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CHAPTER 2 Checks and Preparation
2.14 Precautions to Observe When Taking Measurement
To avoid break-downs or short-circuiting accidents, please make sure to follow warnings written below.
•
Use only the AC adapter provided as a standard accessory. The rated power supply range for the adapter
is 100 to 240 VAC, and the rated frequency is 50/60 Hz. Do not use any other voltages.
•
Do not input the voltage that exceeds the specication of this device.
· If a voltage exceeding the specied value is input, the semiconductor relay in the input section will be
damaged. Never input a voltage exceeding the specied value even for a moment. It will cause re.
· Have enough margin from the specication of withstanding voltage when using this device, it has to
consider a noise and change of the measurement voltage.
· Conrm this device is not broken before the input cable is connected to the input terminal.
· Please take care of the static electricity when connecting the input cables or the thermocouples.
· Do not touch the tip of thermocouples with bare hand after the thermocouples are connected to the
terminal of this device when the tip is not insulated.
The static electricity from a human body will cause damage to the device.
· Do not put the tip of thermocouples to an object which contains static electricity when the tip is not
insulated. The static electricity from object will cause damage to the device.
· Do not put the tip of thermocouples to the object which contains leaked high voltage from chassis or
metal etc. when the tip is not insulated.
The leaked high voltage from object will cause damage to this device.
· We recommend that an insulation tape is placed on the tip of thermocouples before connecting it to the
input terminals.
This will protect the device from the static electricity and the leaked high voltage.
•
To prevent electric shock and short circuit accident, do not connect to BNC terminal and screw terminal at
the same time.
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