Mettler toledo M400 PA User Manual

Operation Manual Multi-parameter Transmitter M400 PA

Transmitter Multiparameter M400 PA 30 134 634

Transmitter M400 PA 3

Operation Manual Multi-parameter Transmitter M400 PA

Transmitter M400 PA 4

Content

1 Introduction ___________________________________________________________________________________________ 9

1.1 Intended Use _____________________________________________________________________________________ 9

2 Safety Instructions _____________________________________________________________________________________ 10

2.1 Denition of Equipment and Documentation Symbols and Designations ______________________________________ 10

2.2 Correct Disposal of the Unit _________________________________________________________________________ 11

2.3 Ex Instructions for M400 series multi-parameter transmitters _______________________________________________ 12

3 Unit Overview _________________________________________________________________________________________ 14

3.1 Overview 1/2DIN _________________________________________________________________________________ 14

3.2 Control / Navigation Keys ___________________________________________________________________________ 15

3.2.1 Menu Structure ___________________________________________________________________________ 15

3.2.2 Navigation Keys __________________________________________________________________________ 15

3.2.2.1 Navigating the Menu Tree _________________________________________________________ 15

3.2.2.2 Escape _______________________________________________________________________ 16

3.2.2.3 ENTER ________________________________________________________________________ 16

3.2.2.4 Menu _________________________________________________________________________ 16

3.2.2.5 Calibration Mode ________________________________________________________________ 16

3.2.2.6 Info Mode _____________________________________________________________________ 16

3.2.3 Navigation of Data Entry Fields ______________________________________________________________ 16

3.2.4 Entry of Data Values, Selection of Data Entry Options _____________________________________________ 16

3.2.5 Navigation with u in Display ________________________________________________________________ 17

3.2.6 ”Save changes” Dialog ____________________________________________________________________ 17

3.2.7 Security Passwords _______________________________________________________________________ 17

3.2.8 Display ________________________________________________________________________________ 17

4 Installation Instruction __________________________________________________________________________________ 18

4.1 Unpacking and Inspection of Equipment _______________________________________________________________ 18

4.1.1 Panel Cutout Dimensional Information – 1/2DIN Models __________________________________________ 18

4.1.2 Installation Procedure _____________________________________________________________________ 19

4.1.3 Assembly – 1/2DIN Version _________________________________________________________________ 19

4.1.4 1/2DIN Version – Dimension Drawings ________________________________________________________ 20

4.1.5 1/2DIN Version – Pipe Mounting _____________________________________________________________ 20

4.2 Connection of Power Supply ________________________________________________________________________ 21

4.2.1 Housing (Wall Mount) _____________________________________________________________________ 21

4.3 Connector PIN Denition ___________________________________________________________________________ 22

4.3.1 Terminal Block (TB) Denitions ______________________________________________________________ 22

4.3.2 TB2 – Conductivity 4-e/2-e Analog Sensors ____________________________________________________ 23

4.3.3 TB2 – pH/ORP Analog Sensors ______________________________________________________________ 23

4.3.4 TB2 – Oxygen Analog Sensors ______________________________________________________________ 24

4.3.5 TB2 – pH, Amp. Oxygen, Ozone, Conductivity 4-e and Dissolved CO2 (Low) ISM (Digital) Sensors _________ 24

4.3.6 TB2 – Optical Oxygen, CO2hi ISM (Digital) Sensors ______________________________________________ 25

4.4 Connection of ISM (Digital) Sensors __________________________________________________________________ 26

4.4.1 Connection of ISM Sensors for pH/ORP, Cond4-e, Amp. Oxygen Measurement and DissolvedCO2 (Low) ____ 26

4.4.2 TB2 – AK9 Cable Assignment _______________________________________________________________ 26

4.4.3 Connection of ISM Sensors for Optical Oxygen Measurement and CO2 hi (InPro 5500i) ___________________ 27

4.5 Connection of Analog Sensors ______________________________________________________________________ 28

4.5.1 Connection of Analog Sensor for pH / ORP ______________________________________________________ 28

4.5.2 TB2 – Typical Wiring for Analog pH/ORP Sensor _________________________________________________ 29

4.5.2.1 Example 1 ____________________________________________________________________ 29

4.5.2.2 Example 2 ____________________________________________________________________ 30

4.5.2.3 Example 3 ____________________________________________________________________ 31

4.5.2.4 Example 4 ____________________________________________________________________ 32

4.5.3 Connection of Analog Sensor for Amperometric Oxygen Measurement ________________________________ 33

4.5.4 TB2 – Typical Wiring for Analog Sensor for Amperometric Oxygen Measurement ________________________ 34

5 Placing Transmitter in, or out, of Service __________________________________________________________________ 35

5.1 Placing Transmitter in Service _______________________________________________________________________ 35

5.2 Placing Transmitter out of Service ___________________________________________________________________ 35

6 Quick Setup __________________________________________________________________________________________ 36

7 Sensor Calibration _____________________________________________________________________________________ 37

7.1 Enter Calibration Mode ____________________________________________________________________________ 37

7.1.1 Select the desired sensor Calibration task ______________________________________________________ 37

7.1.2 Finish Calibration _________________________________________________________________________ 38

Transmitter M400 PA 5

7.2 Conductivity Calibration for Two- or Four-Electrode Sensors ________________________________________________ 39

7.2.1 One-Point Sensor Calibration ________________________________________________________________ 40

7.2.2 Two-Point Sensor Calibration (only for Four-Electrode Sensors) _____________________________________ 41

7.2.3 Process Calibration _______________________________________________________________________ 41

7.3 Calibration of Amperometric Oxygen Sensors ___________________________________________________________ 42

7.3.1 One-Point Calibration for Amperometric Oxygen Sensors __________________________________________ 42

7.3.1.1 Auto Mode _____________________________________________________________________ 43

7.3.1.2 Manual Mode __________________________________________________________________ 43

7.3.2 Process Calibration for Amperometric Oxygen Sensors ____________________________________________ 44

7.4 Calibration of Optical Oxygen Sensors (only for ISM Sensors) ______________________________________________ 45

7.4.1 One-Point Calibration for Optical Oxygen Sensors ________________________________________________ 45

7.4.1.1 Auto mode ____________________________________________________________________ 45

7.4.1.2 Manual Mode __________________________________________________________________ 46

7.4.2 Two-Point Sensor Calibration _______________________________________________________________ 46

7.4.2.1 Auto Mode _____________________________________________________________________ 47

7.4.2.2 Manual Mode __________________________________________________________________ 47

7.4.3 Process Calibration _______________________________________________________________________ 48

7.5 pH Calibration ___________________________________________________________________________________ 49

7.5.1 One-Point Calibration ______________________________________________________________________ 49

7.5.1.1 Auto Mode _____________________________________________________________________ 49

7.5.1.2 Manual Mode __________________________________________________________________ 50

7.5.2 Two-Point Calibration _____________________________________________________________________ 50

7.5.2.1 Auto Mode _____________________________________________________________________ 50

7.5.2.2 Manual Mode __________________________________________________________________ 51

7.5.3 Process Calibration _______________________________________________________________________ 51

7.5.4 mV Calibration (only for Analog Sensors) ______________________________________________________ 52

7.5.5 ORP Calibration (only for ISM Sensors) _______________________________________________________ 53

7.6 Carbon Dioxide Calibration (only for ISM Sensors) _______________________________________________________ 53

7.6.1 One-Point Calibration _____________________________________________________________________ 53

7.6.1.1 Auto Mode _____________________________________________________________________ 54

7.6.1.2 Manual Mode __________________________________________________________________ 54

7.6.2 Two-Point Calibration _____________________________________________________________________ 54

7.6.2.1 Auto Mode _____________________________________________________________________ 55

7.6.2.2 Manual Mode __________________________________________________________________ 55

7.6.3 Process Calibration _______________________________________________________________________ 56

7.7 Calibration of Ozone Sensors (only ISM Sensors) _______________________________________________________ 56

7.7.1 One-Point ZeroPt Calibration for Ozone Sensors _________________________________________________ 56

7.7.2 Process Calibration for Ozone Sensors ________________________________________________________ 57

7.8 Sensor Temperature Calibration (only for Analog Sensors) _________________________________________________ 58

7.8.1 One-Point Sensor Temperature Calibration ______________________________________________________ 58

7.8.2 Two-Point Sensor Temperature Calibration ______________________________________________________ 58

7.9 Edit Sensor Calibration Constants (only for Analog Sensors) _______________________________________________ 59

7.10 Sensor Verication ________________________________________________________________________________ 59

8 Conguration _________________________________________________________________________________________ 60

8.1 Enter Conguration Mode __________________________________________________________________________ 60

8.2 Measurement ___________________________________________________________________________________ 60

8.2.1 Channel Setup ___________________________________________________________________________ 60

8.2.1.1 Analog Sensor __________________________________________________________________ 61

8.2.1.2 ISM Sensor ____________________________________________________________________ 61

8.2.1.3 Save Changes of the Channel Setup _________________________________________________ 62

8.2.2 Temperature Source (only for Analog Sensors) __________________________________________________ 62

8.2.3 Parameter Related Settings _________________________________________________________________ 63

8.2.3.1 Conductivity Temperature Compensation _____________________________________________ 63

8.2.3.2 Concentration Table _____________________________________________________________ 64

8.2.3.3 pH / ORP Parameters _____________________________________________________________ 66

8.2.3.4 Parameters for Oxygen Measurement Based on Amperometric Sensors ______________________ 67

8.2.3.5 Parameters for Oxygen Measurement Based on Optical Sensors ___________________________ 68

8.2.3.6 Adjusting Sampling Rate for Optical Sensors __________________________________________ 69

8.2.3.7 LED Mode _____________________________________________________________________ 69

8.2.3.8 Dissolved Carbon Dioxide Parameters _______________________________________________ 70

8.2.3.9 Thermal condcutivity dissolved carbon dioxide parameters _______________________________ 71

8.2.4 Set Averaging ____________________________________________________________________________ 72

8.3 Alarm / Clean ___________________________________________________________________________________ 72

8.3.1 Alarm __________________________________________________________________________________ 73

8.3.2 Clean __________________________________________________________________________________ 74

Transmitter M400 PA 6

8.4 ISM Set Up (Available for pH, Oxygen and Dissolved Carbon Dioxid ISM Sensors) ______________________________ 75

8.4.1 Sensor Monitoring ________________________________________________________________________ 75

8.4.2 CIP Cycle Limit ___________________________________________________________________________ 77

8.4.3 SIP Cycle Limit ___________________________________________________________________________ 77

8.4.4 Autoclaving Cycle Limit ____________________________________________________________________ 78

8.4.5 Reset ISM Counter / Timer ___________________________________________________________________ 79

8.4.6 DLI Stress Adjustment (only for pH ISM Sensors) ________________________________________________ 79

8.5 Display ________________________________________________________________________________________ 80

8.5.1 Measurement ____________________________________________________________________________ 80

8.5.2 Resolution ______________________________________________________________________________ 80

8.5.3 Backlight _______________________________________________________________________________ 81

8.5.4 Name __________________________________________________________________________________ 81

8.5.5 ISM Sensor Monitoring (Available when ISM Sensor Connected) _____________________________________ 81

8.6 Hold Outputs ____________________________________________________________________________________ 82

9 System ______________________________________________________________________________________________ 83

9.1 Set Language ___________________________________________________________________________________ 83

9.2 Passwords _____________________________________________________________________________________ 83

9.2.1 Changing Passwords ______________________________________________________________________ 84

9.2.2 Conguring Menu Access for Operator _________________________________________________________ 84

9.3 Set / Clear Lockout ________________________________________________________________________________ 84

9.4 Reset __________________________________________________________________________________________ 85

9.4.1 Reset System ____________________________________________________________________________ 85

9.4.2 Reset Meter Calibration ____________________________________________________________________ 85

9.5 Set Date & Time _________________________________________________________________________________ 85

10 Service ______________________________________________________________________________________________ 86

10.1 Diagnostics _____________________________________________________________________________________ 86

10.1.1 Model / Software Revision ___________________________________________________________________ 86

10.1.2 Display ________________________________________________________________________________ 86

10.1.3 Keypad ________________________________________________________________________________ 87

10.1.4 Memory ________________________________________________________________________________ 87

10.1.5 Read Analog Inputs _______________________________________________________________________ 87

10.1.6 02 Optical _______________________________________________________________________________ 87

10.2 Calibrate _______________________________________________________________________________________ 88

10.2.1 Calibrate Meter (only for Channel A) __________________________________________________________ 88

10.2.1.1 Resistance ____________________________________________________________________ 88

10.2.1.2 Temperature ___________________________________________________________________ 89

10.2.1.3 Current _______________________________________________________________________ 90

10.2.1.4 Voltage _______________________________________________________________________ 91

10.2.1.5 Rg Diagnostic __________________________________________________________________ 91

10.2.1.6 Rr Diagnostic __________________________________________________________________ 92

10.2.1.7 Calibrate Analog Input Signal ______________________________________________________ 92

10.2.2 Calibrate Unlock __________________________________________________________________________ 93

10.3 Tech Service ____________________________________________________________________________________ 93

11 Info _________________________________________________________________________________________________ 94

11.1 Messages ______________________________________________________________________________________ 94

11.2 Calibration Data _________________________________________________________________________________ 94

11.3 Model / Software Revision __________________________________________________________________________ 95

11.4 ISM Sensor Info (Available when ISM Sensor Connected) __________________________________________________ 95

11.5 ISM Sensor Diagnostics (Available when ISM Sensor Connected) ___________________________________________ 95

12 PROFIBUS PA Interface _________________________________________________________________________________ 98

12.1 General ________________________________________________________________________________________ 98

12.1.1 System Architecture _______________________________________________________________________ 98

12.2 M400 PA Block Model ____________________________________________________________________________ 99

12.2.1 Block Conguration ______________________________________________________________________100

12.3 Commissioning _________________________________________________________________________________ 101

12.3.1 Network Conguration ____________________________________________________________________101

12.3.2 Set PROFIBUS address ____________________________________________________________________ 101

12.3.3 Device Master File (GSD le) _______________________________________________________________101

13 Maintenance _________________________________________________________________________________________ 103

13.1 Front Panel Cleaning _____________________________________________________________________________ 103

14 Troubleshooting ______________________________________________________________________________________ 104

14.1 Cond (resistive) Error Messages / Warning- and Alarm List for Analog Sensors ________________________________ 104

Transmitter M400 PA 7

14.2 Cond (resistive) Error Messages / Warning- and Alarm List for ISM Sensors

_____________________________________________________________105

14.3 pH Error Messages / Warning- and Alarm List _________________________________________________________ 105

14.3.1 pH Sensors except Dual Membrane pH Electrodes ______________________________________________ 105

14.3.2 Dual Membrane pH Electrodes (pH / pNa) ____________________________________________________ 106

14.3.3 ORP Messages _________________________________________________________________________ 106

14.4 Amperometric O2 Error Messages / Warning- and Alarm List ______________________________________________ 107

14.4.1 High Level Oxygen Sensors ________________________________________________________________ 107

14.4.2 Low Level Oxygen Sensors ________________________________________________________________ 107

14.4.3 Trace Oxygen Sensors ____________________________________________________________________ 108

14.5 Optical O2 Error Messages / Warning- and Alarm List ____________________________________________________ 108

14.6 Dissolved Carbon Dioxide Error Messages / Warning- and Alarm List _______________________________________ 109

14.7 Thermal conductivity CO2 sensor / Warning- and alarm messages __________________________________________ 109

14.8 Warning- and Alarm Indication on the Display ________________________________________________________ 110

14.8.1 Warning Indication_______________________________________________________________________110

14.8.2 Alarm Indication _________________________________________________________________________ 110

15 Accessories and Spare Parts ____________________________________________________________________________111

16 Specications ________________________________________________________________________________________ 112

16.1 General Specications ____________________________________________________________________________ 112

16.2 Electrical Specications ___________________________________________________________________________ 116

16.3 PROFIBUS PA Interface Specication _________________________________________________________________ 116

16.4 Mechanical Specication _________________________________________________________________________116

16.5 Environmental Specications ______________________________________________________________________ 117

17 Default Table ________________________________________________________________________________________ 118

18 Warranty ____________________________________________________________________________________________123

19 Buffer tables _________________________________________________________________________________________124

19.1 Standard pH buffers _____________________________________________________________________________ 124

19.1.1 Mettler-9 _______________________________________________________________________________124

19.1.2 Mettler-10 _____________________________________________________________________________ 125

19.1.3 NIST Technical Buffers ____________________________________________________________________ 125

19.1.4 NIST standard buffers (DIN and JIS 19266: 2000–01) __________________________________________ 126

19.1.5 Hach buffers ___________________________________________________________________________ 126

19.1.6 Ciba (94) buffers ________________________________________________________________________ 127

19.1.7 Merck Titrisole, Riedel-de-Haën Fixanale _____________________________________________________ 127

19.1.8 WTW buffers ___________________________________________________________________________ 128

19.1.9 JIS Z 8802 buffers _______________________________________________________________________128

19.2 Dual membrane pH electrode buffers ________________________________________________________________ 129

19.2.1 Mettler-pH/pNa buffers (Na+ 3.9M) __________________________________________________________129

Transmitter M400 PA 8

Transmitter M400 PA 9

1 Introduction

1.1 Intended Use

The M400 PA multi-parameter transmitter is a single channel online process instrument with PROFIBUS® communication capabilities for measuring various properties of fluids and gases. The transmitter is able to measure following parameters: pH/ORP, Oxygen, Dissolved Carbon Dioxide, Conductivity and Ozone. The M400 PA is a mixed mode transmitter able to handle analog or ISM (digital) sensors.

