GW Instek GCM-403 - Digital Clamp Meter
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: 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 |
- 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)
ACV
| Range | 4V, 40V, 400V, 600V |
| Resolution | 0.001V, 0.01V, 0.1V, 1V |
| Accuracy | ±(1.0 + 5) ~ ±(1.2 + 5) |
| Input Impedance | ≧10MΩ // 100pF at least |
| Frequency Response | 40~400Hz |
ACA
| Range | 40A, 600A |
| Resolution | 0.01A, 0.1A |
| Accuracy | ±(2.5 + 5) ~ ±(2.5 + 8) |
| Frequency Response | 50~60Hz |
DCV
| Range | 400mV, 4V, 40V, 400V, 600V |
| Resolution | 0.1mV, 0.001V, 0.01V, 0.1V, 1V |
| Accuracy | ±(0.8 + 1) ~ ±(1.0 + 3) |
| Input Impedance | ≧10MΩ |
DCA
| Range | 40A, 600A |
| Resolution | 0.01A, 0.1A |
| Accuracy | ±(2.0 + 5) |
OHM
| Range | 400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩ |
| Resolution | 0.1Ω, 0.001kΩ, 0.01kΩ, 0.1kΩ, 0.001MΩ, 0.01MΩ |
| Accuracy | ±(1.0 + 2) ~ ±(1.5 + 2) |
Diode
| Range | 4V |
| Resolution | 0.001V |
| Open-circuit Voltage | Approx. 1.48V |
Continuity
| Range | 400Ω |
| Resolution | 0.1Ω |
| Accuracy | The buzzer turns on for resistance lower than 10Ω |
| Open-circuit Voltage | Approx. 0.45V |
Capacitance
| Range | 40nF, 400nF, 4uF, 40uF, 100uF |
| Resolution | 0.01nF, 0.1nF, 0.001uF, 0.01uF, 0.1uF |
| Accuracy | ±(4.0 + 3) ~ ±(5.0 + 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 | - |
| Sensing | - |
Temperature (•C Only)
| Range | -40˚C ~ 1000˚C |
| Accuracy | ±(2.5 + 3) ~ ±(8.0 + 5) |
Other Function
| Data Hold, REL |
LCD Display
| Liquid crystal display: Displays 4000 counts maximum. |
Clamp Opening Diameter
| 28mm Maximum |
Power Source
| 9V battery (16F22) |
Dimensions & Weight
| 210 (L) x 76 (W) x30 (H) mm; Approx. 260g |
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