Mettler Toledo M400 Operation Manual

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Operation Manual Multiparameter Transmitter M400

Transmitter Multiparameter M400 52 121 378

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Transmitter Multiparameter M400 2

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Transmitter Multiparameter M400 3

Operation Manual Multiparameter Transmitter M400

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Transmitter Multiparameter M400 4

Content

1 Introduction ___________________________________________________________________________________________ 7

Safety instructions ______________________________________________________________________________________ 7

2.1 Deﬁnition of equipment and documentation symbols and designations ________________________________________

2.2 Correct disposal of the unit _________________________________________________________________________

Unit overview __________________________________________________________________________________________ 9

3.1 Overview 1/2DIN __________________________________________________________________________________

3.2 Control / Navigation Keys ___________________________________________________________________________

3.2.1 Menu Structure ___________________________________________________________________________

3.2.2 Navigation keys __________________________________________________________________________

3.2.2.1 Navigating the menu tree _________________________________________________________

3.2.2.2 Escape _______________________________________________________________________

3.2.2.3 Enter _________________________________________________________________________

3.2.2.4 Menu _________________________________________________________________________

3.2.2.5 Calibration mode _______________________________________________________________

3.2.2.6 Info mode _____________________________________________________________________

3.2.3 Navigation of data entry ﬁelds _______________________________________________________________

3.2.4 Entry of data values, selection of data entry options ______________________________________________

3.2.5 Navigation with

3.2.6 ”Save changes” dialog _____________________________________________________________________

3.2.7 Security Passwords _______________________________________________________________________

3.3 Display ________________________________________________________________________________________

4 Installation instruction __________________________________________________________________________________

4.1 Unpacking and inspection of equipment _______________________________________________________________

4.1.1 Panel cutout dimensional information – 1/2DIN models ___________________________________________

4.1.2 Installation procedure _____________________________________________________________________

4.1.3 1/2DIN version – Assembly _________________________________________________________________

4.1.4 1/2DIN version – Dimension drawings ________________________________________________________

4.1.5 1/2DIN version – Pipe mounting _____________________________________________________________

4.2 Connection of power supply ________________________________________________________________________

4.2.1 Housing (wall mount) _____________________________________________________________________

4.3 Connector PIN deﬁnition ___________________________________________________________________________

4.3.1 TB1 and TB2 ____________________________________________________________________________

4.3.2 TB3 – Conventional (analog) Conductivity Sensors ______________________________________________

4.3.3 TB3 – Conventional (analog) pH / ORP Sensors _________________________________________________

4.3.4 TB3 – Conventional (analog) Dissolved Oxygen _________________________________________________

4.3.5 TB4 – ISM (digital) Sensors, pH and Dissolved Oxygen ___________________________________________

4.3.6 TB4 – Optical Oxygen Sensors ______________________________________________________________

4.4 Connection of Sensor – pH / ORP ____________________________________________________________________

4.4.1 Connection of ISM Sensor, pH and Dissolved Oxygen _____________________________________________

4.4.2 AK9 Cable Assignment ____________________________________________________________________

4.4.3 Connecting the Sensor to the VP Cable ________________________________________________________

4.4.4 VP Cable Assignment ______________________________________________________________________

4.4.5 Typical Wiring (Using TB3 / TB4) _____________________________________________________________

4.4.5.1 Example 1 ____________________________________________________________________

4.4.5.2 Example 2 ____________________________________________________________________

4.4.5.3 Example 3 ____________________________________________________________________

4.4.5.4 Example 4 ____________________________________________________________________

4.5 Connection of Sensor – Dissolved Oxygen _____________________________________________________________

4.5.1 Connecting the Sensor to the VP Cable ________________________________________________________

4.5.2 Typical Wiring using TB3 ___________________________________________________________________

4.6 Connection of Optical Dissolved Oxygen ______________________________________________________________

4.6.1 Connecting the Optical Sensor to a Cable ______________________________________________________

4.6.2 Optical DO Sensor Cable Assignment using TB4 _________________________________________________

5 Placing transmitter in, or out, of service ___________________________________________________________________

5.1 Placing transmitter in service _______________________________________________________________________

5.2 Placing transmitter out of service ____________________________________________________________________

6 Quick Setup __________________________________________________________________________________________

↑ in Display ________________________________________________________________ 11

10 10 10 10 11 11 11 11 11 11 11

12 12 12

13 13 14 14 15 15 16 16 17 17 17 18 18 19 19 20 20 20 21 22 23 23 24 25 26 27 27 28 29 29 29

30 30

7 8

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Transmitter Multiparameter M400 5

7 Sensor Calibration _____________________________________________________________________________________ 32

7.1 Enter Calibration Mode ____________________________________________________________________________

7.2 Conductivity Calibration ___________________________________________________________________________

7.2.1 One-point Sensor Calibration _______________________________________________________________

7.2.2 Two-point Sensor Calibration (4-electrode sensors only) __________________________________________

7.3 Oxygen Calibration _______________________________________________________________________________

7.3.1 One-Point Sensor Calibration ________________________________________________________________

7.3.2 Two Point Sensor Calibration (only available for Optical Sensors) ___________________________________

7.3.3 Process Calibration _______________________________________________________________________

7.4 pH Calibration ___________________________________________________________________________________

7.4.1 One point calibration _____________________________________________________________________

7.4.2 Two point calibration _____________________________________________________________________

7.4.3 Process calibration _______________________________________________________________________

7.4.4 mV calibration __________________________________________________________________________

7.5 Sensor Temperature Calibration _____________________________________________________________________

7.5.1 One-Point Sensor Temperature Calibration ______________________________________________________

7.5.2 Two – Point Sensor Temperature Calibration ____________________________________________________

7.6 Edit Sensor Calibration Constants (only for analog sensor) ________________________________________________

7.7 Sensor Veriﬁcation

________________________________________________________________________________ 38

8 Conﬁguration _________________________________________________________________________________________

8.2 Measurement ___________________________________________________________________________________

8.2.1 Channel Setup ___________________________________________________________________________

8.2.2 Temperature Source (Not used with ISM Sensors) ________________________________________________

8.2.3 pH / O

Parameter related settings ____________________________________________________________ 40

8.2.3.1 Conductivity Temperature Compensation _____________________________________________

8.2.3.2 pH Parameters _________________________________________________________________

8.2.3.3 Dissolved Oxygen Parameters _____________________________________________________

8.2.4 Set Averaging ____________________________________________________________________________

8.3 Analog Outputs __________________________________________________________________________________

8.4 Setpoints ______________________________________________________________________________________

8.5 Alarm / Clean ___________________________________________________________________________________

8.5.1 Alarm __________________________________________________________________________________

8.5.2 Clean __________________________________________________________________________________

8.6 ISM Set up (only available if an ISM sensor is connected) _________________________________________________

8.6.1 Sensor Monitoring ________________________________________________________________________

8.6.2 CIP Cycle Limit ___________________________________________________________________________

8.6.3 SIP Cycle Limit ___________________________________________________________________________

8.6.4 Autoclaving Cycle Limit ____________________________________________________________________

8.6.5 Reset ISM Counter / Timer ___________________________________________________________________

8.7 Display ________________________________________________________________________________________

8.7.1 Measurement ____________________________________________________________________________

8.7.2 Resolution ______________________________________________________________________________

8.7.3 Backlight _______________________________________________________________________________

8.7.4 Name __________________________________________________________________________________

8.7.5 ISM Sensor Monitoring (available when ISM sensor connected) _____________________________________

8.8 Hold Analog Outputs ______________________________________________________________________________

9 System ______________________________________________________________________________________________

9.1 Set Language ___________________________________________________________________________________

9.2 USB ___________________________________________________________________________________________

9.3 Passwords _____________________________________________________________________________________

9.3.1 Changing Passwords ______________________________________________________________________

9.3.2 Conﬁguring Menu Access for Operator _________________________________________________________

9.4 Set / Clear Lockout ________________________________________________________________________________

9.5 Reset __________________________________________________________________________________________

9.5.1 Reset System ____________________________________________________________________________

9.5.2 Reset Meter Calibration ____________________________________________________________________

9.5.3 Reset Analog Calibration ___________________________________________________________________

9.6 Set Date & Time _________________________________________________________________________________

10 PID Setup ____________________________________________________________________________________________

10.1 Enter PID Setup __________________________________________________________________________________

10.2 PID Auto / Manual ________________________________________________________________________________

10.3 Mode __________________________________________________________________________________________

10.3.1 PID Mode _______________________________________________________________________________

32 32 33 33 33 33 34 34 35 35 36 36 36 37 37 37 38

39 39 40

40 41 42 42 43 44 45 45 46 46 46 47 48 48 49 49 49 50 50 50 51 51

52 52 53 53 53 54 54 54 54 55 55

57 57 58 58

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Transmitter Multiparameter M400 6

10.4 Tune Parameters _________________________________________________________________________________ 59

10.4.1 PID Assignment & Tuning __________________________________________________________________

10.4.2 Setpoint & Deadband ______________________________________________________________________

10.4.3 Proportional Limits ________________________________________________________________________

10.4.4 Corner Points ____________________________________________________________________________

10.5 PID Display _____________________________________________________________________________________

11 Service ______________________________________________________________________________________________

11.1 Diagnostics _____________________________________________________________________________________

11.1.1 Model / Software Revision ___________________________________________________________________

11.1.2 Digital Input _____________________________________________________________________________

11.1.3 Display ________________________________________________________________________________

11.1.4 Keypad ________________________________________________________________________________

11.1.5 Memory ________________________________________________________________________________

11.1.6 Set Relay _______________________________________________________________________________

11.1.7 Read Relays _____________________________________________________________________________

11.1.8 Set Analog Outputs _______________________________________________________________________

11.1.9 Read Analog Outputs ______________________________________________________________________

11.2 Calibrate _______________________________________________________________________________________

11.2.1 Calibrate Meter (only for channel A) __________________________________________________________

11.2.1.1 Temperature ___________________________________________________________________

11.2.1.2 Current _______________________________________________________________________

11.2.1.3 Voltage _______________________________________________________________________

11.2.1.4 Rg Diagnostic __________________________________________________________________

11.2.1.5 Rr Diagnostics _________________________________________________________________

11.2.2 Calibrate Analog _________________________________________________________________________

11.2.3 Calibrate Unlock __________________________________________________________________________

11.3 Tech Service ____________________________________________________________________________________

12 Info _________________________________________________________________________________________________

12.1 Messages ______________________________________________________________________________________

12.2 Calibration Data _________________________________________________________________________________

12.3 Model / Software Revision __________________________________________________________________________

12.4 ISM Sensor Info (available when ISM sensor connected) __________________________________________________

12.5 ISM Sensor Diagnostics (available when ISM sensor connected) ____________________________________________

13 Maintenance __________________________________________________________________________________________

13.1 Front Panel Cleaning ______________________________________________________________________________

14 Troubleshooting _______________________________________________________________________________________

14.1 Changing the Fuse _______________________________________________________________________________

14.2 Warning- and Alarm list pH ________________________________________________________________________

14.3 Warning- and Alarm list O

14.4 Warning- and Alarm list Optical O

________________________________________________________________________ 72

__________________________________________________________________ 73

15 Accessories and Spare Parts _____________________________________________________________________________

16 Speciﬁcations _________________________________________________________________________________________

16.1 General speciﬁcations ____________________________________________________________________________

16.2 Electrical speciﬁcations ____________________________________________________________________________

16.3 Mechanical speciﬁcations __________________________________________________________________________

16.4 Environmental speciﬁcations _______________________________________________________________________

Default tables _________________________________________________________________________________________ 77

