Flow transmitter testo 6456 perspective forward

testo 6456 – flow rate transmitter 9 … 27 590 m³/h

Flow rate measurement - 9 ... 27 590 m³/h

  • Suitable for large pipe diameters DN 65 - 250
  • Direct compressed air measurement with simultaneous display of three measured values thanks to standard TFT display
  • Dual analog output, or pulse and analog output

Delivery time: 5-10 working days

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Delivery time: 5-10 working days

SKU: 0555 6456 Categories: , , ,

The testo 6456 flow transmitter is available in versions for pipe diameters DN 65 to DN 250 and is used for measuring, monitoring and reporting compressed air consumption and thus also detecting leaks in compressed air systems, cost allocation according to consumption and peak load management.

The testo 6456 flow transmitter measures the standard air flow in compressed air according to the calorimetric principle, which means that the measurement method is independent of the process pressure and does not cause any permanent pressure loss.

Flexible: Suitable for large pipe diameters DN 65 – 250
Clear overview: Direct compressed air measurement with simultaneous display of three measured values thanks to the standard TFT display.
Best system integration: Dual analog output, or pulse and analog output.
Optional: With built-in pressure measurement (with output option F02)
Four measurement parameters in one instrument: flow rate, totalizer, temperature and pressure (with output option F02).

See the data sheet under the Download tab for full technical data.

Included in delivery

testo 6456 flow transmitter

Airflow measurement/adjustment range
Measurement rangeDN 65 (2 ½“): 139 ... 33 510 l/min; 0,6 ... 143 m/s;9 ... 2 011 m³/h
DN 80 (3“): 192 ... 46 150 l/min; 0,6 ... 143 m/s;12 ... 2 769 m³/h
DN 100 (4“): 324 ... 77 780 l/min; 0,6 ... 143 m/s; 20 ... 4 667m³/h
DN 125 (5“): 490 ... 117 600 l/min; 0,6 ... 143 m/s; 30 ... 7 057 m³/h
DN 150 (6“): 717 ... 172 100 l/min;0,6 ... 143 m/s;43 ... 10 320 m³/h
DN 200 (8“): 1 215 ... 291 400 l/min;0,6 ... 143 m/s;73 ...17 480 m³/h
DN 250 (10“): 1 917 ... 459 800 l/min;0,6 ... 143 m/s;115 ... 27 590 m³/h
Temperature coefficient±0.07% of measured value
Accuracy
(measuring range)		Class 151: ± (3% mv. 0.3% final);
Repeat accuracy±1.5% of measured value
Max display0 ... 120% final
ResolutionDN 65 (2 ½“): 0,8 l/min; 0,04 m3/h
DN 80 (3“): 1,05 l/min; 0,005 m3/h
DN 100 (4“): 1,78 l/min; 0,009 m3/h
DN 125 (5“): 2,7 l/min; 0,013 m3/h
DN 150 (6“): 3,9 l/min;0,02 m3/h
DN 200 (8“): 6,7 l/min; 0,033 m3/h
DN 250 (10“): 10,5 l/min; 0,053 m3/h
Low Flow Shutdown LFCCan be set by user. Factory setting 0.13% of final v.
Measurement/adjustment area for totalizer
Measurement range0 ... 100 000 000 m³ | 0 ... 353 146 667,2 scf
Max display0 ... 100 000 000 m³ | 0 ... 353 146 667,2 scf
Pressure measurement/adjustment range (only with output option F02)1
Measurement range-1 ... 16 bar
Max display-1 ... 20 bar
Resolution0,05 bar
Temperature measurement/adjustment range
Measurement range-10 ... 60 °C/14 ... 140 °F
Max display-24 ... 74 °C/-11,2 ... 165,2 °F
Resolution0,2 °C / 0,5 °F
Scope of use
MediaCompressed air
Average temperature-10 ... 60 °C/14 ... 140 °F
Pressure loadmax. 16 bar (> DN200 14 bar)
Electrical data
Operating voltage18 ... 30 VDC (according to EN 50178 SELV/PELV)
Power consumption< 80 mA
Protection classIII
Protected against polarity reversalYes
Outputs2F01
F02
Output signalF01
OUT1: Pulse, switched signal
OUT2: Analog signal, pulse, switched signal

F02
OUT1: Analog signal
OUT2: Analogue signal
Default configurationF01
OUT1: Pulse (flow rate)
OUT2: Analog signal (flow rate)

F02
OUT1: Analog signal ( pressure)
OUT2: Analog signal (flow rate)
Number of outputs2
Analog output current4 ... 20 mA (scalable)
Max. current load< 150 mA
Pulse voltageVDC - 2 V
Pulse duration0.002 ... 2 s (depending on pulse value)
Max. load500 Ω
Short circuit protectionYes
Temperature measurement
Accuracy± 0.5 K; (for media flow within the limits of the measurement range)
Reaction time
Response time0,1 s; (dAP = 0)
Temperature measurement
Response dynamicst09 = 0,5 s
Environmental conditions
Ambient temperature0 ... +60 °C
Storage temperature-20 ... +85 °C
Moisture Max. permissible relative humidity < 90%
Protection classIP 65; IP 67
Approvals / tests
EMCDIN EN 60947-5-9
Vibration resistanceDIN EN 68000-2-6 | 5 g (10 ... 2 000 Hz)
Mechanical data
Material in instrument housingPBT-GF 20, PC (APEC), PBT-PC-GF 30; PPS GF 40; FKM
Contact with the mediaMaterials: stainless steel or zinc-coated steel, FKM, PPS GF40, Al203 (ceramic), acrylate, glass-coated ceramic
The length of the measuring tubeDN 65: 124 mm
DN 80: 160 mm
DN 100: 160 mm
DN 125: 172 mm
DN 150: 180 mm
DN 200: 180 mm
DN 250: 196 mm
Pipe diameterDN 65 (2 1/2")
DN 80 (3“)
DN 100 (4“)
DN 125 (5“)
DN 150 (6“)
DN 200 (8“)
DN 250 (10“)
Weight testo 6456
(zinc-coated steel/stainless steel)		DN 65: 8,5 kg
DN 80: 10,6 kg
DN 100: 12,8 kg
DN 125: 20,6 kg
DN 150: 26,2 kg
DN 200: 36,6 kg
DN 250: 55,1 kg
Display / buttons
DisplayColor screen - 1.44'' | pixel resolution - 128 x 128
Commentsm.v. = measured value
endv. = full scale value
Measurement, display and adjustment ranges refer to standard volume flow according to DIN ISO 2533.
See the user manual for information on installation and operation.
¹ Pressure measurement is only possible in conjunction with the KMAT specification F02 (dual analogue instrument)
² The output option (F01/F02) is specified when ordering and cannot be changed later.
There are no probes for this item.
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Datablad testo 6456
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