2
WARNING
Installation and wiring
This equipment is intended to be used under the following conditions.
Ambient temperature
-10 to 50°C
Operating humidity
90%RH or less (Non condensation)
Installation category
II
According to IEC 61010-1
Pollution degree
2
Recommended fuse
250 V AC, 0.1 A, T (Time-Lag) (100 to 240 V AC),
400 V DC/AC, 1 A, T (Time-Lag) (24 V DC/AC)
Usage environment
Indoor use
For 24 V DC/AC power supply model, if the equipment is connected to the Safety Extra Low Voltage (SELV)
circuit, a basic insulation* must be provided between the SELV circuit and the power input terminals. Otherwise,
the power input terminals must be connect to Extra Low Voltage (ELV) circuit so as to prevent the electric shock.
About safety standard
Please observe the following instructions to meet the requirements of safety standard. Failure to observe these
instructions violates safety standards. (This product is not a safety equipment.)
Install a recommended fuse, which is specied in the instruction manual, between the external main power
(mains circuit) and this equipment.
If accessible Safety Extra Low Voltage (SELV) circuits are to be connected to Signal input terminal, SSR
Drive output terminal or Current output terminal, ensure to provide a basic insulation* between the SELV
circuits and these terminals (For example, use transformer which has a basic insulation* or higher degree of
insulation).
Whole this equipment must be mounted in an enclosure in order to prevent the electric shock and spread of
re.
Be sure to install an appropriate external protective circuit to prevent excessive temperature rise etc.
When performing wiring work, be sure to turn the power off and to wear protection gloves or safety glasses,
to prevent an electric shock.
Do not use this equipment for the measurement of circuits which falls under measurement categories II, III,
or IV.
Do not use this equipment for measurement of signals to which a voltage over
30 VRMS or over 60 V DC is applied.
* The basic insulation requires a clearance at least 1.5 mm and a creepage of at least 3.0 mm. If such
insulation is not provided, the UL61010 and EN61010 safety compliance may become invalid.
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