testo 511 Bedienungsanleitung Seite 2

testo 511
Instructions
Positive/Negative
pressure socket
Unit switch
On/Off
Initialisation
According to the conformity certificate, this product fulfills the
guidelines in accordance with 89/336/EEC.
0973.5110/T/wh/PC_qxd/06.02
Basic safety instructions
Please read the following safety instructions with care:
Avoid electrical hazards:
Never make measurements with the instruments on or near live com-
ponents.
Preserve product safety:
Operate the instrument only within the parameters specified in the
technical data.
Handle the instrument suitably and according to its intended purpose.
Open the instrument only when this is expressly described in the
Instructions for maintenance purposes.
Never apply force!
Ensure correct disposal:
Dispose of empty batteries at the provided collection points.
Send the unit directly to us at the end of its life cycle. We will ensure
that it is disposed of in an environmentally friendly manner.
Important information
Notes and special cases in the handling of your unit are indicated by
an exclamation mark.
Due to technical reasons, the display speed of the liquid crystal dis-
plays slow down at temperatures below 0 °C (approx. 2 s at -10 °C,
approx. 6 s at -20 °C). Measuring accuracy is not affected.
Warranty
Warranty ......................................................................................2 years
Use of the unit for its intended purpose
The battery-operated testo 511 is used to measure the positive or
negative pressure and differential pressure in gases (See Ordering data
for measuring ranges). testo 511 (0 to 1100 hPa/mbar ) is used to
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measure absolute pressure.
Its robustness and easy handling make it suitable for customer service
and maintenance work on heating, ventilation and air conditioning units.
All pressures in the positive range can also be measured in the nega-
tive range (Example: In the measuring range 0 to 200 hPa/mbar,
the instrument can also measure negative pressure 0 to -200
hPa/mbar). Ensure connection is correct (positive pressure +,
negative pressure -)!
testo 511 zeroises automatically when switched on, except testo
511 (0 ... 1100 hPa/mbar ).
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testo 511 switches off automatically after 16 min (Auto Off function),
with the exception of testo 511 (0 ... 1100 hPa/mbar ).
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Battery capacity
Symbol Capacity
10 - 100%
<10 % (
remaining duration 15 h)
Changing the battery
It is necessary to change the battery if the symbol appears in the
display.
- Open housing using a screwdriver.
- Release battery holder.
- Remove spent battery from battery compartment.
- Place new battery in the battery compartment. Insert correctly (+/-)!
- Close housing.
- testo 511 is ready for use.
Accessories/Spare parts
TopSafe ..................................................................................0516.0183
Rechargeable battery ............................................................0515.0025
Connection hose ..................0554.0440
(5 m long, silicone, max. 700 hPa)
ISO calibration cert. (press., 3 points distributed over meas. range) ......0520.0095
ISO calibration cert. (press., 5 points distributed over meas. range) ......0520.0005
ISO calibration cert. ( 0520.0115
absolute pressure, 3 points) ......................................
ISO calibration cert. ( absolute pressure, 5 points)...................................... 0520.0195
Technical data
Common data
Units/Pressure ..........................hPa/mbar, mmH2O, mmHg, psi, inH2O
Media ........................................................Air or all non-corrosive gases
Pressure connection ..........................................4/6 mm inner diameter
Display....................................................................................LCD, 1 line
Storage temperature ........................................................-20 to +70 °C
Operating temperature ..........................................................0 to 40 °C
Battery type ..................................................................9 V block battery
Battery life ........................................................................Approx. 150 h
Auto Off ........................................................................................16 min
Dimensions in mm ............................................................191 x 57 x 42
Weight ............................................................................................275 g
testo 511 (0 to 200 hPa/80 IWC)
Measuring range ..........................0 to 10 hPa/mbar; 0 to 4 IWC (low)
..................................................10 to 200 hPa/mbar; 4 to 80 IWC (high)
Accuracy* ......................................± 0.03 hPa /mbar (0 to 1 hPa/mbar)
..........................................±1.5% of full-scale value (1 to 10 hPa/mbar)
................±(1 hPa /mbar+ 1% of measured value) (10 to 200 hPa/mbar)
Resolution
Low: ..0.01 hPa/mbar; 0.1 mmH2O; 0.001 inH2O; 0.01 mmHg; 0.001 psi
High: ............0.1 hPa/mbar; 1 mmH2O; 0.01 inH2O; 0.1 mmHg; 0.01 psi
Overload ............................................................................300 hPa/mbar
testo 511 (0 to 1000 hPa/14.5 psi)
Measuring range ....................................0 to 1000 hPa/mbar; 14.5 psi
Accuracy* ....................................................± 0.5 % of full-scale value
Resolution .... 1 hPa/mbar; 1 mmH O; 0.1 mmHg; 0.01 psi; 0.1 inH
2
Overload ..........................................................................2000 hPa/mbar
testo 511 (0 ... 1100 hPa /16 psi)
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Measuring range ............................0 to 1100 hPa/mbar ; 0 to 16 psi
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Accuracy* ..........................................................................± 4 hPa /mbar
Resolution ........1 hPa/mbar; 1 mmH O; 0,1 mmHg; 0,01 psi; 0,1 inH
2
Overload ..........................................................................2000 hPa/mbar
* at rated temperature of + 22 °C
testo 511 (0 to 10/200 hPa/mbar)
testo 511 (0 to 1000 hPa/mbar)
Measuring
If there is a change in temperature, the instrument
needs 30 minutes to adapt to the new ambient tem-
perature.
- Connect hoses to testo 511.
- Switch on testo 511 using On button.
- Segment test is carried out.
Note
Not all segments are available in all of the instru-
ment versions.
- Automatic initialisation is carried out.
- Measuring mode
- Press >0< to zeroise.
- Connect hoses to pressure system
- Measure
- Press On , instrument switches off.
Measuring range has been exceeded
Note
Pressure which is greater than the specified overload
will destroy the sensors.
Switching units
testo 511 (0 to 10/200 hPa/mbar)
testo 511 (0 to 1000 hPa/mbar)
- Keep >0< button pressed when switching on.
- The unit last set flashes in the display.
- Keep pressing >0< until the required unit appears in
the display.
- Let go of >0< button.
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- Instrument will start with new unit.
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Operation
Switching measuring ranges in testo 511
testo 511 (0 to 10/200 hPa/mbar) has an automatic
measuring range switchover function.
The instrument starts in the top measuring range and
switches automatically to the lower measuring range
after 2 s.
If a pressure of 10 hPa/mbar is exceeded, the instru-
ment changes automatically to the higher range
(resolution: 0.01 hPa/mbar ð 0.1 hPa/mbar).
testo 511 (0 to 1100 hPa/mbar
Measuring
If there is a change in temperature, the instrument
needs 30 minutes to adapt to the new ambient tem-
perature.
- Connect hoses to testo 511.
- Switch on testo 511 using On button.
- Segment test is carried out.
Note
Not all segments are available in all of the instru-
ment versions.
- Measuring mode
- Connect hoses to pressure system
- Press On button, instrument switches off.
Operation
Switching units
testo 511 (0 to 1100 hPa/mbar
- Keep UNIT button pressed when switching on.
- The unit last set flashes in the display.
- Keep pressing UNIT button until the required unit is
displayed.
- Let go of UNIT button.
- Instrument will start with new unit.
Operation
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Operation
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