Stratos e 2211 (X) pH
70085_E_2211pH.QXD
14.12.2005
Stratos®
11:51 Uhr
Seite 1
2211 (X) pH
Instruction manual
70085
70085_E_2211pH.QXD
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Warranty
Defects occurring within 3 years from delivery date shall be remedied free
of charge at our plant (carriage and insurance paid by sender).
Sensors, fittings, and accessories: 1 year.
Subject to change without notice.
Return of products under warranty
Please contact our Service Team before returning a defective device. Ship
the cleaned device to the address you have been given. If the device has
been in contact with process fluids, it must be decontaminated/disinfected
before shipment. In that case, please attach a corresponding certificate, for
the health and safety of our service personnel.
Disposal
Please observe the applicable local or national regulations concerning the
disposal of “waste electrical and electronic equipment”.
Knick
Elektronische Messgeräte
GmbH & Co. KG
P.O. Box 37 04 15
D-14134 Berlin
Phone: +49 (0)30 - 801 91 - 0
Fax:
+49 (0)30 - 801 91 - 200
Internet: http://www.knick.de
knick@knick.de
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Contents
Safety information . . . . . . . . . . . . . . . . . . . . . . . . . 5
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
EC Declaration of Conformity. . . . . . . . . . . . . . . . . 8
Conformity with FDA 21 CFR Part 11 . . . . . . . . . . . 9
EC-Type-Examination Certificate. . . . . . . . . . . . . . 10
Overview of Stratos e 2211 X pH . . . . . . . . . . . . . 13
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Mounting plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pipe mounting, panel mounting . . . . . . . . . . . . . . . . . .16
Installation and connection . . . . . . . . . . . . . . . . . 18
Information on installation . . . . . . . . . . . . . . . . . . .18, 20
Terminal assignments . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Wiring examples pH . . . . . . . . . . . . . . . . . . . . . . . . . . .22
ORP wirings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
User interface and display . . . . . . . . . . . . . . . . . . 36
Operation: Keypad . . . . . . . . . . . . . . . . . . . . . . . . . 38
Safety functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Sensocheck, Sensoface sensor monitoring . . . . . . . . . . .39
GainCheck device self test . . . . . . . . . . . . . . . . . . . . . . .39
Automatic device self-test . . . . . . . . . . . . . . . . . . . . . . .39
Hold mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
(Loop current, HART communication, Alarm)
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Menu structure of configuration . . . . . . . . . . . . . . . . . .43
Overview of configuration steps . . . . . . . . . . . . . . . . . .44
Current output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Temperature compensation . . . . . . . . . . . . . . . . . . . . . .54
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Calibration mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Passcodes according to FDA 21 CFR Part 11 . . . . 62
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
pH calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Zero point adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .66
Automatic calibration with Calimatic . . . . . . . . . . . . . . .68
Manual calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Data entry of premeasured electrodes . . . . . . . . . . . . . .72
Product calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
ORP calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Adjusting temp probe . . . . . . . . . . . . . . . . . . . . . . . . . .78
Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Diagnostics functions . . . . . . . . . . . . . . . . . . . . . . 79
Operating states. . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Error messages (error codes) . . . . . . . . . . . . . . . . 82
Calibration error messages . . . . . . . . . . . . . . . . . . . . . .84
Sensoface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Product line and accessories . . . . . . . . . . . . . . . . . . . . .88
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Buffer tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
FM Control Drawing . . . . . . . . . . . . . . . . . . . . . . . . . .104
Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . .106
CSA Control Drawing . . . . . . . . . . . . . . . . . . . . . . . . .108
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
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Safety information
Be sure to read and observe the following instructions!
The device has been designed using state of the art technology
and it complies with the applicable safety regulations.
When operating the device, certain conditions may nevertheless lead to danger for the operator or damage to the device.
Caution!
Commissioning may only be carried out by trained experts.
Whenever it is likely that protection has been impaired, the
device shall be made inoperative and secured against unintended operation.
The protection is likely to be impaired if, for example:
• the device shows visible damage
• the device fails to perform the intended measurements
• after prolonged storage at temperatures above 70 °C
• after severe transport stresses
Before recommissioning the device, a professional routine test
in accordance with EN 61010-1 must be performed. This test
should be carried out by the manufacturer.
Caution!
Before commissioning it must be proved that the device may
be connected with other equipment.
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Safety precautions for installation
• Be sure to observe the stipulations of EN 60079-10 /
EN 60079-14 during installation.
• The Stratos e 2211 pH is approved for
measurements in FM Class I Div 2 locations.
• The Stratos e 2211 X pH is approved for operation in
the following locations: ATEX, FM Zone 1 with measurement
in Zone 0, and FM Class I Div 1.
Connection to power supply units
• Stratos e 2211 pH: Before connecting this device to a
supply unit,make sure that its output voltage cannot exceed
30 V DC.
Do not use alternating current or mains power supply!
• Stratos e 2211 X pH: This device may only be connected
to an explosion-proof power supply unit (for input ratings
refer to annex of EC-Type-Examination Certificate).
For recommended power supply units see Pg.89.
Before commissioning it must be made sure that the connections to other equipment such as power supply unit and
cables are intrinsically safe.
Connecting terminals:
Suitable for single wires/flexible leads up to 2.5 mm2 (AWG 14).
Note for cleaning in the hazardous location
Within the hazardous location only clean the Stratos with a
moistened cloth to prevent electrostatic charging.
6
Stratos e 2211 (X) pH
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Intended use
The Stratos e 2211 (X) pH is used for pH/mV, ORP and temperature measurement in industry, environment, food processing and
sewage treatment. The rugged molded enclosure can be fixed
into a control panel or mounted on a wall or at a post.
The protective hood provides additional protection against direct
weather exposure and mechanical damage.
The Stratos can be easily replaced and it accepts commercially
available electrodes with a nominal zero point at pH 7 and Isfet
electrodes.
• Never use the Stratos e 2211 pH s approved for
measurements in FM Class I Div 2.
• The Stratos e 2211 X pH is approved for operation in
the following locations: ATEX, FM Zone 1 with measurement
in Zone 0, and FM Class I Div 1.
Trademarks
The following names are registered trademarks. For practical reasons they are shown without trademark symbol in this manual.
Stratos®
Sensocheck®
Sensoface®
Calimatic®
GainCheck®
Durafet® is a registered trademark of Honeywell.
InPro® is a registered trademark of Mettler-Toledo.
HART® is a registered trademark of the HART Communication
Foundation.
7
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Provided documentation:
XXXX (X)
Stratos®
Bedienungsanleitung
70084
• Instruction manual
Stratos®
XXXX X
Safety precautions . . . . . . . . . . . . . . 3
Sicherheitshinweise . . . . . . . . . . . . . 5
Consignes de sécurité . . . . . . . . . . . 7
Norme di Sicurezza . . . . . . . . . . . . . . 9
Avisos de seguridad . . . . . . . . . . . . 11
Turvallisuusohjeet . . . . . . . . . . . . . . 13
Säkerhetsanvisningar . . . . . . . . . . . 15
Sikkerhetsinstrukser . . . . . . . . . . . . 17
Veiligheidsvoorschriften. . . . . . . . . 19
Sikkerhedshenvisninger . . . . . . . . . 21
Indicações de segurança . . . . . . . . 23
Sigurnosne upute . . . . . . . . . . . . . . 25
Saugumo nurodymai. . . . . . . . . . . . 27
Wskazówki dotyczącebezpieczeństwa 29
Указания по безопасности . . . . . . 31
Bezpečnostní pokyny . . . . . . . . . . . 33
Biztonsági tudnivalók . . . . . . . . . . . 35
• Safety instructions /
• EC Declarations of Conformity
TE-194.100-XXX01
CAL CA. Sol
(BUF)
1100
Manuell
Manual
Manuel
0000
1100
1105
1001
1015
0000
1200
2222
5555
5556
5557
5559
7654
1989
CAL CA. Sol
(MAN)
1100
*
pH
Kurzanleitung
Cal-Info
Kalibrierung
Produktkalibrierung
Verschiebung Nullpkt.
Temp. Abgleich
Letzter Fehler
Konfigurierung
Sensormonitor
Stromgeber 1
Stromgeber 2
Relaistest
Regler manuell
Parametersatz 1/2
Paßzahl-Editor *
Short instructions
Cal Info
Calibration
Product calibration
Zero point adjustm.
Temp probe adjustm.
Last error
Configuration
Sensor monitor
Current source 1
Current source 2
Relay test
Manual controller
Parameter set 1/2
Passcode editor *
Instructions courtes
Cal-Info
Calibrage
Calibrage du produit
Réglage du point zéro
Réglage sonde temp.
Dernière erreur
Configuration
Contrôle capteur
Générateur courant 1
Générateur courant 2
Test des relais
Régulateur man.
Jeu de paramètres 1/2
Editeur code d´accès *
Fehlermeldungen
Steilheit /
Asymmetriepotential
Error messages
Slope /
Asymmetry potential
Messages d‘erreur
Pente /
Potentiel asymétrique
Drift der Meßkette
Electrode drift
Dérive électrode
Pufferlösung
Buffer solution
Solution tampon
Err 01:
Meßbereich pH
pH range
Gamme de mesure pH
Err 02:
Meßbereich mV
mV range
Gamme de mesure mV
Err 03:
Temperatur
Temperature
Température
Err 41:
Err 42:
Ausgangsstrom 1
zu klein
zu groß
Spanne
Ausgangstrom 2
zu klein
zu groß
Spanne
Sensocheck
Glaselektrode
Bezugselektrode
Spülsonde
Kommunikation
Cal-Fehler
Output current 1
too low
too high
Span
Output current 2
too low
too high
Span
Sensocheck
Glass electrode
Reference electrode
Rinsing probe
Communication
Cal error
Courant sortie 1
trop bas
trop haut
Plage
Courant sortie 2
trop bas
trop haut
Plage
Sensocheck
Electrode de verre
El. de référence
Sonde rincage
Communication
Erreur cal.
