Knick Stratos Pro A201N-CC User manual

®
User Manual Stratos Pro A201N-CC
Dual Conductivity Measurement
Read before installation.
Keep for future use. www.knick.de

2
Supplemental Directives
Read this document and retain it for future reference. Before assem-
bling, installing, operating, or maintaining the product, ensure that
you fully understand the instructions and risks. Observe all safety
instructions. Failure to follow the instructions in this document may
result in serious injury and/or property damage.
This document is subject to change without notice.
These supplemental directives explain how safety information is laid
out in this document and what content it covers.
Safety Chapter
This document's Safety chapter is designed to give the reader a basic
understanding of safety. It illustrates general hazards and gives strate-
gies on how to avoid them.
Safety Guide
The external Safety Guide is designed to give the reader a basic
understanding of safety. It illustrates general hazards and suggests
strategies on how to avoid them.
Warnings
This document uses the following warnings to indicate hazardous
situations:
Symbol Category Meaning Remark
WARNING Designates a situation that can lead to death or
serious (irreversible) injury.
The warnings
contain information
on how to avoid
the hazard.
CAUTION Designates a situation that can lead to slight or
moderate (reversible) injury.
None NOTICE Designates a situation that can lead to property
or environmental damage.
Additional Safety Information
Stratos Safety Guide

3
Documents Supplied
Safety Guide
In ocial EU languages and others
Quickstart Guides
Installation and rst steps:
• Operation
• Menu structure
• Calibration
• Error messages and recommended actions
Test Report 2.2 According to EN 10204
Electronic Documentation
www.knick-international.com:
Manuals + software

4
Table of Contents
Supplemental Directives............................................................... 2
Documents Supplied ..................................................................... 3
Safety ................................................................................................ 6
Always Read and Observe the Safety Instructions!................. 6
Intended Use ......................................................................................... 6
Introduction .................................................................................... 8
Overview of Stratos Pro A201N-CC...........................................10
Assembly........................................................................................11
Package Contents ..............................................................................11
Electrical Installation ...................................................................15
Rating Plates / Terminal Assignments........................................16
Wiring of Stratos Pro A201N-CC...................................................17
Wiring Examples.................................................................................18
User Interface, Keypad ................................................................21
Display............................................................................................22
Signal Colors (Display Backlighting)...........................................22
Measuring Mode...........................................................................23
Selecting the Mode / Entering Values......................................24
Color-Coded User Interface........................................................26
Operating Modes..........................................................................27
HOLD Mode .........................................................................................29
Alarm ......................................................................................................30
Alarm and HOLD Messages............................................................31
Configuration ................................................................................32
Menu Structure of Configuration.................................................32
Setup and Channel Selection on the Device ..........................33
Calculations (CALC) ......................................................................34
Calculating the pH Value by Means of Dual Conductivity
Measurement ......................................................................................36

5
Table of Contents
Configuration (Template for Copy)...........................................42
Configuring Sensors A, B.................................................................44
Current Output 1................................................................................48
Current Output 2................................................................................56
CONTROL Input (TAN SW-A005) .....................................................58
Alarm Settings.....................................................................................60
Time and Date.....................................................................................62
Measuring Point (TAG) ....................................................................64
Display Backlighting .........................................................................64
Calibration .....................................................................................66
Calibration by Input of Cell Factor...............................................67
Measurement ................................................................................68
Diagnostics ....................................................................................69
Service ............................................................................................74
Operating States...........................................................................77
Supply Units and Connection ....................................................78
Product Line and Accessories ....................................................79
Specifications ................................................................................80
Error Handling...............................................................................84
Error Messages..............................................................................85
Decommissioning.........................................................................87
Disposal .................................................................................................87
Returns...................................................................................................87
Sensocheck and Sensoface ........................................................88
HART: Typical Applications.........................................................90
FDA 21 CFR Part 11 ......................................................................91
Electronic Signature – Passcodes.................................................91
Audit Trail..............................................................................................91
Index ...............................................................................................92

