Related Manuals for Amprobe DM78C
Summary of Contents for Amprobe DM78C
- Page 1 DM78C Digital Pocket Multimeter Pocket-Size Meter with Protective Folding Cover Users Manual • Bedienungshandbuch • Mode d’emploi • Manuale d’Uso • Manual de uso • Användarhandbok...
- Page 2 DM78C Digital Pocket Multimeter Pocket-Size Meter with Protective Folding Cover DM78C_Rev00 (English) © 2008 Amprobe Test Tools. All rights reserved.
- Page 3 Please read the warranty statement and check your battery before requesting repair. During the warranty period any defective test tool can be returned to your Amprobe Test Tools distributor for an exchange for the same or like product. Please check the “where to Buy” section on www.amprobe.com for a list of distributors near you.
- Page 4 ➍ ➌ ➋ ➎ ➏ ➊ ➊ Selector switch ➋ Manual Range select ➌ 34 segment bargraph ➍ 3¾ digit lCD ➎ Data hold ➏ Function select...
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Page 5: Table Of Contents
DM78C Digital Pocket Multimeter Contents Symbols ..............5 warnings and Precautions ........5 Unpacking and inspection ........6 operation ..............7 AC Voltage Measurement ........8 DC Voltage Measurement ........8 Resistance Measurement ........8 Diode Test ............9 Continuity Test ............9 Maintenance ............0 Trouble Shooting ..........0 Cleaning and Storage ........0 Battery Replacement ............ -
Page 6: Symbols
Symbols � Battery � Caution! Refer to the explanation in this Manual � Caution! Risk of electric shock � Earth (ground) � Double insulation or Reinforced insulation � DC – Direct Current � AC – Alternating Current � Audible tone Underwriters laboratories inc. -
Page 7: Unpacking And Inspection
• Do not operate instrument in an explosive atmosphere. Unpacking and Inspection Your shipping carton should include: • DM78C Digital pocket meter • Protective carrying case • Users manual • 2 l54F or lR-44 batteries - installed... -
Page 8: Operation
oPERAtIoN Beeper Note: The beeper sounds for function change, Range Lock, Range Hold, and continuity. Ranging: The meter defaults to autoranging when turned on, and selects the range automatically. For Manual Ranging: press “Range lock” Button to hold selected range ( on the display). -
Page 9: Ac Voltage Measurement
AC Voltage Measurement � Warning For safety, do not attempt to measure voltages greater than 600 VAC. Set Selector Switch to VolT. Push Function Button so that “AC” appears in display. Connect test leads to circuit. Connection must be in parallel with circuit being measured. -
Page 10: Diode Test
Set Selector Switch to Ω ��. Press Function Button until ‘oL’ and MΩ appear on the display. Connect the test leads to circuit or component. Read value on the display. Diode test The diode should be disconnected from circuit. Required forward voltage must be < V. -
Page 11: Maintenance
MAINtENANCE � Warning to avoid electrical shock, disconnect the meter from circuit and turn oFF the meter before opening the case. Do not operate the meter with open case. trouble Shooting if the instrument fails to operate, check batteries and test leads etc., and replace as necessary. -
Page 12: Battery Replacement
Battery Replacement � Warning Before attempting to replace the battery, first disconnect the test leads from any energized circuit. Power is supplied by two button-type batteries (l54F or iEC lR-44). “�” appears on the lCD display when replacement is needed. Set Function Switch to off. - Page 13 Storage: -20 ºC to 60 ºC (-4 ºF to 40 ºF), <80 % Rh non-condensing Battery type: Two .5 V (l54F or lR-44) Battery life: 70 hours continuous operation Continuity test: Beeper alert Auto-oFF: After 0 minutes of non-use Dimensions: 30 x 77 x 8 mm (5." x 3." x 0.6") Weight: 0 g (3.9 oz) including case Agency Approvals:...
- Page 14 ELECtRICAL SPECIFICAtIoNS (23 ºC ±5 ºC, 80 % RH Max) Maximum input, all functions/ranges: 600 VDC or AC rms DC VoLtAgE Ranges: 340 mV, 3.4, 34, 340, 600 V Resolution: 00 µV in 340 mV rg Accuracy: ±2.0 % rdg. + 2 dgts (exc. 3.4 V rng: ±.0 % rdg + 2 dgts) Input impedance:...
- Page 15 34 MΩ rg: ±5.0 % rdg. + 5 dgts test voltage: -0.45 Vdc typical (-.2 Vdc on 340 Ω rng) DIoDE tESt Range: 3.4 V Accuracy: ±3.0 % rdg + 3 dgts test current: 0.6 mA (Vf = 0.6 V) CoNtINUIty CHECk Range: 340 Ω...