Lambrecht METEODIGIT IV User manual

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
METEODIGIT IV
Features
METEODIGIT IV is a hand-held measuring instru-
ment. Optionally it can be connected with sensors for
airflow, wind speed, relative humidity or air tempera-
ture. It provides a practical and cost-effective solution
e.g. for production facilities, quality management, air
conditioning technology and ventilating applications,
on ships and in scientific laboratories.
• Digital measuring technique
• With null balance
• Averaging, for each sensor individual adjustable and
storable
• Threshold value compensation
• Automatic sensor recognition
• Intelligent loading system
• Compact and robust design
• Simple operation
• Fail-safe
• High measuring accuracy

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
2
1. OPERATING CONTROLS
1Measuring inputs (M0)
for all LAMBRECHT Sensors
2Connection DC 12V
12VDC Mains adapter
3LCD-Anzeige
a Function
b Measuring point, 2nd meas. value
c Units for 2nd measured value
d Units for 1st measured value
e 1st measured value
f Operational states:
Battery voltage < 3.6V
Unlocked for adjust. purposes
Measured value corrected
Relative measuring
Operating keys
ON OFF Switch ON, to switch OFF: press long
M▲, M▼Meas. point selection
MAX ,MIN Max. / min. value, clear: press long
MEM Measured data storage, display value: press long
CLR Relative measuring, cancel: press long
To switch ON with press keys:
CLR Reinitialization
MEM Device configuration
M▲Software version
MAX u. MIN unlocking for adjustment
Rear of device
5Battery compartment
3 AA alkaline-manganese batteries

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
3
2. CONTENTS
1.OPERATINGCONTROLS 2
2.CONTENTS 3
3.GENERAL 4
3.1.1 Warranty ..............................................................................................................................................4
3.1.2 Scope of delivery ................................................................................................................................4
3.1.3 Waste disposal....................................................................................................................................4
4. SAFETY INFORMATIONS 5
4.1.1 Special notes on use..........................................................................................................................5
4.1.2 Handling batteries / rechargeable batteries correctly ....................................................................5
5.INTRODUCTION 6
5.1 Functions................................................................................................................................................6
5.1.1 Sensor programming .........................................................................................................................6
5.1.2 Measuring operations ........................................................................................................................6
6. INITIAL COMMISSIONING 6
7.POWERSUPPLY 6
7.1 Battery operating and supply voltage monitoring .............................................................................6
7.2 Switching ON / OFF, reinitialization.....................................................................................................6
8. CONNECTING THE SENSORS 6
8.1.1 Sensors................................................................................................................................................7
8.1.2 Measuring inputs and additional channels......................................................................................7
9. DISPLAY AND KEYPAD 7
9.1.1 Display .................................................................................................................................................7
9.1.2 Keypad.................................................................................................................................................7
10. MEASURING OPERATIONS 8
10.1 Measuring value ..................................................................................................................................8
10.1.1 Selecting a measuring point............................................................................................................8
10.1.2 Measuring ranges.............................................................................................................................8
10.1.3 Double display ..................................................................................................................................8
10.2 Peak value memory .............................................................................................................................8
10.3 Measured value memory.....................................................................................................................8
10.4 Relative measuring..............................................................................................................................9
11. DEVICE CONFIGURATION 9
11.1 Moving average....................................................................................................................................9
11.2 Device locking......................................................................................................................................9
11.3 Automatic switch OFF.........................................................................................................................9
11.4 Atmospheric pressure compensation ..................................................................................................9
12.TROUBLESHOOTING 10
13.DECLARATIONOFCONFORMITY 10
14.TECHNICALDATA 11
14.1.1 Product overwiew.......................................................................................................................... 11

