Q1: What is a clamp meter?
Q1: A clamp meter is a device used to measure current conveniently and safely. It is very efficient to measure current without using test leads. To measure
current, all you have to do is place a wire in the jaws of the clamp meter. When current flows through a conductor, a magnetic field is created. The device helps to detect magnetic fields so that it can provide corresponding current readings, the sisco clamp meter can also be used as a multimeter.
Q2: How a clamp meter works?
A2: Clamp meters work on the principle of magnetic induction and measure alternating current without contact. Like every conductor, the current flowing
through the wire creates a magnetic field. Hall effect sensors detect the magnetic field produced by the current, which in turn creates a small voltage
across the sensor.
Q3: How often does a clamp meter need to be calibrated?
A3: A clamp meter typically needs to be calibrated annually to ensure it continues to measure within sisco's specifications.
Tips: What is the analog bar graph display function of a current clamp meter?
There are two types of meters available today, one is a digital meter and the other is an analog meter. Digital meters have an LCD display that allows the operator to read the values very intuitively and easily. In this respect, analog meters are unmatched, but analog meters also have the unique advantage of being able to use the instantaneous deflection of the pointer to reflect changes in the nature of the object being measured. To retain this feature of analog meters, digital meters use an analog bar graph on the LCD display to simulate the pointer function of the meter.
If both DC and AC signals are present in the measured signal, the usefulness of the analog bar graph is immediately apparent. For example, when using the DC function of an AC/DC current clamp meter to measure a regulated power supply during maintenance, check the analog bar graph. If the analog bars appear jittery, the DC voltage contains AC voltage. The regulated power supply is unstable.