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STB6684/A Operation Manual
1.2.2 Enviromental temperature and humidity
Normal working temperature: 0°C～40°C, humidity: < 90%RH
Reference working temperature: 20°C±8°C, humidity: < 80%RH
Transportation temperature: 0°C～55°C, humidity: ≤ 93%RH
1.2.3 Warm-up
Warm up time: ≥ 30 min.
1.2.4 Cautions
!
(1)
Please do not operate the instrument in the places where is vibrative, dusty, under direct
sunlight, or where there is corrosive air.
(2)
Please store the instrument in an airy room where temperature is between 5 and 40
humidity is less than 85% RH and no corrosive impurities and direct sunlight exists.If the instrument will
not be put in use for a time, please have it properly packed with its original box or a similar box for
storing.
(3)
Although the instrument has been specially designed for reducing the noise caused by ac
power, a place with low noise is still recommended. If this cannot be arranged, please make sure to use
power filter for the instrument.
(4)
STB6684/STB6684A has the cooling fan on the rear panel and cooling holes on both sides.
High temperature inside inside will decrease the measurement accuracy, so sufficient space must be kept
around the instrument to avoid obstructing the air flow of the cooling fans.
(5)
Do not frequently turn on or off the instrument, doing so will lead to the loss of the
calibrated data and the data saved by users.
(6)
Correct test methods:
DO NOT connect a capacitor to the instrument when it is outputting a high voltage (>50V).
Abnormal operations may cause damages to the instrument, in this case user should be liable for
all maintenance fees.
1.3 Dimension and weight
Dimension (W*H*D): 350mm*120mm*400mm
Weight: approx. 7kg
1.4 Safety
The instrument is the class I.
2
Chapter 1 Introduction
℃
℃, relative
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