18745-03 Bently Nevada 7200 5 and 8 mm Proximitor
18745-03
18745-03 is a legacy Bently Nevada 7200 Proximitor for compatible 5 mm and 8 mm proximity transducer systems. 18745-03 option 03 is calibrated for a 5 m (16.4 ft) combined probe-and-extension-cable system length. 18745-03 is the signal-conditioning component only, not a complete proximity transducer system; the probe, extension cable, monitor and field wiring are separate.
Scope note: 18745-03 does not include a probe, extension cable, monitor or field wiring. Complete-system range, scale factor, linearity and frequency response must not be assigned to 18745-03 alone.
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18745-03 is listed in OEM document L5001 as the 18745 Proximitor option for a 5 m (16.4 ft) combined probe-and-extension-cable system length.
18745-03 is the common Proximitor type used by the legacy 7200 5 mm and 8 mm systems. The installed probe and extension cable must form the electrical length matched to 18745-03.
18745-03 does not include a probe, extension cable, monitor or field wiring. Complete-system range, scale factor, linearity and frequency response must not be assigned to 18745-03 alone.
| Manufacturer | Bently Nevada Corporation |
|---|---|
| Part number | 18745-03 |
| Lifecycle | Legacy 7200-series component |
| Component | 5 mm and 8 mm Proximitor signal conditioner |
| Combined probe and extension-cable system length | 5 m (16.4 ft) |
| Input power | -17.5 to -26 Vdc at 12 mA maximum |
| Operating temperature | -51 to +100 deg C (-60 to +212 deg F) |
| Height | 50.8 mm (2.00 in) maximum |
| Length | 79.2 mm (3.12 in) |
| Width | 60.5 mm (2.38 in) |
| Weight | 0.22 kg (7.9 oz) |
| Field wiring | Three-conductor shielded cable between Proximitor and monitor; OEM literature permits up to 1,000 ft to a standard Bently Nevada monitor |
| Hazardous-area boundary | No exact approval configuration is encoded by this displayed MPN in L5001; verify the installed nameplate and certificate set |
| Not included | Probe, extension cable, monitor and field wiring |
| Manufacturer source | Bently Nevada L5001 (04/90), OEM ordering literature archived by NASA NTRS |
| Complete-system Required chain | 18745-03 must be used with a compatible 7200 probe, extension cable where required, and 18745 Proximitor whose lengths form the specified 5 m or 9 m system. |
| Complete-system Calibrated range | 2.0 mm (80 mil), beginning at approximately 0.25 mm (10 mil) from the probe face |
| Complete-system Scale factor | 7.87 V/mm (200 mV/mil), +/-4% when calibrated as a system; within +/-9.5% including interchangeability error |
| Complete-system Linearity | Within 0.02 mm (0.8 mil) when calibrated as a system; within 0.06 mm (2.3 mil) including interchangeability error |
| Complete-system Frequency response | 0 to 10 kHz; -5% at 10 kHz |
| Complete-system Measurement principle | Non-contacting eddy-current, gap-to-voltage displacement measurement |
| Complete-system Legacy monitor compatibility | The OEM literature identifies complete 7200 systems as compatible with 3300 and 9000 Monitoring Systems |
Compatibility statements are limited to the cited manufacturer documentation. Availability, condition and substitution must be confirmed separately.
18745-03 is a legacy Bently Nevada 7200 Proximitor used as the signal conditioner for compatible 5 mm and 8 mm probe systems. 18745-03 is not a complete transducer chain.
18745-03 is calibrated for a 5 m (16.4 ft) combined electrical length of probe plus extension cable.
18745-03 is the shared Proximitor type for compatible legacy 7200 5 mm and 8 mm probes, provided the matched cable length agrees with 18745-03.
18745-03 uses -17.5 to -26 Vdc at 12 mA maximum under the OEM-published conditions.
18745-03 has an OEM-published Proximitor operating range of -51 to +100 deg C (-60 to +212 deg F).
18745-03 does not include a probe or extension cable. 18745-03 is only the Proximitor signal-conditioning component; the monitor and field wiring are also separate.
18745-03 alone does not guarantee a 2 mm range. The OEM range, scale factor, linearity and frequency response apply only when 18745-03 is used in the correctly matched complete 7200 system.
When replacing 18745-03, verify the full 18745-03 nameplate, the 5 m (16.4 ft) calibration, probe family, combined cable length, monitor configuration and any required hazardous-area certificate.
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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