Description
Specifications： Power requirement: DC 8-24V Measure range : 10-9999RPM. Clear zero: Automatic. Operating temperature: 0 – 50°C. Measurement accuracy: ±0.1%, reading ±1 word Display refresh rate: greater than 3 times/second Product weight: 79.5g Product size 1: Display 79 x 43 x 26mm Product size 2: Bracket 38 x 38 x 12mm Over-range display: the first digit displays “1” or -1″, and the last three digits do not display Package includes： 1 x Tachometer 1 x Hall NPN proximity sensor 1 x Magnet Notice： 1. The Hall switch is NPN normally open type, and the detection distance of the Hall switch needs to be within 10MM. The Hall switch installation diameter is 12MM, and the wire length is within 1 meter. 2. Strong electromagnetic interference should be avoided. It is better to use shielded wire or twisted pair for the measurement wire. 3. The count signal of the counter and the switch or circuit of the reset signal input should be as close as possible to the terminal of the counter to keep the signal line as short as possible. 4. Avoid the same tube or twisted wiring with other wires such as strong electric wires or power wires to avoid unnecessary interference. If necessary, please use shielded wires, and the shielding layer is connected to the counting terminal “+”.