Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for General DMM333
Summary of Contents for General DMM333
- Page 1 DMM333 USER’S MANUAL DIGITAL POCKET MULTIMETER - AUTO RANGING...
-
Page 2: Table Of Contents
TABLE OF CONTENTS TITLE PAGE INSTRUMENT......3 OVERVIEW FEATURES .......4 SPECIFICATIONS....5-6 SAFETY COMPLIANCE ..7 SAFETY ........8-15 INFORMATION ELECTRICAL ......16 SYMBOLS OPERATING......17-25 INSTRUCTIONS MAINTENANCE ......26... -
Page 3: Instrument
INSTRUMENT OVERVIEW 1. LCD Display 2. Function Select Button 3. Rotary Switch 4. DATA/MAX HOLD Button 5. Test Leads DMM333... -
Page 4: Features
FEATURES • Data Hold, Max Hold Ranging • Easy to use • Continuity Beeper, Diode Test • Auto Power Off • Low Battery Indicator • Fast Sampling Rate • Built-In-Test Leads... -
Page 5: General Specifications
GENERAL SPECIFICATIONS FUNCTIONS DMM333 Auto Ranging auto Display Count 2000 DC Volts Auto 200mV/2/20/ 200/500VDC DC Volts ±(0.5%+5dgt) Accuracy AC Volt Auto 2/20/200/500VAC AC Volts ±(0.8%+5dgt) Accuracy Resistance Auto 200/2k/20k/ (Ohms) 200k/2M/20MΩ Resistance ±(0.8%+5dgt)<1MΩ, Accuracy ±(2%+5dgt)≥1MΩ • Diode Test •... - Page 6 GENERAL SPECIFICATIONS FUNCTIONS DMM333 Input Ω Impedance (DCV setting) • Auto Off • Data Hold • Max Data Hold 250mA 250V Fuse Fast Fuse 2 “LR44” 1.5V Battery Type button cell batteries Operating 32° to 140°F Temperature (0°to 40°C) ≤75%RH Storage 14°...
-
Page 7: Safety Compliance
SAFETY COMPLIANCE Note: Accuracy is given for one year at 73.4°±5.4°F (23°±3°C) RH<75% This unit was designed to be safe at least under the following conditions: • Indoor use • Altitude: up to 2000m • Pollution degree: 2 • Ingress protection degree: IP20 •... -
Page 8: Safety Information
• Read “Safety Information” before using this meter. • This multimeter is battery operated, with a digital display. • The Meter complies with IEC61010-1，2001 CATII 500V and CATIII 300V. Refer to “General Specifications” for more information. -
Page 9: Safety
SAFETY INFORMATION (continued) • In this manual, a Warning identifies conditions and actions that pose hazards to the user. • A Caution identifies conditions and actions that may damage the Meter or the equipment under test. International symbols used on the Meter and in this manual are explained in Table 1 on page 16. - Page 10 To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment under test, comply with the following practices: 1. Do not use the Meter in a manner not specified by this manual or the safety features of the Meter may be impaired.
- Page 11 metal. Check the test leads for continuity. Replace damaged test leads before using the Meter. Only test leads meeting CE, CAT II 500V and CAT III 300V 1A can be used in this multimeter. Replacing test leads should be referred to qualified service personnel only.
- Page 12 Do not measure voltages above 500 V in Category II, or 300 V in Category III installations. Do not measure voltage when the function/range switch is set on the resistance (ohms) or the current (µA/mA) settings. Never measure current when the meter is set on the resistance range.
- Page 13 9. Use the proper terminals, function, and range for all measurements. Do not operate the Meter around explosive gas, vapor, or dust. When using the probes, keep the fingers behind the finger guards. Do not touch the metal probes of the test leads when making a measurement.
- Page 14 capacitors before testing resistance, continuity, diodes, or capacitance. 14.For all DC functions, to avoid the risk of shock due to possible improper reading, verify the presence of any AC voltages by first using the AC function. Then select a DC voltage range equal to or greater than the AC range.