M400 PA parameter fit guide

Parameter M400 PA

Analog ISM pH / ORP • • pH / pNa – • Conductivity 2-e • – Conductivity 4-e • •** Amp. DO* ppm/ppb/trace •/•/• •/•/• Amp. O2 • • Optical Oxygen ppm/ppb – •/• Dissolved Carbon Dioxide (low) – • Ozone – • CO2 hi (InPro 5500i) – • * THORNTON and INGOLD sensors ** INGOLD sensors

A large four line backlit Liquid Crystal Display conveys measuring data and setup information. The menu structure allows the operator to modify all operational parameters by using keys on the front panel. A menu-lockout feature, with password protection, is available to prevent the unauthorized use of the meter. Via the PROFIBUS PA interface the Analog Output Block, Discrete Input Block and Discrete Output Block can be configured for Alarm/Clean status, Hold status and pressure compensation.

This description corresponds to the firmware release, version V1.0.0 for transmitter M400 PA. Changes are taking place constantly, without prior notification.

Transmitter M400 PA 10

2 Safety Instructions

This manual includes safety information with the following designations and formats.

2.1 Denition of Equipment and Documentation Symbols and Designations

WARNING: POTENTIAL FOR PERSONAL INJURY.

a

CAUTION: possible instrument damage or malfunction.

a

NOTE: Important operating information.

h

On the transmitter or in this manual text indicates: Caution and/or other possible hazard includ-

a

ing risk of electric shock (refer to accompanying documents)

The following is a list of general safety instructions and warnings. Failure to adhere to these instructions can result in damage to the equipment and/or personal injury to the operator.

– The M400 Transmitter should be installed and operated only by personnel familiar with the

transmitter and who are qualified for such work.

– The M400 Transmitter must only be operated under the specified operating conditions (see

section 16 “Specifications”). – Repair of the M400 Transmitter must be performed by authorized, trained personnel only. – With the exception of routine maintenance, cleaning procedures or fuse replacement, as de-

scribed in this manual, the M400 Transmitter must not be tampered with or altered in any

manner. – METTLER TOLEDO accepts no responsibility for damage caused by unauthorized modifica-

tions to the transmitter. – Follow all warnings, cautions, and instructions indicated on and supplied with this product. – Install equipment as specified in this instruction manual. Follow appropriate local and na-

tional codes. – Protective covers must be in place at all times during normal operation. – If this equipment is used in a manner not specified by the manufacturer, the protection pro-

vided by it against hazards may be impaired.

WARNINGS:

Installation of cable connections and servicing of this product require access to shock hazard voltage levels. Main power wired to separate power source must be disconnected before servicing. Switch or circuit breaker shall be in close proximity to the equipment and within easy reach of the OPERATOR; it shall be marked as the disconnecting device for the equipment. Main power must employ a switch or circuit breaker as the disconnecting device for the equipment. Electrical installation must be in accordance with the National Electrical Code and/or any other applicable national or local codes.

Transmitter M400 PA 11

NOTE: PROCESS UPSETS

h

Because process and safety conditions may depend on consistent operation of this transmitter, provide appropriate means to maintain operation during sensor cleaning, replacement or sensor or instrument calibration.

2.2 Correct Disposal of the Unit

When the transmitter is finally removed from service, observe all local environmental regulations for proper disposal.

Transmitter M400 PA 12

2.3 Ex Instructions for M400 series multi-parameter

transmitters

M400 series multi-parameter transmitters are produced by Mettler-Toledo AG. It has passed the inspection of IECEx and conforms to following standards:

– IEC 60079-0 : 2011

Edition: 6.0 Explosive atmospheres –

Part 0: General requirements

– IEC 60079-11 : 2011

Edition: 6.0 Explosive atmospheres –

Part 11: Equipment protection by intrinsic safety “i”

– IEC 60079-26 : 2006

Edition: 2 Explosive atmospheres –

Part 26: Equipment with equipment protection level (EPL) Ga

Ex Marking: – Ex ib [ia Ga] IIC T4 Gb – Ex ib [ia Da] IIIC T80°C Db IP66

Certificate No.: – IECEx CQM 12.0021X – SEV 12 ATEX 0132 X

1. Special Conditions of use (X-marking in the Certificate Number):

1. Avoid ignition hazard due to impact or friction, prevent mechanical sparks.

2. Avoid electrostatic discharge on enclosure surface, use wet cloth only for cleaning.

3. In hazardous area, IP66 cable glands (as supplied ) must be mounted.

2. Attention of use:

1. Rated ambient temperature range:

– for gas atmosphere: – 20 ~ + 60 °C

– for dust atmosphere: – 20 ~ + 57 °C

2. No operation on the upgrade interface in hazardous area.

3. Users shall not arbitrarily replace the internal electrical components.

4. When installation, use and maintenance, IEC 60079-14 should be observed.

5. When installation in explosive dust atmosphere

5.1 Cable gland or blanking plug to IEC 60079-0:2011 and IEC 60079-11:

2011 with marking Ex e IIC IP66 should be adopted.

5.2 The overlay switch of multi-parameter transmitter shall be protected from light.

5.3 Avoid high risk of mechanical danger on the overlay switch.

6. Observe the warning: potential electrostatic charging hazard- see instructions, avoid ignition

hazard due to impact or friction for Ga application.

7. For connection to intrinsically safe circuits, use the following maximum values

Transmitter M400 PA 13

Terminal Function Safety Parameters

10, 11

Power (PA) FISCO field device

= 17.5 V Ii = 380 mA Pi = 5.32 W Li = 0 Ci = 3 nF

U

i

Linear power U

P, Q Analog input U

N, O RS485 sensor

L, M One-wire sensor U

I, J, K Temperature sensor U

B, C, D, H

Dissolved oxygen sensor

A, B, E, G Conductivity sensor U

A, E, G pH sensor U

= 24 V Ii = 200 mA Pi = 1.2 W Li = 0 Ci = 3 nF

i

= 24 V Ii = 100 mA Pi = 0.8 W Li = 0 Ci = 15 nF

i

U

= 5.88 V

o

Ui = 24 V

= 5.88 V Io = 22 mA Po = 32 mW Lo = 1 mH Co = 2.8 μF

o

= 5.88 V Io = 5.4 mA Po = 8 mW Lo = 5 mH Co = 2 μF

o

= 5.88 V Io = 29 mA Po = 43 mW Lo = 1 mH Co = 2.5 μF

U

o

= 5.88 V Io = 29 mA Po = 43 mW Lo = 1 mH Co = 2.5 μF

o

= 5.88 V Io = 1.3 mA Po = 1.9 mW Lo = 5 mH Co = 2.1 μF

o

Io = 54 mA Ii = 100 mA

Po = 79 mW Pi = 0.8 W

Lo = 1 mH Li = 0

Co = 1.9 μF Ci = 0.7 μF

Label M400 PA.

Transmitter M400 PA 14

3 Unit Overview

The M400 models are available in 1/2DIN case size. The M400 models provide an integral IP66/NEMA4X housing for wall- or pipe mount.

3.1 Overview 1/2DIN

150 mm/5.90"

1

M400

3

ESC

150 mm/5.90"

CalMenu

2

EnterInfo

2

1

1: Hard Polycarbonate Case 1: TB1 – PA 2: Five Tactile-Feedback Navigation Keys 2: TB2 – Sensor Signal 3: Four-line LC Display

Transmitter M400 PA 15

Menu Cal

Info

Enter

ESC

3.2 Control / Navigation Keys

3.2.1 Menu Structure

Below is the structure of the M400 menu tree:

Measurement

Mode M400 PA

CalMenu Info

Quick Setup Conﬁgure System Service

Channel Select Measurement

Alarm/Clean

ISM Setup*

Display

Hold Outputs

Set Language

Passwords

Set/Clear

Lockout

Reset

Set Date & Time

PA address

3.2.2 Navigation Keys

Diagnostics

Calibrate

Tech Service

Messages

ISM Sensor

Info*

* Only available in combination with ISM sensors

Calibration Data

ISM

Diagnostics*

Model/Software

Revision

h

3.2.2.1 Navigating the Menu Tree

Enter the desired main Menu branch with the  c or  keys. Use the  and . keys to navigate through the selected Menu branch.

NOTE: In order to back up one menu page, without escaping to the measurement mode,

movethe cursor under the UP Arrow character (u) at the bottom right of the display screenandpress [ENTER].

Transmitter M400 PA 16

3.2.2.2 Escape

Press the  and c key simultaneously (escape) to return to the Measurement mode.

3.2.2.3 ENTER

Use the e key to confirm action or selections.

3.2.2.4 Menu

Press the  key to access the main Menu.

3.2.2.5 Calibration Mode

Press the c key to enter Calibration mode.

3.2.2.6 Info Mode

Press the . key to enter Info mode.

3.2.3 Navigation of Data Entry Fields

Use the c key to navigate forward or the  key to navigate backwards within the changeable data entry fields of the display.

3.2.4 Entry of Data Values, Selection of Data Entry Options

Use the  key to increase or the . key to decrease a digit. Use the same keys to navigate within a selection of values or options of a data entry field.

NOTE: Some screens require configuring multiple values via the same data field. Be sure to use

h

the c or  key to return to the primary field and the  or . key to toggle between all configuration options before entering to the next display screen.

Transmitter M400 PA 17

3.2.5 Navigation with u in Display

If a u is displayed on the bottom right hand corner of the display, you can use the c or the

 key to navigate to it. If you click [ENTER] you will navigate backwards through the menu (go

back one screen). This can be a very useful option to move back up the menu tree without having to exit into the measuring mode and re-enter the menu.

3.2.6 ”Save changes” Dialog

Three options are possible for the ”Save changes” dialog: Yes & Exit (Save changes and exit to measuring mode), ”Yes & u” (Save changes and go back one screen) and ”No & Exit” (Don’t save changes and exit to measuring mode). The ”Yes & u” option is very useful if you want to continue configuring without having to re-enter the menu.

3.2.7 Security Passwords

The M400 transmitter allows a security lock-out of various menus. If the security lock-out feature of the transmitter has been enabled, a security password must be entered to allow access to the menu. See section 9.3 “Set / Clear Lockout” for more information.

3.2.8 Display

NOTE: In the event of an alarm or other error condition the M400 Transmitter will display a flash-

h

NOTE: Channel A indicates that an analog sensor is connected to the transmitter. Channel B in-

h

NOTE: During calibration of an analog sensor a flashing ”H” (Hold) appears in the upper left

h

ing a a in the upper right corner of the display. This symbol will remain until the condition that caused it has been cleared.

dicates, that an ISM (digital) sensor is connected to the transmitter.

corner of the display. During calibration of an ISM sensor a flashing ”H” (Hold) appears. This symbol will remain for 20 sec., after end of calibration. This symbol will remain for 20 seconds until after the calibration or clean is completed. This symbol will also disappear when Digital In is deactivated.

The M400 is a single input channel transmitter, and only one sensor can be connected at the same time.

Transmitter M400 PA 18

4 Installation Instruction

4.1 Unpacking and Inspection of Equipment

Inspect the shipping container. If it is damaged, contact the shipper immediately for instructions. Do not discard the box.

If there is no apparent damage, unpack the container. Be sure all items shown on the packing list are present.

If items are missing, notify METTLER TOLEDO immediately.

4.1.1 Panel Cutout Dimensional Information –

1/2DIN Models

1/2DIN Model transmitters are designed with an integral rear cover for stand-alone wall mount installation.

The unit may also be wall mounted using the integral rear cover. See installation instructions in section 4.1.2 “Installation Procedure”.

Below are cut-out dimensions required by the 1/2DIN models when mounted within a flat panel or on a flat enclosure door. This surface must be flat and smooth. Textured or rough surfaces are not recommended and may limit the effectiveness of the gasket seal provided.

137 mm

– 0.0 mm

(5.39"

– 0.00"

+ 0.5 mm

+ 0.02"

)

+ 0.5 mm

+ 0.02"

– 0.0 mm

137 mm

(5.39"

– 0.00"

PANEL CUT-OUT

Optional hardware accessories are available that allow for panel- or pipe-mount. Refer to section 15 “Accessories and Spare Parts” for ordering information.

Transmitter M400 PA 19

4.1.2 Installation Procedure

General:

– Orient the transmitter so that the cable grips face downward. – Wiring routed through the cable grips shall be suitable for use in wet locations. – In order provide IP66 enclosure ratings, all cable glands must be in place. Each cable gland

must be filled using a cable, or suitable Cable Gland Hole Seal.

For Wall Mount:

– Remove rear cover from front housing. – Start by unscrewing the four screws located on the face of the transmitter, in each corner. This

allows the front cover to swing away from the rear housing. – Remove the hinge-pin by squeezing the pin from each end. This allows the front housing to

be removed from the rear housing – Mount rear housing to wall. Secure mounting kit to the M400 according to the supplied

instructions. Attach to wall using appropriate mounting hardware for wall surface. Be sure it

is level and securely fastened and the installation adheres to any and all clearance dimen-

sions required for transmitter service and maintenance. Orient the transmitter so that the

cable grips are facing downward. – Replace the front housing to the rear housing. Securely tighten the rear-cover screws to

ensure that IP66/NEMA4X enclosure environmental rating is maintained. The unit is ready to

be wired.

For Pipe Mount:

– Use only manufacturer-supplied components for pipe-mounting the M400 transmitter and

install per the supplied instructions. See section 15 “Accessories and Spare Parts” for order-

ing information.

4.1.3 Assembly – 1/2DIN Version

1

2

3

1. 5 pieces M20X1.5 cable glands

2. 2 pieces plastics plugs

3. 3 pieces screws

Transmitter M400 PA 20

150 mm/5.9"

114 mm/4.49"

90 mm/3.54"

4.1.4 1/2DIN Version – Dimension Drawings

35mm/

1.38”

150 mm/5.9"

43 mm

1.69"

90 mm

3.54"

80 mm/3.15"

27 mm

1.06"

M400

136 mm/5.35"

28 mm

1.10"

75 mm/2.95"

6 mm/

0.236”

4.1.5 1/2DIN Version – Pipe Mounting

40 ... 60 mm 1.57... 2.36"

Transmitter M400 PA 21

4.2 Connection of Power Supply

All connections to the transmitter are made on the rear panel of all models.

