Define the measurement question
Determine what to measure and which process decision the result will support.
Biopharma · APPLICATION GUIDE
Sampling & Process Sensors
Design contamination-resistant sampling together with representative measurement.
Review selection pointsDiscuss this applicationFIELD APPLICATION & FLOW
See the application in its industrial setting.
Review product locations and fluid paths.
APPLICATION IN CONTEXT
- Process vessel
- Process sensor
- Closed sampling
- Analysis area
- Control/record
Connections to review
- 01 → 03 Process vessel → Closed sampling
- 03 → 04 Sampling/analysis link · Platform-specific review relationship
- 02 → 05 Process sensor → Control/record
- 01 → 02 Measurement point · Platform-specific review relationship
Sample-liquid paths and sensor signals are distinct. Record measurement location, calibration, sampling time and analysis delay.
A conceptual illustration created to explain equipment and application locations. It is not an actual product photograph, installation photograph or piping/wiring design.
Connection principles and operating/test methods
Process liquid, samples, and measurement signals
FluidMeasurement / control
Scroll horizontally to see the complete flow.
The fluid-sampling branch and electrical measurement signal are shown separately. Review aseptic connections, dead volume, analytical delay, and sensor calibration together.
These conceptual views explain flow direction. Actual piping, wiring and physical flow rates require a separate design.
01 — PROCESS
Where does each step fit?
Define the intended use and conditions to identify the required role of each item.
Configure sampling and measurement
Review wetted components, aseptic connections, dead volume, and sensor location.
Connect analysis with data
Record sampling time, analysis delay, and calibration history, and compare results.
02 — SELECTION
What should be selected and verified?
Sampling results are affected by the container, sampling location, and time until analysis. pH and gas analysis, microbial testing, and pressure and flow monitoring each require configurations and calibration suited to their purpose.
Scroll horizontally to review all columns.
| Process objective | Step to review | Selection evidence |
|---|---|---|
| pH and dissolved gases | Sampling and analysis methods | Changes caused by air contact, bubbles, and analysis delays |
| Microbial and product analysis | Aseptic sampling | Container compatibility, representativeness, connections, and residual volume |
| Pressure and flow rate | Inline sensors | Range, accuracy, temperature compensation, signal, and wetted materials |
| Data quality | Calibration and comparative measurements | Differences from offline references, zero offset, and drift |
Compare actual operating conditions with supplier evidence and confirm the required performance and validation scope.
03 — OPERATING CHECKS
Use operating data to identify improvements.
Standardize the time until analysis
Cell metabolism and gas exchange can change measured values even after sampling.
Confirm sample representativeness
Review whether liquid held in the piping represents the overall process and determine the flushing required.
Manage sensor use history
Maintain linked records of sensor condition before and after sterilization, calibration values, operating time, and replacement criteria.
04 — QUESTIONS
Frequently asked questions
Will results remain the same if the sampling container is changed?
Differences in gas exchange, adsorption, and residual volume may affect analytical results, so a comparison is needed.
Does a difference between inline sensor and laboratory readings indicate a malfunction?
First check differences in temperature, location, sampling delay, calibration, and measurement principle.
05 — APPLICATION REVIEW
Prepare the conditions for a technical discussion.
These details help narrow the configuration and the evidence to review.
- Measurement parameters and decision objective
- Sampling location, frequency, and required volume
- Time until analysis and storage conditions
- Sterilization and wetted material requirements
- Measurement range, output, and calibration method