Customer need
Test rigs and technical applications need flow information to compare settings and produce repeatable records.
NOVEL · Products and system solutions
TSI 4000 Series Analog and Digital Mass Flow Meters
Product Overview
Thermal mass flow measurement with absolute pressure and temperature readings. Compare range, connection and gas options across the 4040/4043/4045 and 4140 families.
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Match gas-flow measurement to the test or process
TSI 4000 Series Analog and Digital Mass Flow Meters: selection starts with the measurement or system output your team needs for its decision.
Product output
The gas, flow and additional channels supported by the selected model provide numerical data for the application.
Decision supported
Select range, gas compatibility, pressure drop, connections and outputs, distinguishing reference and actual volumetric conditions.
Measurement and Integration
Fast thermal measurement
Platinum film sensing provides a 4 ms response with low pressure drop and no moving measuring elements.
Analog and digital output
Use analog flow output for control systems; transfer flow, absolute pressure and temperature via RS-232. Volume functions are accessed through serial commands.
Match gas and range
Gas calibration, lower flow limit and connection dimensions vary by model. Evaluate both reading-percentage and minimum-error terms in the relevant specification.
Applications and Selection
Suitable for laboratory test benches, gas-flow verification and instrument development. Distinguish actual volumetric flow from mass/standard flow reported at reference conditions. For sampling pumps, verify the calibration method’s reference conditions and pressure drop of the complete sampling train.
Models, Ranges and Supported Gases
| Model | Flow range | Connection | Gas calibration |
|---|---|---|---|
| 4040 | 0–300 L/min | 22 mm ISO | Air / O₂ / N₂ |
| 4045 | 0–300 L/min | ¾ in | Air / O₂ / N₂ |
| 40401 | 0–300 L/min | 22 mm ISO | Air |
| 4043 | 0–200 L/min | ½ in | Air / O₂ / N₂ |
| 41401 | 0.01–20 L/min | ¼ in | Air |
| 4140 | 0.01–20 L/min | ¼ in | Air / O₂ / N₂ |
| 4143 | 0.01–20 L/min | ⅜ in | Air / O₂ / N₂ |
| 41403 | 0.01–20 L/min | ¼ in | N₂O / Air / O₂ / N₂ |
| 41433 | 0.01–20 L/min | ⅜ in | N₂O / Air / O₂ / N₂ |
Connections and Accessories
| Part number | Accessory |
|---|---|
| 8918-EC | Power adapter |
| 1303584 | 8-pin mini-DIN analog output cable |
| 1303583 | Computer interface cable |
| 1602317 / 1602300 / 1602345 | Inlet HEPA filter options selected for connection and pressure drop |
| 6017501 | 22 mm male/female HEPA filter |
| 4199 | Battery pack |
| 1319176 | Hard case for 4040/4043/4045 |
Frequently Asked Questions
What information is needed to select TSI 4000 Series Analog and Digital Mass Flow Meters?
Describe the measurement or communication task, operating environment, required range or capacity and recording needs. NOVEL can help review the model and configuration information on this page.
Where can I find accessories and technical documents?
Review the specifications, documents and any accessories sections on this page. Include model, quantity and intended use in your quotation request, and confirm compatibility before ordering.
Manufacturer and Technical Sources
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