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Summary of Contents for Amprobe 37XR-A
- Page 1 37XR-A Professional Digital Multimeter Users Manual 99 Washington Street Melrose, MA 02176 Fax 781-665-0780 TestEquipmentDepot.com...
- Page 2 Manual Supplement 37XR-A Users 37XR-A P - P + RELREC MAXMINAVG HOLD CMOS AC + DC HdBm RANGE SLEEP OFF MIN MAX AVG RANGE HOLD PEAK TTL CMOS MADE IN TAIWAN PATENTS PENDING www.amprobe.com cal >2sec LOGIC TRUE RMS 1000V...
- Page 3 37XR-A P - P + RELREC MAXMINAVG HOLD CMOS AC + DC HdBm RANGE SLEEP OFF MIN MAX AVG RANGE HOLD PEAK TTL CMOS MADE IN TAIWAN PATENTS PENDING www.amprobe.com cal >2sec LOGIC TRUE RMS 1000V 600V 400mA FUSED 10A MAX...
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Page 4: Table Of Contents
37XR-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 ( or ) Indication..........3 Measuring DC Voltage ........See Figure ......4 Measuring AC Voltage (True rms)..See Figure -2 - &... -
Page 5: Safety Information
Safety Information The 37XR-A Digital Multimeter is UL, CSA, and EN61010-1 certified for Installation Category III – 600V and Category II – 1000V. It is recommended for use with local level power distribution, appliances, portable equipment, etc, where only smaller transient overvoltages may occur, and not for primary supply lines, overhead lines and cable systems. -
Page 6: Introduction
Range Selection In addition to autoranging the 37XR-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. 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 2. If RANGE is displayed, press the RANGE button to enable autoranging. 3. Connect the Test Leads: Red to , Black to COM 4. Connect the Test Probes to the circuit test points. 5. -
Page 8: Measuring Resistance
5. Open the test circuit ( ) to establish measurement points. 6. Connect the Test Probes in series with the load. 7. Turn on power to the circuit being measured. 8. Read the display, and, if necessary, correct any overload ( ) conditions. Measuring Resistance See Figure 1. -
Page 9: Measuring Inductance
See Figure -13- The 37XR-A measures dBm relative to 1 mW referenced to 50 . That is, 10 dBm = 10 mW, 0 dBm = 1 mW, -10 dBm = 0.1 mW, etc. 1. Set the Function Switch to dBm. -
Page 10: Additional Features
Additional Features Input Test Lead Warning The meter emits a continuous tone when a test lead is placed in the mA or 10A input jack and the Function/Range Switch is not set to a correct current position. (If the meter is connected to a voltage source with leads connected for current, very high current could result). -
Page 11: 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 12: Product Maintenance
Fuse: Fast Blow .5A/1000V, minimum interrupt rating 30 kA (6.3 x 32 mm) (Amprobe FP500) To replace the 10 A fuse: 1) Remove the battery. 2) Remove the four rear-case screws. -
Page 13: Warranty
Specifications Approvals: General Specifications Safety: Conforms to EN61010- 1: Cat II – (Stated accuracy at 23 °C ±5 °C, <75 % 1000V / Cat III - 600V; Class 2, Pollution relative humidity.) degree II; UL3111-1; CSA C22.2 Display: 4 ¾ digit liquid crystal display No. - Page 14 Peak Hold accuracy: ±(3.0 % + 200 10A/1000V fast blow ceramic fuse dgts) on 100V, 750V range 10×38 mm on 10A input 1000mV, 10V ranges unspecified 10A input: 10 A for 4 minutes maximum followed by a 12 minute cooling period Crest Factor: 3 Burden voltage: See DC Current Input impedance: 10 M...
- Page 15 FREQUENCY CONTINUITY Audible indication: Less than 40 Ranges: 100Hz, 1000Hz, 10kHz, 100kHz, 1000KHz, 10MHz, (Auto/Manual ranging ) Response time: 100 ms Resolution: 0.01 Hz Overload protection:1000 V dc or 750 V ac rms Accuracy: ±(0.1 % rdg + 5 dgts) DIODE TEST Sensitivity: 3Hz to 1MHz: >1.5 V rms;...
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- Page 17 37XR-A Input Waveform Signal d'entrée Eingangsschwingungsform Forma d'onda d'ingresso Forma de onda de entrada Sine Wave Sinusoïdale Sinusschwingung Onda sinusoidale Onda sinusoidal Full Wave, Sine Wave Onde complète, Sinusoïdale Volle Schwingung, Sinusschwingung Onda sinusoidale, onda intera Onda completa, Onda sinusoidal Half-Wave, Sine Wave Demi-onde, sinusoïdale...
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