Catalog excerpts
• Automatic atmospheric pressure compensation is provided for pressure-dependent flow velocity by means of a digital atmospheric pressure sensor integrated in the ALMEMO® D6 plug itself. • Digital thermoanemometer with A/D converter in the grip or integrated in the cable • The probe tube has a small diameter, only 6 mm. • All relevant measurable variables can be measured using just FVAD 35 TH4 / TH5 one sensor. • Three measuring channels are programmed (at our factory): Temperature (°C, t), Flow velocity (m/s, v), Atmospheric pressure (mbar, AP, p) General features and accessories, ALMEMO® D6 sensors: see page 01.08 Technical data Digital thermoanemometer (Sensor including A/D converter) Flow Measuring range FVAD 35 TH4 / TH4Kx 0.08 to 2 m/s FVAD 35 TH5 / TH5Kx 0.2 to 20 m/s Resolution FVAD 35 TH4 / TH4Kx 0.001 m/s FVAD 35 TH5 / TH5Kx 0.01 m/s Response time <1.5 seconds Accuracy FVAD 35 TH4 / TH4Kx ± (0.04 m/s +1% of meas. val.) FVAD 35 TH5 / TH5Kx ± (0.2 m/s +2% of meas. val.) Nominal conditions 22 °C ±2 K, 45 % RH ±10 % RH 1013 mbar Temperature compensation 0 to +50 °C Influence of temperature FVAD 35 TH4 / TH4Kx ±0.5 % of measured value /°C at 0.3 to 2 m/s FVAD 35 TH5 / TH5Kx ±0.3% of measured value /°C at 0.3 to 20 m/s Incidental flow bidirectional Angle dependence <3% of measured value with deviation <15° Pressure range Ambient pressure automatic in range 700 to 1100mbar Pressure compensation Accessories (for FVAD 35 THxK1 / K2 only) DAkkS or factory calibration KV90xx air flow for digital sensor (see chapter „Calibration certificates“). DAkkS calibration meets all the requirements regarding test resources laid down in DIN EN ISO/IEC 17025. Temperature Measuring range -20 to +70 °C Resolution 0.1 °C Accuracy ±0.7 °C at 0 to 50 °C and >0.5 m/s typical 10 seconds Response time T90 Digital atmospheric pressure sensor (integrated in ALMEMO® D6 plug) Measuring range 700 to 1100 mbar Accuracy ±2.5 mbar (at 23 °C ±5 K) ALMEMO® D6 plug Refresh rate 0.5 seconds for all 3 channels Supply voltage 6 to 13 VDC Current consumption 40 mA Dimensions Probe diameter 6 mm Flow aperture approx. 10 x 3 mm FVAD 35 TH4 / TH5 Probe with grip, probe lengths 210 mm (plus grip) ALMEMO® cable 1.5 meters FVAD 35 TH4Kx / TH5Kx Probe with detached electronics unit integrated in the cable, Probe lengths THxK1, 80 mm / THxK2, 300 mm Probe cable 5 meters to the electronics ALMEMO® cable 1.5 m Order no. Clamped screw connection with thread adapter for telescopic extension / extension set (maximum 80 °C) ZV9915KV Telescope extension Ø 15 to 24 mm 330 / 1010 mm ZV9915TV Extension set Ø 15 mm 4 x 255 mm ZV9915VR3 (including works certificate) Order no. Digital thermoanemometer, fitted cable with ALMEMO® D6 plug and integrated digital atmospheric pressure sensor Sensor 2 m/s, length = 210 mm, (with grip) FVAD35TH4 Sensor 2 m/s, length = 80 mm, (detached electronics unit) FVAD35TH4K1 Sensor 2 m/s, length = 300 mm, (detached electronics unit) FVAD35TH4K2 Sensor 20 m/s, length = 210 mm, (with grip) FVAD35TH5 Sensor 20 m/s, length = 80 mm, (detached electronics unit) FVAD35TH5K1 Sensor 20 m/s, length = 300 mm, (detached electronics unit) FVAD35TH5K2 Other designs are available on request High-temperature thermoanemometer MT8635THx Operative range -40 to +120 °C, up to 40 m/s Probe with detached electronics unit integrated in the cable 10/2016 • We reserve the right to make technical changes. Digital thermoanemometer FVAD 35 THx with ALMEMO® D6 plug with integrated atmospheric pressu
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