Testo, 0555 6441 6441 Compressed Air Counter (DN15)

  • Brand # Testo
  • Part # 0555 6441
  • Model # 6441
  • Condition
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Testo, 0555 6441, 6441 Compressed Air Counter (DN15) for 0.25 to 75 m3/h

In industrial companies, compressed air is an important source of energy, but one which can also incur high costs. Precise measuring and control technology creates transparency when it comes to compressed air consumption and can help you save energy, reduce costs and implement a targeted environmental management system (e.g. as per ISO 50.001 or ISO 14.001).
The testo 6441 compressed air meter enables you to carry out accurate compressed air consumption measurements, consumption and leak monitoring and flow measurements in your compressed air system. The compressed air meter can also be used to carry out a peak load analysis in order to determine whether you are generating compressed air of sufficient capacity. Overall, these measures can help you find potential for savings or prevent unnecessary investment costs.

Features

  • Transmitter with selectable signal outputs: analog output, pulse output, 2 switching outputs
  • Integrated totalling function (totaliser) for calculating the total consumption
  • High accuracy: defined inner diameter (DN15) enables adjustment to standard volumetric flow
  • Easy to install and to operate

Overview of the technical advantages offered by the testo 6441 compressed air meter

The testo 6441 compressed air meter is also a transmitter, which converts the measured parameter into a standardized electrical signal. The transmitter can therefore be integrated into systems (e.g. compressed air systems), making it a key instrument in measuring and control technology. The testo 6441 compressed air meter also offers the following advantages:
  • Ultimate flexibility with a variety of signal outputs: analog output, pulse output, 2 switching outputs. You will therefore be equipped for any kind of application, whether that is consumption measurement, consumption or leak monitoring or even flow measurement
  • Integrated totalling function: the practical totaliser means that no additional analysis units are needed to calculate the total consumption
  • Ultimate accuracy: the precisely defined inner diameter (DN15) enables adjustment to standard volumetric flow, providing a high degree of measuring accuracy. This is an advantage compared with standard penetration probes, which calculate volume flow on the basis of measured flow and indicated pipe diameter - a procedure that is more vulnerable to error than measurement using the compressed air meter
  • Easy operation with a high degree of flexibility: parametrization of signal outputs, switching of physical units, signal delay, signal attenuation are all possible
  • Measurement according to the calorimetric principle: no pressure loss during measurement
  • Other advantages: no temperature compensation required, quick response time, robust sensor, optimized accuracy thanks to integrated inflow and outflow sections

Specification

Measurement parameters (Norm) volume flow
Selectable unitsm3/h; l/min; m3
Measuring range (1:300)10.25 to 75 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
Sensor
Thermal, glass-coated ceramic sensor (calorimetric measurement procedure)
Response time<0.1 sec (for damping parameter = 0), delayable via operating menu (0 to 1 sec)
Temperature Unit°C
Measuring range of Temperature0 to +60 °C / 32 °F to +140 °F
Inputs and outputs, Analog outputs
Output type4 to 20 mA (4-wire) freely scalable between zero and measuring range end
Loadmax. 500 Ω
Pulse outputConsumption quantity counter (value remains available after reset or power cut due to non-volatile memory), value 1 or 10m3, pulse length 0.02 s to 2 s, 24 VDC level
Switch output2 switch outputs, parameterizable (consumption or volume flow-dependent, opener, closer, hysteresis, window), loadablewith max. 20 to 30 VDC or 250 mA each, switch status is displayed via 2 LEDs
Voltage supply19 to 30 V DC
Current consumption<100 mA
ConnectionM12 x 1 plug, loadable up to 250 mA, short-circuit-proof (synchronized), reverse-polarity-proof, overload-proof
General technical data Design
Material housingPBT (GF 20%), diecast zinc, silica-free
Long measurement stretch11.81 in
Pipe diameterDN 15 (for 1/2" pipes)
Weight1.98 lb
Display
Material4-figure alphanumerical display, two operating buttons, operating menu, LED (4 x green for phys. units, 3 x yellow fordisplay x 1,000 or switch status)
Max. display valuenorm volume flow90 m3/h
Temperature display0 to +60 °C, measurement error ±2 K, (+32 to +140 °F)
Parameterization2 operating buttons
Measurement stretch:thread (both sides)/materialR 1/2, outer threadStainless steel 1.4301
Protection classIP 65/III
EMCaccording to guideline 89/336 EEC
Media contactMaterials stainless or galvanized steel, PEEK, polyester, Viton, anodized aluminium ceramic
Operating conditions
Humidity (sensor)re. humidity <90 %RH
Operating temperature (housing)0 to +60 °C (+32 to +140 °F)
Storage temperature-25 to +85 °C (-13 to +185 °F)
Measurement mediumCompressed air
Process pressurePN 16 (max 16bar/232psi)
Air qualityISO 8573: recommended classes 1-4-1
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