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Summary of Contents for Amprobe 38XR-A
- Page 1 38XR-A Professional Digital Multimeter True-RMS with Optical PC Interface Users Manual Mode d'emploi Bedienungshandbuch Manuale d'Uso Manual de uso For detailed specifications and ordering info go to www.TestEquipmentDepot.com...
- Page 2 RS232 38XR-A MADE IN TAIWAN PATENTS PENDING www.amprobe.com 38XR-A...
- Page 3 38XR-A Professional Digital Multimeter Users Manual • Mode d’emploi • Bedienungshandbuch • Manuale d’Uso • Manual de uso PN 2728963 July 2006 ©2006 Amprobe Test Tools. ® All rights reserved. Printed in Taiwan.
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Page 4: Table Of Contents
38XR-A Digital Multimeter Contents Safety Information ....................2 Symbols Used in this Manual ................2 Introduction ......................3 Making Measurements..................3 Verify Instrument Operation................3 Range Selection ....................3 Correcting an Overload (oor -o) Indication W ..........3 Measuring DC Voltage ............ See Figure ..4 Measuring AC + DC Voltage (True rms)....See Figure -2- &... -
Page 5: Safety Information
Safety Information • The 38XR-A Digital Multimeter is UL, CSA, and EN61010-1 certified for Installation Category III – 1000V and Category IV – 600V. It is recommended for use with fixed equipment installations, such as, distribution panels, feeders and short branch circuits and lighting systems in large buildings; and for the primary supply level, such as, an electric meter or an overhead or underground utility service. -
Page 6: Introduction
Range Selection In addition to autoranging the 38XR-A allows you to manually select and lock a range by pressing the RANGE button. RANGE appears on the display to indicate that manual ranging is active and the range is locked. When appropriate, each subsequent press of the range button steps the meter to the next higher range. -
Page 7: Measuring Dc Voltage
Measuring DC Voltage See Figure 1. Set the Function Switch to v. 2. If RANGE is displayed, press the RANGE button to enable autoranging. 3. Connect the Test Leads: Red to E, Black to COM 4. Connect the Test Probes to the circuit test points. 5. -
Page 8: Measuring Dc Current
Measuring DC Current See Figure 1. Set the Function Switch to a current function, µA, mA, or 10A. 2. If AC or AC+DC is displayed, press the yellow button to turn on DC. 3. If the µA function is selected and RANGE is displayed, press the RANGE button to enable autoranging. -
Page 9: Testing For Continuity
Match the polarity of the adapter to the polarity of the thermocouple. 3. Connect the TEMP adapter to the E and COM inputs. Note: The 38XR-A is compatible with all K-type thermocouples. The K-type bead thermocouple supplied with the meter is not intended for contact with liquids or electrical circuits. -
Page 10: Measuring Frequency
Measuring dBm See Figure -13- The 38XR-A measures dBm relative to 1 mW referenced to 50 Ω. That is, 10 dBm = 10 mW, 0 dBm = 1 mW, -10 dBm = 0.1 mW, etc. 1. Set the Function Switch to 2. -
Page 11: True-Rms Measurements
• Pulsed Signals • Any non-sinusoidal ac waveform The 38XR-A displays the dc, ac, or ac+dc components of a voltage or current measurment. The dc component is the shift level or baseline. The ac component is the area under the waveshape. The ac+dc component is the combined effect of the ac and dc components. -
Page 12: Beeper Off
Beeper Off The beeper is an aural indicator to identify when the DMM is performing a function, making a range change, detecting a limit, and so on. To disable the beeper use the following procedure: 1. Set the Function Switch to OFF. 2. -
Page 13: Rs232 Download Software (38Sw)
See Figure -14- The 38XR-A includes an RS232 IR communication port for downloading measurement data (value, function, and range) to a PC. The 38SW Accessory Kit (software and cable) povides a graphical user interface for the PC to collect, store, and display measurement data. -
Page 14: Repair
® distributor for an exchange for the same or like product. Non-Warranty Repairs and Replacement – US and Canada Non-warranty repairs in the United States and Canada should be sent to a Amprobe Test ® Tools Service Center. Call Amprobe Test Tools or inquire at your point of purchase for ®... -
Page 15: Warranty
WARRANTY This 38XR-A Digital Multimeter is warranted against any defects of material or workmanship within a period of three (3) years following the date of purchase of the multimeter by the original purchaser or original user. Any multimeter claimed to be defective during the warranty period should be returned with proof of... - Page 16 Crest Factor: ≤ 3 Safety: Input impedance: 10 MO Conforms to EN61010-1, Rev-2 CAT III AC coupled true rms specified from 5 % 1000V, CAT IV 600V, class 2, pollution to 100 % of range overload protection: degree II; CSA 22.2 -1010-1. 1000 V dc or 750 V ac rms P $ ! In accordance with...
- Page 17 CAPACITANCE AC CURRENT true rms (AC+DC) (45 Hz Ranges: 40 nF, 400 nF, 4 µF, 40 µF to 1 kHz) 400 uF (3999 counts) ( auto/manual Ranges: 100 uA, 1000 µA, 10 mA, 100 ranging ) mA, 400 mA, 10A (auto/manual Resolution: 0.01 nF ranging) Accuracy:...
- Page 18 REL: Initiates relative measurements. Ranges: -13 dBm to +50 dBm PEAK±: Record the peak+ or peak- value in Resolution: 0.01 dBm a measurement. Accuracy: RANGE: Initiates manual range mode. ±0.7 dB + 8 dgts ( 45 Hz to 5 kHz ) Backlight: Backlight auto-off approx.
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