17.1 General ________________________________________________________________________________________

17.2 M400 _________________________________________________________________________________________

17.3 Error messages __________________________________________________________________________________

18 Warranty _____________________________________________________________________________________________

19 Buffer tables __________________________________________________________________________________________

19.1 Mettler-9 _______________________________________________________________________________________

19.2 Mettler-10 ______________________________________________________________________________________

19.3 NIST Technical Buffers _____________________________________________________________________________

19.4 NIST standard buffers (DIN and JIS 19266: 2000–01) ___________________________________________________

19.5 Hach buffers ___________________________________________________________________________________

19.6 Ciba (94) buffers ________________________________________________________________________________

19.7 Merck Titrisole, Riedel-de-Haën Fixanale ______________________________________________________________

19.8 WTW buffers ____________________________________________________________________________________

59 60 60 60 60

61 61 61 62 62 62 62 63 63 63 64 64 64 65 65 66 66 67 67 67

68 68 69 69 69

72 72

75 76 76 76

77 78 80

82 82 83 83 84 84 85 85

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Transmitter Multiparameter M400 7

1 Introduction

Statement of Intended Use – The M400 Multiparameter transmitter is a single- channel online process instrument for measuring various properties of ﬂuids. These include Conductivity, Dissolved Oxygen and pH / ORP. The M400 is not suitable for O2 gas-phase measurement applications. The M400 is available in three different levels. The level indicates the amount of measurement parameters which can be covered. The parameters are indicated on the label on the back of the system.

The M400 is a unique mixed mode transmitter who can handle conventional sensors (analog) or ISM sensors (digital).

M400 parameter ﬁt guide Parameter Type 1 Type 2 Type 3

Analog ISM Analog ISM Analog ISM pH / ORP • • • • • • Conductivity • •* • •* • •* Oxygen ppm / ppb / traces – – • / – / – • / – / – • / • / – • / • / – Oxygen optical ppm / ppb – – – • / – – • / •

* Q1 / 2009

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. The M400 Multiparameter transmitter can be conﬁgured to use its four analog and / or six relay outputs for process control.

The M400 Multiparameter transmitter is equipped with a USB communication interface. This interface provides real-time data output and complete instrument conﬁguration capabilities for central monitoring via Personal Computer (PC).

2 Safety instructions

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

2.1 Deﬁnition of equipment and documentation symbols and designations

WARNING: POTENTIAL FOR PERSONAL INJURY.

CAUTION: possible instrument damage or malfunction.

NOTE: Important operating information.

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

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Transmitter Multiparameter M400 8

– 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). – 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

described 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 modiﬁcations

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

national 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

provided 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 and relay contacts 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.

NOTE: RELAY CONTROL ACTION: the M400 transmitter relays will always de-energize on loss of

NOTE: PROCESS UPSETS: Because process and safety conditions may depend on consistent

NOTE: This is a 4-wire-product with an active 4–20 mA analog output.

power, equivalent to normal state, regardless of relay state setting for powered operation. Conﬁgure any control system using these relays with fail-safe logic accordingly.

operation of this transmitter, provide appropriate means to maintain operation during sensor cleaning, replacement or sensor or instrument calibration.

Please do not supply to Pin1–Pin6 of TB2.

2.2 Correct disposal of the unit

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

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Transmitter Multiparameter M400 9

5.90

[150]

5.90

[150]

Enter

Info

CalMenu

M300

ESC

3 Unit overview

The M400 models are available in 1/2DIN case size. The M400 models provide an integral IP65 housing for wall- or pipemount.

3.1 Overview 1/2DIN

1 – Hard Polycarbonate case 2 – Five Tactile-Feedback Navigation Keys 3 – Four-line LCD Display 4 – Power Supply Terminals 5 – USB Interface Port 6 – Relay Output Terminals 7 – Analog Output / Digital Input Terminals 8 – Sensor Input Terminals (analog TB, digital TB) 9 – List of parameters to be measured with this unit

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Transmitter Multiparameter M400 10

Measurement

Mode M400

CalMenu Info

Quick Setup Configure System PID Setup Service Messages

ISM Sensor

Info*

Measurement

Analog Outputs

Set Points

Alarm/Clean

ISM Setup*

Set Language

USB

Passwords

Set/Clear Lockout

Reset

PID A/M

Tune Parameters

Mode

Calibrate

Tech Service

Diagnostics

Display

Hold Outputs

Set Date & Time

Channel Select

Output

Set Points

Model/Software

Revision

PID Display Setup

Calibration Data

ISM

Diagnostics*

* Only available in combination with ISM sensors

Menu Cal

Info

Enter

ESC

3.2 Control / Navigation Keys

3.2.1 Menu Structure

Below is the structure of the M400 menu tree:

3.2.2 Navigation keys

3.2.2.1 Navigating the menu tree

Enter the desired main Menu branch with the   or  keys. Use the  and  keys to

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

navigate through the selected Menu branch.

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

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Transmitter Multiparameter M400 11

3.2.2.2 Escape

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

3.2.2.3 Enter

Use the ↵ 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  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  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 (ex: conﬁguring

multiple setpoints). Be sure to use the  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.

3.2.5 Navigation with ↑ in Display

If a ↑ is displayed on the bottom right hand corner of the display, you can use the  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.

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Transmitter Multiparameter M400 12

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 & ↑” (Save changes and go back one screen) and ”No & Exit” (Don’t save changes and exit to measuring mode). The ”Yes & ↑” 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 for more information.

3.3 Display

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

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

NOTE: During calibrations (Channel A), clean, Digital In with Analog Output / Relay / USB in Hold

NOTE: Channel A (A is shown on the left side of the display) indicates that a conventional

state, a ﬂashing ”H” (Hold) will appear in the upper left corner of the display. During calibration on Channel B, a ﬂashing ”H” (Hold) will appear in the second line. Change to B and ﬂash. 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.

Sensor is connected to the transmitter. Channel B (B is shown on the left side of the display) indicates, that an ISM Sensor is connected

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

same time.

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Transmitter Multiparameter M400 13

5.39

+0.02

–0.00

[137

+0.5

]

–0.0

5.39

+0.02

–0.00

[137

+0.5

]

–0.0

PANEL CUT-OUT

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.

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.

Optional hardware accessories are available that allow for panel- or pipe-mount. Refer to Section 15 for ordering information.

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Transmitter Multiparameter M400 14

4.1.2 Installation procedure

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 – Drill out wall-mount breakthroughs in the rear housing. – Mount rear housing 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

dimensions required for transmitter service and maintenance. – Insert two black protective covers (supplied with the M400 transmitter) over the ﬁxing

hardware and into the space on the inside back cover, as shown in the drawing below.

This is necessary to maintain unit integrity. – Replace the front housing to the rear housing. 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 for ordering information.

4.1.3 1/2DIN version – Assembly

1 3 Pg 13.5 cable glands 2 2 plastic plugs 3 4 screws

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Transmitter Multiparameter M400 15

84 mm

3.31"

42 mm

1.65"

136 mm/5.35"

15 0

5. 9

6.5 mm

0.256"

116 mm/4.57"

150 mm/5.9"

29 mm

1.14"

29 mm

1.14"

90 mm/3.54"

80 mm/3.15"

75 mm/2.95"

35 mm/

1.38"

6 mm/

0.236"

90 mm/3.54"

138 mm ± 0.5 mm

5.43" ± 0.02"

138 mm ± 0.5 mm

5.43" ± 0.02"

�40 ... �60 mm �1.57... �2.36"

4.1.4 1/2DIN version – Dimension drawings

4.1.5 1/2DIN version – Pipe mounting

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Transmitter Multiparameter M400 16

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. High voltage may be present on the input power wires and relay wires.

A two-terminal connector on the rear panel of all M400 models is provided for power connection. All M400 models are designed to operate from a 20–30 VDC or a 100 to 240 VAC power source. Refer to speciﬁcations for power requirements and ratings and size power wiring accordingly (AWG 14, wire cross-section ≤ 2.5 mm2).

The terminal block for power connections is labeled ”Power” on the rear panel of the transmitter. One terminal is labeled – N for the Neutral wire and the other + L for the Line (or Load) wire. The terminals are suitable for single wires and ﬂexible leads up to 2.5 mm2 (AWG 14). 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 h symbol.

4.2.1 Housing (wall mount)

1 Connection of power supply 2 Terminal for sensors

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Transmitter Multiparameter M400 17

TB2 for1⁄2DIN

1 AO1+ 2 AO1–/AO2– 3 AO2+ 4 AO3+ 5 AO3–/AO4– 6 AO4+ 7 DI1+ 8 DI1–/DI2– 9 DI2+

1 NO1 2 COM1 3 NC1 4 NO2 5 COM2 6 NC2 7 COM5

8 NC5

9 COM6 10 NO6 11 NO3 12 COM3 13 NO4 14 COM4

TB2 TB3

TB4

TB1

1 14

1 9 1 9 1 9

TB1 for1⁄2 DIN

4.3 Connector PIN deﬁnition

4.3.1 TB1 and TB2

Power connections are labeled – N for Neutral and + L for Line, for 100 to 240 VAC or 20–30 VDC.

NO = normally open (contact open if un-actuated). AO = Analog Output NC = normally closed (contact closed if un-actuated). DI = Digital Input

NOTE: This is a 4-wire-product with an active 4–20 mA analog output.

Please do not supply to Pin1–Pin6 of TB2.

4.3.2 TB3 – Conventional (analog) Conductivity Sensors

Pin no. Sensor wire Color Function

1 white Cnd inner 1 2 white / blue Cnd outer 1 3 blue Cnd inner 2 4 black Cnd outer 2 / Shield 5 – not used 6 bare shield RTD ret / GND 7 red RTD sense 8 green RTD 9 – +5V

Transparent not used.

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Transmitter Multiparameter M400 18

4.3.3 TB3 – Conventional (analog) pH / ORP Sensors

pH / ORP sensors use 52 300 1XX series VP cables, or 10 001 XX02 series AS9 cables (ORP only).

