ZHCK-450 reverse speed monitoring protector
ONE） Brief description of ZHCK-450 reverse speed monitoring and protection instrument
ZHCK-450 reverse speed monitoring and protection instrument is the intelligent speed monitoring and protection instrument with single chip microcomputer as the core. The monitoring instrument has the functions of speed monitoring, positive and reverse monitoring, double alarm setting point, analog current output, etc.. It is suitable for monitoring and protection of rotation speed of rotating machinery in electric power, petroleum, chemical industry and other industries.
L sensor signal input
Reverse speed alarm tachometer sensor input mode: positive and negative NPN open collector Holzer sensor or eddy current sensor.
Speed disc gear teeth number: 1~255 teeth, generally recommended to choose three teeth wheel can.
L overspeed protection and speed alarm
The intelligent tachometer has two speed alarm limits. As long as the measured speed exceeds any set value, the warning indicator light or danger indicator lamp on the front panel of the intelligent tachometer is lighted, and the alarm relay or the dangerous relay acts at the same time, and the output switch signal is displayed.
L reverse alarm
When the tachometer gear reverses, the reverse indicator light is on, and the alarm relay action is reversed, and the switch signal is output.
L current output
Relative to the measurement speed, the intelligent tachometer 4 ~ 20mA analog output, corresponding speed of 0 ~ 6000rpm.
Note: if it is special, the full value should be explained at the time of ordering.
Two) technical indicators
1. shows: 4 red LED
2. signal input: positive and negative NPN open collector pulse signal
3. measurement range: 0 ~ 6000rpm
4. display accuracy: + 1rpm
5. alarm, danger: arbitrarily set within full range
6. alarm output: AC250V/5A
7. current output: 4 ~ 20mA
The sensor model corresponding to ZHCK-450 reverse speed monitoring and protection instrument is ZDS-90 speed sensor designed by our company according to the long-term user feedback. For details, please contact us.