6
Safety
Always Read and Observe the Safety Instructions!
The device is constructed in accordance with the latest technology
and generally accepted safety rules and regulations.
Under certain circumstances, however, usage may pose risks to users
or cause damage to the device.
Commissioning must be carried out by specialist personnel authorized
by the operating company. If safe operation is not possible, the device
must not be switched on or, if it is already on, must be switched o
properly and secured against unintended operation.
Reasons to assume safe operation is not possible:
• the device shows visible damage
• failure to perform the intended function
• prolonged storage at temperature of below -30°C/-22°F or above
70°C/158°F
• severe transport stresses
Before recommissioning the device, a professional routine test must
be performed. This test should be carried out by the manufacturer at
its factory.
Intended Use
Stratos Pro A201N-CC is a 2-wire device for two-channel measurement
of electrical conductivity and temperature in liquids. The device has
been designed for measurements before and after cation exchangers
using commercial analog 2-electrode sensors. Dierent parameters
can be calculated from the two conductivity values, e.g. dierence,
ratio, rejection, but also the pH value of feed water.
The dened rated operating conditions must be observed when using
this product. They can be found in the Specications chapter of this
User Manual; see page 80.

7
Safety
Function Check Mode (HOLD Function)
After activating conguration, calibration, or service, StratosPro
enters function check mode (HOLD).
The current outputs respond in accordance with the conguration.
Operations must not be carried out while StratosPro is in function
check(HOLD) mode, as the system may behave unexpectedly and put
users at risk.
Devices Not Intended for Use in Hazardous Locations
Devices identied with an N in their product name must not be used
in hazardous locations.
Conguration
Replacing components may aect intrinsic safety. The modules
are not intended to be replaced on devices in the Stratos Pro A201
product line.

8
Housing and Mounting Options
• The sturdy molded enclosure is designed for IP66/IP67/ TYPE4X
Outdoor protection, is made of PBT glass ber reinforced PC, and
has the following dimensions: H148mm, W148mm, T117mm.
Knockouts in the housing enable
• wall mounting (with sealing plugs to seal the housing)
see page 12
• pipe mounting (Ø 40 … 60 mm, 30 … 45 mm)
see page 13
• panel mounting (cutout 138 mm x 138 mm acc. to DIN43700)
see page 14
Protective Hood (Accessory)
The protective hood, which is available as accessory, provides ad-
ditional protection against direct weather exposure and mechanical
damage; see page 13.
Connection of Sensors, Cable Glands
For connecting the cables, the enclosure provides
• 3 knockouts for M20x1.5 cable glands
• 2 knockouts for ½” conduit
Display
Plain-text messages on a large, backlit LC display enable intuitive op-
eration. You can specify which values are to be displayed in standard
measuring mode (“Main Display,” see page 25).
Color-Coded User Interface
The colored display backlighting indicates dierent operating states
(e.g., alarm: red, HOLD mode: orange; see page 26). The display
backlighting can be switched o; see page 64.
Introduction

9
Introduction
Diagnostic Functions
“Sensocheck” automatically monitors sensor and cables; and the
“Sensoface“ function clearly indicates the sensor condition; see
page88.
Data Logger
The internal logbook (TAN SW-A002) can handle up to 100 entries –
upto 200 with AuditTrail (TAN SW-A003); see page 72.
Password Protection
Password protection (passcodes) for granting access rights during
operation can be congured; see page 76.
TC Process Medium: Selecting the Compensation Method
The following temperature compensation methods are provided:
linear (by entering a temperature coecient), natural waters (nLF),
ultrapure water with traces of NaCl, HCl, NH3, NaOH, see page 44.
Control Inputs (TAN SW-A005)
The oating, digital control input “HOLD“ allows remote controlled
switching to HOLD mode. The “CONTROL“ input allows evaluation of
external monitoring equipment, such as a ow monitoring system.
For that purpose, you can also monitor the current input for keeping a
desired value.
Signal Outputs
The device provides two current outputs (for transmission of
measured value and temperature, for example). The output curve is
adjustable (linear or bilinear), see page 48.
Options
Additional functions can be enabled by entering a TAN (p. 76).

10
Overview
Overview of Stratos Pro A201N-CC
17
9
8
Output 1
Output 2
1
2
3
4
RS 485
5
6
13
14
10
11
Current
input
HOLD
input
CONTROL
input
C
D
E
F
G
H
B
ACC
input
I
K

11
Assembly
Package Contents
Note: Check all components for damage upon receipt.
Do not use damaged parts.
The package should contain:
• Front unit, rear unit, bag containing small parts
• Specific test report
• Documentation (see page 3)
11
10
9
8
76 54
1
2
3
Fig.: Assembling the enclosure
1) Insertable jumper (3x)
2) Plate (1x), for conduit mount-
ing: Plate between housing
and nut
3) Cable tie (3x)
4) Hinge pin (1x), insertable from
either side
5) Enclosure screw (4x)
6) Blanking plug (2x, non-Ex
only)
7) Reduction sealing insert (1x)
8) Cable gland (3x)
9) Blanking cap (2x)
10) Hex nut (5x)
11) Plastic sealing plug (2x),
for sealing in case of wall
mounting