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
4
3. GENERAL
Congratulations on your purchase of this measuring
instrument METEODIGIT IV. In order to assure an easy
operation, the device configures itself automatically
after connecting the sensors. As the device can be
connected with a wide range of LAMBRECHT sensors,
the operating instructions should be read properly in
order to become acquainted with the numerous possi-
bilities and operation mode of the sensors.
3.1.1 Warranty
Each and every device, before leaving our factory, un-
dergoes numerous quality tests. We provide a guaran-
tee, lasting 2 years from delivery date, that your device
will function trouble-free. In the unlikely event that the
device proves defective and you need to return it
please wherever possible use the original packaging
material for dispatch and enclose a clear and informa-
tive description of the fault and of the conditions in
which it occurs.
This guarantee will not apply in the following cases:
zThe customer attempts any form of unauthor-
ized tampering and alteration inside the device.
zThe device is used in environments and condi-
tions for which it is not suited.
zThe device is used with unsuitable power sup-
ply equipment and / or peripherals.
zThe device is used for any purpose other than
that for which it is intended.
zThe device is damaged by electrostatic dis-
charge or lightning.
zImproper handling respectively non-observance
of the operating instructions
The manufacturer reserves the right to change the
product's characteristics in the light of technical pro-
gress or to benefit from the introduction of new compo-
nents.
3.1.2 Scope of delivery
When you unpack the device check carefully for any
signs of transport damage and ensure that delivery is
complete.
Measuring instrument METEODIGIT IV with
3 alkaline batteries,
operating instructions
In the event of transport damage please retain the
packaging material and inform your supplier immedi-
ately.
3.1.3 Waste disposal
The crossed symbol of the rubbish bin
with wheels means, that a product inside
the European Union must be led into a
separate refuse collection. This norm is
valid for the product itself as well as for
all accessories marked with this symbol.
It is not allowed to dispose these prod-
ucts together with the unsorted domestic
waste.
•Dispose the packaging according to the customary
regulations!
•Dispose the cardboard packaging, the plastic protec-
tive packaging and the antidegradants separately
and professionally!
•The disposal of the device (as well as components
and utilities) depends on the local disposal regulation
and also on the national environment protection
laws.
•Dispose professionally, especially ecologically harm-
ful parts as batteries, accumulators and plastics for
example.
•If possible, use the original packing material for the
shipping.

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
5
4. SAFETY INFORMATIONS
DANGER
Danger of life and injury as well as
cause of property damage!
Read the operation instruction care-
fully before starting-up the device!
Pay attention to the general and the
special safety instructions!
There might be danger at:
•Disregard of the operation instruc-
tion including all the safety notes.
•Illegal intervention and modifications
of the device by the client.
•Use outside the valid surrounding
conditions.
•Use of inappropriate current supply
and external devices.
•Unintended usage of the device.
•Damage by electrostatic discharge
or lightning.
DANGER
Mortal danger by dangerous electri-
cal tension!
There might be danger at:
•Use of inappropriate current
supply and external devices.
•Damage by electrostatic dis-
charge or lightning.
•Do not lay the sensor line
nearby high voltage currant
lines.
•Take care of the leakage of the
electricity before touching the
sensor line.
DANGER
Caution in terms of explosive at-
mosphere or substances!
There might be danger of explosion
nearby fuel or chemicals!
Do not use the device inside detonation
areas or filling stations!
4.1.1 Special notes on use
•If the device is brought into the work-room from
a cold environment there is a risk that conden-
sation might form on the electronics. You are
advised therefore to wait until the device has
adjusted to the ambient temperature before
starting to use it.
•Be sure to observe the maximum load capacity
of the sensor power supply.
•Do not run sensor lines in the vicinity of high-
voltage power cables.
•Sensors with integrated power supply are not
electrically isolated from one another.
4.1.2 Handling batteries / rechargeable
batteries correctly
When inserting batteries / rechargeable
batteries ensure that these are correctly
polarized.
If the device will probably not be needed
for a relatively long period of time or if
the batteries are empty remove the bat-
teries; this will prevent battery acid spill-
ing on and damaging the device.
Rechargeable batteries should be re-
charged as and when necessary.
You should never attempt to recharge an
ordinary (non-rechargeable) battery; it
may explode!
Batteries / rechargeable batteries must
never be short-circuited or thrown on the
fire.
Batteries / rechargeable batteries are
special waste and must not be discarded
together with normal domestic waste.