Pin no. Sensor wire Color Function

1 Coax inner / transparent Glass 2 not used 3* Coax shield / red Reference 4* green / yellow, blue Solution GND / Shield 5 – not used 6 white RTD ret / GND 7 RTD sense 8 green RTD 9 – +5V

grey (no connection)

Take care that AS9 cable and AK9 cable have the same conﬁguration. So, if you want AS9 cable with InPro 2000 and AK9 cable with InPro 3030 connect to TB3, do it as DPAS sensor. Pin no. 1 – Sensing (electrode). Pin no. 3 – Reference (Install jumper 3 to 4).

NOTE: * Install Jumper 3 to 4 when used without Solution Ground.

4.3.4 TB3 – Conventional (analog) Dissolved Oxygen

These sensors use 52 300 1XX series VP cables.

Pin no. Sensor wire Color Function

1* – not used 2 Coax Shield / red Anode 3* – not used 4* green / yellow Shield / GND 5 Coax Inner / transparent Cathode 6 white, grey Temperature, Guard 7 – not used 8 green Temperature 9 – +5V

Blue wire not used.

NOTE: * Install Jumper (supplied) 1 to 3 to 4 when using InPro 6900 (ppb measurement).

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Transmitter Multiparameter M400 19

4.3.5 TB4 – ISM (digital) Sensors, pH and Dissolved Oxygen

The wiring of the digital 9 terminal connectors is:

Pin no. Sensor wire Color Function

1 – 24 VDC 2 – GND (24 VDC) 3 Cable core 1-Wire 4 Shield GND (5 VDC) 5 – No connection 6 – GND (5 VDC) 7 – RS485– 8 – RS485+ 9 – 5 VDC

– ISM digital sensors can only be connected on TB4. – Analog sensors can only be connected on TB3.

4.3.6 TB4 – Optical Oxygen Sensors

Pin no. Sensor wire Color Function

1 brown 24 VDC 2 black GND (24 VDC) 3 – 1-Wire 4 grey and yellow GND (5 VDC) 5 – No connection 6 – GND (5 VDC) 7 blue RS485– 8 white RS485+ 9 – 5 VDC

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Transmitter Multiparameter M400 20

4.4 Connection of Sensor – pH / ORP

4.4.1 Connection of ISM Sensor, pH and Dissolved Oxygen

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

4.4.2 AK9 Cable Assignment

A: 1-wire data (transparent) B: Ground/shield

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Transmitter Multiparameter M400 21

A B C D E F S

4.4.3 Connecting the Sensor to the VP Cable

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

observe the sensor instruction manual.

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Transmitter Multiparameter M400 22

Glass electrode

Ref. electrode

Solution ground

Outer shield

A transparent

B red

D blue

C gray

E white

F green

S green/yellow

C = 220 nF

4.4.4 VP Cable Assignment

T1 / T2 = Temperature probe for 2-wire connection T3 = Additional connection for temperature probe (3-wire connection)

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Transmitter Multiparameter M400 23

Cable

Combination pH electrode

Temperature probe

yellowgreen

green

red

transparent

white

Jumper

4.4.5 Typical Wiring (Using TB3 / TB4)

4.4.5.1 Example 1

pH measurement without Solution Ground

NOTE: Jumper Terminals 3 and 4.

Wire colors only valid for connection with VP cable; blue and grey not connected. 1 – Glass 2 – Not used 3 – Reference 4 – Shield / GND 5 – Not used 6 – Solution GND / RTD ret 7 – Not used 8 – RTD 9 – Not used

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Transmitter Multiparameter M400 24

yellowgreen

green

red

transparent

white

Combination pH electrode with RTD and SG

Temperature probe

blue

Cable

4.4.5.2 Example 2

pH measurement with Solution Ground

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

1 – Glass 2 – Not used 3 – Reference 4 – Shield / Solution GND 5 – Not used 6 – GND / RTD ret 7 – Not used 8 – RTD 9 – Not used

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Cable

ORP electrode

Temperature probe

Reference electrode

Sensing electrode

Jumper

4.4.5.3 Example 3

ORP (redox) measurement (temperature optional)

NOTE: Jumper Terminal 3 and 4

1 – Platinum 2 – Not used 3 – Reference 4 – Shield / GND 5 – Not used 6 – RTD ret 7 – Not used 8 – RTD 9 – Not used

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yellowgreen

green

red

transparent

white

Combination pH electrode with RTD and SG

Temperature probe

blue

Cable

Not connected

Jumper

4.4.5.4 Example 4

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

NOTE: Jumper Terminal 3 and 4

1 – Platinum 2 – Not used 3 – Reference 4 – Shield / GND 5 – Not used 6 – RTD ret 7 – Not used 8 – RTD 9 – Not used

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A B C D E F S

4.5 Connection of Sensor – Dissolved Oxygen

4.5.1 Connecting the Sensor to the VP Cable

NOTE: Be sure to observe the sensor instruction manual.

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red

transparent

green

white

yellow/green

gray

blue

4.5.2 Typical Wiring using TB3

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

NOTE: Install Jumper (supplied) 1 to 3 to 4 when using InPro 6900 (ppb measurement).

M400 connector:

1 – not used 2 – Anode 3 – not used 4 – Shield / GND 5 – Cathode 6 – NTC ret, Guard 7 – Not used 8 – NTC 2 9 – not used

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A B C D E F

gray

black

brown

yellow

black

blue

4.6 Connection of Optical Dissolved Oxygen

4.6.1 Connecting the Optical Sensor to a Cable

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

4.6.2 Optical DO Sensor Cable Assignment using TB4

1 – 24 VDL 2 – GND 24 VDL 3 – not used 4 – GND (5 VDL) 5 – not used 6 – not used 7 – RS 485– 8 – RS 485+ 9 – not used

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5 Placing transmitter in, or out, of service

5.1 Placing transmitter in service

After connecting the transmitter to power supply circuit, it will be active as soon as the circuit is powered.

5.2 Placing transmitter out of service

First disconnect the unit from the main power source, then 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.

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6 Quick Setup

(PATH: Menu / Quick Setup)

Select Quick Setup and press the [ENTER] key. Enter the security code if necessary (see section 9.3)

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

Note: Refer to section 3.3 for information on menu navigation.

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

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7 Sensor Calibration

(PATH: Cal)

The calibration key  allows the user one-touch access to Sensor calibration and veriﬁcation features.

NOTE: During Calibration on Channel A, a ﬂashing ”H” (Hold) in the upper left corner of the

display indicates a calibration is in process with a Hold condition active. (The hold output function needs to be activated.) See also chapter 3.3.

7.1 Enter Calibration Mode

While in Measurement mode press the  key. Press the  or  key to select the type of calibration desired.

After selecting ”Sensor”, use the  key to move to the next line. Select the channel ”A” or ”B” to be calibrated. Select the desired Sensor Calibration task. The choices for each sensor type are: Conductivity = Conductivity, Resistivity, Temperature*, Edit*, Verify Oxygen = Oxygen, Temperature*, Edit*, Verify pH = pH, mV, Temperature*, Edit pH*, Edit mV, Verify Press [ENTER].

* only on channel ”A”

After every successful calibration, the three options are available: Adjust: Calibration values will be overtaken und used for the measurement. Additionally,

the data will be stored in the calibration history*.

Calibrate: Calibration values will be stored in the calibration history* for documentation,

but will not be used for the measurement. The calibration values from the last valid Adjustment will be further used for the measurement.

Abort: Calibration values will be discarded. * only available with ISM sensors

7.2 Conductivity Calibration

This feature provides the ability to perform a one-point or two-point Conductivity ”Sensor” calibration. 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. Four electrode sensors do require a two-point calibration.

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

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

Enter Conductivity Sensor Calibration mode as described in section 7.1.

Choose ”standard” or ”linear” compensation mode.

Press [ENTER].

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7.2.1 One-point Sensor Calibration

(Display reﬂects typical Conductivity Sensor calibration)

Select 1 point Calibration and press [ENTER].

Enter the Value of calibration Point 1 and then press the [ENTER] key to start calibration. The value in the 2nd text line is the actual measured value from the sensor prior to calibration.

After the calibration the Multiplier or slope calibration factor ”M” and the Adder or offset calibration factor ”A” are displayed.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.2.2 Two-point Sensor Calibration (4-electrode sensors only)

Enter Conductivity Sensor Calibration mode as described in section 7.1. Select 2 point Calibration and press [ENTER].

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

Enter the Value of Point 1 and press the [ENTER] key. Place the sensor into the second reference solution. Enter the Value of Point 2 and press the [ENTER] key to start the calibration.

After the calibration the Multiplier or slope calibration factor ”M” and the Adder or offset calibration factor ”A” are displayed.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.3 Oxygen Calibration

Dissolved Oxygen calibration is performed as either a one-point or process calibration.

7.3.1 One-Point Sensor Calibration

Before air calibration, for highest accuracy, enter the barometric pressure and relative lumidity, as described in section 8.2.3.3.

Enter Oxygen Calibration mode as described in section 7.1.

A DO sensor calibration is always either a one point Air (Slope) 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 DO. A one-point zero dissolved oxygen calibration is available but not normally recommended since zero DO is very hard to achieve.

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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 (Air or zero) only the phase at this point is measured and the phase at the other point (Air or Zero is internally calculated. 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 (Phi 100) or ZeroPt (Phi 0) as the calibration type. Press [ENTER].

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 calibration factor S (Phi 100) and the offset calibration factor Z (Phi 0) are displayed.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.3.2 Two Point Sensor Calibration (only available for Optical Sensors)

A 2-points 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.

7.3.3 Process Calibration

Enter Oxygen Calibration mode as described in section 7.1.

Select Process followed by either Slope or ZeroPt (Phi 100 or Phi 0) 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  key again to proceed with the calibration. Enter the O2 value of the sample then press the [ENTER] key to start calibration.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

During a process calibration of an optical Sensor the phase of the ﬂuorescence light at a point between 5% and 100% air is measured and the phases at 100% and 0% are calculated to determine a new calibration curve.

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Process calibration at oxygen values below 5% air saturation is only available for M400 Type 3 in combination with InPro 6970 i.

The InPro 6880 i and InPro 6870 i only provide process calibration at oxygen values above 5% air saturation.

7.4 pH Calibration

For pH sensors, the M400 transmitter features one-point, two-point (Auto or Manual mode) or process calibration with 8 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 8.2.3.2 for conﬁguring modes and selecting buffer sets.) Please select the correct buffer table before using automatic calibration (see chapter 19).

After every successful calibration, the three following options are available: Adjust: Calibration values are taken over and used for the measurement. Additionally,

the data’s will be stored in the calibration history.

Calibrate: Calibration values will be stored in the calibration history, but will be not used for

the measurement. The calibration values from the last valid Adjustment will be further used for the measurement.

Abort: Calibration values will be aborted.

Enter pH Calibration mode as described in section 7.1.

