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Testo 6441 Compressed Air Flow Transmitter (1/2" line) - 0555 6441
Item #:
0555-6441
Brand:
Testo
Share this product:
0555 6441 Compressed Air Flow Transmitter (1/2" line) by Testo
The compressed air counters testo 6441 to testo 6444 are designed for the measurement, monitoring and recording of compressed air consumption, and therefore also for the determination of leakages in compressed air systems, consumption-based allocation of costs and the implementation of peak load management. Using the compressed air counters testo 6441 to testo 6444, transparency of consumption is created for compressed air, similarly as for the media current, water or gas, thus increasing the motivation of those responsible for the process regarding cost reduction measures and energy savings. The compressed air counters testo 6441 to testo 6444 record norm volume flow according to the calorimetric principle, which means the measurement procedure is independent of the process pressure and does not cause a permanent pressure drop. While the thermal, glass-coated ceramic sensor offers a high level of robustness and fast response times, the integrated inflow and outflow pipes ensure optimum accuracy.
- Measurement of norm volume flow in the measuring range 0.25 to 700 m3/h (DN15 to DN50 or 1/2"-2"); consumption quantity in m3; media temperature in °C
- Highest flexibility thanks to different signal outputs: Analog output 4 to 20 mA (4-wire), Pulse output, 2 switch outputs (parameterizable: consumption or volume flow-dependent, opener, closer, hysteresis, window)
- Built-in totalizer, even without additional analysis unit
- Operating menu with LED display
testo 6441 |
testo 6442 |
testo 6443 |
testo 6444 |
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Measurement parameters |
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| (Norm) volume flow | |||||||
| Selectable units | m3/h; l/min; m3 |
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| Measuring range(1:300)1 | 0.25 to 75 m3/h |
9 to 2750 m3/h |
1.3 to 410 m3/h |
2.3 to 700 m3/h |
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| Accuracy (norm volume flow) |
For compressed air quality classes (ISO 8573: particles-humidity-oil) 1-4-1: ±3 % of meas. value ±0.3 % of final value For compressed air quality classes (ISO 8573: particles-humidity-oil) 3-4-4: ±6 % of meas. value ±0,6 % of final value |
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| Sensor | Thermal, glass-coated ceramic sensor (calorimetric measurement procedure) |
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| Response time | <0.1 sec (for damping parameter = 0), delayable via operating menu (0 to 1 sec) |
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| Temperature | |||||||
| Unit | °C |
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| Measuring range | 0 to +60 °C / +32 to +140 °F |
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| Measurement uncertainty | ±2 K |
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Inputs and outputs |
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| Analog outputs | |||||||
| Output type | 4 to 20 mA (4-wire) freely scalable between zero and measuring range end |
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| Load | max. 500 Ω |
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| Further outputs | |||||||
| Pulse output | Consumption quantity counter (value remains available after reset or power cut due to non-volatile memory),
value 1 or 10 m3, pulse length 0.02 s to 2 s, 24 VDC level |
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| Switch output | 2 switch outputs, parameterizable (consumption or volume flow-dependent, opener, closer, hysteresis, window), loadable
with max. 20 to 30 VDC or 250 mA each, switch status is displayed via 2 LEDs |
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| Supply | |||||||
| Voltage supply | 19 to 30 VDC |
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| Current consumption | <100 mA |
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| Connection | M12 x 1 plug, loadable up to 250 mA, short-circuit-proof (synchronized), reverse-polarity-proof, overload-proof.
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General technical data |
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| Design | |||||||
| Material housing | PBT (GF 20%), diecast zinc, silica-free |
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| Long measurement stretch | 300 mm |
475 mm |
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| Pipe diameter | DN 15 (for 1/2" pipes) |
DN 25 (for 1" pipes) |
DN 40 (for 1 1/2" pipes) |
DN 50 (for 2" pipes) |
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| Weight | 0.9 kg |
1.1 kg |
3.0 kg |
3.8 kg |
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| Display | |||||||
| Material | 4-figure alphanumerical display, two operating buttons, operating menu, LED (4 x green for phys. units, 3 x yellow for display x 1,000 or switch status) |
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| Max. display value norm volume flow | 90 m3/h |
270 m3/h |
492 m3/h |
840 m3/h |
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| Temperature display | 0 to +60 °C, measurement error ±2 K, (+32 to +140 °F) |
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| Miscellaneous | |||||||
| Protection class | IP65/III |
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| EMC | according to guideline 89/336 EEC |
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| Media contact | Materials stainless or galvanized steel, PEEK, polyester, Viton, anodized aluminium, ceramic |
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| Operating conditions | |||||||
| Humidity (sensor) | rel. humidity <90 %RH |
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| Operating temperature (housing) | 0 to +60 °C (+32 to +140 °F) |
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| Storage temperature | -25 to +85 °C (-13 to +185 °F) |
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| Measurement medium | Compressed air, on request also CO2 or N2 |
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| Process pressure | PN 16 (max 16bar/232psi) |
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| Air quality | ISO 8573: recommended classes 1-4-1 |
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