Be sure power to all wires is turned off before proceeding with the installation.

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A two-terminal connector on the rear panel of all M400 models is provided for power connection. All M400 PA models are designed to operate in non-hazardous area from a 9 to 32VDC power source (linear barrier: 9 to 24VDC). Refer to specifications for power requirements and ratings and size power wiring accordingly (AWG 16 – 24, wire cross-section 0.2 mm2 to

1.5mm2).

The terminal block for power connections is labeled ”PROFIBUS PA” on the rear panel of the transmitter. Connect the transmitter to the –PROFIBUS PA and + PROFIBUS PA terminals.

The terminals are suitable for single wires and flexible leads 0.2 mm2 to 2.5 mm2 (AWG 16 – 24). –PROFIBUS PA and +PROFIBUS PA terminals are available twice. There is no earth ground terminal on the transmitter. For this reason the internal power wiring within the transmitter is double insulated and the product label designates this using the d symbol.

For further information e. g. on the cable specifications, see PNO-Richtlinie 2.092 PROFIBUS PA “User and Installation Guideline” and IEC61158-2 (MBP).

4.2.1 Housing (Wall Mount)

2

1

1: TB1 – PROFIBUS PA 2: TB2 – Sensor Signal

Transmitter M400 PA 22

4.3 Connector PIN Denition

4.3.1 Terminal Block (TB) Denitions

A Q

10 15

Power connections are labeled + PROFIBUS PA and – PROFIBUS PA for non-hazardous area: 9 to 32VDC

TB1

1 Not available

2 Not available

3 Not available

4 Not available

5 Not available

6 Not available

7 Not available

8 Not available

9 Not available

10 +PROFIBUS PA 11 –PROFIBUS PA 12 +PROFIBUS PA 13 –PROFIBUS PA 14 Not used 15

TB2

TB1

Transmitter M400 PA 23

4.3.2 TB2 – Conductivity 4-e/2-e Analog Sensors

TB2 – Analog Sensors

Cond 4-e or 2-e

Terminal Function Color

A Cnd inner1* white B Cnd outer1* white/blue C Cnd outer1 – D Not used – E Cnd outer2 – F Cnd inner2** blue G Cnd outer2 (GND)** black H Not used – I RTD ret/GND bare shield J RTD sense red K RTD green L Not used – M Not used – N Not used – O Not used – P Not used – Q Not used –

* For third party Cond 2-e sensors a jumper between A and C may be required. ** For third party Cond 2-e sensors a jumper between F and G may be required.

4.3.3 TB2 – pH/ORP Analog Sensors

TB2 – Analog Sensors

pH Redox (ORP)

Terminal Function Color* Function Color

A Glass transparent Platinum transparent B Not used – – – C Not used – – – D Not used – – – E Reference red Reference red F Reference** – Reference** – G Solution H Not used – – – I RTD ret/GND white – – J RTD sense – – – K RTD green – – L Not used – – – M Shield (GND) green/yellow Shield (GND) green/yellow N Not used – – – O Not used – – – P Not used – – – Q Not used – – –

GND** blue*** Solution GND** –

* Grey wire not used. ** Install jumper between F and G for ORP sensors and pH electrodes without SG. *** Blue wire for electrode with SG.

Transmitter M400 PA 24

4.3.4 TB2 – Oxygen Analog Sensors

InPro6800(G) InPro6900 InPro6950

Terminal Function Color Color Color

A Not used – – – B Anode red red red C Anode –* –* – D Reference –* –* blue E Not used – – – F Not used – – – G Guard – grey grey H Cathode transparent transparent transparent I NTC ret (GND) white white white J Not used – – – K NTC green green green L Not used – – – M Shield (GND) green/yellow green/yellow green/yellow N Not used – – – O Not used – – – P + input 4/20 mA signal – – – Q – input 4/20 mA signal – – –

* Install jumper between C and D for InPro 6800(G) and InPro 6900

4.3.5 TB2 – pH, Amp. Oxygen, Ozone, Conductivity 4-e and

Dissolved CO

pH, Amp. Oxygen, Ozone, Cond 4-e, Dissolved CO

Terminal Function Color

A Not used – B Not used – C Not used – D Not used – E Not used – F Not used – G Not used – H Not used – I Not used – J Not used – K Not used – L 1-wire transparent (cable core) M GND red (shield) N RS485-B – O RS485-A – P Not used – Q Not used –

(Low) ISM (Digital) Sensors

2

Transmitter M400 PA 25

4.3.6 TB2 – Optical Oxygen, CO2hi ISM (Digital) Sensors

Optical Oxygen with VP8 Cable*

Optical Oxygen with other Cables**,

CO2hi (InPro 5500i)

Terminal Function Color Function Color

A Not used – Not used – B Not used – Not used – C Not used – Not used – D Not used – Not used – E Not used – Not used – F Not used – Not used – G Not used – Not used – H Not used – Not used – I Not used – Not used yellow J Not used – Not used – K Not used – Not used – L Not used – Not used – M D_GND (shield) green/yellow D_GND (shield) grey N RS485-B brown RS485-B blue O RS485-A pink RS485-A white P Not used – Not used – Q Not used – Not used –

* Connect the grey +24DC wire and the blue D_GND 24V wire of the sensor separately. ** Connect the brown +24DC wire and the black D_GND 24V wire of the sensor separately.

Transmitter M400 PA 26

4.4 Connection of ISM (Digital) Sensors

4.4.1 Connection of ISM Sensors for pH/ORP, Cond4-e,

Amp. Oxygen Measurement and DissolvedCO

**

*

(Low)

2

NOTE: Connect the sensor and screw the plug head clockwise (hand tight).

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4.4.2 TB2 – AK9 Cable Assignment

* 1-wire data (transparent) ** Ground/shield

Transmitter M400 PA 27

4.4.3 Connection of ISM Sensors for Optical Oxygen

Measurement and CO

F

B

A

E

D

C

A B C D E F

hi (InPro 5500i)

2

NOTE: Connect the Sensor and screw the plug head clockwise (hand tight).

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NOTE: The illustration does not apply for optical oxygen ISM sensors with VP8 cable.

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Transmitter M400 PA 28

4.5 Connection of Analog Sensors

4.5.1 Connection of Analog Sensor for pH / ORP

A

F

E

B

D

C

A B C D E F S

NOTE: Cable lengths > 20 m can worsen the response during pH measurement. Be sure to

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observe the sensor instruction manual.

Transmitter M400 PA 29

4.5.2 TB2 – Typical Wiring for Analog pH/ORP Sensor

4.5.2.1 Example 1

pH measurement without Solution Ground

M

L

K

J

I

H

G

Jumper

F

Temperature probe

NOTE: Jumper terminals G and F

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Wire Colors only valid for connection with VP cable; blue and grey not connected. A: Glass E: Reference I: RTD ret/GND K: RTD M: Shield/GND

yellowgreen

white

green

red

E

B

A

Cable

transparent

Combination pH electrode

Transmitter M400 PA 30

4.5.2.2 Example 2

pH measurement with Solution Ground

M

L

K

J

I

H

G

F

E

B

A

Cable

yellowgreen

red

blue

white

green

Temperature probe

NOTE: Wire colors only valid for connection with VP cable, grey not connected.

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transparent

Combination pH electrode with RTD and SG

A: Glass E: Reference G: Shield/Solution GND I: GND/RTD ret K: RTD M: Shield (GND)

Transmitter M400 PA 31

4.5.2.3 Example 3

ORP (redox) measurement (temperature optional)

M

L

K

J

I

H

G

Jumper

F

E

B

A

Temperature probe

NOTE: Jumper terminal G and F

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A: Platinum E: Reference I: RTD ret/GND K: RTD M: Shield (GND)

Reference electrode

Sensing electrode

Cable

ORP electrode

Transmitter M400 PA 32

4.5.2.4 Example 4

ORP measurement with pH solution ground electrode (e.g. InPro 3250, InPro 4800 SG).

M

L

K

J

I

H

G

Jumper

F

E

Temperature probe

NOTE: Jumper terminal G and F

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A: Platinum E: Reference I: RTD ret/GND K: RTD M: Shield (GND)

yellowgreen

white

green

blue

Not connected

red

transparent

B

A

Cable

Combination pH electrode with RTD and SG

Transmitter M400 PA 33

4.5.3 Connection of Analog Sensor for Amperometric

Oxygen Measurement

F

B

A

E

D

C

A B C D E F

NOTE: Be sure to observe the sensor instruction manual.

h

Transmitter M400 PA 34

4.5.4 TB2 – Typical Wiring for Analog Sensor for

Amperometric Oxygen Measurement

M

K

I

H

G

F

E

D

C

B

A

yellow/green

NOTE: Wire colors only valid for connection with VP cable, but not connected.

h

red

transparent

blue

grey

een

gr

white

M400 connector: B: Anode G: Reference H: Cathode I: NTC ret/Guard K: NTC M: Shield (GND)

Transmitter M400 PA 35

5 Placing Transmitter in, or out, of Service

5.1 Placing Transmitter in Service

WARNING: After connecting the transmitter to power supply circuit, it will be active as soon as

the circuit is powered.

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5.2 Placing Transmitter out of Service

Switch on power supply. Disconnect the unit from the main power source. Disconnect all remaining electrical connections. Remove the unit from the wall / panel. Use the installation instruction in this manual as reference for dis-assembling mounting hardware.

All transmitter settings stored in memory are non volatile.

Transmitter M400 PA 36

6 Quick Setup

(PATH: Menu / Quick Setup)

Select Quick Setup and press the [ENTER] key. Enter the security code if necessary (see section9.2 “Passwords”)

NOTE: Please find the complete description of the Quick Setup routine described in the separate

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NOTE: Please do not use Quick Setup menu after configuration of the transmitter, because some

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NOTE: Refer to section 3.2 “Control / Navigation Keys” for information on menu navigation.

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booklet “Quick Setup Guide for Transmitter M400” enclosed in the box.

of the parameters will may be reseted.

Transmitter M400 PA 37

7 Sensor Calibration

(PATH: Cal)

The calibration key c allows the user one-touch access to sensor calibration and verification features.

NOTE: During Calibration on Channel A or B, a flashing ”H” (Hold) on the left side of the Display

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indicates a calibration is in process with a Hold condition active. The hold output needs to be activated. See also section 3.2.8 “Display”.

7.1 Enter Calibration Mode

While in Measurement mode press the c key. If the display prompts you to enter the Calibration

security code, press the  or . key to set the calibration security mode, the [ENTER] key to confirm the calibration security code.

Press the  or . key to select the type of calibration desired.

7.1.1 Select the desired sensor Calibration task

For analog sensors depending on sensor type, the following choices are available: Conductivity = Conductivity, Resistivity, Temperature, Edit, Verify Amp. Oxygen = Oxygen, Temperature, Edit, Verify pH = pH, ORP, mV, Temperature, Edit pH, Edit mV, Verify

For ISM (digital) sensors depending on sensor type, the following choices are available: Conductivity = Conductivity, Resistivity, Verify Amp. Oxygen = Oxygen, Verify Optical Oxygen = Oxygen, Verify pH = pH, ORP, Verify CO2 = CO Ozone = O

2

3

Transmitter M400 PA 38

7.1.2 Finish Calibration

After every successful calibration the following options are available.

After selection the message ”RE-INSTALL SENSOR and Press [ENTER]” appears on the display. Press [ENTER] to return to the measuring mode.

Analog sensors

Adjust: Calibration values are stored in the transmitter and used for the measurement. Additionally, the calibration values are stored in the calibration data.

Calibrate: The function “Calibrate” is not applicable for analog sensors.

Abort: Calibration values are discarded.

ISM (digital) sensors

Adjust: Calibration values are stored in the sensor and used for the measurement. Additionally, the calibration values are stored in the calibration history.

Calibrate: Calibration values are stored in the calibration history for documentation, but not be used for the measurement. The calibration values from the last valid adjustment are further used for the measurement.

Abort: Calibration values are discarded.

Transmitter M400 PA 39

7.2 Conductivity Calibration for Two- or Four-Electrode

Sensors

This feature provides the ability to perform a one-point, two-point or process Conductivity resp. Resistivity “Sensor” calibration for two- or four-electrode sensors. The procedure described below works for both types of calibrations. There is no reason to perform a two-point calibration on a two-electrode conductivity sensor.

NOTE: When performing calibration on a conductivity sensor, results will vary depending on the

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NOTE: For measuring tasks the temperature compensation for the application as defined at the

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methods, calibration apparatus and/or quality of reference standards used to perform the calibration.

menu Resistivity will be considered and not the temperature compensation selected thru the calibration procedure (see also section 8.2.3.1 “Conductivity Temperature Compensation”; PATH: Menu/Configure/Measurement/Resistivity).

Enter Conductivity sensor calibration mode as described in section 7.1 “Enter Calibration Mode”.

The next screen will ask to select the type of temperature compensation mode desired during the calibration process.

Choices are “None”, ”Standard”, “Light 84”, “Std 75 °C”, ”Lin 25°C”, ”Lin 20°C”,

“Glycol.5”, “Glycol1”, “Cation”, “Alcohol” and “Ammonia”.

None does not make any compensation of the measured conductivity value. The uncompensated value will be displayed and proceeded.

Standard compensation includes compensation for non-linear high purity effects as well as conventional neutral salt impurities and conforms to ASTM standards D1125 and D5391.

Light 84 compensation matches the high purity water research results of Dr. T.S. Light published in 1984. Use only if your institution has standardized on that work.

Std 75 °C compensation is the Standard compensation algorithm referenced to 75°C. This compensation may be preferred when measuring Ultrapure Water at an elevated temperature (Resistivity of ultrapure water compensated to 75 °C is 2.4818 Mohm-cm.)

Linear 25 °C compensation adjusts the reading by a coefficient or factor expressed as %/°C (deviation from 25 °C). Use only if the solution has a well-characterized linear temperature coefficient. The factory default setting is 2.0% /°C.

Linear 20 °C compensation adjusts the reading by a coefficient or factor expressed as %/°C (deviation from 20 °C). Use only if the solution has a well-characterized linear temperature coefficient. The factory default setting is 2.0% /°C.

Glycol.5 compensation matches the temperature characteristics of 50% ethylene glycol in water. Compensated measurements using this solution may go above 18 Mohm-cm.

Glycol1 compensation matches the temperature characteristics of 100% ethylene glycol. Compensated measurements may go well above 18Mohm-cm.

Cation compensation is used in power industry applications measuring the sample after a cation exchanger. It takes into account the effects of temperature on the dissociation of pure water in the presence of acids.

Transmitter M400 PA 40

Alcohol compensation provides for the temperature characteristics of a 75% solution of isopropyl alcohol in pure water. Compensated measurements using this solution may go above 18Mohm-cm.

Ammonia compensation is used in power industry applications for specific conductivity measured on samples using ammonia and/or ETA (ethanolamine) water treatment. It takes into account the effects of temperature on the dissociation of pure water in the presence of these bases.

Choose the compensation mode, modify the factor where appropriate and press [ENTER].

7.2.1 One-Point Sensor Calibration

(Display reflects typical Conductivity Sensor calibration)

Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode” and choose one of the compensation modes (see section 7.2 “Conductivity Calibration for Twoor Four-Electrode Sensors”).

Select 1 point calibration and press [ENTER]. With conductivity sensors a one-point calibration

is always performed as a slope calibration.

Place the electrode into the reference solution.

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter and sensor in the units selected by the user. Press [ENTER] when this value is stable to perform the calibration.

After the calibration the cell multiplier or slope calibration factor ”M” i.e. cell constant and the

Adder or offset calibration factor ”A” are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 41

7.2.2 Two-Point Sensor Calibration (only for Four-Electrode

Sensors)

(Display reflects typical Conductivity sensor calibration)

Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode” and choose one of the compensation modes (see section 7.2 “Conductivity Calibration for Twoor Four-Electrode Sensors”).

Select 2 point calibration and press [ENTER].

Place the electrode into the first reference solution.

