ETCR 3000B - Intrinsic Error and Performance Indicators

-5-
battery voltage low icon will display, reminding to
replace battery.
Power
Consumption
Standby: about 20mA (Backlight shut off)
Boot and with backlight: about 45mA (25mA without
backlight)
Measurement: about 100mA (Backlight shut off)
Weight
Total weight: 4.5kg (including package)
Tester: 1443g (including battery)
Tesing wires: 1560g
Auxiliary earthing rods: 935g (4pcs)
Working
Temperature &
Humidity
-10℃-40℃, below 80%rh
Storage
temperature &
humidity
-20℃-60℃, below 70%rh
Overload
Protection
Measuring earth resistance: between each interfaces
of C(H)-E、P(S)-ES, AC 280V/3 seconds
Insulation
Resistance
Over 20MΩ (between circuit and enclosure it is 500V)
Withstanding
Voltage
AC 3700V/rms (Between circuit and enclosure)
Electromagnetic
Features
IEC61326(EMC)
Protection Type
IEC61010-1 (CAT Ⅲ 300V、CAT IV 150V、Pollution 2),
IEC61010-031, IEC61557-1 (Earth resistance),
IEC61557-5 (Soil resistivity), JJG 366-2004
3. Intrinsic error and performance indicators under base
conditions
Category
Measurement Range
Intrinsic Error
Resolution
Earth
Resistance
(
R
)
0.00Ω-30.00Ω
±2%rdg±3dgt
0.01Ω
30.0Ω-300.0Ω
±2%rdg±3dgt
0.1Ω
300Ω-3000Ω
±2%rdg±3dgt
1Ω
3.00kΩ-30.00kΩ
±4%rdg±3dgt
10Ω
Soil Resistivity
(
ρ
)
0.00Ωm-99.99Ωm
According to
the precision of
0.01Ωm
100.0Ωm-999.9Ωm
0.1Ωm