Pointer material: Nickel silver strips
Pointer color: white
Pointer swing direction: from left to right
Pointer length: 30± 1 mm from the central axis to the needle end
Hand width: 0.45 ± 0.05 mm
Electric meter use direction: vertical
Characteristics:Standard test condition temperature: 20℃, humidity 70%. It can also be tested at room temperature and humidity.
The flu degree indicator in the zero-degree range can reach a maximum scale sensitivity of 260 uA ± 10% (full scale position)
Internal impedance: 650 Ω ± 10%
Insulation resistance meter outside the box, circuit with 500V DC and 50M ohm meter case
The circuit impedance of electrical insulation is the insulation value of the 500V DC voltage test. The pointer overlaps the zero-scale tolerance of the ±1mm balance meter in the standard position, and is tilted 90 degrees to allow an error range of ±1mm
The pointer installation current instantly adds three times the full-scale current, and gradually decreases to 1/2 the reading of the current sense.
The pointer will return to the dial in the 1/3-scale tribometer after coupling with the current, and slowly increase or decrease to a certain value, indicating the error point range is ±1mm,
Brake immediately, plus 2/3 of the current value of the dial pointer indicates the position of the required time, which is one second or less.
Special test:
The test is performed every 5 seconds to 10 times the full-scale current input overload interval, and the operation is repeated 9 times every 0.5 seconds. After this test, 7-14 remained normal.
The vibration tester is packaged on a vibrating plate 1,000 times per minute, and the upper and lower 4mm vibrations last 10 minutes in each direction. After this test 7-14, the tester that maintains normal impact is packaged on a 3 cm thick wood board at a height of 30 cm, and the XYZ three-way test is performed. After this test 7-14 to maintain normal reliability test, the current input of 100,000 calibration points are still standard within the current sense limit. The environmental impact test temperature is 50°C, humidity is 85%, and lasts for 100 hours, thereafter 7-14 Each test remained normal.
Terminal tension test: The terminal must withstand a kilogram of tension and will not be affected for 60 seconds.
Others:Using the temperature limits :-10 ℃ to +60 ℃ RH 35 to 85%Storage temperature limits :-20 ℃ to +60 ℃ RH 35 to 85% -----Do not use the meter in direct sunlight, and PUT the meter in the box to avoid foreign matter into the meter internal.Soldering Condition terminal about 3 mm placed in the temperature of 230 ℃ tin plate, placed 3.5 seconds.After this test, 7-14 to maintain normal,Hand-held soldering gun to solder temperature 350 ℃, the terminal contact for 3.5 seconds, the terminal front-end of about 3mm contact with the solder gun.After this test, 7-14 to maintain normal,Anti-static test in the same direction three times, to characterize the difference between the pointer in the length of the scale in a transparent cover surface to dry nylon 1/3 back to the zero position.Bulb size: White backlight board LED 2.8-3.6V 20mA This shop can change the backlight voltage to 12V for free