clamp ammeter short for clamp meter. Its working part mainly consists of an electromagnetic ammeter and core through typed current transformer. Core through typed current transformer core is made into movable opening, and it is in clamp shape, so it is called clamp ammeter. It is a kind of field instrument that can directly measure the AC current of the circuit without disconnecting the circuit. It is very convenient to use in electrical maintenance and widely used.
Clamp meter is an instrument that integrates current transformer and ammeter. It is an important branch of digital multimeter. Its working principle is the same as that of current transformer. Clamp meter is a combination of current transformer and ammeter. The iron core of the current transformer can be opened when the wrench is tightened; The wire through which the measured current passes can pass through the opening gap of the iron core without cutting off. When the wrench is opened, the iron core is closed. The measured circuit conductor passing through the iron core becomes the primary coil of the current transformer, in which the current is induced in the secondary coil through the current. Therefore, the ammeter connected with the secondary coil has an indication ----- to measure the current of the measured line.
Clamp meter was originally used to measure AC current, but now multimeter also has some functions, which can measure AC/DC voltage, current, capacitance capacity, diode, triode, resistance, temperature, frequency and so on.
Product Model: MT87
function ------ range -------- accuracy
DC voltage: 600V [± 1.0%]]
AC voltage: 450v [± 1.2%]]
AC current: 20-400A [± 2.0%]]
resistance: 200kohm [± 1.0%]]
special features
3 1/2 LCD, maximum reading 1999
low battery indicator
overload protection
data retention makes reading easier
buzzer on-off and diode test function
product Features
battery: 2 AAA batteries (without batteries)
wrench jaw diameter: Platinum 21.3mm
body color: yellow
body weight: about 200g
body size: 150 × 60 × 28mm
standard accessories: Test table pen, manual, warranty card
standard packaging: Color box/noodle
standard package quantity: 100 sets
standard packing size: 49*38.5 * 33.5cm
standard packing box Gross weight: 22 kg
