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Table of Contents
Related Manuals for ST MS8221A
Summary of Contents for ST MS8221A
- Page 1 Manual Range Multimeter Middle Size...
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Page 2: Table Of Contents
CONTENTS 1. SAFETY INFORMATION…………………………….1 2. DESCRIPTION………………………………………..4 3. SPECIFICATIONS…………………………………….6 4. OPERATING INSTRUCTION………………………..9 4.1 Voltage measurement…………………….……..10 4.2 Current measurement……………………………10 4.3 Resistance measurement……………………..12 4.4 Diode test………………………………………….12 4.5 Continuity test…………………………………….13 4.6 Temperature measurement……………………...13 4.7 Battery test………………………………………..14 4.8 Transistor measurement…………………………14 5. MAINTENANCE………………………….…………..15... -
Page 3: Safety Information
1. SAFETY INFORMATION WARNING To ensure safe operation, and in order to exploit to the full the functionality of the meter, please follow the directions in this section carefully. This multimeter has been designed according to IEC61010 concerning electronic measuring instruments with an overvoltage category CAT III 600V and pollution Follow all safety and operating instructions to ensure that the meter is used safely and is kept in good... - Page 4 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 guaranteed only if used with test leads supplied. If necessary, they must be replaced with the same model or same electric ratings.
- Page 5 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 store or use meter in areas exposed to direct sunlight, high temperature, humidity or condensation.
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Page 6: Description
battery. - For continue protection against fire, replace fuse only with the specified voltage and current ratings: F 250mA/600V (quick acting),10A/600V (quick acting). - Do not use abrasives or so5lvents on the meter, use a damp cloth and mild detergent only. - Always set the power switch to the OFF position when the meter is not in use. - Page 7 4. Terminals - 5 -...
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Page 8: Specifications
3. SPECIFICATIONS 3.1 GENERAL SPECIFICATIONS - Environment conditions: 600V CAT.III Pollution degree: 2. Altitude < 2000 m. - Operating temperature: 0~40 C (32℉ to 104℉), (<80% RH, non-condensing) - Storage temperature: -10~50 C(14℉ to 122℉), (<70% RH, battery removed) - Temperature Coefficient: 0.1(specified accuracy) / C/℉... - Page 9 3.2 Measurement specifications Accuracy: ±(% of reading + number of digits) at 18°C to 28°C (64°F to 82°F) with relative humidity to 80%. (Accuracy is specified for a period one year after calibration) - 6 - 3.2.1 DC VOLTAGE Accuracy Range Resolution A/B/D model...
- Page 10 2V -600V ranges: 600VDC or 600V rms - Frequency range: A/B/D model: 40Hz-1000Hz C model: 40Hz-400Hz - Response: Average, calibrated in rms of sine wave. 3.2.3 DC CURRENT - 7 - Accuracy Range Resolution D model C model A/B model 200uA 0.1uA ±0.8%±2...
- Page 11 A/B/D model C model 200Ω 0.1Ω ±0.8%±3 ±1.0%±3 2KΩ 1Ω 20KΩ 10Ω ±0.8%±2 ±1.0%±2 200KΩ 100Ω ±1.0%±2 ±0.8%±2 2MΩ 1kΩ 20MΩ 10kΩ ±1.0%±2 Overload protection: 250V DC or 250V AC rms. 3.2.6 Diode test Display: read approximate forward voltage of diode Forward DC Current: approx.
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Page 12: Operating Instruction
±2.0%±3 400℃to1000℃/ 752℉to1832℉ - Overload Protection: 250V DC or rms AC 3.2.10 Battery Test (Only D model) Range Accuracy Discharge current 1.5V 100mA ±0.8%±2 Overload protection: 1.5V: F250mA/600V fuse 9V: 250Vdc or 250Vac rms 4. OPERATING INSTRUCTION 4.1 Voltage measurement - Set rotary switch to the desired V or V~ range. -
Page 13: Current Measurement
To avoid electrical shock and/or damage to the instrument, do not attempt to take any voltage measurement that might exceeds 600Vdc or 600Vac rms. Do not apply more than 600Vdc or 600Vac rms between the common terminal and the earth ground. 4.2 Current measurement - Set the rotary switch to the desired A or A~ range. -
Page 14: Resistance Measurement
overrange situation and the higher range has to be selected. - When the value scale to be measured is unknown beforehand, set the range selector at the highest position. - “ ” means the socket of INPUT maximum current is 200mA, over current will destroy the fuse. -
Page 15: Continuity Test
- Set the rotary switch to range. - Connect the black and red test leads to the COM and terminals respectively. - Connect the red test lead to the anode, black test lead to the cathode of the diode under testing. - The meter will show the approx. -
Page 16: Battery Test
- The LCD display will show the current environment temperature. - When measuring the temperature with thermocouple, ‘K’ type probe for this meter can be used. Insert the black plug to the COM jack and the red one to the TEMP jack, touch the end of the temperature sensor to the area or surface of the object for measurement. -
Page 17: Maintenance
or PNP type and locate the Emitter, Base and Collector leads. Insert leads of the transistor into proper holes of the hFE socket. The meter will show the approx. hFE value at test condition of base current 10μA and Vce 2.8V. 5. - Page 18 - Use a screwdriver to unscrew the 5 screws secured on the back casing. - Separate the back casing from the top casing. - Replace the fuse only with specified ratings: F 250mA/600V F 10A/600V - Replace the back casing and secure by the 5 screws. Before replacing the fuse, disconnect test leads from any circuit under test.
- Page 19 ACCESSORIES ⑴ Test Leads one set ⑵ Battery:9V, 6F22 three pieces ⑶ Instruction Manual one piece ⑷ Thermocouple (K type) (Only C model) one piece CAUTION Using this appliance in an environment with a strong radiated radio-frequency electromagnetic field (approx. 3V/m), may influence its measuring accuracy.
- Page 20 Sifam Tinsley Instrumentation Ltd 1 Warner Drive, Springwood Industrial Estate, Braintree, Essex CM7 2YW Contact No. : +44 (0) 1376 335271 Email: sales@sifamtinsley.com www.sifamtinsley.co.uk...
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