Knick Stratos 2201 pH User manual

Instruction Manual
Stratos 2201 (X) pH
Stratos 2211 (X) pH with
HARTrCommunication

Software Version: 3.x
TA-194.100-KNE03 150101
Elektronische Meßgeräte
GmbH & Co.
Beuckestr. 22, D–14163 Berlin
Postfach 37 04 15, D–14134 Berlin
Phone: [phone]
Fax: [phone]
Internet: http://www.knick.de
E-mail: [email protected]
Warranty
Defects occurring within 3 years from delivery date shall
be remedied free of charge at our plant (carriage and
insurance paid by sender).
Accessories: 1 year

Note
Changes 3
Changes for software release 3
Temperature probe adjustment
The Stratos can be adjusted to a connected temperature probe.
This is particularly useful for Pt 100 temperature probes.
(See Pg. 32)
This function should only be used by experts. Incorrectly set parameters may go unnoticed,
but change the measuring properties.

Changes 4

Warning
Warning
Information 5
Safety Precautions
Be sure to read and observe the following requirements!
Never use the Stratos 2201/2211 pH for measurement in areas that are subject to an explo-
sion hazard during operation.
Be sure that the supply voltage does not exceed 30 Vdc.
Stratos 2201/2211 X pH is approved for operation in hazardous locations.
Before connecting the Transmitter to a power supply unit, make sure that this is an associ-
ated apparatus.
Whenever it is likely that the protection has been impaired, the instrument shall be made inoperative and
secured against unintended operation.
The protection is likely to be impaired if, for example:
❏the instrument shows visible damage
❏the instrument fails to perform the intended measurements
❏after prolonged storage at temperatures above 70 °C
❏after severe transport stresses
Before recommissioning the instrument, a professional routine test in accordance with EN 61010-1 must be
performed. This test should be carried out at our factory.
The instrument shall not be used in a manner not specified by this manual.

cal
Note
Warning
conf
cal
Information 6
Information on this Instruction Manual
ITALICS are used for texts which appear in the Stratos 2201/2211 (X) pH display.
Bold print is used to represent keys, e.g. cal.
Keys for which the functions are explained are frequently shown in the
left-hand column.
Notes provide important information that should be strictly followed when using the unit.
Warning means that the instructions given must always be followed for your own safety.
Failure to follow these instructions may result in injuries.
Mode Codes
After pressing conf or cal you can enter one of the following codes to access the desig-
nated mode:
conf, 0000: Error info
conf, 1200: Configuration
conf, 5555: Current source
cal, 0000: Cal info
cal, 1015: Temperature probe adjustment
cal, 1100: Calibration
cal, 2222: Test mode (electrode potential display)

Contents 7
Contents
Safety Precautions 5. . . . . . . . . . . . . . . . . . . . . .
Information on this Instruction Manual 6. . .
Mode Codes 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Assembly 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Package Contents and Unpacking 8. . . .
Assembly 8. . . . . . . . . . . . . . . . . . . . . . . . . .
2 Installation, Connection
and Commissioning 12. . . . . . . . . . . . . . . . .
Proper Use 12. . . . . . . . . . . . . . . . . . . . . . . .
Overview of the Stratos 12. . . . . . . . . . . . . .
Terminal Assignment 13. . . . . . . . . . . . . . . .
Installation and Commissioning 13. . . . . . .
Wiring Diagrams (pH) 14. . . . . . . . . . . . . . .
Wiring Diagrams (ORP) 19. . . . . . . . . . . . .
3 Operation 20. . . . . . . . . . . . . . . . . . . . . . . . . . .
User Interface 20. . . . . . . . . . . . . . . . . . . . . .
Display 21. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad 21. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Functions 22. . . . . . . . . . . . . . . . . . . .
Outputs 23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration 24. . . . . . . . . . . . . . . . . . . . . . .
Calibration 26. . . . . . . . . . . . . . . . . . . . . . . . .
Measurement 33. . . . . . . . . . . . . . . . . . . . . .
4 Diagnostics, Maintenance and Cleaning 34
Sensoface, Sensocheck34. . . . . . . . . .
Error Messages 35. . . . . . . . . . . . . . . . . . . .
Calibration Error Messages 37. . . . . . . . . .
Diagnostics Functions 38. . . . . . . . . . . . . . .
Maintenance and Cleaning 39. . . . . . . . . . .
5 Annex 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Line 40. . . . . . . . . . . . . . . . . . . . . . .
Specifications 41. . . . . . . . . . . . . . . . . . . . . .
Certificate of Conformity 44. . . . . . . . . . . . .
Buffer Charts 47. . . . . . . . . . . . . . . . . . . . . . .
Technical Terms 49. . . . . . . . . . . . . . . . . . . . . . . . .
Index 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly 8
1 Assembly
Package Contents and Unpacking
Unpack the instrument carefully and check the ship-
ment for transport damage and completeness.
The package contains:
–Front unit of Stratos 2201/2211 (X) pH
–Lower case
–Short instruction sheet
–This instruction manual
–Bag containing:
➀2 sealing plugs ➆1 hinge pin
➁5 hexagon nuts ➇3 cable ties
➂3 Pg cable glands ➈3 filler plugs
➃1 rubber reducer ➉3 gaskets
➄1 Pg plug 11 1 washer
➅4 enclosure screws 12 1 jumper
Assembly
Fig. 1 Assembling the case
➀
(For sealing in case
of wall mounting)
➁
➂
➃
➄
➅
➆
(Can be inserted
from either side)
➇
➈
➉
11
For conduit mounting:
Place washer
between enclosure
and nut.
11
12

