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Summary of Contents for Lufft C300
- Page 1 Manual C300/C310...C340 English C300/C310-C340 Version V3 (01/2010) Page 1 of 21...
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Page 2: Table Of Contents
Manual C300/C310...C340 English Contents 1 READ BEFORE OPERATING FOR THE FIRST TIME 2 C300/C310…C340 3 THE DISPLAY 4 OPERATION 5 THE UPPER MENU 6 THE LOWER MENU Page 2 of 21... - Page 3 Manual C300/C310...C340 English 7 SINGLE-POINT CALIBRATION, C300 8 CALIBRATION, C310…C340 8.1 Z ERO POINT CALIBRATION 8.2 G RADIENT CALIBRATION 9 REPLACING BATTERIES 10 MAINTENANCE AND ADJUSTMENT Page 3 of 21...
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Page 4: Read Before Operating For The First Time
Manual C300/C310...C340 English Read before operating for the first time • The operating instructions should be read carefully before the device is used and followed in every detail. • Never take any measurements of electrically live components • Remain within the measuring ranges of the sensors (overheating can lead to their destruction) •... -
Page 5: C300/C310...C340
Manual C300/C310...C340 English Appropriate use: • The measuring device must only be operated within the specified technical parameters. • The measuring device can only be used for non- corrosive gas, such as dry air and dry gases. • The measuring device must only be used under the conditions and for the purposes for which it was designed. - Page 6 Manual C300/C310...C340 English C300/C310…C340 The new Compact series of hand-held measuring devices for the measurement of barometric pressure and differential pressure is characterised by: • a large display with background lighting C300 simple operation by means of a thumb wheel •...
- Page 7 Manual C300/C310...C340 English The differential pressure models C310…C340 are equipped with two pressure ports (P1 and P2): In the case of C310 models, the higher pressure is connected to P1. For all the other models, the higher pressure must be connected to P2.
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Page 8: The Display
Manual C300/C310...C340 English The display ◄ Upper menu with date and time ◄ Sensor 1 display (pressure) ◄ Hold, Min, Max, Avg. display ◄ Lower configuration and equalisation menu Page 8 of 21... -
Page 9: Operation
Manual C300/C310...C340 English Operation In contrast to conventional hand-held measuring devices, the C3x0 devices do not have a keypad, but what is known as a "THUMB-WHEEL" on the left-hand side of the device. The wheel can be turned up or down through 15° and can also be pressed in the middle position. - Page 10 Manual C300/C310...C340 English The 3 positions of the THUMB-WHEEL To switch on: press briefly Symbol in the rest of the To switch on with light: press for approx. 2 seconds text To switch off: press for approx. 2 seconds (no menu activated) ►...
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Page 11: The Upper Menu
Manual C300/C310...C340 English The upper menu The standard functions: HOLD MAX MIN AVG ▲ can be selected in the uppper menu. Select with ▲, the HOLD selected function flashes and is confirmed by means of ►. ▲ Once confirmed, the function is shown steady on the display. -
Page 12: The Lower Menu
Manual C300/C310...C340 English The lower menu ▼ Unit 1 In the lower configuration and equalisation menu, the functions: ▼ Unit1 Time Date AutoOff CAL 1LH Time can be selected. Select with ▼, the selected function flashes ▼ and is confirmed by means of ►. The menu can be cancelled Date by ▲... - Page 13 Units hPa, mbar, mbar mbar mbar Illustration: Housing pressure, C300 In.Hg mbar in.Hg in.Hg in.Hg The units mbar, bar, in.Hg and psi are printed on the housing. Illustration: Housing pressure, C310 The unit selected is indicated by means of arrow symbols.
- Page 14 Manual C300/C310...C340 English Time: Time is used to set the time. Hours and minutes are one after another. Select by means of ▲ and ▼; and confirm with ►. Date: Date is used to set the date. Day, month end year are entered one after another.
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Page 15: Single-Point Calibration, C300
The offset is active across the whole measuring range. The original works settings (elevation head = 0m) can be achieved by setting the offset to 0.0. Two-point calibration is not possible with the C300. Page 15 of 21... - Page 16 Manual C300/C310...C340 English Table: Standard atmospheric pressure Elevation Average air Height Change/m head/m pressure/hPa correction/hPa 1013.25 0.120 1001.3 0.118 989.5 23.8 0.118 977.7 35.6 0.116 966.1 47.2 0.115 954.6 58.7 0.114 943.2 70.1 0.113 931.9 81.4 0.111 920.8 92.5 0.111 909.7...
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Page 17: Calibration, C310
Manual C300/C310...C340 English Calibration, C310…C340 Zero point calibration CAL1 L: CAL1 L (zero point calibration) is used to adjust the zero point of the differential sensor. To do this, please remove the connecting hoses from pressure ports P1 and P2. -
Page 18: Gradient Calibration
Manual C300/C310...C340 English Gradient calibration CAL1 H (gradient calibration) is used to adjust the gradient of the differential sensor. The adjusted value should be over 50 % of the terminal value of the sensor. The values are entered at the calibration point not as absolute values but as differential values. - Page 19 Manual C300/C310...C340 English Original works calibration Offset input New characteristic line Measured value Important: Gradient calibrations must only be carried out by trained staff with Illustration: Changing the gradient on a differential pressure suitable calibration equipment. sensor Page 19 of 21...
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Page 20: Replacing Batteries
Manual C300/C310...C340 English Replacing batteries When the message BAT appears on the display you have a few hours of battery life left. Open the battery cover on the back of the device. Remove the discharged batteries and replace them with new ones. -
Page 21: Maintenance And Adjustment
Manual C300/C310...C340 English Maintenance and adjustment When used in the area of climate-control technology, we recommend annual maintenance. Before it is checked or adjusted the device should be stored at a temperature of approx. 20°C..25°C for 12 hours. Recalibration should only be carried out by specialist staff or, better still, at accredited laboratories.
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