4 Digital LED Display Tachometer RPM Speed Meter Panel Inductive Hall Effect ...

Description

Brand New 4 Digital LED Display Tachometer RPM Speed Meter Panel Inductive Hall Effect Sensor NPN Proximity Switch Red/Blue(Blue)
Manufacturer model:
Walfront2138z70dsg-02
Measure varied motor RPM Measure range: 10-9999 RPM
Come with hall sensor and magnet, good stability, high precision and strong anti-interference ability
Input pulse signal: NPN/PNP open collector ,contact switch, contactless switch, level pulse Input signal voltage: low level: -30V -0.6 V, high level: 4-30V
The external appearance adopts standard size, convenient to install and easy to use
Measuring range: frequency: 9999Hz, 999.9 HZ, 99.99 KHZ, automatic switching selection
Description
Product Description
Digital LED tachometer adopts the latest A/D conversion chip and the high stability benchmark IC, adopts electronic chip component, reasonable circuit design. It can be applied to the measurement of voltage, current and external sensor to measure temperature, pressure, displacement and other physical quantities. Suitable for all kinds of digital instrument display.
Appearance size:
80 x 42 x 25mm/3.14 x 1.65 x 0.98inch
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Specifications:
Measurement accuracy:
±0.1%
Display mode:
0.56"LED
Display refresh rate:
>3 times/sec
Working power supply:
DC8-24V, 30mA,
Measurement range:
10-9999RPM
Hall proximity switch:
magnetic
Appearance size:
80 x 42 x 25mm/3.14 x 1.65 x 0.98inch
LED display(Optional):
red, blue
Overrange display:
the first one shows "1" or "-1", and the latter three do not show
Precautions:
Precautions:
1. Connect the plug correctly according to the wiring diagram
2. Should avoid strong electromagnetic interference and it is better to use shielded wire or double stranded wire for measuring conductors
3. The counting signal of the counter and the switch of the zero clearing signal input or the circuit shall be as close as possible to the terminal of the counter to make the signal line as short as possible
4. Avoid with other such as: high voltage wires or power wires and so on with same tube or twisted trace line, in order to avoid unnecessary interference.If necessary, please use the shielded wire, shielding layer connect the"+" of the count terminals
5. It is not recommended to use a mechanical switch or micro switch because they have a relatively short life span and can be counted by mistake after long time. If you have to, please try better quality ones, strongly suggest a magnetic control switch
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Customer's Q&A 1
Question:How long is the wires on the sensor and can they be extended to 20 ft?
Answer:Wires are 50 inches long.
Customer's Q&A 2
Question:Lost small magnet - what type of magnet should I use in its place?
Answer:Any other magneto will work, I used 5 other permanent magnetos.
Customer's Review
Use de readout for the spindle speeds of my mini milling machine, very happy with the result, refresh rate a bit slow , but it is ok ,you just have to wait for the readout to catch the speeds.
Customer's Review
Has a bright display and is very easy to read.
Refresh rate is about 1 second
Works well. Update rate is slow, but it makes for easy reading and I'm using it on a stationary engine so it doesn't really matter. I don't know how well it will stand up but first impressions are good.
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Shipping and Handling
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Return Policy
All our products are brand new and sealed. All items qualify for returns within 30 days of receipt.
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