81725-02 Bently Nevada 7200 14 mm Proximitor Sensor
81725-02
81725-02 is a legacy Bently Nevada 7200-series 14 mm Proximitor Sensor calibrated for a 9 m (29.5 ft) combined probe-and-extension-cable system length. 81725-02 accepts one compatible 7200 14 mm probe chain and supplies the signal-conditioning stage. 81725-02 is not a complete proximity transducer system and does not include the probe, extension cable, monitor or field wiring.
Scope note: 81725-02 is only the signal conditioner. Published linear range, scale factor and frequency response apply to the correctly matched complete 7200 14 mm transducer system, not to 81725-02 alone.
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81725-02 decodes exactly in Bently Nevada document 141604-01 as the no-approval 81725 14 mm Proximitor Sensor for a 9 m (29.5 ft) combined electrical system length.
81725-02 must be paired with a compatible 7200 14 mm probe and extension cable whose combined nominal electrical length matches 9 m (29.5 ft). The manufacturer lists 81305-080 as the 8.03 m extension-cable length for the nine-metre chain.
81725-02 is only the signal conditioner. Published linear range, scale factor and frequency response apply to the correctly matched complete 7200 14 mm transducer system, not to 81725-02 alone.
| Manufacturer | Bently Nevada Corporation |
|---|---|
| Part number | 81725-02 |
| Lifecycle | Legacy 7200-series component |
| Component | 14 mm Proximitor Sensor signal conditioner |
| Compatible input | One compatible 7200-series 14 mm probe and matching extension cable |
| Combined system electrical length | 9 m (29.5 ft) |
| Input power | -18 to -24 Vdc at 13 mA maximum |
| Sensor operating temperature | -51.1 to +100 deg C (-60 to +212 deg F) |
| Maximum sensor-to-monitor leadwire | 304.8 m (1,000 ft); consult the manual for frequency roll-off at longer lengths |
| Field-wiring type | Three-conductor shielded cable for signal output and power input |
| Agency approval configuration | No approval prefix; not the CA81725 North American approval version |
| Not included | Probe, extension cable, monitor and field wiring |
| Manufacturer source | BNC 141604-01 Rev. NC (May 2000), archived manufacturer-authored datasheet |
| Complete-system Required matched chain | 81725-02 must be used with the correct 7200 14 mm probe, 14 mm extension cable where required, and matching 81725 Proximitor Sensor. |
| Complete-system Linear range | 4.06 mm (160 mil), from approximately 0.508 to 4.57 mm (20 to 180 mil) target gap |
| Complete-system Recommended gap | 2.54 mm (100 mil) |
| Complete-system Incremental scale factor | 3.94 mV/um (100 mV/mil), +/-16% including interchangeability error under the published conditions |
| Complete-system Linearity | Less than +/-165 um (+/-6.5 mil) deviation from best-fit straight line |
| Complete-system Frequency response | 0 to 10 kHz, +0/-3 dB, with up to 305 m (1,000 ft) of field wiring |
| Complete-system Minimum flat target diameter | 33.0 mm (1.3 in) |
Compatibility statements are limited to the cited manufacturer documentation. Availability, condition and substitution must be confirmed separately.
81725-02 is a legacy Bently Nevada 7200-series 14 mm Proximitor Sensor. 81725-02 is the signal-conditioning component, not the complete probe system.
81725-02 is calibrated for a 9 m (29.5 ft) combined electrical length of probe plus extension cable.
81725-02 accepts one compatible 7200 14 mm proximity probe and the matching 14 mm extension cable required to reach the 9 m (29.5 ft) nominal system length.
81725-02 requires -18 to -24 Vdc and draws 13 mA maximum under the manufacturer-published conditions.
81725-02 has a published Proximitor Sensor operating range of -51.1 to +100 deg C (-60 to +212 deg F).
81725-02 has no approval prefix. 81725-02 must not be represented as CA81725, which is the separate North American approval version.
81725-02 alone does not provide a guaranteed 4.06 mm range. The published range, scale factor and frequency response apply only when 81725-02 is used with the correct matched probe and extension cable.
81725-02 must not be mixed with a different nominal electrical length. The probe plus extension cable connected to 81725-02 must match 9 m (29.5 ft); otherwise the published system performance does not apply.
Send the complete part number, installed-system details, quantity, destination and clear label photos. Availability and condition will be confirmed before quotation.
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