Greenlee CMGRT-100 Manuel D'instructions page 15

Specifications
Display: 3-3/4–digit LCD (3000 counts)
Jaw Opening: 32 mm (1.25")
Resistance Measurement Frequency: 2403 Hz
Current Measurement Frequency: 47 Hz to 800 Hz
Automatic Power-Off: After 5 minutes of inactivity
Overvoltage Protection Categories:
Category III, 150 VAC, Pollution Degree 2
Category II, 300 VAC, Pollution Degree 2
Operating Conditions:
–10 °C to 40 °C (14 °F to 104 °F), 10% to 90% relative humidity
40 °C to 55 °C (104 °F to 131 °F), 10% to 75% relative humidity
Storage Conditions: –40 °C to 70 °C (–40 °F to 158 °F), 10 to 75% relative humidity
Remove battery
Elevation: 2000 m (6500') maximum
Battery: 9 V battery (NEDA 1604, JIS 006P or IEC 6F22)
Overvoltage Installation Categories
These definitions were derived from the international safety standard for insulation coordination as it
applies to measurement, control, and laboratory equipment. These overvoltage categories are explained
in more detail by the International Electrotechnical Commission; refer to either of their publications:
IEC 1010-1 or IEC 60664.
Overvoltage Category I
Signal level. Electronic and telecommunication equipment, or parts thereof. Some examples include
transient-protected electronic circuits inside photocopiers and modems.
Overvoltage Category II
Local level. Appliances, portable equipment, and the circuits they are plugged into. Some examples
include light fixtures, televisions, and long branch circuits.
Overvoltage Category III
Distribution level. Permanently installed machines and the circuits they are hard-wired to. Some
examples include conveyor systems and the main circuit breaker panels of a building's electrical
system.
Overvoltage Category IV
Primary supply level. Overhead lines and other cable systems. Some examples include cables, meters,
transformers, and other exterior equipment owned by the power utility.
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CMGRT-100
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