Err 98:
Cal / Conf-Daten
Cal / Conf data
Données Cal / Conf
Err 99:
Systemausfall
System failure
Défaillance système
Err 11:
Err 12:
Err 13:
Err 21:
Err 22:
Err 23:
Err 33:
Err 34:
Meß-Modus / Measuring mode / Mode mesure
*
*
*
*
*
*
*
*
*
*2-Leiter-Gerät konfigurierbar / 2-wire device configurable / appareil 2-fils configurable
grau/gray/gris: nur 4-Leiter-Gerät / 4-wire device only / appareil 4-fils seulement
Kalibrierung / Calibration / Calibrage
Automatisch
Automatic
Automatique
• Short instructions
Devices only:
• EC-Type Examination Certificate
8
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Conformity with FDA 21 CFR Part 11
In their directive “Title 21 Code of Federal Regulations, 21 CFR
Part 11, Electronic Records; Electronic Signatures” the US
American health agency FDA (Food and Drug Administration)
regulates the production and processing of electronic documents for pharmaceutical development and production. This
results in requirements for measuring devices used for corresponding applications. The following features ensure that the
measuring devices of the Stratos e 2211 Series meet the
demands of FDA 21 CFR Part 11:
Electronic Signature
Access to the device functions is regulated and limited by individually adjustable codes – “Passcodes” (for Passcode Editor
see Page 62, overview of factory settings on back of manual).
This prevents unauthorized modification of device settings or
manipulation of the measurement results. Appropriate use of
these passcodes makes them suitable as electronic signature.
Audit Trail
Every (manual) change of device settings can be automatically
documented. For that purpose, each change is marked by a
“Configuration Change Flag”, which can be interrogated and
documented via HART communication. Then the changed
device settings/parameters can also be retrieved and documented via HART communication.
9
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EC-Type-Examination Certificate
10
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11
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Stratos e 2211 (X) pH
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Overview of Stratos e 2211 (X) pH
EEx ia IIC
(2211 X pH)
1
Glass electrode
EEx ib IIC
(2211 X pH)
pH / mV
input
2
4
Auxiliary
electrode
5
Not
connected
6
RTD
7
2211 pH:
not connected
2211 X pH:
–
15
+
4 ... 20 mA
output
mA/
HART
Reference
electrode
RTD
14
8
Temp
input
16
EP
–3V
17
GND
18
+3 V
19
Power
supply
(ISFET)
13
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Assembly
Package contents
Check the shipment for transport damage and completeness.
The package should contain:
• Front unit of Stratos
• Lower case
• Bag containing small parts
• Instruction manual
• Specific test report
1
11
10
2
3
9
8
7 6
1
2
3
4
5
5
Jumper (2 piece)
Washer (1 piece), for conduit mounting:
Place washer between enclosure and
nut
Cable ties (3 pieces)
Hinge pin (1 piece), insertable from
either side
Enclosure screws (4 pieces)
4
6
7
8
9
10
11
Sealing inserts (1 piece)
Rubber reducer (1 piece)
Cable glands (3 pieces)
Filler plugs (3 pieces)
Hexagon nuts (5 pieces)
Sealing plugs (2 pieces):
for sealing in case of wall mounting
Fig.: Assembling the enclosure
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Mounting plan
105
144
15
144
27
42
84
21
43
1
80
2
1
2
72
32
6,2
3
3
4
Cable gland (3 pieces)
Breakthroughs for cable gland or
conduit 1/2“, dia 21.5 mm
(2 breakthroughs)
Conduits not included!
Breakthroughs for pipe mounting
(4 breakthroughs)
Breakthroughs for wall mounting
(2 breakthroughs)
4
Fig.: Mounting plan
15
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Pipe mounting, panel mounting
40
132
60
1
2
3
4
5
1
2
3
4
5
ZU 0276 protective hood (if required)
Hose clamps with worm gear drive to DIN 3017 (2 pieces)
Pipe-mount plate (1 piece)
For vertical or horizontal posts or pipes
Self-tapping screws (4 pieces)
Fig.: Pipe-mount kit (ZU 0274)
165
132
1
173
1
Fig.: ZU 0276 protective hood for wall and pipe mounting
16
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1
2
3
4
5
27
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Screws (4 pieces)
Gasket (1 piece)
Panel
Span pieces (4 pieces)
Threaded sleeves (4 pieces)
1
5
Panel cutout 138 x 138 mm
(DIN 43700)
4
2
1...22
3
Fig.: ZU 0275 panel-mount kit
17
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Installation and connection
Information on installation
• Installation may only be carried out by trained experts in
accordance with this instruction manual and as per applicable
local and national codes.
• Be sure to observe the technical specifications and input ratings.
• Be sure not to notch the conductor when stripping the insulation.
• All parameters must be set by a system administrator prior to
commissioning.
Connection to power supply units
• Stratos e 2211 pH: Before connecting this device to a
supply unit,make sure that its output voltage cannot exceed
30 V DC. Do not use alternating current or mains power supply!
• Stratos e 2211 X pH: This device may only be connected
to an explosion-proof power supply unit (for input ratings
refer to annex of EC-Type-Examination Certificate).
For recommended power supply units see Pg 89.
Terminals: suitable for single wires/flexible leads up to 2.5 mm2
(AWG 14).
Warning!
Additional safety precautions have to be taken for applications in
hazardous locations to CSA!
(See Pg 107 et seq.)
Division 2 wiring
The connections to the Stratos must be installed in
accordance with the National Electric Code (ANSINFPA 70) Division 2 hazardous (classified) location
non-incendive wiring techniques.
FM Control Drawing: Refer to page 104.
18
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Terminal assignments
Fig.: Terminal assignments of Stratos e 2211 pH
Fig.: Terminal assignments of Stratos e 2211 X pH
19
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4
7 mm
7 mm
70085_E_2211pH.QXD
13 mm
280 mm
5
1
2
3
1 Recommended stripping
lengths for multi-core cables
6
7
2 Recommended stripping
length for coaxial cable
3 Pulling out the terminals
using a screwdriver
(also see 7)
4 Cable laying in the device
5 Connecting lines for
loop current
6 Cover for electrode and
temperature probe terminals
7 Area for placing the screwdriver to pull out the
terminals
8
8 Connection of handheld
terminal
Fig.: Information on installation, rear side of device
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Wiring examples pH
Example 1:
• pH measurement with monitoring
of glass electrode
• VP connection
Jumper
e.g.
ZU 0313
cable
transparent
red
green
white
yellow/green
terminals 4+5!
e.g.
SE 533
22
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Example 2:
• pH measurement with monitoring of
glass and reference electrode
• VP connection
core+shield
transparent
red
green
white
e.g.
SE 533
e.g.
ZU 0318
cable
yellow/green
e.g.
ZU 0313
cable
e.g.
ZU 0073
23
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Wiring examples pH
Example 3:
• pH measurement with monitoring of
glass and reference electrode
• VP connection
transparent
red
blue
green
white
yellow/green
e.g.
ZU 0313
cable
e.g.
PETR 80
PETR 60
(Schott)
InPro3200SG
(Mettler-Toledo)
24
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Example 4:
• pH measurement with monitoring of
glass electrode
• SixPlug (former SMEK) connection
Jumper
e.g.
ZU 0551
cable
core
shield
green
white
yellow/green
terminals 4+5!
e.g.
SE 550
25
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Wiring examples pH
Example 5:
yellow/green
• pH measurement with monitoring of
glass and reference electrode
• SixPlug (former SMEK) connection
e.g.
SE 550
26
e.g.
ZU 0318
cable
core+shield
coax core
coax shield
green
white
e.g.
ZU 0551
cable
e.g.
ZU 0073
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Example 6:
e.g.
ZU 0551
cable
coax core
coax shield
yellow
green
white
yellow/green
• pH measurement with monitoring of
glass and reference electrode
• SixPlug (former SMEK) connection
e.g.
PETR 50
PETR 10
(Schott)
27
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Wiring examples pH
Example 7:
e.g.
device socket
ZU 0322
28
yellow
core
shield
blue
green
white
• pH measurement with monitoring of
glass and reference electrode
• Connection with SixPlug (former SMEK) connector socket
e.g. SE 550:
Jumper 4-5 if there is no auxiliary
electrode (Pt); glass electrode
can be monitored
e.g. PETR 50 (Schott):
Without jumper 4-5, if there is
an auxiliary electrode (Pt);
glass and reference electrode
can be monitored
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Example 8:
• pH measurement with monitoring
of glass electrode
Jumper
terminals 4+5!
Temperature
probe
Combination
pH electrode
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Wiring examples pH
Example 9:
• pH measurement with monitoring
of glass and reference electrode
Equipotential
bonding
electrode
Temperature
probe
30
Combination
pH electrode
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Example 10:
• pH measurement with Durafet electrode
Jumper
white / black
yellow
red / white
white
green
blue
black
terminals
4+5!
Do not connect:
orange
red
ZU 0536
(3.5 m)
SE 544/1
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Wiring examples pH
Example 11
• pH measurement with InPro3300 ISFET sensor
Jumper
pink
yellow
white
gray
green
yellow/green
brown
terminals 4+5!
ZU 0582
(5 m)
SE 545/1
32
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ORP wiring examples
Example 12:
• ORP measurement without monitoring
of reference electrode
Jumper
terminals 4+5!
e.g.
ZU 0318
cable
Temperature
probe
34
e.g. SE 535
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Example 13:
• ORP measurement with monitoring of
reference electrode
Jumper
terminals 2+5!
e.g.:
ZU 0318
cable
Temperature
probe
e.g. SE 535
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User interface and display
User interface
1
2
Display
Mode indicators (no keys),
from left to right:
- Measuring mode
- Calibration mode
- Alarm
- Wash contact (Model 2402 pH only)
- Configuration mode
36
3
4
5
6
7
Keypad
Coding
Rating plate
Model designation
Alarm LED
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Display
1
2
3 4
5
6
7
8
9
10
20
11
19
12
18
13
17 16 15
1
2
3
4
5
6
7
8
9
10
11
12
13
Mode code entry
Display of measured variable*
Temperature
Current output
Limit values
Alarm
Sensocheck
Calibration
Interval/response time
Wash contact
Measurement symbols
Proceed with enter
Bar for identifying the device
status, above mode indicators,
from left to right:
- Measuring mode
- Calibration mode
- Alarm
- Wash contact
- Configuration mode
14
14
15
16
17
18
19
20
Lower display
Manual temp indicator
Hold mode active
Waiting time running
Electrode data
Main display
Sensoface
* Not in use
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Operation: Keypad
Start, end calibration
Start, end configuration
Select digit position
(selected position flashes)
Edit digit
• Calibration:
Continue in program sequence
• Configuration: Confirm entries,
next configuration step
• Measuring mode: Display output current
Cal Info, display of asymmetry potential
and slope
Error Info: Display of last error message
+
38
Start GainCheck device self-test
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Safety functions
Sensocheck, Sensoface sensor monitoring
Sensocheck continuously monitors the sensor and lines.
