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Understanding Transducer Types and Their Applications
The OUF-W Series offers three transducer types to suit diverse industrial needs. Choosing the right transducer is critical for accuracy, durability, and ease of installation.
Below, we break down their pros, cons, and ideal use cases:
|
Type |
Pros |
Cons |
Best For |
Picture |
|
Clamp-On |
Non-invasive, no pipe modification |
Lower accuracy in noisy environments |
Temporary setups, retrofitting, DN20–6000 pipes |
|
|
Insertion |
High accuracy, works with scaled pipes |
Requires drilling, pressure limitations |
Permanent installations, DN50–6000 pipes |
|
|
Inline |
Maximum precision, high-pressure tolerance |
Requires cutting/welding pipe |
New installations, DN15–1000 pipes |
|
Step 1: Match Transducer to Pipe Size & Fluid Properties
Clamp-On Transducers
• Models:
o TS-2: DN20–100 (small pipes, -30°C to 90°C).
o TM-1: DN50–700 (medium pipes).
o TL-1: DN300–6000 (large pipes).
• High-Temp Variants: TS-2-HT/TM-1-HT/TL-1-HT (-30°C to 160°C).
Insertion Transducers
• Models:
o TC-1: Standard (DN50–6000, -30°C to 160°C).
o TC-2: Extended range for thick-walled pipes.
o TP-1: Parallel insertion for DN200+ pipes.
• Pressure Limit: 1.6MPa (customizable for higher pressures).
Inline Transducers
• Models: Standard flanged units (DN15–1000).
• Pressure Limit: Up to 4.0MPa (customizable).
Step 2: Temperature Transducer Selection
For heat measurement, pair flow transducers with PT100 temperature sensors:
|
Type |
Model |
Cutoff Water? |
Pipe Size |
|
Clamp-On |
CT-1 |
No |
≥DN50 |
|
Insertion |
TCT-1 |
Yes |
≥DN50 |
|
Insertion (Pressure) |
PCT-1 |
No |
≥DN50 |
|
Small Pipe Insertion |
SCT-1 |
Yes |
<DN50 |
Step 3: Environmental and Operational Considerations
1. Pipe Material:
o Clamp-on transducers work best on steel, PVC, or copper. Avoid uneven surfaces (e.g., concrete).
2. Fluid Type:
o Use high-temperature transducers (HT models) for steam or hot oils.
3. EMI Sources:
o Keep transducers >3m from VFDs or high-voltage cables. Use shielded cables and grounding.
4. Flow Profile:
o Install 10D downstream from pumps/valves for stable flow (D = pipe diameter).
Common Mistake:
Using clamp-on transducers on heavily scaled pipes reduces signal strength (Q < 60). Opt for insertion models instead.
Step 4: Validation and Calibration
Post-installation, verify performance using:
• M90: Signal strength (>60) and Q value (>60).
• M91: Transmission time ratio (97–103%).
• M92: Compare fluid sound velocity to reference values.
Unsure which transducer fits your application? Please chat with our engineers for a free consultation!
Next in the Series
In Article 5: Installing Clamp-On Transducers for OUF-W Flowmeters, we’ll cover step-by-step V/Z-method installation, surface preparation, and signal optimization.
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