12
Assembly
Mounting Plan, Dimensions
Fig.: Mounting plan (All dimensions in mm!)
1) Cable gland (3 x)
2) Knockouts for cable gland or
½” conduit,
21.5 mm dia. (2 knockouts)
Conduit couplings not
included!
3) Knockout for pipe mounting
(4 x)
4) Knockout for wall mounting
(2 x)
148
148
42 42
42
14
117 41
21
43
12
34 80
74
6.2
4
3

13
Assembly
Pipe Mounting, Protective Hood
Fig.: Protective hood for wall and pipe mounting, accessory ZU 0737
(All dimensions in mm!)
Fig.: Pipe-mount kit, accessory ZU 0274 (All dimensions in mm!)
147199
91
185
1
2
3
4
1) Hose clamp with worm gear
drive to DIN 3017 (2 x)
2) Pipe-mount plate (1 x)
3) For vertical or horizontal posts
or pipes
4) Self-tapping screw (4 x)
ø40...ø60

14
Assembly
Panel Mounting
Fig.: Panel-mount kit, accessory ZU 0738 (All dimensions in mm!)
1) Circumferential sealing (1 x)
2) Screws (4 x)
3) Position of control panel
4) Span piece (4 x)
5) Threaded sleeve (4 x)
Cutout
138 x 138 mm (DIN43700)
< 30 76 31
1...22
1
2345

15
Electrical Installation
Before commencing with the installation, make sure that all lines to be
connected are de-energized.
Observe the safety instructions; see page 6.
Cable Glands
Cable glands 5 cable glands M20 x 1.5 A/F 24mm
Clamping ranges Standard sealing insert: 7 … 13 mm
Reduction sealing insert: 4 … 8 mm
Multiple sealing insert: 5.85 … 6.5 mm
Tensile strain Not permitted; Only suitable for “xed installation”
CAUTION! Risk of losing the specied ingress protection.
Fasten the cable glands and screw together the housing correctly.
Observe the permissible cable diameters and tightening torques.
Only use original accessories and spare parts.
NOTICE! Strip the insulation from the wires using a suitable tool to
prevent damage. For stripping length, see Specications.
1) Wire the current outputs. Deactivate unused current outputs in the
parameter settings or use jumpers.
2) Wire the inputs as necessary.
3) Connect the sensor.
4) Check whether all connections are correctly wired.
5) Close the housing and successively tighten the enclosure screws in a
diagonal pattern.

16
Installation
Rating Plates / Terminal Assignments
Fig.: Stratos Pro A201N rating plate at outside bottom of front
(illustrative example)
Fig.: Terminal assignments of Stratos Pro A201

17
Terminal row 1
In addition:
2 HART pins (between terminal row 1 and 2)
Installation
Wiring of Stratos Pro A201N-CC
Terminal row 2
Areas for placing the
screwdriver to pull out
the terminals
Fig.: Terminals, device opened, back of front unit
Sensor connection
MK-CC module
Fig.: MK-CC module
terminal assignments
1918
HART
10

18
B C D E F G H I K
A
A CELL
A CELL (GND)
A RTD
A RTD (GND)
B CELL
B CELL (GND)
B RTD
B RTD (GND) A SHIELD
B SHIELD
Wiring Examples
Example 1:
Measuring task: Dual conductivity, temperature
Sensors (principle): 2 electrodes, coaxial
Sensors Cable Device
A B

19
B C D E F G H I K
A
A CELL
A CELL (GND)
A RTD
A RTD (GND)
B CELL
B CELL (GND)
B RTD
B RTD (GND) A SHIELD
B SHIELD
Wiring Examples
Example 2:
Measuring task: Dual conductivity, temperature
Sensors: SE604, 2 electrodes
Sensors Cable Device
Black Green White / Pink Brown / Gray Yellow / Red Brown / Gray Yellow / Red White / Pink Black Green
A B

20
B C D E F G H I K
A
A CELL
A CELL (GND)
A RTD
A RTD (GND)
B CELL
B CELL (GND)
B RTD
B RTD (GND) A SHIELD
B SHIELD
Wiring Examples
Example 3:
Measuring task: Dual conductivity, temperature
Sensors: SE610, 2 electrodes
Sensors Cable Device
Black Green White Brown Yellow Brown Yellow White Black Green
A B