Advertisement
Quick Links
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for Lufft A1-SDI
Summary of Contents for Lufft A1-SDI
- Page 1 Manual A1-Sensors English A1-SDI Sensors Status V2 (11/2005) Page 1 of 29...
-
Page 2: Table Of Contents
Manual A1-Sensors English Table of Contents 1 Read before using 2 General 3 PT100 Temperature Sensors 4 Temperature/Humidity Sensors 5 Flow Sensors 6 Oil Sensor Page 2 of 29... -
Page 3: Read Before Using
Manual A1-Sensors English • Never carry out measurements on live electrical parts. • Pay attention to the measurement ranges of the sensors (overheating can cause destruction). • Only carry out sensor calibration with the aid of a suitable 1 Read before using reference device. - Page 4 Manual A1-Sensors English • The sensors must only be operated within the range of the Designated use: specified technical data. • The sensors must only be used under the conditions and for the purposes for which they were designed. • Operating safety can no longer be guaranteed if the sensors are modified or reconstructed.
-
Page 5: General
2 General In addition to the standard functions of the lower menu on the A1-SDI, such as UNIT1, UNIT2, TIME, etc. (see A1-SDI Manual), there are also the arrow menus F1...F4. Dependent on the sensor, these arrows are used differently and may be assigned to both a function and a unit. - Page 6 Manual A1-Sensors English Sensor T/H: 9130.52 g/kg gr/lb Pabs T/H: 9130.53 g/kg gr/lb Pabs : 9130.60 Oil para. Oil para. Aw value V/T: 6120.51 Pabs V/T:6120.52 Pabs V/T: 6120.53 Pabs Page 6 of 29...
-
Page 7: Pt100 Temperature Sensors
• Application: Temperature measurement in solid, liquid and powdery media • Response time: 10 seconds • Measurement variable: Temperature [°C/°F] • Calibration: Single point calibration (see A1-SDI Manual) • The sensor is recognized automatically by the A1-SDI Page 7 of 29... - Page 8 • Application: Temperature measurement in gaseous, liquid and powdery media • Response time: 10 seconds • Measurement variable: Temperature [°C/°F] • Calibration: Single point calibration (see A1-SDI Manual) • The sensor is recognized automatically by the A1-SDI Page 8 of 29...
- Page 9 • Application: Temperature measurement in solid, liquid and powdery foods • Response time: 10 seconds • Measurement variable: Temperature [°C/°F] • Calibration: Single point calibration (see A1-SDI Manual) • The sensor is recognized automatically by the A1-SDI Page 9 of 29...
-
Page 10: Temperature/Humidity Sensors
• Application: HACV humidity and temperature measurement • Response time: ≤ 7 seconds • Measurement variables: Unit 1: Temperature [°C/°F] Unit 2: Relative humidity [%], absolute humidity [g/m³], dewpoint temperature [°C/°F] • Calibration: Single/two point calibration (see A1-SDI Manual) Page 10 of 29... - Page 11 • Measurement variables: Unit 1: Temperature [°C/°F] Unit 2: Relative humidity [%], absolute humidity [g/m³], dewpoint temperature [°C/°F], Unit Unit Input mixing ratio [g/kg, gr/lb] g/kg gr/lb Pabs • Calibration: Single/two point calibration (see A1-SDI Functions of F1...F4 Manual) Page 11 of 29...
- Page 12 Unit 1: Temperature [°C/°F] Unit 2: Relative humidity [%], absolute humidity [g/m³], dewpoint temperature [°C/°F], Unit Unit Input mixing ratio [g/kg, gr/lb] • Calibration: Single/two point calibration (see A1-SDI g/kg gr/lb Pabs Manual) Functions of F1...F4 Page 12 of 29...
- Page 13 Manual A1-Sensors English H/[m] p[hPa=mbar] Correction Factor Pressure Dependence of the Mixing Ratio: In order to precisely determine the mixing ratio in g/kg or gr/lb 1013.25 1.000 at different heights (h) above sea level, the effect of air 1006.94 1.006 pressure on the measurement can be corrected using the 1000.67 1.013...
- Page 14 Manual A1-Sensors English The calculated correction factor can be consulted by means h/[m] p[hPa=mbar] Correction Factor of the special function - Pabs – in the measuring instrument. 1000 894.26 1.133 1500 840.11 1.206 Note: If the actual air pressure is not known, reference can be 2000 789.24 1.284...
-
Page 15: Flow Sensors
Manual A1-Sensors English 5 Flow Sensors Flow Sensor 6mm / 0...2m/s - 6120.51 • Application: Flow measurement where high accuracy is demanded or in restricted space conditions • Response time: ≤ 1.5 seconds • Measurement variables: Unit 1: Flow [m/s / fpm] Unit 2: Temperature [°C/°F] Unit Input... - Page 16 Manual A1-Sensors English Flow Sensor 6mm / 0...20 m/s -6120.52 • Application: Flow measurement where high accuracy is demanded or in restricted space conditions • Response time: ≤ 1.5 seconds • Measurement variables: Unit 1: Flow [m/s / fpm] Unit 2: Temperature [°C/°F] Unit Input Pabs...