7.4.1 One point calibration

Select 1 point Calibration.

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

Auto mode: The display shows the buffer that the transmitter has recognized (Point 1) and the measured value. Manual mode: Enter the buffer value and press [ENTER] to proceed.

As soon as the drift conditions have stabilized (or [ENTER] pressed in manual mode) the display changes to show the slope calibration factor S and the offset calibration factor Z.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

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7.4.2 Two point calibration

Select 2 point Calibration. Place the electrode in the ﬁrst buffer solution and then press the [ENTER] key.

Auto mode: The display shows the buffer that the transmitter has recognized (Point 1) and the measured value. Manual mode: Enter the buffer value and press [ENTER] to proceed.

As soon as the drift conditions have stabilized (or [ENTER] pressed in manual mode) the display changes and prompts you to place the electrode in the second buffer solution.

As soon as the drift conditions have stabilized (or [ENTER] pressed in manual mode) the display changes to show the slope calibration factor S and the offset calibration factor Z.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.4.3 Process calibration

Select Process 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 pH Value of the Sample, press the  key again to proceed with the calibration.

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

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.4.4 mV calibration

Enter mV Calibration mode as described in section 7.1.

The user can now enter Point 1. The offset calibration factor is calculated as: Point1 + mV (measured value) and displayed on the next screen.

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Z is the newly calculated offset calibration factor. The slope calibration factor S is always 1 and does not enter the calculation.

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.5 Sensor Temperature Calibration

Enter Sensor Calibration mode as described in section 7.1 and select Temperature.

7.5.1 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).

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

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.5.2 Two – Point Sensor Temperature Calibration

Select 2 point as calibration Type.

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

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

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Transmitter Multiparameter M400 38

After a successful calibration, the calibration values are taken over and stored in the cal history (Adjust), only stored in the cal history (Calibrate) or aborted.

7.6 Edit Sensor Calibration Constants (only for analog sensor)

Enter Calibration mode as described in section 7.1 and select Edit, Edit pH or 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 Yes to save the new calibration values and the successful Calibration is conﬁrmed on the display.

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

necessary to enter the unique calibration constant located on the sensor label.

7.7 Sensor Veriﬁcation

Enter Calibration mode as described in section 7.1. 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.

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Configure

Measurement Analog Outputs Set Points Alarm/Clean ISM Setup* Display Hold Outputs

* Only available in combination with ISM sensors

8 Conﬁguration

(PATH: Menu / Conﬁgure)

8.1 Enter Conﬁguration 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.

Press the [ENTER] key to select this Menu. The following sub menus can now be selected: Channel Setup, Temperature Source, Comp / pH / O

and Set Averaging.

8.2.1 Channel Setup

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

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

Conventional (analog) Sensor

Select Sensor Type (Analog or ISM) and press [ENTER]. Available Measurement Types are (depends on transmitter type)

Measurement parameter Type

pH / ORP = pH or ORP 1,2,3 Cond (2) = 2 electrode conductivity 1,2,3 Cond (4) = 4 electrode conductivity 1,2,3 O2 hi = only Dissolved oxygen (ppm) (no gas) 2,3 O2 lo = only Dissolved oxygen (ppb) (no gas) 3

The 4 lines of the display can now be conﬁgured with sensor channel ”A” (if analog Sensor is chosen) or ”B” (if ISM Sensor is chosen) 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.

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ISM (digital) Sensor

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, Cond (2), Cond(4), O2 hi or 02 lo), depending on the type of transmitter you have. Choose the display setting for line a, b, c, d.

Measurement parameter Type

pH / ORP = pH or ORP 1,2,3 Cond (2) = 2 electrode conductivity* 1,2,3 Cond (4) = 4 electrode conductivity* 1,2,3 O2 hi = Dissolved oxygen (ppm) 2,3 O2 lo = Dissolved oxygen (ppb, traces*) 3 O2 opt hi = Dissolved oxygen (ppm) optical 2,3 O2 opt lo = Dissolved oxygen (ppb) optical 3 * Available as of Q4 / 2008

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 (Not used with ISM Sensors)

Press the [ENTER] key to select this: Menu / Conﬁgure / Measurement / Temperature Source. 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 Pt100: 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.

8.2.3 pH / O2 Parameter related settings

Press [ENTER] to select this: Menu / Quick Setup / Channel select ISM / Parameter. Additional measurement and calibration parameters can be set for each parameter; conductivity, pH and O2.

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

8.2.3.1 Conductivity Temperature Compensation

The temperature compensation mode for any of the four measurement lines can be selected. Temperature compensation should be matched to the characteristics of the application. Choices are ”Standard” and ”Linear”. Press [ENTER] and save changes.

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.

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

8.2.3.2 pH Parameters

Select pH and press [ENTER].

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) 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 Unsuccessful Press Enter to Continue” is displayed.

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 or None. See Section 20 for buffer values. If the auto buffer feature will not be used or if the available buffers are different from those above, select None.

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.

IP is the isothermal point value (Default = 7.000 for most applications). For speciﬁc compensation requirements or non standard inner buffer value, this value can be changed.

The option to enter a ﬁxed Calibration Temperature is given. ”Fixed” allows a speciﬁc temperature value to be entered. Selecting ”No” means the Temperature conﬁgured under 8.2.2 will be used for the Calibration.

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.

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8.2.3.3 Dissolved Oxygen Parameters

Select O2 and press [ENTER]

Enter the Atmospheric pressure. The default value for AtmPres is 759.8 and the default unit is mmHg.

Enter the Process Pressure. The units for process pressure and atmospheric pressure do not have to be the same.

The salinity of the measured solution and the relative humidity of the calibration gas can also be entered. The allowed values for Relative Humidity are in the range 0.00 to 100%. When no humidity measurement is available, use 50% (default value).

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.

8.2.4 Set Averaging

Press the [ENTER] key to select this: Menu / Conﬁgure / Measurement / Set Averaging. 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 discard the entered values and return to the measurement display screen, selecting Yes will save changes made.

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8.3 Analog Outputs

(PATH: Menu / Conﬁgure / Analog Outputs)

Enter conﬁguration mode as described in Section 8.2.

Press the [ENTER] key to select this Menu, which lets you conﬁgure the 4 Analog Outputs. Once analog outputs have been selected, use the  and  buttons to navigate between conﬁgurable parameters. Once a parameter is selected, its setting can be selected per the following table:

When an Alarm Value is selected, the analog output will go to this value if any alarm condition occurs.

Parameter Selectable Values

Aout: 1, 2, 3 or 4 (default is 1) Measurement: a, b, c, d or blank (none) (default is blank) Alarm Value: 3.6 mA, 22.0 mA or Off (default is off)

The Aout type can be Normal, Bi-Linear, Auto-Range or Logarithmic. The range can be 4–20mA or 0–20mA. Normal provides linear scaling between the minimum and maximum scaling l imits and is the default setting. Bi-Linear will also prompt for a scaling value for the mid-point of the signal and allows two different linear segments between the minimum and maximum scaling limits.

Enter the minimum and maximum Value of Aout.

If Auto-Range was selected then Aout max1 can be conﬁgured. Aout max1 is the maximum value for the ﬁrst range on Auto-Range. The maximum value for the second range on AutoRange was set in the previous menu. If Logarithmic Range was selected, it will also prompt for the number of decades as ”Aout1 # of Decades =2”.

The value for the Hold mode can be conﬁgured to hold the Last value or can be set to a Fixed value.

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.

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8.4 Setpoints

(PATH: Menu / Conﬁgure / Setpoints)

Enter conﬁguration mode as described in Section 8.1.

Press the [ENTER] key to select this Menu.

Up to 6 Setpoints can be conﬁgured on any of the measurements (a thru d). The possible Setpoint types are Off, High, Low, Outside and Between.

An ”Outside” Setpoint will cause an alarm condition whenever the measurement goes above its high limit or below its low limit. A ”Between” Setpoint will cause an alarm condition to occur whenever the measurement is between its high and low limits.

Enter the desired value(s) for the Setpoint and press [ENTER]

This screen provides the option to conﬁgure a setpoint to be active on an over range condition. Select the setpoint and ”Yes” or ”No”. Select the desired relay that will activate when the setpoint alarm condition is reached.

Over Range Once conﬁgured, the selected relay will be activated if a sensor over-range condition is detected on the assigned input channel.

Delay

Enter the delay time in seconds. A time delay requires the setpoint to be exceeded continuously for the speciﬁed length of time before activating the relay. If the condition disappears before the delay period is over, the relay will not be activated.

Hysteresis Enter the hysteresis as a percentage-value. A hysteresis value requires the measurement to return within the setpoint value by a speciﬁed percentage before the relay is deactivated.

For a high setpoint, the measurement must decrease more than the indicated percentage below the setpoint value before the relay is deactivated. With a low setpoint, the measurement must rise at least this percentage above the setpoint value before the relay is deactivated. For example, with a high setpoint of 100, when this value is exceeded, the measurement must fall below 90 before the relay is deactivated.

Hold Enter the Relay Hold Status of ”Last”, ”On” or ”Off”. This is the state the Relay will go to during a Hold status.

State

Relay contacts are in normal state until the associated setpoint is exceeded, then the relay is activated and the contact states change.

Select ”Inverted” to reverse the normal operating state of the relay (i.e. Normally open contacts are in a closed state, and normally closed contacts are in an open state, until the setpoint is exceeded). ”Inverted” relay operation is functional when power is applied to the M400 transmitter. Relay No 2 always operates inverted. All other relays can be conﬁgured.

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.

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8.5 Alarm / Clean

(PATH: Menu / Conﬁgure / Alarm / Clean)

Enter conﬁguration mode as described in Section 8.1.

This Menu allows the conﬁguration of Alarm and Clean functionality.

8.5.1 Alarm

To select ”Setup Alarm”, press the  or  key so that ”Alarm” is ﬂashing.

Using the  and  buttons, navigate to ”Use Relay #”. Using the  or  keys, select a relay to be used for the Alarm and press [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 sensors)

4. Rr Diagnostics – pH reference resistance (only for pH sensors)

5. Cond cell open (only for cond sensors)

6. Cond cell shorted (only for cond 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)

Detailed information about error messages for an optical sensor you ﬁnd in the Menu/Service/Diagnostics/O2 optical.

If any of these are set to Yes, an alarm signal will be initiated, the selected relay will be activated, and an alarm message will be recorded if:

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 sensors)

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

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

6. If the conductivity sensor has a short cut

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

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.

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Each Alarm Relay can be conﬁgured in either a Normal or Inverted state. In addition, a Delay for the activation can be set. For more information, refer to Section 8.4.

If power failure is turned on, only inverted state is possible and cannot be changed.

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 Clean

Conﬁgure the Relay to be used for the cleaning cycle. The Default value is Relay 1.

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.

Select the desired Relay state: Normal or Inverted.

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.