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
6
5. INTRODUCTION
METEODIGIT IV is a new hand-held measuring instru-
ment of LAMBRECHT. The intelligent connector offers
decisive advantages when connecting sensors because
all parameters are stored in on the connector itself;
repeat programming is thus no longer necessary.
5.1 Functions
METEODIGIT IV has one electrically isolated measur-
ing input suitable for all LAMBRECHT sensors. For
operation purposes the device incorporates a large
LCD display and a keypad.
5.1.1 Sensor programming
The connector programs the measuring channels com-
pletely and automatically. Programming of the connec-
tor will be done during manufacture.
Accordingly programmed are:
- Measuring ranges
- Dimension (2-digit)
- Correction of measured values
- Scaling
All sensor data stored in the connector can be pro-
tected by means of a graduated locking function
against undesired access.
5.1.2 Measuring operations
The measurement input can be connected with double
sensors, individually scaled sensors and sensors with
function channels. You can move forwards or back-
wards from one measuring channel to the next using
the keypad. The data are shown constantly on the dis-
play.
Measured values
The measured value for the selected measuring point is
shown continuously with autozero and, as and when
necessary, with measured value correction.
Measuring functions
With some sensors, to achieve optimal measured value
acquisition, certain special measuring functions are
required. For certain sensors temperature compensa-
tion and atmospheric pressure compensation are avail-
able.
Maximum and minimum values
For each measuring operation the maximum value and
minimum value are acquired and saved to memory.
These values can then be displayed, output, or deleted
from memory.
Measured value memory
Up to 99 measured values can be saved manually.
These data can be shown successively on the display.
Differential measurement
It is possible, by setting the measured value to zero, to
perform relative measuring operations with respect to a
reference value.
6. INITIAL COMMISSIONING
1. Connect sensor to socket (M0) 1
2. Ensure that the power supply is provided with 3 AA
batteries
3. Switch ON by pressing key ON 4
4. Select measuring channels by pressing key M▲
4, read out measured values ( 3e)
5. Save the measured values by pressing key MEM
4
6. Relative measuring with respect to a reference
value or sensor adjustment by pressing keyCLR
4, return to normal measured value by pressing
and holding down key CLR
7. Evaluating a measuring operation
Call up maximum / minimum values by pressing
keys MAX /MIN 4.
To delete max. / min. values press and hold down
key MAX or MIN
7. POWER SUPPLY
Power can be supplied to the measuring instrument
with 3 AA alkaline batteries (included in delivery).
7.1 Battery operating and supply volt-
age monitoring
At a current consumption of approx. 16 mA the operat-
ing time will be approx. 150 hours. The current operat-
ing voltage is displayed each time the device is
switched on; this gives you a basis for estimating the
remaining operating time. When the remaining battery
capacity drops to approx. 10 percent, the LOBAT arrow
will appear on the display. If the batteries are
completely discharged the device will switch off. To
replace old batteries first unscrew the battery compart-
ment cover 5on the rear of the device.
7.2 Switching ON / OFF, reinitialization
To switch the device ON briefly press and release the
key ON OFFr4in the middle of the keypad; to switch
the device OFF press and hold down the key ON OFFr.
After the device is switched off all saved values and
settings are retained intact.
If interference (e.g. electrostatic) or a malfunction (e.g.
battery failure) causes the device to behave abnor-
mally, the device can be reinitialized.
To activate RESET press and hold down the key CLR r
when switching on. This will restore all settings – except
the device designation – to the factory default status.
8. CONNECTING THE SENSORS
All LAMBRECHT sensors can the connected to input
socket (M0) at the measuring instrument.

