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IDEAL INDUSTRIES, INC. 
TECHNICAL MANUAL 
MODEL: 61-340 
MODEL: 61-342 
Multimeter Service Information 

 

 

The Service Information provides the following information: 

• 

Precautions and safety information 

• 

Specifications 

• 

Basic maintenance (cleaning, replacing the battery and fuses) 

• 

Performance test procedures 

• 

Calibration and calibration adjustment procedures 

   

 

 

Form Number:  TM61340-2 

Revision: 2.    Date: November 2007

Form Number 

2

 

TM61340-2

 Rev 

 November 2007

 

Содержание 61-340

Страница 1: ...on provides the following information Precautions and safety information Specifications Basic maintenance cleaning replacing the battery and fuses Performance test procedures Calibration and calibration adjustment procedures Form Number TM61340 2 Revision 2 Date November 2007 Form Number 2 TM61340 2 Rev November 2007 ...

Страница 2: ...Environment Characteristics 9 Certifications and Compliances 9 Required Equipment 10 Basic Maintenance 11 Opening the Meter Case 11 Replacing the Battery 11 Replacing Fuses 12 Fuse Replacement 12 Cleaning 12 Performance Tests 13 Testing the Display 13 Testing the Voltage Function 14 15 Testing the DC Current Functions 15 16 Testing the AC Current Functions 16 17 Testing the Resistance Function 18 ...

Страница 3: ...recautions and Safety Information Use the meter only as described in the Service Manual If you do not do so the protection provided by the meter may be impaired Read the Safety Information page before servicing this product In this manual a Warning identifies conditions and actions that pose hazard s to the user a Caution identifies conditions and actions that may damage the meter or the test inst...

Страница 4: ... fuse type and rating specified for this product Do not operate without covers To avoid personal injury do not apply any voltage or current to the product without covers in place Do Not Exceed the maximum rated input limits as marked on the meter Electric overload Never apply a voltage to a connector on the product that is outside the range specified for that connector Avoid electric shock To avoi...

Страница 5: ...omatic power off time Automatic power off 10minutes Power source 9 0V battery types NEDA 1604 JIS006P IEC6F22 for both 61 340 and 61 342 Maximum input voltage 1000Vrms CAT III between V and COM Maximum floating voltage 1000Vrms CAT III between any terminal and earth ground Maximum input current 400mA between µA mA and COM Overload protection mA connector 500mA 250V fast blow fuse Overload protecti...

Страница 6: ...V 0 1mV 1 2 8 4 000V 1mV 40 00V 10mV 400 0V 100mV 1 0 5 750V 1V 1 2 5 1000VDC or 750VAC Input Impedance 10MΩ AC Conversion Type 61 340 Average sensing rms indication calibrated to the sine wave input 61 342 AC conversion is True RMS responding calibrated to a sinusoidal waveform Crest Factor C F Peak RMS For non sinusoidal waveform C F 2 add 1 to accuracy Frequency response 40 400Hz 3a DC micro am...

Страница 7: ...digits 1 40Hz 400Hz 40 00mA 10μA 400 0mA 0 1mA 2 0 reading 5 digits 1 40Hz 400Hz 500mA 250V Fast Blow Fuse Overload Protection μA mA Input 500mA 250V Fast Blow fuse 61 340 61 342 4b AC Current 61 340 61 342 Range Resolution Accuracy Input Protection 4 000A 0 001mA 10 00A 0 01mA 2 5 reading 5 digits 1 40Hz 400Hz 10A 250V Fast Blow Fuse Overload Protection A Input 10A 250V fast blow fuse AC Conversi...

Страница 8: ...prox Overload Protection Not specified Continuity Built in buzzer sounds when resistance is less than approximately 120 Ω with a response time of approximately 100 msec 7 Capacitance for 61 340 61 342 Range Resolution Accuracy Over voltage Protection 40 00nF 10pF REL 3 reading 10 digits 400 0nF 100pF 4 000μF 1nF 40 00μF 10nF 3 reading 5 digits 400 0μF 100nF 4000μF 1 10μF 20 reading 5 digits 2 1 In...

Страница 9: ...t this mode and HOLD symbol disappear on display As data hold function this button do not effect on diode and continuity test function The secondary function of this button is backlight enable and disable If you press it more than 2 seconds the backlight will be turn on and press it more than 2 seconds again will make the backlight off 12 SELECT There are several functions at one rotary switch pos...

Страница 10: ...t function Press this button less than 2 seconds the meter enter relative measuring state and Δ symbol appear on LCD 15 Hz DUTY When you make frequency AC voltage or AC current measurement press this button to switch Hz or duty cycle test mode 16 MAX MIN Press MAX MIN button the meter enter Maximum value Minimum value record mode and MAX MIN symbol appear on LCD the LCD will display the maximum va...

Страница 11: ...service entrance CAT III Distribution level mains fixed installation CAT II Local level mains appliances portable equipment CAT I Signal level special equipment or parts of equipment telecommunication electronics Pollution Degree 2 Do not operate in environments where conductive Pollutants may be present EC Declaration of Conformity Meets the intent of Directive 89 336 EEC for Electromagnetic Comp...

Страница 12: ...Equipment Required Characteristics Recommended Model Calibrator AC Voltage Range 0 750V AC Accuracy 0 07 Basic Frequency Range 40 1KHz Accuracy 2 DC Voltage Range 0 1000V DC Accuracy 0 006 Basic Current Range 0 10A Accuracy AC 40Hz to 1KHz 0 08 Basic DC 0 02 Basic Frequency Source 1 00Hz 10MHz Accuracy 0 001 Amplitude 0 5V p p 5 0V p p square wave Accuracy 5 Resistance Range 1Ω 100MΩ Accuracy 0 03...