8.6 ISM Set up (only available if an ISM sensor is connected)

8.6.1 Sensor Monitoring

The sensor monitoring options can be turned on or off and every Alarm can be assigned to a certain output relays. The following options are possible:

Lifetime indicator: The dynamic lifetime indication allows an estimation, when the sensor (pH) or inner body (DO) or OptoCap 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 R# choose relay

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) – Phase 0 and Phase 100 (only optical DO) – Reference impedance (only pH) – Illumination time (only optical DO) – CIP / SIP / Autoclaving cycles

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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 reseted if the Lifetime Indicator is not 0 days anymore (e.g. after connecting a new sensor or changes 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 in the ISM Setup menu (menu Conﬁgure).

For optical DO sensors the lifetime indicator is related to the OptoCap. After exchanging the OptoCap, reset the lifetime indicator in the ISM Setup menu (menu Conﬁgure).

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

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 R# choose relay

The alarm will be reseted after a successful calibration. If the Adaptive Cal Timer is turned on, the value will be automatically shown in the display on line 4.

NOTE: The recommended initial value for the calibration interval will be uploaded from the

NOTE: The recommended initial value for the maintenance interval will be uploaded from the

sensor to the transmitter and can be adapted according to the application experience (menu Conﬁgure / ISM Setup / Sensor monitoring).

Time to Maintenance (not for optical sensors): 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 R# choose relay

The alarm needs to be reseted in the menu ”ISM Setup”. For oxygen sensors, the time to maintenance indicates a maintenance cycle for the membrane and electrolyte.

sensor to the transmitter and can be adapted according to the application experience (menu Conﬁgure / ISM Setup / Sensor monitoring).

8.6.2 CIP Cycle Limit

Please activate the function ISM (see chapter 8.2.1) conﬁguring the CIP cycle limit. The CIP cycle limit counts the number of CIP cycles if the limit (user deﬁned) is reached, an alarm can be indicated and set to a certain output relays. The following options are possible:

CIP Max 000 Alarm YES / NO R# choose relay

If the Max setting is on 000, the counter functionality is turned off. The alarm will be reseted after exchanging the sensor. For oxygen sensors, the counter can be reseted in the ISM Setup menu (menu Conﬁgure)

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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 certain level (70 °C for CIP). If the temperature does not decrease below (60 °C for CIP) 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 CIP would last longer than two hours the counter would be incremented by one once more.

8.6.3 SIP Cycle Limit

The SIP cycle limit counts the number of SIP cycles if the limit (user deﬁned) is reached, an alarm can be indicated and set to a certain output relays. The following options are possible:

SIP Max 000

Alarm YES / NO R# choose relay

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 certain level (110 °C for SIP). If the temperature does not decrease below (100 °C for SIP) 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.

8.6.4 Autoclaving Cycle Limit

The Autoclaving cycle limit counts the number of Autoclaving cycles if the limit (user deﬁned) is reached, an alarm can be indicated and set to a certain output relays. The following options are possible:

Autoclave Max 000

Alarm YES / NO R# choose relay

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.

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8.6.5 Reset ISM Counter / Timer

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

for pH sensors: Reset Maintenance Timer Yes / No After a manual maintenance cycle on the sensor, this timer needs to be reseted.

for oxygen sensors: Reset Maintenance Timer Yes / No After a manual maintenance cycle on the sensor, this timer needs to be reseted.

Reset Lifetime Indicator Yes / No After exchanging the inner-body of the sensor, this timer needs to be reseted.

Reset CIP counter Yes / No Reset SIP counter Yes / No Reset Autoclaving counter Yes / No After a manual maintenance cycle on the sensor, this timer needs to be reseted

8.7 Display

(PATH: Menu / Conﬁgure / Display)

Enter conﬁguration mode as described in Section 8.1.

This Menu allows for the conﬁguration of the values to be displayed and also the conﬁguration of the Display itself.

8.7.1 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 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.

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8.7.2 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.

8.7.3 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 backlight 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.

8.7.4 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  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.

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8.7.5 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

8.8 Hold Analog Outputs

(PATH: Menu / Conﬁgure / Hold Outputs)

Enter conﬁguration mode as described in Section 8.1.

The ”Hold outputs” function applies during the calibration process. If set ”Hold outputs” to Yes, during calibration process the analog output, the output relay and USB ouptut 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

The ”DigitalIn” function applies all the time. As soon as a signal is active on the digital input the transmitter goes to hold mode and the values on the analog output, the output relays and the USB output will be at hold state.

DigitalIn1 / 2 State = On / Low / High

NOTE: DigitalIn1 is to hold channel A (conventional sensor)

Possible Hold states: Output relays: On / Off (Conﬁguration / Set point) Analog Output: Last / Fixed (Conﬁguration / Analog output) USB: Last / Off (System / USB) PID relay Last / Off (PID setup/Mode) PID analog Last / Off (PID setup/Mode)

DigitalIn2 is to hold channel B (ISM sensor)

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System

Set Language USB Passwords

Set/Clear

Lockout

Reset

Set

Date & Time

9 System

(PATH: Menu / System)

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 USB

(PATH: Menu / System / USB)

This menu allows conﬁguration of the USB hold function.

USB Hold may be set to either Off or Last Values. An external host device may poll the M400 for data. If the USB Hold is set to Off, current values are returned. If the USB Hold is set to Last Values, the values present at the time the hold condition was established are returned.

Press [ENTER] to bring up the Save Changes dialog.

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9.3 Passwords

(PATH: Menu / System / Passwords)

This Menu allows for the conﬁguration of Operator and Administrator Passwords, as well as setting 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.

9.3.1 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.

9.3.2 Conﬁguring 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.

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9.4 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.

9.5 Reset

(PATH: Menu / System / Reset)

This Menu allows access to the following options: Reset System, Reset Meter Cal, Reset Analog Cal.

9.5.1 Reset System

This Menu allows the reset of the meter to the factory default settings (Setpoints off, analog outputs off, etc.). The meter calibration and the analog output calibration are 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.

9.5.2 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.

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9.5.3 Reset Analog Calibration

This Menu allows reset of the Analog Output calibration factors to the last factory calibration values.

9.6 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):

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PID Setup

Tune

Parameters

ModePID A/M PID Display

10 PID Setup

(PATH: Menu / PID Setup)

PID control is proportional, integral and derivative control action that can provide smooth regulation of a process. Before conﬁguring the transmitter, the following process characteristics must be identiﬁed.

Identify the control direction of the process

– Conductivity: Dilution – direct acting where increasing measurement produces increasing control output

such as controlling the feed of low conductivity diluting water to rinse tanks, cooling towers or boilers

Concentrating – reverse acting where increasing measurement produces decreasing control

output, such as controlling chemical feed to attain a desired concentration

– Dissolved Oxygen:

Deaeration – direct acting where increasing DO concentration produces increasing control

output such as controlling the feed of a reducing agent to remove oxygen from boiler feedwater

Aeration – reverse acting where increasing DO concentration produces decreasing control

output, such as controlling an aerator blower speed to maintain a desired DO concentration in fermentation or wastewater treatment

– pH / ORP:

Acid feed only – direct acting where increasing pH produces increasing control output, also

for ORP reducing reagent feed

Base feed only – reverse acting where increasing pH produces decreasing control output,

also for ORP oxidizing reagent feed

Both acid and base feed – direct and reverse acting

Identify the control output type based on the control device to be used: Pulse Frequency – used with pulse input metering pump Pulse Length – used with solenoid valve Analog – used with current input device such as electric drive unit, analog input metering

pump or current-to-pneumatic (I / P) converter for pneumatic control valve

Default control settings provide linear control, which is appropriate for conductivity, dissolved oxygen. Therefore, when conﬁguring PID for these parameters (or simple pH control) ignore settings of deadband and corner points in the Tuning Parameter section below. The non-linear control settings are used for more difﬁcult pH / ORP control situations. If desired, identify the non-linearity of the pH / ORP process. Improved control can be obtained if the non-linearity is accommodated with an opposing non-linearity in the controller. A titration curve (graph of pH or ORP vs. reagent volume) made on a process sample provides the best information. There is often a very high process gain or sensitivity near the setpoint and decreasing gain further away from the setpoint. To counteract this, the instrument allows for adjustable non-linear control with settings of a deadband around the setpoint, corner points

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Controller with Corner Points

–120%

–100%

–80%

–60%

–40%

–20%

20%

40%

60%

80%

100%

120%

0 2 4 6 8 10 12 14

Process Variable

Deadband - value

Proportional limit –100% value

Proportional limit +100% value

Error (%)

Direct corner point (value, %)

Set point value

Deadband + value

Reverse corner point (value, %)

further out and proportional limits at the ends of control as shown in the ﬁgure below. Determine the appropriate settings for each of these control parameters based on the shape of the pH process titration curve.

10.1 Enter PID Setup

While in Measurement mode press the  key. Press the  or  key to navigate to the PID Setup – Menu and press [ENTER].

10.2 PID Auto / Manual

(PATH: MENU / PID Setup / PID A / M)

This menu allows selection of Automatic or Manual operation. Select Auto or Manual operation. Pressing the [ENTER] key will bring up the Save Changes dialog.

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10.3 Mode

(PATH: MENU / PID Setup / Mode)

This menu contains the selection of control modes using relays or analog outputs. Press [ENTER].

10.3.1 PID Mode

This menu assigns a relay or analog output for PID control action as well as details of their operation. Based on the control device being used, select one of the following three paragraphs for use with solenoid valve, pulse input metering pump or analog control.

Pulse Length – If using a solenoid valve, select ”Relays” and ”PL”, Pulse Length. Choose the ﬁrst relay position as #3 (recommended) and / or the second relay position as #4 (recommended) as well as the Pulse Length (PL) according to the table below. A longer pulse length will reduce wear on the solenoid valve. The % ”on” time in the cycle is proportional to the control output.

NOTE: All relays from #1 to #6 can be used for the controlling function.

Conductivity

pH / ORP

Dissolved Oxygen

1st Relay Position

(#3)

Controlling concentrating reagent feed

Feeding base Feeding acid

Reverse control action

2nd Relay Position

(#4)

Controlling dilution water

Direct acting control action

Pulse Length (PL)

Short (PL) provides more uniform feed. Suggested start point = 30 sec

Reagent addition cycle: short PL provides more uniform addition of reagent. Suggested start point = 10 sec

Feed cycle time: short PL provides more uniform feed. Suggested start point = 30 sec

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Pulse Frequency – If using a pulse input metering pump, select ”Relays” and ”PF”, Pulse Frequency. Choose the ﬁrst relay position as #3 and / or the second relay position as #4 according to the table below. Set the pulse frequency to the maximum frequency allowed for the particular pump being used, typically 60 to 100 pulses / minute. Control action will produce this frequency at 100% output.

NOTE: All relays from #1 to #6 can be used for the controlling function.