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
7
8.1.1 Sensors
All METEODIGIT IV-sensors usually have the measur-
ing range and units already programmed and can thus
be connected to any input socket without further ad-
justment. A mechanical coding system ensures that
sensors and output modules can only be connected to
the correct sockets. All connectors incorporate two
snap-lock levers; these snap into position as soon as
the connector is inserted into the socket, thus prevent-
ing unintended disconnection if the cable is accidentally
pulled. To withdraw the connector, both these levers
must be pressed in at the sides.
8.1.2 Measuring inputs and additional
channels
The measuring instrument has 1 input socket 1, to
which initially measuring channel M0 is assigned. Sev-
eral sensors can, however, if necessary, provide up to 4
channels. The additional channels are mainly usable for
humidity sensors with 4 measuring parameters (tem-
perature/ humidity/ dew point/ mixing ratio) or for func-
tion channels.
9. DISPLAY AND KEYPAD
9.1.1 Display
The display 2of the METEODIGIT IV is a 2-row LCD
arrangement; the main field comprises 5x 7-segment
digits (e) plus 2x 16-segment digits (d) for depicting the
measured value; the function field comprises 4½ 7-
segment digits (b) for depicting various measuring func-
tions (a); there are also 4 arrows (f) for depicting the
operating status.
Function field Æ
Main field Æ
Display of measuring functions in the function field
Measuring point:
Maximum value:
Minimum value:
Saved value:
Memory capacity:
Temperature value from double sensors:
Configuration of locking:
Configuration of automatic off:
Special operating states and faults
Display segment test:
Runs automatically after switch ON
Supply voltage:
Display after segment test
Supply voltage under 3.6 V:
Arrow
lights up
Relative measuring with respect to a reference value:
Arrow lights up
Sensor correction or scaling:
Arrow lights up
Unlocked to enable sensor adjustment:
Arrow
lights up
Checksum error in device calibration:
Non-connected sensors; deactivated measuring points:
Measuring range / function not permitted:
Overshoots value range (>65000):
flashes
Overshoots measuring range:
Maximum value flashes
Undershoots measuring range:
Minimum value flashes
9.1.2 Keypad
To operate the device a keypad with 7 keys is provided:
Function: Key
To switch ON the device: ON OFF
To switch OFF the device: ON OFF
Must be pressed
and held down
Measuring points selection:
M▲ or
M▼
Displaying the maximum value:
MAX
To delete press
and hold down
Displaying the minimum value:
MIN
To delete press
and hold down
Zero-setting the measured value:
CLR
To delete press
and hold down
Saving the measured value:
MEM
Displaying the battery voltage: ON OFF

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
8
10. MEASURING OPERATIONS
With METEODIGIT IV all available measuring channels
are scanned by default semi-continuously; this permits
continuous differential measurements. Depending on
sensor up to 4 measuring channels can be displayed.
10.1 Measuring value
After switching ON first of all a
segment test is performed; the
battery voltage appears and if
the batteries are almost empty
(<3.6V) the LOBAT arrow
also appears.
The measured value is then
displayed with the appropriate
units in the main field and the
measuring point is displayed in
the function field. All special
operating states possible for
the measured value are
explained in section 8.4.
10.1.1 Selecting a measuring point
By pressing key M▲ you can select one after the
other all active measuring points and have the current
measured value displayed for each. By pressing key
M▼ you can return to previous channel.
To increment the measuring channel press key: M▲
To decrement the measuring channel press: M▼
When switching between channels the abbreviation for
the measuring range is briefly displayed.
10.1.2 Measuring ranges
With each channel switchover or sensor breakage the
abbreviation for the measuring range appears in the
display. For identification purposes the following table
lists all possible measuring ranges.
Sensors Dim Abbr
Millivolt mV
U 55
Millivolt 1 mV
U 26
Millivolt 2 mV
U260
Volt V
U2.60
Difference millivolt mV
d 55
Difference millivolt 1 mV
d 26
Difference millivolt 2 mV
d260
Difference volt V
d2.60
Sensor voltage V
UbAt
Frequency Hz
FrEq
Function channels:
Maximum value of channel Mb1 Hi
Minimum value of channel Mb1 Lo
Measured value of Mb1 MESS
Cold junction temperature °C CJ
10.1.3 Double display
On all double sensors in-
corporating a temperature sen-
sor on the 1st channel the
temperature value can be
displayed in the function field
at the same time.
Select 2nd channel:
Activate temperature display: M▲ Press and hold down.
Return to channel display: M▲ Press and hold down.
10.2 Peak value memory
From the measured values
acquired for each measuring
point the highest and the lowest
values are continuously re-
corded. To display these high/
low peak values first the de-
sired channel must be set and
then the MAX or MIN key
must be pressed. As a check the display also includes
the associated symbol.
To display the maximum value press: MAX
To display the minimum value press: MIN
To delete the maximum value press and hold down: MAX
To delete the minimum value press and hold down: MIN
To return to the measuring point display press key: M▲
As soon as you clear the memory, the current measured
value will appear (because measuring is continuous).
10.3 Measured value memory
METEODIGIT IV can save 99 measured values in
memory locations P01 to P99. The measured data can
be shown on the display.
To save each such measured value press key MEM
The function field will show
the memory location for about
1 second e.g.: P02
The value most recently
saved then appears in the
function field preceded by the
symbol ´M´.
To return to the channel display press: M▲

