Hydrotechnik MultiHandy 3020 User manual

MultiHandy 3020
Operating Instructions
Revision 1.1/ 09-09-30
TKZ L3160-00-72.00EN
EN

Inhalt
1 Safety.............................................................................................. 3
1.1 General Safety and Warning Hints ................................................................3
1.2 Hints for the Use of the Measuring Instrument..............................................3
1.3 Hints for the Use of Sensors and Cables.......................................................3
1.4 Hints for the Use of Batteries........................................................................4
2 Introduction.................................................................................... 4
2.1 Range of Validity ..........................................................................................4
2.2 Copyright.....................................................................................................4
2.3 Limitation of Liability....................................................................................4
2.4 Use as Agreed..............................................................................................5
2.5 Warranty Regulations...................................................................................5
2.6 Obligations to the Customer.........................................................................5
3 Delivery........................................................................................... 6
4 Description of the Measuring Instrument ..................................... 7
4.1 Qualities of the MultiHandy 3020 .................................................................7
4.2 Connectors ..................................................................................................7
5 Putting into Operation.................................................................... 8
6 Switch On and Off .......................................................................... 8
6.1 Switch On....................................................................................................8
6.2 Switch Off....................................................................................................9
7 Execute Measurements.................................................................. 9
7.1 Connect Sensors..........................................................................................9
7.2 Setup Instrument .......................................................................................10
7.3 Configure Channels....................................................................................13
7.4 Configure Display.......................................................................................15
7.5 Show Measured Values..............................................................................18
7.6 Shortcut Keys ............................................................................................19
8 Record Measured Values ............................................................. 19
8.1 Define Storage Parameters ........................................................................20
8.2 Record Values............................................................................................23
8.3 Further Recording Functions ......................................................................25
8.4 Transfer Measured Data to the PC..............................................................27
9 Maintenance................................................................................. 27
9.1 Care and Cleaning of the MultiHandy 3020 ................................................27
9.2 Reset MultiHandy 3020..............................................................................28
9.3 Calibration • Maintenance • Repair ...........................................................29
10 Technical Data.............................................................................. 30
10.1 Measuring Instrument................................................................................30
10.2 Pin Assignment of Signal Inputs .................................................................31
11 Accessories .................................................................................. 31
MultiHandy 3020
Operating Instructions
2Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

1 Safety
1.1 General Safety and Warning Hints
Never cut, damage or modify the connection cables of the power pack and do
not place things on it.
Never touch the power pack with wet or moist hands.
Connect the power pack to suited power supplies, only (see technical data).
Unplug the mains cord during a thunderstorm.
Unplug the mains cord if you detect smoke or smell, or if it is damaged.
Assure sufficient grounding of your installations. Inadequate grounding may
lead to measuring peaks.
1.2 Hints for the Operation of the Instrument
Never expose the instrument to excessive heat or moisture; obtain the require-
ments as stated in the technical data.
Do not store the instrument at humid or dusty locations or at temperatures
below freezing point.
Never dip the instrument into water or other liquids. Never let liquids come into
the instrument.
Never open the instrument.
Never use the instrument, if the casing is damaged.
Avoid strong magnetic fields. Keep distance of electric motors or other instru-
ments that generate electro-magnetic fields. Strong magnetic fields may cause
malfunctions and influence measured values.
Avoid the condensation of water. If there is condensed water, the instrument
must acclimate before you switch it on. Otherwise it could be damaged.
1.3 Hints for the Use of Sensors and Cables
Protect the sensors from exceeding the allowed power range, mechnical over-
load and wrong pin assignment.
Assure to enter the sensor parameters correctly when using sensors without
ISDS (Intelligent Sensor Detection System).
The measuring cables MK 01 and MKS may not be lengthened. Otherwise the
shielding will be interrupted.
The data of an ISDS sensor are transferred to the measuring instrument when it
is switched on. If you connect new sensors, you will have to switch the instru-
ment off and on.
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 3

