Tus neeg siv phau ntawv

- 59 -
Self-Calibration
Self-calibration can help to achieve a better measurement result in the event of faulty measurement or a large
influence of ambient temperatures. If the ambient temperature increases significantly (over 5°C), self-
calibration should always be carried out to achieve the best possible accuracy.
Before performing a self-calibration, remove all probes from the terminals of the unit. Press the Utility button,
then select Function from the lower menu and then Adjust. Finally, press the SelfCal button in the lower
screen menu to perform the self-calibration.
Sample Checking
Checks whether the probe compensation is OK. The result shows three possibilities: Excessive
compensation, Good probe compensation and Insufficient probe compensation.
Proceed as follows:
1. Connect the probe to CH1 and set the Probe Attenuation to maximum.
2. Press the Utility button and select Function from the bottom menu, then Adjust from the left picture
menu.
3. Select ProbeCh. in the lower menu and notes are shown in the display.
4. Press ProbeCh. again and the test starts. The result is then displayed.
 Pass/Fail
The pass/fail check detects whether the input signal is within the limits of the rule. If it exceeds the rule
limits, it does not pass the check and is classified as a "fail"; if it is within the rule limits, it is allowed as a
"pass". It can also output fail or pass signals via an integrated and configurable output port.
Description of the Pass/Fail menu:
Menu
Setting
Description
Operate
Enable
Operate
Activate control
Switch on/off
Output
Passport
Fail
Beep
Stop
Info
Tested signal fulfils rule
Checked signal does not fulfil rule
Beep when rule is fulfilled
Stops when rule is fulfilled
Show Pass Fail information window
Rule
Source
Horizontal
Vertical
Create
Select source CH1, CH2 or Math
Change horizontal tolerance via M-rotary knob
Change vertical tolerance via M-rotary knob
SaveRule
Number
Save
Load
Select the name of the rule between Rule 1 and Rule 8.
Select Save to save the rule
Load a rule as a test rule
Pass/Fail Test:
The pass/fail check detects whether the input signal is within the limits of the rule. If it exceeds the rule
limits, it does not pass the check and is classified as a "fail"; if it is within the rule limits, it is allowed as a
"pass". It can also output fail or pass signals via an integrated and configurable output port. To perform a
pass/fail check:
1. Press the Utility button, then Function in the lower menu. Select Pass/Fail in the left menu.
2. Enable switch on: Select Operate in the lower menu and then Enable in the right menu as ON.
3. Create rule: Select Rule in the bottom menu, then Source in the right menu and Source selection in the
left menu. Set the Horizontal and Vertical Tolerance in the right menu. Finally, select Create in the right
menu to create the rule.