438D Vibration Switch (inch/sec)
An Economical Machine Monitor with Remote Sensor
More than a simple switch, the 438D is a single-channel vibration monitor that can be located in a centralized location, remote from operating equipment. The 438D is on guard ’round the clock, with cost-effective protection of motors, pumps, fans and a wide range of other rotating equipment. It provides continuous digital readout of the vibration level, and signals when a predetermined setpoint level has been reached.
Download Product Literature
Measurement mode | Velocity (in/sec) |
Frequency range | Dependent on tranducer type and any special filtering (See “Transducer Types” below) |
Analog output | 4 – 20 mA DC, proportional to full scale range |
Input power | 110V or 220V AC, field selectable |
Setpoints | 2, adjustable from 0-100% of full scale |
Indicators | LEDs: yellow for “Alarm”, red for “Trip” |
438D operating temperature | -20 to +160F (-29 to +71C) |
Enclosure | NEMA 4, with hinged cover |
Mounting | Flat surface, 8-3/4″ x 4″ (22.2 x 10.2cm) bolt pattern |
Cable entry | Transducer cable entry and cable grip provided; power and control cable entry by customer. |
Full scale range | 0 – 1 or 0 – 3 in/sec |
Alarm & trip setpoints | 0 to 100% of full scale range |
Relay time delay | 0 to 20 Sec per relay |
Relay state | Normally de-energized (open below setpoint) or normally energized (closed below setpoint) |
Relay configuration | Latching or non-latching |
Relay inhibit | Inhibits relay operation during start-up or machine maintenance |
Input power | 110V or 220V AC |
4033-400 (Velocity) | Frequency range: 20 to 1,500 Hz |
4033-500 (Velocity) | Frequency range: 20 to 1,500 Hz |
4034 (Velocity) | Frequency range: 12 to 1,000 Hz |
4071A (Acceleration) | Frequency range: 2.1 to 3,500 Hz |
4073 (Acceleration) | Frequency range: 0.8 to 10,000 Hz |
|
|