1.4 Hints for the Use of Batteries
Keep batteries away from heat sources and open fire at any time.
Never dip batteries into water.
Never dismantle, repair or modify batteries.
Never short-circuit the contacts of a battery.
Only use the batteries installed or delivered by Hydrotechnik.
Only charge a battery when it is installed in the measuring instrument.
Dispose defective batteries as hazardous waste. Cover the contacts with insula-
tion tape.
2 Introduction
The information contained in this section is important. If you neglect them, you might loose
possible warranty claims.
2.1 Range of Validity
The operating instruction manual on hand is valid for measuring instruments named „MultiHandy 3020“.
It adresses to the operator of this instrument, that means the person, who works with the instrument. The
manual is not a technical manual. Please contact our service staff for questions, that exceed the contents
of this manual.
2.2 Copyright
The measuring instrument and this manual are protected on copyright. Manufacture without license will
be prosecuted by law. All rights reserved on this manual, even the reproduction and/or duplication in any
thinkable form, e.g. by photocopying, printing, on any data recording media or translated. Reproduc-tion
of this manual is only permitted with a written approval of Hydrotechnik GmbH.
The technical state by the time of delivery of instrument and manual is decisive, if no other information
is given. Technical changes without special announcements are reserved. Earlier manuals are no longer
valid.
The general conditions of sale and delivery of Hydrotechnik GmbH are valid.
2.3 Limitation of Liability
We guarantee the faultless functioning of our product in accordance with our advertising, the product
information edited by Hydrotechnik GmbH and this manual. Further product features are not guaranteed.
We take no liability for the economy and faultless function if the product is used for a different purpose
than that, described in the chapter „Use as Agreed“.
Compensation claims are generally impossible, except if intention or culpable negligence by Hydrotechnik
GmbH is proved, or if assured product features are not provided. If the product is used in environments,
for which it is not suited or which do not represent the technical standard, we are not responsible for the
consequences.
We are not responsible for damages at installations and systems in the surroundings of the product, which
are caused by a fault of the product or an error in this manual.
We are not responsible for the violation of patents and/or other rights of third persons outside the Federal
Republic of Germany.
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MultiHandy 3020
Operating Instructions
4Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

We are not liable for damages, which result from improper operation according to this manual. We are
not liable for missed profit and for consecuting damages due to non regardance of safety advice and
warning hints. We don’t accept liability for damages which result from the use of accessoires which are
not delivered and/or approved by Hydrotechnik GmbH.
The products of Hydrotechnik GmbH are designed for a long life. They represent the standard of technique
and science and were checked on all functions individually before delivery. The electrical and mechanical
construction corresponds to the current norms and regulations. Hydrotechnik GmbH is doing product and
market research for the further development and permanent improvement of their products.
In case of faults and/or technical trouble please contact the Hydrotechnik GmbH service staff. We assure
that suitable measures will be taken immediately. Hydrotechnik GmbH guarantee regulations are valid,
which we will send to you on demand.
2.4 Use as Agreed
The measuring instruments of the family „MultiHandy 3020“ are mobile hand-held devices for the coll-
ection and storage of measuring data. These are detected by sensors connected to the instrument. A
large variety of different sensors can be connected to the instrument, but they must correspond with the
requirements given in the section „Technical Data“.
Any other use of the measuring instrument is considered as not agreed.
If you have any question or want to use the measuring instrument for a different purpose, please do not
hesitate to contact our service staff. We will be pleased to help you.
2.5 Warranty Regulations
In accordance to our warranty regulations we guarantee the condition without defects for this measuring
instrument for a duration of six months. Wearing parts and storage batteries are excepted from this war-
ranty. The warranty is spoiled if repair work or interventions are executed by unauthorized persons.
Within the warranty period we repair damage or defects which are caused by a manufacturing fault. We
only accept warranty claims if they are reported to us immediately after their discovery, but latest six
months after delivery. The warranty benefit is by our choice through repair of defective parts or replace-
ment by intact parts.
Send your instrument with an invoice copy or delivery note copy to Hydrotechnik:
Hydrotechnik GmbH
Holzheimer Str. 94-96 • D-65558 Limburg • Tel. [phone]
2.6 Obligations to the Customer
The operating authority of this product has to assure, that only authorised persons may
use and operate this product. Persons are regarded as authorised, who have a qualified
education, technical experience, and knowledge of the current norms and regulations, what
enables them to estimate their duties and detect possible danger at an early time.
Operator of the Instrument
Persons are regarded as authorised that have been trained in the operation of the instru-
ment and have read and understood this manual completely.
Persons for Installation and Maintenance
Persons are regarded as authorised that have been trained in all aspects of the instrument
and have read and understood this manual completely.
MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 5

