EXTECH INSTRUMENTS EX470 REPAIR and EXTECH INSTRUMENTS EX470 CALIBRATION
 
Custom-Cal has a high success rate in the repair of the EXTECH INSTRUMENTS EX470. A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the EXTECH INSTRUMENTS EX470 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   EXTECH INSTRUMENTS EX470 (470)   Description / Specification:   Spec Sheet 
EXTECH INSTRUMENTS EX470 True RMS Autoranging Multimeter with IR Thermometer

The Extech EX470 True RMS Autoranging Multimeter plus IR Thermometer measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, and Continuity plus Thermocouple and Non-Contact IR Temperature.
Specifications.

DC Voltage Ranges: 400mV, 4V, 40V, 400V, 1000V.
DC Voltage Maximum Resolution: 0.1 mV.
DC Voltage Accuracy: ± (0.3% reading + 2 digits) @ 400 mV.

AC Voltage Ranges: 400mV, 4V, 40V, 400V, 750V.
AC Voltage Maximum Resolution: 0.1 mV.
AC Voltage Accuracy: ± (1.5% reading + 15 digits) @ 400 mV 50 to 400Hz.

DC Current Ranges: 400µA, 4000µA, 40mA, 400mA, 4 A, 20A.
DC Current Maximum Resolution: 0.1 µA.
DC Current Accuracy: ±(1.5% + 3d) @ 400µA, 4000µA, 40mA, 400mA.

AC Current Ranges: 400µA, 4000µA, 40mA, 400mA, 4A, 20A.
AC Current Maximum Resolution: 0.1 µA.
AC Current Accuracy: ±(1.8% reading + 8 digits) @ 400µA, 4000µA, 40mA, 400mA 50 to 400Hz.

Resistance Ranges: 400, 4k, 40k, 400k, 4M, 40Mohm.
Resistance Maximum Resolution: 0.1 ohm.
Resistance Accuracy: ± (0.8% reading + 4 digits) @ 400 ohm.

Capacitance Ranges: 40 nF, 400 nF, 4 µF, 40 µF, 100 µF.
Capacitance Maximum Resolution: 0.01 nF.
Capacitance Accuracy: ±(5.0% reading + 7 digits) @ 40 nF.

Temperature Type-K Ranges: -4 to 1382°F (-20 to 750°C ).
Temperature Maximum Resolution: 1°F/°C.
Temperature Accuracy: ±(3.0% reading + 3 digits) (probe accuracy not included).
Temperature (IR) Ranges: -58 to 518°F (-50 to 270°C ).
Temperature Maximum Resolution: 1°F/°C.
Temperature Accuracy: ±2.0% reading or ±2° C, ±4° F.

Frequency: 0.001Hz to 10MHz.
Frequency Accuracy: ±(1.5% reading + 5 digits) @ 5, 50 Hz range.

Duty Cycle: 0.1% to 99.9%.
Duty Cycle Maximum Resolution: 0.1%.
Duty Cycle Accuracy: ±(1.2% reading + 2 digits).

Diode Test: Test current of 0.3 mA typical, open circuit voltage 1.5V DC typical.

Continuity Check: Audible signal will sound if the resistance is less than 150 ohm (approx.), test current <0.7 mA.
Display: 4000 count backlit liquid crystal.



 



Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Averaging
Averaging is a mathematical process to reduce the variation in a measurement by summing the data points from multiple measurements and dividing by the number of points summed.

Fall Time
Fall time is the time required for the amplitude of a pulse to decrease (fall) from a specified value (usually 90 percent of the peak value exclusive of overshoot or undershoot) to another specified value (usually 10 percent of the maximum value exclusive of overshoot or undershoot).

Noise Density
Noise Density is the amount of noise within a defined bandwidth, usually normalized to 1 Hz.

Resolution Bandwidth (RBW)
Resolution Bandwidth (RBW) is the minimum bandwidth over which you can separate two signals and still see them.

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