Biddle AVO300_UG 电路图.pdf

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1、M AVO300 Series Digital Multimeters USER MANUAL MANUAL DE LUTILISATEUR BEDIENUNGSANLEITUNG MANUAL DEL USUARIO RadioFans.CN 收音机爱 好者资料库 GSAFETY WARNINGS The following safety information must be observed to insure maximum personal safety during the operation at this meter: IDo not use in wet environmen

2、ts IMeasurements beyond the maximum selected range must not be attempted. IExtreme care must be taken when measuring above 50 V , especially on live bus-bars. ITo measure voltage, the instrument must not be switched to a current or resistance range, or to the diode check or buzzer position. ICircuit

3、s must be de-energised and isolated before carrying out resistance tests. IThe rotary selector switch must only be turned after removing test connections. IAll external voltages must be disconnected from the instrument before removing the battery. ITest leads and prods must be in good order, clean,

4、and with no broken or cracked insulation. IUK Safety Authorities recommend the use of fused test leads when measuring voltage on high energy systems. IReplacement fuses must be of the correct type and rating. IThe instrument must not be used if any part of it is damaged. ICheck for correct instrumen

5、t operation by testing a known voltage before and after use. Do not use if misleading results are obtained. IWarnings and precautions must be read and understood before an instrument is used. They must be observed during the operation of this instrument. 2 Users of this equipment and/or their employ

6、ers are reminded that National Health and Safety Legislation requires them to carry out valid risk assessments of all electrical work so as to identify potential sources of electrical danger and risk of electrical injury such as inadvertent short circuits. Where the assessments show that the risk is

7、 significant then the use of fused test leads may be appropriate. NOTE THE INSTRUMENT MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT PERSONS. RadioFans.CN 收音机爱 好者资料库 Symbols used on the instrument are: FCaution: risk of electric shock GCaution: refer to accompanying notes tEquipment protected t

8、hroughout by Double Insulation (Class II) cEquipment complies with current EU directives. Equipment complies with C tick requirements CONTENTS 3 Introduction4 Symbols and annuniciators 4 Operation4 Mode button4 Hold button4 Backlight button (AVO310 only)4 Max/Min button (AVO310 only)5 DC Voltage mea

9、surements5 AC Voltage measurements5 DC Current measurement5 AC Current measurement5 Resistance measurement6 Continuity check6 Diode test6 Specifications7 Battery and fuse replacement10 Battery installation10 Replacing the fuses10 Accessories11 Repairs and warranty12 MANUAL DE LUTILISATEUR13 BEDIENUN

10、GSANLEITUNG27 MANUAL DEL USUARIO41 N13117 RadioFans.CN 收音机爱 好者资料库 To turn on the instrument turn the range knob from the OFF position to any measurement range. Note: For best battery life ALWAYS turn the function switch to the OFF position when the meter is not in use. These meters have an Auto OFF

11、that automatically shuts the meter OFF if left switched on. AVO300:15 minutes, AVO310: 30 minutes. Note: On some low AC and DC voltage ranges, with the test leads not connected to a device, the display may show a random, changing reading. This is normal and is caused by the high-input sensitivity. T

12、he reading will stabilize and give a proper measurement when connected to a circuit. MODE button To select AC or DC measurement when in Amps, mA or uA ranges. HOLD button The HOLD function allows the meter to freeze a measurement for later reference. 1. Press the HOLD button to freeze the reading on

13、 the indicator. The HOLD message will be appear in the display. 2. Press the HOLD button again to return to normal operation. BACKLIGHT button (AVO310 only) 1. Press the BACKLIGHT button to switch on the display light. 2. Press the BACKLIGHT button again to exit the light mode. INTRODUCTIONOPERATION

14、 4 Thank you for purchasing one of the Megger AVO300 series digital multimeters. For your own safety and to get the maximum benefit from your instrument, please ensure that you read and understand the following safety warnings and instructions before attempting to use the instrument. This user guide

15、 describes the operation and functions of the following AVO300 series of digital multimeters. AVO300 AVO310 SYMBOLS AND ANNUNCIATORS Continuity BATLow Battery Diode test HOLDData Hold AUTOAutoRanging AC Alternating Current or Voltage DCDirect Current or Voltage MAX/MINStores the highest or lowest me

16、asurement Backlight VVolts A, mA, uA Current range decimal point, value and symbol (AC, V , etc.). DC CURRENT MEASUREMENT CAUTION: Do not make current measurements on the 10A scale for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the bla

17、ck test lead plug into the negative (COM) jack. 2. For current measurements up to 4000 A DC, set the function switch to the uA position and insert the red test lead plug into the (A) jack. 3. For current measurements up to 400 mA DC, set the function switch to the mA range and insert the red test le