Assembly 9
80 [3.15]
32 [1.26]
72 [2.83]
6.2 [0.24] approx. 14
84 [3.31]
42 [1.65] Pg 13.5 (3 pcs.)
144 [5.67]
144 [5.67]
21
43 [1.69]
105 [4.13] 27
(not included in supply)
Control panel 1 –22 mm
max. 25 78 [3.07] 27
Control panel cutout
138 x 138 mm (DIN 43700)
Panel-mount kit
consisting of:
4 screws
4 span pieces
4 threaded sleeves
1 seal
➀
➁
➂
➃
➃
➀
➁
➂
Holes for
post mounting
Holes for
wall mounting
(4 x)
(2 x)
For Pg 13.5 threaded cable glands
(use only plastic glands)
[0.55]
[1.06]
[0.83]
[0.98] [1.06]
[5.43 x 5.43]
[0.04 –0.87]
Note: All dimensions
in mm [inches]
Fig. 2 Dimension drawing for Stratos, mounting diagram and ZU 0275 panel-mount kit

Assembly 10
horizontal post/
40–60 mm dia.
➀
➁
➂
ZU 0276 protective hood
(if required)
For vertical or
pipe mounting
Pipe-mount kit
consisting of:
4 self-tapping screws
1 post mounting plate
2 hose clamps with
➀
➁
➂worm gear drive
to DIN 3017
[1.57–2.36]
Fig. 3 ZU 0274 pipe-mount kit
165 [6.5]
173 [6.81]
132 [5.2]
Fig. 4 ZU 0276 protective hood for wall and pipe mounting

Assembly 11
280 [11.03] 7 [0.28]
➀Recommended stripping lengths for
multi-core cables
➁Recommended stripping length for
coaxial cable
➂Pulling out the terminals using a
screwdriver (also see ➆)
➃Cable laying in the Stratos
➄Connecting lines for loop current
➅Cover for electrode and temperature
probe terminals
➆Areas for placing the screwdriver to
pull out the terminals
➇Connection of handheld terminal
➀➁
➃
➄
Be sure not to
notch the cable
cores when stripping
the insulation!
Dimensions in mm [inches].
➄
➅
➆
➇
Coaxial cable
13 mm [0.5]
7 mm [0.28]
➂
Fig. 5 Installation information Stratos 2201/2211 (X) pH

Warning
Warning
Capabilities, Connection 12
2 Installation, Connection and Commissioning
Proper Use
Stratos 2201/2211 (X) pH is used for pH and temper-
ature measurement in industry, the environment,
food processing and waste-water field. It can be
either field-mounted or fixed into a control panel.
Never use the Stratos
2201/2211 pH for measurement in
areas that are subject to an explo-
sion hazard during operation.
Stratos 2201/2211 X pH is ap-
proved for operation in hazardous
locations.
Overview of the Stratos
pH / mV
Sensocheck
Temperature
Pt 100/1000/
NTC 30 kW
Stratos 2201/2211 (X) pH
mA
➀
➁
➂
➃
Fig. 6 System functions of Stratos 2201/2211 (X) pH
➀Inputs for glass and reference electrode
➁Input for temperature probe
➂Current loop 4 –20 mA,
transports power to and output signal from the
Stratos,
with Stratos 2211 (X) pH also for HARTrcommu-
nication
④Equipotential bonding (only with Stratos
2201/2211 X pH)