CAUTION: Setting the Pulse Frequency too high may cause the pump to overheat.

1st Relay Position = #3 2nd Relay Position = #4 Pulse Frequency (PF)

Conductivity

pH / ORP

Dissolved Oxygen

Controlling concentrating chemical feed

Feeding base Feeding acid

Reverse control action

Controlling dilution water

Direct acting control action

Max allowed for the pump used (typically 60–100

Analog – If using Analog control, change ”Relays” to ”Analogout” using up / down arrow keys. Choose the ﬁrst Analogout position as #1 and / or the second Analogout position as #2 according to the table below. Select the analog output current range required by the control device, 4–20 or 0–20 mA. Press [ENTER].

1st Analogout Position = #1 2nd Analogout Position = #2

Conductivity

pH / ORP Dissolved Oxygen Reverse control action Direct acting control action

Controlling concentrating chemical feed

Feeding base Feeding acid

Controlling dilution water

10.4 Tune Parameters

(PATH: MENU / PID Setup / Tune Parameters)

This menu assigns control to a measurement and sets the setpoint, tuning parameters and nonlinear functions of the controller through a series of screens.

10.4.1 PID Assignment & Tuning

Assign the measurement, a, b, c, or d to be controlled after ”PID on_”. Set the Gain (unitless), Integral or Reset time Tr (minutes) and Rate or Derivative time Td (minutes) needed for control. Press [ENTER]. Gain, Reset and Rate are later adjusted by trial and error based on process response. Always begin with Td at zero.

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10.4.2 Setpoint & Deadband

Enter the desired setpoint value and the deadband around the setpoint, where no proportional control action will take place. Be sure to include the units multiplier µ or m for conductivity. Press [ENTER].

10.4.3 Proportional Limits

Enter the low and high proportional limits – the range over which control action is required. Be sure to include the units multiplier µ or m for conductivity. Press [ENTER].

10.4.4 Corner Points

Enter the low and high corner points in conductivity, pH, dissolved oxygen units and the respective output values from –1 to +1, shown in the ﬁgure as –100 to +100%. Press [ENTER].

10.5 PID Display

(PATH: Menu / PID Setup / PID Display Setup)

This screen enables display of PID control status in the normal measurement mode.

When PID Display is selected, the status (Man or Auto) and control output (%) will be displayed on the bottom line. If controlling pH, the reagent will also be displayed. In addition, for the display to be enabled, a measurement must be assigned under Tune Parameters and a relay or analog output must be assigned under Mode.

In Manual, the control output may be adjusted with the up and down arrow keys. (The ”Info” key function is not available in Manual.)

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Service

Tech Service

Calibrate Diagnostics

11 Service

(PATH: Menu / Service)

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

11.1 Diagnostics

(PATH: Menu / Service / Diagnostics)

This Menu is a valuable tool for troubleshooting and provides diagnostic functionality for the following items: Model / Software Revision, Digital Input, Display, Keypad, Memory, Set Relays, Read Relays, Set Analog Outputs, Read Analog Outputs.

11.1.1 Model / Software Revision

Essential information for every Service call is the model and software revision number. This Menu shows the transmitter part number, serial number and software version number. Press [ENTER] to exit from this display.

11.1.2 Digital Input

The digital Input menu shows the state of the digital inputs. Press [ENTER] to exit from this display.

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11.1.3 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.

11.1.4 Keypad

For keypad diagnostics, the display will indicate which key is pressed. Pressing [ENTER] will return the transmitter to the normal Measuring mode.

11.1.5 Memory

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

11.1.6 Set Relay

The Set Relays diagnostic menu allows for the activation / deactivation of eachRelay. To access relays 5 and 6, press [ENTER].

0 = Normal (normally open contacts are open) 1 = Inverted (normally open contacts are closed)

Press [ENTER] to return to Measurement mode.

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11.1.7 Read Relays

The Read Relays diagnostic menu shows the state of each Relay as deﬁned below. To display Relays 5 and 6, press [ENTER]. Press [ENTER] again to exit from this display.

0 = Normal 1 = Inverted.

11.1.8 Set Analog Outputs

This menu enables the user to set all analog outputs to any mA value within the 0–22 mA range. Press [ENTER] to exit from this display.

11.1.9 Read Analog Outputs

This menu shows the mA value of the analog Outputs. Press [ENTER] to exit from this display.

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11.2 Calibrate

(PATH: Menu / Service / Calibrate)

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

11.2.1 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 oxyge, Voltage, Rg Diagnostic, Rr Diagnostic (used for pH), and Temperature (used for all measurements).

11.2.1.1 Temperature

Temperature is performed as a three point calibration. The table above shows the resistance values 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 display 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.

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11.2.1.2 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 second 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 second 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.

11.2.1.3 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.

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11.2.1.4 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.

11.2.1.5 Rr Diagnostics

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.

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11.2.2 Calibrate Analog

Select the Analog Output you wish to calibrate. Each Analog output can be calibrated at 4 and 20 mA.

Connect an accurate milliamp meter to the Analog output terminals and then adjust the ﬁve digit number in the display until the milliamp meter reads 4.00 mA and repeat for 20.00 mA.

As the ﬁve digit number is increased the output current increases and as the number is decreased the output current decreases. Thus coarse changes in the output current can be made by changing the thousands or hundreds digits and ﬁne changes can be made by changing the tens or ones digits.

Pressing the [ENTER] key after entering both values will bring up a conﬁrmation screen. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.

11.2.3 Calibrate Unlock

Select this Menu to conﬁgure the CAL Menu, see Section 7.

Selecting Yes means that Meter and Analog Output calibration Menus will be selectable under the CAL Menu. Selecting No means that only the Sensor calibration is available under the CAL Menu. Press [ENTER] after the selection to display a conﬁrmation screen.

11.3 Tech Service

(PATH: Menu / Tech Service)

Note: This Menu is for Mettler Toledo Service personnel use only.

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Info

Calibration

Data

Messages

Model/Software

Revision

ISM Sensor

Info*

ISM

Diagnostics*

* Only available in combination with ISM sensors

12 Info

(PATH: Info)

Pressing the  key will display the Info Menu with the options Messages, Calibration Data and Model / Software Revision.

12.1 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.

12.2 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 [ENTER] to exit from this display.

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12.3 Model / Software Revision

Selecting Model / Software Revision will display the model number, serial number and installed software revision.

The displayed information is important for any Service call. Press [ENTER] to return to the normal measurement mode.

12.4 ISM Sensor Info (available when ISM sensor connected)

After plugging in an ISM sensor, 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

12.5 ISM Sensor Diagnostics (available when ISM sensor connected)

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 remains stored in the sensor for reference and cannot be overwritten.

Act (Actual adjustment): This is the actual calibration dataset which is used for the measurement. This dataset moves to Cal-2 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

Cal-1 (last calibration / adjustment): This is the last executed calibration / adjustment. This dataset moves to Cal-2 and then to Cal-3 when a new calibration / adjustment is performed. Afterwards, the dataset is not available anymore.

Cal-2 and Cal-3 acting in the same way as Cal-1.

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Transmitter Multiparameter M400 70

Deﬁnition: Adjustment: The calibration procedure is completed and the calibration values are taken over and used for the measurement (Act) and stated in Cal-1. The current values from Act will move to Cal-2. 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 Cal-1. The calibration history is used for the estimation of the lifetime indicator for ISM sensors.

Sensor Monitoring

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 measurement. The lifetime is indicated in days (d) and percentage (%). For a description of the Lifetime indicator, please see section 8.6 ISM Setup. For Oxygen sensors, the lifetime indicator is related to the inner-body of the sensor or the OptoCap for optical sensors. If you want to bring the bar indicator on the screen, see chapter 8.7.5 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 8.6 ISM Setup.

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 8.6 ISM Setup. For oxygen sensors, the Time to Maintenance indicates a maintenance cycle for the membrane and electrolyte.

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°C YY / MM / DD

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 8.6 ISM Setup

CIP Cycles xxx of xxx

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 8.6 ISM Setup

SIP Cycles xxx of xxx

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 8.6 ISM Setup

Autoclaving Cycles xxx of xxx

Page 71

Transmitter Multiparameter M400 71

13 Maintenance

13.1 Front Panel Cleaning

Clean the front panel with a damp soft cloth (water only, no solvents). Gently wipe the surface and dry with a soft cloth.

14 Troubleshooting

If the equipment is used in a manner not speciﬁed by Mettler-Toledo Thornton, Inc., the protection provided by the equipment may be impaired.

Review the table below for possible causes of common problems:

Problem Possible Cause

– No power to M400.

Display is blank.

Incorrect measurement readings.

Measurement readings not stable.

Displayed is ﬂashing. – Setpoint is in alarm condition (setpoint exceeded). Cannot change menu settings. – User locked out for security reasons.

– Blown fuse. – LCD display contrast set incorrectly. – Hardware failure.

– Sensor improperly installed. – Incorrect units multiplier entered. – Temperature compensation incorrectly set or

disabled. – Sensor or transmitter needs calibration. – Sensor or patch cord defective or exceeds

recommended maximum length. – Hardware failure.

– Sensors or cables installed too close to equipment

that generates high level of electrical noise. – Recommended cable length exceeded. – Averaging set too low. – Sensor or patch cord defective.

Page 72

Transmitter Multiparameter M400 72

14.1 Changing the Fuse

Make sure that the mains cable is unplugged before changing the fuse. This operation should only be carried out by personnel familiar with the transmitter and who are qualiﬁed for such work.

If the power consumption of the M400 transmitter is too high or a manipulation leads to a short circuit the fuse will blow. In this case remove the fuse and replace it with one speciﬁed in Section 15.