Страница 13: ... and remove the test leads from front terminals 2 For battery replacement follow instructions under Replacing the Battery section 3 For fuse replacement follow instructions under Fuse Replacement section Replacing the Battery The 61 340 61 342 meter are both powered by 9V types are NEDA 1604 JIS006P IEC 6F22 1 Remove the rubber holster 2 Remove the screw on the battery cover and open the battery c...

Страница 14: ...screw on the battery cover and open the battery cover 3 Remove the two screws at the bottom of back cover and a screw under the support stand 4 Take out the old battery and remove the back case cover 5 Replace the defective fuse with the standard rated fuse for this meter 6 Return the back case cover reinsert the case screws a It is recommended you replace the old battery with new battery 7 Return...

Страница 15: ...mum of 75 relative humidity To perform the following tests it is not necessary to open the case no adjustments are necessary merely make the required connections apply the designated inputs and determine if the reading on the meter display falls within the acceptable range indicated If the meter fails any of these tests it needs calibration adjustment or repair Testing the Display Turning the mete...

Страница 16: ... 1 the meter does not meet specification Table 1 DC Voltage Test Step Range Input Reading 1 400mV 300 0mV 297 3 to 302 7 2 400mV 4 0mV 3 6 to 4 4 3 400mV 300 0mV 297 3 to 302 7 4 4V 3 000V 2 975 to 3 025 5 40V 30 00V 29 75 to 30 25 6 400V 300 0V 297 5 to 302 5 7 1000V 1000V 987 to 1013 1 Turn the rotary switch to position 2 Set the calibration for the voltage and frequency from step 1 to 10 in Tab...

Страница 17: ...n the rotary switch to a Press the SELECT button to select the DC function 3 Apply the inputs for steps 1 3 in Table 3a 4 For each input compare the reading on the meter display to the reading for your meter in Table 3a 5 If the display reading falls outside of the range shown in Table 3a the meter does not meet specification Table 3a DC microamperes Test Step Range Source Reading 1 400µA 4 0µA 3 ...

Страница 18: ... AC microampere Function for 61 340 and 61 342 To verify the accuracy of AC and DC current measurement functions do the following 1 Connect the calibrator to the and COM inputs on the meter 2 Turn the rotary switch to a Press the SELECT button to select the AC function b Press the REL button to make the display is zero 3 Apply the inputs for steps 1 6 in Table 4a 4 For each input compare the readi...

Страница 19: ...30 00mA 400Hz 29 35 to 30 65 3 400 mA 300 0mA 60Hz 293 5 to 306 5 4 400 mA 300 0mA 400Hz 293 5 to 306 5 Testing the AC A function for 61 340 61 342 1 Connect the calibrator to the 10A and COM inputs on the meter 2 Turn the rotary switch to a Press the SELECT button to select the AC function b Press the REL button to make the display is zero 3 Apply the inputs for steps 1 4 in Table 4c 4 For each i...

Страница 20: ...Capacitance Function for 61 340 61 342 The meter measures capacitance by charging the capacitor with a known direct current measuring the resultant voltage and calculating the capacitance If the same capacitance is measured on an impedance bridge a different reading may result This variance is likely to be greater at higher frequencies To verify the accuracy of the capacitance measuring function d...

Страница 21: ...er s rotary switch to Press the SELECT button to select the function The DVM display should display OL 3 Insert a Si diode with correct polarity and The meter display should read within 0 5 0 7Vdc 4 Reverse polarity on the Si diode The meter display should read OL Checking the Continuity Function for 61 340 61 342 To check the diode test function do the following 1 Connect the DVM Digital Voltage ...

Страница 22: ...o 90 13 3 1kHz 900Hz 3V rms 898 7 to 901 3 4 10kHz 9kHz 3V rms 8 987 to 9 013 5 100kHz 90kHz 3V rms 89 87 to 90 13 6 1MHz 900kHZ 3V rms 898 7to 901 3 Testing the Duty Cycle Function for 61 340 61 342 To verify the accuracy of the meter s frequency function do the following 1 Connect the calibrator to the and COM inputs on the meter 2 Note The accuracy of the calibrator s frequency function must be...

Страница 23: ...ture output to the source values in Table 8 for steps 1 7 4 Compare the reading on the meter display with the display reading shown in Table 8 5 If the display reading falls outside of the range shown in Table 8 the meter does not meet specification Table 8 Temperature Test Step Range Source Reading 1 ºC 0 ºC 3 to 3 2 ºC 20 ºC 23 to 17 3 ºC 300 ºC 288 to 312 4 ºC 750 ºC 725 to 775 5 ºF 4 ºF 9 to 1...

Страница 24: ...299 5 to 300 5mV 4 Disconnect the DC calibrator from the meter B AC V Calibration Adjust VR2 Model 61 340 1 Set the rotary switch to position for the AC Volts function 2 Set the output of the calibrator for 3 000V at 60Hz and connect to and COM input terminals on meter 3 Using a small flat tipped screwdriver adjust VR2 until the display reads 2 995 to 3 005Volts 4 Disconnect the AC calibrator from...

Страница 25: ...m the meter C TEMP Calibration Adjust VR3 1 Set the rotary switch to the ºF ºC position 2 Set the output of the calibrator to 300 ºC 3 Connect the calibrator temperature output to the and COM input terminals 4 Using a small flat tipped screwdriver to adjust VR3 for a 300 ºC 1 ºC 299 to 301 display Form Number 2 TM61340 2 Rev November 2007 ...

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