Knick Portavo 904 User manual

Portavo® 904(X) COND
Portable Meter
User Manual
www.knick.de
Read before installation.
Keep for future use.

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 con-
tact Knick Elektronische Messgeräte GmbH & Co. KG at www.knick.de.

4Table of Contents
Package Contents............................................................................... 6
Overview of the Portavo 904(X) COND ............................................ 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
Calibration ........................................................................................17
Measurement....................................................................................23
Toggling Between Compensated and
Uncompensated Measured Values ................................................................... 23
Manually Adjusting the Temperature ..............................................................23
Data Logger ......................................................................................24
Operating Modes of the Data Logger (Logger Type) ................................. 25
Data Logger Menu.................................................................................................. 27
Conguring the Data Logger .............................................................................27
Conguring the Logger Type..............................................................................28
Starting the Data Logger using CONT.............................................................29
Starting the Data Logger using START ...........................................................29
Displaying the Logger Data ................................................................................30
Stopping the Data Logger ..................................................................................31
Clearing the Data Logger ....................................................................................31

5
Table of Contents Table of Contents
Clock ..................................................................................................32
Options..............................................................................................33
Option 001 SOP (Standard Operating Procedure) ......................................33
Option 002 TEMP.CAL (Temperature Calibration)........................................ 33
Enabling Options / TAN Input.............................................................................34
Access Codes for CONF, CAL, and Data Logger ............................................35
Inputting the Rescue TAN.....................................................................................36
Paraly SW 112 PC Software..............................................................37
Error Codes and Device Messages...................................................38
“Sensoface” Messages............................................................................................39
Error Messages ......................................................................................................... 40
Product Line......................................................................................41
Accessories/Options............................................................................................... 41
Conductivity Sensors .............................................................................................42
Conductivity Standards.........................................................................................42
Specications....................................................................................43
Index..................................................................................................47

6Package Contents
Check the shipment for transport damage and completeness.
The package of the Portavo 904(X) COND 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
For Portavo 904X COND Ex version:
• 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 infor-
mation can be downloaded from www.knick.de.

7
Intended Use
The Portavo 904(X) COND is a portable
conductivity meter. With a plain text line
on a high-contrast LCD, operation is largely
intuitive. The device variant 904X COND
is available for applications in hazardous
locations up to Zone 0.
The meter stands out by the following
features:
• 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 904(X) COND
Quiver
• Scratch-proof clear glass display, perfectly readable even after years
• Very long operating times with one set of batteries (4x AA) or use of a Li-ion bat-
tery for reliable operation even at high or very low operating temperatures (Li-ion
battery not suited for Portavo 904X COND for application in hazardous locations)
• Data logger with 5000 values
• Micro USB port for communication with Paraly SW 112 PC software for data evalu-
ation of digital sensors (Memosens)
• Sensoface icons provide single-glance information on the sensor condition
(page39)
• Real-time clock and indication of battery charging level
• At measuring temperatures from -20 to +100 °C the temperature detector can be
automatically identied.

8Overview of the Portavo 904(X) COND
Value-Added Features
Memosens
The Portavo 904 can communicate with Mem-
osens sensors. These digital sensors are auto-
matically 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 calibration
data, which will be available and can still be used
when the sensor is connected to another Memos-
ens-capable device.
Sensoface
Sensoface provides quick information on the sen-
sor 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 pro-
vides additional information on the cause.
Overview of the Portavo 904(X) COND

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 904(X) CONDOverview of the Portavo 904(X) COND

10
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.
Measuring
(display of measured value and tem-
perature)
Calibration
(Calibration by entry of cell constant)
Logger data
(display of measured value, memory
location, temperature, date and time)
Clock
(display of hours and minutes, seconds
and date)
Calibration
(with KCl solution)
Overview of the Portavo 904(X) CONDOverview of the Portavo 904(X) COND

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 Commissioning)
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 24)
When this icon is displayed,
you can use the arrow keys
for navigation.
Overview of the Portavo 904(X) CONDOverview of the Portavo 904(X) COND

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.
A special lithium-ion battery (ZU 0925) suited to the battery compartment is avail-
able for the Portavo 904. Only this battery type can be charged directly from the
USB port.
Note: Not available for the Portavo 904X (device variant for applications in
hazardous locations).
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.