Sensocheck can be switched off (Configuration, Pg 61).
Sensoface provides information on the electrode condition. The asymmetry potential (zero), slope and
response time during calibration are evaluated. The
three Sensoface indicators provide the user with information about wear and required maintenance of the
electrode.
GainCheck device self test
A display test is carried out, the software version is displayed
and the memory and measured value transfer are checked.
Start GainCheck device self-test:
+
Automatic device self-test
The automatic device self-test checks the memory and measured-value transfer. It runs automatically in the background at
fixed intervals.
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Safety functions
Hold mode
Display:
The Hold mode is a safety state during configuration and
calibration. The loop current is frozen (Last) or set to a fixed
value (Fix).
If the calibration or configuration mode is exited, the Stratos
remains in the Hold mode for safety reasons. This prevents
undesirable reactions of the connected peripherals due to
incorrect configuration or calibration. The measured value and
“HOLD” are displayed alternately. The Stratos only returns to
measuring mode after enter is pressed and a waiting time of
20 s has passed.
40
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Outputs
Loop current
The loop current is controlled by the process variable selected
in the configuration.
The current beginning and end can be set to represent any
desired value.
To check connected peripherals (e.g. limit switches, controllers), the loop current can be manually specified
(see Pg. 80).
HART communication
Stratos e 2211 (X) pH can be remote-controlled via HART communication. It can be configured using a handheld terminal or
from the control room. Measured values, messages and device
identification can be downloaded at any time. This allows easy
integration also in fully automatic process cycles.
A list of the HART commands can be found in the “Stratos e
2211(X) pH Transmitter-Specific Command Specification”:
www.knick.de.
Alarm
The alarm delay is configurable.
Error messages can also be signaled by a 22 mA loop current
(see Configuration, Pg 61).
The alarm LED on the front panel can be configured as follows:
HOLD off:
Alarm: LED flashing
HOLD on:
Alarm: LED on. HOLD: LED flashing.
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Configuration
In the Configuration mode you set the device parameters.
Activate
Activate with conf
Enter passcode “1200”
Edit parameter with and ,
confirm/continue with enter.
(End with conf enter.)
Hold
During configuration the Stratos
remains in the Hold mode for reasons of safety. The loop current is
frozen (at its last value or at a preset fixed value, depending on the
configuration), Sensoface is off,
mode indicator “Configuration” is
on.
HOLD icon
Input errors
The configuration parameters are
checked during the input. In the case
of an incorrect input “Err” is displayed for approx. 3 s. The incorrect
parameters cannot be stored. Input
must be repeated.
End
End with conf. The measured value
and Hold are displayed alternately,
“enter” flashes. End Hold mode with
enter . The display shows the measured value. The output current
remains frozen for another 20 s
(HOLD icon on, “hourglass” flashes).
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Menu structure of configuration
The configuration steps are assigned to different menu groups:
• Current output (code: o1.)
• Temperature compensation (code: tc.)
• Calibration mode (code: CA.)
• Alarm settings (code: AL.)
With the arrow keys you can jump between the individual menu groups.
Each menu group contains menu items for setting the parameters.
Example:
“o1.” is displayed with all menu items of the
“Current output” menu group.
Pressing enter opens a menu item. The values are edited using the arrow
keys. Pressing enter confirms/stores the settings.
Return to measurement: Press conf.
Select menu group
Menu group
Code Display
Current output
o1.
Select menu item
Menu item 1
Menu item 2
Menu item ...
Temperature
compensation
tc.
Calibration mode
CA.
Alarm
settings
AL.
Previous menu
group:
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Overview of configuration steps
Code
Menu
Selection / Default
out1
Current output
(Factory setting bold print)
o1.UnIT
Select measured variable
pH/ORP
o1.EL
(GLAS EL / FEt EL )
o1.4mA
Select electrode type
Enter current start (4 mA)
o1.20mA
Enter current end (20 mA)
- 2.00 ... 16.00 PH (14.00 PH)
- 1999 ... 1999 mV (0014 mV)
o1.FtME
Time constant of output filter
0000 ... 0120 SEC (0000 SEC)
o1.FAIL
22 mA signal in the case of error
ON / OFF
o1.HoLD
Signal behavior during HOLD
Last / Fix
o1.FIX
Enter fixed value
- 2.00 ... 16.00 PH (00.00 PH)
- 1999 ... 1999 mV (0000 mV)
000.0 ... 022.0 mA (021.0 mA)
tc
Temperature compensation
tc.UnIT
Select temperature unit
°C / °F
tc.rTD
Select temperature probe
Pt100/Pt1000/NTC30/NTC8.55/
Balco3000
tc.MEAS
Temp detection during meas
Auto/man
(man: -20.0 .... 200 °C) (025.0 °C)
(man: -004 ... 0392 °F) (0025 °F)
tc.CAL
Temp detection during cal
Auto/man
(man: -20.0 .... 200 °C) (025.0 °C)
(man: -004 ... 0392 °F) (0025 °F)
tc.LIN
Enter TC process medium
-19.00 ... 19.99 %/K (00.00 %/K)
CAL
Calibration mode
CA.SOL
Select calibration mode
BUF / MAN / DAT (-00-BUF)
CA.tiME
Enter cal timer interval
0000 ... 9999 h (0000 h)
ALrt
Alarm settings
AL.SnSO
Select Sensocheck
ON / OFF (OFF)
AL.dlY
Enter alarm delay
AL.LED
LED in HOLD mode
0000 ... 0600 SEC (0010 SEC)
ON / OFF (OFF)
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Individual settings
Code
Parameter
Setting
o1.UnIT
Unit pH/ORP
____________
____________
o1.EL
Electrode type
____________
____________
o1.4mA Current start
____________
____________
o1.20mA Current end
____________
____________
o1.FtME Filter time
____________
____________
o1.FAIL
____________
____________
22mA signal
o1.HoLD Hold behavior
____________
____________
o1.FIX
Fix current
____________
____________
tc.UnIT
Unit °C / °F
____________
____________
tc.rTD
Temp probe
____________
____________
tc.MEAS Measuring temp
____________
____________
tc.CAL
Calibration temp
____________
____________
tc.LIN
TC process medium ____________
____________
CA.SOL
Calibration solution ____________
____________
CA.tiME Calibration interval ____________
____________
AL.SnSO Sensocheck
____________
____________
AL.dLY
Alarm delay
____________
____________
AL.LED
LED Hold
____________
____________
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Configuration
Current output
Select type of electrode. Measurement procedure.
1
2
Current output:
3
1. Press conf key.
2. Enter passcode 1200.
3. Select Current output menu group
using arrow keys. All items of this
menu group are indicated by the
code “o1.”
4. Press enter to select menu,
edit with arrow keys (see Pg 47).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Select measured variable
4
Select electrode type
Enter current beginning
Enter current end
Set output filter
22 mA in the case of error
Signal behavior during HOLD
5
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Code Display
Action
o1.
Select configuration
(Press conf.)
Seite 47
Choices
Enter passcode “1200”
(Select position using arrow key After correct input a
welcome text (CONF) is
displayed for approx. 3 s
and edit number using key.
When the display reads “1200”,
press enter to confirm.)
The Stratos is in HOLD mode
(HOLD icon is on).
Select measured variable pH/ORP
Select with arrow key pH/ORP
Proceed with enter
Only with pH selected:
Select electrode type:
• Glass electrode
• ISFET electrode
Select with arrow key
Glass
(FEt EL)
Proceed with enter
Note: Characters represented in gray are flashing and can be edited.
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Configuration
Current output
Output current range. Current start. Current end.
1
2
Current output:
3
1. Press conf key.
2. Enter passcode 1200.
3. Select Current output menu group
using arrow keys. All items of this
menu group are indicated by the
code “o1.”
4. Press enter to select menu,
edit with arrow keys (see Pg 49).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Select measured variable
4
Select electrode type
Enter current start
Enter current end
Set output filter
22 mA in the case of error
Signal behavior during HOLD
5
48
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Code Display
Action
Choices
o1.
Current start
Enter lower end of scale, depending on measured variable selected
(pH or ORP)
Select with key, edit number
pH -2 ... 16
(-1999 mV
...
+1999 mV)
Current end
Enter upper end of scale, depending on measured variable selected
(pH or ORP)
Select with key, edit number
pH -2 ... 16
(-1999 mV
...
+1999 mV)
with key, proceed with enter
with key, proceed with enter
Assignment of measured values:
Current start and current end
Example 1: Range pH 0 ... 14
Example 2: Range pH 5 ... 7 .
Advantage: Higher resolution in range
of interest
[pH]
14
[pH]
7
Output current
0
Output current
5
4
20 [mA]
4
20 [mA]
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Configuration
Current output
Time constant of output filter
1
2
Current output:
3
1. Press conf key.
2. Enter passcode 1200.
3. Select Current output menu group
using arrow keys. All items of this
menu group are indicated by the
code “o1.”
4. Press enter to select menu,
edit with arrow keys (see Pg 51).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Select measured variable
4
Select electrode type
Enter current beginning
Enter current end
Set output filter
22 mA in the case of error
Signal behavior during HOLD
5
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Action
Seite 51
Choices
0s
Time constant of output filter
0 - 120 s
Default setting: 0 s (inactive).
To specify a time constant: Select
with key, edit number with key, proceed with enter
Time constant of output filter
To smoothen the current output, a low-pass filter with
adjustable filter time constant can be switched on. When there
is a jump at the input (100 %), the output level is 63 % after
the time constant has been reached.
The time constant can be set from 0 to 120 s.
If the time constant is set to 0 s, the current output follows the
input.
Note:
The filter acts on the current output, not on the display!
Time constant 0 to 120 s
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Configuration
Current output
Output current during Error and HOLD.
1
2
Current output:
3
1. Press conf key.
2. Enter passcode 1200.
3. Select Current output menu group
using arrow keys. All items of this menu
group are indicated by the code “o1.”