14.2 Warning- and Alarm list pH

Warnings Description Warning pH slope > 101% Slope too big Warning pH Slope < 95% Slope too small Warning pH Zero > 7.5 pH Zero offset too big Warning pH Zero < 6.5 pH Zero offset too small Warning pHGls change < 0.3 Glass electrode resitance changed by more than factor 0.3 Warning pHGls change > 3 Glass electrode resitance changed by more than factor 3 Warning pHRef change < 0.3 Reference electrode resitance changed by more than factor 0.3 Warning pHRef change > 3 Reference electrode resitance changed by more than factor 3

Alarms Description Watchdog time-out SW/System fault Error pH Slope > 102% Slope too big Error pH Slope < 90% Slope too small Error pH Zero > 8.0 pH Zero offset too big Error pH Zero < 6.0 pH Zero offset too small Error pH Ref Res >150 KΩ Reference electrode resistance too big (break) Error pH Ref Res < 2000 Ω Reference electrode resistance too small (short) Error pH Gls Res > 2000 MΩ Glass electrode resistance too big (break) Error pH Gls Res < 5 MΩ Glass electrode resistance too small (short)

14.3 Warning- and Alarm list O2

Warnings Description

Warning O2 Slope < –90nA Slope too big Warning O2 Slope > –35nA Slope too small Warning O2 ZeroPt > 0.3nA Zero offset too big Warning O2 ZeroPt < –0.3nA Zero offset too small

Alarms Description

Watchdog time-out SW/System fault Error O2 Slope < –110 nA Slope too big Error O2 Slope > –30 nA Slope too small Error O2 ZeroPt > 0.6 nA Zero offset too big Error O2 ZeroPt < –0.6 nA Zero offset too small

Page 73

Transmitter Multiparameter M400 73

14.4 Warning- and Alarm list Optical O2

Warnings Description

Chx Cal Required ATC = 0 Chx CIP Counter Expired Limit of CIP cycles reached Chx SIP Counter Expired Limit of SIP cycles reached Chx Autocl. Count. Exp. Limit of autoclaving cycles reached

Alarms Description

Chx Change Spot Replace OptoCap Chx Signal error Signal or Temperature out of spec

Chx Shaft error

Chx Hardware error Electronical componants fail

Temperature bad, stray light too high (Glass ﬁber broken), shaft removed

Page 74

Transmitter Multiparameter M400 74

15 Accessories and Spare Parts

Please contact your local Mettler-Toledo Sales ofﬁce or representative for details for additional accessories and spare parts.

Description Order no.

Pipe Mount Kit for ½ DIN models 52 500 212 Panel Mount Kit for ½ DIN models 52 500 213 Protective Hood for ½ DIN models 52 500 214

Page 75

Transmitter Multiparameter M400 75

16 Speciﬁcations

16.1 General speciﬁcations

Conductivity / resistivity Speciﬁcations

0.01 cm–1 constant sensor 0.002 to 200 µS / cm

0.1 cm–1 constant sensor 0.02 to 2000 µS / cm 10 cm–1 constant sensor 10 to 40,000 µS / cm 4-electrode sensor 0.01 to 650 mS / cm

Chemical concentration curves

Temperature input PT1000 / PT100 Temperature measuring range – 40 to + 200.0 °C (–40 to 392 °F) Sensor maximum distance 61 m (200 ft); 15 m (50 ft with 4-E sensors)

Cond / Res accuracy

Repeatability

Resolution auto / 0.001 / 0.01 / 0.1 / 1 (can be selected) Temperature resolution 0.1 °C ( 0.1 °F), (can be selected) Temperature relative accuracy ± 0.25 °C (± 0.45 °F) Temperature repeatability ± 0.13 °C (± 0.23 °F) Ratings / Approvals

pH Speciﬁcations

pH range –1.00 to 15.00 pH pH Resolution auto / 0.01 / 0.1 / 1 (can be selected) pH Relative accuracy ± 0.03 pH mV range –1500 to 1500 mV mV Resolution 1 mv mV Relative accuracy ± 2 mV Temperature input Pt1000 / Pt100 / NTC22K Temperature measuring range –30 to 130 °C (22 to 266 °F)

Available Buffer Sets:

MT-9 buffers, MT-10 buffers, NIST Technical Buffers, NIST Standard Buffers (DIN 19266:2000–01), JIS Standard, Hach buffers, CIBA (94) buffers, Merck Titrisols-Reidel Fixanals, WTW buffers

Dissolved Oxygen Speciﬁcations

Measuring current (Air) at 25 °C (77 °F), 1 bar (14.5 psi)

Concentration range 0.1ppb (µg/L) to 20.00ppm (mg/L) Relative Accuracy ± 0.5% of full scale reading Resolution 30 pA Temperature input NTC 22 kΩ / Pt1000 Temperature measuring range –10 to 80 °C (14 to 176 °F)

HCl (0.01–15%), H2SO4 (0–25%), NaOH (0.01–13%), H3PO4 (0–35%)

± 0.5% of reading or 0.25Ω , whichever is greater, Up to 10 MΩ -cm

+ / – 0.25% of reading or 0.25 ohm, whichever is greater

UL Listed, CE Compliant

ppm: 25 nA to 130 nA / ppb: 200 nA to 550 nA traces: 1500 nA to 6500 nA

Page 76

Transmitter Multiparameter M400 76

16.2 Electrical speciﬁcations

Power requirements

Frequency 50 to 60 Hz

Analog output signals

Measurement Error through analog outputs

Analog output conﬁguration Linear, Bi-Linear, Logarithmic, Autoranging Load max. 500 Ω Connection terminals Detachable screw terminals Digital communication USB port, Type B connector PID process controller Pulse length, pulse frequency or analog control Connection terminals Detachable screw terminals Digital Input 2 Mains power fuse 1.0 A slow blow type FC

Relays

Alarm Relay delay 0–999 s Keypad 5 tactile feedback keys Display four-line Max. cable length ISM 80 m

100 to 240 V AC or 20 to 30 V DC, 10 VA,

AWG 14 <2.5 mm

Four 0 / 4 to 20 mA outputs, galvanically isolated

from input and from earth / ground

< + / – 0.05 mA over 1 to 20 mA range,

< + / – 0.1 mA over 0 to 1 mA range

2-SPDT mechanical 250VAC, 30 VDC,3 Amps

2-SPST mechanical rated at 250VAC, 3 Amps

2-Reed 250VAC or DC, 0.5 A

NOTE: This is a 4-wire-product with an active 4–20 mA analog output.

Please do not supply to Pin1–Pin6 of TB2.

16.3 Mechanical speciﬁcations

Dimensions (housing – H x W x D)* 144 x 144 x 116 mm Front bezel – H x W 150 x 150 mm Max. D – panel mounted 87 mm (excludes plug-in connectors) Weight 0.95 kg (2 lb) Material ABS / polycarbonate Ingress rating IP 65 only when back cover is attached

* H=Height, W=Width, D=Depth

16.4 Environmental speciﬁcations

Storage temperature –40 to 70 °C (–40 to 158 °F) Ambient temperature operating range –10 to 50 °C (14 to 122 °F) Relative humidity 0 to 95% non-condensing Emissions According to EN55011 Class A

Hazardous areas FM: cFMus Class I Division 2 (pending) /

Atex: ATEX Zone 2 (pending)

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Transmitter Multiparameter M400 77

17 Default tables

17.1 General

Alarm Relay 2

Diagnostics off Power Failure off Software Failure off Delay 1 sec Hysteresis 0 State inverted

Clean Relay 1

Interval 0 Hrs Clean Time 0 Sec State normal Delay 0

Hysteresis 0 Language English Passwords Administrator 00000

Operator 00000 All Relays (unless otherwise speciﬁed) Delay 10 Sec

Hysteresis 5 %

State normal

Hold mode Last Lockout (on / off) no = off Channel A Measurement a Resistivity pH Ω -cm

Measurement b temperature °C Channel B Measurement c Resistivity pH Ω -cm

Measurement d Temperature °C Cal constants Cond / Res M=0.1, A=0.0

Dissolved Oxygen M=1.0, A=0.0

pH M=1.0, A=0.0

Temperature M=1.0, A=0.0 Analog Out 1 a – Cond / Resistivity MΩ-cm

2 b – temperature °C

3 c – Cond / Resistivity MΩ -cm

4 d – Temperature °C All analog out Mode 4 – 20 mA

Type normal

Alarm off

Hold mode last value Conductivity / Resistivity

Dissolved Oxygen Value 4 mA 0.000 ppb

pH Value 4 mA 2.000 pH

Temperature Value 4 mA 0 °C

Set point 1 Measurement a

Relay 3 Set Point 1 Set point 2 Measurement c

Relay 4 Set Point 2 Resolution Temperature 0.1 °C

Value 4 mA 10 MΩ-cm

Value 20 mA 20 MΩ-cm

Value 20 mA 100.0 ppb

Value 20 mA 12.00 pH

Value 20 mA 100 °C

Type Off

Value 0

Type Off

Value 0

Cond / Res

0.01 Ω -cm

Page 78

Transmitter Multiparameter M400 78

17.2 M400

Parameter Sub parameter Value Unit

Alarm relay 2

diagnostics No Cond cell No power failure No software failure No Disconnect ChB No DLI monitor No CIP cycle counter No SIP cycle counter No

Autoclave cycle c. cycle counter

delay 1 sec hysteresis 0 state inverted

Clean relay 1

hold mode Hold Interval 0 Hrs clean time 0 Sec state normal delay 0

hysteresis 0 Language English Passwords administrator 00000

operator 00000 Analog Out 1 a –

2 b

All Relays(Unless Otherwise Speciﬁed)

delay 10 sec

hysteresis 5 %

state normal

hold mode Last Lockout Yes/No No

Cond/Res M=0.1, A=0.0

Cal constants (Analog sensor)

S= –70.00 nA, Z= 0.00 nA (O2 high)

S= –350.00 nA, Z= 0.00 nA (O2 low)

S= 100.0%, Z= 7.000 pH

temperature M= 1.0, A= 0.0

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Transmitter Multiparameter M400 79

Parameter Sub parameter Value Unit

Analog Out 1 a

2 b

All analog out mode 4–20 mA

type normal

alarm off

hold mode last value

Conductivity/ Resistivity

value 4 mA 10 MΩ-cm

Value 20 mA 20 MΩ-cm O

value 4 mA 0 %sat

Value 20 mA 100 %sat pH value 4 mA 2 pH

Value 20 mA 12 pH Temperature value 4 mA 0 °C

Value 20 mA 100 °C Set point 1 measurement a

type off

value 0 Relay 3 set point 1 Set point 2 measurement b

type off

value 0 Relay 4 set point 2

Page 80

Transmitter Multiparameter M400 80

17.3 Error messages

ISM

ChX Disconnected

Chx Change Sensor

Chx Maint Required

Chx Cal Required

Chx CIP Counter Expired

Chx SIP Counter Expired

Chx AutCl Count Expired

pH – Warnings

Warning pH slope > 102%

Warning pH Slope < 90%

Warning pH Zero >7.5 pH

Warning pH Zero < 6.5 pH

Warning pHGls change < 0.3

Warning pHGls change > 3

Warning pHRef change < 0.3

Warning pHRef change > 3

pH – Alarms

Watchdog time-out

Error pH Slope > 103%

Error pH Slope < 80%

Error pH Zero > 8.0 pH

Error pH Zero < 6.0 pH

Error pH Ref Res >150 KΩ

Error pH Ref Res < 2000 Ω

Error pH Gls Res > 2000 MΩ

Error pH Gls Res < 5 M Ω

O2 low – Warnings

Warnings

Warning DO Slope < –460 nA

Warning DO Slope > –250 nA

Warning DO ZeroPt > 0.5 nA

Warning DO ZeroPt < -0.5 nA

O2 low – Alarms

Watchdog time-out

Error Install O2 Jumper

Error DO Slope < –525 nA

Error DO Slope > –220 nA

Error DO ZeroPt > 1.0 nA

Error DO ZeroPt < –1.0 nA

Conductivity – Alarms

Alarms

Watchdog time-out

Cond Cell open

Cond Cell shorted

O2 high – Warnings

Warning DO Slope < –90 nA

Warning DO Slope > –35 nA

Warning DO ZeroPt > 0.3 nA

Warning DO ZeroPt < –0.3 nA

O2 high – Alarms

Watchdog time-out

Error DO Slope < –110 nA

Error DO Slope > –30 nA

Error DO ZeroPt > 0.6 nA

Error DO ZeroPt < –0.6 nA

Page 81

Transmitter Multiparameter M400 81

18 Warranty

METTLER TOLEDO warrants this product to be free from signiﬁcant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and not the result of abuse or misuse within the warranty period, please return by freight pre-paid and amendment will be made without any charge. METTLER TOLEDO’s Customer Service Dept. will determine if the product problem is due to deviations or customer abuse. Out-of-warranty products will be repaired on an exchange basis at cost.