3 Delivery
The measuring instrument is dispatched by Hydrotechnik and carried and delivered by a
transport company. Since Hydrotechnik cannot take liability for a proper transportation, you
should check the following items when the product is delivered.
If the answer to one or several questions differs from the give must-answer, you should
complain about the delivery and write a damage report. There you should document all
claims and make additional photos. Let the representative of the transport company sign the
damage report. This is a good way to obtain all compensation rights against the transport
company.
Is the transport packaging undamaged? >>> YES
Does the transport packaging show any damage that suggests damage of the
contained goods? >>> NO
Does the transport packaging show any indication of humidity, burn marks or
other damage? >>> NO
Are all transport labels existent and readable? >>> YES
Range of Delivery
Unpack the measuring instrument and check the complete delivery according to the delive-
ry note. Normally the delivery comprises:
Measuring Instrument MultiHandy 3020
Power Pack 230 VAC, 50/60 Hz
USB-cable
Data-CD
If things are missing that should have been delivered according to the delivery note, you
should contact Hydrotechnik directly (address on the last page), or with your local Hydro-
technik partner.
4 Description of the Measuring Instrument
4.1 Qualities of the MultiHandy 3020
The MultiHandy 3020 is a valuable 3-channel measuring instrument that provides all func-
tions the user needs and expects to solve demanding tasks in the range of professional
measuring technology.
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MultiHandy 3020
Operating Instructions
6Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

When using HySense®sensors with ISDS signal, the measuring instrument auto-
matically detects the connected sensors during boot-up and takes over
all parameters: measuring range, physical measurand, units, output
signal and characteristic curve (linearisation). Mixed-up sensors
are avoided, the manual input of numerous data is superfluous.
Of course you can also connect sensors without ISDS signal to the
MultiHandy 3020. Then the input of the sensor parameters is done
in a clear operation menu.
The operation is done with a membrane keypad with 18 keys that you
can use to execute all required configurations in logically structured ope-
ration menus. Additionally you can program recordings and setup the display
of measured values.
You may connect up to three sensors at a time to the MultiHandy 3020, a fourth
pseudo channel is available for online calculations. The instrument is equipped with
an internal memory that can record up to one million measured values. You can con-
nect the instrument with a PC using the USB interface. The software HYDROcom (deli-
vered free of charge together with the instrument) allows the download of the measuring
data and their comfortable evaluation and presentation.
4.2 Connectors
Pic. 1 Connectors of the MultiHandy 3020
Measuring channel 3 (digital / frequency)
Measuring channel 2 (analog)
Measuring channel 1 (analog)
Power supply jack
USB interface
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 7

5 Putting into Operation
Important
Charge the battery of the instrument completely, before you use the
device without power pack. This assures the complete performance
of the battery.
Plug the round connector of the power pack into the power supply jack of the
MultiHandy 3020 (see section 4.2).
Plug the mains connector of the power pack into a socket.
Charge the battery of the instrument at least 10 hours without interruption.
Cut all connections of the power pack.
6 Switch On and Off
Information
Charge the battery at least 10 hours without interruption, before you
use the instrument without power pack. This assures the complete
performance of the battery.
6.1 Switch On
Press the key [ON] for about 0.5 seconds.
After two seconds this screen will be displayed:
MultiHandy 3020
(1045772 values)
Init
1.0a
SN: 1
Hydrotechnik GmbH
After a few seconds the measured value display appears:
p1
[bar] 236.40
p2
[bar] 55.90
Q1
[l/min] 213.40
dp1
[bar] 180.50
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MultiHandy 3020
Operating Instructions
8Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