CAUTION: Rinse sensors with a high-purity water solution between calibration points to prevent contamination of the reference solutions.

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter and sensor in the units selected by the user. Press [ENTER] when this value is stable and place the electrode into the second reference solution.

Enter the value for Point 2 including a decimal point and units. The value in the second text line is the value being measured by the transmitter and sensor in the units selected by the user. Press [ENTER] when this value is stable to perform the calibration.

After the calibration of the cell multiplier or slope calibration factor ”M” i.e. cell constant and the

adder or offset calibration factor ”A” are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.2.3 Process Calibration

(Display reflects typical Conductivity sensor calibration)

Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode” and choose one of the compensation modes (see section 7.2 “Conductivity Calibration for Twoor Four-Electrode Sensors”).

Select Process Calibration and press [ENTER]. With conductivity sensors a process calibration

is always performed as a slope calibration.

Take a sample and press the [ENTER] key again to store the current measuring value.

During the ongoing calibration process, the letter of the channel, which is concerned by the calibration, “A” or “B” is blinking in the display.

After determining the conductivity value of the sample, press the [CAL] key again to proceed with the calibration.

Transmitter M400 PA 42

Enter the conductivity value of the sample, then press the [ENTER] key to start the calculation of

calibration results.

After the calibration the Multiplier or slope calibration factor “M” and the Adder or offset calibra-

tion factor “A” are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.3 Calibration of Amperometric Oxygen Sensors

Oxygen calibration for amperometric sensors is performed as either a one-point or process calibration.

NOTE: Before air calibration, for highest accuracy, enter the barometric pressure and relative hu-

h

midity, as described in section 8.2.3.4 “Parameters for Oxygen Measurement Based on Amperometric Sensors”.

7.3.1 One-Point Calibration for Amperometric Oxygen

Sensors

Enter Oxygen calibration mode as described in section 7.1 “Enter Calibration Mode”.

A one-point calibration of oxygen sensors is always either a one-point slope (i.e. with air) or a zero (offset) calibration. A one-point slope calibration is done in air and a one-point offset calibration is done at 0 ppb oxygen. A one-point zero dissolved oxygen calibration is available but not normally recommended since zero oxygen is very hard to achieve. A zero-point calibration is only recommended if high accuracy at low oxygen level (below 5% air) is needed.

Select 1 point followed by either Slope or ZeroPt as the calibration type.

Press [ENTER].

Adjust calibration pressure (CalPres) and relative humidity (RelativeHumid), which are applied

during calibration. Press [ENTER].

Place the sensor in the calibration gas (e.g. air) resp. solution. Press [ENTER].

Depending on the parameterized Drift control (see section 8.2.3.4 “Parameters for Oxygen Measurement Based on Amperometric Sensors”) one of the two following modes is active.

Transmitter M400 PA 43

7.3.1.1 Auto Mode

NOTE: For a zero point calibration the Auto mode is not available. If Auto mode has been config-

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ured (see section 8.2.3.4 “Parameters for Oxygen Measurement Based on Amperometric Sensors”) and an offset calibration will be executed, the transmitter will perform the calibration in Manual mode.

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter and sensor in the units selected by the user.

As soon as the stabilization criteria have been fulfilled the display changes. The display shows

the calibration result for slope “S” and offset value ”Z”.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.3.1.2 Manual Mode

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter and sensor in the units selected by the user. Press [ENTER] when this value is stable to perform the calibration.

After the calibration the slope “S” and the offset value ”Z” are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

NOTE: With ISM sensors: If a one-point calibration is executed, the transmitter sends the polar-

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ization voltage, valid for the calibration, to the sensor. If the polarization voltage for the measuring mode and calibration mode is different, the transmitter will wait 120 seconds before starting the calibration. In this case the transmitter will also go after the calibration for 120 seconds to the HOLD Mode, before returning to the measuring mode again. (see also section8.2.3.4 “Parameters for Oxygen Measurement Based on Amperometric Sensors”).

Transmitter M400 PA 44

7.3.2 Process Calibration for Amperometric Oxygen

Sensors

Enter Oxygen calibration mode as described in section 7.1 “Enter Calibration Mode”.

A process calibration of oxygen sensors is always either a slope or a offset calibration.

Select Process followed by either Slope or ZeroPt as the calibration type. Press [ENTER]

Take a sample and press the [ENTER] key again to store the current measuring value. To show

the ongoing calibration process, A or B (depending on the channel) is blinking in the display.

After determining the O2 value of the sample press the c key again to proceed with the calibration.

Enter the O2 value of the sample then press the [ENTER] key to start the calculation of the

calibration results.

After the calibration the slope ”S” and the offset value ”Z” are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 45

7.4 Calibration of Optical Oxygen Sensors (only for ISM

Sensors)

Oxygen calibration for optical sensors can be performed as a two-point, process or, depending on the sensor model connected to the transmitter, also as a one-point calibration.

7.4.1 One-Point Calibration for Optical Oxygen Sensors

Typically a one-point calibration is done in air. Nevertheless other calibration gases and solutions are possible.

The calibration of an optical sensor is always a calibration of the phase of the fluorescence signal towards the internal reference. During a one-point calibration the phase in this point is measured and extrapolated over the measuring range.

Enter O2 opt calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 1 point as the calibration type. Press [ENTER].

Place the sensor in the calibration gas (e.g. air) resp. solution.

Adjust calibration pressure (CalPres) and relative humidity (RelativeHumid), which are applied

during calibration. Press [ENTER].

Place the sensor in the calibration gas (e.g. air) resp. solution. Press [ENTER].

Depending on the parameterized Drift control (see section 8.2.3.5 “Parameters for Oxygen Measurement Based on Optical Sensors”) one of the two following modes is active.

7.4.1.1 Auto mode

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor in the units selected by the user.

As soon as the stabilization criteria have been fulfilled the display changes.

The display shows now the values for the phase of the sensor at 100% air (P100) and at 0% (P0) air.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 46

7.4.1.2 Manual Mode

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor in the units selected by the user.

Press [ENTER] to proceed.

The display shows now the values for the phase of the sensor at 100% air (P100) and at 0%

(P0) air.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.4.2 Two-Point Sensor Calibration

The calibration of an optical sensor is always a calibration of the phase of the fluorescence signal towards the internal reference. A two-point calibration is a combination of first a calibration in air (100%) where a new phase P100 is measured and then a calibration in nitrogen (0%) where a new phase P0 is measured. This calibration routine gives the most accurate calibration curve over the whole measuring range.

Enter O2 opt calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 2 point as the calibration type. Press [ENTER].

Adjust calibration pressure (CalPres) and relative humidity (RelativeHumid), which are applied

during calibration. Press [ENTER].

Place the sensor in the first calibration gas (e.g. air) resp. solution. Press [ENTER].

Depending on the parameterized Drift control (see section 8.2.3.5 “Parameters for Oxygen Measurement Based on Optical Sensors”) one of the two following modes is active.

Transmitter M400 PA 47

7.4.2.1 Auto Mode

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor in the units selected by the user.

As soon as the stabilisation criteria have been fulfilled, the display changes and prompts you to

change the gas.

Place the senor in the second calibration gas and press the [ENTER] key to go on with the calibration.

Enter the value for Point 2 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor.

As soon as the stabilization criteria have been fulfilled the display changes. The display shows

now the values for the phase of the sensor at 100% air (P100) and at 0% (P0) air.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.4.2.2 Manual Mode

Enter the value for Point 1 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor in the units selected by the user.

Press [ENTER] to proceed.

The display changes and prompts you to change the gas.

Place the senor in the second calibration gas and press the [ENTER] key to go on with the calibration.

Enter the value for Point 2 including a decimal point and units. The value in the second text line

is the value being measured by the transmitter resp. sensor.

Press [ENTER] to proceed.

The display shows now the values for the phase of the sensor at 100% air (P100) and at 0%

(P0) air.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 48

7.4.3 Process Calibration

The calibration of an optical sensor is always a calibration of the phase of the fluorescence signal towards the internal reference. During a process calibration the phase in this point is measured and extrapolated over the measuring range.

Enter O2 opt calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 1 point as the calibration type. Press [ENTER].

Take a sample and press the [ENTER] key again to store the current measuring value. To show

the ongoing calibration process, A or B (depending on the channel) is blinking in the display.

After determining the O2 value of the sample press the [CAL] key again to proceed with the calibration.

Enter the O2 value of the sample then press the [ENTER] key to start calibration.

The display shows now the values for the phase of the sensor at 100% air (P100) and at 0%

(P0) air.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 49

7.5 pH Calibration

For pH sensors, the M400 transmitter features one-point, two-point (Auto or Manual mode) or process calibration with 9 preset buffer sets or manual buffer entry. Buffer values refer to 25 °C. To calibrate the instrument with automatic buffer recognition, you need a standard pH buffer solution that matches one of these values. (See section 8.2.3.3 “pH / ORP Parameters” for configuring modes and selecting buffer sets.) Please select the correct buffer table before using automatic calibration (see section 19 “Buffer tables”).

NOTE: For dual membrane pH electrodes (pH/pNa) only buffer Na+ 3.9M (see section 19.2.1

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“Mettler-pH/pNa buffers (Na+ 3.9M)”) is available.

7.5.1 One-Point Calibration

Enter pH calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 1 point Calibration. With pH sensors a one-point calibration is always performed as a

offset calibration.

Depending on the parameterized Drift control (see section 8.2.3.3 “pH / ORP Parameters”) one of the two following modes is active.

7.5.1.1 Auto Mode

Place the electrode in the buffer solution and press the [ENTER] key to start the calibration.

The display shows the buffer the transmitter has recognized (Point 1) and the measured value.

As soon as the stabilisation criteria have been fulfilled the display changes. The display shows

now the slope calibration factor S and the offset calibration factor Z.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 50

7.5.1.2 Manual Mode

Place the electrode in the buffer solution. The display shows the buffer the transmitter has recog-

nized (Point 1) and the measured value. Press [ENTER] to proceed.

The display shows now the slope calibration factor S and the offset calibration factor Z.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.5.2 Two-Point Calibration

Enter pH calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 2 Point calibration.

Depending on the parameterized Drift control (see section 8.2.3.3 “pH / ORP Parameters”) one of the two following modes is active.

7.5.2.1 Auto Mode

Place the electrode in the first buffer solution and then press the [ENTER] key.

The display shows the buffer the transmitter has recognized (Point 1) and the measured value.

As soon as the stabilisation criteria have been fulfilled stabilisation criteria have been fulfilled,

the display changes and prompts you to place the electrode in the second buffer.

Place the electrode in the second buffer solution and press the [ENTER] key to go on with the calibration.

Transmitter M400 PA 51

The display shows the second buffer the transmitter has recognized (Point 2) and the measured

value.

As soon as the stabilisation criteria have been fulfilled the display changes to show the slope

calibration factor S and the offset calibration factor Z.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.5.2.2 Manual Mode

Place the electrode in the first buffer solution. The display shows the buffer the transmitter has

recognized (Point 1) and the measured value. Press [ENTER] to proceed.

Place the transmitter in the second buffer solution. The display shows the buffer the transmitter

has recognized (Point 2) and the measured value. Press [ENTER] to proceed.

The display shows the slope calibration factor S and the offset calibration factor Z.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.5.3 Process Calibration

Enter pH calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select Process calibration. With pH sensors a process calibration is always performed as a

offset calibration.

Transmitter M400 PA 52

Take a sample and press the [ENTER] key again to store the current measuring Value. To show

the ongoing calibration process, A or B (depending on the channel) is blinking in the display.

After determining the pH value of the sample, press the [CAL] key again to proceed with the

calibration.

Enter the pH value of the sample then press the [ENTER] key to start the calculation of the

calibration results.

After the calibration the slope calibration factor S and the offset calibration factor Z are displayed.

For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration. For Analog sensors select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.5.4 mV Calibration (only for Analog Sensors)

Enter mV calibration mode as described in section 7.1 “Enter Calibration Mode”.

The user can now enter Point 1. The offset calibration factor is calculated by using the value of

Point1 instead of the measured value (line 4, mV = ....) and displayed on the next screen.

Z is the newly calculated offset calibration factor. The slope calibration factor S is always 1 and

does not enter the calculation.

Select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 53

7.5.5 ORP Calibration (only for ISM Sensors)

In case that an pH sensor with solution ground based on ISM technology is connected to the M400, the transmitter gives the option to make in addition to the pH calibration an ORP calibration.

NOTE: In case of choosing ORP calibration the parameters defined for pH (see section 8.2.3.3

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“pH / ORP Parameters”, PATH: Menu/Configure/Measurement/pH) will not be considered.

Enter ORP calibration mode as described in section 7.1 “Enter Calibration Mode”.

The user can now enter Point 1. In addition the actual ORP is displayed.

Press [ENTER] to proceed.

The display shows the slope calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.6 Carbon Dioxide Calibration (only for ISM Sensors)

For dissolved carbon dioxide (CO2) sensors, the M400 transmitter features one-point, two-point (Auto or Manual mode) or process calibration. For the one-point or two-point calibration the solution with pH = 7.00 and/or pH = 9.21 of the Mettler – 9 standard buffer can be used (see also section 8.2.3.8 “Dissolved carbon dioxide parameters”) or the buffer value can be entered manually.

For thermal conductivity CO2 (CO

Hi), please consult the Sensor Manual (InPro 5500 i).

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7.6.1 One-Point Calibration

Enter CO2 calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 1 point Calibration. With CO2 sensors a one-point calibration is always performed as a

offset calibration.

Depending on the parameterized Drift control (see section 8.2.3.8 “Dissolved Carbon Dioxide Parameters”) one of the two following modes is active.

Transmitter M400 PA 54

7.6.1.1 Auto Mode

Place the electrode in the buffer solution and press the [ENTER] key to start the calibration.

The display shows the buffer the transmitter has recognized (Point 1) and the measured value.

As soon as the stabilisation criteria have been fulfilled the display changes to show the slope

calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.6.1.2 Manual Mode

Place the electrode in the buffer solution. The display shows the buffer the transmitter has recog-

nized (Point 1) and the measured value. Press [ENTER] to proceed.

The display shows now the slope calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.6.2 Two-Point Calibration

Enter CO2 calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 2 Point calibration.

Depending on the parameterized Drift control (see section 8.2.3.8 “Dissolved carbon dioxide parameters) one of the two following modes is active.

Transmitter M400 PA 55

7.6.2.1 Auto Mode

Place the electrode in the first buffer solution and press the [ENTER] key to start the calibration.

The display shows the buffer the transmitter has recognized (Point 1) and the measured value.

As soon as the stabilisation criteria have been fulfilled, the display changes and prompts you to

place the electrode in the second buffer.

Place the electrode in the second buffer solution and press the [ENTER] key to go on with the calibration.

The display shows the second buffer the transmitter has recognized (Point 2) and the measured

value.

As soon as the stabilisation criteria have been fulfilled, the display changes to show the slope

calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.6.2.2 Manual Mode

Place the electrode in the first buffer solution. The display shows the buffer the transmitter has

recognized (Point 1) and the measured value. Press [ENTER] to proceed.

Place the electrode in the second buffer solution. The display shows the buffer the transmitter

has recognized (Point 2) and the measured value. Press [ENTER] to proceed.

The display shows the slope calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 56

7.6.3 Process Calibration

Enter CO2 calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select Process calibration. With CO2 sensors a process calibration is always performed as a off-

set calibration.

Take a sample and press the [ENTER] key again to store the current measuring value. To show

the ongoing calibration process, A or B (depending on the channel) is blinking in the display. After determining the CO2 value of the sample, press the c key again to proceed with the calibration.

Enter the CO2 value of the sample then press the [ENTER] key to start calibration.

The display shows the slope calibration factor S and the offset calibration factor Z.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.7 Calibration of Ozone Sensors (only ISM Sensors)

For ozone sensors, the M400 transmitter features one-point zero point or process calibration.

7.7.1 One-Point ZeroPt Calibration for Ozone Sensors

Enter Ozone calibration mode as described in section 7.1 “Enter Calibration Mode”.

