Knick Portavo 904X COND User manual

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Keep for future use.
Portavo® 904X MULTI
Portable Meter
User Manual

3
Basics
Returns
Clean and securely package the product before returning it to KnickElektronische
Messgeräte GmbH & Co. KG.
If there has been contact with hazardous substances, the product must be de-
contaminated or disinfected prior to shipment. The consignment must always be
accompanied by a corresponding return form to prevent service employees being
exposed to potential hazards.
Further information can be found at www.knick.de.
Disposal
The local codes and regulations must be observed when disposing of
the product.
Repair
The meter cannot be repaired by users. For inquiries regarding repairs, please
contact Knick Elektronische Messgeräte GmbH & Co. KG at www.knick.de.

4Table of Contents
Package Contents............................................................................... 6
Overview of the Portavo 904X MULTI .............................................. 7
Intended Use................................................................................................................7
Value-Added Features ..............................................................................................8
Protective Cover..........................................................................................................9
Hook................................................................................................................................9
Display.........................................................................................................................10
Keypad ........................................................................................................................11
Commissioning.................................................................................12
Inserting the Batteries ...........................................................................................12
Batteries for Application in Hazardous Locations........................................13
Connecting a Sensor..............................................................................................14
Switching On the Meter........................................................................................15
Icons.............................................................................................................................15
Conguration....................................................................................16
pH Conguration..................................................................................................... 16
Conductivity Conguration................................................................................. 17
Oxygen Conguration........................................................................................... 18
pH Calibration...................................................................................19
Conductivity Calibration..................................................................27
Oxygen Calibration ..........................................................................33
Measurement....................................................................................38
Toggling the Measurement Display ................................................................. 38
Data Logger ......................................................................................39
Operating Modes of the Data Logger (Logger Type) .................................40
Data Logger Menu..................................................................................................42
Conguring the Data Logger .............................................................................42
Conguring the Logger Type..............................................................................43
Starting the Data Logger using CONT............................................................. 44
Starting the Data Logger using START ...........................................................44
Displaying the Logger Data ................................................................................45

5
Table of Contents Table of Contents
Stopping the Data Logger ..................................................................................46
Clearing the Data Logger ....................................................................................46
Clock ..................................................................................................47
Options..............................................................................................48
Option 001 SOP (Standard Operating Procedure) ......................................48
Option 002 TEMP.CAL (Temperature Calibration)........................................48
Enabling Options / TAN Input............................................................................. 49
Access Codes for CONF, CAL, and Data Logger ............................................50
Inputting the Rescue TAN.....................................................................................51
Paraly SW112 PC Software..............................................................52
Error and Status Messages...............................................................53
“Sensoface” Messages............................................................................................54
Error Messages ......................................................................................................... 55
Product Line......................................................................................56
Accessories/Options............................................................................................... 56
Specications....................................................................................60
Buer Tables .....................................................................................67
Index..................................................................................................77

6Package Contents
Check the shipment for transport damage and completeness.
The Portavo 904XMULTI package includes:
• Meter, incl. premounted quiver
• 4 batteries (AA)
• Carrying strap
• USB cable, 1.5 m
• Quickstart overview for attaching to the inside of the protective cover
(German, English, French)
• Safety guide
• Quickstart guide in various languages
• Test report 2.2 according to EN 10204
• EU Declaration of Conformity
• Control drawing no. 209.009-110 (ATEX, IECEx, cFMus)
User manuals, certicates, the ParalySW 112 PC software, and other product
information can be downloaded from www.knick.de.

7
Intended Use
The Portavo 904X MULTI is a portable mul-
tiparameter meter for measuring pH, ORP,
conductivity, and oxygen. With a plain text
line on a high-contrast LCD, operation is
largely intuitive. The meter stands out by the
following features:
• Application in hazardous locations up to
Zone 0
• Use of digital Memosens sensors
• A detachable quiver protects the sensor
and prevents it from drying out. Further-
more, it can be used for calibration.
• The rugged housing is made of a
high-performance polymer. It provides
high impact resistance and dimensional
stability even when exposed to extreme
moisture.
Overview of the Portavo 904X MULTI
Quiver
• Scratch-proof clear glass display, perfectly readable even after years
• Very long operating time with one set of batteries (4x AA) for reliable operation
even at high or very low operating temperatures
• Data logger with 5000 values
• Micro USB port for communication with Paraly SW112 PC software for data
evaluation of digital sensors (Memosens)
• Sensoface icons provide single-glance information on the sensor condition
(page54)
• Real-time clock and indication of battery charging level

