1.This product is a multi-functional tachometer/counting meter with tachometer function, counting function and upper limit alarm output function.
2.Reliable performance, simple installation, wide range of applications, generally applicable to harvesters, machine tools, motors, fans and other machinery and equipment, devices that require speed measurement, as well as production counting and other occasions.
3.This product is compatible with Hall switch, metal proximity switch, infrared proximity switch and other detection switch signals.
4.This product can output one way NPN alarm signal, the user can connect the indicator light, vocalizer, etc. as a warning role. Users can customize the alarm domain value.
5.This product supporting the sensor is a three-wire sensor, the use of electronic technology, so that the sensor has high sensitivity, reliability, anti-interference performance, into long-term stable work, can be used for speed measurement, counting function.
6.The product speed measurement using Hall sensor, through the program internal function can be set a probe to multiple detection points, so as to improve the detection accuracy. The speed measurement adopts multi-cycle average speed measurement method, which has a wide range of low speed and high speed measurement, as well as excellent measurement accuracy. Counting function adopts the external counting function of microcontroller timer to achieve stable and reliable counting.
Working voltage: DC9-24V
Basic range: single detection point speed range 30-80000 rpm
Speed range = single point range / number of detection points (minimum 10 rpm)
Counting: 1-9999
Error range: ±1%, the
Refresh rate: >1 time/sec
Display: 4-digit 0.56-inch red digital tube
Dimension: 78x42x24 mm
Opening size: 76.5X39.5 mm
Installation: embedded installation
Operating temperature: 0 to 60 ℃ (relative humidity below 80%)
Display Description.
The tachometer uses a 4-digit digital tube to display data
Speed single detection point display resolution
Display resolution only expresses the number of bits displayed, not the measurement accuracy
Speed (rpm) display resolution
| Rotational speed (rpm) | Display Resolution | Examples |
| Less than 30 | Display 0000 | |
| 30-999 | 0.1 rpm | Display 123.4 Actual speed 123.4 rpm |
| 1000-9999 | 1 rpm | Display 1234, actual speed 1234 rpm |
| 10000-80000 | 10 rpm | Display 1.234 Actual speed 12340 rpm |
| Greater than 80,000 | Display F --- Out of range |
When counting, the display resolution is 1 time
No. Function Description
1 Operating status light Always on
2 Alarm light This light is on when the alarm requirement is reached.
3 Menu function key Enter menu/Exit menu/Save parameters
4 Shift button Enter setting/select setting bit
5 Up button Menu navigation/ parameter increase
6 Down button Menu browse/parameter decrease
1 Enter the menu: Press the menu function key to enter the menu settings
2 Menu browsing: menu browsing with the up and down keys
3 Enter setting: Press the shift button to enter setting
4 Parameter change: change the parameter by up and down button
5 Parameter save: Press the menu function key to save the parameter
6 Exit the menu: Press the menu function key again to exit the menu
1* Speed meter
1* 5-core cable
1* 2 core cable
1* NJK-5002C sensor
1* Magnet
| No. | Menu | Parameters |
| 1 | 1-FC | Function selection ---F speed mode ---C counting mode, default speed mode |
| 2 | 2-Pn | Detection point setting Range 1-3 Default 1 |
| 3 | 3-SL | Low speed alarm Range >10 Alarm disabled below 10, default 0 |
| 4 | 4-SH | High-speed alarm range <80000 Alarm disabled when greater than 80000, default 99999 |
| 5 | 5-CA | Counting Mode Counting Alarm Value Range 1-9999 |
| 4 | 5-AL | Counting mode alarm value Range 1-9999 =0 when alarm is disabled Default 0 |
When the current detection value reaches the alarm requirement, the alarm light will be on, and at the same time A+ A- output 12V power supply (the same power supply voltage) signal, can be connected to the buzzer or other alarm prompting devices, the current can not exceed 500mA.
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Ple
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication
When you satisfied with our product and services please leave us positive feedback.
If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours