SCHMIDT® Flow Sensor HVAC 100

At many applications like ventilation, exhaust and air-conditioning systems, it is necessary to measure flow velocity, mass flow as well as the temperature of the medium to ensure an energy efficient operation of the unit.

 

The 3 measuring ranges of this sensor (0 … 2.5 m/s, 0 … 10 m/s and 0 … 20 m/s) have been tailored for the HVAC industry but also for other applications.

 

Easy-to-install: The HVAC 100 with its 360° measuring head does not have to be aligned to the flow direction and can be extended by additional tubes (variable immersion depth). Furthermore this sensor is maintenance-free, robust, long-term stable and easy-to-clean and therefore fulfills the main requirements for an efficient installation process.

 

The operating status display via LED enables safe operation at a glance and due to the fully integrated evaluation electronics in the sensor tube there are no further transmitters required.

 

  • Ventilation, exhaust and air-conditioning systems
  • Control of supply air and exhaust air in fume chambers
  • Filter monitoring

Specifications

General Data
Measuring quantityStandard flow velocity wN, based on standard conditions of TN = 20 °C and pN = 1,013.25 hPa
Measured mediumAir and gases
Measuring range wN
Measuring accuracy under conditions of the reference wN
0 ... 2.5 m/s ± (4 % of measured value + 0.05 m/s)
0 ... 10 m/s ± (4 % of measured value + 0.2 m/s)
0 ... 20 m/s ± (4 % of meas. value + 0.4 m/s)
Lower detection limit wN0.2 m/s
Reproducibility wN± 1.5 % of measured value
Measuring range TM0 … +60 °C
Measuring accuracy TM
(wN > 2 m/s)
± 1 K (10 … 30 °C); ± 2 K (in remaining interval)
Response time (t90) wNApprox. 10 s (jump of wN from 0 to 5 m/s)
Operating temperature-10 … +60 °C
Relative HumidityNon-condensing (≤ 95 % rH)
Operating pressureAtmospheric (700 … 1,300 hPa)
Supply voltage24 V DC ± 20 %
Current consumptionTypical < 35 mA (max. 80 mA)
Analog outputs0 … 10 V
BurdenRL ≥ 10 kΩ; CL ≤ 1 nF
Electrical connectionNon-detachable cable, 4 wires, PVC, length 2 m
Cable length (recommended)15 m
Type of protectionIP40
Protection classIII (SELV)
Min. immersion depth (MID)35 mm
Dimensionsø 12 mm, probe length 144 mm, extension tube 120 mm
MaterialPC, ABS, Messing vernickelt
Weight50 g (probe)
Delivery contentProbe, mounting clamp, 1 pc. extension tube, manual

Subject to technical changes.

Order information

DescriptionArticle-Number
HVAC 100 – 2.5 m/s548 000-13
HVAC 100 – 10 m/s548 000-11
HVAC 100 – 20 m/s548 000-12
Extension Tube (set of 5 pcs.)551 300

Accessories

Mounting and Fixing Technology

DescriptionArticle-Number
Extension tubes (5 pcs)551 300

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