributor in Ireland, Powerpoint Engineering supports the TM200 with in-house calibration and repair and accessory supply, so the timer stays trusted across its working life.
FAQs
What is the timing resolution of the Megger TM200?
The TM200 measures to 1 ms resolution, which is appropriate for circuit breaker timing, relay timing, and most HV test workflows. If your application needs higher resolution, we can advise on the Megger Programma analyser range that provides finer measurement.
Can the TM200 be used with circuit breaker analysers?
Yes. The TM200 is often used as an extra timer alongside Megger TM1700 and TM1800 analysers, primary current injection sets, and secondary injection equipment. It expands the channel count of an existing test bench without replacing what you already have.
Does the TM200 need recalibration?
Yes. As a precision timing reference, the TM200 should be recalibrated periodically to remain trusted. Powerpoint Engineering’s calibration laboratory carries out the work in-house and supplies a traceable certificate as part of the service.
To match the right Megger TM200 configuration to your test setup and breaker fleet, request a quote or speak to our team for compatibility advice.
