Description:
Pointers Material: Zinc and copper-nickel alloy
Pointer color: orange
The direction of the pointer swing : left to right
Pointer length : 44± 1 mm from the center axis to the needle end
Pointer width : 0.45 ± 0.05 mm
Electrical Characteristics:
standard test conditions temperature: 20 ℃, humidity 70% . Can also be tested under normal temperature and humidity
The influenza degree pointer at the zero scale to the maximum scale sensitivity of 960uA ± 8% (full scale position)
internal impedance :650Ω ± 10%
Insulation impedance meter outside the box plus the electrical circuit with 500V DC plus 50M ohm meter shell
Electrical
insulation of the circuit impedance is 500V DC voltage test of the
insulation value. Pointer to overlap with the zero-scale tolerance of ±
1mm balanced meter using a standard position and tilt 90 degrees to
allow the error range of ± 1mm
pointer to mount
the current instant plus three times the full scale current, and slowly
reduced to the the electric influenza degree 1/2 reading,
The pointer will
return to the scale plate within 1/3 scale friction meter coupled with
the current, and slowly increase or decrease to a certain value,
indicating the point of error range of ± 1mm,
brake instantly plus
scale plate 2/3 of the current value of the pointer indicates the
location of the time required for a second or less.
Special test
tests on each
interval of five seconds to ten times the full scale current input
overload, the action is repeated nine times for each time of 0.5 secondsAfter this test, 7-14 to maintain normal.
vibration test
meter packaged in the vibration plate 1,000 times per minute, up and
down 4mm shock In each direction for 10 minutes. After this test 7-14 to
maintain normal impact test meter packaged 30-cm height of fall in 3cm
thick wooden board, XYZ three-direction test.After
this test, 7-14 to maintain normal reliability test the current input
of 100,000 calibration points within the limits of current sense is
still the standard environmental impact test temperature of 50 ° C,
humidity 85%, for 100 hours, after this test 7-14 to maintain normal.
terminal pull test :terminals must withstand one kilogram tension, sustained 60 seconds will not be affected.
Others:
using the temperature limits :-10 ℃ to +60 ℃ RH 35 to 85%
Storage temperature limits :-20 ℃ to +60 ℃ RH 35 to 85%