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.

Channel Bandwidth
Channel Bandwidth is the bandwidth over which power is measured. This is usually the bandwidth in which almost all of the power of a signal is contained.

Jitter
Jitter in technical terms is the deviation in or displacement of some aspect of the pulses in a high-frequency digital signal. Jitter is the time variation of a periodic signal in electronics and telecommunications, often in relation to a reference clock source. Jitter may be observed in characteristics such as the frequency of successive pulses, the signal amplitude, or phase of periodic signals. Jitter is a significant, and usually undesired, factor in the design of almost all communications links (e.g., USB, PCI-e, SATA, OC-48). In clock recovery applications it is called timing jitter.

Overshoot
Overshoot is the distortion that follows a major transition; the difference between the peak power point and the pulse-top amplitude computed as a percentage of the pulse-top amplitude.

Rise Time
Rise time refers to the time required for a signal to change from a specified low value to a specified high value, usually 10 and 90 percent of pulse-top amplitude (vertical display is linear power).

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