ENGLISH User manual Copyright HT ITALIA 2015 Release EN 1.
HT100 Table of Contents 1 SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 2 1.1 1.2 1.3 1.4 2 GENERAL DESCRIPTION ........................................................................................... 4 2.1 2.2 3 4.1.1 4.1.2 4.2 Commands description ............................................................................................................... 6 Alignment marks ............................................................................
HT100 1 SAFETY PRECAUTIONS AND PROCEDURES The instrument has been designed in compliance with directive 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 the symbol with the utmost attention.
HT100 1.2 BEFORE USE Always keep to the instructions contained in this manual. CAUTION Non compliance with the CAUTIONs and/or the instructions may damage the tester and/or its components or injure the operator. When the clamp is connected to the circuits to be tested, never touch unused terminals. When testing resistors, do not add voltage. Although there is a protection circuit, excessive voltage would cause malfunctioning. Before measuring current, remove the voltage-resistance test leads.
HT100 2 GENERAL DESCRIPTION The instrument carries out the following measurements: DC and AC voltage. Detection of AC voltage without contact (VoltSense) AC current Resistance and test continuity. Diode test The instrument, depending on the measured parameter, automatically switches between these functions. Is there also a key which performs two features: the switch on/off of the instrument and the HOLD function (see § 4.2.1 for details).
HT100 3 PREPARATION FOR USE 3.1 INITIAL The tester has been checked from a mechanical and electrical point of view before shipment. Every care has been taken to make sure that the instrument reaches you in perfect conditions. However, it’s advisable to make a rapid check in order to detect eventual damages which may have occurred in transit. Should this be the case, enter immediately the usual claims with the carrier. Make sure that all the accessories listed in § 6.3.1 are contained in the package.
HT100 4 OPERATING INSTRUCTIONS 4.1 INSTRUMENT DESCRIPTION 4.1.1 Commands description CAPTION: 1. 2. 3. 4. 5. 6. 7. “Open” clamp jaw LED for AC voltage detection LCD display key /HOLD key Input terminal COM Input terminal V- Fig. 1: Instrument description 4.1.2 Alignment marks Put the conductor within the jaws on intersection of the indicated marks as much as possible (see Fig. 2) in order to meet the meter accuracy specifications CAPTION 1. Alignment marks 2. Conductor Fig.
HT100 4.2 DESCRIPTION OF FUNCTION KEYS /HOLD key 4.2.1 The multifunction /HOLD key allows the herefollowed operations: A simply pressure allows to switch on the instrument. After switch on, a quick autotest relative to the battery level charging is performed. For a percentage value <10% replace the batteries (see § 5.2) With instrument switched on, the key allows to activate/deactivate the HOLD feature in way to fix the result of the measured value at display. The “HOLD” symbol is shown.
HT100 4.3 PERFORMING MEASUREMENTS 4.3.1 DC/AC Voltage measurement CAUTION Maximum input is 1000VDC or 1000VACrms. Do not take any voltage measurement exceeding this limit in order not to risk electrical shock or damaging the instrument Do not use the instrument to measure voltages in circuits that could be damaged by instrument’s low input impedance (approx. 6k) Fig. 3: Taking AC and DC voltage measurement 1. Insert the red test lead plug into V- jack and the black test lead plug into COM jack 2.
HT100 4.3.2 Use of Voltsense feature CAUTION Maximum input is 1000VACrms. Do not take any voltage measurement exceeding this limit in order not to risk electrical shock or damaging the instrument Fig. 4: Taking AC voltage detection check 1. Switch on the instrument with the /HOLD key 2. Move the instrument close to point of the test (see Fig. 4) 3.
HT100 4.3.3 Resistance measurement CAUTION Before taking any in circuit resistance measurement, remove power from the circuit to be tested and discharge all the capacitors. Fig. 5: Taking resistance measurement 1. Insert the red test lead plug into V- jack and the black test lead plug into COM jack 2. Connect the two long ends of test leads to the desired circuit (see Fig. 5) then reading value of resistance will be displayed 3.
HT100 4.3.4 Continuity test and Diode test CAUTION Before taking any in circuit resistance measurement or diode test, remove power from the circuit to be tested and discharge all the capacitors. Fig. 6: Taking continuity test and diode test Continuity test 1. Insert the red test lead plug into V- jack and the black test lead plug into COM jack and perform continuity test on the object on test (see Fig. 6 – left side). The “ ” is shown at display.
HT100 4.3.5 AC Current measurement CAUTION Make sure that all the test leads are disconnected from the meter terminals for current measurement. Fig. 7: Taking AC current measurement 1. Put the conductor to be tested inside to the “open” clamp jaw (see Fig. 7) considering the alignment marks (see § 4.1.2). The current value is shown at display. 2. “OL” message is shown at display the current under test is over the maximum value that the instrument is able to measure 3.
HT100 5 MAINTENANCE 5.1 GENERAL INFORMATIONS 1. This is a precision instrument. Whether in use or in storage, please do not exceed the specification requirements to avoid possible damages or dangers. 2. Do not place this meter at high temperatures or humidity or expose it to direct sunlight. 3. Be sure to turn off the meter after use. If you expect not to use the tester for a long time, remove the battery in order to avoid leakages of battery liquid that would damage the internal parts. 5.
HT100 6 TECHNICAL SPECIFICATIONS 6.1 TECHNICAL CHARACTERISTICS Accuracy indicated as ± [% rdg + (num dgt x resolution)] at 23°C±5°C, < 80%HR AC TRMS Voltage (Autorange) Range 1.3V1000.0V Resolution Accuracy (*) Bandwidth Input impedance Overload protection 0.1V (0.9%rdg+3dgt) (50Hz 60Hz) (1.5%rdg+3dgt) (61Hz 500Hz) 50Hz500Hz >6k ca.420k (@1000V) 1000VDC/ACrms “Voltsence” function: measurement range 80V 1000V AC, 50 60Hz (*) Accuracy referred to sinusoidal waveform.
HT100 6.1.1 Reference guidelines Safety: Insulation: Pollution degree: Max height of use: Measurement category: IEC/EN61010-1, IEC/EN61010-2-032/-2-033 double insulation 2 2000m (6562ft) CAT IV 600V, CAT III 1000V to ground 6.1.2 General data Mechanical specifications Dimensions (L x W x H): Weight (including batteries): Max conductor size: 193 x 54 x 31mm (8 x 2 x 1in) 280g (10 ounces) 16mm (1in) Power supply Battery type: Low battery indication: Battery life: Auto Power OFF 2x1.
HT100 7 SERVICE 7.1 WARRANTY CONDITIONS This instrument is guaranteed against material or production defects, in accordance with our general sales conditions. During the warranty period the manufacturer reserves the right to decide either to repair or replace the product. Should you need for any reason to return back the instrument for repair or replacement take prior agreements with the local distributor from whom you bought it.
