show all of its symbols (Figure 1). Meanwhile the instrument
auto-calibration, after boot displayed "OL Ω", automatically enter
the resistance measurement mode (Figure 2).If there is no normal
boot self-calibration, instrument will show "Er" symbol, said boot
error. need to check the cause and reboot (Figure 3).
Figure 1
After Power On and Self Test if
not appear "OL Ω",but shows a large
resistance (Figure 4).
However, when measured with the
test ring, still gives the correct result, indicating Clamp measured
only in the high-value (for example, more than 100Ω) has large
errors, When measuring a small resistance retains the original
Accuracy, the user can rest assured use.
2.Shutdown
Press POWER Key to Shutdown.
5 minutes after boot, LCD display into the blinking state. To
reduce battery consumption, blinking state for 30 seconds
automatically shut down. In the blinking state press POWER key to
delay shutdown, Clamp continue to work.
In the HOLD state, need to press HOLD key to exit the HOLD
state, then press POWER key to shut down.
In setting Alarm Critical Value state, need to press the
Figure 2
-12-
Figure 3
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Questions and answers
CALIBRATION TIME
The calibration for the ETCR2000+ occurs automatically during boot-up. The device performs auto-calibration after pressing the POWER key and shows "OL Ω" upon successful completion. The exact duration of the calibration time is not specified.
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Unit does not switch on,batteries are good.
If the ETCR2000+ unit does not switch on despite having good batteries, possible issues include:
- Incorrect battery polarity: Ensure batteries are installed correctly.
- Poor contact of battery contacts: Check and clean or replace the battery contacts.
- Wrong battery type: Use the correct battery type.
- A break in the battery harness: Perform a continuity test; replace the harness if no continuity.
- Displaced POWER button: Re-assemble the button.
- Poor contact of power plug: Re-plug or replace the plug.
- Defective PCB or circuit component: Replace the PCB if current consumption is about 100mA or more at 6V.
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