4. Press enter to select menu,
edit with arrow keys (see Pg 53).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Select measured variable
4
Select electrode type
Enter current beginning
Enter current end
Set output filter
22 mA in the case of error
Signal behavior during HOLD
5
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Action
Choices
22 mA signal for error message
Select with arrow key
Proceed with enter
OFF
(ON)
LAST
Output signal during HOLD
(FIX)
LAST:
During HOLD the last measured
value is maintained at the output
FIX:
During HOLD a value (to be entered)
is maintained at the output
Select with arrow key
Proceed with enter
Only with FIX selected:
Enter current which is to flow at
the output during HOLD
Select position with arrow key
and edit number with key.
21.0 mA
(00.0 ...
22.0 mA
Proceed with enter
Output signal during HOLD:
Output current
[mA]
Output signal HOLD
Setting FIX = 21.0 mA
Output signal HOLD
Setting LAST
21
4
HOLD active
HOLD active
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Configuration
Temperature compensation
Temperature unit and probe.
1
2
Current output:
1. Press conf key.
2. Enter passcode 1200.
3. Select Temperature compensation
menu group using arrow keys.
All items of this menu group
are indicated by the code “tc.”
4. Press enter to select menu,
edit with arrow keys (see Pg 55).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Temperature compensation:
3
Select °C/°F
4
Select temperature probe
TC during measurement
TC during calibration
Enter TC process medium
5
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Action
Choices
Specify temperature unit
Select with arrow key
Proceed with enter
°C
(°F)
Select temperature probe
Select with arrow key
Proceed with enter
Pt1000
(Pt100,
NTC30,
NTC8.55
Bco3000)
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Configuration
Temperature compensation
Temp detection for meas/cal, TC process medium
1
2
Current output:
1. Press conf key.
2. Enter passcode 1200.
3. Select Temperature compensation
menu group using arrow keys.
All items of this menu group
are indicated by the code “tc.”
4. Press enter to select menu,
edit with arrow keys (see Pg 57).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Temperature compensation
3
Select °C/°F
4
Select temperature probe
TC during measurement
TC during calibration
Enter TC process medium
5
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Action
Choices
Select temp detection during
measurement (Auto/MAN)
AUTO: Temp detection with
temperature probe
MAN: Manual temperature input
Select with key, proceed with
enter
AUT
(MAN)
Only with manual temp detection
selected (MAN)
Enter temperature.
Select position with arrow key
and edit number with key.
Proceed with enter
25 °C
(xxx.x °C)
Select temp detection during calibration (Auto/MAN)
Select with key, proceed with
enter
AUT
(MAN)
Only with manual temp detection
selected (MAN)
Enter temperature.
Select position with arrow key
and edit number with key.
Proceed with enter
25 °C
(xxx.x °C)
For pH measurement only:
Enter temperature compensation
of process medium.
Select position with arrow key
and edit number with key.
Proceed with enter
00.00 %/K
(xx.xx %/K)
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Configuration
Calibration mode
1
2
Current output:
1. Press conf key.
2. Enter passcode 1200.
3. Select Calibration mode menu group
using arrow keys.
All items of this menu group
are indicated by the code “CA.”
4. Press enter to select menu,
edit with arrow keys (see Pg 59).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Temp compensation
Calibration mode:
3
Calibration mode
4
Cal timer interval
5
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Code Display
Action
Choices
CA.
For pH measurement only:
Select calibration mode
BUF: Calibration with Calimatic
automatic buffer selection.
To do so, you must select your
buffer set:
-00-BUF
(-01-BUF/02-BUF/
-03-BUF/
-04-BUF/
-05-BUF/
-06-BUF/
-07-BUF/
-08-BUF/
MAN/
DAT)
-00- BUF:
-01- BUF:
-02- BUF:
-03- BUF:
-04- BUF:
-05- BUF:
-06- BUF:
-07- BUF:
-08- BUF:
Knick
Mettler-Toledo
Merck Titrisols, Riedel Fixanals
Ciba (94)
NIST technical buffers
NIST standard buffers
HACH buffers
WTW technical buffers
Hamilton Duracal
MAN: Calibration with
manual buffer entry
DAT: Entry of asymmetry potential
and slope of premeasured electrodes.
Select withkey, proceed with
enter
Enter calibration interval:
Entry of time interval within which
the Stratos is to be calibrated.
With a time interval of 0000 hrs
the calibration timer is not active.
Select with key, edit number
with key, proceed with enter
0000 h
(0000 ...
9999 h)
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Configuration
Alarm settings
1
2
Current output:
1. Press conf key.
2. Enter passcode 1200.
3. Select Alarm settings menu group
using arrow keys.
All items of this menu group
are indicated by the code “AL.”
4. Press enter to select menu,
edit with arrow keys (see Pg 61).
Confirm (and proceed) with enter.
5. End: Press conf, then enter.
Temp compensation
Calibration mode:
Alarm settings:
3
Select Sensocheck
4
Delay
LED in Hold mode
5
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Action
Choices
ON / OFF
Select Sensocheck
(continuous monitoring of glass and
reference electrode)
Select with key, proceed with
enter
Alarm delay
Acts on LED indication and 22 mA
signal.
Select with key, edit number
with key, proceed with enter
LED in Hold mode
Select with key, proceed with
enter
0010 s
(xxxx s)
ON / OFF
LED state:
Parameter setting Alarm
HOLD
ON
on
flashes
OFF
flashes
off
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Passcodes according to FDA 21 CFR Part 11
Access to the device functions can be protected with adjustable
passcodes if required. If such a protection is not required, you
should use the preset passcodes.
To call up passcode editor:
Press conf key and enter Administrator passcode (1989).
Display
62
Action
Remark
1. Press conf key.
2. Enter Administrator passcode
(1989):
Welcome text is displayed
This text is displayed
for approx. 3 s
“Cal Info”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
0000
“Zero point adjustment”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
1001
“Calibration”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
1100
“Product calibration”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
1105
“Temp probe adjustment”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
1015
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Action
Remark
“Error Info”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
0000
“Configuration”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
1200
“Sensor monitor”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
2222
“Current source”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Default setting:
5555
“Administrator passcode”
Edit: Arrow keys
Proceed: enter
Cancel: conf
Caution!
If you have lost the
Administrator passcode, the Passcode
Editor cannot be
called up!
Please consult our
technical support!
• Cancel new administrator
passcode
Proceed: enter
Cancel: conf
Default setting:
1989
• Take over new administrator passcode
Proceed: enter
Cancel: conf
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Calibration
Calibration adjusts the device to the electrode.
Activate
Activate with cal
Enter passcode: 1100
Select with key, edit number with key, proceed with enter key
(End with cal and enter.)
Hold
During calibration the Stratos remains
in the Hold mode for reasons of safety. The loop current is frozen (at its
last value or at a preset fixed value,
depending on the configuration),
Sensoface is off, mode indicator
“Calibration” is on.
HOLD icon
Input errors
The calibration parameters are
checked during the input. In the case
of an incorrect input ”Err” is displayed for approx. 3 s. The incorrect
parameters cannot be stored. Input
must be repeated.
End
End with cal.
The measured value and Hold are displayed alternately, “enter” flashes. Press
enter to end the Hold mode. The
measured value is displayed. The output
current remains frozen for another 20 s
(HOLD icon on, “hourglass” flashes).
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pH calibration
Calibration is used to adapt the device to the individual electrode characteristics, namely asymmetry potential and slope.
Calibration can be performed with Calimatic automatic buffer
recognition, with manual buffer input, by entering premeasured electrode data, or by sampling the product.
When using Durafet electrodes, you must adjust the zero point
first. Then you can conduct either a one or a two-point calibration.
Caution
• All calibration procedures must be performed by trained
personnel. Incorrectly set parameters may go unnoticed,
but change the measuring properties.
• The response times of the electrode and temperature probe
are considerably reduced if the electrode is first moved about
in the buffer solution and then held still.
• The Stratos can only operate properly when the buffer
solutions used correspond to the configured set. Other
buffer solutions, even those with the same nominal values,
may demonstrate a different temperature behavior.
This leads to measurement errors.
When using Durafet electrodes or electrodes with a
zero point other than pH 7 the nominal zero point must
be adjusted each time a new electrode is connected. This is
important if you want to obtain reliable Sensoface messages.
The Sensoface messages issued during all further calibrations
are based on this basic calibration.
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Zero point adjustment (ISFET)
Allows use of electrodes with differing nominal zero (pH only)
Display
66
Action
Remark
Press cal key, enter passcode
1001
Select with key, edit number
with key, proceed with
enter
Stratos is in the Hold
mode.
If an invalid passcode
is entered, Stratos
returns to measuring
mode.
Ready for calibration
“CAL” and “enter” are flashing.
Display (3 s)
Immerse electrode in a pH 7.00
buffer. Enter the temperaturecorrected pH value in the range
6.50 to 7.50 using the arrow
keys (see buffer table).
Confirm with enter.
If the zero offset of
the electrode is too
large (> ± 200 mV),
the CAL ERR error
message is generated. In that case the
electrode cannot be
calibrated.
Stability check:
The measured mV value is displayed.
The “hourglass” as well as
“Zero” and “Beaker” icons are
flashing.
Note:
Stability check can
be stopped (by
pressing cal).
However, this
reduces calibration
accuracy.
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Action
Remark
At the end of the adjustment
procedure the zero offset [mV]
(based on 25 °C) of the electrode is displayed.
The “Zero” and “enter” icons
are flashing.
Proceed with enter
This is no final value!
Zero and slope must
be determined with
a complete 2-point
calibration (cal 1100)
(see following
pages).
Security prompt.
Display of pH value (alternately
with Hold) and temperature,
“enter” flashes, Sensoface is
active.
After end of calibration, the outputs
remain in Hold mode
for approx. 20 sec.
Place electrode in process.
Press enter to end the
zero point calibration.
Information on zero point adjustment
After having adjusted the zero offset, be sure to calibrate the
electrode following one of the procedures as described on the next pages:
• Automatic calibration with Calimatic
• Manual calibration
• Data entry of premeasured electrodes
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Automatic calibration with Calimatic (BUF -xx-)
Temperature detection automatic or manual
The Stratos can only operate properly when the buffer solutions used correspond to the configured set. Other buffer solutions, even those with the
same nominal values, may demonstrate a different temperature behavior.
This leads to measurement errors.
