APPA 30R, Инструкция по эксплуатации

Страница: 5 / 25

4
1-2 Front Panel
Refer to Figure 1 and to the following numbered steps to familiarize yourself with the meter’s front panel controls
and connectors.
1. Digital Display — The digital display has a 3 3/4 digit LCD readout (maximum reading 3999) plus decimal
point , AC  , DC  , AUTO, HOLD, MAX ,
;
and unit annunciators.
2. Input Terminal — The black test leads is always connected to the “COM” input terminal and red test lead is
always connected to the “V- Ω ” input terminal when measuring ACV or DCV or RESISTOR or CONTINUITY.
3. Drop-Proof Wrist Strap — Prevents the instrument from slipping off the hand while in use.
4. Function Switch — This slide switch is used to select V  , V  , A  , A  , Ω , ; function.
5. P / MAX Switch — This switch has two modes one is data hold the other is maximum hold
.
Sliding the function switch to power on , this switch will work in data hold mode. Pressing the P / MAX Switch
then slide the function switch from power off to power on , this switch will work in maximum hold mode.
Data hold mode — This mode is used to hold measured value for all functions , push this switch then AUTO
annunciator is displayed, Conversions are made but the display is not updated.
Maximum hold mode — This mode is used to hold the maximum measured value for all functions.
Press this switch the " MAX " annunciator turns on then enters the maximum hold mode.
Press this switch again to restart recording. Press this switch more than 1 seconds to exit the maximum hold mode.