8Overview of the Portavo 904X MULTI
Value-Added Features
Memosens
The Portavo 904X MULTI can communicate with
Memosens sensors. These digital sensors are
automatically identied and the meter switches
to the appropriate measurement method. When a
Memosens sensor is connected to the meter, it is
indicated by the logo shown on the right. Further-
more, Memosens allows the storage of calibra-
tion data, which will be available and can still be
used when the sensor is connected to another
Memosens-capable device.
Sensoface
Sensoface provides quick information on the
sensor condition. The three“smiley” faces as shown
on the right represent the sensor condition during
measurement and after a calibration. When the
condition deteriorates, an “INFO …” message
provides additional information on the cause.
Automatic Calibration with Calimatic (pH)
Calimatic is a very convenient method for pH
calibration with automatic buer recognition. You
only have to select the buer set with the buers
used. The buers can then be used in any order.
As delivered, this calibration method is preset. It
can be adjusted or disabled in the conguration
menu.
Overview of the Portavo 904X MULTI

9
Protective Cover
The front of the meter is protected by a
cover, which can be completely ipped
over and secured to the back for oper-
ation. A label on the inner side of the
cover explains the control functions and
device messages.
Hook
A fold-out hook on the back allows the
meter to be suspended. This leaves your
hands free for the actual measurement.
The nameplate is located beneath the
hook.
Protective Cover and Hook
Combined
The two parts can be combined to form
a benchtop stand, enabling convenient
and fatigue-free work with the device at
a laboratory table or desk.
Overview of the Portavo 904X MULTIOverview of the Portavo 904X MULTI

10 Overview of the Portavo 904X MULTI
Display
The meter has a three-line display for
showing alphanumeric information
such as measurement and calibration
data, temperatures, and date/time.
Additional information is provided by
means of icons (Sensoface, battery
icon, etc.).
Some typical displays are shown here.
pH measurement
(display of measured value, tempera-
ture, date and time)
Oxygen calibration – step 1
(calibration in air)
Logger data for conductivity
(display of measured value, memory
location, temperature, date and time)
Clock
(display of hours and minutes, seconds
and date)
Oxygen calibration – step 2
(adjusting the relative humidity)
Overview of the Portavo 904X MULTI

11
Keypad
The keys of the membrane keypad have a
noticeable pressure point.
They have the following functions:
on/o Switches the meter on and
displays the device and
calibration data
(see Start-up)
meas Switches the meter on /
Activates measuring mode /
Data logger, stopping
cal Start calibration
set Activates conguration /
Conrms entries
clock Displays time and date, allows
setting the clock using set
RCL View stored values
STO Holds and saves a measured
value, allows setting and
starting of the logger by
pressing set (page 39)
When this icon is displayed,
you can use the arrow keys
for navigation.
Overview of the Portavo 904X MULTIOverview of the Portavo 904X MULTI

12 Commissioning
Inserting the Batteries
With four AA batteries, the Portavo has an
operating time of over 1000h.
Open the battery compartment on the
rear of the device. Be sure to observe the
correct polarity when inserting the batter‑
ies (see markings in the battery chamber).
Close the battery compartment cover and
fasten it nger tight.
Check the shipment for transport damage and completeness (see Package
Contents).
CAUTION!
Do not operate the device when one of the following conditions applies:
• the device shows visible damage
• failure to perform the intended function
• prolonged storage at temperatures above 70 °C / 158 °F
• after severe transport stresses
In this case, a professional routine test must be performed.
This test should be carried out at our factory.
Note on Use in Hazardous Locations
WARNING! Impairment of explosion protection.
• Only open the battery compartment of the Portavo 904X outside the hazardous
location.
• The device cannot be repaired by users. For inquiries regarding repairs, please
contact Knick Elektronische Messgeräte GmbH & Co. KG at www.knick.de.
• Never use the USB port within the hazardous location.
Commissioning

13
Commissioning Commissioning
WARNING! Impairment of explosion protection.
When using the Portavo 904X MULTI in a hazardous location, only the battery
types listed below may be used. The batteries must be from the same manufactur‑
er and of identical type and capacity. Never use new and used batteries together
(see also Control Drawing 209.009‑110).
Batteries for Application in Hazardous Locations
Batteries (4x each) Temp. class Ambient temperature range
Duracell MN1500 1) T4 ‑10 °C ≤ Ta ≤ +40 °C
Energizer E91 T3 ‑10 °C ≤ Ta ≤ +50 °C
Power One 4106 T3 ‑10 °C ≤ Ta ≤ +50 °C
Panasonic Pro Power LR6 T3 ‑10 °C ≤ Ta ≤ +50 °C
A battery icon in the display indicates the battery power level:
Icon fully lled Batteries at full capacity
Icon partially lled Battery capacity is sucient
Icon empty Battery capacity not sucient;
calibration is possible, no logging
Icon blinks Max. 10 operating hours remaining, measure‑
ment is still possible
NOTICE! It is absolutely necessary to replace
the batteries.
1) The Duracell Plus Power 4ct (EAN: 5000394017641) is an MN1500 battery.