Display
Action
Remark
Press cal key, enter passcode
1100
Select with key, edit number
with key, proceed with enter
If an invalid passcode
is entered, Stratos
returns to measuring
mode.
Remove the electrode and
temperature probe, clean them
and immerse them in the first
buffer solution (in any order).
When “Manual temp detection”
has been configured, enter temperature value in the secondary
display using the arrow keys.
Start with enter.
Stratos in Hold
mode, measured
value frozen.
Sensoface inactive.
Buffer recognition
While the “hourglass” icon
flashes, the electrode and temperature probe remain in the
first buffer solution.
Buffer recognition terminated,
the nominal buffer value is displayed.
68
The response time
of the electrode
and temperature
probe is considerably reduced if the
electrode is first
moved about in the
buffer solution and
then held still.
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Action
Remark
Stability check:
The measured mV value is displayed.
To abort stability
check: Press cal.
(accuracy reduced)
Calibration with the first buffer
is terminated. Remove the electrode and temp probe from the
first buffer solution and rinse
them thoroughly.
• One-point calibration:
End with cal.
Slope [%] and asymmetry
potential [mV] of the electrode
are displayed. Proceed with
enter.
For one-point
calibration only:
• Two-point calibration:
Immerse electrode and
temperature probe in the second buffer solution.
Start with enter.
The calibration
process runs again
as for the first
buffer.
Retract electrode and temp
probe out of second buffer,
rinse off, re-install.
Repeat calibration: cal,
End calibration: enter.
Slope and asymmetry potential of
electrode (related to
25 °C) are displayed.
pH value and Hold are displayed alternately.
Proceed with enter.
Hold is deactivated after 20 s.
Security prompt.
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Manual calibration
Temperature detection automatic or manual
For calibration with manual buffer specification, you must enter the pH value
of the buffer solution used in the Stratos for the proper temperature. This
presetting enables calibration with any desired buffer solution. The MAN calibration mode and the type of temperature detection are selected in the configuration mode.
Display
Action
Remark
Press cal key, enter passcode
1100
Select with key, edit number
with key, proceed with enter.
If an invalid passcode
is entered, Stratos
returns to measuring
mode.
Remove the electrode and
temperature probe, clean them
and immerse them in the first
buffer solution (in any order).
When “Manual temp detection”
has been configured, enter temperature value in the secondary
display using the arrow keys.
Start with enter.
Stratos in Hold
mode, measured
value frozen.
Sensoface inactive.
Enter the pH value of your
buffer solution for the proper
temperature. While the “hourglass” icon flashes, the electrode and temperature probe
remain in the first buffer solution.
70
The response time
of the electrode
and temperature
probe is considerably reduced if the
electrode is first
moved about in the
buffer solution and
then held still.
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Action
Remark
Stability check:
The measured mV value is displayed.
To abort stability
check: Press cal.
(accuracy reduced)
Calibration with the first buffer
is terminated. Remove the electrode and temp probe from the
first buffer solution and rinse
them thoroughly.
• One-point calibration:
End with cal.
Slope [%] and asymmetry
potential [mV] of the electrode
are displayed.
Proceed with enter.
For one-point
calibration only:
• Two-point calibration:
Immerse electrode and temperature probe in the second buffer
solution.Enter the pH value of
the second buffer solution.
Start with enter.
The calibration
process runs again
as for the first
buffer.
Retract electrode and temp
probe out of second buffer,
rinse off, re-install.
Repeat calibration: cal
End calibration: enter.
Slope and asymmetry potential of
electrode (related to
25 °C) are displayed.
pH value and Hold are displayed alternately.
Proceed with enter.
Hold is deactivated after 20 s.
Security prompt.
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Data entry of premeasured electrodes
You can directly enter the values for slope and asymmetry potential of an
electrode. The values must be known, e.g. determined beforehand in the
laboratory.
The DAT calibration mode must be preset in the configuration mode.
Display
Remark
Action
If an invalid passcode
Press cal key, enter passcode
is entered, Stratos
1100
Select with key, edit number returns to measuring
mode.
with key, proceed with
enter.
Stratos in Hold
mode, measured
value frozen.
Sensoface inactive.
Ready for calibration
Start with enter.
Enter asymmetry potential
[mV]. Select with key, edit
number with key, proceed
with enter.
Enter slope [%]. Select with key, edit number with key,
proceed with enter.
The Stratos displays the new
slope and asymmetry potential
(at 25 °C).
Proceed with enter.
pH value and Hold are displayed alternately.
Proceed with enter.
Hold is deactivated after 20 s.
72
Security prompt.
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Convert slope [%] to slope [mV/pH] at 25 °C:
%
78
80
82
84
86
88
90
92
94
96
98
100
102
mV/pH
46.2
47.4
48.5
49.7
50.9
52.1
53.3
54.5
55.6
56.8
58.0
59.2
60.4
Converting
asymmetry potential in electrode zero point:
ZERO = 7 -
VAS [mV]
S [mV / pH]
ZERO
VAS
S
Electrode zero point
Asymmetry potential
Slope
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Product calibration
Calibration by sampling
During product calibration the electrode remains in the process.
The measurement process is only interrupted briefly.
Procedure: During sampling the currently measured value is
stored in the Stratos. The Stratos immediately returns to measuring
mode.
The calibration mode indicator flashes and reminds you that calibration has not been terminated.
The sample is measured in the lab or directly on the site using a
portable meter. To ensure an exact calibration, the sample temperature should correspond to the measured process temperature. The
measured sample value is then entered in the Stratos. From the difference between the stored measured value and entered sample
value, the Stratos calculates the new asymmetry potential (onepoint calibration).
If the sample is invalid, you can take over the value stored during
sampling. In that case the old calibration values are stored.
Afterwards, you can start a new product calibration.
Display
74
Action
Remark
Product calibration 1st step:
Press cal key, enter passcode
1105
(Press key to select position,
enter number using key,
confirm with enter)
If an invalid passcode
is entered, Stratos
returns to measuring
mode.
Take sample and store value.
Proceed with enter
Now the sample can
be measured in the
lab.
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Display
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Action
Measuring mode:
From the flashing CAL mode
indicator you see that sample
calibration has not been terminated.
Product calibration 2nd step:
When the sample value has
been determined, call up the
product calibration once more
(cal, code 1105).
Seite 75
Remark
While the sample
value is determined, the Stratos
is in measuring
mode.
Display
(approx. 3 sec)
Enter lab value. The new asymmetry potential is calculated.
Display of slope and new
asymmetry potential
(related to 25 °C).
End calibration with enter.
New calibration:
Press cal.
The measured value is shown in
the main display alternately
with “Hold”; “enter” flashes.
End with enter.
After end of calibration, the outputs
remain in Hold
mode for approx.
20 sec.
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ORP calibration
ORP calibration mode is automatically preset when ORP measurement is
configured. The potential of a redox electrode is calibrated using a redox
(ORP) buffer solution. In the course of that, the difference between the
measured potential and the potential of the calibration solution is determined according to the following equation. During measurement the
Stratos adds this difference to the measured potential.
mVORP = mVmeas +∆mV
mVORP = displayed ORP
mVmeas = direct electrode potential
∆mV
= delta value, determined during
calibration
The electrode potential can also be related to another reference system –
e.g. the standard hydrogen electrode. In that case the temperaturecorrected potential (see table) of the reference electrode used must be
entered during calibration. During measurement, this value is then added
to the ORP measured.
Please make sure that measurement and calibration temperature are the
same, since the temperature behavior of the reference electrode is not
automatically taken into account.
Temperature dependence of commonly used reference systems
Temperature
[°C]
Ag/AgCl/KCl
1 mol/l
[∆mV]
Ag/AgCl/KCl
3 mol/l
[∆mV]
Thalamid
[∆mV]
Mercury
sulfate
[∆mV]
0
10
20
25
30
40
50
60
70
80
249
244
240
236
233
227
221
214
207
200
224
217
211
207
203
196
188
180
172
163
-559
-564
-569
-571
-574
-580
-585
-592
-598
-605
672
664
655
651
647
639
631
623
613
603
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Display
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Action
Remark
Activate calibration
(Press cal).
Enter passcode 1100.
Select withkey, edit number
withkey, proceed with enter.
If an invalid passcode
is entered, Stratos
returns to measuring
mode.
Remove the electrode and temperature probe, clean them and
immerse them in the redox
buffer.
Display
(approx. 3 sec)
Stratos is in the
Hold mode.
Enter desired value for redox buffer
(Secondary display: Electrode
potential displayed for approx. 6 s)
Select with key, edit number
with key, proceed with enter.
After approx. 6 sec
the secondary display shows the
measured temperature.
“Zero” and “enter”
Display of electrode data
icons are flashing,
(delta value)
Sensoface is active.
Proceed with enter.
Rinse electrode and temperature
probe and reinstall them.
The measured ORP value [mV]
is shown in the main display
alternately with “Hold”,
“enter” flashes.
End with enter.
After end of calibration, the outputs
remain in Hold
mode for approx.
20 sec.
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Adjusting temp probe
Display
Action
Remark
Activate calibration
(Press cal,
Enter passcode 1015.)
Select with key, edit number
with key, proceed with enter.
Wrong settings
change the measurement properties! If
an invalid passcode is
entered, Stratos
returns to measuring
mode.
Measure the temperature of the Stratos is in the Hold
process medium using an exter- mode.
nal thermometer
Enter measured temperature
value.
Select with key,
edit number with key,
proceed with enter.
End adjustment with enter.
HOLD will be deactivated after
20 sec.
Default:
Value of secondary
display.
Measurement
Display
Smiley only
with Sensocheck
activated
78
Remark
In the measuring mode the main display shows the
configured process variable (pH or ORP [mV]) and the
lower display the temperature.
During calibration you can return to measuring mode
by pressing the cal key, during configuration by pressing conf.
(Waiting time for measured value stabilization approx.
20 sec).
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Diagnostics functions
Display
Remark
Display of output current
Press enter while in measuring mode.
The main display shows the measured value,
the secondary display the output current.
After 5 sec the Stratos returns to measuring mode.
Smiley only
with Sensocheck
activated
Display of calibration data (Cal Info)
Press cal while in measuring mode and enter passcode
0000. The slope is shown in the main display, the
asymmetry potential in the secondary display.
