ETCR 3000B - Page 8

-4-
Shift
Earth resistance: 0.00Ω-30.00kΩ, automatic shift
Soil Resistivity: 0.00Ωm-9000kΩm, automatic shift
Backlight
Blue screen backlight, suitable for dim places
Display Mode
4-digital super-large LCD display, blue screen
backlight
Measuring
Indicator
During measurement, LED flash indicator, LCD count
down display, progress bar indicator
LCD Frame
Dimension
128mm×75mm
LCD Window
Dimension
124mm×67mm
Dimension
L×W×H: 215mm×190mm×95mm
Standard Test
Wire
4 wires: each for red 20m, black 20m, yellow 10m,
and green 10m
Simple Test
Wire
2 wires: each for red 1.6m and black 1.6m
Auxiliary
Earthing Rod
4 wires: Φ10mm×150mm
Measuring Rate
Voltage to ground: about 3 times/second
Earth resistance, soil resistivity: about 5 seconds/time
Measuring
Times
Over 5000 times (Short-circuit test, interval time
should be at least 30 seconds)
Circuit Voltage
below AC 600V
RS232 Interface
Possess RS232 interface, software supervision,
storage data can be uploaded to computer, saved or
printed.
Communication
Wire
One piece of RS232 communication wire, with length
1.5m
Data Storage
300 sets, “MEM” icon storage indicator, flash display
“FULL” icon to indicate storage is full
Data Hold
Data hold function: “HOLD” icon display
Data Read
Data read function: “READ” icon display
Overflow
Display
Exceeding measuring range overflow function: “OL”
icon display
Interference
Test
Recognize interference signal automatically, “NOISE”
icon display when interference voltage exceed 5V
Auxiliary
Earthing Test
Can measure auxiliary earth resistance,
0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)
Alarm Function
When measuring value exceeds alarm setting value,
there is “Toot-toot-toot” alarm hint
Battery Voltage
When battery voltage decreases to about 7.5V,