The HTC15 Ohmmeter is an analog panel-mounted instrument designed to measure electrical resistance in control systems, distribution panels, and industrial equipment. It adopts either a moving-coil (magnetoelectric) or moving-iron (electromagnetic) mechanism depending on the application needs. The instrument features stable performance, clear indication, and strong mechanical durability. It is suitable for real-time monitoring of circuit continuity or insulation resistance in railway, power, and automation systems. Compliant with GB 7676-98 standard, the HTC15 series is built to operate reliably under harsh industrial environments, with strong vibration resistance and long service life.
Item | Specification |
Accuracy Class | Class 1.5 / Class 2.5 |
Operating Conditions | -20°C to +50°C; Relative humidity ≤ 85% |
Voltage Influence | When the supply frequency changes by ±15% from the rated value, the indication |
Mechanical Performance | Withstands acceleration of 30 m/s², impact frequency of 80–120 times/min, |
Mounting Position | Vertical use only |
