By Ms.Jin | 12 December 2025 | 0 Comments
HZS-04 Tachometer (HOUDE METER )
HZS-04 tachometer (HOUDE METER)
Summary
For rotating machinery (particular in steam turbine), one of the
most dangerous situations is speed suddenly soaring, and there may
have disastrous consequences. It is extremely important for measur-
ing raise or fall speed when start or shutdown the unit and how to
quickly through the critical speed.
HZS-04 tachometer is an intelligent speed monitor which uses
MCU as the core. It is connected with magnetoresistive sensor to
measure the speed of monitoring unit.The monitor’s function include:
speed monitoring, dual alert set points, the analog current output and
so on. It suits for power, petroleum, chemical and other industrial
sectors speed rotating machinery monitoring and protection, such as
steam turbines, fans, compressors, motors, and pumps and so on.
Function description
● Intelligent processing: alarm, danger, number of teeth, range
value can be set through the panel key.
● There are alarm and danger indicator lights on the front panel,
and wiring terminals on the back panel provide switching output.
● Alarm delay adjustment range 0-255 seconds, to prevent field
Summary
For rotating machinery (particular in steam turbine), one of the
most dangerous situations is speed suddenly soaring, and there may
have disastrous consequences. It is extremely important for measur-
ing raise or fall speed when start or shutdown the unit and how to
quickly through the critical speed.
HZS-04 tachometer is an intelligent speed monitor which uses
MCU as the core. It is connected with magnetoresistive sensor to
measure the speed of monitoring unit.The monitor’s function include:
speed monitoring, dual alert set points, the analog current output and
so on. It suits for power, petroleum, chemical and other industrial
sectors speed rotating machinery monitoring and protection, such as
steam turbines, fans, compressors, motors, and pumps and so on.
Function description
● Intelligent processing: alarm, danger, number of teeth, range
value can be set through the panel key.
● There are alarm and danger indicator lights on the front panel,
and wiring terminals on the back panel provide switching output.
● Alarm delay adjustment range 0-255 seconds, to prevent field
Summary
For rotating machinery (particular in steam turbine), one of the
most dangerous situations is speed suddenly soaring, and there may
have disastrous consequences. It is extremely important for measur-
ing raise or fall speed when start or shutdown the unit and how to
quickly through the critical speed.
HZS-04 tachometer is an intelligent speed monitor which uses
MCU as the core. It is connected with magnetoresistive sensor to
measure the speed of monitoring unit.The monitor’s function include:
speed monitoring, dual alert set points, the analog current output and
so on. It suits for power, petroleum, chemical and other industrial
sectors speed rotating machinery monitoring and protection, such as
steam turbines, fans, compressors, motors, and pumps and so on.
Function description
● Intelligent processing: alarm, danger, number of teeth, range
value can be set through the panel key.
● There are alarm and danger indicator lights on the front panel,
and wiring terminals on the back panel provide switching output.
● Alarm delay adjustment range 0-255 seconds, to prevent field
interference caused by false alarm.
● There is a current output terminal directly proportional to the
conversion value on the rear panel for recording output.
Technical index
● Power supply: 220VAC±10%, 50Hz, maximum power
consumption 10W
● Input:
Signal: Receives the signal from the speed sensor or Hall sensor
Waveform: sine signal or pulse signal
Amplitude: 0.08~30VAC (valid value)
● Measuring range: 0~9999rpm
● Display:
Display mode: four-bit 0.8 inch LED digital display
Photocell LED indicator: alarm, danger red LED
Measurement accuracy: ±1rpm
● Number of gears: 1~255 gears
● Current output: 4~20mA, output load ≤500Ω
● Alarm range: 0~100% full scale
● Relay output: normally open contact, node capacity
5A/250VAC or 5A/30VDC, epoxy seal
● Temperature range:
Operating time: 0℃~+65℃
Storage time: -30℃~+80℃
● Relative humidity: up to 95%, non-condensing
● Dimensions: 163×83×221mm
● Hole size: 152+1×77+1mm
● Weight: about 1.2kg
HJX-Y intelligent key phase Monitor （）Wuxi Houde Automation Meter Co.,Ltd）
HZD-RSDC series overspeed protection device
Leave a Reply
Your email address will not be published.Required fields are marked. *