18、ad plug into the (mA) jack. 4. For current measurements up to 10 A DC, set the function switch to the A position and insert the red test lead plug into the 10 A jack. 5. Press the AC/DC button until DC appears in the display. 6. Remove power from the circuit under test, then open up the circuit at t

19、he point where you wish to measure current. 7. Connect the black test probe to the negative side of the circuit. Connect the red test probe to the positive side of the circuit. 8. Apply power to the circuit. 9. Read the current in the display. The display will indicate the proper decimal point, valu

20、e and symbol. 10. Remove power from circuit before disconnecting test leads 5 MAX/MIN button (AVO310 only) The MAX/MIN function allows the meter to capture the highest or lowest measurement for later reference. 1. Press the MAX/MIN button to begin measurement. The indicator MAX or MIN will appear in

21、 the display. 2. If the MAX MIN messages are flashing, the instrument is in MAX/MIN mode but not recording, press the MAX/MIN button to select a mode. 3. To return to normal AUTO measurement mode, hold down the MAX/MIN button for 2 seconds. DC VOLTAGE MEASUREMENTS 1. Set the function switch to the V

22、 DC position (mV will appear in the display). 2. Insert the black test lead plug into the negative (COM) jack and the red test lead plug into the positive (V) jack. 3. Connect the test probe tips to the circuit under test. Be sure to observe the correct polarity (red lead to positive, black lead to

23、negative). 4. Read the voltage in the display. The display will indicate the proper decimal point and value. If the polarity is reversed, the display will show (-) minus before the value. AC VOLTAGE MEASUREMENTS 1. Set the function switch to the V AC position. 2. Insert the black test lead plug into

24、 the negative (COM) jack and the red test lead plug into the positive (V) jack. 3. Connect the test probe tips to the circuit under test. 4. Read the voltage in the display. The display will indicate the proper 6 AC CURRENT MEASUREMENT CAUTION: Do not make current measurements on the 10 A scale for

25、longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the black test lead plug into the negative (COM) socket. 2. For current measurements up to 10 A, set the function switch to the A position and insert the red test lead plug into the (10 A) jac

26、k. 3. For current measurements up to 400 mA, set the function switch to the mA range and insert the red test lead plug into the (mA) jack. 4. For current measurements up to 10 A AC, set the function switch to the A position and insert the red test lead plug into the 10 A jack. 5. Press the MODE butt

27、on. The measurement mode will change between AC or DC as required. 6. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current. 7. Connect the black test probe to the negative side of the circuit. Connect the red test probe to the positive sid

28、e of the circuit. 8. Apply power to the circuit. Read the current in the display. The display will indicate the proper decimal point, value and symbol. 11. Remove power from circuit before disconnecting test leads RESISTANCE MEASUREMENT WARNING: To avoid electric shock, disconnect power to the unit

29、under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1. Set the function switch to the position. 2. Insert the black test lead plug into the negative (COM) socket and the red test lead plug into the positive jack. 3. Conne

30、ct the test probe tips across the circuit or part under test. It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading. 4. Read the resistance in the display. The display will indicate the proper decimal point, value and symbo

31、l. CONTINUITY CHECK WARNING: To avoid electric shock, never measure continuity on circuits or wires that have voltage on them. 1. Set the range switch to the position. 2. Insert the black lead plug into the COM socket and the red test lead plug into the positive socket. 3. Connect the test probe tip

32、s to the circuit or wire you wish to check. 4. If the resistance is less than 30 , the audible signal will sound. The display will also show the actual resistance in ohms. DIODE TEST WARNING: To avoid electric shock, do not test any diode that has voltage on it. 1. Set the function switch to the pos

33、ition. 2. Insert the black test lead plug into the COM socket and the red test lead plug into the socket. 3. Connect the test probe tips to the diode or semiconductor junction you wish to test. Note the meter reading. 4. Reverse the probe polarity by switching probe position. Note this reading. Insu

34、lation: Class 2, Double insulation. Overvoltage category:(AVO300/310) 600V CATIII or 1000V CATII Display AVO300: 4000 counts LCD display, 25.4mm high AVO310:4000 counts LCD display, 20mm high Backlight:AVO310 only Polarity: Automatic, (-) negative polarity indication. Over-range: OL mark indication.