Explanations to the measured value display and possible settings are contained in the fol-
lowing sections.
6.2 Switch Off
Important
Do not switch the instrument off while a recording is executed or data
are transferred to the computer. This would result in data losses, lost
data cannot be restored.
Press the key [OFF] for est. three seconds. The instrument will be switched off.
7 Execute Measurements
In this chapter we will describe, how you execute measurements with the MultiHandy 3020.
The chapter is divided in sections:
connect sensors
setup measuring instrument
configure channels
configure display
7.1 Connect Sensors
Information
The occupations of the input jacks is printed on the
bottom of the instrument.
Pic. 2 Connect sensors
Connect the desired sensors to the instrument. Be sure to have the centering
bar in upright position. Connect analog sensors only to channels 1 and 2, sen-
sors with digital (frequency) output signal may be connected to channel 3, only.
Connect the power pack to the power supply jack and a socket.
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 9

7.2 Setup Instrument
The menu „Device“ offers several functions for the adaption of the instrument:
Press [Menu].
[▼] [▲]Highlight „Measuring device“.
Press [Enter]:
***** Device ******
Language ►
Date / Time
ISDS
Company name
Min. Frequence:0.25Hz
7.2.1 Select Language
You can choose from several languages for the operation menus:
Press [Menu].
[▼] [▲]Highlight „Measuring device“ [Enter].
[▼] [▲]Highlight „Language“ [Enter]:
***** Language ******
* deutsch
english
francais
espanol
italiano
nederlands ▼
[▼] [▲]Highlight the desired language [Enter]. More languages below.
Press [ C ].
7.2.2 Set Date and Time
Date and time are stored together with the measuring data. This is way you should enter
correct values here:
Press [Menu].
[▼] [▲]Highlight „Measuring device“ [Enter].
[▼] [▲]Highlight „Date / Time“ [Enter]:
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MultiHandy 3020
Operating Instructions
10 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

**** Date / Time ****
Date : 28.05.2009
Time : 08:23
[▼] [▲]Highlight „Date“ [Enter].
Enter the day, e.g. [ 2 ] [ 8 ] [Enter].
Enter the month, e.g. [ 0 ] [ 5 ] [Enter].
Enter the year, e.g. [ 2 ] [ 0 ] [ 0 ] [ 9 ] [Enter].
[▼] [▲]Highlight „Time“ [Enter].
Enter the hour, e.g. [ 0 ] [ 8 ] [Enter].
Enter the minutes, e.g. [ 2 ] [ 3 ] [Enter].
Press [ C ].
7.2.3 ISDS Settings
The use of the Hydrotechnik ISDS system (Intelligent Sensor Detection System) for the au-
tomatic detection of connected sensors brings many advantages for the user. Here you can
select whether you want to use ISDS and which units shall be used:
Press [Menu].
[▼] [▲]Highlight „Measuring device“ [Enter].
[▼] [▲]Highlight „ISDS“ [Enter]:
******* ISDS ********
SensID?: yes
Unit : SI
[▼] [▲]Highlight „SensID?“.
Select whether you want to use ISDS („yes“) or not („no“) [Enter].
If you use ISDS, you may choose the desired units:
[▼] [▲]Highlight „Unit“.
Select whether you want to use international standard units („SI“) or US-ameri-
can units („US“) [Enter].
Press [ C ].
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 11

7.2.4 Enter Company Name
You may enter information that will be written into the series of measurements generated
by the instrument. This can be a company name, as example.
Characters are entered in the same way like at a cellphone. For an „N“ press [ 6 ] twice, for
an „Y“ three times [ 9 ]. Pressing [Menu] alters between capital and small letters. Press [ C
] to abort the input and use [▼] [▲]to jump to the prior / next digit. The special characters
@, © and & can be entered by pressing [ –. ].
Press [Menu].
[▼] [▲]Highlight „Measuring device“ [Enter].
[▼] [▲]Highlight „Company name“ [Enter]:
****** Company ******
Company:
© Hydrotechnik GmbH
info@
hydrotechnik.com
[▼] [▲]Highlight the first line [Enter].
Enter letters and other characters, confirm with [Enter].
[▼] [▲]Highlight the second line [Enter].
Enter letters and other characters, confirm with [Enter].
[▼] [▲]Highlight the third line [Enter].
Enter letters and other characters, confirm with [Enter].
Press [ C ].
7.2.5 Set Minimum Frequency
For the frequency input you may set the minimum frequency that shall be measured. All
smaller frequencies will be displayed as zero.
When using turbines for the measuring of volume flow rates, we recommend to set the
minimum frequency to „100 Hz“.When the system comes to idleness, the decay to zero will
be displayed with just a small time delay (10 ms). With a minimum frequency of 0.25 Hz,
„Zero“ would be displayed after four seconds.
For rotational speed measurements over 60 rpm with sensor and one reflection mark we
recommend a minimum frequency set to 1 Hz. Then all rotational speeds between 0 and 59
rpm will be displayed as „Zero“.
For rotational speeds over 14 rpm you will have to set the minimum frequency to 0.25 Hz.
Then all rotational speeds between 0 and 14 rpm will be displayed as „Zero“. If rotational
speeds below 14 rpm shall be measured, you will have to use multiple reflection marks.
The setting of the minimum frequency is a compromise between the required measuring
range and the desired dynamic in the detection of the measured value „Zero“.
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MultiHandy 3020
Operating Instructions
12 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