Select 1 point ZeroPt as the calibration type.

Press [ENTER].

Transmitter M400 PA 57

Enter the value for Point 1 including a decimal point. Ozone is the value being measured by the

transmitter and sensor in the units set by the user. Press [ENTER] when this value is stable to perform the calibration.

As soon as the stabilization criteria have been fulfilled the display changes. The display shows

the calibration result for slope “S” and offset value ”Z”.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.7.2 Process Calibration for Ozone Sensors

Enter Ozone calibration mode as described in section 7.1 “Enter Calibration Mode”.

An ozone sensor Process calibration is either a Slope or Zero Pt calibration. The Slope calibration is always obtained from a comparison instrument or colorimetric test kit. The Zero Pt calibration is done in air or in ozone-free water.

Select Process followed by either Slope or ZeroPt as the calibration type. Press [ENTER]

Take a sample and press the [ENTER] key again to store the current measuring value.

After determining the O3 value of the sample press the c key again to proceed with the calibration.

Enter the O3 value of the sample. Press the [ENTER] key to start the calculation of the calibration

results.

After the calibration the slope ”S” and the offset value ”Z” are displayed.

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

Transmitter M400 PA 58

7.8 Sensor Temperature Calibration (only for Analog

Sensors)

Enter Sensor calibration mode as described in section 7.1 “Enter Calibration Mode” and select

Temperature.

7.8.1 One-Point Sensor Temperature Calibration

Select 1 Point calibration. Slope or Offset can be selected with the 1 Point calibration. Select

Slope to recalculate the Slope factor M (Multiplier) or Offset to recalculate the offset calibration factor A (Adder).

Note: Due to non-linearity the 1 Point Slope temperature calibration is not implemented for the

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NTC22K as temperature source.

Enter the value for Point 1 and press [ENTER].

Select ADJUST or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.8.2 Two-Point Sensor Temperature Calibration

Note: Due to non-linearity the 2 Point temperature calibration is not implemented for the

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NTC22K as temperature source.

Select 2 Point as calibration type.

Enter the value for Point 1 and press [ENTER].

Transmitter M400 PA 59

Enter the value for Point 2 and press [ENTER].

Select ADJUST, CALIBRATE or ABORT to finish calibration. See „7.1.2 Finish Calibration“.

7.9 Edit Sensor Calibration Constants (only for Analog

Sensors)

Enter Calibration mode as described in section 7.1 “Enter Calibration Mode” and select Edit,

EditpH, Edit mV.

All calibration constants for the selected sensor channel are displayed. Primary measurement

constants (p) are displayed on Line 3. Secondary measurement (temperature) constants (s) for the sensor are displayed on Line 4.

The calibration constants can be changed in this menu.

Select “Yes2 to save the new calibration values and the successful calibration is confirmed on

the display.

NOTE: Each time a new analog conductivity sensor is connected to the M400 transmitter, it is

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necessary to enter the unique calibration data (cell constant and offset) located on the sensor label.

7.10 Sensor Verication

Enter Calibration mode as described in section 7.1 “Enter Calibration Mode” and select “Verify”.

The measured signal of the primary and the secondary measurement in electrical units are

shown. The meter calibration factors are used when calculating these values.

Press [ENTER] to exit from this display.

Transmitter M400 PA 60

8 Conguration

(PATH: Menu / Configure)

Conﬁgure

Measurement

Alarm/Clean ISM Setup* Display Hold Outputs

* Only available in combination with ISM sensors

8.1 Enter Conguration Mode

While in Measurement mode, press the  key. Press the  or . key to navigate to the Configure – menu and press [ENTER].

8.2 Measurement

(PATH: Menu / Configure / Measurement)

Enter configuration mode as described in section 8.1 “Enter Configuration Mode”.

Press the [ENTER] key to select this menu. The following sub menus can now be selected: Channel Setup, Temperature Source, Resitivity / Comp / pH / O2 / CO2, Concentration Table and Set Averaging.

8.2.1 Channel Setup

(PATH: Menu / Configure / Measurement / Channel Setup)

Press the [ENTER] key to select the ”Channel Setup” menu.

Depending on the connected sensor (analog or ISM) the channel can be chosen.

Transmitter M400 PA 61

8.2.1.1 Analog Sensor

Select sensor type Analog and press [ENTER].

Available measurement types are (depends on transmitter type):

Measurement parameter Transmitter

pH / ORP = pH or ORP M400 PA Cond (2) = 2 electrode conductivity M400 PA Cond (4) = 4 electrode conductivity M400 PA O2 hi = Dissolved oxygen (ppm) or oxygen in gas M400 PA O2 lo = Dissolved oxygen (ppb) or oxygen in gas M400 PA O2 Trace = Dissolved oxygen (trace) or oxygen in gas M400 PA

The 4 lines of the display can now be configured with sensor channel ”A” for each line of the display as well as measurements and unit multipliers. Pressing the [ENTER] key will display the selection for lines a, b, c and d.

8.2.1.2 ISM Sensor

Select sensor type ISM and press [ENTER].

If an ISM sensor is connected, the transmitter automatically (Parameter = Auto) recognizes the type of sensor. You can also fix the transmitter to a certain measurement parameter ( Parameter=pH / ORP, pH / pNa, Cond(4), O2 hi, O2 lo, O2 Trace, ppm O2G, O2 Opt, CO2 (low)), depending on the type of transmitter you have.

Measurement parameter Transmitter

pH / ORP = pH and ORP M400 PA pH/pNa = pH and ORP (with pH/pNa electrode) M400 PA Cond (4) = 4 electrode conductivity M400 PA O2 hi = Dissolved oxygen (ppm) or oxygen in gas M400 PA O2 lo = Dissolved oxygen (ppb) or oxygen in gas M400 PA O2 Trace = Dissolved oxygen (trace) or oxygen in gas M400 PA O2 Opt = Dissolved oxygen optical M400 PA Ozone M400 PA CO2 hi = Thermal cunductivity CO2 (InPro 5500i) M400 PA

The 4 lines of the display can now be configured with sensor channel ”B” for each line of the display as well as measurements and unit multipliers. Pressing the [ENTER] key will display the selection for lines a, b, c and d.

NOTE: Beside the measurement values pH, O2, T, etc. also the ISM values DLI, TTM and ACT can

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be assigned to the different lines and linked to the Analog Input Block of the PROFIBUS PA interface. For more information see documentation “PROFIBUS PA parameter Multi-parameter Transmitter M400 PA” on the website “http://www.mt.com/m400-2wire”.

Transmitter M400 PA 62

8.2.1.3 Save Changes of the Channel Setup

After the procedure of the channel setup described in the previous section pressing the [ENTER]

key again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.2 Temperature Source (only for Analog Sensors)

(PATH: Menu/Configure/Measurement/Temperature Source)

Enter Measurement as described in section 8.2 “Measurement”. Select Temperature Source by

using the  or . key and press [ENTER].

The following options can be chosen:

Auto: The transmitter automatically recognizes the temperature source. Use NTC22K: Input will be taken from the sensor attached. Use Pt1000: Temperature input will be taken from the sensor attached. Use Pt1 00: Input will be taken from the sensor attached. Fixed = 25 °C: Allows a specific temperature value to be entered. It must be chosen when

customer use pH sensor without temperature source.

NOTE: If temperature source is set to Fixed, the temperature applied during one-point and/or two-

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point calibration of pH electrodes can be adjusted within the corresponding calibration procedure. After the calibration the fixed temperature defined in this configuration menu is valid again.

Pressing the [ENTER] key will bring up the Save Changes dialog.

Selecting No will discard the entered values and return to the measurement display screen, se-

lecting Yes will save changes made.

Transmitter M400 PA 63

8.2.3 Parameter Related Settings

(PATH: Menu/Configure/Measurement/pH, O2, O2 optical, O2 opt sampling rate, LED Mode or Resistivity, Concentration Table or CO2)

Additional measurement and calibration parameters can be set for each parameter; conductivity, pH, O2 and CO2.

NOTE: Use pH menu for settings of pH/pNa sensors.

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Enter Configuration Mode as described in section 8.1 “Enter Configuration Mode” and select the menu Measurement (see section 8.2 “Measurement”).

Depending on the connected sensor, the menu pH, O2, CO2 can be selected by using the  or

. key. Press [ENTER]

For more details, please see the following explanations depending on the selected parameter.

8.2.3.1 Conductivity Temperature Compensation

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter conductivity has been chosen or an four-electrode conductivity sensor based on ISM technology is connected to the transmitter, the temperature compensation mode can be selected. Temperature compensation should be matched to the characteristics of the application. The transmitter considers this value for the temperature compensation by calculating and displaying the result for the measured conductivity.

NOTE: For calibration purposes the temperature compensation as defined at the menu “Cal/Com-

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pensation” for the buffers resp. samples will be considered (see also section 7.2 “Conductivity Calibration for Two- or Four-Electrode Sensors” resp.)

For doing this adjustment the menu “Resistivity”, that will be displayed, has to be chosen (see section 8.2.3 “Parameter Related Settings”).

The first two measurement lines are displayed on the screen. This section described the procedure for the first measurement line. By using the key c the second line will be chosen. To select the 3rd and 4th line press [ENTER]. The procedure itself works at every measurement line in the same way.

Choices are “None”, ”Standard”, “Light 84”, “Std 75 °C”, ”Lin 25°C”, ”Lin 20°C”, “Glycol.5”, “Glycol1”, “Cation”, “Alcohol” and “Ammonia”.

Standard compensation includes compensation for non-linear high purity effects as well as

conventional neutral salt impurities and conforms to ASTM standards D1125 and D5391.

None does not make any compensation of the measured conductivity value. The uncompensated value will be displayed and proceeded.

Light 84 compensation matches the high purity water research results of Dr. T.S. Light published in 1984. Use only if your institution has standardized on that work.

Transmitter M400 PA 64

Std 75 °C compensation is the Standard compensation algorithm referenced to 75°C. This compensation may be preferred when measuring Ultrapure Water at an elevated temperature (Resistivity of ultrapure water compensated to 75 °C is 2.4818 Mohm-cm.)

Glycol.5 compensation matches the temperature characteristics of 50% ethylene glycol in water. Compensated measurements using this solution may go above 18 Mohm-cm.

Glycol1 compensation matches the temperature characteristics of 100% ethylene glycol. Compensated measurements may go well above 18Mohm-cm.

Cation compensation is used in power industry applications measuring the sample after a cation exchanger. It takes into account the effects of temperature on the dissociation of pure water in the presence of acids.

Alcohol compensation provides for the temperature characteristics of a 75% solution of isopropyl alcohol in pure water. Compensated measurements using this solution may go above 18Mohm-cm.

Ammonia compensation is used in power industry applications for specific conductivity measured on samples using ammonia and/or ETA (ethanolamine) water treatment. It takes into account the effects of temperature on the dissociation of pure water in the presence of these bases.

Linear 25 °C compensation adjusts the reading by a coefficient or factor expressed as %/°C

(deviation from 25 °C). Use only if the solution has a well-characterized linear temperature coefficient.

The factory default setting is 2.0% /°C.

Linear 20 °C compensation adjusts the reading by a coefficient or factor expressed as %/°C

(deviation from 20 °C). Use only if the solution has a well-characterized linear temperature coefficient.

The factory default setting is 2.0% /°C.

If compensation mode ”Lin 25 °C” or ”Lin 20 °C” has been chosen, the factor for the adjustment

of the reading can be modified after pressing [ENTER] (If working at measurement line 1 or 2 press [ENTER] twice).

Adjust the factor for temperature compensation.

Pressing [ENTER] will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.3.2 Concentration Table

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter conductivity has been chosen or an four-electrode conductivity sensor based on ISM technology is connected to the transmitter, a concentration table can be defined.

To specify customers-specific solutions, up to 5 concentration values can be edited in a matrix together with up to 5 temperatures. To do so the desired values are edited under the concentration table menu. Furthermore the conductivity values for the according temperature and concentration values are edited.

For doing the settings the menu “Concentration Table”, that will be displayed, has to be chosen. (see section 8.2.3 “Parameter Related Settings”).

Transmitter M400 PA 65

Define the desired unit.

Press [ENTER]

NOTE: Refer to section 8.2.1 “Channel Setup” to choose the unit used in the display.

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Enter the amount of desired temperature points (Temp Point) and Concentration Points.

Press [ENTER]

Enter the values for the different concentrations (ConcentrationX).

Press [ENTER]

Enter the value of the 1st temperature (Temp1) and the value for the conductivity which belongs

to the first concentration at this temperature.

Press [ENTER]

Enter the value for the conductivity which belongs to the second concentration at the first temperature and press [ENTER] etc..

After entering all conductivity values, that belong to the different concentrations at the first temperature point, enter in the same way the value of the 2nd temperature point (Temp2) and the conductivity value which belongs at the second temperature to the first concentration. Press [ENTER] and go on in the same way for the next concentration points as described for the first temperature point.

Enter in this way the values at every temperature point. After entering the last value, pressing [ENTER] again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

NOTE: The values for the temperature have to increase from Temp1 to Temp2 to Temp3 etc.. The

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NOTE: The conductivity values at the different temperatures have to increase or decrease from

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values for the concentration have to increase from Concentration1 to Concentration2 to Concentration3 etc.

Concentration1 to Concentration2 to Concentration3 etc.. Maxima and/or minima are not permitted. If the conductivity values at Temp1 are increasing with the different concentrations, they have to increase also at the other temperatures. If the conductivity values at Temp1 are decreasing with the different concentrations, they have to decrease also at the other temperatures.

Transmitter M400 PA 66

8.2.3.3 pH / ORP Parameters

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter pH/ORP has been chosen or an pH sensor based on ISM technology is connected to the transmitter, the parameters drift control, buffer recognition, STC, I P, fixed Calibration temperature and the displayed units for slope and zero point can be set resp. adjusted.

For doing this adjustments resp. settings the menu “pH”, that will be displayed, has to be chosen. (see section 8.2.3 “Parameter Related Settings”).

Select the drift control for calibration as Auto (drift and time criteria have to be fulfilled) or man-

ual (The user can decide when a signal is stable enough to complete calibration) followed by the relevant buffer table for the automatic buffer recognition. If the drift rate is less than 0.4 mV over a 19 second interval then the reading is stable and the calibration is done using the last reading. If the drift criteria is not met within 300 seconds then the calibration times out and the message ”Calibration Not Done” Press ENTER Enter to ”Exit” is displayed.

Press [ENTER]

For automatic buffer recognition during calibration, select the buffer solution set that will be used:

Mettler-9, Mettler-10, NIST Tech, NIST Std = JIS Std, HACH, CIBA, MERCK, WTW, JIS Z 8802 or None. See section 19 “Buffer tables” for buffer values. If the auto buffer feature will not be used or if the available buffers are different from those above, select None. Press [ENTER].

NOTE: For dual membrane pH electrodes (pH/pNa) only buffer Na+ 3.9M (see section 19.2.1

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“Mettler-pH/pNa buffers (Na+ 3.9M)”) is available.

STC is the solution temperature coefficient in units of pH / °C referenced to 25 °C (Default =

0.000 for most applications). For pure waters, a setting of 0.016 pH / °C should be used. For low conductivity power plant samples near 9 pH, a setting of 0.033 pH / °C should be used. These positive coefficients compensate for the negative temperature influence on the pH of these samples. Press [ENTER].

IP is the isothermal point value (Default = 7.000 for most applications). For specific compensa-

tion requirements or non standard inner buffer value, this value can be changed. Press [ENTER].

STC RefTemp sets the temperature to which solution temperature compensation is referenced.

The displayed value and the output signal is referenced to STC RefTemp. Selecting ”No” means solution temperature compensation is not used. The most common reference temperature is 25°C. Press [ENTER].

The units for the slope and the zero point, that will be shown on the display can be chosen. The

default setting for the unit of the slope is [%] and can be changed to [pH/mV]. For the zero point the default setting of the unit is [pH] and can be changed to [mV]. Use the c key to move to the input field and select the unit by using the  or . key.

