Mastech MS8221 Manual do Utilizador

CONTENTS 1. SAFETY INFORMATION…………………………….1 2. DESCRIPTION………………………………………..4 3. SPECIFICATIONS…………………………………….6 4. OPERATING INSTRUCTION………………………..9

or 2µA (MS8221B/MS8230B). VCE: approx. 2.8V 3.2.6 Resistance Accuracy Range Resolution MS8221A/8221D MS8221B/8230B 200Ω 0.1Ω ±0.8%±3 ±

400℃ to 1000℃ ±2.0%±3 - Overload Protection: 250V DC or rms AC 3.2.10 Battery Test (Only MS8221D) Range Accuracy Discharge current 1.5V 100mA 9

4.2 Current measurement - Set the rotary switch to the desired A or A~ range. - Connect the black test lead to the COM terminal and the red test leads

maximum current is 10A, no fuse protection. 4.3 Resistance measurement - Connect the black test lead to the COM jack and the red test lead to the Ω j

diode. If the lead connection is reversed, only figure "1" displayed. To avoid electrical shock and/or damage to the instrument, disconnect

to the area or surface of the object for measurement. - You can get reading from LCD. To avoid electrical shock, do not connect the thermocouples wi

5. MAINTENANCE 5.1 General Maintenance Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or mo

Before replacing the fuse, disconnect test leads from any circuit under test. To prevent damage or injury, replace the fuse only with specified ratin

CAUTION Using this appliance in an environment with a strong radiated radio-frequency electromagnetic field (approx. 3V/m), may inf

1. SAFETY INFORMATION WARNING To ensure safe operation, and in order to exploit to the full the functionality of the meter, please follow the directi

verify that the insulation on test leads is not damaged and/or the leads wire is not exposed. - Full compliance with safety standards can be guarantee

can not be used any more and it has to be checked out. - Never use the meter unless the rear case is in place and fastened fully. - Please do not stor

battery. - For continue protection against fire, replace fuse only with the specified voltage and current ratings: F 200mA/250V (quick acting). - Do n

4. hFE socket (except MS8221D) 5. Terminals - 5 -

3. SPECIFICATIONS 3.1 GENERAL SPECIFICATIONS - Environment conditions: 600V CAT.III and 1000V CAT.Ⅱ Pollution degree: 2. Altitude < 2000 m. - Oper

(Accuracy is specified for a period one year after calibration) 3.2.1 DC VOLTAGE Accuracy Range Resolution MS8221A/8221D MS8221B/8230B 0.2V 0.1mV ±

3.2.3 DC CURRENT Accuracy Range Resolution MS8221A/8221D MS8221B/8230B 200uA 0.1uA 2mA 1 uA ±1.0%±2 20mA 10 uA ±0.8%±1 200mA 100uA ±1.2%±1 ±1.5%±2