GW Instek - GCM-403 & GCM-407 Digital Clamp Meter

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Digital Clamp Meter -- ACA, ACV, DCV, Ohm, Diode, Buzzer. The GCM-403 is digital clamp meter can measure AC/DC voltage, AC/DC current, resistance, diodes, continuity, capacitance, frequency and temperature. Tapered jaws, auto range, data hold, REL function and auto power off which makes it a super ...Read more

GW Instek - GCM-403 & GCM-407 Digital Clamp Meter

FEATURES :

Auto Range, Expect Current Measurement
Auto Power Off
Max Hold
True RMS Measurement (GCM-407)
(AC)600A/600V Max Input (GCM-403)
(AC)600A/750V Max Input (GCM-407)
Mini Size
High Accuracy
MAX Clamp Size: 28mm (GCM-403)

Details
Specifications

Digital Clamp Meter -- ACA, ACV, DCV, Ohm, Diode, Buzzer.

The GCM-403 is digital clamp meter can measure AC/DC voltage, AC/DC current, resistance, diodes, continuity, capacitance, frequency and temperature. Tapered jaws, auto range, data hold, REL function and auto power off which makes it a superb tool for electricians.

The GCM-407 is digital clamp meter with true RMS measurement. Featuring tapered jaws, a wide range (AC 600A/750V, DC 1000V max input), capacitance measurement as well as non-contact voltage sensing function and the ability to keep MAX/MIN or hold data and automatically power down make the GCM-407 suitable for almost any cable measurement task.

New

Old

Description

GCM-403

GCM-302

Compared with the old model- Advantages

GCM-403 expanded measurement items:
DCA/Capacitance/Temperature/Frequency Counter and expanded functionalities: REL, Data Hold

Compared with the old model- Disadvantages

Smaller GCM-403 Clamp which is only ∮ 28mm

GCM-403 does not have Max Hold

GCM-407

GCM-303

Compared with the old model- AdvantagesGCM-407expanded measurement items: Voltage Range/Capacitance and expanded functionalities : No Contact Voltage (AC only)/ Min Hold/REL/Backlight

GCM-403/ GDM-407 Specifications

The specifications apply when the GCM-403 / GDM-407 is powered on for at least 30 minutes under +20°C~+30°C.

	GCM-403	GCM-407
ACV
Range	4V, 40V, 400V, 600V	6V, 60V, 600V, 750V
Resolution	0.001V, 0.01V, 0.1V, 1V	0.001V, 0.01V, 0.1V, 1V
Accuracy	±(1.0 + 5) ~ ±(1.2 + 5)	±(1.2 + 5) ~ ±(1.5 + 5)
Input Impedance	≧10MΩ // 100pF at least	≧10MΩ
Frequency Response	40~400Hz	40~400Hz
ACA
Range	40A, 600A	6A, 60A, 600A
Resolution	0.01A, 0.1A	0.001A, 0.01A, 0.1A
Accuracy	±(2.5 + 5) ~ ±(2.5 + 8)	±(2.5 + 5) ~ ±(2.5 + 30)
Frequency Response	50~60Hz	50~60Hz
DCV
Range	400mV, 4V, 40V, 400V, 600V	600mV, 6V, 60V, 600V, 1000V
Resolution	0.1mV, 0.001V, 0.01V, 0.1V, 1V	0.1mV, 0.001V, 0.01V, 0.1V, 1V
Accuracy	±(0.8 + 1) ~ ±(1.0 + 3)	±(0.8 + 1) ~ ±(1.0 + 8)
Input Impedance	≧10MΩ	≧10MΩ
DCA
Range	40A, 600A	-
Resolution	0.01A, 0.1A	-
Accuracy	±(2.0 + 5)	-
OHM
Range	400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩ	600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩ
Resolution	0.1Ω, 0.001kΩ, 0.01kΩ, 0.1kΩ, 0.001MΩ, 0.01MΩ	0.1Ω, 0.001kΩ, 0.01kΩ, 0.1kΩ, 0.001MΩ, 0.01MΩ
Accuracy	±(1.0 + 2) ~ ±(1.5 + 2)	±(1.0 + 2) ~ ±(1.5 + 5)
DIODE
Range	4V	6V
Resolution	0.001V	0.001V
Open-circuit Voltage	Approx. 1.48V	Approx. 3.3V
CONTINUITY
Range	400Ω	600Ω
Resolution	0.1Ω	0.1Ω
Accuracy	The buzzer turns on for resistance lower than 10Ω	The buzzer turns on for resistance lower than 30Ω
Open-circuit Voltage	Approx. 0.45V	Approx. 1.2V
CAPACITANCE
Range	40nF, 400nF, 4uF, 40uF, 100uF	99nF, 999nF, 9uF, 99uF, 999uF, 9mF, 59mF
Resolution	0.01nF, 0.1nF, 0.001uF, 0.01uF, 0.1uF	0.01nF, 0.1nF, 0.001uF, 0.01uF, 0.1uF, 0.001mF, 0.01mF
Accuracy	±(4.0 + 3) ~ ±(5.0 + 10)	±(4.0 + 5) ~ ±10
FREQUENCY
Range	10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz, 10MHz	-
Resolution	0.001Hz, 0.01Hz, 0.1Hz, 1Hz, 10Hz, 100Hz, 1kHz	-
Accuracy	±(4.0 + 3) ~ ±(5.0 + 10)	-
NCV (Non-Contact Voltage)
Distance	-	10mm
Sensing	-	AC Voltage only
TEMPERATURE (˚C only)
Range	-40˚C ~ 1000˚C	-
Accuracy	±(2.5 + 3) ~ ±(8.0 + 5)	-
OTHER FUNCTION
	Data Hold, REL	Data Hold, MAX/MIN, REL, Backlight, Flashlight
LCD DISPLAY
	Liquid crystal display: Displays 4000 counts maximum.	Liquid crystal display: Displays 6000 counts maximum.
CLAMP OPENING DIAMETER
	28mm Maximum	30mm Maximum
POWER SOURCE
	9V battery (16F22)	3 AAA 1.5V zinc manganese batteries
DIMENSIONS & WEIGHT
	210 (L) x 76 (W) x30 (H) mm; Approx. 260g	228 (L) x 77 (W) x41 (H) mm; Approx. 265g (inclusive of the battery)