The single-needle pressure gauge is primarily used for measuring pressure in locomotive air compressors, hydraulic systems, or air reservoirs. Its operating principle is based on the deformation of a Bourdon tube under the action of the medium's pressure. This deformation is transmitted and amplified through a mechanical linkage, driving the pointer to deflect across the dial scale and thereby indicating the measured pressure value.
Item | Specification |
Measuring Range | 0 ~ 1000 kPa, 0 ~ 1200 kPa, 0 ~ 1600 kPa |
Accuracy Class | Class 1.6 |
Operating Temperature | -40°C to +70°C, with relative humidity not exceeding 95% |
Temperature Influence | When ambient temperature deviates from 20°C ± 5°C, additional error ≤ 0.4%/10°C |
Illumination Voltage | DC 24V ±30% / DC 110V ±30% |
Insulation Voltage | ≥ AC 500V (1 minute, no breakdown) |
Dielectric Strength | ≥ AC 1500V / 50Hz (1 minute, no flashover or breakdown) |
Standard Compliance | The pressure gauge complies with GB/T 1226-2010 [General Pressure Gauge Standard] |