14
Connecting a Sensor
The Portavo 904X MULTI provides several connections so that many types of sensors
can be used for measurement (see illustration below). Note that only one sensor
may be connected to the meter at a time. The meter recognizes the connected Mem-
osens sensor and displays the Memosens logo.
Separate Temperature Probe
Note: Temperature measurement using a separate temperature probe is only possi-
ble when no Memosens sensor is connected.
After power-on, a separate temperature probe is automatically recognized. If you
want to replace the temperature probe, you must switch o the meter and then
switch it on again.
Commissioning
Memosens sensors have a cable coupling, which allows convenient replacement of
sensors while the cable remains connected to the meter. Depending on the version,
the Memosens cables are connected to socket b(M8, 4 pins) or e(M12, 8 pins).
a b c d e Connections
a - Micro USB port
b - M8, 4 pins, for Memosens cable
c - Temperature probe GND
d - Temperature detector
e - M12, 8 pins, for Memosens cable
WARNING! Impairment of explosion protection.
Never use digital Memosens sensors or Memosens cables without Ex approval in a
hazardous location. For these applications, you must use Memosens sensors with Ex
approval. These sensors and the Memosens Ex cable are marked by an orange-red
ring.
Commissioning

15
Commissioning
Switching On the Meter
The meter can be switched on by pressing the meas or on/o key.
If you press meas, the meter immediately switches to measuring
mode.
After pressing the on/o key, the meter displays selected sensor
information, incl. adjustment data, before it switches to measuring
mode.
Depending on the connected sensor and the specic measuring task, several steps
for conguration and calibration must be performed as described on the following
pages.
Error message
Battery
charging level
Temperature
detector
Icons
Important information about the state of the device:
Process variable
Commissioning
Measured value
Sensoface
Memosens sensor Select menu items with arrow keys
DateLogger active Time Logger type

16
pH
pH Conguration
Conguration is required to match the connected sensor and the
desired measurement performance. Furthermore, you can select the
suitable calibration method. The following table gives you an over-
view. Factory settings are shown in bold print.
Measurement
“SETUP” view Select using arrow keys, conrm by pressing set.
pH x.xx | pH x.xxx | mV
OFF | Date + Time | Date | Time
OFF | 1 ... 99 days
CALIMATIC | MANUAL | DATA INPUT | ISFET-Zero | CAL SOP
(Option 001) | ORP OFFSET (for ORP or pH/ORP combo sen-
sors) | TEMP. OFFSET (Option 001) | FREE CAL
1 | 2| 3 | 1-2-3 (for CALIMATIC, Manual, FREE CAL)
-01- Mettler-Toledo 2.00|4.01|7.00|9.21
-02- Knick CaliMat 2.00|4.00|7.00|9.00|12.00
-03- Ciba (94) 2.06|4.00|7.00|10.00
-04- NIST Technical 1.68|4.00|7.00|10.01|12.46
-05- NIST Standard 1.679|4.006|6.865|9.180
-06- HACH 4.01|7.00|10.01|12.00
-07- WTW techn. buers 2.00|4.01|7.00|10.00
-08- Hamilton 2.00|4.01|7.00|10.01|12.00
-09- Reagecon 2.00|4.00|7.00|9.00|12.00
-10- DIN19267 1.09|4.65|6.79|9.23|12.75
-U 01- loadable via Paraly SW 112 (User)
OFF | 12h | 6h | 1h | 0.1h
°C | °F
24h | 12h
DD.MM.YY | MM.DD.YY
Enter TAN to enable option
(see page50)
OFF (0000) | 0001 ... 9999
(with option 001 SOP only, see page48)
NO | YES (reset to factory settings)
Note: All data logger entries will be deleted.
Conguration Conguration
This icon prompts you to select a menu item
using the arrow keys – the selection is conrmed by pressing set.