- Page 17 Manual A1-Sensors English Flow Sensor 12mm / 0...20 m/s - 6120.53 • Application: Low cost flow measurement in the HVAC sector • Response time: ≤ 1.5 seconds • Measurement variables: Unit 1: Flow [m/s / fpm] Unit 2: Temperature [°C/°F] Unit Input Pabs...
- Page 18 Manual A1-Sensors English CAL1 initiates single point flow calibration. The flow set-point (Unit 1) is shown on the upper section of the display. A gradient correction factor, which may be changed to calibrate the flow between 0.8 and 1.2 in steps of 0.001, is shown on the lower section of the display.
- Page 19 Manual A1-Sensors English The calibration value should be > 50% of the upper end value of the sensor measurement range. Select the direction of flow onto the probe from the straight handle side when calibrating. Directional effect: The hand-held flow sensors have only a low directional effect. The measurement error resulting from distorted positioning is less than 3% of the measurement in the range of +/-15°...
- Page 20 Manual A1-Sensors English CAL2 initiates single point temperature calibration. The temperature set-point (Unit 2) is shown on the lower section of the display. The temperature offset, which may be changed to calibrate by +/-10°C (+/-18°F) in steps of 0.01°C, is shown on the upper section of the display.
- Page 21 Manual A1-Sensors English H/[m] p[hPa=mbar] Correction Factor Pressure Dependence of Flow Measurement: In order to precisely measure flow at different heights (h) 1013.25 1.000 above sea level, the effect of air pressure on the 1006.94 1.006 measurement can be corrected using the barometric height 1000.67 1.013 formula.
- Page 22 Manual A1-Sensors English function F4 (Pabs). The air pressure is set to 1013 mbar in H/[m] p[hPa=mbar] Correction Factor the factory. 1000 894.26 1.133 1500 840.11 1.206 Note: If the actual air pressure is not known, reference can be 2000 789.24 1.284 made to average values related to sea level, in order to...
- Page 23 Manual A1-Sensors English Tips for correct sensor placement: • Provide suitable sections to settle air flow after cross- sections, bends and branches (turbulence!). • Always carry out measurements in the centre of the duct. • The optimum placement for the sensor is after filters and rectifiers (no turbulence).
-
Page 24: Oil Sensor
Manual A1-Sensors English 6 Oil Sensor Oil Sensor 12 mm - 9130.60 • Application: Moisture measurement in mineral and synthetic oils • Measurement range: 0...1 a / 0...20000 ppm / -40...120°C • Response time: ≤ 10 minutes (still oil) • Measurement variables: Unit 1: Temperature [°C/°F] Unit 2: Water activity aw [ ], alternatively water Oil para. - Page 25 Manual A1-Sensors English Single Point Temperature Calibration CAL1 initiates single point temperature calibration. The temperature set-point (Unit 1) is shown on the upper section of the display. The temperature offset, which can be changed to calibrate by +/-10°C (+/-18°F) in steps of 0.1°C, is shown on the lower section.
- Page 26 Manual A1-Sensors English Single Point Water Activity Calibration CAL2 initiates single point water activity calibration. The set- Factory calibration point (Unit 2) is shown on the lower section of the display. Offset input The offset value for Unit 2, which can be changed to calibrate water activity in the range from +/-0.100 in steps of 0.001, New characteristic line flashes in the upper section.
- Page 27 Manual A1-Sensors English Two Point Water Activity Calibration CAL2L / CAL2H: The lower calibration value can be calibrated in the CAL2L menu. The upper calibration value can be calibrated in the CAL2H menu. The lower value must lie in the range from 0.000...0.400 and the upper value in the range from 0.600...0.950.
- Page 28 Manual A1-Sensors English Inputting oil-specific parameters for the calculation of water content: Dependent on the type of oil, different parameters are required to calculate/display the water content in ppm. These sets of parameters describe the saturation behaviour of the oils and can be obtained from the manufacturer on request. The parameter (A=-1663.3 / B=7.37) is provided by the manufacturer to calculate water content for mineral transformer oil.
- Page 29 Manual A1-Sensors English The oil-specific parameter A (-1999.9...100.0) is entered via special function F1 and parameter B (0.00...20.00) is entered via special function F2. It is only possible to enter the parameters (A and B) via the special functions F1 and F2 when water content x [ppm] has been selected as the measurement variable.
Need help?
Do you have a question about the A1-SDI and is the answer not in the manual?
Questions and answers