Extech 412300A Bedienungsanleitung
Extech
Messgeräte
412300A
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User Guide
Model 412300A Current Calibrator
412300A-EU-EN v3.4 07/13 2
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Introduction
Congratulations on your purchase of the Extech Current Calibrator Model 412300A. The 412300A
can measure/source current and can also power a current loop. A built-in five location memory
can store customized calibration current output steps. The Oyster Series meters have a
convenient flip up display with neck-strap for hands-free operation. This meter is shipped fully
tested and calibrated and, with proper use, will provide years of reliable service.
Meter Description
1. LCD display
2. Battery Compartment
3. AC adaptor jack
4. Calibration Cable input
5. Function switch
6. Neck-strap posts
7. Keypad
412300A-EU-EN v3.4 07/13 3
Keypad and Switch Descriptions
POWER BUTTON and AUTO POWER OFF FEATURE
1. Use the POWER button to turn the unit ON or OFF. When the unit is powered up, a short self-
test will ensue after which the display will stabilize.
2. This meter can either be powered by one 9V battery or an AC adapter.
3. When the battery symbol appears on the LCD display, replace the battery as soon as possible.
Low battery power may cause inaccurate readings and erratic meter operation.
4. This instrument is equipped with Auto Power OFF which turns the meter off after 10 minutes of
inactivity. To override this feature; press and hold the MODE button until the display shows
(auto power off de-activated) or (auto power off activated).
FUNCTION SLIDE SWITCH
1. Slide the Function switch on the side of the meter to the desired function (Source/Measure or
Power/Measure).
2. In the Source/Measure position the meter can be used to generate current or measure current
(MODE button is used to choose Source or Measure).
3. In the Power/Measure position, the meter can power a current loop with 24Vdc and, at the same
time, measure the current.
MODE BUTTON
Press the MODE button to select either SOURCE (output) or MEASURE (input). This applies when
the Function switch is set to Source/Measure.
UNIT BUTTON
Press the UNIT button to select mA or % units.
▲▼ INCREASE / DECREASE BUTTONS
Use the ▲ ▼ buttons to increase or decrease the output current value in the source mode.
1. Press the ▲ button once to increase the value in one digit steps.
2. Press and hold the
▲ button to increase the value in 10 digit steps.
3. Press and hold the
▲ ▼ button >2 sec and then press the to increase the value in 100 digit
steps
4. To decrease the value, use the
▼ button as described above.
ZERO BUTTON
The ZERO button manually zeros the display in the MEASURE mode.
1. Set the meter to the MEASURE mode
2. Short the input jack
3. Press and release the ZERO button
Produktspezifikationen
| Marke: | Extech |
| Kategorie: | Messgeräte |
| Modell: | 412300A |
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