I. Model Meaning

7200: 7200 series platform

RV: Radial Vibration (radial vibration)

R: Single plane / single channel (different from RVXY - R: dual planes)

Full name: 7200-RV-R / 72208-01

II. Function Positioning

Purpose: To monitor the radial vibration (peak-to-peak) of shafts, used for protection of steam turbines, fans, compressors, etc. rotating machinery.

Channel: 1 input (electro-vibration probe, such as 7200-21508 + 18745 preamplifier).

Display: Panel with analog pointer meter + LED alarm light, local direct reading of vibration value.

Output:

4–20mA analog quantity (into DCS)

Alarm / Hazard Relay (dry contact) 

III. Differences from 72052‑01 (Very crucial)

7200‑RV‑R (7200‑RVR)

Analog circuit, single channel

Pointer display, no digital communication

Old model, discontinued for a longer time, fewer spare parts, higher price

72052‑01

Digital circuit, 4 channels

Depends on 72027‑03F for display/configuration

Later model of the same series, with slightly more spare parts

IV. Common alternatives (Upgrade to 3500)

Direct upgrade card: 3500/40M (7203953‑01) — 4-channel displacement/vibration, digital, with communication

Sensor: Can directly use the original 7200 probe + preamplifier (compatible with 3500)