Pressing [ENTER] again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

Transmitter M400 PA 67

8.2.3.4 Parameters for Oxygen Measurement Based on

Amperometric Sensors

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter O2 hi, O2 lo or O2 Trace has been chosen or an oxygen sensor based on ISM technology is connected to the transmitter, the parameters calibration pressure, process pressure, ProCalPres, salinity and relative humidity can be set resp. adjusted. If an ISM sensor is connected, there is furthermore the option to adjust the parameterization voltage.

For doing this adjustments resp. settings the menu “O2”, that will be displayed, has to be chosen. (see section 8.2.3 “Parameter Related Settings”)

Enter the Calibration pressure in line 3. The default value for CalPres is 759.8 and the default

unit is mmHg.

Select Edit in line 4 for entering the applied process pressure manually. Select Ain if an analog input signal is used for the applied process pressure. Select PA if the pressure compensation value is supplied via PA. Press [ENTER]

If Edit has been chosen an input field for entering the value manually is displayed. In case that

Ain has been selected the start value (4mA) and the end value (20 mA) of the range for the 4 to 20 mA input signal have to be entered.

Press [ENTER]

For the algorithm of the process calibration the applied pressure (ProcCalPres) has to be de-

fined. The value of the process pressure (ProcPres) or the calibration pressure (CalPres) can be used. Chose the pressure, that applies during the process calibration, resp. should be used for the algorithm.

Select the required Drift Control of the measuring signal during the calibration procedure. Choose Manual if the user will decide when a signal is stable enough to complete the calibration. Select Auto and an automatic stability control of the sensor signal during calibration through the transmitter will be done. Press [ENTER]

In the next step the salinity of the measured solution can be modified.

In addition the relative humidity of the calibration gas can also be entered. The allowed values for relative humidity are in the range 0% to 100%. When no humidity measurement is available, use 50% (default value).

Press [ENTER]

If an ISM sensor has been connected resp. configured there is furthermore the option to adjust

the polarization voltage for the sensor. Different value can be entered for the measuring mode (Umeaspol) and for the calibration mode (Ucalpol). For entered values 0 mV to –550 mV the connected sensor will be set to a polarization voltage of –500mV. If the entered value is less then –550mV, the connected sensor will set to a polarization voltage of –674mV.

NOTE: During a process calibration, the polarization voltage Umeaspol, defined for the measur-

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NOTE: If a one-point calibration is executed, the transmitter sends the polarization voltage, valid

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ing mode, will be used.

for the calibration, to the sensor. If the polarization voltage for the measuring mode and calibration mode is different, the transmitter will wait 120 seconds before starting the calibration. In this case the transmitter will also go after the calibration for 120 seconds to the HOLD Mode, before returning to the measuring mode again.

Transmitter M400 PA 68

Press [ENTER]

The display shows the Save Changes dialog. Selecting No will discard the entered values and

return to the measurement display screen, selecting Yes will save changes made.

8.2.3.5 Parameters for Oxygen Measurement Based on

Optical Sensors

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter O2 Opt has been chosen, the parameters calibration pressure, process pressure, ProCalPres, salinity, drift control and relative humidity can be set resp. adjusted.

For doing these adjustments the menu “O2 optical”, that will be displayed, has to be chosen. (see section 8.2.3 “Parameter Related Settings”)

Press [ENTER]

Enter the calibration pressure (line 3). The default value for CalPres is 759.8 and the default unit

is mmHg.

Select Edit in line 4 for entering the applied process pressure manually. Select Ain if an analog input signal is used for the applied process pressure. Press [ENTER]

If Edit has been chosen an input field for entering the value manually is displayed. In case that

Ain has been selected the start value (4 mA) and the end value (20 mA) of the range for the 4 to 20 mA input signal have to be entered.

Press [ENTER]

NOTE: Refer to section 4.3.6 “TB2 – Optical Oxygen, CO2hi ISM (Digital) Sensors”.

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For the algorithm of the process calibration the applied pressure (ProcCalPres) has to be de-

fined. The value of the process pressure (ProcPres) or the calibration pressure (CalPres) can be used. Chose the pressure, that applies during the process calibration, resp. should be used for the algorithm.

Select the drift control for calibration as Auto (drift and time criteria have to be fulfilled) or manual (The user can decide when a signal is stable enough to complete calibration). If Auto is selected, the drift is checked by the sensor. If the drift criteria is not met within a defined time (depending on the sensor model) the calibration times out and the message ”Calibration Not Done” Press ENTER Enter to ”Exit” is displayed.

Press [ENTER]

In the next step the salinity of the measured solution can be modified.

In addition the relative humidity of the calibration gas can also be entered. The allowed values for relative humidity are in the range 0% to 100%. When no humidity measurement is available, use 50% (default value).

Press [ENTER]

Transmitter M400 PA 69

Select through the parameter ProcCal between Scaling and Calibration for process calibration. If

Scaling has been chosen, the calibration curve of the sensor will be untouched, but the output signal of the sensor will be scaled. In case of calibration value <1%, the offset of the sensor output signal will be modified during scaling, for value >1% the slope of the sensor output will be adjusted. For further information about scaling refer to the sensor manual.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.3.6 Adjusting Sampling Rate for Optical Sensors

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter O2 Opt has been chosen the parameter O2 opt sampling rate can be adjusted.

For doing this adjustment the menu “O2 opt sampling rate” has to be chosen (see section 8.2.3 “Parameter Related Settings”).

The time interval from one measuring cycle of the sensor to the other can be adjusted i.e. adapt-

ed to the application. A higher value will increase the life time of the OptoCap of the sensor.

Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.3.7 LED Mode

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter O2 Opt has been chosen the parameters LED, T off, DI 1 LED control can be set resp. adjusted.

For doing these adjustments the menu “LED Mode” has to be chosen (see section 8.2.3 “Parameter Related Settings”).

The operation mode for the LED of the sensor can be selected. There are the following options.

Off: LED is permanently switched off. On: LED is permanently switched on. Auto: The LED is switched on as long as the measured media temperature is smaller then

Toff (see next value) or switched off thru the digital input signal (see over next value).

NOTE: If the LED is switched off, no oxygen measurement is performed.

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Press [ENTER]

Depending on the measured media temperature the LED of the sensor can be automatically

switched off. If the media temperature is higher then Toff, the LED will switched off. The LED will be switched on as soon as the media temperature falls below Toff - 3K. This function give the option to increase the lifetime of the OptoCap by switching off the LED thru SIP or CIP cycles.

NOTE: This function is only active if the operation mode of the LED is set to “Auto”.

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Press [ENTER]

Transmitter M400 PA 70

The operation mode of the sensor LED can also be influenced by the digital input signal DI1 of

the transmitter. If the parameter “DI 1 LED control” is set to Yes, the LED is switched off, if DI1 is active. If “DI 1 LED control” is set to No, the signal of DI1 has now influence on the operation mode of the sensor LED.

This function is helpful for remote control of the sensor thru a SPS or DCS.

NOTE: This function is only active if the operation mode of the LED is set to “Auto”.

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Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.3.8 Dissolved Carbon Dioxide Parameters

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter CO2 has been chosen, the parameters drift control, salinity, HCO3, TotPres and the displayed units for slope and zero point can be set resp. adjusted.

For doing this adjustment resp. settings the menu “CO2”, that will be displayed, has to be chosen. (see section 8.2.3 “Parameter Related Settings”)

Select Drift Control for calibration as Auto (drift and time criteria have to be fulfilled) or manual

(the user can decide when a signal is stable enough to complete calibration) followed by the relevant buffer table for the automatic buffer recognition. If the drift rate is less than 0.4 mV over a 19 second interval then the reading is stable and the calibration is done using the last reading. If the drift criteria is not met within 300 seconds then the calibration times out and the message ”Calibration Not Done Press ENTER to Exit” is displayed.

For automatic buffer recognition during calibration, select the buffer Mettler-9. Use for calibration purposes solution with pH = 7.00 and/or pH = 9.21. If the auto buffer feature will not be used or if the available buffers are different from those above, select None. Press [ENTER] to go on.

The Salinity describes the total amount of solved salts in the CO2 electrolyte of the sensor con-

nected to the transmitter. It is a sensor specific parameter. The default value (28.00 g/L) is valid for the InPro 5000. Do not change this parameter if the InPro 5000 will be used.

The parameter HCO3 describes the concentration of hydrogen carbonate in the CO2 electrolyte of the sensor connected to the transmitter. It is also a sensor specific parameter. The default value

0.050 Mol/L is valid for the InPro 5000. Do not change this parameter if the InPro 5000 will be used.

To go on press [ENTER] again.

If the unit for the measured dissolved carbon dioxide is %sat, the pressure during the calibration

resp. measurement has to be considered. This will be done by setting the parameter TotPres. If another unit then %sat has been selected, the result will not be influenced by this parameter.

The units for the slope and the zero point, that will be shown on the display can be chosen. The

default setting for the unit of the slope is [%] and can be changed to [pH/mV]. For the zero point the default setting of the unit is [pH] and can be changed to [mV]. Use the c key to move to the input field and select the unit by using the  or . key.

Transmitter M400 PA 71

Pressing [ENTER] again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.2.3.9 Thermal condcutivity dissolved carbon dioxide

parameters

If during the channel setup (see section 8.2.1 “Channel Setup”) the parameter CO2 Hi has been chosen, the parameters drift control, CO2 solubility, temperature factor can be set resp. adjusted.

Select Drift Control for calibration as auto (calibration is completed automatically based on

meeting drift and time criteria) or manual (the user decides when the CO2 signal is stable enough to complete a calibration).

The sensor is delivered factory calibrated and is set up to measure in beer as the default.

The sensor offers a choice of CO2 solubility for measurement in beer or water. For other beverages the user has the possibility to enter individual values for CO2 solubility and temperature factor.

Default values for measurement in beer (Valid for temperatures – 5 … 50 °C): CO2 solubility (A): 1.420 g/L Temp. factor (B): 2485

Values for pure water: CO2 solubility (A): 1.471 g/L Temp. factor (B): 2491

Values for coke: CO2 solubility (A): 1.345 g/L Temp. factor (B): 2370

For beverages where the user knows the exact CO2 solubility and the temperature factor the

values can be changed individually. If the user desires to evaluate the solubility and temperature factors they can be evaluated with the following formulas.

HCO2 = A * exp (B * (1 / T – 1 / 298.15) cCO2 = HCO2 * pCO

2

HCO2 : Calculated CO2 Solubility (Henry constant) at measured process temp.

A: Solubility of CO2 (g / L at 25 °C) B: Temperature factor (valid for – 5 … 50 °C) cCO2: Calculated CO2 concentration

Transmitter M400 PA 72

8.2.4 Set Averaging

Enter Configuration Mode as described in section 8.1 ”Enter Configuration mode” and select the menu Measurement (see section 8.2 ”Configuration/Measurement”).

Selected the menu “Set Averaging” by using the  or . key. Press [ENTER]

The averaging method (noise filter) for each measurement line can now be selected. The options are Special (Default), None, Low, Medium and High:

None = no averaging or filtering

Low = equivalent to a 3 point moving average Medium = equivalent to a 6 point moving average High = equivalent to a 10 point moving average Special = averaging depending on signal change (normally High averaging but Low averaging

for large changes in input signal)

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will dis-

card the entered values and return to the measurement display screen, selecting Yes will save changes made.

8.3 Alarm / Clean

(PATH: Menu / Configure / Alarm / Clean)

Enter configuration mode as described in section 8.1 “Enter Configuration Mode”.

Transmitter M400 PA 73

8.3.1 Alarm

This menu allows the configuration of alarm functionality for the display. Via PROFIBUS PA inter-

face you can read out the alarm status supplied by the Discrete Input Block. For more information see documentation “PROFIBUS PA parameter Multi-parameter Transmitter M400 PA” on the website “http://www.mt.com/m400-2wire”.

To select ”Setup Alarm”, press the  or . key. Confirm selection with [ENTER].

To select ”Alarm event”, press the  or .key. To navigate to “No/Yes”, press the  and c

keys. Confirm selection with [ENTER].

One of the following events may be alarmed:

1. Power failure

2. Software failure

3. Rg diagnostics – pH glass membrane resistance (only for pH,; pH/pNa Rg diagnostics

detect both pH and pNa membrane glasses)

4. Rr diagnostics – pH reference resistance (only for pH sensors; except pH/pNa)

5. Cond cell open (only for analog cond 2-e / 4-e sensors)

6. Cond cell shorted (only for analog cond 2-e / 4-e sensors)

7. Channel B disconnected (only for ISM sensors)

8. Shaft error (only for optical sensors)

9. Signal error (only for optical sensors)

10. Hardware error (only for optical sensors)

11. Dry Cond sensor (only for ISM cond sensors)

12. Cell deviation (only for ISM cond sensors)

13. Electrolyte low (only for ISM amperometric oxygen sensors)

If any of these criteria are set to Yes and the conditions for an alarm are given, the flashing sym-

bol a will be shown in the display, an alarm message will be recorded (see also section 11.1 “Messages”; PATH: Info/Messages). Via PROFIBUS PA interface you can read out the alarm status supplied by the Discrete Input Block. For more information see documentation “PROFIBUS PA parameter Multi-parameter Transmitter M400 PA” on the website “http://www.mt.com/m400-2wire”.

The conditions for alarms are:

1. There is a power failure or power cycling

2. The software watchdog performs a reset

3. Rg is out of tolerance – for example, broken measuring electrode (only for pH; pH/pNa Rg

diagnostics detect both pH and pNa membrane glasses)

4. Rr is out of tolerance – for example, coated or depleted reference electrode (only for pH sen-

sors; except pH/pNa)

5. If the conductivity sensor is on air (for example in an empty pipe) (only for resistive con-

ductivity sensors)

6. If the conductivity sensor has a short cut (only for resistive conductivity sensors)

7. If no sensor is connected on channel B (only for ISM sensors)

8. If the temperature is out of range, stray light is too high (e.g. because a glass fiber is bro-

ken) or the shaft has been removed (see also section 10.1 “Diagnostics”; PATH: Menu/Service/Diagnostics/O2 optical) (only for optical sensors)

9. If the signal or the temperature value is out of range (see also section 10.1 “Diagnostics”;

PATH: Menu/Service/Diagnostics/O2 optical) (only for optical sensors)

10. If an hardware error has been detected (see also section 10.1 “Diagnostics”;

PATH: Menu/Service/Diagnostics/O2 optical). (only for optical sensors)

Transmitter M400 PA 74

11. If the conductivity sensor is on air (for example in an empty pipe) (only for ISM Conductivity

sensors)

12. Cell constant (multiplier) is out of tolerance, i.e. has changed too much compared to the

value thru the factory calibration (only for ISM conductivity sensors)

13. Electrolyte in the membrane body reaches such a low level that the connection between

cathode and reference is disturbed, an immediate action must be taken e.g. exchange and filling the electrolyte.

For 1 and 2 the alarm indicator will be turned off when the alarm message is cleared. It will reappear if the power is constantly cycling or if the watchdog is repeatedly resetting the system.

Only for pH sensors

For 3 and 4 the alarm indicator will go off if the message is cleared and the sensor has been replaced or repaired so that the Rg and Rr values are within specification. If the Rg or Rr message is cleared and Rg or Rr is still out of tolerance then the alarm will stay on and the message will reappear. The Rg and Rr alarm can be turned off by going into this menu and setting Rg diagnostics and / or Rr diagnostics to No. The message can then be cleared and the alarm indicator will be off even though Rg or Rr is out of tolerance.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will dis-

card the entered values, selecting Yes will make the entered values the current ones.

Note: There are additional alarms, which will be indicated in the display. See therefore in section

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14 “Troubleshooting” the different warning- and alarm lists.

8.3.2 Clean

This menu allows the configuration of clean functionality for the display.

