Related Manuals for ATP Instrumentation DT-931
Summary of Contents for ATP Instrumentation DT-931
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Page 1: Operating Instruction
OPERATING INSTRUCTION AUTORANGING MULTIMETER Ω every 15 min. -
Page 2: Safety Information
SAFETY INFORMATION The following safety information must be observed to insure maximum personal safety during the operation at this meter: Do not use the meter if the meter or test leads look damaged, or if you suspect that the meter is not operating properly. ... -
Page 3: Safety Symbols
Never apply voltage or current to the meter that exceeds the specified maximum: SAFETY SYMBOLS This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter. This WARNING symbol indicates a potentially WARNING hazardous situation, which if not avoided, could... -
Page 4: Controls And Jacks
hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these terminals are energized. CONTROLS AND JACKS Ω every 15 min. 6000 count Liquid Crystal Display with symbolic signs... -
Page 5: Symbols And Annunciators
Function switch 10A (positive) input jack for 10A DC or AC measurements COM (negative) input jack Positive input jack HOLD & Backlight pushbutton Max/Min pushbutton Range/ .Diode pushbutton Hz/Duty pushbutton SYMBOLS AND ANNUNCIATORS Continuity Low Battery Diode HOLD Data Hold AUTO AutoRanging Alternating Current or Voltage... - Page 6 Overvoltage category: CATIII 600V, CATII 1000V. Display: 6000 counts LCD display with function indication. Polarity: Automatic, (-) negative polarity indication. Overrange: “OL” mark indication. Low battery indication: The “BAT” is displayed when the battery voltage drops below the operating level. Measurement rate: 2 times per second, nominal.
- Page 7 6.000V +1.2% of rdg + 2 dgts 60.00V 10mV 600.0V 100mV 1000V +1.5% of rdg + 2 dgts Input Impedance: 7.8M. Maximum Input: 1000V dc or 1000V ac rms. AC Voltage Range Resolution Accuracy 6.000V +1.2% of rdg + 3 dgts 60.00V 10mV +1.5% of rdg + 3 dgts...
- Page 8 Maximum Input: 10A dc or ac rms on 10A AC range. Resistance Range Resolution Accuracy +1.2% of rdg + 4 dgts 600.0 0.1 +1.0% of rdg + 2 dgts 6.000k 1 +1.2% of rdg + 2 dgts 60.00k 10 600.0k 100...
- Page 9 999.9kHz 100Hz 10MHz 1kHz +1.5% of rdg + 4 dgts Sensitivity: >0.5V RMS while ≤1MHz ; Sensitivity: >3V RMS while >1MHz ; Maximum Input: 600V dc or 600V ac rms. Duty Cycle Range Resolution Accuracy 0.1%~99.9% 0.1% +1.2% of rdg + 2 dgts Pulse width: >100us, <100ms;...
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Page 10: Operation
Audible continuity Audible threshold: Less than 100 Test current: <0.3mA Overload protection: 600V dc or ac rms. OPERATION WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. ALWAYS turn the function switch to the OFF position when the meter is not in use. - Page 11 Autoranging. This automatically selects the best range for the measurements being made and is generally the best mode for most measurements. For measurement situations requiring that a range be manually selected, perform the following: 1. Press the RANGE key. The “AUTO” display indicator will turn off or select diode /beeper, AC/DC Clamp 2.
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Page 12: Display Backlight
2. Press the MAX/MIN key again and the display icon "MIN" will appear. The meter will display and hold the minimum reading and will update only when a new “min” occurs. 3. To exit MAX/MIN mode press and hold the MAX/MIN key for 2 seconds DISPLAY BACKLIGHT Press and hold the HOLD key for >1 second to turn on or off the... -
Page 13: Ac Voltage Measurements
1. Set the function switch to the V DC position . 2. Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the positive (V) jack. 3. Touch the test probe tips to the circuit under test. Be sure to observe the correct polarity (red lead to positive, black lead to negative). -
Page 14: Dc Current Measurements
jack and the red test lead banana plug into the positive (V) jack. 3. Touch the test probe tips to the circuit under test. 4. Read the voltage in the display. The display will indicate the proper decimal point, value and symbol (AC, V, etc.). DC CURRENT MEASUREMENTS CAUTION: Do not make current measurements on the 10A scale for longer than 30 seconds. - Page 15 any circuit whose voltage exceeds 250V AC. CAUTION: Do not make current measurements on the 10A scale for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1. Insert the black test lead banana plug into the negative (COM) jack. 2.
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Page 16: Resistance Measurements
RESISTANCE MEASUREMENTS WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1. Set the function switch to the position. 2. -
Page 17: Diode Test
will sound. The display will also show the actual resistance. DIODE TEST WARNING: To avoid electric shock, do not test any diode that has voltage on it. 1. Set the function switch to position. 2. Press the button until the symbol appears in the display. -
Page 18: Frequency Measurement
FREQUENCY MEASUREMENT 1. Set the function switch to the FREQ position. 2. Insert the black test lead banana plug into the negative (-) jack (COM) and the red test lead banana plug into the positive (+) jack (F). 3. Touch the test probe tips to the circuit under test. 4. -
Page 19: Temperature Measurements
TEMPERATURE MEASUREMENTS WARNING: To avoid electric shock, disconnect both test probes from any source of voltage before making a temperature measurement. 1. If you wish to measure temperature in F, set the function switch to the F range. If you wish to measure temperature in C, set the function switch to the C range. -
Page 20: Battery Installation
When the batteries become exhausted or drop below the operating voltage, “BAT” will appear in the right-hand side of the LCD display. The battery should be replaced. Follow instructions for installing battery. See the Battery Installation section of this manual. 3. -
Page 21: Replacing The Fuses
REPLACING THE FUSES WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the fuse door. 1. Disconnect the test leads from the meter and any item under test. 2. Open the fuse door by loosening the screw on the door using a Phillips head screwdriver.
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