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MS8250B Dataheets PDF



Part Number MS8250B
Manufacturers Mastech
Logo Mastech
Description Digital Multimeter Manual
Datasheet MS8250B DatasheetMS8250B Datasheet (PDF)

MS8250A/B Digital Multimeter Operation Manual MS8250A/B Digital Multimeter Safety information 1. Safety information Warning Please particularly note that inappropriate use may cause shock or damage to the meter. When using, comply with common safety procedures and completely follow the safety measures stated in the operation manual. In order to make full use of the meter’s functions and ensure safety operation, please carefully read and follow the use methods in the operation manual. The meter .

  MS8250B   MS8250B



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MS8250A/B Digital Multimeter Operation Manual MS8250A/B Digital Multimeter Safety information 1. Safety information Warning Please particularly note that inappropriate use may cause shock or damage to the meter. When using, comply with common safety procedures and completely follow the safety measures stated in the operation manual. In order to make full use of the meter’s functions and ensure safety operation, please carefully read and follow the use methods in the operation manual. The meter meets GB/T 13978-92 digital multimeter general technology conditions, GB4793.1-1995 (IEC 61010-1, IEC 61010-2-032) electronic measurement instrument safety requirements with secondary pollution and over-voltage standard of CAT Ⅳ 600V. Please follow the safety operation guidelines to ensure the safe use of meter. The meter will provide satisfactory service to you if you use and protect it appropriately. 1.1 Preparation 1.1.1 When using the meter, the user should comply with standard safety rules: - General shock protection - Prevent misusing the meter 1.1.2 Please check for damage that may have occurred during transportation after receiving the meter. 1.1.3 If it should be stored and shipped under hard conditions, please confirm if the meter is damaged. 1.1.4 Probe should be in good condition. Before use, please check whether the probe insulation is damaged and whether metal wire is bare (not properly insulated). 1.1.5 Use the probe table provided with the meter to ensure safety. If necessary, it should be replaced with another identical probe or one with the same capacity.- 1 - MS8250A/B Digital Multimeter Safety information 1.2 Usage 1.2.1 When using, select the correct function and measuring range. 1.2.2 Don't exceed the indicated maximum of each measuring range. 1.2.3 When measuring circuits with the meter connected, do not touch the probe tip (metal part). 1.2.4 When measuring, if the voltage to be measured is more than 60 V DC or 30 V AC (RMS), always keep your fingers always behind finger protection device. 1.2.5 Don’t measure voltage greater then 600 V. 1.2.6 For manual measuring range, when the value to be measured is unknown, select, the highest measuring range. 1.2.7 Before rotating conversion switch to change measuring function, remove probe from the circuit to be measured. 1.2.8 Don't measure resistors, capacitors, diodes and circuit connections with power. 1.2.9 During tests of current, resistors, capacitors, diodes and circuit connections, avoid connecting the meter with voltage sources. 1.2.10 Do not measure capacitance before capacitor is discharged completely. 1.2.11 Do not use the meter in explosive gas, vapor or dusty environments. 1.2.12 If you find any abnormal phenomena or failure on the meter, stop using it immediately. 1.2.13 Do not use the meter unless the bottom case and the battery cover are completely fastened in their original places. 1.2.14 Don't store or use the meter in direct sunlight or high temperature and high humidity conditions. 1.3 Mark Note (Important safety information. Refer to the operation manual) Can be used for dangerous electric conductor. Double insulation protection (class II) CAT Ⅳ According to pulse voltage tolerance protection level provided by IEC 61010-1 standard overvoltage (installation) level III and pollution degree 2. -2- MS8250A/B Digital Multimeter Safety information The meter complies with EU standard Grounding 1.4 Maintenance 1.4.1 Don't try to open the meter bottom case to adjust or repair. Such operations only can be operated by technicians who fully understand the meter and electrical shock hazard. 1.4.2 Before opening the meter bottom case or battery cover, it should remove probe from the circuit to be measured. 1.4.3 To avoid incorrect readings and possibly causing electric shock, when " " appears on the meter display, replace the battery immediately. 1.4.4 Clean the meter with damp cloth and mild detergent. Do not use abrasives or solvents. 1.4.5 When the meter is not used, switch the measuring range to OFF position. 1.4.6 If the meter is not used for long time, remove the battery to prevent damage to the meter. -3- MS8250A/B Digital Multimeter Description 2. Description - The meter is a portable, professional measuring instrument with LCD display and back light for easy reading by users. Measuring range switch is operated by one hand for ease of operation. The meter has overload protection and low battery indicator. It is an ideal multifunction meter no matter for professionals, factories, schools, fans or family use. - The meter is used to measure AC current, DC current, voltage, DC voltage, frequency, duty ratio, resistance, capacitance measurement and circuit connection, diode test. - The meter has automatic measuring range and manual measuring range. - The meter's AC current and AC voltage are measured with True RMS. The meter has: - reading hold function. - relative measuring function. - max. measuring function. - min. measuring fun.


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