The cleaning interval can be set from 0.000 to 999.9 hours. Setting it to 0 turns the clean cycle

off. The cleaning time can be 0 to 9999 seconds and must be smaller than the cleaning interval.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will dis-

card the entered values and return to the measurement display screen, selecting Yes will save changes made.

Note: The clean functionality is also available via PROFIBUS PA.

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Transmitter M400 PA 75

8.4 ISM Set Up (Available for pH, Oxygen and Dissolved

Carbon Dioxid ISM Sensors)

(PATH: Menu / Configure / ISM Setup)

Enter Configuration mode as described in section 8.1. “Enter Configuration Mode” and navigate to the menu “ISM set up” by using the  or . key. Press [ENTER]

8.4.1 Sensor Monitoring

Select the menu “Sensor Monitoring” by pressing [ENTER].

The sensor monitoring options can be turned on or off. Via PROFIBUS PA interface you can read

out the sensor monitoring values supplied by the Discrete Input Block. The following option is possible:

Lifetime indicator: The dynamic lifetime indication allows an estimation, when the pH electrode

or the inner body of an amperometric oxygen sensors is at the end of his lifetime, based on the actual stress he is exposed to. The sensor permanently takes the averaged stress of the past days into consideration and is able to increase / decrease the lifetime accordingly.

Lifetime Indicator YES / NO Alarm YES / NO

The following parameters affect the lifetime indicator:

Dynamic parameters: Static parameters: – Temperature – Calibration history – pH or oxygen value – Zero and Slope – Glass impedance (only pH) – CIP / SIP / Autoclaving cycles – Reference impedance (only pH)

The sensor keeps the information stored in the built in electronics and can be retrieved via a transmitter or the iSense asset management suite.

The alarm will be reset if the Lifetime Indicator is not 0 days anymore (e.g. after connecting a new sensor or changing on the measurement conditions).

For amperometric oxygen sensors, the lifetime indicator is related to the inner-body of the sensor. After exchanging the inner-body, reset the lifetime indicator as described in section 8.4.5 “Reset ISM Counter / Timer”.

If the Lifetime Indicator is turned on, in the measuring mode the value will be automatically shown in the display on line 3.

Press [ENTER]

Transmitter M400 PA 76

Time to Maintenance: This timer estimates when the next cleaning cycle should be performed to

keep the best possible measurement performance. The timer is influenced by significant changes on the DLI parameters.

Time to Maintenance YES / NO Alarm YES / NO

The time to maintenance can be reset to the initial value by the menu ”Reset ISM Counter Timer” (see section 8.4.5 “Reset ISM Counter / Timer”). For amperometric oxygen sensors, the time to maintenance indicates a maintenance cycle for the membrane and electrolyte.

Press [ENTER]

Activation of the Adaptive Cal Timer: This timer estimates when the next calibration should be

performed to keep the best possible measurement performance. The timer is influenced by significant changes on the DLI parameters.

Adaptive Cal Timer YES / NO Alarm YES / NO

The Adaptive Calibration Timer will be reset to his initial value after a successful calibration. After a successful calibration will also be the alarm reset. If the Adaptive Cal Timer is turned on, the value will be automatically shown in the display on line 4.

Press [ENTER]

The initial value for Time to Maintenance as well as the Adaptive Calibration Timer can be modi-

fied according to the application experience and loaded down to the sensor.

NOTE: By connecting a sensor, the values for Time to Maintenance and/or Adaptive Calibration

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Timer are read out by the sensor.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

Transmitter M400 PA 77

8.4.2 CIP Cycle Limit

Navigate to the menu “CIP Cycle Limit” by using the  and . keys and press [ENTER].

The CIP cycle limit counts the number of CIP cycles. If the limit (user defined) is reached, an

alarm is shown on the display. Via PROFIBUS PA interface you can read out the CIP Cycle Limit supplied by the Discrete Input Block. The following option is possible:

CIP Max 000 Temp 055 Alarm YES / NO

If the Max setting is on 000, the counter functionality is turned off. The alarm will be reset after exchanging the sensor. For oxygen sensors, the counter can be reset (see section 8.4.5 “Reset ISM Counter / Timer”).

CIP characteristics: CIP Cycles will be automatically recognized by the sensor. Since CIP cycles will vary in intensity (duration and temperature) for each application the algorithm of the counter recognizes an increase of the measurement temperature above a adjustable limit (parameter Temp in °C). If the temperature does not decrease below the defined limit within the next 5 minutes after the temperature was reached, the counter in question will be incremented by one and also locked for the next two hours. In the case the CIP would last longer than two hours the counter would be incremented by one once more.

Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.

8.4.3 SIP Cycle Limit

Navigate to the menu “SIP Cycle Limit” by using the  and . keys and press [ENTER].

The SIP cycle limit counts the number of SIP cycles. If the limit (user defined) is reached, an

alarm can be indicated is shown on the display. Via PROFIBUS PA interface you can read out the SIP Cycle Limit supplied by the Discrete Input Block. The following option is possible:

SIP Max 000 Temp 115 Alarm YES / NO

If the Max setting is on 000, the counter functionality is turned off. The alarm will be reset after exchanging the sensor. For oxygen sensors, the counter can be reset (see section 8.4.5 “Reset ISM Counter / Timer”).

SIP characteristics: SIP Cycles will be automatically recognized by the sensor. Since SIP cycles will vary in intensity (duration and temperature) for each application the algorithm of the counter recognizes an increase of the measurement temperature above a adjustable limit (parameter Temp in °C). If the temperature does not decrease below the defined limit within the next 5 minutes after the first temperature was reached, the counter in question will be incremented by one and also locked for the next two hours. In the case the SIP would last longer than two hours the counter would be incremented by one once more.

Transmitter M400 PA 78

Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.

8.4.4 Autoclaving Cycle Limit

NOTE: The transmitter recognizes the connected ISM sensor and offers this menu only if an auto-

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clavable sensor is connected.

Navigate to the menu “AutoClave Cycle Limit” by using the  and . keys and press [ENTER].

The Autoclaving Cycle Limit counts the number of autoclaving cycles. If the limit (user defined)

is reached, an alarm can be indicated is shown on the display. Via PROFIBUS PA interface you can read out the Autoclaving Cycle Limit supplied by the Discrete Input Block. The following option is possible:

Autoclave Max 000 Alarm YES / NO

If the Max setting is on 000, the counter functionality is turned off. The alarm will be reset after exchanging the sensor. For oxygen sensors, the counter can also be reset manually (see section

8.4.5 “Reset ISM Counter / Timer”).

Autoclave characteristics: Since during the autoclaving cycle the sensor is not connected to the transmitter, you will be asked after every sensor connection, whether the sensor was autoclaved or not. According to your selection, the counter will be incremented or not.

Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.

Transmitter M400 PA 79

8.4.5 Reset ISM Counter / Timer

This menu allows resetting counter and timer functions which cannot be reseted automatically. The adaptive calibration timer will be reseted after a successful adjustment or calibration.

Navigate to the menu “Reset ISM Counter/Timer” by using the  and . keys and press

[ENTER].

If an pH sensor or amperometric oxygen sensor is connected, the menu for resetting the Time To

Maintenance is displayed. Time To Maintenance needs to be reset after the following operations.

pH sensors: manual maintenance cycle on the sensor. oxygen sensor: manual maintenance cycle on the sensor or exchanging of the inner-body or

membrane of the sensor

[Press ENTER]

If an oxygen sensor is connected, the menu for resetting the CIP and SIP counter is displayed.

These counters should be reset after the following operations.

amperometric sensor: exchanging of the inner-body of the sensor.

[Press ENTER]

8.4.6 DLI Stress Adjustment (only for pH ISM Sensors)

Through this menu the calculation of the diagnostic data DLI, TTM and ACT can be adapted to application requirements and/or experience.

NOTE: The function is only available for pH ISM sensors with corresponding firmware versions.

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Navigate to the menu “DLI Stress Adjustment” by using the  and . keys and press [ENTER].

Adjust the Process Stress parameter based on the particular application and/or requirements

Low: DLI, TTM and ACT will be increased approximately 25% compared with “Medium”. Medium: Default value, (equal DLI, TTM and ACT values based on former firmware versions of

the transmitter).

High: DLI, TTM and ACT will be reduced approximately 25% compared with “Medium”.

Pressing the [ENTER] key will bring up the Save Changes dialog. Selecting No will discard the entered values, selecting Yes will make activate entered values.

Transmitter M400 PA 80

8.5 Display

(PATH: Menu / Configure / Display)

Enter configuration mode as described in section 8.1 “Enter Configuration Mode”.

This menu allows for the configuration of the values to be displayed and also the configuration of the display itself.

8.5.1 Measurement

The display has 4 lines. Line 1 on top and Line 4 on the bottom.

Select the values (Measurement a, b, c or d) to be displayed on each line of the display.

The selection of the values for a, b, c, d needs to be done under Configuration / measurement / Channel Setup.

Select the ”Error Display” mode. If this is set to ”On” when an alarm or warning has occurred,

the message ”Failure – Press ENTER” will be displayed on Line 4 when an alarm occurs in the normal measurement mode.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will

discard the entered values, selecting Yes will make the entered values the current ones.

8.5.2 Resolution

This menu allows the setting of the resolution of each displayed value.

The accuracy of the measurement is not effected by this setting.

Possible settings are 1, 0.1, 0.01, 0.001 or Auto.

Pressing the [ENTER] key will bring up the Save Changes dialog.

Transmitter M400 PA 81

8.5.3 Backlight

This Menu allows the setting of the back light options of the display.

Possible settings are On, On 50% or Auto Off 50%. If Auto Off 50% is selected then the back-

light will go to 50% after 4 minutes with no keypad activity. The backlight will automatically come back on if a key is pressed.

Pressing the [ENTER] key will bring up the Save Changes dialog.

8.5.4 Name

This menu allows for the configuration of an alpha-numeric name which is displayed in the first

9 characters on lines 3 and 4 of the display. The default is nothing (blank).

If a name is entered on line 3 and / or 4 a measurement can be still displayed on the same line.

Use the  and c keys to navigate between digits to be altered. Using the  and . keys to

change the character to be displayed. Once all digits of both display channels have been entered, press [ENTER] to bring up the Save Changes dialog.

The resulting display in the measurement mode appears on lines 3 and 4 ahead of the

measurements.

8.5.5 ISM Sensor Monitoring (Available when ISM Sensor

Connected)

The sensor monitoring allows you to display the sensor monitoring details on line 3 and 4 in the

display. The following options are possible:

Line 3 Off / Time Indicator / Time to Maint / Adapt Cal Timer Line 4 Off / Time Indicator / Time to Maint / Adapt Cal Timer

Transmitter M400 PA 82

8.6 Hold Outputs

(PATH: Menu / Configure / Hold Outputs)

Enter configuration mode as described in section 8.1 “Enter Configuration Mode”.

The ”Hold outputs” function applies during the calibration process. If set ”Hold outputs” to Yes, during calibration process the corresponding Analog Input of the PROFIBUS PA interface will be at hold state. The hold state depends on the setting. For the possible hold settings, see the list below. The following options are possible:

Hold Outputs? Yes / No

Transmitter M400 PA 83

9 System

(PATH: Menu / System)

System

Set Language Passwords

Set/Clear

Lockout

Reset

Set

Date & Time

While in measurement mode press the  key. Press the . or  key to navigate to ”System” –

Menu and press [ENTER].

9.1 Set Language

(PATH: Menu / System / Set Language)

This menu allows the configuration of the display language.

The following selections are possible:

English, French, German, Italian, Spanish, Portuguese, Russian or Japanese (Katakana).

Pressing the [ENTER] key will bring up the Save Changes dialog.

9.2 Passwords

(PATH: Menu / System / Passwords)

This menu allows for the configuration of operator and administrator passwords, as well as set-

ting up a list of allowed menus for the operator. The administrator has rights to access all menus. All default passwords for new transmitters are ”00000”.

The passwords menu is protected: Enter the administrator password to enter the menu.

Transmitter M400 PA 84

9.2.1 Changing Passwords

See section 9.3 on how to enter the passwords menu. Select Change Administrator or Change

Operator and set the new password.

Press the [ENTER] key and confirm the new password. Press [ENTER] again to bring up the

Save Changed dialog.

9.2.2 Conguring Menu Access for Operator

See 9.3 on how to enter the passwords Menu. Select Configure Operator to configure the access

list for the operator. It is possible to assign / deny rights to the following menus: Cal Key, Quick Setup, Configuration, System, PID Setup and Service.

Choose either Yes or No to give / deny access to the above menus and press [ENTER] to

advance to the next items. Pressing the [ENTER] key after configuring all menus will bring up the Save Changes dialog. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.

9.3 Set / Clear Lockout

(PATH: Menu / System / Set / Clear Lockout)

This menu enables / disables the lockout functionality of the transmitter. The user will be asked

for a password before being allowed into any menus if the lockout functionality is enabled.

The lockout-menu is protected: Enter the administrator or operator password and select YES to

enable or NO to disable the lockout functionality. Pressing the [ENTER] key after the selection will bring up the Save Changes dialog. Selecting No will discard the entered value, selecting Yes will make the entered value the current one.

Transmitter M400 PA 85

9.4 Reset

(PATH: Menu / System / Reset)

NOTE: A reset performed via display, also resets the corresponding PROFIBUS PA parameters to

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Reset System, Reset Meter Cal, Reset Analog Cal.

factory default setting. For more information see documentation “PROFIBUS PA parameter Multiparameter Transmitter M400 PA” on the website “http://www.mt.com/m400-2wire”.

This menu allows access to the following options:

9.4.1 Reset System

This menu allows the reset of the meter to the factory default settings. The meter calibration is

not affected.

Pressing the [ENTER] key after the selection will bring up a confirmation screen. Selecting No

will return the user to the measurement mode with no changes. Selecting Yes will reset the meter.

9.4.2 Reset Meter Calibration

This menu allows the reset of the meter’s calibration factors to the last factory calibration values.

Pressing the [ENTER] key after the selection will bring up a confirmation screen. Selecting No

will return the user to the measurement mode with no changes. Selecting Yes will reset the meter calibration factors.

9.5 Set Date & Time

Please enter the actual date and time. The following options are possible.

This function is automatically activated at every power-up.

Date (YY-MM-DD): Time (HH:MM:SS):

Transmitter M400 PA 86

10 Service

(PATH: Menu / Service)

Service

Calibrate Diagnostics

While in measurement mode press the  key. Press the  or . key to navigate to the ”Service”

menu and press [ENTER]. The available system configuration options are detailed below.

Tech Service

10.1 Diagnostics

(PATH: Menu / Service / Diagnostics)

This menu is a valuable tool for troubleshooting and provides diagnostic functionality for the fol-

lowing items: Model / Software Revision, Display, Keypad, Memory, Read Analog Inputs, O2 Optical.

10.1.1 Model / Software Revision

Essential information for every Service call is the model and software revision number. This

menu shows the part number, model and the serial number of the transmitter. By using the . key it is possible to navigate forward through this menu and get additional information like the current version of firmware implemented on the transmitter: (Master V_XXXX and Comm V_ XXXX); and – if an ISM sensor is connected – the version of the sensor firmware (Sensor FW V_ XXX) and sensor hardware (Sensor HW XXXX).

Press [ENTER] to exit from this display.

10.1.2 Display

All pixels of the display will be lit for 15 seconds to allow troubleshooting of the display. After

15seconds the transmitter will return to the normal measuring mode or press [ENTER] to exit sooner.

Transmitter M400 PA 87

10.1.3 Keypad

For keypad diagnostics, the display will indicate which key is pressed. Pressing [ENTER] will re-

turn the transmitter to the normal measuring mode.

10.1.4 Memory

If Memory is selected then the transmitter will perform a RAM and ROM memory test. Test pat-

terns will be written to and read from all RAM memory locations. The ROM checksum will be recalculated and compared to the value stored in the ROM.

10.1.5 Read Analog Inputs

This menu shows the mA value of the analog input.

Press [ENTER] to exit from this display.