13
Commissioning Commissioning
WARNING! Impairment of explosion protection.
When using the Portavo 904X (device variant for applications in hazardous loca-
tions) in a hazardous location, only the battery types listed below may be used.
The batteries must be from the same manufacturer 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.

WARNING! Impairment of explosion protection.
Never use digital Memosens sensors without Ex approval in a hazardous location. For
these applications, you must use Memosens sensors with Ex approval. These sensors,
as well as the hazardous-area cables, are marked by an orange-red ring.
14
Connecting a Sensor
The Portavo 904(X) COND provides several connections so that many types of sen-
sors can be used for measurement (see illustration below).
Note that only one sensor may be connected to the meter at a time.
The meter automatically recognizes a connected Memosens sensor and switches
accordingly. Memosens is signaled in the display.
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.
a b c d e Connections
a - Micro USB port
b - M8, 4 pins for Memosens sensors
c - Temperature probe GND
d - Temperature probe
e - DIN socket, 8 pins for analog sensors
Commissioning
Memosens sensors have a cable coupling, which allows convenient replacement of
sensors while the cable remains connected to the meter. The connecting cable is
connected to socket b(M8, 4 pins for Memosens sensors).

15
Commissioning
Switching On the Meter
When you have connected the sensor, you can switch on the meter
by pressing the meas or on/o key.
If you press meas, the meter immediately switches to measuring
mode.
Analog sensors:
After pressing the on/o key, the meter displays selected adjust-
ment data before it switches to measuring mode.
Memosens sensors:
After pressing the on/o key, the meter displays selected sensor
information, incl. adjustment data, before it switches to measuring
mode.
Alternating Use of Analog and Memosens Sensors
The meter initially starts in analog measuring mode. If a Memosens sensor is con-
nected and detected during operation, the meter switches to Memosens.
If the Memosens sensor is now removed, the meter remains in Memosens mode. If
you want to resume measurements with an analog sensor, the meter needs to be
restarted by pressing the on/o key. The Memosens cable may remain connected.
Error message
Battery
charging level
Sensoface
Temperature
detector
Icons
Important information about the state of the device:
Process variable
Uncompensated measured value in MΩ cm
or temperature compensation (TC)
Toggle by pressing meas.
Commissioning
Memosens sensor Select menu items with arrow keys

16
Press the set key to access conguration mode.
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.
Measurement
set
“SETUP” view
set
Select using arrow keys, conrm by pressing set.
DISPLAY 1 Cond | Conc % | SAL g/kg | TDS mg/l | °C
DISPLAY 2 OFF | Date + Time | Date | Time
MOHM cm OFF | On
COND UNIT mS/cm | S/m
TDS FACTOR 0.0 … 1.0 (if display = TDS)
TC*)OFF | LINEAR | NAOH | NH3 | HCL | NACL | NLF
(if display = Cond)
TC LINEAR 0.0 … 20.0 %/K | 2.1 %/K (if TC = LINEAR)
REF TEMP 0 … 100 °C | 25.0 °C (32 … 212 °F | 77 °F)
(if TC = LINEAR)
CONC TABLE -01- ... -10- (if display = Conc %)
For concentration determination, see page2145
CAL CELL CONST. | COND | 0.01 MOL KCL | 0.1 MOL KCL | INST.
FACTOR**)| ZERO POINT***)| TEMP. OFFSET (Opt.)| FREE CAL
AUTO OFF OFF | 12h | 6h | 1h | 0.1h
TEMP UNIT °C | °F
TIME FORMAT 24h | 12h
DATE FORMAT DD.MM.YY | MM.DD.YY
TAN TEMP CAL Enter TAN to enable option
(see page34)
TAN SOP
SETUP CODE OFF (0000) | 0001 ... 9999
(with option 001 SOP only, see page35)
CAL CODE
LOGGER CODE
DEFAULT NO | YES (reset to factory settings)
Note: All data logger entries will be deleted.
*) Temperature compensation **) With selected sensors
***) For inductive conductivity measurements only
This icon prompts you to select a menu item using the arrow keys – the selec-
tion is conrmed by pressing set.
Conguration

