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HT61 - HT62 

 

 

EN - 2

1. PRECAUTIONS AND SAFETY MEASURES 

In this manual, the word 

instrument

” 

generically indicates models 

HT61

 and 

HT62

 if not 

specified otherwise. The instrument has been designed in compliance with standard 
IEC/EN61010-1 relevant to electronic measuring instruments. For your safety and in order 
to prevent damaging the instrument, please carefully follow the procedures described in 
this manual and read all notes preceded by symbol 

 with the utmost attention.

 

Before and after carrying out measurements, carefully observe the following instructions: 
 

  Do not carry out any measurement in humid environments.

 

  Do not carry out any measurements in case gas, explosive materials or flammables are 

present, or in dusty environments.

 

  Avoid any contact with the circuit being measured if no measurements are being 

carried out.

 

  Avoid any contact with exposed metal parts, with unused measuring probes or circuits

 

  Do not carry out any measurement in case you find anomalies in the instrument such 

as deformation, breaks, substance leaks, absence of display on the screen, etc.

 

  Pay special attention when measuring voltages higher than 20V, since a risk of 

electrical shock exists.

 

 

In this manual, and on the instrument, the following symbols are used: 

 

 

Warning: observe the instructions given in this manual; improper use could 
damage the instrument or its components. 

 

 

Double-insulated meter 

 

 

 

AC voltage 

 

 

 

DC voltage or current 

 

 

 

Connection to earth 

 

1.1. PRELIMINARY 

INSTRUCTIONS 

  This instrument has been designed for use in environments of pollution degree 2. 

  It can be used for 

VOLTAGE

 and 

CURRENT

 measurements on installations with CAT 

IV 600V and CAT III 1000V. 

  We recommend following the normal safety rules devised by the procedures for 

carrying out operations on live systems and using the prescribed PPE to protect the 
user against dangerous currents and the instrument against incorrect use. 

  In case the lack of indication of the presence of voltage may represent a danger for the 

operator, always carry out a continuity measurement before carrying out the 
measurement on the live system, in order to confirm the correct connection and 
condition of the leads. 

  Only the leads supplied with the instrument guarantee compliance with the safety 

standards. They must be in good conditions and be replaced with identical models, 
when necessary. 

  Do not test circuits exceeding the specified voltage limits. 

  Do not perform any test under environmental conditions exceeding the limits indicated 

in § 6.2.1. 

  Check that the battery is correctly inserted.

 

  Make sure that the LCD display and the rotary switch indicate the same function.

 

Summary of Contents for HT61

Page 1: ...Copyright HT ITALIA 2017 Version EN 2 00 17 07 2017 ENGLISH User manual...

Page 2: ...unction 8 5 OPERATING INSTRUCTIONS 9 5 1 DC Voltage measurement 9 5 2 AC Voltage measurement 10 5 3 AC DC Voltage measurement with low impedance LoZ 11 5 4 Frequency and Duty Cycle measurement 12 5 5...

Page 3: ...ment the following symbols are used Warning observe the instructions given in this manual improper use could damage the instrument or its components Double insulated meter AC voltage DC voltage or cur...

Page 4: ...alled overvoltage category is 6 7 4 Measured circuits reads OMISSIS Circuits are divided into the following measurement categories Measurement Category IV is for measurements performed at the source o...

Page 5: ...families of instruments provide identical results With distorted waves instead the readings shall differ Average value meters provide the RMS value of the sole fundamental wave TRMS meters instead pr...

Page 6: ...nt We also recommend checking that the packaging contains all components indicated in 6 3 1 In case of discrepancy please contact the Dealer In case the instrument should be returned please follow the...

Page 7: ...MENT CAPTION 1 LCD display 2 RANGE key 3 MAXMIN key 4 Hz key 5 REL key 6 MODE key 7 HOLD key 8 Rotary selector switch 9 Input terminal 10A 10 Input terminal VHz HT61 or Hz V HT62 11 Input terminal mA...

Page 8: ...e the same key is pressed again The display shows the symbol associated with the selected function MAX for maximum value and MIN for minimum value The MAX MIN key is not active when the HOLD function...

Page 9: ...arily connect the test leads between phase and neutral cables at least for 5s then perform the phase PE measurement to avoid unexpected trips out 4 2 8 Disabling the Auto Power Off function The instru...

Page 10: ...il the symbol DC is displayed 3 Insert the red cable into input terminal VHz HT61 or Hz V HT62 and the black cable into input terminal COM 4 Position the red lead and the black lead respectively in th...

Page 11: ...mbol AC is displayed 3 Insert the red cable into input terminal VHz HT61 or Hz V HT62 and the black cable into input terminal COM 4 Position the red lead and the black lead respectively in the spots o...

Page 12: ...ed cable into input terminal VHz HT61 or Hz V HT62 and the black cable into input terminal COM 4 Position the red lead and the black lead respectively in the desired spots of the circuit to be measure...

Page 13: ...ion Hz 2 Press the Hz key to select measurements Hz or in order to display the values of frequency and duty cycle of input voltage 3 Insert the red cable into input terminal VHz HT61 or Hz V HT62 and...

Page 14: ...or Hz V HT62 and the black cable into input terminal COM 3 Position the test leads in the desired spots of the circuit to be measured see Fig 6 The display shows the value of resistance 4 If the disp...

Page 15: ...red cable into input terminal VHz HT61 or Hz V HT62 and the black cable into input terminal COM 4 Position the leads at the ends of the diode to be tested see Fig 7 respecting the indicated polarity T...

Page 16: ...acitance measurement 1 Select position 2 Press the MODE key until the symbol nF is displayed 3 Insert the red cable into input terminal Hz V and the black cable into input terminal COM 4 Press the REL...

Page 17: ...C F 2 Press the MODE key until the symbol C or F is displayed 3 Insert the provided adapter into input terminals Hz V polarity and COM polarity see Fig 9 4 Connect the provided K type wire probe or t...

Page 18: ...sert the red cable into input terminal 10A or into input terminal mA A and the black cable into input terminal COM 4 Connect the red lead and the black lead in series to the circuit whose current you...

Page 19: ...ent 4 Insert the red cable into input terminal 10A or into input terminal mA A and the black cable into input terminal COM 5 Connect the red lead and the black lead in series to the circuit whose curr...

Page 20: ...sition to position and remove it 3 Remove the battery and insert a new battery of the same type see respecting the indicated polarity 4 Restore the battery compartment cover into place and turn the fa...

Page 21: ...up to 1000V DC AC TRMS voltage with low impedance LoZ Range Resolution Accuracy 50 400Hz Input impedance Protection against overcharge 600 0mV 0 1mV 3 0 rdg 40dgt approx 3k 600VDC ACrms 6 000V 0 001V...

Page 22: ...g 8dgt 1000VDC ACrms 99 99Hz 0 01Hz 999 9Hz 0 1Hz 9 999kHz 0 001kHz 99 99kHz 0 01kHz 999 9kHz 0 1kHz 9 999MHz 0 001MHz 40 00MHz 0 01MHz Sensitivity 0 8Vrms 20 80 duty cycle and f 100kHz 5Vrms 20 80 du...

Page 23: ...nt backlight and bargraph Sampling frequency 2 times s 7 2 ENVIRONMENT 7 2 1 Environmental conditions for use Reference temperature 18 C 28 C 64 F 82 F Operating temperature 5 C 40 C 41 F 104 F Allowa...

Page 24: ...sequence of improper packaging Repairs which may become necessary as a consequence of interventions performed by unauthorized personnel Modifications to the instrument performed without the manufactur...

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