After 20 sec the Stratos returns to measuring mode
(immediate return at pressing enter).
Display of electrode potential
(Sensor monitor)
Press conf while in measuring mode and enter passcode
2222. The (uncompensated) electrode potential is shown
in the main display, the measuring temperature in the secondary display. Press enter to return to measurement.
Smiley only
with Sensocheck
activated
Display of last error message
(Error info)
Press conf while in measuring mode and enter
passcode 0000. The last error message is displayed for approx. 20 sec.
After that the message will be deleted.
(immediate return to measurement at pressing
enter).
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Diagnostics functions
These functions are used for testing the connected peripherals.
Display
Action / Remarks
Specify output current
• Press conf, enter passcode 5555
The output current indicated in the main display can
be modified.
Select with key, edit number with key,
proceed with enter.
The actually measured current is shown in the secondary display. The Stratos is in Hold mode.
Press conf to return to measurement (Hold remains
active for another 20 sec).
Cleaning
To remove dust, dirt and spots, the external surfaces of the
device may be wiped with a damp, lint-free cloth.
A mild household cleaner may also be used if necessary.
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Time out
LED
Operating
state
Out 1
Operating states
Measurement
Cal Info
(cal) 0000
20 s
Error Info
(conf) 0000
20 s
Calibration
(cal) 1100
Temp adjustment
(cal) 1015
Product cal 1
(cal) 1105
Product cal 2
(cal) 1105
Configuration
(conf) 1200
20 min
Sensor monitor
(conf) 2222
20 min
Current source 1
(conf) 5555
20 min
Explanation:
active
as configured (Last/Fix or Last/Off)
LED flashes during HOLD (configurable)
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Error messages (error codes)
Error
ERR 01
Display
Problem
Possible causes
Red LED and
out 1 (22 mA)
Measured pH electrode
value
• Electrode defective
• Too little electrolyte in electrode
flashes
x
• Electrode not connected
• Break in electrode cable
• Incorrect electrode connected
• Measured pH value < – 2 or > 16
• Measured ORP value < – 1999 mV
or > 1999 mV
ERR 02
Measured Redox electrode
• Electrode defective
value
• Electrode not connected
flashes
x
• Break in electrode cable
• Incorrect electrode connected
• Electrode potential < – 1500 mV
• Electrode potential > 1500 mV
ERR 98
“Conf”
flashes
System error
Configuration or calibration data
defective. Completely reconfigure
and recalibrate the device.
Memory error in device program
x
ERR 99
“FAIL”
flashes
Factory settings
EEPROM or RAM defective
This error message only occurs in
the case of a complete defect. The
Stratos must be repaired and recalibrated at the factory.
x
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Symbol Problem
(flashes) Possible causes
Red LED and
out 1 (22 mA)
ERR 03
Temperature probe
Open or short circuit
Temperature range exceeded
x
ERR 11
Current output
Current below 3.8 mA
x
ERR 12
Current output
Current above 20.5 mA
x
ERR 13
Current output
Current span too small / too large
x
ERR 33
Sensocheck: Glass electrode
Reference electrode
x
ERR 34
• Zero error, Sensoface active, see Pg 86
• Slope error, Sensoface active, see Pg 86
• Response time exceeded, Sensoface active, see Pg 86
• Calibration interval expired, Sensoface active, see Pg 86
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Calibration error messages
Symbol flashes:
Problem
Possible causes
Asymmetry potential out of range (±60 mV)
• Electrode worn out
• Buffer solution contaminated
• Buffer does not belong to configured buffer set
• Temperature probe not immersed in
buffer solution (for automatic
temperature compensation)
• Wrong buffer temperature set
(for manual temperature specification)
• Nominal electrode zero point ≠ pH 7
Electrode slope out of range (80-103 %)
• Electrode worn out
• Buffer solution contaminated
• Buffer does not belong to configured
buffer set
• Temperature probe not immersed in
buffer solution (for automatic
temperature compensation)
• Wrong buffer temperature set
(for manual temperature specification)
• Electrode used has different nominal slope
Problems during recognition of the
buffer solution
• Same or similar buffer solution was used for
both calibration steps
• Buffer solution used does not belong to
buffer set currently configured in the unit
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Problem
Possible causes
Problems during recognition
of the buffer solution (continued)
• During manual calibration the buffer solutions
were not used in the specified order
• Buffer solutions contaminated
• Wrong buffer temperature set
(for manual temperature specification)
• Electrode defective
• Electrode not connected
• Electrode cable defective
Calibration was canceled after approx.
2 min because the electrode drift was too
large.
• Electrode defective
• Electrode dirty
• No electrolyte in the electrode
• Electrode cable insufficiently shielded
or defective
• Strong electric fields influence the
measurement
• Major temperature fluctuation of the
buffer solution
• No buffer solution or extremely diluted
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Sensoface
(Sensocheck must have been activated during configuration.)
The little smiley in the display (Sensoface) alerts to electrode
problems (defective sensor, defective cable, maintenance
required). The permitted calibration ranges and the conditions
for a friendly, neutral, or sad Sensoface are summarized in the
following chart. Additional icons refer to the error cause.
Sensocheck
Continuously monitors the electrodes and wires for short circuits
or open circuits. Critical values make the Sensoface “sad” and
the corresponding icon flashes:
The Sensocheck message is also output as error message Err 33.
The red LED is lighted, the output current is set to 22 mA
(when configured correspondingly). Sensocheck can be switched
off during configuration (then Sensoface is also disabled).
Exception: After a calibration a Smiley is always displayed for
confirmation.
Note
The worsening of a Sensoface criterion leads to the devaluation
of the Sensoface indicator (Smiley becomes “sad”). An
improvement of the Sensoface indicator can only take place
after calibration or removal of an electrode defect.
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Display Problem
Asymmetry
potential and
slope
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Status
Asymmetry potential (zero) and slope
of the electrode are still okay,
However, the electrode should be
replaced soon.
Asymmetry potential (zero point)
and/or slope of the electrode have
reached values which no longer
ensure proper calibration. Replace the
electrode.
Cal timer
Over 80 % of the calibration interval
has already past.
The calibration interval has been
exceeded.
Electrode
defective
Check the electrode and its
connections
(also see error messages
Err 33 and Err 34, see Pg 83).
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Appendix
Product line and accessories
Devices
Order No.
Stratos e 2211 pH
Stratos e 2211 X pH
2211 pH
2211 X pH
Mounting accessories
Pipe-mount kit
Panel-mount kit
Protective hood
Further accessories
HART test socket,
integrated in Pg cable gland
SMEK input socket
(for sensor cable with one coax line)
ZU 0274
ZU 0275
ZU 0276
ZU 0287
ZU 0322
For more information concerning our sensors and fittings
product line please refer to our “Sensors, Fittings, Accessories”
catalog:
Download at
http://www.knick.de
or request catalog:
Phone: +49 - 30 - 801 91 - 0
Fax: +49 - 30 - 801 91 - 200
E-mail: knick@knick.de
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Recommended power supply units
Order No.
Repeater power supply, IS, 24 V AC/DC,
Output 0/4...20 mA
WG 20 A2
Repeater power supply, IS, 90...253 V AC,
Output 4...20 mA
WG 21 A7
Repeater power supply, IS, 90...253 V AC, HART,
Output 4...20 mA
WG 21 A7 Opt. 470
Repeater power supply, IS, 24 V AC/DC,
Output 4...20 mA
WG 21 A7 Opt. 336
Repeater power supply, IS, 24 V AC/DC, HART,
Output 4...20 mA
WG 21 A7 Opt. 336, 470
Repeater power supply, safe area, 24 V DC,
Output 4...20 mA
IsoAmp PWR B 10116
Repeater power supply, safe area, 24 V DC, HART,
Output 0/4...20 mA / 0...10V
IsoAmp PWR A 20100
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Specifications
pH/mV input
Input for pH or ORP electrodes or ISFET
Meas. range
Display range
-1500 ... +1500 mV
pH value -2.00 ... 16.00
ORP
-1999 ... +1999 mV
1)
Glass electrode input
Input resistance
> 0.5 x 1012 Ohms
Input current
< 2 x 10-12 A
1)
Reference electrode input
Input resistance
> 1 x 1010 Ohms
Input current
< 1 x 10-10 A
1,2,3)
Measurement error
pH value
mV value
< 0.02
< 1 mV
Sensor standardization pH *)
Operating modes
BUF
TC: 0.002 pH/K
TC: 0.1mV/K
pH calibration
Calibration with Calimatic automatic buffer
recognition :
Buffer sets -00- / -01Knick / Mettler-Toledo
2.00/4.01/7.00/9.21
-02Merck/Riedel de Haen
2.00/4.00/7.00/9.00/12.00
-03Ciba (94)
2.06/4.00/7.00/10.00
-04NIST technical
1.68/4.00/7.00/10.01/12.46
-05NIST standard
1.679/4.006/6.865/9.180
-06HACH
4.00/7.00/10.18
-07WTW technical buffers
2.00/4.01/7.00/10.00
-08Hamilton
4.01/7.00/10.01
MAN
Calibration with manual entry of
individual buffer values
DAT
Data entry of premeasured electrodes
PRD
Product calibration
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Zero point adjustment
Max. calibration range
Slope:
±200 mV
Asymmetry potential: ±60 mV
80 ... 103 % (47,5 ... 61 mV/pH)
Sensor standardization ORP *)
Max. calibration range
ORP calibration
-700 ... +700 ∆mV
Cal timer
0000 ... 9999 h
Sensocheck
Automatic monitoring of glass and
reference electrode (can be disabled)
Sensoface
Provides information on the electrode condition.