10.1.6 02 Optical

This menu shows the state and conditions regarding the optical O2 sensor. By using the

key  or . it is possible to navigate through this menu and get additional information. Press [ENTER] to exit from this display.

Transmitter M400 PA 88

10.2 Calibrate

(PATH: Menu / Service / Calibrate)

Enter Service Menu as described in section 10 “Service”, select Calibrate, and press [ENTER].

This menu has the options to calibrate the transmitter and the analog inputs and also allows the unlocking of calibration functionality.

10.2.1 Calibrate Meter (only for Channel A)

The M400 transmitter is factory calibrated within specifications. It is not normally necessary to

perform meter re-calibration unless extreme conditions cause an out of spec operation shown by Calibration Verification. Periodic verification / re-calibration may also be necessary to meet Q.A. requirements. Meter calibration can be selected as current (used for most dissolved oxygen, Voltage, Rg Diagnostic, Rr Diagnostic (used for pH), and temperature (used for all measurements).

10.2.1.1 Resistance

The meter is equipped with five (5) internal ranges of measurement on each channel. Each resistance range and temperature is calibrated separately, with each resistance range consisting of a two-point calibration.

Below is a table showing the resistance values for all calibration ranges.

Range Point 1 Point 2 Point 4

Resistivity 1 1.0 Mohms 10.0 Mohms – Resistivity 2 100.0 Kohms 1.0 Mohms – Resistivity 3 10.0 Kohms 100.0 Kohms – Resistivity 4 1.0 Mohms 10.0 Kohms – Resistivity 5 100 Ohms 1.0 Mohms – Temperature 1000 Ohms 3.0 Kohms 66 Kohms

It is recommended that both calibration and verification be performed using the M400 Calibrator Module Accessory (refer to accessory list, in section 15). Instructions on the use of this accessory are provided with the calibrator module.

Navigate to the Calibrate Meter screen and select Channel A or B, and Resistance 1, designating

that the transmitter is ready to calibrate the first range resistor. This resistance may be changed, selecting range 1 thru 5. Each resistance range consists of a two-point calibration.

Press [ENTER] to begin the calibration process.

The first text line will ask for the Point 1 resistance value (this will correspond to Resistance 1

value shown on the Calibration Module Accessory). The second text line will show the measured resistance value. When the value stabilizes, press [ENTER] to perform calibration.

Transmitter M400 PA 89

The transmitter screen will then prompt the user to enter the value for Point 2, and R1 will dis-

play the measured resistance value. When this value stabilizes, press [ENTER] to calibrate this range and bring up a confirmation screen.

Select Yes to save the calibration values and the successful Calibration is confirmed on the display. The transmitter will return to the Measurement mode in approximately 5 seconds.

Once point 1 and 2 are calibrated, return to the Calibrate Meter screen. Move the cursor to

change to Resistance 2, designating the second calibration range. Proceed with the two-point calibration process as performed for the first range. This same process must be followed to complete the resistance calibration of all 5 ranges.

10.2.1.2 Temperature

Temperature is performed as a three point calibration. The table above shows the resistance val-

ues of these three points.

Navigate to the Calibrate Meter screen and choose Temperature calibration for Channel A.

Press [ENTER] to begin temperature calibration process.

The first text line will ask for the Point 1 temperature resistance value (this will correspond to

temperature 1 value shown on the calibration module accessory). The second text line will show the measured resistance value. When the value stabilizes, press [ENTER] to perform calibration.

The transmitter screen will then prompt the user to enter the value for Point 2, and T2 will dis-

play the measured resistance value. When this value stabilizes, press [ENTER] to calibrate this range.

Repeat these steps for Point 3.

Press [ENTER] to bring up a confirmation screen. Select Yes to save the calibration values and

the successful calibration is confirmed on the display.

The transmitter will return to the measurement mode in approximately 5 seconds.

Transmitter M400 PA 90

10.2.1.3 Current

Current calibration is preformed as a two-point calibration.

Navigate to the Calibrate Meter screen and select Channel A.

Enter the value for Point 1, in milliamps, of the current source connected to the input. The sec-

ond display line will show the measured current. Press [ENTER] to begin the calibration process.

Enter the value for Point 2, in milliamps, of the current source connected to the input. The sec-

ond display line shows the measured current.

Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to

save the calibration values and the successful calibration is confirmed on the display. The transmitter will return to the measurement mode in approximately 5 seconds.

Note: Depending on the range of the measured current of the connected oxygen sensor, select

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the input range which has to be calibrated. Select Current1 for an input signal 0 to approx. –750nA and Current2 for an input signal 0 to approx. –7500 nA.

Transmitter M400 PA 91

10.2.1.4 Voltage

Voltage calibration is preformed as a two-point calibration.

Navigate to the Calibrate Meter screen and select Channel A and Voltage.

Enter the value for Point 1 in, volts, connected to the input. The second display line will show

the measured voltage. Press[ENTER] to begin the calibration process.

Enter the value for Point 2, in volts, of the source connected to the input. The second display line

shows the measured voltage.

Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to

save the calibration values and the successful Calibration is confirmed on the display. The transmitter will return to the measurement mode in approximately 5 seconds.

10.2.1.5 Rg Diagnostic

Rg diagnostic is performed as a two-point calibration. Navigate to the Calibrate Meter screen

and select Channel A and Rg Diagnostic.

Enter the value for Point 1 of the calibration according to the resistor connected across the pH

glass electrode measuring input. Press [ENTER] to begin the calibration process.

Enter the value for Point 2 of the calibration according to the resistor connected across the pH

glass electrode measuring input.

Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to

save the calibration values and the successful calibration is confirmed on the display. The transmitter will return to the measurement mode in approximately 5 seconds.

Transmitter M400 PA 92

10.2.1.6 Rr Diagnostic

Rr diagnostic is performed as a two-point calibration. Navigate to the Calibrate Meter screen and

select Channel A and Rr Diagnostic.

Enter the value for Point 1 of the calibration according to the resistor connected across the pH

reference measuring input. Press [ENTER] to begin the calibration process.

Enter the value for Point 2 of the calibration according to the resistor connected across the pH

reference measuring input.

Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to

save the calibration values and the successful calibration is confirmed on the display. The transmitter will return to the measurement mode in approximately 5 seconds.

10.2.1.7 Calibrate Analog Input Signal

The analog input can be calibrated at two current values e.g. 4 mA and 20 mA.

Connect an accurate milliamp meter to the analog input terminals. Enter the value for Point 1,

e.g. 4 mA value. The second line shows the measured current.

Press [Enter] to go on.

Enter the value for Point 2, e.g. 20 mA value

Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Selecting No

will discard the entered values, selecting Yes will make the entered values the current ones.

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10.2.2 Calibrate Unlock

Select this Menu to configure the CAL Menu, see section 7.

Selecting Yes means that meter calibration menus will be selectable under the CAL Menu. Select-

ing No means that only the sensor calibration is available under the CAL Menu. Press [ENTER] after the selection to display a confirmation screen.

10.3 Tech Service

(PATH: Menu/Tech Service)

Note: This menu is for METTLER TOLEDO service personnel use only.

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Transmitter M400 PA 94

11 Info

(PATH: Info)

Info

Messages

Calibration

Data

Model/Software

Revision

ISM Sensor

Info*

* Only available in combination with ISM sensors

Diagnostics*

ISM

Pressing the . key will display the Info menu with the options Messages, Calibration Data and

Model/Software Revision.

11.1 Messages

(PATH: Info/Messages)

The most recent message is displayed. The up and down arrow keys allow scrolling through the

last four messages that have occurred.

Clear Messages clears all the messages. Messages are added to the message list when the

condition that generates the message first occurs. If all messages are cleared and a message condition still exists and started before the clear then it will not appear in the list. For this message to re-occur in the list the condition must go away and then reappear.

Press [ENTER] to exit from this display.

11.2 Calibration Data

(PATH: Info/Calibration Data)

Selecting Calibration Data displays the calibration constants for each sensor.

P = calibration constants for the primary measurement

S = calibration constants for the secondary measurement

Press . for ORP calibration data of ISM pH sensors.

Press [ENTER] to exit from this display.

Transmitter M400 PA 95

11.3 Model / Software Revision

(PATH: Info/Model/Software Revision)

Selecting Model/Software Revision will display the part number, model and the serial number of

the transmitter.

By using the . key it is possible to navigate forward through this menu and get additional information like the current version of firmware implemented on the transmitter (Master V_XXXX and Comm V_XXXX) and – if an ISM sensor is connected – the version of the sensor firmware (Sensor FW V_XXX) and sensor hardware (Sensor HW XXXX).

The displayed information is important for any Service call. Press [ENTER] to exit from this display.

11.4 ISM Sensor Info (Available when ISM Sensor

Connected)

(PATH: Info / ISM Sensor Info)

After plugging in an ISM sensor it is possible by using the key  or . to navigate to the Menu

“ISM Sensor Info”.

Press [ENTER] to select the menu.

The following information about the sensor will be shown in this menu. Use up and down

arrows to scroll in the menu. Type: Type of sensor (e.g. InPro 3250)

Cal Date: Date of the last adjustment Serial-No.: Serial number of the connected sensor Part-No.: Part number of the connected sensor

Press [ENTER] to exit from this display.

11.5 ISM Sensor Diagnostics (Available when ISM Sensor

Connected)

(PATH: Info / ISM Diagnostics)

After plugging in an ISM sensor it is possible by using the key  or . to navigate to the Menu

“ISM Diagnostics”.

Press [ENTER] to select the menu.

Navigate to one of the menus, described in this section, and press [ENTER] again.

Transmitter M400 PA 96

Cal History

The calibration history is stored with a time stamp in the ISM sensor and is displayed on the

transmitter. The calibration history offers the following information:

Fact (Factory calibration): This is the original dataset, determined in the factory. This dataset re-

mains stored in the sensor for reference and cannot be overwritten.

Act (Actual adjustment): This is the actual calibration dataset which is used for the measure-

ment. This dataset moves to Cal2 position after the next adjustment.

1. Adj (First adjustment): This is the first adjustment after the factory calibration. This dataset remains stored in the sensor for reference and cannot be overwritten

Cal1 (last calibration/adjustment): This is the last executed calibration/adjustment. This dataset moves to Cal2 and then to Cal3 when a new calibration/adjustment is performed. Afterwards, the dataset is not available anymore.

Cal2 and Cal3 acting in the same way as Cal1.

Definition: Adjustment: The calibration procedure is completed and the calibration values are taken over and used for the measurement (Act) and stated in Cal1. The current values from Act will move to Cal2.

Calibration: The calibration procedure is completed, but the calibration values will not be overtaken and the measurement continuous with the last valid adjustment dataset (Act). The dataset will be stored under Cal1.

The calibration history is used for the estimation of the lifetime indicator for ISM sensors.

Press [ENTER] to exit from this display.

Note: This function requires the correct setting of date and time during calibration and / or adjust-

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ment tasks (see section 9.5 “Set Date & Time”).

Sensor monitoring (not available for Cond 4-e sensor)

The sensor monitoring shows the different diagnostics functions available for each ISM sensor. The following information is available:

Lifetime Indicator: Shows an estimation of the remaining lifetime to ensure a reliable measure-

ment. The lifetime is indicated in days (d) and percentage (%). Fora description of the Lifetime indicator, please see section 8.4 “ISM Set Up (Available for pH, Oxygen and Dissolved Carbon Dioxid ISM Sensors)”. For oxygen sensors, the lifetime indicator is related to the inner-body of the sensor. If you want to bring the bar indicator on the screen, see section 8.4 to activate ISM functions.

Adaptive Cal Timer: This timer shows a Adaptive Cal Timer, when the next calibration should be

performed to keep the best possible measurement performance. The Adaptive Cal Timer is indicated in days (d) and percentage (%). For a description of the Adaptive Cal Timer, please see section 8.4.

Transmitter M400 PA 97

Time to Maintenance: This timer shows a Time to Maintenance, when the next cleaning cycle

should be performed to keep the best possible measurement performance. The Time to Maintenance is indicated in days (d) and percentage (%). For a description of the Time to Maintenance, please see section 8.4. For oxygen sensors, the Time to Maintenance indicates a maintenance cycle for the membrane and electrolyte.

Press [ENTER] to exit from this display.

Max. Temperature

The maximum temperature shows the maximum temperature that this sensor has ever seen, together with a time stamp of this maximum. This value is stored on the sensor and cannot be changed. During autoclaving the Max temperature is not recorded.

Max. Temperature Tmax XXX°CYY/MM/DD

Press [ENTER] to exit from this display.

Note: This function requires the correct setting of date and time of the transmitter, (see section

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“9.5 “Set Date & Time”)

CIP Cycles

Shows the amount of CIP cycles that the sensor has been exposed to. For a description of the CIP Cycle indicator, please see section 8.4.

CIP Cycles xxx of xxx

Press [ENTER] to exit from this display.

SIP Cycles

Shows the amount of SIP cycles that the sensor has been exposed to. For a description of the SIP Cycle indicator, please see section 8.4.

SIP Cycles xxx of xxx

Press [ENTER] to exit from this display.

Autoclaving Cycles

Shows the amount of Autoclaving cycles that the sensor has been exposed to. For a description of the AutoClave Cycle indicator, please see section 8.4.

Autoclaving Cycles xxx of xxx

Press [ENTER] to exit from this display.

Transmitter M400 PA 98

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12 PROFIBUS PA Interface

12.1 General

12.1.1 System Architecture

The following diagram shows typical examples of a PROFIBUS PA network with the associated components.

2

3

PROFIBUS DP

5

PROFIBUS PA

4

1 PC with PROFIBUS interface card and PROFIBUS configuration program (Class 2 master) 2 PLC (Class 1 master) 3 Segment coupler DP/PA 4 M400 PA transmitter with connected sensor (sensor not illustrated) 5 PROFIBUS PA terminating resistor

NOTE: Further information on PROFIBUS PA can be found in the PNO Guideline and standards

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IEC 61158, IEC 61784, EN 50170/DIN 19245 and EN 50020 (FISCO model).

Transmitter M400 PA 99

12.2 M400 PA Block Model

With PROFIBUS PA, all the instrument parameters are categorized according to their functional properties and task and are generally assigned to three different blocks.

A PROFIBUS PA instrument has the following block types:

A Resource Block (device block)

This block contains all the device-specific features of the device.

One Analayser transducer block (sensor block)

The “Sensor Block ” contains the measuring principles and the sensor-specific parameters.

One or more function blocks

Function blocks contain the automation functions of the instrument. There are different function blocks such as the Analog Input Block or Discrete Input Block. Each of these function blocks is used to execute different application functions.

The function blocks can be connected by means of an PROFIBUS configuration program, depending on the automation task.

M400 PA contains the following blocks:

– 1 Resource Block (device block) – 1 Analyser Transducer Block (sensor block) – 9 Function Blocks: 4 Analog Input Blocks (AI), 1 Analog Output Block (AO),

2 Discrete Input Block (DI), 2 Discrete Output Block (DO)

Transmitter M400 PA 100

12.2.1 Block Conguration

Measured variable

Sensor

Transmitter M400 PA

Analyser Transducer Block

Pressure compensation for O2

Physical Block Resource Block

Primary value

Analog Input Block 1

CHANNEL

Analog Input Block 2

CHANNEL

Analog Input Block 3

CHANNEL

Analog Input Block 4

CHANNEL

Analog Output Block

(Measured value 1)

Secondary value (Measured value 2)

Third value (Measured value 3)

Forth value (Measured value 4)

Display* 1st line

Display* 2nd line

Display* 3rd line

Display* 4th line

PROFIBUS PA

Discrete Input Block 1

Discrete Input Block 2

Hold status

O2 Opt LED Mode

* Default setting

NOTE: If a reset by means of the RESTART parameter, “Default” option in the Resource Block is

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performed, the links between the blocks are deleted and the PROFIBUS PA parameters are reset

Discrete Output Block 1

Discrete Output Block 2

SP1 to SP6 Alarm/Clean status

Hold status

to the default values.