Press [Menu].
[▼] [▲]Highlight „Measuring device“ [Enter].
[▼] [▲]Highlight „Min. Frequence“ [Enter]:
** Measuring device *
Language
Date / Time
ISDS
Company name
Min.Frequence: 0.25Hz
[▼] [▲]Select the desired value [Enter].
Press [ C ].
7.3 Configure Channels
Information
No channel configurations are required when using sensors with
Hydrotechnik ISDS. All sensor parameters will be set automatically
when the instrument is switched on.
Open the menu „Channels“ to configure the measuring and the calculated channels:
Press [Menu].
Highlight „Channels“.
Press [Enter]:
***** Channels ******
C1: p1 (bar) ►
C2: p2 (bar)
C3: Q1 (l/min)
C4: dp1 (bar)
You get an overview over all channels with the current measurands and units.
7.3.1 Configure Analog Input Channels (C1 / C2)
Press [Menu].
[▼] [▲]Highlight „Channels“ [Enter].
[▼] [▲]Highlight „C1“ or „C2“ [Enter]:
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 13

***** Channel 1 *****
Variable : p1 (bar)
Sens.type: 0-20 mA
Measure Range
from : 0.000
to : 300.0
Zero point 0.000
[▼] [▲]Highlight „Variable“ [Enter].
[▼] [▲]Select the desired variable and units [Enter].
[▼] [▲]Highlight „Sens.type“ [Enter].
[▼] [▲]Select the output signal of the sensor [Enter].
[▼] [▲]Highlight „from“ [Enter].
Enter the lower limit of the measuring range of the sensor, e.g. [ 0 ] [Enter].
[▼] [▲]Highlight „to“ [Enter].
Enter the upper limit of the measuring range of the sensor,
e.g. [ 3 ] [ 0 ] [ 0 ] [Enter].
[▼] [▲]Highlight „Zero point“ [Enter].
If you want to execute a zero point equalisation, you have to be sure that the
sensor receives the value „0“, e.g. that there is no pressure. Then press [Enter].
Horizontal dashes are displayed in this line of the display, while the equalisation
is in execution. Then the equalised value will be displayed.
Press [ C ].
7.3.2 Configure Digital Input Channel (Frequency / K3)
Press [Menu].
[▼] [▲]Highlight „Channels“ [Enter].
[▼] [▲]Highlight „C3“ [Enter]:
***** Channel 3 *****
Variable : Q1 (l/min)
Value : 100.
[▼] [▲]Highlight „Variable“ [Enter].
[▼] [▲]Select the desired variable and units [Enter].
[▼] [▲]Highlight „Value“ [Enter].
[▼] [▲]Enter the calibration value of the sensor, e.g. [ 1 ] [ 0 ] [ 0 ] [Enter].
Press [ C ].
The calibration value is contained in the documentation of the sensor.
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MultiHandy 3020
Operating Instructions
14 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

