— 10 —
4.3 Reference test condition
Unless otherwise specified, this specification is dependent on following
condition.
⑴
Ambient temperature:
23±5
˚
C
⑵
Relative humidity:
45 ~ 75%
⑶
Attitude:
Horizontal
⑷
AC power supply:
240V, 50Hz
⑸
Altitude:
2000m or less
Operating temperature and humidity range
0
℃
~ +40
℃
Relative humidity: 85% or less (no condensation)
Storage temperature and humidity range
-20
℃
~ +60
℃
Relative humidity: 85% or less (no condensation)
Rate voltage and frequency
Rated voltage:
240V ±10%
Rated frequency:
50 Hz ±1%
Maximum rated power
Approx. 9VA
Outer dimension and weight
Outer dimension: 185(L) × 167(W) × 89(D)mm
Weight: Approx. 1.2kg (only the instrument body)
Symbols used on the instrument:
Equipment protected throughout by DOUBLE INSULATION or
REINFORCED INSULATION
#
Caution (Refer to the accompanying instruction manual)
This instrument satisfies the marking requirement defined in the
WEEE Directive (2002/96/EC). This symbol indicates separate
collection for electrical and electronic equipment.
Measurement categories
To ensure safe operation of measuring instruments, IEC 61010 establishes
safety standards for various electrical environments, categorized as CAT II to
CAT IV, and called measurement categories.
O
: Circuits which are not directly connected to the mains power
supply.
CAT II : Electrical circuits of equipment connected to an AC electrical outlet
by a power cord.
CAT III : Primary electrical circuits of the equipment connected directly to
the distribution panel, and feeders from the distribution panel to
outlets.
CAT IV : The circuit from the service drop to the service entrance, and
to the power meter and primary overcurrent protection device
(distribution panel).
