Atec Megger-DET20C - Manual (Page 3)

DET10C DET20C
Earth/Ground Resistance & Leakage Current Clamp Testers
Jaw Assembly
Extra large opening – 35 mm
(1.36 in) to encircle electrode or
ground rod. No air is allowed
between the two jaw halves.
Jaw Trigger Lever
FUNC Button
Used to select the following functions:
HI: high alarm level in ohms
LO: low alarm level in ohms
SEC: sampling interval (in seconds)
dI: download stored data to a PC
NO: allows scrolling through stored
readings
REC Button
Used to increment value or start
data download when the FUNC
button is in use. Also used to start
data logging or record a reading.
HOLD Button
Maintains last measurement
on the LCD display
Selector Switch
Quickly and easily select
• Leakage current (amps)
• Leakage current (milliamps)
• High/Low Alarm
• Ground resistance (ohms)
LCD Panel
DET20C OPERATION
1. Function Display current selected function or current
record number.
2. Digits Display value from 0 to 9999 with decimal point.
3. Ohm Indicates resistance mode and alarm functions.
4. mA Indicates ground leakage current mode in mA
or A.
5. >>> Indicates instrument is set at the alarm position.
6. NOISE: Indicates ground resistance tester senses noise or
excessive current present in the ground
electrode.
7. Jaw Open Displayed if the jaws are opened during the
measurement, this symbol and word OPEN will
be shown in LCD.
8. Low Battery Indicates battery voltage is lower than required.
9. NO. Indicates the data record number in memory.
10. REC Indicates data logging is in progress.
11. H Indicates “HOLD” function activated.
12. AP Indicates Auto Power Off activated. Deactivate
by holding down the REC button then turning
on unit.
DET20C Data Functions
• Store a specific reading
• Data logging
• Adjustable sampling interval
• Data logging capacity up to 8180 records (DET20C)
• Review of stored data
• Download data to a PC for later analysis
DET20C DISPLAY EXAMPLE
8
1
9 10 7 6
3
11
5
2 4 12