Speed monitoring and protection device

NegotiableUpdate on 12/23

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Zero speed monitoring device, equipped with vibration speed sensor, can measure the amplitude of bearing vibration of various rotating machinery, monitor the vertical and horizontal vibration of rotating machinery, especially suitable for machines with ball bearings. In such machines, the vibration of bearings can be transmitted to the casing for continuous measurement and protection of rotating machinery. Special attention should be paid to the installation of sensors to avoid reducing the amplitude of the sensor, changing the frequency effect, or generating signals that cannot represent the true vibration of the machine. This monitoring device is particularly suitable for situations where a large number of vibration points need to be measured, such as motors, compressors, fans, centrifuges, etc.

Product Details

Wiring Instructions for NE9015 Speed Monitoring Instrument

Sensor linear compensation:

Through the DF2900 configuration software, up to 20 segments of sensor data can be inputted from the keyboard or automatically collected, and the instrument can perform linear correction on the sensor data according to this data table. Users can choose whether to perform linear correction on the sensor.

Differential identification:

For monitoring purposes, when two channels monitor the same displacement, if the difference between the two exceeds the limit, it is highly likely that the sensor or measurement circuit has malfunctioned; When the difference value exceeds, users can choose whether or not to

Issue warnings and lock hazard control outputs to prevent misoperation and provide protection for the unit.

Rate of change identification:

Thermal expansion or valve position and stroke are generally gradual variables. When a sudden change occurs, it is usually due to a malfunction in the sensor or measurement circuit, rather than actual changes in the thermal expansion value of the unit. When the rate of change exceeds, users can choose whether to issue a warning and lock the hazard control output to prevent misoperation and provide protection for the unit.

(This feature is not currently available)

Wiring Instructions for NE9015 Speed Monitoring Instrument

2．performance metrics

Standard desktop metal (or ABS plastic) chassis.

ABS frame, flexible film panel.

RS232 serial port is used for programming configuration;

Communication speed:19200 bits/S.

Power supply: At the input power supply165～265VacWithin the range, all instruments can work stably;

The rated power consumption is 7.5 watts.

Signal input: Connect two LVDT sensor input signals;

Provide excitation signals to two sensors;

Signal source amplitude: 6Vp-p.

Signal source frequency: 1000Hz.

Measurement range: digital programming，Optional;

Measurement is better than ± 1% (full scale).

Display a bright red LED digital display;

Digital display: ± 1 word.

Measurement frequency range: 0-10 Hz.

Record output: Standard current and voltage, all with output short-circuit protection function.

4-20 mA or (0-10 mA), load capacity ≮ 500 Ω

1-5V or (0-10V), current output capability ≮ 30mA.

Buffer sensor signal output: with short-circuit protection function, output impedance of 100 Ω.

Relays: Four sets of relays, each with a set of contact outputs (normally closed, midpoint, normally open);

Determine the output function form of the relay through software programming;

Contact output capacity: AC220V, 2A

Usage environment: Temperature: 0-55 ℃;

Relative humidity: not greater than 95%, no condensation.

Panel size: 160mm × 80mm; chassis depth: 200mm

Installation hole size: (151 ± 0.5) mm × (76 ± 0.5) mm

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