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   HT77C 

 

 

EN - 13

7.2. ENVIRONMENT 

7.2.1. Environmental conditions for use 

Reference temperature: 

23° ± 5°C (73° ± 41°F) 

Operating temperature: 

-10°C ÷ 30°C (14°F ÷ 86°F) (RH 

 80%) 

 

30°C ÷ 40°C (86°F ÷ 104°F) (RH 

 75%) 

 

40°C ÷ 50°C (104°F ÷ 122°F) (RH 

 45%) 

Allowable relative humidity: 

<80%RH 

Storage temperature: 

-20 ÷ 60 °C (-4°F ÷ 140°F) 

Storage humidity: 

<80%RH 

Max height of use: 

2000m (6562 ft) 

Vibration: 

according to MIL-PRF-28800F Class 2 

 

This instrument satisfies the requirements of Low Voltage Directive 2014/35/EU 

(LVD) and of EMC Directive 2014/30/EU 

This instrument satisfies the requirements of 2011/65/EU (RoHS) directive and 

2012/19/EU (WEEE) directive 

 

7.3. ACCESSORIES 

7.3.1. Standard accessories 

 Carrying 

case 

  Batteries (not fitted) 

 User 

manual 

Содержание HT77C

Страница 1: ...Copyright HT ITALIA 2020 Release EN 1 00 17 04 2020 ENGLISH User manual...

Страница 2: ...6 4 3 6 Disabling the Auto Power Off function 6 5 OPERATING INSTRUCTIONS 7 5 1 AC Current measurement 7 5 2 Leakage current measurement 8 5 3 Bluetooth connection with HTLeakage APP 9 6 MAINTENANCE 10...

Страница 3: ...uits etc 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 In this manual and on the instrum...

Страница 4: ...ent category commonly called overvoltage category is In 6 7 4 Measured circuits circuits are divided into the following measurement categories OMISSIS Measurement category IV is for measurements perfo...

Страница 5: ...ly contact the forwarding agent We also recommend checking that the packaging contains all components indicated in 7 3 1 In case of discrepancy please contact the Dealer In case the instrument should...

Страница 6: ...ut the conductor as close as possible to the middle of the jaws on the intersection of the indicated marks see Fig 2 in order to meet the meter accuracy specifications CAPTION 1 Alignment marks 2 Cabl...

Страница 7: ...ll change its position In Autorange mode the instrument selects the most appropriate ratio for carrying out measurement If a reading is higher than the maximum measurable value the indication OL appea...

Страница 8: ...e see Fig 2 Correct Incorrect Fig 3 Use of the clamp for AC current measurement 1 Switch on the clamp by pressing the key 2 Open the clamp jaw and insert the cable in the middle of it see Fig 3 left p...

Страница 9: ...urement with Direct method on earth conductors 1 Switch on the clamp by pressing the key 2 Open the clamp jaw and connect the clamp as shown in Fig 4 or Fig 6 The leakage current value will be shown o...

Страница 10: ...downloaded for Android and iOS systems using the following QR codes HTLeakage APP Fig 8 Connection of instrument to a mobile device The HTLeakage APP allows the following operations Real time visualiz...

Страница 11: ...cians should perform this operation Before carrying out this operation make sure you have removed the cable being tested from inside the clamp jaw Fig 9 Batteries replacement 1 Switch off the clamp 2...

Страница 12: ...rdg C F 2 0 2 5 Add 2 5 rdg C F 2 5 3 0 Add 4 0 rdg Max Crest Factor 3 0 up to 3000dgt 2 0 3000 4500dgt 1 5 4500 6000dgt AC TRMS Current with 50 60Hz low pass filter Range Resolution Accuracy 30Hz 50...

Страница 13: ...mode voltage E13 No error added Frequency E14 No error added Repeatability E15 No error added 7 1 2 Electrical specifications Conversion type TRMS Sample rate 5 times second Temperature coefficient 0...

Страница 14: ...orage temperature 20 60 C 4 F 140 F Storage humidity 80 RH Max height of use 2000m 6562 ft Vibration according to MIL PRF 28800F Class 2 This instrument satisfies the requirements of Low Voltage Direc...

Страница 15: ...ry as a consequence of improper packaging Repairs which may become necessary as a consequence of interventions performed by unauthorized personnel Modifications to the instrument performed without the...

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