IDEAL INDUSTRIES 61-320 Technical Manual Download

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IDEAL INDUSTRIES, INC. TECHNICAL MANUAL
MODEL: 61-320
MODEL: 61-322
MODEL: 61-324
Multimeter Service Information

The Service Information provides the following information:

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Precautions and safety information

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Specifications

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Basic maintenance (cleaning, replacing the battery and fuses)

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Performance test procedures

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Calibration and calibration adjustment procedures

Form Number: TM61320-2-4

Revision: 4. Date: Feb 2008

Form Number TM61320-2-4

Rev 4 February 2008

Summary of Contents for 61-320

Page 1: ...formation 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 TM61320 2 4 Revision 4 Date Feb 2008 Form Number TM61320 2 4 Rev 4 February 2008 ...

Page 2: ...t characteristics 7 Certification and compliance 7 Required Equipment 8 Basic Maintenance 9 Opening the Meter Case 9 Replacing the Battery 9 Testing Fuses 10 Fuse Replacement 10 Replacing Fuses 10 Cleaning 10 Performance Tests 11 Testing the Display 11 Testing the Voltage Function 12 Testing the Resistance Function 13 Testing the Capacitance Function 13 14 Testing the Diode 14 Testing the milliamp...

Page 3: ...industries com Precautions 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 ...

Page 4: ...proper fuse To avoid fire hazard use only the 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 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 avoid injury or loss of lif...

Page 5: ... off time Automatic backlight off 30 minutes Power source 9V 1 battery for 61 322 61 324 1 5V 2 batteries for 61 320 Maximum input voltage 1000V CAT III between V and COM Maximum floating voltage 1000V CAT III between any terminal and earth ground Maximum input current 400mA between mA and COM Maximum open circuit voltage current inputs 600V between mA and COM Overload protection mA connector 1A 6...

Page 6: ...ading 5 digits 2 3 1000V rms Input Impedance 10MΩ less than 100pF 1 Frequency Response 50Hz 300Hz 2 Frequency Response 50Hz 500Hz CMRR NMRR Common Mode Rejection Ratio Normal Mode Rejection Ratio VAC CMRR 60dB at DC 50Hz 60Hz VDC CMRR 100dB at DC 50Hz 60Hz NMRR 50dB at DC 50Hz 60Hz AC Conversion Type 61 320 Average sensing rms indication calibrated to the sine wave input 61 322 61 324 AC conversio...

Page 7: ...nput 1 The specified accuracy is for sine wave at full scale and non sine wave at half scale with crest factor up to 2 5 Resistance Range Resolution Accuracy Over Voltage Protection 400 0Ω 1 0 1Ω 1 0 reading 5 digits 4 000KΩ 1Ω 40 00KΩ 10Ω 400 0KΩ 100Ω 4 000MΩ 1KΩ 0 7 reading 2 digits 40 00MΩ 2 10KΩ 1 5 reading 5 digits 600V rms Open circuit Voltage 1 3V approx 1 5 digit of reading rolling 2 2 of ...

Page 8: ...000mF 1 1μF 40 00mF 1 10μF 5 reading 20 digits 2 600V rms 1 In this range the reading maybe rolling within specification 2 Specify reading half full scale of range 9 Auto Power Off APO If the meter idles for more than 30 minutes the meter automatically turns the power off 10 Peak Hold Function Range Accuracy 400mV Unspecified 4 000V 1 5 reading 300 digits 2 40 00V 400 0V ACV 750V 1 5 reading 60 di...

Page 9: ...s Input rating V Ω mA Category III 600 Volts CAT III Distribution level mains fixed installation CAT II Local level mains appliances portable equipment Over voltage category 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 inten...

Page 10: ...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 5 00Hz 100MHz Accuracy 0 001 Amplitude 0 5V p p 1 0V p p square wave Accuracy 5 Resistance Range 1Ω 100MΩ Accuracy 0 0...

Page 11: ...lowing 1 Disconnect test leads from any live source turn the rotary switch to OFF and remove the test leads from front terminals 2 Remove the battery door by using a flat blade screwdriver to turn the battery door screws turn counter clockwise 3 The case bottom is secured to the case top by four screws and two internal snaps at the LCD end Using a Phillips head screwdriver remove the four screws R...

Page 12: ...Use only a fuse with the amperage interrupt voltage and speed rating specified Fuse rating 1A 600V Fast blow Replacing Fuses Warning To avoid electrical shock remove the test leads and any input signals before replacing the battery or fuses To prevent damage or injury INSTALL ONLY quick acting fuses with the following Amp Volt current interrupt rating FS1 Fuse 1A 600V FAST BLO Minimum interrupt ra...

Page 13: ...ecessary 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 Press HOLD key while turning the meter on from the OFF position to hold the display in...

Page 14: ...V 50Hz 2 956 to 3 044 2 3 000V 500Hz 2 956 to 3 044 3 30 00V 50Hz 29 59 to 30 41 4 30 00V 500Hz 29 59 to 30 41 5 300 0V 50Hz 295 9 to 304 1 6 300 0V 500Hz 295 9 to 304 1 7 700V 50Hz 687 to 713 8 700V 500Hz 687 to 713 6 Turn the rotary switch to V position 7 Set the calibrator for the voltage from step 1 to 6 in Table 2 8 Compare the reading on the meter display with the display reading shown in Ta...

Page 15: ...sting the Capacitance Function 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 do the fo...

Page 16: ...e built in beeper turns on Testing the milliamp mA Function for 61 322 and 61 324 To verify the accuracy of AC current measurement functions do the following 1 Connect the calibrator to the mA and COM inputs on the meter 2 Turn the rotary switch to mA 3 Apply the inputs for steps 1 to 4 in Table 5 4 For each input compare the reading on the meter display to the reading for your meter in Table 5 5 ...

Page 17: ...lls outside of the range shown in Table 7 the meter does not meet specification Table 7 DC microamp Test Step Source Reading 1 300 0µA 296 8 to 303 2 2 3000µA 2968 to 3032 Testing the Frequency Function To verify the accuracy of the meter s frequency function do the following 1 Connect the calibrator to the VΩ and COM inputs on the meter Note The accuracy of the calibrator s frequency function mus...

Page 18: ...urce Level Reading 1 3 000KHz 150mV rms 2 996 to 3 004 2 30 00KHz 150mV rms 29 96 to 30 04 3 300 0KHz 150mV rms 299 6 to 300 4 4 3 000MHz 300mV rms 2 996 to 3 004 5 30 00MHz 1V rms 29 96 to 30 04 Form Number TM61320 2 4 Rev 4 February 2008 ...

Page 19: ...the circuit board A DCV Calibration Adjust VR1 refer to Figure 4 5 1 Set the circuit board rotary switch arrow to the V position of circuit board 2 Set the output of DC calibrator for 300 0V 0 02 and connect to VΩHz and COM input terminals on meter 3 Using a small flat tipped screwdriver adjust the potentiometer VR1 until the display reads 299 0 or 300 1 4 Disconnect the DC calibrator from the met...

Page 20: ...Page 18 VR1 VR2 Figure 4 61 320 Calibration Adjustment Points Form Number TM61320 2 4 Rev 4 February 2008 ...

Page 21: ...Page 19 VR1 Form Number TM61320 2 4 Rev 4 February 2008 VR2 Figure 5 61 322 324 Calibration Adjustment Points ...

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