APPA 93N Instruction Manual Download Page 2

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WARNING

THE SERVICING INSTRUCTIONS DESCRIBED WITHIN THIS MANUAL 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. TO AVOID ELECTRIC SHOCK, DISCONNECT MEASURING TERMINALS BEFORE OPENING

ENCLOSURE.

Also, the complete duty cycle for the 20A measurement should be stated as on for 30 seconds max, and

off for 3 minutes min.

Summary of Contents for 93N

Page 1: ...DIGITAL MULTIMETER INSTRUCTION MANUAL APPA 93N ...

Page 2: ...SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO TO AVOID ELECTRIC SHOCK DISCONNECT MEASURING TERMINALS BEFORE OPENING ENCLOSURE Also the complete duty cycle for the 20A measurement should be stated as on for 30 seconds max and off for 3 minutes min ...

Page 3: ... 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 1 2 Meter Safety Terms marked on Equipment ATTENTION Refer to Manual DOUBLE INSULATION Protection Class II DANGER Risk of electric shock ...

Page 4: ...ourself with the meter s front panel controls and connectors 1 Digital Display The digital display has a 3 1 2 digit LCD readout maximum reading 1999 with automatic polarity decimal point overrange and low battery indicators 2 Rotary Switch Selects the desired function and range 3 COM Input Terminal Ground input connector 4 VΩ Hz Input Terminal Positive input connector for Volts Ohms Diode measure...

Page 5: ...ctor for current measurements up to 200mA 6 20A Input Terminal Positive input connector for current measurements up to 20A 7 Capacitor Test Jacks Used for capacitance measurements 8 AC DC Switch Select AC or DC for voltage and current measurements ...

Page 6: ...5 1 6 5 3 4 7 2 8 Figure 1 ...

Page 7: ...icated Overrange Indication 1 or 1 Low Battery Indication is displayed when the battery voltage drops below specified operating voltage Measuring Rate 2 5 times per second nominal Auto Power Off Approx 30 minutes Temperature Coefficient 0 15 x Specified accuracy C 18 C or 28 C Power Requirements Standard 9V battery NEDA 1604 JIS 006P IEC6F22 Battery Life 150 hours typical Alkaline ...

Page 8: ... Environmental Conditions Indoor Use Maximum Altitude 2000 meters Installation Category IEC 1010 600V CAT Ⅱ 300V CAT Ⅲ CAT Ⅱ is for measurements performed on circuits directly connected to the low voltage installation CAT Ⅲ is for measurements per formed in the building installation Pollution Degree 2 Operating Ambient 0 C 30 C 80 R H 30 C 40 C 75 R H 40 C 50 C 45 R H Storage Temperature 20 C to 6...

Page 9: ...cations Accuracy is reading number of digits at 23 C 5 C less than 75 R H 1 DC Volts Range Resolution Accuracy Over voltage protection 200mV 100 µV 0 5 rdg 1dgt 2V 1mV 20V 10mV 200V 100mV 600V 1V 600V rms Input Impedance 10MΩ ...

Page 10: ...ge Resolution Accuracy Over voltage protection 200mV 100 µV 1 3 rdg 4dgt 40Hz to 500Hz 2V 1mV 20V 10mV 200V 100mV 600V 1V 600V rms AC Conversion Type Average Sensing rms indication Input Impedance 10MΩ less than 100pF ...

Page 11: ...age Burden 200 µA 0 1 µA 1 0 rdg 1dgt 600mV max 2mA 1 µA 20mA 10 µA 200mA 100 µA 20A 10mA 2 0 rdg 3dgt 900mV max Overload Protection 1A 500V fast blow fuse for µAmA input 16A 500V fast blow fuse for 20A input 20A Range 30 seconds maximum above 10A ...

Page 12: ...Hz 500Hz 600mV rms max 2mA 1 µA 20mA 10 µA 200mA 100 µA 20A 10mA 2 5 rdg 3dgt 40Hz 500Hz 900mV rms max AC Conversion Type Average sensing rms indication Overload Protection 1A 500V fast blow fuse for µAmA input 16A 500V fast blow fuse for 20A input 20A Range 30 seconds maximum above 10A ...

Page 13: ...olution Accuracy Max Test Current Max Open Circuit Voltage 200Ω 0 1Ω 0 8 rdg 4dgt 2 5mA 3 2V 2KΩ 1Ω 0 8 rdg 1dgt 200 µA 20KΩ 10Ω 40 µA 200KΩ 100Ω 4 µA 20MΩ 10KΩ 1 5 rdg 5dgt 40nA 0 5V 2MΩ 1KΩ 400nA Overload Protection 600V rms ...