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
9
To display all memory data press and hold down key MEM
The function field displays the
last memory location; the
main field displays the meas-
ured value.
To select the first memory location press: MIN
To select the last memory location press: MAX
To increment the memory location press: M▲
To decrement the memory location press: M▼
To clear the memory press: CLR
To terminate memory display press: MEM
10.4 Relative measuring
For certain measuring tasks it
is very useful to zero the
measured value in order to
observe just the subsequent
deviations. It is obligatory to
set zero for air flow measure-
ments by means of Pitot tubes
according to Prandtl.
This function is independent of the locking status and
does not modify the programming parameters in the
connector.
To zero-set the measured value press key: CLR
To display relative measuring with arrow:
Return to normal measured value press and hold down CLR
Setting to zero automatically deletes the maxi-
mum and minimum values for this channel. The
MAX, MIN, and MEM functions are thus also available
for relative measurement.
11. DEVICE CONFIGURATION
On METEODIGIT IV a num-
ber of parameters can be
configured. For doing this
press and hold down key
MEM when switching ON.
The function field should then
show an abbreviation for the
parameter and the main field
should show the value currently set.
To select from all possible parameters,
press keys: M ▲ or M ▼
Averaging time for measuring (MD)
Locking the CLR –key :
Automatic switch OFF time in minutes:
Air pressure for measuring value compensation:
To enter a value
first press: ON and the value starts flashing
To modify the value press keys:
M ▲ or M ▼
To delete parameters press:
CLR
Select the next digit or entry is completed:
ON
To terminate or cancel configuration:
MEM
11.1 Moving average
METEODIGIT IV offers all the possibilities to calculate
the average value. In the first menu item the averaging
term “MD” can be adjusted for the moving average (in
the example the measuring point M0). Possible values
for the averaging term are 1, 10, 20, 30, 40, 50, 60, 70,
80, 90, 100, 110, 120 s. The calculation of average
values will just be effected for the displayed channel.
The adjusted averaging term will be memorized inside
the plug of the sensor and is available again after
switching on the METEODIGIT IV or after connecting to
another METEODIGIT IV.
11.2 Device locking
The measured value in the main field of the display can
be manipulated by pressing key CLR and setting it to
zero. This function can be evaluated in different ways
or even switched off in cases where there is a risk of
accidentally activating relative measuring by zero-
setting the measured value.
Loc parameter:
0 The offset is saved in RAM, base of zero-point – de-
pending on locking
1 The offset in saved in RAM only.
2 Relative measuring is locked
11.3 Automatic switch OFF
In menu item ´AOFF´ an automatic device switch OFF
time can be programmed in minutes; this will help to
save the batteries. This automatic device switch OFF
will not take effect if the setting is ´- -´ or if a mains a-
dapter or an interface cable is connected.
11.4 Atmospheric pressure compensation
Measured variables dependent on the ambient atmos-
pheric pressure may, in the event of large deviations
from normal pressure (1013 mbar), involve certain
measuring errors.
It is advisable therefore, especially when taking meas-
urements at appreciable heights above sea level to
take due account of the atmospheric pressure (approx.
-11 mbar / 100 meters above mean sea level, MSL).
The appropriate atmospheric pressure can be entered
in parameter 'mb' in device programming.

