The SHZ-D constant speed source is a specialized product designed and produced according to the technical requirements of the national insulation resistance meter verification regulations "JJG622-97" and the grounding resistance meter verification regulations "JJG366-86". It is an ideal supporting equipment for verifying various hand cranked megohmmeters and grounding resistance meters.

The constant speed source adopts a reliable design that combines motor electronic speed regulation with mechanical speed regulation, synchronous sampling, and four digit LED digital display of speed; In order to meet the requirements of different hand cranked megohmmeters structurally, horizontal and vertical adjustment adaptation mechanisms are set up, making it easier for the center of the tested meter handle to be coaxially connected with the constant speed source drive connection contact; At the same time, there is also an independent semi-automatic four-way 5-degree tilting mechanism to meet regulatory requirements.

The maximum torque of the constant speed source reaches 1.2N. m, and the maximum speed is 280 revolutions per minute, which is continuously adjustable. This constant speed source has the characteristics of stable speed, accurate display, strong adaptability, and easy operation. Suitable for metrological testing and production maintenance personnel in various industries.

2、 Technical parameters

2.1. Speed range: 35-280 revolutions per minute

2.2. Accuracy: ± 1 RPM

2.3. Maximum torque: 1.2N. m

2.4. Power supply: ACV 220V ± 10% 50Hz

2.5. Power consumption: 50W

2.6. Dimensions: 400 × 420 × 430 (mm)