Copyright HT ITALIA 2012 Release EN 1.01 - 14/05/2012 ENGLISH User manual
HT401 EN - 9 4.4. OPERATING INSTRUCTIONS 4.4.1. DC Voltage measurement CAUTION The maximum input DC voltage is 1000 V. Do not measure volta
HT401 EN - 10 4.4.2. AC Voltage measurement and Frequency CAUTION The maximum input AC voltage is 1000 V. Do not measure voltages exceeding
HT401 EN - 11 4.4.3. AC Voltage measurement with low input impedance CAUTION The maximum input AC voltage is 1000 V. Do not measure voltage
HT401 EN - 12 4.4.4. DC Current measurement CAUTION The maximum input DC current is 10A. Do not measure currents exceeding the limits given
HT401 EN - 13 4.4.5. AC Current measurement and Frequency CAUTION The maximum input AC current is 10A. Do not measure currents exceeding th
HT401 EN - 14 4.4.6. Resistance measurement CAUTION Before attempting any resistance measurement, cut off power supply from the circuit to b
HT401 EN - 15 4.4.7. Diode and Continuity test CAUTION Before attempting any resistance measurement, cut off power supply from the circuit
HT401 EN - 16 4.4.8. Capacitance measurement CAUTION Before carrying out capacitance measurements on circuits or capacitors, cut off power s
HT401 EN - 17 4.4.9. Temperature measurement Fig. 10: Temperature measurement 1. Select the position 2. Press the MODE key to select meas
HT401 EN - 18 5. MAINTENANCE CAUTION Only expert and trained technicians should perform maintenance operations. Before carrying out this oper
HT401 EN - 1 Table of contents: 1. PRECAUTIONS AND SAFETY MEASURES ... 21.1. Preli
HT401 EN - 19 6. TECHNICAL SPECIFICATIONS 6.1. TECHNICAL CHARACTERISTICS Accuracy is indicated as [% rdg + (dgt number) * resolution] at 23°C ± 5
HT401 EN - 20 DC Current Range Resolution Accuracy Measuring time Protection against overcharge 60.00mA 0.01mA (0.8rdg+3dgt) 3min (A) 10min (m
HT401 EN - 21 Continuity test Range Resolution Accuracy Protection against overcharge 600 0.1 (0.8rdg+5dgt) 1000VDC/ACrms Buzzer activated
HT401 EN - 22 6.2. ENVIRONMENT 6.2.1. Environmental conditions for use Reference temperature: 23 ± 5°C (73 ± 41°F) Operating temperature/humidi
HT401 EN - 23 7. SERVICE 7.1. WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect, in compliance with t
HT401 EN - 2 1. PRECAUTIONS AND SAFETY MEASURES The instrument has been designed in compliance with Directive IEC/EN 61010-1 relevant to electron
HT401 EN - 3 1.2. DURING USE Please carefully read the following recommendations and instructions: CAUTION Failure to comply with the Caution
HT401 EN - 4 2. GENERAL DESCRIPTION The instrument HT401 carries out the following measurements: DC and AC TRMS voltage DC and AC TRMS cur
HT401 EN - 5 3. PREPARATION FOR USE 3.1. INITIAL CHECKS Before shipping, the instrument has been checked from an electric as well as mechanical
HT401 EN - 6 4. OPERATING INSTRUCTIONS 4.1. INSTRUMENT DESCRIPTION 4.1.1. Description of the controls CAPTION: 1. LCD display 2. Function ke
HT401 EN - 7 4.2. DESCRIPTION OF FUNCTION KEYS The following § describes the functions of the different keys. When pressing a key, the display s
HT401 EN - 8 4.3. INTERNAL MODES OF INSTRUMENT 4.3.1. PEAK/HOLD mode When operating in PEAK/HOLD function, the instrument records the Max or Mi
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