Uni-T UT216A [4/18] Iv eiectrical symbols

Содержание

• Contents 2
• I overview 3
• Iilsafety operation rules 3
• Open case inspection 3
• Iv eiectrical symbols 4
• And figure 3 5
• See figure 1 5
• V external construction 5
• Vi lcd display see figure 2 5
• Vii key functions 6
• Viii technical indicator 7
• Capacitance hf 9
• Diode test h 9
• Lo frequency hz ut216b c only 9
• Temperature c ut216c only 9
• Ut216a b 9
• Ut216c 9
• Ix instructions for measurement 10
• Operation 10
• Figure 15 18
• X maintenance and upkeep see 18

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UNI KI UT216A B C OPERATING MANUAL phenomenon If any abnormal condition were found bare test pen damaged chassis insulation no display in LCD or the clamp meter is thought not be able to work normally please do not use it 2 It is forbidden to use the clamp ammeter prior to having rear cap and battery cover in place or otherwise there will be electric shocking 3 Keep finger within the scope of test pen finger protection position and do not contact the bare wire and connector unused input terminal or the circuit being measured when clamp ammeter is in operation 4 Function switches shall be set at the correct position prior to measurement It is forbidden to perform gear conversion in measurement to guard against damage to the meter 5 Refrain from applying between the clamp ammeter terminals and ground the voltage over DC1000V AC750V to guard against electric shocking and clamp meter damage 6 Be careful in measuring RMS voltage higher than DC or AC 30V since there will be electric shocking 7 Do not measure the voltage or current higher than the allowable input value Set the function range switch at the maximum range position if the scope of measured value couldn t be defined Prior to measurement of on line resistance and diode or the circuit on off measurement the power of circuits being measured shall be powered off and all capacitors shall be completely discharged to assure the measurement accuracy 3 UT216A B C OPERATING MANUAL 8 When LCD display shows the icon D it is required to replace the battery in time to ensure the measurement accuracy Take out battery when clamp meter is not in user for a long time 9 Refrain from changing the internal wiring in the clamp ammeter to guard against damage to the meter and danger 10 Refrain from storing or using the clamp ammeter in the explosive and flammable environment with high temperature high humidity and strong electromagnetic field 11 Clean the clamp meter case with soft cloth and neutral detergent To prevent causing corrosion to the case or damage to the instrument and danger it is forbidden to use abrasive material and solvent IV EIectrical symbols o 1 A Dual insulation Grounding Warning prompt AC Alternating current DC Direct current Buzzing on off H Diode HE capacitance AC or DC Alternating current or direct current A Danger High voltage Comply with EU standard S This symbol signify the product comply with both USA and Canada requirement 4