Description:
Pointer material: Nickel silver strips
Pointer color: black
Pointer swing direction: from left to right
Pointer length: 23±1 mm from the central axis to the needle end
Pointer width: 0.45 ± 0.05 mm
Electric meter use direction: vertical
Electrical performance
1. Standard test conditions: temperature 20℃, humidity 70%, when there is no difference in test results,
It can also be tested at room temperature and humidity
2. Current sensitivity: the pointer is at the zero scale to the maximum scale (full scale position) 1000 uA ± 10%
3.Internal impedance: 600 Ω ± 10%
4. Insulation resistance: 500V DC plus 50M ohm or more for the outer box of the meter and the electrical circuit. The insulation resistance of the meter housing and the electrical circuit is tested with a 500V DC voltage.
5.Zero position: The meter uses the standard posture, and the place where the front end of the pointer and the center of the zero scale are combined is the reference pointer and the zero scale overlap. The allowable error is ±1mm
6. Balance: the allowable error range of the meter is ±1mm when the standard position is tilted forward and backward by 90 degrees
7. Pointer sticking: Instantly add the full-scale current three times the overcurrent, and slowly decrease to the reading of the current sensitivity 1/2, at this time the pointer will return to the scale of the scale board 1/3 range
8.Friction: When adding current to the meter and slowly increasing or decreasing to a certain value, the error range of the indication point is ±1mm
9. Braking: Instantly add 2/3 of the current value of the scale plate, and the time required from the beginning to the pointer indicating position is within one second
Special test
1. Overload test Input ten times the full scale current every five seconds, and this action is repeated nine times. Each time 0.5 seconds after this test 7-14 items remain normal
2. Vibration test The meter is packaged and subjected to 1,000 up and down 4mm vibrations per minute on the vibration plate, 10 minutes in each direction. After this test, the 7-14 items remain normal
3. Impact test After being packaged, the meter is dropped from a height of 30 cm on a 3cm thick wooden board. The X.Y.Z. three-direction test has been tested for 7-14 items and remains normal.
4. Reliability test After 100,000 calibration point current input, the current sensitivity limit is still within the standard
5. Environmental impact test Temperature 50℃, humidity 85%, lasting 100 hours, after this test 7-14 items remain normal
6.Terminal tension test: The terminal must withstand 1kg of tension for 60 seconds without being affected
Other
1. Operating temperature limit -10℃ to+60℃ RH 35 to 85%
2. Storage temperature limit -20℃ to+60℃ RH 35 to 85%
Do not place the meter under direct sunlight, and store the meter in the packaging box to prevent foreign objects from entering the interior of the meter
3. Soldering condition Put the terminal about 3 mm into the tin plate at 230℃ for 3.5 seconds
After this test, 7-14 items remain normal
Soldering tin temperature Hold the solder gun at 350℃, and contact the terminal for 3.5 seconds, and the tip of the terminal is about 3mm in contact with the solder gun. After this test, items 7-14 remain normal
4. Anti-static test three times with a dry nylon cloth in the same direction on the surface of the transparent cover, the difference of the pointer on the mark is less than 1/3 of the length of the scale, and it will return to the zero position after three seconds.
5. Bulb specifications Yellow LED 12V 20mA
Package
1*TN-42AWF High Precision VU Meter DB Power Meter with Backlight
Payment Method: PAYONEER
Shippment:
1.We provide free shipping to international via China Post Airmail . We can also ship by UPS/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment.
2.International shipping requires complicated shipping procedures, If you have not received your shipment within 30 days from payment, please contact us.
Returns & Replacements & Repair:
We accept returns & replacements within 14 days from the day the customer receive the products, please make first contact within 14 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways.
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