Amprobe 37XR-A Digital Multimeter

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Description
Documents

Features

True RMS
DC Voltage to 1000 V
AC Voltage to 750 V
DC and AC Current to 10 A
Resistance to 40 MΩ
Capacitance, Inductance, Frequency, Duty Cycle, dBm
Continuity: Audible Indication < 40 W
Diode Test
Logic Test: TTL, CMOS
Overload protection
4-3/4 digit; 10,000 count LCD
41-segment analog bar graph
CAT III 600 V, CAT II 1000 V safety rating
UL listed

The Amprobe 37XR-A digital multimeter is a true RMS digital multimeter with a component and a logic test for troubleshooting electronic instrumentation in the lab or on the jobsite. The Amprobe 37XR-A can measure inductance to 40 Hz, frequency to 40 MHz, capacitance to 400 µF and logic to 20 MHz. The meter has a 10,000 count display with 0.1% accuracy at selected ranges.

Amprobe 37XR-A digital multimeters have many great features including an input warning tone when test leads are put in the wrong jacks; continuity beeper; Min/Max, Average, Relative, Peak and Data Hold; Auto power-off and a separate door for battery and fuse access. The Amprobe 37XR-A has a CAT III 600 V, CAT II 1000 V safety rating and is UL listed.

The Amprobe 37XR-A digital multimeter ships complete with:

Test leads with threaded alligator clips (TL36A)
9 V battery
Magne-Grip holster w/magnetic hanging strap (H2-XRA)
Spare fuse
Manual

Amprobe 37XR-A Digital Multimeter Specifications

Function	Range	Accuracy
DC Voltage
Ranges	1000 mV, 10 V, 100 V, 1000 V	±(0.1 % rg + 5 dgt)
Resolution	100 µV
AC Voltage (45 Hz to 2 kHz) True RMS
Ranges	1000 mV, 10 V, 100 V, 750 V
	750 V range: 45 to 1 kHz:	±(2.0 % rdg + 10 dgts)
	All other ranges: 45 to 500 Hz:	±(1.2 % rdg + 10 dgts)
	All other ranges: 500 to 2 kHz:	±(2.0 % rdg + 10 dgts)
Resolution	100 µV
AC coupled True RMS specified from 5 % to 100 % of range
DC Current
Ranges	100 µA, 1000 µA, 10 mA, 100 mA, 400 mA, 10 A
	100 µA range:	±(0.5 % rdg + 10 dgts)
	1000 uA to 400 mA ranges:	±(0.5 % rdg + 5 dgts)
	10 A range:	±(1.5 % rdg + 10 dgts)
Resolution	100 µV
AC Current (45 Hz to 1 kHz) True RMS
Ranges	100 µA, 1000 µA, 10 mA, 100 mA, 400 mA, 10 A
	100 µA to 100 mA ranges:	±(1.5 % rdg + 10 dgts)
	400 mA range:	±(2.0 % rdg + 10 dgts)
	10 A range:	±(1.5 % rdg + 10 dgts)
Resolution	0.01 µA
AC coupled True RMS specified from 5 % to 100 % of range
Resistance
Ranges	1000 Ω, 10 kΩ, 100 kΩ, 1000 kΩ, 10 MΩ, 40 MΩ
	1000 Ω to 1000 kΩ ranges:	±(0.5 % rdg + 8 dgts)
	10 MΩ range:	±(1.0 % rdg + 10 dgts)
	40 MΩ range:	±(2.0 % rdg + 10 dgts)
Capacitance
Ranges	40 nF, 400 nF, 4 µF 40 µF, 400 µF
	40 nF, 400 µF ranges:	±(3.0 % rdg + 10 dgts)
	400 nF, 40 µF ranges:	±(3.0 % rdg + 5 dgts)
Resolution	0.01 nF
Inductance
Ranges	4 mH, 40 mH, 400 mH, 4 H, 40 H
	For values of Q ² 7:	±(5.0 % rdg + 30 dgts)
Resolution	1 µH
Frequency
Ranges	100 Hz, 1000 Hz, 10 kHz, 100 kHz, 1000 kHz, 10 MHz	±(0.1 % rdg + 5 dgts)
Resolution	0.01 Ha
Duty Cycle
Ranges	0 to 90 %
Accuracy	5V logic:	±(2.0 % rdg + 20 dgts)
Resolution	0.01 %
Frequency Range	0 % to 10 %: 40 Hz to 990 kHz
	10 % to 90 %: 40 Hz to 20 kHz
Logic Test
Logic Type	TTL, CMOS
Thresholds	Logic 1 (Hi): TTL 2.8 V ±0.8 V, CMOS 4 V ±1 V	Logic 0 (Lo): TTL 0.8 V ±0.5 V, CMOS 2 V ±0.5 V
Frequency Response	20 MHz
dBm
Ranges	-13 dBm to +50 dBm
	45 Hz to 5 kHz:	±(0.7 dB + 8 dgts)
	5 kHz to 10 kHz	±(2.5 dB + 8 dgts)
Resolution	0.01 dBm
Continuity
Audible Indication	less than 40 Ω
Diode Test
Test Current	1.0 mA (approximate)
Open Circuit Volts	3.0 V dc typical
Peak
AC Volts Accuracy	100 V, 750 V ranges:	± (3.0 % + 200 dgts)
	1000 mV, 10 V ranges:	unspecified
Overload Protection
AC/DC Voltage	All ranges: 1000 V DC or 750 V AC RMS
AC/DC Current	µA/mA input: F0.5A/1000 V fast-blow ceramic (6.2 x 32 mm)
	10 A for 4 min. max. followed by 12 min. cooling period

37XRA-datasheet (37XRA-datasheet.pdf, 326 Kb) [Download]

37XRA-manual (37XRA-manual.pdf, 326 Kb) [Download]