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
10
12. TROUBLE SHOOTING
The METEODIGIT IV measuring instrument can be
configured and programmed in many versatile ways. It
is suitable for connecting a wide variety of different
sensors. Given these numerous possibilities the device
may in certain circumstances not behave quite as ex-
pected. The cause of such unexpected behaviour is
only very rarely a device defect; more usually it is incor-
rect operation by the user, an invalid setting, or unsuit-
able cabling. In such event try to pinpoint and clear the
problem with the aid of the following tests.
Error: No display, display malfunction, keys do not
react
Remedy: Check the power supply; replace the batter-
ies; switch off and then on again; if necessary
re-initialize (see 7.3).
Error: Measured values are incorrect.
Remedy : Switch Device OFF / ON, press key and hold
CLR . Check the entire sensor programming
very carefully, especially the base value and
zero-point.
Error: ´CALEr´is displayed when the device is
switched on
Remedy : The calibration of a measuring range may
have become misadjusted. The device must
be recalibrated at the factory.
If, after performing the above-listed checks and reme-
dial steps, the device still fails to behave as described
in the operating instructions, it must be returned to our
factory in Goettingen with error description.
13. DECLARATION OF CONFORMITY
Hereby we declare, that the METEODIGIT IV has got
the CE-Sign and that it meets the settlements of the low
voltage guideline as well as the essential protection
requirements regarding electromagnetical tolerance
89/336/EWG.
The following standards have been consulted for the
assessment:
EMC: IEC 61326:1997+A1:1998+A2:2000
IEC 61000-6-3:1996
IEC 61000-6-1:1997
IEC 61000-4-2: 1995+A1:1998+A2:2000
8kV
IEC 61000-4-4: 1995+A1:2000 2kV
IEC 61000-4-3: 1995+A1:1998+A2:2000
3V/m
IEC 61000-4-5: 1995+A1:2000
IEC 61000-4-6: 1996+A1:2000
IEC 61000-4-11: 1994+A1:2000
By undertaking any kind of non-agreed modification,
this declaration is no longer valid.
While extending the sensor line it is important to install
the sensor line separate from high voltage currant lines
or to install them together but professionally shielded in
order to avoid a coupling of interfering signals.
In operation it is important to pay attention to the follow-
ing lead:
While running the device in strong electromagnetical
fields, additional measurement errors can occur
(<50 μV at 3 V/m). After the irradiation the device oper-
ates again inside it’s technical specification.

OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
Subject to change without notice 09164_b-e.doc 51.16
LAMBRECHT meteo GmbH Tel [phone]
Friedländer Weg 65-67 Fax [phone]
37085 Göttingen E-Mail [email protected]
Germany Internet www.lambrecht.net
14. TECHNICAL DATA
Measuring inputs: 1 socket for all LAMBRECHT sensors
Measuring channels: 4 channels for double sensors, function channels
A/D converter: Delta-Sigma 16-bit, 2.5 M/s, adj. 1...100
Sensor power supply: 9 V, max. 150 mA
Standard equipment:
LC-display: Measured value: 5x 7-segment 15mm, 2x 16-segment 9 mm
Function: 4½ x 7-segment 9 mm, 9 symbols
Operation: 7 silicone keys
Memory: 99 measured values on the RAM
Power supply:
Batteries: 3
AA alkaline batteries
Current consumption: approx. 16 mA (without sensor)
DC-input: 10 ...30 V galvanically not separated
Housing: L 127 x B 83 x H 42 mm, ABS, weight: approx. 260 g
Suitable conditions:
Operating temperature: -10...+50 °C (storage temperature: -20 ...+60 °C)
Ambient relative humidity: 10...90 % r.h. (non-condensating)
14.1.1 Product overview
Product Id-No.:
Hand-held measuring instrument METEODIGIT IV for air flow and wind
speed, relative humidity and air temperature 00.09164.000 000
Sensor Id-No.:
Cup Anemometer 00.14423.490 000
Vane Generator Anemometer 00.14433.420 000
Vane Reed Contact Anemometer 00.14143.420 000
Differential pressure module for Pitot tubes acc. to Prandtl 0.5…40 m/s 32.09164.004 010
Differential pressure module for Pitot tubes acc. to Prandtl 1.8…90 m/s 32.09164.004 020
Accessories Id-No.:
Adapter for mains supply 32.09164.012 000
Transport case for one METEODIGIT IV and the sensors 00.14164.450
000 and 00.08163.420 000 as well as either 00.14423.490 000 or
00.14143.420 000 or 00.14433.4200 000 50.09164.002 000
Pitot tubes according to Prandtl, see manual or leaflet (628-631)