Lufft C300 Manuel utilisateur

Manual C300/C310...C340 English

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C300/C310-C340

Version V3 (01/2010)

Manual C300/C310...C340 English

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Contents

1READ BEFORE OPERATING FOR THE FIRST TIME 4

2C300/C310…C340 6

3THE DISPLAY 8

4OPERATION 9

5THE UPPER MENU 11

6THE LOWER MENU 12

Manual C300/C310...C340 English

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7SINGLE-POINT CALIBRATION, C300 15

8CALIBRATION, C310…C340 17

8.1 ZERO POINT CALIBRATION 17

8.2 GRADIENT CALIBRATION 18

9REPLACING BATTERIES 20

10 MAINTENANCE AND ADJUSTMENT 21

Manual C300/C310...C340 English

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1 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)

• Observe storage and transport requirements (protect the

device from direct sunlight)

• Carry out pressure equalisation only with appropriate

reference.

• When moved from one location to another with different

climatic conditions, the device needs an acclimatisation

period of several minutes.

• Technical data, storage and transport requirements can

be found on the data sheet.

• Warranty: Device, 12 months

Manual C300/C310...C340 English

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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.

• Operational safety can no longer be guaranteed in the

case of modifications or adaptations.

Manual C300/C310...C340 English

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C300

C310... C340

2 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

• simple operation by means of a thumb wheel

• a robust and attractively shaped housing

• high precision

• low price

C300 C310 C320 C330 C340

Range 300...1100

hPa

+/- 500

0...100

mbar

0…2000

mbar

0…5000

mbar

Absolute

pressure

Differential

pressure

Differential

pressure

Differential

pressure

Differential

pressure

Table: Measuring ranges of the different models

Manual C300/C310...C340 English

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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.

Please also observe the maximum overload on ports P1

and P2. Higher pressures may damage or destroy the

sensor.

Manual C300/C310...C340 English

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3 The display

◄Upper menu with date and time

◄Sensor 1 display (pressure)

◄Hold, Min, Max, Avg. display

◄Lower configuration and equalisation menu

Manual C300/C310...C340 English

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THUMB-WHEEL

4 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.

Turning the wheel up selects the upper menu. Turning the

wheel down selects the lower menu for configuration and

equalisation.

The thumb-wheel has to be pressed in the middle position to

switch the device on or off and to confirm input values.

Manual C300/C310...C340 English

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The 3 positions of the THUMB-WHEEL

To switch on: press briefly

To switch on with light: press for approx. 2 seconds

To switch off: press for approx. 2 seconds (no menu activated)

Activating the upper menu with HOLD MAX MIN AVG.

Select with ▲, confirm with ►, cancel with ▼or by pressing

nothing for 20 seconds.

Activating the lower configuration and equalisation menu

Select with ▲, confirm with ►, cancel with ▲or by pressing

nothing for 20 seconds.

Symbol in the rest of the

text

►

Symbol in the rest of the text

▲

Symbol in the rest of the text

▼

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