Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Sperry instrument DM6850T
Summary of Contents for Sperry instrument DM6850T
- Page 1 Digital Multimeter Users Manual Read this manual thoroughly before use...
-
Page 3: Warranty
WARRANTY This instrument is warranted to be free from defects in material and workmanship for a period of one year. Any instrument found defective within one year from the delivery date and returned to the factory with transportation charges prepaid, will be repaired, adjusted, or replaced at no charge to the original purchaser. - Page 4 Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the meter serviced. Do not operate the meter around explosive gas, vapor, or dust. Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground.
- Page 5 Warning: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
- Page 6 To avoid electric shock, do not touch any conductor with hand or skin; and do not ground yourself while using this meter. When in Data Hold mode, the symbol " " is displayed. Caution must be used because hazardous voltage may be present. Do not use the meter in a manner not specified by the manufacturer or the safety features provided by the meter may be impaired.
- Page 7 Caution To avoid possible damage to the meter or to the equipment under test, follow these guidelines: Disconnect circuit power and discharge all capacitors thoroughly before testing resistance, diode, continuity, temperature or capacitance. Use the proper terminals and function for your measurements. Before measuring current, check the meter's fuse and turn off power to the circuit before connecting the meter to the circuit.
-
Page 8: Front Panel
INTRODUCTION This instrument is a compact 3 digits autorange true-rms digital multimeter designed to measure DC and AC voltage, DC and AC current, resistance, continuity, diode, capacitance, frequency, duty cycle and temperature. It features data hold, relative measurement, MIN MAX recording mode, backlight, non-contact ac voltage detection, Bluetooth communication, data recording, and etc. - Page 9 1. Display digits LCD, 4000 counts. 2. " SELECT " Button This " SELECT " button can be used to switch the meter between: DC voltage and AC voltage measurement functions. DC current and AC current measurement functions. Resistance, diode and continuity test functions. Frequency and duty cycle measurement functions.
- Page 10 4. " 10A " Terminal Input terminal for current measurements. 5. " COM " Terminal Common ( return ) terminal for voltage, current, resistance, diode, continuity, frequency, duty cycle, capacitance and temperature measurements. 6. " INPUT " Terminal Input terminal for voltage, resistance, diode, continuity, duty cycle, frequency, capacitance and temperature measurements.
-
Page 11: Understanding The Display
UNDERSTANDING THE DISPLAY 12 13 14 15 Figure 2 Explanations: ..Continuity test is selected..Diode test is selected..Autorange mode is selected..Relative mode is active..Data hold is enabled..Negative sign... - Page 12 ..AC ..DC ..Maximum reading is being displayed..Minimum reading is being displayed..Non-contact ac voltage detection is selected..The batteries are low and must be replaced immediately..Automatic power-off function is enabled..Bluetooth communication function is enabled..
- Page 13 17. Units: Unit of voltage mV, V mV: Millivolt ; V: Volt 1V = 10 Unit of current A: Ampere Unit of resistance , k , : Ohm; k : Kilohm; M : Megohm 1M = 10 k = 10 Unit of capacitance nF, µ...
-
Page 14: General Specification
GENERAL SPECIFICATION Display: 3 digits LCD Negative Polarity Indication: Negative sign " " shown on the display automatically Sampling Rate: About 2 to 3 times per second Low Battery Indication: " " shown on the display Memory: 2MB Max. Record Length: Continuous 36 hours; the meter records reading one time per second Battery: 1.5V battery, AAA or equivalent, 2 pieces Operating Environment: Temperature: 0°C to 40°C... - Page 15 Except where specified specially, accuracy is specified from 5 % to 100% of range. DC Voltage Overrange Range Resolution Accuracy Indication 400mV 0.1mV 0.001V ± (0.8% + 5) 0.01V 400V 0.1V ± (1.0% + 5) 600V Input Impedance: About 10M Overload Protection: 600V DC/AC [ 1 ] When the voltage being measured is more than 600V, the built-in buzzer will sound.
- Page 16 Frequency Range: 50Hz ~ 1kHz Reading: True rms Crest Factor: 3.0 Overload Protection: 600V DC/AC [ 1 ] When the voltage being measured is more than 600V, the built-in buzzer will sound. When the voltage is more than 610V, " OL " will be shown on the display. DC Current Overrange Range...
- Page 17 Frequency Range: 50Hz ~ 1kHz Reading: True rms Crest Factor: 3.0 Overload Protection: 12A/600V Fast fuse Max. Allowable Input Current: 10A ( For measurements > 2A: duration < 10 seconds, interval > 15 minutes ) [ 1 ] When the current being measured is more than 10A, the built-in buzzer will sound.
-
Page 18: Duty Cycle
Frequency Range Resolution Accuracy 9.999Hz 0.001Hz 99.99Hz 0.01Hz 999.9Hz 0.1Hz ± (1.0% + 5) 9.999kHz 0.001kHz 99.99kHz 0.01kHz 999.9kHz 0.1kHz 9.999MHz 0.001MHz ± (2.0% + 5) Input Voltage: 1V rms ~ 20V rms Overload Protection: 600V DC/AC Duty Cycle Range Resolution Accuracy 5% - 95%... - Page 19 Capacitance Range Resolution Accuracy 9.99nF 0.01nF ± (3.5% + 20) 99.99nF 0.01nF ± (2.5% + 5) 999.9nF 0.1nF ± (3.5% + 5) 9.999µF 0.001µF 99.99µF 0.01µF ± (5.0% + 5) 999.9µF 0.1µF Overload Protection: 600V DC/AC Temperature Range Resolution Accuracy -20°C ~ 0°C: ±...
