Excites the ds822 displacement sensor and demodulates the returned eddy-current signal.
Key Information
DS822.OD110 is the driver or oscillator-demodulator used in the B&K Vibro ds822 Ex non-contact displacement sensor system. The system measures distance to an electrically conductive target by the eddy-current principle.
The core DS822.OD110 code selects the Ex driver for 5 m or 10 m system lengths. The complete label can add a slash suffix for special requirements or regional approval, so that final suffix must be checked rather than inferred.
Functions
Automatically recognizes the connected 5 m or 10 m nominal system length.
Provides a proportional output for shaft vibration, axial position, eccentricity, phase and speed applications.
Supports hazardous-area measurement chains when every sensor, cable, barrier and approval condition is matched.
Specifications
| Manufacturer | Brüel & Kjær Vibro |
|---|---|
| Core Model | DS822.OD110 |
| Product Type | Ex displacement-sensor driver / oscillator-demodulator |
| Measurement Principle | Non-contact eddy current |
| System Family | ds822 Ex, 2 mm |
| Nominal System Lengths | 5 m or 10 m |
| 25 m Support | Not supported by DS822.OD110; 25 m is limited to ds821.od111 |
| Linear Measurement Range | 2 mm; approximately 0.4 to 2.4 mm gap for the family system |
| Nominal Sensitivity | -8 mV/µm (-203 mV/mil) with the specified reference material |
| Frequency Range | DC to 10 kHz, -3 dB |
| Supply | -24 VDC nominal; -18 to -28 VDC |
| Output | 0 V to approximately supply plus 2 V |
| Driver Temperature Range | -35 to +85 °C for the stated family performance range |
| Target Reference Material | 42CrMo4 / AISI 4140 |
| Approvals Context | ds822 Ex includes ATEX, IECEx and EAC Ex in the documented base approval arrangement |
| Ordering Extension | Slash suffix identifies special requirements or selected regional approval |
| Mounting | Driver can be mounted from either side using the specified adapter |
Installation
- Read the complete DS822.OD110 slash suffix and compare it with the site hazardous-area certificate before ordering.
- Verify the installed ds822 sensor type, extension cable, total length, blue family coding and target material.
- Keep the coaxial connectors clean and hand-tighten until locked; do not alter cable length or mix unmatched family components.
- Provide the specified negative DC supply and retain barrier, grounding, shield and enclosure arrangements from the approved loop drawing.
- Set and verify gap voltage at the machine condition defined by the maintenance procedure, then test static position and dynamic response.
Lifecycle
- Store DS822.OD110 with its complete approval suffix, paired sensor and cable data.
- Do not calibrate the chain against a different target alloy without applying the documented material procedure.
- Inspect cable protection, connectors and driver mounting during outages.
- Trend gap voltage and vibration response so sensor movement, cable damage and electronic drift can be separated.
About IndustryParts
https://www.industryparts.com/Measurement-chain matching comes first
IndustryParts verifies DS822.OD110 against the ds822 Ex sensor, cable length and the complete driver suffix before supply.
- Core driver code retained
- System length checked
- Ex marking compared
FAQ
Why is the slash suffix needed when ordering DS822.OD110?
The core code defines the ds822 Ex driver for 5 m or 10 m systems, while the slash suffix controls special requirements or regional approval variants.
Can DS822.OD110 be used with a 25 m measurement chain?
No. The manufacturer ordering table limits this driver to 5 m and 10 m; the 25 m option belongs to the standard ds821.od111 route.
What should be checked when DS822.OD110 gap voltage is outside the expected range?
Check mechanical gap, target material, sensor and cable family, connector condition, supply voltage and total system length before replacing the driver.
Can a ds821 sensor be mixed with DS822.OD110?
Do not mix standard and Ex family components by appearance; use the complete manufacturer ordering system and approval documents for the assembled chain.
What acceptance test is useful after fitting DS822.OD110?
Record supply, static gap, linear response over an approved movement, dynamic signal quality and monitoring-system alarm behavior.
