Wuhan Huatian Electric Power Automation HTDT-10A Manual Download Page 4 | Manualshive

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Summary of Contents for HTDT-10A

Page 1: ...ou can find the changes in the appendix Sorry for the inconvenience If you have further questions welcome to contact with our service department The input output terminals and the test column may bring voltage when you plug draw the test wire or power outlet they will cause electric spark PLEASE CAUTION RISK OF ELECTRICAL SHOCK Company Address T4 No 41 High tech 2 Road East Lake High tech Developm...

Page 2: ... and prevent the product or other relevant subassembly to damage In order to avoid possible danger this product can only be used within the prescribed scope Only qualified technician can carry out maintenance or repair work To avoid fire and personal injury Use Proper Power Cord Only use the power wire supplied by the product or meet the specification of this produce Connect and Disconnect Correct...

Page 3: ...ad the instruction manual to acquire information about the ratings Do Not Operate without Covers Do not operate this product when covers or panels removed Use Proper Fuse Only use the fuse with type and rating specified for the product Avoid Touching Bare Circuit and Charged Metal Do not touch the bare connection points and parts of energized equipment Do Not Operate with Suspicious Failures If yo...

Page 4: ... Security Terms Warning indicates that death or severe personal injury may result if proper precautions are not taken Caution indicates that property damage may result if proper precautions are not taken ...

Page 5: ...5 Contents I Overview 6 II Functions 7 III Features 7 IV Specifications 8 V Panel Layout 9 VI Work Principle 9 VII Operation Methods 10 VIII Problems and Solutions 12 IX Notes 13 X Packing List 13 ...

Page 6: ... and earth mat In the long term running the connection part may be rusty even ruptured due to moisture and other factors which will cause the resistance increases which at connection point of ground down lead and the main earth mat and thus cannot meet the requirements of electrical power regulations and standard It also cause the instrument hides danger in work seriously even cause the instrument...

Page 7: ... fast test speed good reproducibility and intuitive readings It is an ideal special instrument that meets the requirements of regulations and standard II Functions The instrument is suitable for measuring on resistance value between electrical equipment grounding down lead and earth mat or adjacent devices It also applies to measure low value resistor III Features 1 Power technology For latest pow...

Page 8: ...tors can enhance vibration resistance 4 Simple operation just pressing test key you can get the measured result The LED display is easy for reading and has good reproducibility 5 Convenience Small size light weight and easy to carry Panels and chassis is an organic whole that having good shock resistance IV Specifications 1 Measurement Range 1 1999mΩ 2 Resolution 1mΩ 3 Test Current DC 1A 2A 5A 10A...

Page 9: ...ight 5kg Accessories excluded V Panel Layout Figure 1 Panel Layout diagram 1 Resistance Display mΩ 2 Grounding 3 Current Output I 4 Measurement Input U 5 Measurement Input U 6 Current Output I 7 220V Power Outlet 8 Power Switch 9 Stop Measure 10 Current Selection VI Work Principle The instrument bases on the current voltage testing principle ...

Page 10: ... Rx current value can be got from the ammeter I and the voltage between V and V will be shown in the voltmeter V Based on data I and V the resistance value can be calculated From the above diagram we can know that using four terminal measurement can eliminate the error caused by lead resistance and contact resistance VII Operation Methods 1 Wire as shown in the Figure 3 ...

Page 11: ...ack terminal U 2 First find out the down lead well connected with ground mat as a reference point 3 The two test lines 50 m 5 m connect two ends of them to wire holder Connect other two ends with test clips to the reference point and measured point among which the black test line clips the reference point the red test line clips all tested points 4 In order to get accurate measured data please kee...

Page 12: ...Completed measurement please disconnect the power switch and put the test lines into accessories bag VIII Problems and Solutions Problems Solutions No respond after powering on on the LCD no display Check if AC power is on Check the power cables Check if the Fuse is Blown out Under test resistance value is evidently larger or 1 beyond range Check if measured resistance value is too large Check if ...

Page 13: ...y grounded during testing 4 Replacing the fuse and accessories please use the same model with the instrument 5 The instrument should be put in ventilated dry cool and cleaning place Pay attention to humid or erosive gas that may damage this equipment X Packing List 1 Instrument host 1 2 Test line 50m red line and 4m black line 3 AC three wire power cord 1 1 4 Earth lead 1 5 Test line accessory bag...

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