Technical Data | |
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Measuring quantity | Standard velocity wN based on standard conditions of TN = 20 °C and pN = 1,013.25 Media temperature TM |
Medium to be measured | Clean air, nitrogen, other gases upon request |
Measuring range flow wN | 0 … 10 / 20 / 40 / 60 m/s |
Lower measuring range limit wN | 0.2 m/s @ 20 °C |
Measurement accuracy | 0 … +200 / +350 °C |
Measurement accuracy wN | Standard: ±3 % of measured value + (0.4 % of final value; min. 0.08 m/s 1) High precision: ±1 % of measured value + (0.4 % of final value; min. 0.08 m/s 1) |
Response time (t90) wN | 3 s (jump from 0 to 5 m/s in air) |
Temperature gradient wN | 8 K/min @ wN = 5 m/s |
Recovery time | < 10 s after temperature change of ∆ϑ = 40 K @ wN = 5 m/s |
Measurement accuracy TM (wM > 2 m/s) |
± 2 K (TM = 10 ... 30 °C) ± 4 K (remaining measuring range) |
Operating temperature | |
Sensor tip | 0 … +200 °C / +350 °C |
Electronics | -20 … +70 °C |
Storage temperature | -20 ... +85 °C |
Humidity | Non-condensing, high relative air humidity in combination with high temperature can cause measurement deviations |
Operating pressure | Atmospheric / 16 bar (over pressure) |
Electronic data | |
Supply voltage | 24 V DC ± 20 % |
Current consumption | typ. 50 mA (max. 250 mA) |
Display | 4 x Duo LEDs (green / red / orange) |
Start up time | Approx. 10 s after switch-on |
Type / class of protection | IP 65 (housing), IP 54 (probe) / III (SELV) or PELV (EN 50178) |
Analogue outputs for temperature and flow rate Auto U / I |
0 … 10 V / 4 … 20 mA (protected against short circuits) Voltage output: ≥ 550 Ω Current output: ≤ 500 Ω Hysteresis: 50 Ω Load capacity: ≤ 10 nF |
Impulse outputs | 1. Highside driver to supply voltage (not galvanically isolated) High level: > supply voltage - 3 V Short circuit current limitation: 100 mA 2. Semiconductor relay (galvanically isolated); max. 30 V / 50 mA |
Frequency of digital outputs | 0 ... 100 Hz or 1 impulse / m3 or free selectable frequency (10 ... 100 Hz) |
Feldbus (optional) | Profibus DP / DeviceNet |
Electrical connection | Plug-in connector M 12, 8-pole, male, screwed |
Maximum cable length | Voltage signal: 15 m Current signal / impulse: 100 m |
Mounting position | Arbitrary (atmospheric; under higher pressure preferred horizontally) |
Installation tolerance | ± 3° to flow direction |
Weight | 550 g max. (400 mm input length), 800 g (field bus version) |
Mounting tolerance | ±3° relative to flow direction |
Minimum tube diameter | DN 20 (depending on media temperature) |
Weight | 750 g max. (fieldbus version) |
Probe length (L) | 250 / 400 / 600 / 1,000 mm (both versions) |
Cable length (remote version) | Selectable: 1 ... 10 m (in steps of 10 cm) |
Material | |
Housing | Aluminium, anodized |
Sensor tube | Stainless steel 1.4571 |
Screw connection | Stainless steel 1.4571 or brass (depending on sensor option) |
Sensor head | Platinum resistor element (glass-passivated), ceramics |
1) under reference conditions, related to adjustment reference
Subject to technical changes.