2004/04/19 Caterpillar

The 237-5130 Digital Multimeter Gp Features a Built-in Infrared Thermometer {0785}

Usage:

769C 01X

Caterpillar Products:
All

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Illustration 1	g01051930

The 237-5130 Digital Multimeter Gp measures true root mean square (RMS) AC voltage, DC voltage, current, resistance, capacitance, frequency, duty cycle and temperature. This multimeter group also features a built-in infrared thermometer and a built-in laser pointer. The display is easily read. This multimeter group provides a low cost alternative to some other multimeters that are available.

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Table 1
Specifications
Feature	Specification
Temperature Sensor	Type-K Thermocouple (included)
IR spectral response	6 to 16 µm
IR emissivity	0.95 fixed
IR distance ratio	8:1
Input impedance	>7.5 MOhms (VDC and VAC)
AC response	True RMS
ACV bandwidth	50 Hz to 1 kHz
Display	4,000 count backlit, liquid crystal
Overrange indication	"OL" is displayed
Auto power off	15 minutes (approximately)
Operating temperature	50 ° C to 0 ° C (122 ° F to 32 ° F)
Storage temperature	-20 ° C to 60 ° C (-4 ° F to 140 ° F)
Weight	342 g (0.754 lb)
Size	187 X 81 X 50 mm (7.4 X 3.2 X 2.0 inch) includes holster

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Table 2
Electrical Specifications
Function	Range	Resolution	Accuracy ⁽¹⁾
DC voltage	400 mV	0.1 mV	±(0.3% reading + 2 digits)
	4 V	0.001 V	±(0.5% reading + 2 digits)
	40 V	0.01 V	±(0.5% reading + 2 digits)
	400 V	0.1 V	±(0.5% reading + 2 digits)
	600 V	1 V	±(0.8% reading + 3 digits)
AC voltage			50 Hz to 400 Hz	400 Hz to 1 kHz
	400 mV	0.1 mV	±(1.5% reading + 15 digits)	±(2.5% reading + 15 digits)
	4 V	0.001 V	±(1.5% reading + 6 digits)	±(2.5% reading + 8 digits)
	40 V	0.01 V	±(1.5% reading + 6 digits)	±(2.5% reading + 8 digits)
	400 V	0.! V	±(1.5% reading + 6 digits)	±(2.5% reading + 8 digits)
	600 V	1 V	±(1.8% reading + 6 digits)	±(3% reading + 8 digits)
DC current	400 µA	0.1 µA	±(1.5% reading + 3 digits)
	4000 µA	1 µA	±(1.5% reading + 3 digits)
	40 mA	0.01 mA	±(1.5% reading + 3 digits)
	400 mA	0.1 mA	±(1.5% reading + 3 digits)
	4 A	0.001 A	±(2.5% reading + 5 digits)
	20 A	0.01 A	±(2.5% reading + 5 digits)
AC current			50 Hz to 400 Hz	400 Hz to 1 kHz
	400 µA	0.1 µA	±(1.8% reading + 8 digits)	±(3.0% reading + 7 digits)
	4000 µA	1 µA	±(1.8% reading + 8 digits)	±(3.0% reading + 7 digits)
	40 mA	0.01 mA	±(1.8% reading + 8 digits)	±(3.0% reading + 7 digits)
	400 mA	0.1 mA	±(1.8% reading + 8 digits)	±(3.0% reading + 7 digits)
	4 A	0.001 A	±(3.0% reading + 8 digits)	±(3.5% reading + 10 digits)
	20 A	0.01 A	±(3.0% reading + 8 digits)	±(3.5% reading + 10 digits)
Resistance	400 Ohms	0.1 Ohms	±(0.8% reading + 4 digits)
	4 kOhms	0.001 kOhms	±(0.8% reading + 2 digits)
	40 kOhms	0.01 kOhms	±(1.0% reading + 2 digits)
	400 kOhms	0.1 kOhms	±(1.0% reading + 2 digits)
	4 MOhms	0.001 MOhms	±(1.0% reading + 2 digits)
	40 MOhms	0.01 MOhms	±(3.0% reading + 5 digits)
Capacitance	40 nF	0.01 nF	±(5.0% reading + 7 digits)
	400 nF	0.1 nF	±(3.0% reading + 5 digits)
	4 µF	0.001 µF	±(3.5% reading + 5 digits)
	40 µF	0.01 µF	±(3.5% reading + 5 digits)
	100 µF	0.1 µF	±(5.0% reading + 5 digits)
Frequency ⁽²⁾	5.000 Hz	0.001 Hz	±(1.5% reading + 5 digits)
	50.00 Hz	0.01 Hz	±(1.5% reading + 5 digits)
	500.0 Hz	0.1 Hz	±(1.2% reading + 2 digits)
	5.000 kHz	0.001 kHz	±(1.2% reading + 2 digits)
	50.00 kHz	0.01 kHz	±(1.2% reading + 2 digits)
	500.0 kHz	0.1 kHz	±(1.2% reading + 2 digits)
	5.000 MHz	0.001 MHz	±(1.5% reading + 4 digits)
	10.00 MHz	0.01 MHz	±(1.5% reading + 4 digits)
Duty cycle ⁽³⁾	0.1 to 99.9%	0.1%	±(1.2% reading + 2 digits)
Temperature (Type-K Thermo- couple)	-20° C to 750° C (-4° F to 1382° F)	1° C/1° F	±(3.0% reading + 3 digits) ⁽⁴⁾
Temperature (IR)	-20° C to 270° C (-4° F to 518° F)	1° C/1° F	±2° reading or ±2° C, ±4° F

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^( 1 )	Accuracy is stated at 18° to 28° C (65° to 83° F) and less that 75% RH. The accuracy specification consists of two elements. The % reading is the accuracy of the measurement circuit. The + digits is the accuracy of the analog to digital converter.
^( 2 )	Sensitivity: 0.8 V RMS min @20% to 80% duty cycle and <100 kHz; 5 V RMS min @ 20% to 80% duty cycle and >100 kHz.
^( 3 )	Pulse width is 100 µs - 100 ms; frequency is 5 Hz to 150 kHz.
^( 4 )	Probe accuracy not included

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Table 3
Service Parts for the 237-5130 Digital Multimeter Gp
Pt. No.	Description
237-5125	Fuse (20-AMPERE)
8Q-6668	Fuse (250-VOLT, 0.5-AMPERE)
1U-9534	Battery (9-VOLT)
212-2158	Test Lead Tool Group