-
Page 20: Diode And Continuity Test
3. The meter's operating temperature must be between 18°C and 28°C; otherwise measurement accuracy is not guaranteed. 4. When the measured temperature is lower than -55°C ( or -68°F ) the display will show " OL " and the negative sign " - ". When the measured temperature is higher than 1010°C ( or 1851°F ), the display will show "... -
Page 21: Data Hold Mode
OPERATING INSTRUCTION Data Hold Mode Press the " HOLD " button to enter Data Hold mode. The present reading is held on the display and the " " symbol appears on the display as an indication. To exit Data Hold mode, just press this button again. The " "... -
Page 22: Min Max Recording Mode
4. In subsequent measurements, the display shows the difference between the reference and the new measurement. 5. To exit Relative mode, just press the " RELATIVE " button again. The symbol " " disappears. Note: 1. The meter enters manual range mode and stays in the present range when you enter the Relative Mode. -
Page 23: Measuring Dc Or Ac Voltage
Press this " MAX/MIN " button to toggle between the minimum reading ( " " appears ) and the maximum reading ( " " appears ). 3. To exit MIN MAX recording mode and erase all the stored readings, press and hold down this " MAX/MIN " button for about 2 secs;... - Page 24 4. Connect the test leads across the source or circuit to be tested. 5. Read the reading on the display. For DC voltage measurements, the polarity of the red test lead connection will be indicated as well. Note: 1. Before the test leads are connected to the circuit to be tested, the display may show an unstable reading.
-
Page 25: Measuring Resistance
6. Turn on power to the circuit, then read the display. For DC current measurements, the polarity of the red test lead connection will be indicated as well. Measuring Resistance 1. Connect the black test lead to the " COM " jack and the red test lead to the "... -
Page 26: Continuity Test
Continuity Test 1. Connect the black test lead to the " COM " jack and the red test lead to the " INPUT " jack. 2. Set the rotary switch in position. Then press the "SELECT" button until the symbol " "... -
Page 27: Measuring Capacitance
Measuring Capacitance 1. Connect the black test lead to the " COM " jack and the red test lead to the " INPUT " jack. 2. Set the rotary switch in position. 3. Thoroughly discharge the capacitor to be tested, and then connect the test leads to the two leads of the capacitor. -
Page 28: Measuring Frequency
Measuring Frequency 1. Connect the black test lead to the " COM " jack and the red test lead to the " INPUT " jack. 2. Set the rotary switch in position. Then press the " SELECT" button until " Hz " appears on the display. 3. -
Page 29: Measuring Temperature
Note: 1. The voltage of the input signal should be between 4Vp-p and 10Vp-p. 2. After you remove the measured signal from the meter, its reading may still remain on the display. Pressing the " SELECT" button twice will zero the display. Measuring Temperature Note To avoid possible damage to the meter or other... - Page 30 3. Connect the negative " - " plug of the K type thermocouple to the " COM " jack and the positive " + " plug of the K type thermocouple to the " INPUT " jack. 4. Connect the sensing end of the thermocouple to the object to be tested.
- Page 31 Figure 4 Figure 5 Note: 1. If the magnitude of an ac voltage is not within the meter's detecting capacity or the distance between an ac voltage and the meter is not within the meter's detecting capacity, the meter can not detect this ac voltage.
-
Page 32: Automatic Power-Off
Automatic Power-Off The meter will turn off automatically and go into Sleep mode if you have not operated the meter for about 15 minutes. To arouse the meter from Sleep, just press a button or turn the rotary switch. To disable the automatic power-off function, turn the rotary switch from the "... -
Page 33: General Maintenance
MAINTENANCE Warning Except replacing fuse and battery, never attempt to repair or service the meter. Store the meter in a dry place when not in use. Don't store it in an environment with intense electromagnetic field. General Maintenance Periodically wipe the case with a damp cloth and a little mild detergent. Do not use abrasives or solvents. -
Page 34: Battery And Fuse Replacement
Battery and Fuse Replacement Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the batteries as soon as the low battery indicator ( ) appears. To prevent damage, electric shock or personal injury, use only replacement fuse specified. - Page 35 ACCESSORIES Manual: 1 piece Test Lead: 1 pair Alligator Clip: 1 pair Adapter: 1 piece ( for capacitance measurements ) PRESENT K Type Thermocouple: 1 piece NOTE 1. This manual is subject to change without notice. 2. Our company will not take the other responsibilities for any loss. 3.
- Page 36 Zhangzhou Eastern Intelligent Meter Co., Ltd Eastern Industrial Park, Jintang Road, Jinfeng Economic Development Zone, Xiangcheng District, Zhangzhou, Fujian, China DISPOSAL OF THIS ARTICLE Dear Customer, If you at some point intend to dispose of this article, then please keep in mind that many of its components consist of valuable materials, which can be recycled.
Need help?
Do you have a question about the DM6850T and is the answer not in the manual?
Questions and answers