17
Cond
Conguration
Conductivity Conguration
Prior to measurement, a conguration should be performed to match
the connected sensor and the desired measurement performance.
Furthermore, you can select the suitable calibration method. The
following table gives you an overview. Factory settings are shown in
bold print.
This icon prompts you to select a menu item
using the arrow keys – the selection is conrmed by pressing set.
Measurement
“SETUP” view Select using arrow keys, conrm by pressing set.
Cond | Conc % | SAL g/kg | TDS mg/l | °C
OFF | Date + Time | Date | Time
OFF | On
mS/cm | S/m
0.0 … 1.0 (if display = TDS)
OFF | LINEAR | NAOH | NH3 | HCL | NACL | NLF
(if display = Cond)
0.0 … 20.0 %/K | 2.1 %/K (if TC = LINEAR)
0 … 100 °C | 25.0 °C (32 … 212 °F | 77 °F)
(if TC = LINEAR)
-01- ... -10- (if display = Conc %)
For concentration determination, see page 65
CELL CONST. | COND | 0.01 MOL KCL | 0.1 MOL KCL | INST.
FACTOR**)| ZERO POINT***)| TEMP. OFFSET (Opt.)| FREE CAL
OFF | 12h | 6h | 1h | 0.1h
°C | °F
24h | 12h
DD.MM.YY | MM.DD.YY
Enter TAN to enable option
(see page50)
OFF (0000) | 0001 ... 9999
(with option 001 SOP only, see page48)
NO | YES (reset to factory settings)
Note: All data logger entries will be deleted.
*) Temperature compensation **) With selected sensors
***) For inductive conductivity measurements only

18
Oxy
Conguration
Oxygen Conguration
Conguration is required to match the connected sensor and the
desired measurement performance. Furthermore, you can select the
suitable calibration method. The following table gives you an over-
view. Factory settings are shown in bold print.
Measurement
“SETUP” view Select using arrow keys, conrm by pressing set.
LIQU | GAS
Sat. %Air | Concentration in mg/l
(if MEAS MEDIUM = LIQU)
OFF | Date + Time | Date | Time
0.0 … 100.0% (if MEAS MEDIUM = GAS)
0… 4000 m
0.0 … 45.0 g/kg
AIR CAL | ZERO CAL | DATA INPUT | FREE CAL
OFF | 1 … 99 days
OFF | 12h | 6h | 1h | 0.1h
°C | °F
24h | 12h
DD.MM.YY | MM.DD.YY
Enter TAN to enable option
(see page50)
OFF (0000) | 0001 ... 9999
(with option 001 SOP only, see page48)
NO | YES (reset to factory settings)
Note: All data logger entries will be deleted.
This icon prompts you to select a menu item
using the arrow keys – the selection is conrmed by pressing set.

19
pH
Measurement
cal
CAL
CALIMATIC
Calibration method, the number of calibration points and
the buer set have been selected in the conguration
menu.
CAL 1/2/3
PRESS CAL
Immerse the sensor in the 1st/2nd/3rd buer solution.
It does not matter which buer solution is taken rst.
cal
pH, mV value,
temperature
Depending on the number of calibration points, the proce‑
dure described above for CAL 1/2/3 is repeated.
mV value blinks until calibration is completed, then successive display of:
CAL DATA
1/2/3 CAL POINTS
ZERO POINT
SLOPE
The meter then automatically returns to measuring mode.
CALIMATIC Calibration
(Calibration with automatic buer recognition)
The calibration method is selected in the conguration menu.
Calibration is required to adjust the sensor to the meter. It is indis‑
pensable for achieving comparable and reproducible measurement
results.
pH Calibration
Note: To abort calibration, you can press meas at any time. This will be conrmed
by the“CAL ABORTED”display message. Exception: When you have selected “CAL
POINTS 1‑2‑3”and the rst calibration step has been completed, the calibration
process cannot be stopped any more.

20
pH
Measurement
cal
CAL
MANUAL
The number of calibration points has been
selected in the conguration menu.
CAL 1/2/3
PRESS CAL
cal
pH display blinks
PRESS CAL
Take the temperature‑corrected pH value from
the buer description and enter it using  .
cal
mV display blinks
Depending on the number of calibration points,
the procedure described above for CAL 1/2/3 is
repeated.
mV value blinks until calibration is completed, then successive display of:
CAL DATA
1/2/3 CAL POINTS
ZERO POINT
SLOPE
The meter then automatically returns to measuring mode.
MANUAL Calibration
(Manual calibration)
The calibration method is selected in the conguration menu.
Note: To abort calibration, you can press meas at any time. This will be conrmed
by the“CAL ABORTED”display message. Exception: When you have selected “CAL
POINTS 1‑2‑3”and the rst calibration step has been completed, the calibration pro‑
cess cannot be stopped any more.
pH Calibration