17
Calibration
Measurement
cal
CAL
CELL CONST.
The conductivity will be shown in the display and
can be compared with a reference solution (tem-
perature-corrected).
Value blinks Use  to set the cell constant value.
cal
Calibration is performed. Display: CELL CONSTANT.
The meter then automatically returns to measuring mode.
CELL CONST Calibration
(Calibration by entry of cell constant)
The calibration method is selected in the conguration menu.
Measurement
cal
CAL
COND
Dip sensor in solution.
Value blinks Use  to set the temperature-corrected conduc-
tivity value. Note: Here, the meter does not perform
a temperature compensation!
cal
Calibration is performed. Display: CELL CONSTANT.
The meter then automatically returns to measuring mode.
COND Calibration
(Calibration by entry of conductivity)
The calibration method is selected in the conguration menu.

18 Calibration
0.1 / 0.01 MOL KCL Calibration
(Automatic calibration with KCl solution)
The calibration method is selected in the conguration menu.
Measurement
cal
CAL
0.1/0.01 MOL KCL
PRESS CAL
Dip sensor in KCl solution.
The meter automatically compensates for the
temperature deviation!
cal
Measured value
Temperature
Conductivity KCl
Hourglass blinks
Calibration is performed.
Display: CELL CONSTANT.
The meter then automatically returns to measuring mode.
Calibration
Important notes:
• Make sure that the values of the calibration solutions used correspond exactly
to those specied in this manual.
If not, the resulting cell constant will be incorrect.
• When calibrating in a liquid, make sure that the conductivity sensor, any sepa-
rate temperature probe, and the calibration solution have the same tempera-
ture. Only this ensures that the cell constant is determined correctly.
Note: To abort calibration, you can press meas at any time.

19
Measurement
cal
CAL
INST. FACTOR
In narrow installation conditions, the conductivity
measurement is inuenced by the sensor’s distance
to the wall and the wall material. This eect can be
compensated for by the installation factor. The meter
corrects the cell constant by multiplying it with the
installation factor. The value of the installation factor
depends on the diameter and the conductivity of the
pipe as well as on the sensor’s distance from the wall.
If the distance from the wall is sucient (>15mm
(0.59"), DN80 or larger), it is not necessary to consid-
er the installation factor (1.00). If the distance from
the wall is smaller, the installation factor increases
(>1) when the pipe is electrically insulating and de-
creases (<1) when the pipe is electrically conductive.
See the instructions in the sensor manufacturer’s
documentation.
cal
Value blinks Use  to set the installation factor.
cal
Calibration is performed.
Display: CELL CONSTANT, INST. FACTOR.
The meter then automatically returns to measuring mode.
INST. FACTOR Calibration
(For inductive conductivity measurement only or with Memosens
4-electrode sensor with specication of installation factor)
Selected in the conguration menu.
CalibrationCalibration
Note: To abort calibration, you can press meas at any time.

20
Measurement
cal
CAL
ZERO POINT
Remove the sensor for calibration and place it in
air – then start calibration.
cal
The“hourglass”icon blinks
until the zero point has been
calculated:
Calibration is performed.
Calibration is performed.
Display: CELL CONSTANT, ZERO POINT, INST. FACTOR.
The meter then automatically returns to measuring mode.
ZERO POINT Calibration
(For inductive conductivity measurement only:
calibrating the sensor zero point)
Selected in the conguration menu.
Note: To abort calibration, you can press meas at any time.
CalibrationCalibration