APPA 98II User manual

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DIGITAL MULTIMETER
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INSTRUCTION MANUAL
APPA 98II

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# WARNING
THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY.
TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT
CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

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INTRODUCTION
1-1 Unpacking and Inspection
Upon removing your new Digital Multimeter from its packing, you should have the following items:
1. Digital Multimeter.
2. Test lead set (one black, one red).
3. Instruction manual.
4. Protective holster.

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1-2 Meter Safety
Terms as Marked on Equipment.
#ATTENTION —Refer to manual.
1DOUBLE INSULATION —Protection Class Ⅱ.
"DANGER —Risk of electric shock.
Symbols in this Manual.
#This symbol indicates where cautionary or other information is found in the manual.
FUSE
Battery

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1-3 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 4000 counts LCD readout with 82 segments analog bar graph, auto
polarity, decimal point,“ “ AC, DC RANGE, APO and unit annunciators.
2. Rotary Switch —Select the Function and Range desired.
3. COM Input Terminal —Ground input connector.
4. V Ω Hz Input Terminal —Positiv
e input connector for Volts, Ohms Capacitance and Temperature Frequency.
5. mA Input Terminal —Positive input connector for Amp measurements (up to 400mA).
6. A Input Terminal —Positive input connector for Amp measurements (up to 10A).
7. Range Switch, (Manual Range) —“Range”switch is pressed to select manual ranging and to change ranges.
When pressed the“Range”annunciator is displayed. Consecutively press-
ing the“Range”switch allows selection of the appropriate range for meas-
urement. To return to“Autoranging”press the “Range”switch and hold
simultaneously for 2 seconds.

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8. Blue Switch —Press the switch to toggle between AC Voltage / Current and DC Voltage / Current in the
Voltage / Current mode or to toggle between Resistance and continuity and diode in Ω/ /:
mode or to toggle between Frequency and RPM in Hz/RPM mode.
9. Hold Switch —This switch is used to hold the measured value for all functions, when pressed the““
annunciator is displayed. Conversions are made but the display is not updated.
This switch could be used in“MIN/MAX”mode or“PMIN/MAX”mode.
10. % Hz Switch —This switch is used to quickly view the frequency during measuring the AC voltage or current.
Press“%Hz“switch once the LCD is changed to display frequency. Push “%Hz “switch
again, the LCD back to display the AC signal amplitude reading. In“%Hz“mode, pressing
RANGE key switch does not change the frequency range. However , the RANGE key switch
changes the sensitivity of frequency detection, if the input signal amplitude is less than 5% of
full scale range, the user shall increase the sensitivity. Pressing Range switch in“%Hz“
modealso changes range of the original voltage or current mode.

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Figure 1

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SPECIFICATIONS
2-1 General Specifications
Display : The Liquid Crystal Display (LCD) has a maximum reading of 4000 and 82 segments bar graph.
Polarity Indication : Automatic, positive implied, negative indicated.
Overrange Indication :“OL”or“-OL”.
Low Battery Indication :“ “ is displayed when the battery voltage drops below operating voltage.
Sampling :2 times/sec for digit. 12 times/sec for analog bargraph.
Auto Power Off : Approx 30 minutes.
Operating Ambient :0℃~ 30℃(≦80%R.H), 30℃~ 40℃(≦75%R.H),
40℃~ 50℃(≦45%R.H).
Storage Temperature :-20℃to 60℃, 0 to 80% R.H. when battery removed from meter.
Temperature Coefficient : 0.15 x (Spec.Acc’y) / ℃, <18℃or > 28℃.
Power Requirements : Standard 9V battery NEDA 1604, IEC6F22, JIS006P.
Battery Life : Alkaline 300 hours.

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Dimensions (W x H x D) : 88mm x 180mm x 33.5mm , without holster.
94mm x 188mm x 40mm , with holster.
Accessories : Protective Holster , Battery (installed), Test leads and Instruction Manual.
2-2 Environmental Conditions
Indoor use.
Maximum Altitude : 2000 Meter.
Installation Category : IEC 1010, 1000V Cat.Ⅱ, 600V Cat.Ⅲ.
PollutionDegree : 2

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2-3 Electrical Specifications
Accuracy is±(% reading + number of digits) at 23°C±5°C , less than 80% R.H.
(1) DC Volts
Range Resolution Accuracy Over voltage
protection
400mV 100µV±(0.25%reading + 5digits)
DC 1000V
40V 10mV
±(0.25%reading + 1digit)400V 100mV
1000V 1V
4V 1mV ±(0.4%reading + 1digit)
Input Impedance : 10MΩ. (over 1000MΩin 400mV range).