Evaluation of zero/slope, response time,
calibration interval, Sensocheck
Sensor monitor
Direct display of measured values from sensor for
validation (resistance / temperature)
Temperature input *)
Pt100/Pt1000/NTC 30 kΩ/NTC 8.55 kΩ/Balco 3kΩ
2-wire connection, adjustable
Pt 100/Pt 1000
- 20,0 ... +200.0 °C
(- 4 ... + 392 °F)
NTC 30 kΩ
- 20,0 ... +150.0 °C
(- 4 ... +302 °F)
NTC 8.55 kΩ
- 10,0 ... +130.0 °C
(- 4 ... +266 °F)
Balco 3kΩ
0.0 ... +100.0 °C
(+32 ...+212 °F)
Measurement range
Adjustment range
Resolution
Measurement error1,2,3)
10 K
0.1 °C / 1 °F
<0.5 K (<1 K for Pt100; <1 K for NTC >100°C)
Temp compensation
of process medium
Linear –19.99 ... +19.99 %/K
(reference temp 25 °C)
91
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Seite 92
Specifications
Loop current
Supply voltage
Measured variable *)
Characteristic
Overrange*)
Output filter *)
4 ... 20 mA floating
12 ... 30 V
pH, ORP
Linear
22 mA in the case of error messages
Low-pass (PT1 filter), filter time constant 0 ... 120 s
Meas. error 1)
Start/end of scale
< 0.3 % current value + 0.05 mA
As desired within range
for pH or mV
pH 2.00 ...18.00 / 200 ... 3000 mV
3.8 mA ... 22.00 mA
Admissible span
Current source function
HART communication
Digital communication by FSK modulation
of loop current, reading of device identification,
measured values, status and messages,
reading and writing of parameters,
start of product calibration, signaling of
configuration changes according to FDA 21 CFR Part 11
Power output
For operating an ISFET adapter
+3 V / 0.5 mA
–3 V / 0.5 mA
Display
Main display
Secondary display
Sensoface
LC display, 7-segment with icons
Character height 17 mm, unit symbols 10 mm
Character height 10 mm, unit symbols 7 mm
3 status indicators
(friendly, neutral, sad Smiley)
Status indication
Alarm indication
5 mode indicators “meas”, “cal”, “alarm”,
“cleaning”,“config”
18 further icons for configuration and messages
Red LED in case of alarm or HOLD, user defined
Keypad
5 keys: [cal] [conf] [] [] [enter]
92
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Service functions
Current source
Device self-test
Display test
Last Error
Sensor monitor
11:52 Uhr
Seite 93
Loop current specifiable 3.8 ... 22.00 mA
Automatic memory test (RAM, FLASH, EEPROM)
Display of all segments
Display of last error
Display of direct, uncorrected sensor signal
(resistance / temperature)
Modifiable according to FDA 21 CFR Part 11
“Electronic Signatures”
Passcodes
Data retention
Parameters and calibration data > 10 years (EEPROM)
EMC
Emitted interference:
EN 61326
Class B (residential area)
Class A for mains > 60 V DC
Industry
Immunity to interference:
Explosion protection
2211 X:
ATEX
FM
2211:
CSA
FM
CSA
II 2 (1) G EEx ib [ia] IIC T6
IS AIS, Cl. I, Div1, Group A,B,C & D / T4
AIS, Cl. I,II,III, Div1, Group A,B,C,D,E,F & G
NI, Cl. I, Div2, Group A,B,C & D / T4
Cl. I, Zone 1, AEx ia [ia] / IIC / T6
Cl. I, Div 1, Groups A,B,C & D, T4 Ex ib [ia] IIC T4
NI, Cl. I, Div2, Group A,B,C & D / T4
Cl. I, Div 2, Groups A,B,C & D, T4 Ex nAL [L] / IIC / T4
Nominal operating conditions
Ambient temperature
-20 ... +55 °C
Transport/Storage temp
-20 ... +70 °C
Relative humidity
10 ... 80 % not condensing
Supply voltage
12 ... 30 V
93
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Seite 94
Specifications
Enclosure
Color
Assembly
Dimensions
Ingress protection
Cable glands
Weight
Molded enclosure made of PBT
(polybutylene terephtalate)
Bluish gray RAL 7031
• Wall mounting
• Pipe mounting:
dia 40 ... 60 mm,
30 ... 45 mm
• Panel mounting, cutout to DIN 43 700
Sealed against panel
H 144 mm, W 144 mm, D 105 mm
IP 65/NEMA 4X
(USA, Canada: indoor use only)
3 breakthroughs for cable glands
M20x1.5, 2 breakthroughs for NPT 1/2” or
Rigid Metallic Conduit
Approx. 1 kg
*) User-defined
1) To IEC 746 Part 1, at nominal operating conditions
2) ± 1 count
3) Plus sensor error
94
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Seite 95
Buffer tables
-00-01°C
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
Knick technical buffers (correspond to
Mettler-Toledo technical buffers)
pH
2.03
2.02
2.01
2.00
2.00
2.00
1.99
1.99
1.98
1.98
1.98
1.98
1.98
1.99
1.99
2.00
2.00
2.00
2.00
2.00
4.01
4.01
4.00
4.00
4.00
4.01
4.01
4.02
4.03
4.04
4.06
4.08
4.10
4.13
4.16
4.19
4.22
4.26
4.30
4.35
7.12
7.09
7.06
7.04
7.02
7.00
6.99
6.98
6.97
6.97
6.97
6.98
6.98
6.99
7.00
7.02
7.04
7.06
7.09
7.12
9.52
9.45
9.38
9.32
9.26
9.21
9.16
9.11
9.06
9.03
8.99
8.96
8.93
8.90
8.88
8.85
8.83
8.81
8.79
8.77
95
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Seite 96
Buffer tables
-02-
Merck Titrisols, Riedel Fixanals
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
2.01
2.01
2.01
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.01
2.01
2.01
2.01
2.01
2.01
96
4.05
4.04
4.02
4.01
4.00
4.01
4.01
4.01
4.01
4.01
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
7.13
7.07
7.05
7.02
7.00
6.98
6.98
6.96
6.95
6.95
6.95
6.95
6.96
6.96
6.96
6.96
6.97
6.98
7.00
7.02
9.24
9.16
9.11
9.05
9.00
8.95
8.91
8.88
8.85
8.82
8.79
8.76
8.73
8.72
8.70
8.68
8.66
8.65
8.64
8.64
12.58
12.41
12.26
12.10
12.00
11.88
11.72
11.67
11.54
11.44
11.33
11.19
11.04
10.97
10.90
10.80
10.70
10.59
10.48
10.37
Stratos e 2211 (X) pH
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Seite 97
Ciba (94) buffers
Nominal values: 2.06, 4.00, 7.00, 10.00
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
2.04
2.09
2.07
2.08
2.09
2.08
2.06
2.06
2.07
2.06
2.06
2.05
2.08
2.07
2.07
2.04
2.02
2.03
2.04
2.05
*
*
*
*
4.00
4.02
4.00
4.00
4.01
4.02
4.00
4.01
4.02
4.03
4.04
4.05
4.10
4.10
4.11
4.13
4.15
4.17
4.20
4.22
*
*
*
*
7.10
7.08
7.05
7.02
6.98
6.98
6.96
6.95
6.94
6.93
6.93
6.91
6.93
6.92
6.92
6.92
6.93
6.95
6.97
6.99
*
*
*
*
10.30
10.21
10.14
10.06
9.99
9.95
9.89
9.85
9.81
9.77
9.73
9.68
9.66
9.61
9.57
9.54
9.52
9.47
9.43
9.38
*
*
*
*
* Extrapolated
97
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Seite 98
Buffer tables
-04-
Technical buffers to NIST
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
1.67
1.67
1.67
1.67
1.675
1.68
1.68
1.69
1.69
1.70
1.705
1.715
1.72
1.73
1.74
1.75
1.765
1.78
1.79
1.805
4.00
4.00
4.00
4.00
4.00
4.005
4.015
4.025
4.03
4.045
4.06
4.075
4.085
4.10
4.13
4.14
4.16
4.18
4.21
4.23
7.115
7.085
7.06
7.04
7.015
7.00
6.985
6.98
6.975
6.975
6.97
6.97
6.97
6.98
6.99
7.01
7.03
7.05
7.08
7.11
10.32
10.25
10.18
10.12
10.06
10.01
9.97
9.93
9.89
9.86
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
*
*
*
*
*
*
*
*
*
13.42
13.21
13.01
12.80
12.64
12.46
12.30
12.13
11.99
11.84
11.71
11.57
11.45
11.45
11.45
11.45
11.45
11.45
11.45
11.45
*
*
*
*
*
*
*
* Extrapolated
98
Stratos e 2211 (X) pH
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Seite 99
NIST standard buffers
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
1.666
1.668
1.670
1.672
1.675
1.679
1.683
1.688
1.694
1.700
1.707
1.715
1.723
1.733
1.743
1.755
1.766
1.779
1.792
1.806
4.010
4.004
4.000
3.999
4.001
4.006
4.012
4.021
4.031
4.043
4.057
4.071
4.087
4.109
4.126
4.145
4.164
4.185
4.205
4.227
6.984
6.951
6.923
6.900
6.881
6.865
6.853
6.844
6.838
6.834
6.833
6.834
6.836
6.841
6.845
6.852
6.859
6.868
6.877
6.886
9.464
9.395
9.332
9.276
9.225
9.180
9.139
9.102
9.068
9.038
9.011
8.985
8.962
8.942
8.921
8.903
8.885
8.868
8.850
8.833
99
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Seite 100
Buffer tables
-06-
HACH buffers
Nominal values: 4.00, 7.00, 10.18
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
4.00
4.00
4.00
4.00
4.00
4.01
4.01
4.02
4.03
4.05
4.06
4.07
4.09
4.09
4.09
4.09
4.09
4.09
4.09
4.09
*
*
*
*
*
*
*
7.14
7.10
7.04
7.04
7.02
7.00
6.99
6.98
6.98
6.98
6.98
6.98
6.99
6.99
6.99
6.99
6.99
6.99
6.99
6.99
*
*
*
*
*
*
*
10.30
10.23
10.11
10.11
10.05
10.00
9.96
9.92
9.88
9.85
9.82
9.79
9.76
9.76
9.76
9.76
9.76
9.76
9.76
9.76
*
*
*
*
*
*
*
* Values complemented
Buffer values up to 60 °C as specified by Bergmann & Beving
Process AB.