7.3.3 Configure Calculated Channel (C4)
Press
[Menu] .
[▼] [▲] Highlight „Channels“ [Enter] .
[▼] [▲] Highlight „C4“ [Enter] :
***** Channel 4 *****
Formula : C1-C2
d-Align.: 000.0
[▼] [▲] Highlight „Formula“ [Enter] .
[▼] [▲] Select the formula for the desired calculation [Enter] .
[▼] [▲] Highlight „d-Align.“. This function automatically determines the
measured value difference between the channels used in the formula and takes
it as Offset.
Assure that both sensors are exposed to the same measured value (e.g. the
same pressure). Then press
[Enter] to align the sensors .
Press
[ C ] .
Available formulas
UNDEF no calculation will be executed
C1–C2 difference of the measured values from channel 1 and 2 (e.g. delta-P)
C1+C2 sum of the measured values from channels 1 and 2
dC1/dT calculated the first differentiation of the measured values from channel 1
dC3/dT calculated the first differentiation of the measured values from channel 3
C1*C3/600 calculated the hydraulic capacity; the pressure p in bar must be measured
on channel 1 and the volume flow rate Q in l/min on channel 3
7.4 Configure Display
In the „Display“ menu you can decide, which channels are displayed. Additionally you can
define some other parameters:
Press
[Menu] .
[▼] [▲] Highlight „Anzeige“ [Enter] :
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 15

****** Anzeige ******
Kanäle auswählen ►
MinMax aktivieren
MinMax löschen
Kontrast :50%
Anzeigerate :1.00s
Beleuchtung :50%
7.4.1 Kanäle auswählen
Mit dieser Funktion legen Sie fest, welche Kanäle während der Messung angezeigt werden
sollen:
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Select channels“ [Enter]:
** Select channels **
C1 (p1 ) : yes
C2 (p2 ) : no
C3 (Q1 ) : yes
C4 (dp1) : yes
C1 - C4 : none
[▼] [▲] Highlight a channel.
Press [Enter] to toggle between „yes“ (channel will be displayed) and „no“
(channel will not be displayed).
Repeat steps 4. and 5. for all desired channels.
[▼] [▲] Highlight „C1 – C4“ and press [Enter] to toggle all channels simultane-
ously.
Press [ C ].
7.4.2 Enable MinMax
During measuring it is possible to display the measured minimal and maximal values of a
channel together with the current measured value. With this function you can enable this for
a single or all channels:
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Enable MinMax“ [Enter]:
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MultiHandy 3020
Operating Instructions
16 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

*** Enable MinMax ***
C1 (p1 ) : no
C2 (p2 ) : no
C3 (Q1 ) : no
C4 (dp1) : no
C1 - C4 : all
[▼] [▲] Highlight a channel.
Press [Enter] to toggle between „yes“ (MinMax is displayed) and „no“ (MinMax
is not displayed).
Repeat steps 4. and 5. for all desired channels.
[▼] [▲] Highlight „C1 – C4“ and press [Enter] to toggle the MinMax display for
all channels simultaneously.
Press [ C ].
7.4.3 Delete MinMax
Use this command to delete the MinMax buffer. After deleting, the measuring instrument will
start instantly to store the new minimal and maximal values.
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Delete MinMax“.
Press [Enter] to delete the MinMax buffer. Dashes „-----“ will be displayed in
this line of the display during the deletion process.
7.4.4 Set Contrast
Use this command to tune the contrast of the display.
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Contrast“ [Enter].
[▼] [▲] Set the desired contrast level [Enter].
7.4.5 Set Display Rate
This function defines, how often the display is updated with new measured values.
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Display rate“ [Enter].
[▼] [▲] Select the desired display rate [Enter].
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 17

