Elma 6400
3
• Auto power off
In order to extend the battery life, except of using external power supply, APO
feature will be helpful. It can be enabled or disabled APO function by press the
APO button and the LCD will show whether the function is enable or not. When all
function keypads do not be pushed or impedance range switching detected within
5 minutes, the system will launch the alarm buzzer beep at three times before the
auto power-off status. During the period of alarm, the meter will be kept in
operation by pushing any function key again. If any key is not in operation further,
the system power will be off.
• Buzzer
If the function keypad available is pushed,the buzzer output beeps once.If the
function keypad not available is pushed,the buzzer beeps twice.
• Backlight
When user push the button, the backlight will be active. Push the key
again to disable the backlight. When the backlight is active to last for 60 seconds,
the backlight will be disabled automatically.
• Battery detect
The meter will detect the battery multi-level voltages periodically. The LCD
indicators of battery life will be disappeared according to the decreasing of battery
voltage.
• Primary impedance with secondary parameter test mode
When AUTO/L/C/R function selection key is pushed, the main test mode
could be selected sequentially: Auto-LCR mode→Auto-L mode→Auto-C
mode→Auto-R mode→DCR mode→Auto-LCR mode. The default test mode is
Auto LCR mode which could check the type of impedance smartly and enter to the
L/C/R measurement mode automatically. The secondary parameter will follow the
L/C/R measurement. It means that (L + Q) , (C+D)2,(R+Q)2 are combined in one
group respectively. When Auto-L or Auto-C mode is selected, the impedance
measurement is auto ranging. The primary LCD display will show the inductance
or capacitance of DUT (device under test). The secondary LCD display will show
the quality or dissipation factor. The D/Q/θ/ESR value can also be shown by
pressing the button. When Auto-R(ACR mode) or DCR mode is selected, the
secondary parameter is omitted.
Note: When Auto-LCR mode is active, the secondary parameter will show the
equivalent resistance in parallel mode (Rp) to replace the D factor if the C
measured value of DUT is less than 5pF.
Note: Auto-LCR mode only. During Auto-R mode or DCR mode, the secondary
parameter is not available.
riešenia na presné meranie