35、 Low battery indication:A Battery symbol is displayed when the battery voltage drops below the operating level. Measurement rate: 2 times per second nominal. Auto power off AVO300:Meter automatically shuts down after approx. 15 minutes of inactivity. AVO310:Meter automatically shuts down after appro

36、x. 30 minutes of inactivity. Operating environment: -10C to 50C (14F to 122F) at 70% relative humidity. Storage temperature: -30C to 60C (-4F to 140F) at 80% relative humidity. 5. The diode or junction can be evaluated as follows: A. If one reading shows a value and the other reading shows OL, the d

37、iode is good. B. If both readings show OL, the device is open. C. If both readings are very small or zero, the device is shorted. NOTE: The value indicated in the display during the diode check is the forward voltage. 7 SPECIFICATIONS 8 Accuracy Accuracy is given at 18C to 28C (65F to 83F), less tha

38、n 70% RH DC Voltage (Auto-ranging) RangeResolutionAccuracy 400.0 mV0.1 mV0.5% of rdg 2 digits 4.000 V1 mV 40.00 V10 mV0.8% of rdg 2 digits 400.0 V100 mV 1000 V1 V1% of rdg 2 digits Input Impedance: 7.8 M. Maximum Input: 1000 V dc AC Voltage (Auto-ranging) RangeResolutionAccuracy 400.0 mV (AV0310 onl

39、y)0.1 mV 4.000 V1 mV1%of rdg 5 digits 40.00 V10 mV 400.0 V100 mV 1000 V1 V1.5%of rdg 5 digits 400 mV (AVO310 only) Input Impedance: 7.8 M. AC Response: 50Hz 60Hz Maximum Input: 1000 V AC rms. Relative humidity:90% (0C to 30C); 75% (30C to 40C); 45% (40C to 50C) For inside use, max height: Operating:

40、3000 m Storage: 10,000 m Pollution degree:2 Safety The instrument complies with IEC/EN 61010-1:2001-02 and IEC/EN 61010-031:2002 Power: One 9 V battery, NEDA 1604, IEC 6F22. Dimensions: 182 (H) x 82 (W) x 55 (D) mm Weight:Approx. 375g. EMC IEC/EN61326:1997 DC Current (Auto-ranging) RangeResolutionAc

41、curacy 400.0 A0.1 A 4000 A1 A 40.00 mA10 A 300.0 mA100 A 10 A10 mA2.5% of rdg 3 digits Overload Protection: 0.5 A/1000 V and 10 A/1000 V fuse. Maximum Input:4000 A DC on A range 400 mA DC on mA range 10 A DC on 10 A range AC Current (Auto-ranging) RangeResolutionAccuracy 400.0 A0.1 A 4000 A1 A 40.00

42、 mA10 A 300.0 mA100 A 10 A10 mA3.0% of rdg 5 digits Overload Protection: 0.5 A/1000 V and 10 A/1000 V fuse. AC Response: 50 Hz to 400 Hz Maximum Input:4000 A AC rms on A 400 mA AC rms on mA 10 A AC rms on 10 A range. Resistance (Auto-ranging) RangeResolutionAccuracy 400.0 0.1 0.8% of rdg 5 digits 4.

43、000 k1 0.8% of rdg 2 digits 40.00 k10 400.0 k100 4.000 M1 k 40.00 M10 k Input Protection: 1000 V DC or 1000 V AC rms. AVO300: Diode Test Test currentResolutionAccuracy 0.3 mA typical/Open 1.5 V1 mV10% of rdg 5 digits Open circuit voltage: 1.5 V DC typical Overload protection: 1000 V DC or 1000 V AC

44、rms. 9 1.0% of rdg 3 digits 1.5% of rdg 5 digits 3% of rdg 8 digits 10 WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery door. 1. When the batteries become exhausted or drop below the operating voltage, the battery warning symbol will

45、appear in the LCD display. The battery should be replaced. 2. Follow instructions for installing battery. See the battery installation section of this manual. 3. Dispose of the old battery properly. WARNING: To avoid electric shock, do not operate your meter with the battery cover removed. BATTERY I

46、NSTALLATION WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover. Do not operate the instrument with the battery cover removed 1. Disconnect the test leads from the meter. 2. Open the battery cover by loosening the screw using a cro

47、ss head screwdriver. 3. Insert the battery into battery holder, observing the correct polarity. 4. Put the battery cover back in place. Secure with the two screws. NOTE: If your meter does not work properly, check the fuses and battery to make sure that they are still good and that they are properly

48、 inserted. AVO310: Diode Test Test currentResolutionAccuracy 1 mA typical/Open MAX.3 V1 mV10% of rdg 5 digits Open circuit voltage: MAX. 3 V DC Overload protection: 1000 V DC or 1000 V AC rms. Audible continuity Audible threshold: AVO300: Less than 10 to 30 Test current: MAX. 0.3 mA AVO310: Less tha

49、n 35 Test current MAX. 1.5 mA Overload protection: 1000 V DC or 1000 V AC rms. BATTERY AND FUSE REPLACEMENT 11 ACCESSORIES REPLACING THE FUSES WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the fuse/battery cover. 1. Disconnect the test leads from the meter and any item under test. 2. Open the fuse door by loosening the screw on the door using a cross head screwdriver. 3. Remove the old fuse from its holder by gently pulling it out. 4. Install the new fuse into the holder. 5. Always use a fuse of the pro