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Testo 6446 Compressed Air Meter - 0699 6446/11
Item #:
0699-6446-11
Brand:
Testo
Share this product:
0699 6446/11 6446 Compressed Air Meter 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. 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.
The version testo 6447 offers everything the testo 6446 provides, in addition the removal of the probe under pressure is possible (patented screw fitting). The larger nominal values refer especially to important compressed air pipelines, often the main supply line after preparation.
- Measurement of norm volume flow in the measuring range 6.7 to 27500 m3/h (DN65 to DN350 or 21/2"-10")
- Exchangeable fitting: Probe removal under pressure possible (testo 6447 only)
- Material selectable between galvanized steel and stainless steel
- 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
- Cleanable sensor
DN 65 (2 1/2") |
DN 80 (3") |
DN 100 (4") |
DN 125 (5") |
DN 150 (6") |
DN 200 (8") |
DN 250 (10") |
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Parameters |
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| (Norm) volume flow | |||||||
| Selectable units | m3/h, l/min, m3/min, m3 |
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| Measuring range1 | 6 to 2000 m3/h |
9 to 2750 m3/h |
15 to 4440 m3/h |
23 to 7000 m3/h |
33 to 10000 m3/h |
58 to 17500 m3/h |
92 to 27500 m3/h |
| 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. Testo recommends the accessory cable order no. 0699 3393 |
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General technical data |
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| Design | |||||||
| Material housing | PBT-GF 20, PC (APEC), Makrolon, V2A (1.4301), Viton |
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| Measurement stretch length | 124 mm |
160 mm |
160 mm |
172 mm |
180 mm |
180 mm |
196 mm |
| Pipe diameter (measurement stretch) | DN 65 (2 1/2") |
DN 80 (3") |
DN 100 (4") |
DN 125 (5") |
DN 150 (6") |
DN 200 (8") |
DN 250 (10") |
| testo 6446 Weight | 8.3 kg |
10.6.kg |
12.7 kg |
20.6 kg |
25.4 kg |
36 kg |
48.4 kg |
| testo 6447 Weight | 9.2 kg |
11.6 kg |
13.7 kg |
21.6 kg |
26.4 kg |
37 kg |
49.4 kg |
| Display | |||||||
| Screen/operation | 4-figure alphanumerical display, two operating buttons, operating menu, LED (4 x green for phys. units, 3 x yellow for
display x 1000 or switch status) |
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| Max. display value norm volume flow | 0 to 2400 m3/h |
0 to 3300 m3/h |
0 to 5320 m3/h |
0 to 8400 m3/h |
0 to 12000 m3/h |
0 to 21000 m3/h |
0 to 33000 m3/h |
| Temperature display | 0 to +60 °C |
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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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