User manual for the Huaying Power MS-III time calibration instrument, covering specifications, operation, and accessories.
The MS-III time calibration instrument from Huaying Power is designed for calibrating time relays, high‑voltage switch testers, relay protection testers and other high‑precision timing devices. The manual provides the scope of application, technical specifications, panel layout, and detailed operating procedures.
It also includes wiring diagrams for various test configurations, instructions for setting start/stop signal levels, and a list of supplied accessories. Safety notes and environmental limits are described to ensure reliable and safe operation. This manual is written in Chinese.
| Calibration time range | 1 ms – 9999.99 ms |
|---|---|
| Bounce time range | 1 ms – 99 ms |
| Resolution | 0.01 ms |
| Start level options | DC 5 V, 12 V, 24 V, 110 V, 220 V (selectable) |
| Stop level options | DC 5 V, 12 V, 24 V (selectable) |
| Internal power supply | DC 20 V – 230 V (±1 %) |
| External power supply | AC 198 V – 230 V |
| Operating temperature | 10 °C – 35 °C |
| Operating humidity | ≤85 % RH |
| Storage temperature | -20 °C – 50 °C |
| Dimensions | 400 mm × 320 mm × 230 mm |
The start and stop signal levels are selected in the input/output mode and can be set to either high‑level or low‑level according to the tested instrument’s requirements.
It can operate with an internal DC supply of 20 V‑230 V (±1 %) and an external AC supply of 198 V‑230 V.
The instrument works at temperatures between 10 °C and 35 °C and humidity up to 85 % RH.
The package contains one main unit, a set of test leads, a power cord, and the user manual with five fuses.