Warning
Warning
Warning
Warning
Warning
Warning
Capabilities, Connection 13
Terminal Assignment
+11 10
4 to 20 mA+
–
glass el.
9 8 7 6 5 4 2 1
í
output input
shield
–
aux el.
n.c.
HART
observe grounding conditions
reference el.
Fig. 7 Terminal assignment of Stratos 2201/2211 (X) pH
Installation and Commissioning
Installation and commissioning of
the Stratos may only be carried out
in accordance with this instruction
manual and per applicable local
and national codes. Be sure to ob-
serve the technical specifications
and input ratings.
Before connecting the Stratos
2201/2211 pH to a power supply
unit, make sure that this is not ca-
pable of outputting more than
30 Vdc.
Do not use alternating current or
mains power supply!
Stratos 2201/2211 X pH may only
be connected to an explosion-proof
power supply unit (for input ratings
refer to annex of Certificate of Con-
formity).
When commissioning, a complete
configuration must be carried out.
For easier installation, the terminal strips are of a
plug-in design. The terminals are suitable for single
wires and flexible leads up to 2.5 mm2(AWG 14)
(see Pg. 11).
See Pg. 14 and following for connection examples.
Do not use cable clamp (shield) for
reference electrode connection
when auxiliary electrode (solution
ground) is in use.

Capabilities, Connection 14
Wiring Diagrams (pH)
reference el.
glass el. +
í
í
shield
aux. el.
8 7 4 2 1
54 21
5
Temperature
probe Combination
electrode
Fit jumper between
terminals 4 + 5.
Fig. 8a pH measurement with combination electrode and temperature probe,
Sensochecklimited to the glass electrode only
54 21
í
Temperature
probe Combination
electrode
shield
Fit jumper between
terminals 4 + 5.
reference el.
glass el. +
í
aux. el.
8 7 4 2 1 5
Fig. 8b pH measurement with combination electrode and temperature probe,
Sensochecklimited to the glass electrode only

Capabilities, Connection 15
Combination
electrode
shield
54 21
Specify temperature!
Fit jumper between
terminals 4 + 5.
reference el.
glass el. +
í
aux. el.
8 7 4 2 1 5
Fig. 9 pH measurement with combination electrode without temperature probe,
Sensochecklimited to the glass electrode only

Capabilities, Connection 16
54 21
í
shield
reference el.
glass el. +
í
aux. el.
8 5 4 2 1 7
Temperature
probe Glass
electrode
Reference
electrode
Fit jumper between
terminals 4 + 5.
Fig. 10 pH measurement with separate glass and reference electrode and temperature probe,
Sensochecklimited to the glass electrode only
54 21
shield
reference el.
glass el. +
í
aux. el.
8 5 4 2 1 7
Glass
electrode
Reference
electrode
Specify
temperature!
Fit jumper between
terminals 4 + 5.
Fig. 11 pH measurement with separate glass and reference electrode without temperature probe,
Sensochecklimited to the glass electrode only

Capabilities, Connection 17
reference el.
glass el. +
í
í
shield
aux. el.
8 5 4 2 1
54 21
7
Temperature
probe Combination
electrode
Aux.
electrode
Insulate!
Fig. 12 pH measurement with combination and aux. electrode and temperature probe,
Sensocheckfor glass and reference electrode
reference el.
glass el. +
í
shield
aux. el.
8 5 4 2 1
54 21
7
Combination
electrode
Aux.
electrode
Specify
temperature!
Insulate!
Fig. 13 pH measurement with combination and aux. electrode without temperature probe,
Sensocheckfor glass and reference electrode

Capabilities, Connection 18
54 21
í
shield
reference el.
glass el. +
í
aux. el.
8 5 4 2 1 7
Temperature
probe Glass
electrode
Reference
electrode
Aux.
electrode
Fig. 14 pH measurement with separate glass, reference and aux. electrode and temperature probe,
Sensocheckfor glass and reference electrode
54 21
shield
reference el.
glass el. +
í
aux. el.
8 5 4 2 1 7
Glass
electrode
Reference
electrode
Aux.
electrode
Specify
temperature!
Fig. 15 pH measurement with separate glass, reference and aux. electrode without temperature probe,
Sensocheckfor glass and reference electrode

Capabilities, Connection 19
Wiring Diagrams (ORP)
54 21
í
shield
reference el.
glass el. +
í
aux. el.
8 7 4 2 1 5
Insulate!
Temperature
probe combination
ORP electrode
Fig. 16 ORP measurement with separate combination ORP electrode and temperature probe
54 21
shield
reference el.
glass el. +
í
aux. el.
8 7 4 2 1 5
Insulate!
combination
ORP electrode
Specify
temperature!
Fig. 17 ORP measurement with combination ORP electrode without temperature probe

Operation 20
3 Operation
User Interface
meas cal conf
Stratos
cal conf Y"enter
Alarm LED
Keypad
Instrument designation
Rating plate
Status fields:
- Measuring mode
- Calibration mode
- Alarm (Contact only
for Model 2401)
-Wash contact active
(only Model 2401 pH)
- Configuration mode
Fig. 18 Front view of Stratos