QCJK-YH Monitor for Diesel Engine

QCJK-YH Monitor for Diesel Engine

A. Overview

The QCJK-I/YH diesel engine monitor (hereinafter referred to as the monitor) is a diesel engine electronic measurement and control system controlled by a microcomputer. It is an electronic device that can automatically detect the working condition of the diesel engine and the diesel engine over-limit protection. The monitor can automatically measure, digitally display, and comprehensively monitor and protect the diesel engine's speed, lubricating oil pressure, lubricating oil water temperature, cooling water temperature, fuel leakage and other parameters, and send out sound and light alarm signals to control the actuator to cut off the fuel oil circuit and automatically control the emergency stop of the diesel engine.

This monitor has the advantages of advanced design, small size, high measurement accuracy, reliable operation, digital display, easy operation and installation, etc. It is a new generation of electronic instrument system that realizes the mechatronics of diesel engine products.

B. Product Features

1. Microcomputer digital control, reliable operation;

2. Diesel engine detection parameters are displayed by digital tubes;

3. Integrate measurement and monitoring;

4. Modularized functional configuration, integrated product structure;

5. Resistant to vibration, moisture, salt spray and high and low temperatures;

6. Strong anti-interference ability;

7. Easy to install and use, high cost performance;

8. Specific parameters can be set by yourself.

C. Main technical indicators

1. Operating environment

a. Working environment temperature: -10℃～+55℃;

b. Relative humidity: ≤98%;

c. Vibration: 2～13.2Hz, amplitude ±1.6mm; 13.2～80Hz, acceleration ±6.9m/s²;

2. Measuring range and accuracy

a. Measuring range: 0～9999r/min;

b. Measuring error: ≤±1r/min (when the number of speed measuring teeth is 60 teeth);

c. Maximum signal frequency: 50KHz;

d. Equipped sensor: SZMB type magnetoelectric speed sensor;

3. Pressure measurement range and accuracy

a. Accuracy level: Level 3;

b. Measuring range: 0～0.8MPa;

c. Equipped sensor: pressure sensor.

4. Temperature measurement range and accuracy

a. Accuracy level: Level 3;

b. Measuring range: 0℃～120℃;

c. Equipped sensor: temperature sensor.

5. Display mode

Four-digit digital tube display. (485 communication can be used)

6. Number of measurement and control channels

Speed: 1 channel;

Pressure: 1 channel;

Water temperature: 1 channel;

Oil temperature: 1 channel;

Battery voltage: 1 channel;

Timing: 1 channel.

7. Shell protection level

Monitor: IP44

8. Power supply: DC24V +30%-25%

D. Function

1. Meaning of indicator lights

Alarm light: When the parameter exceeds the limit, it flashes and stays on after silencing; it goes out when there is no alarm;

Parking light: When the parameter exceeds the parking limit, it stays on; it goes out after troubleshooting and resetting;

Charging light: When the charging generator works normally, it stays on; when the generator fails and does not generate electricity, it goes out;

Fuel leakage light: fuel leakage indication;

2. Meaning and use of buttons

Start: Start button. Press and hold this button, and the monitor sends a start signal;

Stop: Stop button. Press and hold this button, and the monitor sends a stop signal;

Silence: Silence button. When there is an alarm signal, press and hold this key, the sound alarm disappears, and the light alarm remains unchanged;

Self-test: Self-test key. When there is no speed, press and hold this key, the monitor will self-test;

Reset: Reset key. Press and hold this key, the monitor will reset to zero and resume testing various parameters;

Set: Set key. When the diesel engine is not started and the speed is zero, press and hold this key, the monitor will enter the parameter setting interface;

Wind and waves: In the wind and wave state, the engine will shut down when the speed reaches the set shutdown value; when the speed drops to the wind and wave release value, the shutdown is cancelled; this function should be used with caution;

Local/remote control: In the remote control state, remote control can be started;

3. Setting of alarm value and parking value

①. After pressing "Set", the speed and oil temperature window displays PASS 0000;

②. Press "Set" again, the speed and oil temperature window displays C-01 0000;

③ (Pressing "Self-check" will cycle from C-00 to C-26); ... View and modify data (modify data operations as shown below) ..... ④. After data modification, press "Reset" to exit at any time;

Key Functions

1. Activate options and confirm changes

2. ↑ ↓ Number selection (0~9 cycles)

3. ← → Bit selection (circulate from left to right, and can also cycle to the next item)

Speed window display Meaning Oil temperature window display (reference value)

C-02: Status 0000

C-01: Password 0000

C-02: Exit 0000

C-03: Speed teeth 0158

C-04: Pre-supply pressure 0005

C-05: Speed pressure 0550

C-06: Wind and wave speed 1200

C-07: Speed alarm 1650

C-08: Speed stop 1725

C-09: Oil pressure alarm 0025

C-10: Oil pressure stop 0010

C-11: Oil temperature alarm 0095

C-12: Oil temperature stop 9999

C-13: Water temperature alarm 0090

C-14: Water temperature stop 9999

C-15: Voltage alarm 0190

C-16: Reserve 0000

C-17: Oil pressure lower limit 0024

C-18: Oil pressure upper limit 0224