DF9011 Precision Transient Speedometer

DF9011 Precision Transient Speedometer

DF9011 Precision Transient SpeedometerConnect DZ6100 magnetic resistance speed sensor and DZ6200 gear speed sensor to monitor the speed of the unit. The application of microprocessor chips for signal processing ensures accurate measurement, stable performance, and the ability to expand functions according to user needs. One of the dangerous situations for rotating machinery, especially steam turbines, is a sudden increase in speed, which can have catastrophic consequences. The measurement of speed increase and decrease during unit start-up and shutdown, as well as how to quickly pass the critical speed, are extremely important and mainly suitable for monitoring and protecting the speed of rotating machinery in industrial sectors such as power, petroleum, and chemical engineering. This device is highly intelligent, capable of full panel operation, suitable for long-term online monitoring, and does not require on-site maintenance.

Main functions
Monitoring and protection of shaft speed for rotating machinery such as steam turbines, water turbines, compressors, and blowers

Function Description:

1. It has a speed measurement display function, with a maximum speed of 99999 revolutions per minute and a five digit digital display.
2. Alarm function: When the measured speed exceeds any alarm setting value, the corresponding alarm indicator light on the front panel will light up, and a switch signal will be output on the rear panel to protect the monitored equipment.
3. The alarm value, number of teeth, and time can be set through the front panel buttons.
4. It has a storage function for speeding events for future reference.
5. It has an indication function for sensor or input circuit faults.
6. Equipped with self checking function
7. Equipped with voltage and current output interfaces, it can be connected to computers, DCS, PLC systems, paperless recorders and other equipment.

Technical Specifications:

1. Input signals: DZ6100 magnetic resistance speed sensor, DZ6200 gear speed sensor, sine wave or pulse input, input voltage effective value 0.3-20V
2. Display mode: 3-digit digital display, ± 0.02% × n (n is the displayed value of the display instrument r/min) ± 1 character
3. Measurement range: 1 to 99999 revolutions per minute,
4. Output interface: Current: 4-20mA, load ≤ 500 Ω, voltage: 1-5VDC, load ≥ 5K Ω
4. Alarm contact capacity: AC220V/3A, DC28V/3A
6. Working environment: Temperature: 0-55 ℃ Relative humidity: ≤ 95%
7. Working power supply: AC 220VAC ± 10% 50Hz power consumption ≤ 10W
8. Installation method: disc type
9. Overall dimensions: 160 (width) x 80 (height) x 250 (depth) mm
10. Hole size: 152 (width) × 75 (height) mm

Ordering Guide:Dongqi Precision Transient Speedometer

The DF9011 intelligent speed monitor must be equipped with DZ6100 reluctance speed sensor and DZ6200 gear speed sensor
2. Selection code:
DF9011—A □□—B□□—C□□—D□□—E□□
8800-S—A □□—B□□—C□□—D□□—E□□

Range selection A □□:
Current output B □□:
0 1—— 4～20mA
Sensor selection C □□:
0 1- DZ6100 Magnetic Resistance Speed Sensor
0 2- DZ6200 gear speed sensor
Alarm delay D □□:
0 1-0.1 seconds
0 2-1 second
0-3 seconds
Number of teeth selection E □□:
0 1-48 teeth
0 2 to 60 teeth