#61-492 1 7 490 Series 8 Industrial Grade Multimeter ~Hz MIN/MAX 9 10 PEAK 14 HOLD 13 12 11 2 3 4 Data Acquisition ~Hz MIN/MAX PEAK HOLD 5 2 Data Acquisition 2 1. LCD Display 2. Rotary Function Switch 3. COM Input Terminal 4. VΩHz Input Terminal 5. mA Input Terminal 6. A Input Terminal 7. Backlight Button 8. ~Hz Button 9. Peak H Button 10. Range Button 11. Blue Switch Button 12. Min/Max Button 13. REL∆ Button 14.
WARNING! 1. DO NOT UNDER ANY CIRCUMSTANCES EXCEED THESE RATINGS: - Voltage is not to exceed 1000 Volts. - Resistance, Capacitance, Logic and Continuity functions are not to be performed on circuits capable of delivering greater than 600 Volts. - Current measurements are not to be performed on circuits capable of delivering greater than 500 Volts 2. To avoid electrical shock hazards and/or damage to the meter: - Do not exceed the voltage ratings for the meter. Use caution when measuring voltage.
MIN MAX Button • The MIN/MAX button toggles between the stored minimum, and maximum values. • Pressing the button the first time displays the minimum value, the second time displays the maximum value, and pressing the third time displays the actual measurement with the MIN and MAX annunciators blinking. • Pressing hold while in this function stops the meter from updating the minimum and maximum values. • To escape this function, press the MIN/MAX button for 2 seconds.
AC Volts DC Volts Circuit Connection: ~Hz MIN/MAX Circuit Connection: ~Hz PEAK MIN/MAX HOLD Data Acquisition 2 Resolution Max Display 0.1mV 400.0 4V 1mV 4.000 40V 10mV 40.00 400V 750V HOLD Data Acquisition 2 Range 400mV PEAK 100mV 1V Accuracy +(1.5% +8) 40Hz ~ 60Hz +(1.0% +5) 40Hz ~ 500Hz +(0.5% +5) 50Hz ~ 60Hz +(1.0% +5) 40Hz ~ 1kHz 400.0 750 To Measure AC Voltage: 1. The Plug the Black test lead into the COM port and the Red test lead into the VΩHz port. 2.
AC Current DC Current Circuit Connection: Circuit Connection: ~Hz MIN/MAX ~Hz PEAK MIN/MAX HOLD PEAK HOLD Data Acquisition Data Acquisition 2 2 Range Resolution Max Display Accuracy Range Resolution Max Display Accuracy 40mA 400mA 10A 40mA 400mA 10A 1µA 0.1mA 10mA 40.00 400.0 10.00 Voltage Burden +(1.0% +5) 300mV max 3V max +(2.0% +5) 3V max 10µA 0.1mA 10mA 40.00 400.0 10.00 Voltage Burden +(0.4% +2) 300mV max +(0.5% +2) 3V max +(1.0% +3) 3V max To Measure AC Current: 1.
Frequency/RPM Resistance (Ohms) Circuit Connection: ~Hz Circuit Connection: ~Hz PEAK MIN/MAX MIN/MAX HOLD 2 2 Range Resolution 4kHz/40kRPM 1Hz/30RPM Max Display Sensitivity Accuracy 4.000/40.00 150mV Frequency: ≥2.0 Hz 0.01% +1 1.5V < 20 Hz RPM: 0.01% + 10 40kHz/400kRPM 10Hz/300RPM 40.00/400.0 400kHz/4MRPM 100Hz/3KRPM 400.0/4.000 1kHz/30KRPM 4.000/40.00 40MHz/400MRPM HOLD Data Acquisition Data Acquisition 4MHz/40MRPM PEAK 1V 400MHz/4000MRPM 100kHz/3MRPM 400.
Capacitance Diode Testing Circuit Connection: ~Hz MIN/MAX PEAK Circuit Connection: ~Hz HOLD MIN/MAX Data Acquisition PEAK HOLD Data Acquisition 2 Range 4nF 40nF 400nF 4µF 40µF 400µF 4mF 40mF Resolution 1pF 10pF 100pF 1nF 10nF 100nF 1µF 2 Max Display Accuracy 4.000 +(3.0% +10) 40.00 +(3.0% +5) 400.0 4.000 40.00 400.0 4.000 +(5.0% +20)* 10µF 40.00 * In these two ranges the reading may be rolling within specification To Measure Capacitance: 1.
Continuity Check PEAK Hold Measurements Circuit Connection: ~Hz PEAK ~Hz MIN/MAX PEAK HOLD HOLD MIN/MAX Data Acquisition Data Acquisition 2 2 To Verify Continuity: 1. A continuity test ensures that all circuit connections are intact. 2. Plug the Black test lead into the COM port and the Red test lead into the Ω port. 3. Set the rotary switch to the Ω position. 4. Press the blue button until is shown in the display. 5. Connect the test leads to the circuit to be measured.
Data Acquisition Function 1. Auto Power Off (APO) The APO sign on the LCD panel indicates the meter is working in the Auto Power Off mode. If the meter idles for more than 30 minutes, the meter automatically turns the power off. When this happens, the state (non-logic measurement) of the meter is saved, the meter can be turned back on by pushing any key switch, except back light switch, or changing the rotary switch.
- Range This packet indicates the full scale range of the meter. When the meter operates in continuity mode, diode mode or current (A) mode, this packet is always 0110000 since the full scale range in these modes are fixed. The following table lists the code for each range in each measurement mode. Code V mA Ω Frequency 0110000 400.0mV 40.00mA 400.0Ω RPM - Digit 3 - Digit 0 Digit 3 i the most significant digit on the LCD panel, and digit 0 is the least significant digit.
- Option 1 This packet contains information on special measurement modes. The format of this packet is shown below. The three non-constant fields is set to one when the meter operates in the corresponding special modes. 0 1 1 PMAX PMAX 0 VAHZ Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 - Option 2 This packet contains information on the operations mode of the meter. The format is shown below. The DC field indicates that the meter operates in DC measurements mode, either voltage or current.
Maintenance Warning To avoid electrical shock, remove test lead before opening the cover. Repairs or servicing not covered in this manual should only be performed by qualified personnel. Battery Installation or Replacement: The #61-492 is powered by 2 1.5 volt batteries. 1. Remove the test leads from the front terminals and turn the meter off. 2. Remove the screw from the battery cover and lift to remove. 3. Replace batteries. 4.
