4
Measurement categories (Over-voltage categories)
To ensure safe operation of measuring instruments, IEC61010 establishes safety standards for various electrical
environments, specified as CAT I through CAT IV, and called measurement categories. Higher-numbered categories
correspond to electrical environments with greater momentary energy, so a measuring instrument designed for CAT III
environments can endure greater momentary energy than one designed for CAT II.
• CAT I: Secondary electrical circuits connected to an AC electrical outlet through a transformer or similar device.
• CAT II: Primary 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 over
current protection device (distribution panel).
Incoming wire
Interior wiring
CAT. III
Transformer
CAT. II
CAT. I
CAT. IV
Socket
Symbols
Caution, risk of danger, refer to the operating manual before use
Caution, risk of electric shock
AC (Alternating Current)
DC (Direct current)
AC/DC Selectable (Alternating Current/Direct Current)
Earth (ground) Terminal
The equipment is protected throughout by
double insulation or reinforced insulation
Application around and removal from hazardous
live conductors is permitted.
Conforms to Standards of European Union
Designates the product as recyclable
electronic waste per WEEE Directive
III. GENERAL SPECIFICATIONS
• Maximum Voltage between any Terminals and Grounding:
Refer to the different ranges input protection voltage ..
• Fused Protection for mA / μA Input Terminal:600mA H 1000V Ø6.35x31.8mm.
• Fused Protection for 1 OA Input Terminal:10A H 1000V Ø10.3x38.1 mm.
• Display: Maximum reading 6000 (frequency 9999), analogue bar graph 61 segments.
• Measurement Speed: Updates 2-3 times/second.
• Range: Auto or Manual
• Polarity Display: Auto
• Overload indication: Display OL
• Battery Deficiency: Display
• Temperature:
- Operating: 0˚C to +40˚C (32˚F to +104˚F)
- Storage: -10˚C to +50˚C (14˚F to +122˚F)
• Relative Humidity:
- ≤75% @ 0˚C - 30˚C below
- ≤50%@ 30˚C~40˚C
• Battery Type: One piece of 9V (NEDA1604 or 6F22 or 006P).
• Dimensions (HxWxL): (180 x 87 x 47)mm.
• Weight:Approximate 370g (battery included).
• Safety/Compliances:
EN 61010-1,EN 61010-2-030 CAT 1111000V, CAT IV 600Vovervoltage and double insulation standard.
• Certifications:
• Accuracy Specifications:
- Accuracy ± a% reading + b digits guarantee for 1 year.
- Operating temperature 18˚C~28˚C
- Relative Humidity <75%
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