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Questions & Answers
A Specifications: Display: 0.56" 4-digit LED Display Color: Blue / Green / Red (Optional) Rotate Speed Range: 5-9999RPM Frequency Range: 0-98990.1Hz Rate Setting Range: 1-99(default: 01) Reset Time: 10s Refresh Time: 120-1200RPM: 0.2~0.5s; 2400-9999RPM: 0.25~0.6s Accuracy: <5000RPM: Approx. 2RPM; >5000RPM: Approx. 3RPM Input Signal: Voltage Pulse Signal, Active Contact Signal, PNP, NPN Power Supply: DC 8-15V Installation: Embedded *Wiring: +12V: DC 8-15V Input Positive GDN: DC Power Negative IN+: Signal Input Panel Dimension: 72 * 36 * 20mm / 2.83 * 1.42 * 0.8in Item Weight: 25g / 0.88oz
Some motors require a pull up resistor to read the rpm correctly ... you might check the requirements of your motor
By Cory C on March 19, 2018
Make sure your red is Power and your black is negative, it is marked on the back panel which wire is which, but I have yet to get a reading off this unit.
By KilRoy on March 18, 2018
Please note that TOMTOP Forums are a community for all communicating and getting help each other. There will be some enthusiastic friends participate in your discussions. Of course TOMTOP customer service (with tomtop customer service icon) response is guaranteed ,which is the same way you contact us at http://www.tomtop.com/contactsopen this forum in full page
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