HT instruments HT4012 - Manual (Page 26)

HT4012
EN - 1
CONTENTS:
1. SAFETY PRECAUTIONS AND PROCEDURES ............................................................. 2
1.1. Preliminary ............................................................................................................ 3
1.2. During Use ............................................................................................................ 3
1.3. After Use ............................................................................................................... 3
2. GENERAL DESCRIPTION .............................................................................................. 4
3. PREPARATION FOR USE .............................................................................................. 5
3.1. Initial ...................................................................................................................... 5
3.2. Supply Voltage ...................................................................................................... 5
3.3. Calibration ............................................................................................................. 5
3.4. Storage .................................................................................................................. 5
4. OPERATING INSTRUCTIONS ........................................................................................ 6
4.1. Instrument Description ........................................................................................... 6
4.1.1. Commands description .................................................................................................. 6
4.1.2. Alignment marks ............................................................................................................ 6
4.1.3. Use of rubber test leads holster .................................................................................... 7
4.2. Function key description ........................................................................................ 8
4.2.1. R-H key: range selection ............................................................................................... 8
4.2.2. D-H key: HOLD function ................................................................................................ 8
4.2.3. AUTO POWER OFF function ........................................................................................ 8
4.3. Description of Rotary Switch Function ................................................................... 9
4.3.1. AC Voltage measurement ............................................................................................. 9
4.3.2. DC Voltage measurement ........................................................................................... 10
4.3.3. AC Current measurement ........................................................................................... 11
4.3.4. Resistance measurement ............................................................................................ 12
4.3.5. Continuity Test ............................................................................................................ 13
4.3.6. Diode test .................................................................................................................... 14
5. PREVENTIVE MAINTENANCE ..................................................................................... 15
5.1. General information ............................................................................................. 15
5.2. Battery replacement ............................................................................................ 15
5.3. Cleaning .............................................................................................................. 15
5.4. End of life ............................................................................................................ 15
6. TECHNICAL SPECIFICATIONS ................................................................................... 16
6.1. Characteristics ..................................................................................................... 16
6.1.1. Safety .......................................................................................................................... 17
6.1.2. General data ................................................................................................................ 17
6.2. Environmental conditions .................................................................................... 17
6.2.1. Climatic conditions ...................................................................................................... 17
6.2.2. EMC and LVD ............................................................................................................. 17
6.3. Accessories ......................................................................................................... 17
6.3.1. Standard accessories .................................................................................................. 17
6.3.2. Optional accessories ................................................................................................... 17
7. SERVICE ....................................................................................................................... 18
7.1. Warranty conditions ............................................................................................. 18
7.2. Service ................................................................................................................ 18