Basic Information

This belongs to the 7200 older TSI system (not the 3500 series), which has been discontinued (EOL), and is only available as second-hand / refurbished / in stock.

Structure: 19-inch rack-mounted, approximately 3U high; the front panel features analog pointer meters + alarm / danger LEDs, and the rear panel has wiring connections.

It is of the same series but a different version from the one you just checked (72870-03), and the functions are basically the same. 

Function and Positioning

Dual-channel (X/Y) independent monitoring: Receives 3300 series eddy current probes to measure shaft vibration, shaft displacement, and eccentricity.

Hardware Protection: Each channel has independent alarms (Alert) + danger (Danger) relays, directly connected interlock shutdown, not relying on software.

Local Display: Pointer meter real-time reading, LED status indication, suitable for on-site inspection.

Core Parameters

Channels: 2 channels (X/Y)

Input: Eddy current sensors (such as 33010x)

Range: Commonly 0–250 μm (0–10 mil)

Accuracy: Full scale ±1%

Output: Relay contacts (alarm / danger)

Power Supply: ±15V DC (7200 rack power supply)

Status:停产， spare parts available

Compatibility and Replacement

Compatible： 7200 rack， 72870 backplane， 3300 series eddy current probes

Replacement： 3500/40 (72951-xx) 4-channel vibration monitoring module (mainstream upgrade model of 3500 system)