Before Starting Measurement
21
IM 767361-01E
Before Starting Measurement
Operating Conditions
The instrument must be used in a place where the following conditions are met.
Ambient Temperature and Humidity
• Ambient temperature: 5 to 40°C (10 to 35°C for the 767370).
To ensure high measurement accuracy, the ambient
temperature should be 23 ± 3°C.
• Ambient humidity:
20% to 80% RH, with no condensation present.
Note
• Internal condensation may occur if the temperature changes rapidly or if the instrument is
moved to a new location where both the ambient temperature and humidity are higher. If the
instrument is moved, allow it to acclimatize to its new environment for at least one hour before
starting operation.
• Never use the instrument in a place where it may be exposed to direct sunlight, otherwise the
temperature of the instrument will rise higher than the ambient temperature.
Never Use the Instrument in the Following Places
• Near heat sources
• Where an excessive amount of soot, steam, dust, or corrosive gases are
present
• Near strong magnetic field sources
• Near high voltage equipment or power lines
• Where there is a high level of mechanical vibration
• On an unstable surface
• At an altitude exceeding 2000 meters
Operation Position
Place the instrument in a horizontal or vertical position, or place it so that it is
tilted and supported by the stand.