100
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Seite 101
WTW buffers
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
2.03
2.02
2.01
2.00
2.00
2.00
1.99
1.99
1.98
1.98
1.98
1.98
1.98
1.99
2.00
2.00
2.00
2.00
2.00
2.00
4.01
4.01
4.00
4.00
4.00
4.01
4.01
4.02
4.03
4.04
4.06
4.08
4.10
4.13
4.16
4.19
4.22
4.26
4.30
4.35
7.12
7.09
7.06
7.04
7.02
7.00
6.99
6.98
6.97
6.97
6.97
6.98
6.98
6.99
7.00
7.02
7.04
7.06
7.09
7.12
10.65
10.52
10.39
10.26
10.13
10.00
9.87
9.74
9.61
9.48
9.35
101
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Seite 102
Buffer tables
-08-
Hamilton Duracal buffers
°C
pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
4.01 *
4.01
4.00
4.00
4.00
4.01
4.01
4.02
4.03
4.04
4.06
4.08 *
4.10 *
4.13 *
4.16 *
4.19 *
4.22 *
4.26 *
4.30 *
4.35 *
7.12
7.09
7.06
7.04
7.02
7.00
6.99
6.98
6.97
6.97
6.97
6.98
6.98
6.99
7.00
7.02
7.04
7.06
7.09
7.09
*
*
*
*
*
*
*
*
*
*
10.19 *
10.19
10.15
10.11
10.06
10.01
9.97
9.92
9.86
9.83
9.79
9.77 *
9.75 *
9.74 *
9.73 *
9.73 *
9.73 *
9.74 *
9.75 *
9.75 *
* Values complemented
The values above 50°C are not traceable to NIST.
102
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Seite 103
103
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Seite 104
FM Control Drawing
104
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Seite 105
105
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Explosion protection
106
Stratos e 2211 (X) pH
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Seite 107
Warnings and notes to ensure safe operation
Warning: Do not disconnect equipment unless power has
been switched off.
Warning: Clean only with antistatic moistened cloth.
Warning: Substitution of components may impair suitability
for hazardous locations.
• The equipment shall be installed and protected from mechanical
impact and ultraviolet (UV) sources.
• Clean only with a moistened antistatic cloth as potential
electrostatic hazard may exist. Service equipment only with
conductive clothing, footwear and personal grounding devices
to prevent electrostatic accumulation.
• Internal grounding provisions shall be provided for field wiring.
Bonding between conduit shall be provided during installation,
and all exposed non-current carrying metallic parts shall be
bonded and grounded.
• Installation in a Class I, Division 2 or Class I, Zone 2 hazardous
location shall be in accordance with the Canadian Electrical
Code (CEC Part 1) Section 18 Division 2 wiring methods.
OBSERVE THE SPECIFICATIONS OF THE CONTROL
DRAWING!
107
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Seite 108
CSA Control Drawing
pH-Measuring Loop
Terminals
Uo, Vsc
1/2, 4, 5, 6
IIC (GRP A, B)
10V
IIB (GRP C)
10V
IIC (GRP D)
10V
Temperature Measuring Loop
Terminals
Uo, Vsc
7, 8
IIC (GRP A, B)
5V
IIB (GRP C)
5V
IIC (GRP D)
5V
Sensor Supply
Terminals
17, 18, 19
IIC (GRP A, B)
IIB (GRP C)
IIC (GRP D)
Po
Co, Ca
Lo, La
10mA
10mA
10mA
25mW
25mW
25mW
3µF
9µF
24µF
250mH
1H
1H
Io, Isc
Po
Co, Ca
Lo, La
3mA
3mA
3mA
4mW
4mW
4mW
100µF
300µF
800µF
1H
1H
1H
Uo, Vsc
Io, Isc
Po
Co, Ca
Lo, La
10V
10V
10V
14mA
14mA
14mA
35mW
35mW
35mW
3µF
9µF
24µF
170mH
620mH
1H
Io, Isc
Po
Co, Ca
Lo, La
27mA
27mA
27mA
66mW
66mW
66mW
3µF
9µF
24µF
44mH
180mH
350mH
All combined outputs
Terminals:
Uo, Vsc
1/2, 4, 5, 6, 7, 8,
17, 18, 19
IIC (GRP A, B)
10V
IIB (GRP C)
10V
IIC (GRP D)
10V
108
Io, Isc
Stratos e 2211 (X) pH
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109
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Glossary
Asymmetry
potential
The voltage which a pH electrode provides
at a pH of 7. The asymmetry potential is
different for each electrode and changes
with age and wear.
Buffer set
Contains selected buffer solutions which
can be used for automatic calibration with
the Knick Calimatic. The buffer set must be
selected prior to the first calibration.
Buffer solution
Solution with an exactly defined pH value
for calibrating a pH meter.
Calibration
Adjustment of the pH meter to the current
electrode characteristics. The asymmetry
potential and slope are adjusted. You can
conduct either a one or a two-point calibration. With one-point calibration only
the asymmetry potential (zero point) is
adjusted.
Calimatic
Automatic buffer recognition. Before the
first calibration, the buffer set used must be
activated once. The patented Calimatic
then automatically recognizes the buffer
solutions used during calibration.
110
Stratos e 2211 (X)
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Combination
electrode
Combination of glass and reference electrode in one body.
Durafet
Durafet combination pH/ORP electrodes
consist of an ISFET measuring electrode, a
reference electrode, and a temperature
probe.
Electrode
zero point
See asymmetry potential
Electrode
slope
Is indicated in % of the theoretical slope
(59.2 mV/pH at 25 °C). The electrode slope
is different for each electrode and changes
with age and wear.
GainCheck
Device self-test which runs automatically in
the background at fixed intervals. The
memory and measured-value transmission
are checked. You can also start the
GainCheck manually. Then a display test is
also conducted and the software version
displayed.
111
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Seite 112
Glossary
Isfet adapter
Adapter between Isfet sensor and transmitter. Here, the signal of the pH-sensitive FET
is converted to voltage corresponding to
the signal of a glass electrode. This voltage
is led to the pH input of the Stratos and is
processed further as usual. The adapter is
directly supplied from the Stratos.
One-point
calibration
Calibration with which only the asymmetry
potential (zero point) is taken into account.
The previous slope value is retained. Only
one buffer solution is required for a onepoint calibration.
Passcode
User-defined four-digit number to select
certain modes.
pH electrode
system
A pH electrode system consists of a glass
and a reference electrode. If they are combined in one body, they are referred to as
combination electrode.
Response time
Time from the start of a calibration step to
the stabilization of the electrode potential.
112
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Sensocheck
Sensocheck continuously monitors the glass
and reference electrodes. The resulting
information is indicated by the Sensoface
smileys. Sensocheck can be switched off.
Sensoface
Provides information on the electrode condition. The zero point, slope, and response
time are evaluated. In addition, the
Sensocheck information is indicated.
Slope
See Electrode slope
Two-point
calibration
Calibration with which the electrode asymmetry potential (zero point) and slope are
determined. Two buffer solutions are
required for two-point calibration.
Zero point
See asymmetry potential
Zero point
adjustment
Basic adjustment of the Durafet electrode
to ensure reliable Sensoface information.
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Index
22 mA signal for error message . . . . . . . . . . . . . . . . . 53, 82
A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Asymmetry potential and slope . . . . . . . . . . . . . . . . . . . . . 87
Automatic calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
B
Buffer set selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Buffer tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
C
Cal timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58, 87
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Display of calibration data . . . . . . . . . . . . . . . . . . . . . .79
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Select Calibration mode . . . . . . . . . . . . . . . . . . . . . . . .58
Calimatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Calibration mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Current output . . . . . . . . . . . . . . . . . . . . . .46, 48, 50, 52
Individual settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Temperature compensation . . . . . . . . . . . . . . . . . .54, 56
Conformity with FDA 21 CFR Part 11 . . . . . . . . . . . . . . . . . 9
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Convert slope [%] to slope [mV/pH] . . . . . . . . . . . . . . . . . 73
Converting asymmetry potential in electrode zero point . . 73
CSA Control Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
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D
Data entry of premeasured electrodes . . . . . . . . . . . . . . . . 72
Device self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Diagnostics functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Display of Diagnostics data . . . . . . . . . . . . . . . . . . . . . .79
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Division 2 wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
E
EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . 8
EC-Type-Examination Certificate . . . . . . . . . . . . . . . . . . . . 10
Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrode defective . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Select type of electrode . . . . . . . . . . . . . . . . . . . . . . . .46
Wiring examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Display of last error message . . . . . . . . . . . . . . . . . . . .79
Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . 93, 106
F
FM Control Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
G
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
H
HART communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Hold mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
LED in Hold mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Output signal during HOLD . . . . . . . . . . . . . . . . . . . . .53
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I
Individual settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Installation and connection . . . . . . . . . . . . . . . . . . . . . . . . 18
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Isfet electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31, 32, 65
K
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
L
Loop current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41, 92
M
Manual calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Measurement procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Mounting plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
O
Operating states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
ORP calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Output current during Error and HOLD . . . . . . . . . . . . . . . 52
Output current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Specify output current . . . . . . . . . . . . . . . . . . . . . . . . .80
Output filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Overview of Stratos e 2211 X pH . . . . . . . . . . . . . . . . . . . 13
P
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Panel mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Passcodes according to FDA 21 CFR Part 11 . . . . . . . . . . . 62
Pipe mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power supply units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Product calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
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Product line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Protective hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
S
Safety functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Information on installation . . . . . . . . . . . . . . . . . . . . . .18
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Sensocheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39, 86
ON / OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Sensoface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39, 86
Sensor monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
T
TC process medium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Temp detection for meas/cal . . . . . . . . . . . . . . . . . . . . . . . 56
Temperature probe adjustment . . . . . . . . . . . . . . . . . . . . . 78
Temperature unit and probe . . . . . . . . . . . . . . . . . . . . . . . 54
Terminal assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Time constant of output filter . . . . . . . . . . . . . . . . . . . . . . 50
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
U
User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
X
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Wiring examples ORP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Wiring examples pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Z
Zero point adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
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Passcodes
The passcodes allow fast access to the functions
Calibration
Key+passcode Description
0000
Page
Cal Info
79
Display of zero and slope
1001
Zero offset ISFET
1100
Slope calibration
1105
Product calibration
1015
Adjusting temp probe
Adjusting zero point (ISFET sensor only)
66
68
Adjusting the slope (sensor)
Adjusting the asymmetry potential (zero)
74
78
Configuration
Page
Key+passcode Description
0000
Error Info
1200
Configuration
47
Sensor monitor
79
2222
5555
79
Display last error and erase
Display uncorrected electrode potential
Current source
Specify output current
80
Passcode editor
Key+passcode Description
1989
Administrator passcode
Changing the passcodes
TA-194.100-KNE05 20080214
Page
62
Software version: 4.x
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