7.4.6 Set Illumination
With this command you can modify the illumination of the display.
Press [Menu].
[▼] [▲] Highlight „Display“ [Enter].
[▼] [▲] Highlight „Illumination“ [Enter].
[▼] [▲] Select the desired illumination level [Enter].
7.5 Display Measured Values
After terminating the definition of the parameters, press [ C ] (repeatedly), to leave the ope-
ration menus. Then the current measured values will be displayed:
Four channels with MinMax values
p1^ 83.5/ 135.7φMeasurand p1, ^ indicates MinMax values 83.5 resp. 135.7
122.2 [bar] current measured value of p1. units in [ ]
p2^ 37.3/ 148.6 Measurand p2, ^ indicates MinMax values 37.3 resp. 148.6
51.1 [bar] current measured value of p2. units in [ ]
Q1^ 254.7/ 339.3 Measurand Q1, ^ indicates MinMax values 254.7 resp. 339.3
301.4 [l/min] current measured value of Q1. units in [ ]
dp1^ -23.8/ 84.89 Calculated variable dp1, ^ indicates MinMax values -23.8 resp. 84.89
71.11 [bar] current value of dp1. units in [ ]
The icon φindiscates that the power supply is achieved from the power pack.
Four channels without MinMax values
p1
[bar] 122.4 Measurand p1, current measured value of p1
units in [ ]
p2
[bar] 51.1 Measurand p2, current measured value of p2
units in [ ]
Q1
[l/min] 338.2 Measurand Q1, current measured value of Q1
units in [ ]
dp1
[bar] 71.22 Calculated variable dp1, current value of dp1
units in [ ]
The icon indicates that the instrument is supplied by battery. Here the battery charging
level is approximately 50 %.
Two channels without MinMax
p1
[bar]
122.4
p2
[bar]
51.1
1.
2.
3.
4.
MultiHandy 3020
Operating Instructions
18 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved

7.6 Shortcut Keys
During the measured values are displayed, some keys are occupied with shortcuts:
[ 1 ] toggles the display of channel 1
[ 2 ] toggles the display of channel 2
[ 3 ] toggles the display of channel 3
[ 5 ] toggles the display of the calculated channel (C4)
[ 9 ] [ 1 ] toggles the MinMax display of channel 1
[ 9 ] [ 2 ] toggles the MinMax display of channel 2
[ 9 ] [ 3 ] toggles the MinMax display of channel 3
[ 9 ] [ 5 ] toggles the MinMax display of channel 4
[ –. ] starts recording (see section 8.2.1)
[ 0 ] stops recording (see section 8.2.3)
[Enter] [ 1 ] opens the parameters of channel 1
[Enter] [ 2 ] opens the parameters of channel 2
[Enter] [ 3 ] opens the parameters of channel 3
[Enter] [ 5 ] opens the parameters of channel 4
8 Record Measured Values
The MultiHandy 3020 is equipped with an internal memory with a capacity of est. 1 million
measured values. The measured values are combined into series of measurements.
To be able to execute recordings in the intented way, the instrument required information
here denominated as „Recording Parameters“. These are:
Recording channels – the values of which channels shall be recorded?
Scan rate – which time intervals shall be between the recording of two values?
Recording time – how long shall values be recorded?
Trigger – is there a condition that shall be waited for, before the recording is
started?
In this chapter we will explain the definition of the recording parameters, first. The execution
of recordings will be shown, then.
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•
•
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MultiHandy 3020
Operating Instructions
Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved 19

8.1 Define Recording Parameters
Press [Menu].
[▼] [▲] Highlight „Recording“ [Enter]:
***** Recording *****
Start recording
Delete meas. data
Define parameters
View parameters
Available memory
[▼] [▲] Highlight „Define parameters“ [Enter]:
* Define parameters **
Select channels ►
Scan rate
Recording time
Trigger
8.1.1 Select Channels
Press [Menu].
[▼] [▲] Highlight „Recording“ [Enter].
[▼] [▲] Highlight „Define parameters“ [Enter].
[▼] [▲] Highlight „Select channels“ [Enter].
* Define parameters **
C1 (p1 ) : yes
C2 (p2 ) : yes
C3 (Q1 ) : yes
C4 (dp1) : no
C1 - C4 : none
[▼] [▲] Highlight a channel.
Press [Enter] to toggle between „yes“ (channel will be recorded) and „no“
(channel will not be recorded).
Repeat steps 5. and 6. for all desired channels.
[▼] [▲] Highlight „C1 – C4“ and press [Enter] to toggle between „yes“ and
„no“ for all channels simultaneously.
Press [ C ].
1.
2.
3.
1.
2.
3.
4.
5.
6.
7.
8.
9.
MultiHandy 3020
Operating Instructions
20 Operating Instructions MultiHandy 3020 • © Hydrotechnik GmbH • All rights reserved