4
Safety Precaution
(Always read these instructions before using this equipment)
For personnel and product safety, please read the contents of these operating instructions
carefully before using.
Please store this manual to make it accessible when required and always forward it to the end user.
Indicates that incorrect handling may cause hazardous conditions.
Always follow the instructions because they are important to personal safety.
Otherwise, it could result in electric shock, fire, erroneous operation,
and damage of the instrument.
■
Normal Service Conditions
CAUTION
Conditions
Below 600V, or 600A power lines
Other power lines
Length
30cm or more
60cm or more
CAUTION
Use the instrument in an environment that meets the normal service conditions as following points:
●
Ambient temperature: -5 to 50
°
C, average day temperature exceeds 35
°
C
●
Humidity: 30 to 85%RH, non condensing.
●
Altitude: 1000m or less
●
Pollution Degree: 2
●
Atmosphere without corrosive gas, dust, salt, oil mist.
●
A place without excessive shocks or vibration.
●
Do not expose to rain and water drips.
●
Do not expose to direct sunlight.
●
An area in where no pieces of metal and an inductive substance disperse.
●
Do not expose to strong electromagnetic field and ambient noises.
CAUTION
●
This instrument should be installed and used by a qualified electrician.
●
The instrument must not be powered and used until its definitive assembly on the cabinet’s door.
●
Verify the following points;
Auxiliary power supply and measuring ratings
Current circuits, C1, C2 and C3 are Measurement category
1
.
Voltage circuits, P1, P2 and P3 are Measurement category
3
.
●
The instrument is to be mounted on a panel. All connections must be kept inside the cabinet.
●
Tighten the terminal screws with the specified torque and use the suitable pressure connectors
and suitable wire size. (see page 58)
●
When wiring the instrument, be sure that it is done correctly by checking the instrument’s
wiring diagrams. (see page 60 to 63)
●
Be sure there are no foreign substances such as sawdust or wiring debris inside the instrument.
●
Do not drop this instrument from high place. If you drop it and the display is cracked, do not touch
the liquid crystal or get it in your mouth. If the liquid crystal is touched, wash it away at once.
●
In order to prevent invasion of noise, do not bunch the control wires or communication cables
with the main circuit or power wire, or install them close to each other.
The distance between communicational signal lines, input signal lines and power lines, high
voltage lines running parallel to each other are shown below.
■
Installation Instructions
Auxiliary power supply
100-240V AC
+10-15
%(50-60Hz) 8VA
100-240V DC
+10-30
% 5W
Ratings
Voltage
Current
Frequency
277V AC phase-neutral / 480V AC phase-phase
5A (via current transformer)
50/60Hz