Page 14: ...g 5 dgt 1 5mA 3 2V For 0 4V 0 9V Overload Protection 600V rms Continuity Built in buzzer sound when resistance is less than 50Ω 7 Auto Power Off The meter will automatically shut itself off after approximately 30 minutes after power on The meter can be turned back on by switching to another range ...

Page 15: ...14 8 Capacitance Range Resolution Accuracy Test Frequency 2nF 1pF 40Hz 20nF 10pF 200nF 100pF 2 µF 1nF 200 µF 100nF 2 0 rdg 4dgt 20 µF 10nF ...

Page 16: ... 9 Frequency Counter Range Resolution Accuracy 5Vrms Max Sensitivity Min Input Frequency Overload Protection 2K Hz 1 Hz 1 0 rdg 3dgt 200m Vrms min 20 Hz 20K Hz 10 Hz 200 Hz 200K Hz 100 Hz 20K Hz 600V rms ...

Page 17: ...o retain the instrument in safe condition 3 1 Preparation and Caution before Measurement 1 Before measurement warm up for at least 30 seconds 2 When the rotary function selector is changed during measurement be sure to do so only after removing the test leads from the equipment 3 If the equipment is used near noise generating equipment be aware that the display may become unstable or indicate larg...

Page 18: ... Connect black test lead to COM terminal and red test lead to the VΩHz input terminal 4 Connect test leads to measuring points and read the displayed value 5 Warning Do not exceed 600V rms limits stated in the specification WARNING TO AVOID ELECTRIC SHOCK HAZARD OR DAMAGE TO THE METER DO NOT ATTEMPT TO MEASURE VOLTAGES THAT MIGHT EXCEED 600 V rms DO NOT APPLY MORE THAN 600V rms BETWEEN THE COMMON ...

Page 19: ...for measurements up to 200mA For measuring current between 200mA and 20A connect red test lead to 20A terminal 5 Connect test leads to measuring points and read the displayed value 3 4 Resistance Measurement 1 Set the rotary switch to the required position 2 Connect black test leads to COM terminal and red test lead to VΩHz input terminal 3 Connect test leads to measuring points and read the displ...

Page 20: ...fective 000 short circuit or 1 non conductance is displayed Reverse Check of Diode If the diode under test is good 1 is displayed If the diode under test is defective 000 or other values are displayed 3 6 Continuity Check by Sounder 1 Set the rotary switch to the position 2 Connect the black test lead to the COM terminal and the red test lead to VΩHz input terminal 3 Connect test leads to the circ...

Page 21: ... the testing procedure Never apply voltage to the Capacitor Test jacks Serious damage may result 4 Insert the capacitor into jacks and read the displayed value 3 8 Frequency Measurement 1 Set the rotary switch to the required position 2 Connect black test lead to COM terminal and red test lead to VΩHz input terminal 3 Connect test leads to measuring points and read the displayed value ...

Page 22: ...voided as far as possible and if inevitable shall be carried out by a skilled person who is aware of the hazard involved Whenever it is likely that the protection has been impaired the instrument shall be made inoperative and be secured against any unintended operation The protection is likely to be impaired if for example the apparatus shows visible damage fails to perform the intended measuremen...

Page 23: ...hree screws from the case bottom 4 Lift the end of the case bottom until it gently unsnaps from the case top at the end nearest the LCD 5 Lift the battery from the case top and carefully disconnect the battery from battery connector leads 6 Snap the battery connector to the terminals of a new battery and reinsert the battery into the case top Make sure that the battery leads do not become pinched ...

Page 24: ...ng one end of the fuse loose and sliding the fuse out of the fuse holder 4 Install a new fuse of the same size and rating Make sure the new fuse is centered in the fuse holder 5 Make sure that the case top rotary switch and the circuit board switch both are in the OFF position 6 Replace the case top and case bottom Make sure that the O rings of case screws are properly seated the battery leads do ...

Page 25: ...24 Case Bottom Case Top 9V Battery Battery Connector Fuse 2 Fuse 1 Figure 2A Figure 2B Battery and Fuse Replacement Case Bottom Case Top ...

Page 26: ...25 HOW TO USE THE PROBE HOLDER Clip one probe on the holster for one handed meter operation Wrap the leads around the holster to store the test probes ...

Page 27: ...26 HOW TO USE THE TILT STAND AND HOLSTER Swing the stand out for easier meter reading Swing the upper holder out and hook it over a door ...

Page 28: ...27 HOW TO USE THE TILT STAND AND HOLSTER Meter in holster face down Hang on a nail at the workbench ...

Page 29: ... Pao Zong Rd Shin Tien Taipai 23115 Taiwan R O C P O Box 12 24 Shin Tien Taiwan Tel 886 2 29178820 Fax 886 2 29170848 E MAIL info appatech com http www appatech com Printed In Taiwan Copright 1997 APPA Tech Corp All rights reserved ...

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