Instruction manual for turbine tachometer

WZ-3CIntelligent transient tachometer

1、 Introduction:

WZ-3CIntelligent transient tachometeradoptARMIntelligent speed monitoring and protection instrument as the core, matched withLH510Magnetic reluctance speed sensorLH520Gear speed sensor can measure the speed and linear velocity of various rotating machinery axles, gears, and racks. Suitable for rotating mechanical devicesTSIThe system design can be widely applied in industries such as power, machinery, chemical, metallurgy, etc. Provide multiple parameter measurements and early fault prediction for the safe operation of rotating machinery.

2、 Main functions:

Monitoring and protection of the rotational speed of rotating machinery such as steam turbines, coal mills, fans, reducers, water pumps, centrifuges, balancing machines, and air compressors.

3、 Function Description:

1The measured values and alarm set values can be separately located atLEDDisplayed on the digital tube.

2When the alarm setting value is exceeded, the alarm indicator light will turn on, and at the same time, a switch signal will be output on the rear panel to protect the monitored equipment. The alarm setting will be adjusted for delay and range1-60Second, to prevent on-site interference from causing false alarms..

3Equipped with a current output interface, it can be connected to computersDCSThePLCConnect devices such as systems and paperless recorders.

4It has power up and power down detection functions, sensor disconnection detection functions, and can also cut off alarm and shutdown output circuits, effectively suppressing instrument false alarms.

4、 Electrical indicators:

1Input signal: acceptableLH510Magnetic reluctance speed sensor signal or gear speed sensor signal

2Waveform: sine wave or pulse

3Range:1-9999rpm

4Display

Display mode: Four digits0.8inchLEDdigital display

Display accuracy:1rpm

5、 齿数：1-255arbitrary

6Current output:4-20mAActive, output load ≤500Ω

7Alarm point setting:0full scale

8Alarm relay: Node capacity7A/250VAC, normally open contact, sealing: epoxy resin

9Working power supply:AC220V±10% 50Hz±5%

5、 Physical indicators:

Overall dimensions:

Disk mounted table:160(Width) ×80(High) ×160(Deep)mm

Hole size: 152(Width) ×76(High)mm

Hanging Wall Table: Width190X high290X thickness92（mm）；

Installation size: Bottom170X high272（mm）

6、 Environmental indicators:

1Temperature Degree: -10℃ to+60℃, relative humidity ≤95%

2Operating environment: no corrosive or strong magnetic fields around, etc

7、 Ordering Guide:

Disk mounted table:WZ-3C-AXX-BXX-CXX

Range selectionAXX：01-0～3500rpm

02-0～4000rpm

03-0～5000rpm

04-Other ranges

current outputBXX：01-4～20mA

02-0～10mA

齿数CXX：01- 1tooth

02- 60tooth

03-Other tooth numbers