- Page 15 the Meter case, to power the Meter. 18.Replace the battery as soon as the battery indicator “ ” appears. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury. Don’t replace batteries with the wrong type.
-
Page 16: Information
TABLE 1. ELECTRICAL SYMBOLS SYMBOL DESCRIPTION AC (Alternating Current) DC (Direct Current) Caution, risk of electric shock Hazardous voltage Battery (Low battery when shown on the display). Diode AC or DC Fuse Double Insulated Risk of danger. Important Information. Refer to the manual. Earth ground Continuity/Buzzer Complies with EU... -
Page 17: Operating Instructions
OPERATING INSTRUCTIONS • Data Hold and Max Hold Press the “H” (Hold) button to hold present reading, and press the “M” (Max Hold) button to hold max reading. • DC Voltage Measurement Do not measure voltage higher than 500V. If the voltage is over 1000 VDC, the beeper will sound for warning continuously, designating an over-range... - Page 18 3.Read the measured voltage on the display. If the test leads are — reversed, the “ ” indicator will appear on the display. red test lead black test lead red test lead black test lead...
-
Page 19: Ac Voltage Measurement
• AC Voltage Measurement Do not measure voltage higher than 500V. It may make damage to internal circuit. If the voltage is over 750 VAC, the beeper will sound for warning continuously, designating an over-range measurement. 1.Set the function/range switch to the appropriate AC voltage range. - Page 20 • Resistance Measurement (Ω) To avoid electrical shock or damage to the meter when measuring resistance or continuity in a circuit, make sure the power to the circuit is turned off and all capacitors are discharged. 1.Turn the rotary switch to the appropriate resistance (ohms) range.
-
Page 21: Diode Check
“OL” will be indicated on LCD display. red test lead black test lead • Diode Check 1.Turn the rotary switch to the diode/continuity position. Diode check is the default setting, switch functions by pushing the YELLOW button. 2.Connect the red probe to the anode side and the black probe to the cathode side of the diode being tested. - Page 22 4.If the polarity of the test leads is reversed with diode polarity, the display reading shows “OL”. This can be used to distinguish the anode and cathode sides of a diode. 5.For silicon diode, forward bias voltage should be 0.5∼0.8V, for germanium diode, forward bias voltage should be 0.2∼0.3V.
-
Page 23: Continuity Measurement
• Continuity Measurement 1.Turn the rotary switch to the diode/continuity position. Diode check is the default setting, switch functions by pushing the YELLOW button. 2.If the resistance is under 50 Ω, the beeper will sound continuously, designating a short circuit. If the meter reads “OL”, the circuit is open. - Page 24 • DC /AC Current Measurement (µA/mA) 1.Turn the rotary switch to the current range, if the tested current range is unknown, set it to mA setting first. 2.Toggle between AC or DC current measurement by pressing the YELLOW button. 3.Break the circuit path to be measured.
- Page 25 continuously, designating an over-range measurement. red test lead black test lead • Turn Off Please set the function switch to the OFF position after using. The Meter enters the “Sleep mode” and blanks the display if the Meter is not used and the input is inactive for 15 minutes.
-
Page 26: Maintenance
MAINTENANCE If the Meter fails, check the batteries and fuses first, review this manual to make sure that you are operating the Meter correctly. Disconnect test leads before opening the case or the battery door. To avoid false readings, which could lead to possible electric shock or personal injury, replace the batteries as soon as the... - Page 27 NOTES ........................................................................................................................................................................................................................................................................
- Page 28 80 White Street New York, NY 10013-3567 PHONE (212) 431-6100 FAX (212) 431-6499 TOLL FREE (800) 697-8665 e-mail: sales@generaltools.com www.generaltools.com DMM333 User’s Manual Specifications subject to change without notice ©2009 GENERAL TOOLS & INSTRUMENTS ™ NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS. MAN#DMM333 6/09...