Voltmeter

Application
The instrument measures the instantaneous voltage of the current supply unit of motor vehicles. Thus, it is suitable for controlling the condition of the battery and the charging process.
For the sake of easy rading, the instrument is manufactured with coloured scale.
Description

Example pic

The measuring instrument consists of a cross-coil, moving-magnet movement built into an internal-illumination metal case coated against corrosion. Its pointer deflects upon effect of the charging and discharging voltage of the battery. The coloured fields correspond to the various voltage conditions of the same.
Technical data:
Operating voltage: 12 or 24 V
Absolute error in the percentual value of the scale lenght:
with 12 V rated voltage:
at 12 V ±0.15 V
at 13 V ±0.15 V
at 14.8 V ±0.2 V
with 24 V rated voltage:
at 24 V ±0.3 V
at 26 V ±0.3 V
at 29.5 V ±0.4 V
Additional error: 1% / 10°C
Vibration proofness: +5 dB on frequency range 25 -1000 Hz
( 0dB = g = 9.81 m/s2 )
Protection grade against the penetration of dust and splashing water:
front side: IP 54
other side: IP 40
electrical connection: IP 00
Temperature limits:
Operiting temperature: - 25°C ... +65°C
Storage temperature: - 40°C ... +70°C
Mounting size: D52/ 60 mm
Mass: 0.16/0.20 kg