SCHMIDT® Flow Sensor HVAC 100

  • Cylindrical sensor head (largely independent from flow direction, easy to clean)
  • Flow and temperature signal
  • Probe length 144 mm (optional extendable)
  • Measuring ranges 0 … 2.5 m/s to 0 … 20 m/s

 

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

 

SCHMIDT® Technology - simply a question of better measurement

Specifications

General data
HumidityMeasuring mode: Non-condensing (< 95 % RH)
Operating pressure (max.)Atmospheric (700 … 1,300 hPa)
Supply voltage24 V DC ± 20 %
Current consumptionTypical < 35 mA (max. 80 mA)
Analog outputs for wN and TM2 x 0 … 10 V (flow and temperature); (RL ≥ 10 kΩ; CL ≤ 1 nF)
Electrical connectionNon-detachable cable, 4 wires, PVC, length 2 m
Maximum cable length15 m
Type of protectionIP40
Protection classIII (SELV)
Minimum immersion depth35 mm
Dimensionsø 12 mm, probe length 144 mm, extension tube 97 mm (extending length 85 mm)
Weight50 g (probe)
Delivery contentProbe, mounting clamp, 1 pc. extension tube, manual
Technical data
Measuring quantityStandard flow velocity wN, based on standard conditions 1)
Medium temperature TM
Measured mediumAir and gases
Measuring range flow wN0 ... 2.5 / 10 / 20 m/s
Lower detection limit flow wN0.2 m/s
Measuring range temperature TM0 … +60 °C
Measuring accuracy
Flow wN0 ... 2.5 m/s: ± (4 % of measured value + 0.05 m/s)1)
0 ... 10 m/s: ± (4 % of measured value + 0.2 m/s)1)
0 ... 20 m/s: ± (4 % of measured value + 0.4 m/s)1)
Response time (t90) wNApprox. 10 s (jump of wN from 0 to 5 m/s)
Temperature gradient wN< 1,5 K/min at 5 m/s
Temperature TM
(wN > 2 m/s)
± 1 K (10 … 30 °C);
± 2 K (in remaining interval)
Operating temperature
Sensor-10 … +60 °C
Material
SensorPC, ABS, Brass nickel plated
Extension tubeABS
Mounting clampPA-GF

1) Standard velocity wN based on standard conditions of 20 °C and 1,013.25 hPa, related to adjustment reference; fmr = final measuring range

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. per pack)551 300

Downloads

Back to Top