The above warranty is the only warranty made by METTLER TOLEDO and is lieu of all other warranties, expressed or implied, including, without limitation, implied warranties of merchantability and ﬁtness for a particular purpose. METTLER TOLEDO shall not be liable for any loss, claim, expense or damage caused by, contributed to or arising out of the acts or omissions of the Buyer or Third Parties, whether negligent or otherwise. In no event shall METTLER TOLEDO’s liability for any cause of action whatsoever exceed the cost of the item giving rise to the claim, whether based in contract, warranty, indemnity, or tort (including negligence).

Page 82

Transmitter Multiparameter M400 82

19 Buffer tables

M400 transmitters have the ability to do automatic pH buffer recognition. The following tables show different standard buffers that are automatically recognized.

19.1 Mettler-9

Temp (°C) 0 2.03 4.01 7.12 9.52 5 2.02 4.01 7.09 9.45 10 2.01 4.00 7.06 9.38 15 2.00 4.00 7.04 9.32 20 2.00 4.00 7.02 9.26 25 2.00 4.01 7.00 9.21 30 1.99 4.01 6.99 9.16 35 1.99 4.02 6.98 9.11 40 1.98 4.03 6.97 9.06 45 1.98 4.04 6.97 9.03 50 1.98 4.06 6.97 8.99 55 1.98 4.08 6.98 8.96 60 1.98 4.10 6.98 8.93 65 1.99 4.13 6.99 8.90 70 1.99 4.16 7.00 8.88 75 2.00 4.19 7.02 8.85 80 2.00 4.22 7.04 8.83 85 2.00 4.26 7.06 8.81 90 2.00 4.30 7.09 8.79 95 2.00 4.35 7.12 8.77

pH of buffer solutions

19.2 Mettler-10

Temp (°C) 0 2.03 4.01 7.12 10.32 5 2.02 4.01 7.09 10.25 10 2.01 4.00 7.06 10.18 15 2.00 4.00 7.04 10.12 20 2.00 4.00 7.02 10.06 25 2.00 4.01 7.00 10.01 30 1.99 4.01 6.99 9.97 35 1.99 4.02 6.98 9.93 40 1.98 4.03 6.97 9.89 45 1.98 4.04 6.97 9.86 50 1.98 4.06 6.97 9.83 55 1.98 4.08 6.98 9.83 60 1.98 4.10 6.98 9.83 65 1.99 4.13 6.99 9.83 70 1.99 4.16 7.00 9.83 75 2.00 4.19 7.02 9.83 80 2.00 4.22 7.04 9.83 85 2.00 4.26 7.06 9.83 90 2.00 4.30 7.09 9.83 95 2.00 4.35 7.12 9.83

pH of buffer solutions

Page 83

Transmitter Multiparameter M400 83

19.3 NIST Technical Buffers

Temp (°C) 0 1.67 4.00 7.115 10.32 13.42 5 1.67 4.00 7.085 10.25 13.21 10 1.67 4.00 7.06 10.18 13.01 15 1.67 4.00 7.04 10.12 12.80 20 1.675 4.00 7.015 10.06 12.64 25 1.68 4.005 7.00 10.01 12.46 30 1.68 4.015 6.985 9.97 12.30 35 1.69 4.025 6.98 9.93 12.13 40 1.69 4.03 6.975 9.89 11.99 45 1.70 4.045 6.975 9.86 11.84 50 1.705 4.06 6.97 9.83 11.71 55 1.715 4.075 6.97 9.83* 11.57 60 1.72 4.085 6.97 9.83* 11.45 65 1.73 4.10 6.98 9.83* 11.45* 70 1.74 4.13 6.99 9.83* 11.45* 75 1.75 4.14 7.01 9.83* 11.45* 80 1.765 4.16 7.03 9.83* 11.45* 85 1.78 4.18 7.05 9.83* 11.45* 90 1.79 4.21 7.08 9.83* 11.45* 95 1.805 4.23 7.11 9.83* 11.45*

*Extrapolated

pH of buffer solutions

19.4 NIST standard buffers (DIN and JIS 19266: 2000–01)

Temp (°C) 0 5 1.668 4.004 6.950 9.392 10 1.670 4.001 6.922 9.331 15 1.672 4.001 6.900 9.277 20 1.676 4.003 6.880 9.228 25 1.680 4.008 6.865 9.184 30 1.685 4.015 6.853 9.144 35 1.694 4.028 6.841 9.095 40 1.697 4.036 6.837 9.076 45 1.704 4.049 6.834 9.046 50 1.712 4.064 6.833 9.018 55 1.715 4.075 6.834 8.985 60 1.723 4.091 6.836 8.962 70 1.743 4.126 6.845 8.921 80 1.766 4.164 6.859 8.885 90 1.792 4.205 6.877 8.850 95 1.806 4.227 6.886 8.833

NOTE: The pH(S) values of the individual charges of the secondary reference materials are

documented in a certiﬁcate of an accredited laboratory. This certiﬁcate is supplied with the respective buffer materials. Only these pH(S) values shall be used as standard values for the secondary reference buffer materials. Correspondingly, this standard does not include a table with standard pH values for practical use. The table above only provides examples of pH(PS) values for orientation.

pH of buffer solutions

Page 84

Transmitter Multiparameter M400 84

19.5 Hach buffers

Buffer values up to 60 °C as speciﬁed by Bergmann & Beving Process AB.

Temp (°C)

pH of buffer solutions

0 4.00 7.14 10.30 5 4.00 7.10 10.23 10 4.00 7.04 10.11 15 4.00 7.04 10.11 20 4.00 7.02 10.05 25 4.01 7.00 10.00 30 4.01 6.99 9.96 35 4.02 6.98 9.92 40 4.03 6.98 9.88 45 4.05 6.98 9.85 50 4.06 6.98 9.82 55 4.07 6.98 9.79 60 4.09 6.99 9.76 65 4.09* 6.99* 9.76* 70 4.09* 6.99* 9.76* 75 4.09* 6.99* 9.76* 80 4.09* 6.99* 9.76* 85 4.09* 6.99* 9.76* 90 4.09* 6.99* 9.76* 95 4.09* 6.99* 9.76*

*Values complemented

19.6 Ciba (94) buffers

Temp (°C) 0 2.04 4.00 7.10 10.30 5 2.09 4.02 7.08 10.21 10 2.07 4.00 7.05 10.14 15 2.08 4.00 7.02 10.06 20 2.09 4.01 6.98 9.99 25 2.08 4.02 6.98 9.95 30 2.06 4.00 6.96 9.89 35 2.06 4.01 6.95 9.85 40 2.07 4.02 6.94 9.81 45 2.06 4.03 6.93 9.77 50 2.06 4.04 6.93 9.73 55 2.05 4.05 6.91 9.68 60 2.08 4.10 6.93 9.66 65 2.07* 4.10* 6.92* 9.61* 70 2.07 4.11 6.92 9.57 75 2.04* 4.13* 6.92* 9.54* 80 2.02 4.15 6.93 9.52 85 2.03* 4.17* 6.95* 9.47* 90 2.04 4.20 6.97 9.43 95 2.05* 4.22* 6.99* 9.38*

pH of buffer solutions

*Extrapolated

Page 85

Transmitter Multiparameter M400 85

19.7 Merck Titrisole, Riedel-de-Haën Fixanale

Temp (°C)

pH of buffer solutions

0 2.01 4.05 7.13 9.24 12.58 5 2.01 4.05 7.07 9.16 12.41 10 2.01 4.02 7.05 9.11 12.26 15 2.00 4.01 7.02 9.05 12.10 20 2.00 4.00 7.00 9.00 12.00 25 2.00 4.01 6.98 8.95 11.88 30 2.00 4.01 6.98 8.91 11.72 35 2.00 4.01 6.96 8.88 11.67 40 2.00 4.01 6.95 8.85 11.54 45 2.00 4.01 6.95 8.82 11.44 50 2.00 4.00 6.95 8.79 11.33 55 2.00 4.00 6.95 8.76 11.19 60 2.00 4.00 6.96 8.73 11.04 65 2.00 4.00 6.96 8.72 10.97 70 2.01 4.00 6.96 8.70 10.90 75 2.01 4.00 6.96 8.68 10.80 80 2.01 4.00 6.97 8.66 10.70 85 2.01 4.00 6.98 8.65 10.59 90 2.01 4.00 7.00 8.64 10.48 95 2.01 4.00 7.02 8.64 10.37

19.8 WTW buffers

Temp (°C) 0 2.03 4.01 7.12 10.65 5 2.02 4.01 7.09 10.52 10 2.01 4.00 7.06 10.39 15 2.00 4.00 7.04 10.26 20 2.00 4.00 7.02 10.13 25 2.00 4.01 7.00 10.00 30 1.99 4.01 6.99 9.87 35 1.99 4.02 6.98 9.74 40 1.98 4.03 6.97 9.61 45 1.98 4.04 6.97 9.48 50 1.98 4.06 6.97 9.35 55 1.98 4.08 6.98 60 1.98 4.10 6.98 65 1.99 4.13 6.99 70 2.00 4.16 7.00 75 2.00 4.19 7.02 80 2.00 4.22 7.04 85 2.00 4.26 7.06 90 2.00 4.30 7.09 95 2.00 4.35 7.12

pH of buffer solutions

Page 86

Transmitter Multiparameter M400 86

Notes:

Page 87

Transmitter Multiparameter M400 87

Notes:

Page 88

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Mettler-Toledo Kereskedelmi KFT Teve u. 41 HU-1139 Budapest Phone +36 1 288 40 40 Fax +36 1 288 40 50 e-mail mthu@t-online.hu

India

Mettler-Toledo India Private Limited Amar Hill, Saki Vihar Road Powai IN- 400 072 Mumbai Phone +91 22 2803 1111 Fax +91 22 2857 5071 e-mail sales.mtin@mt.com

Italy

Mettler-Toledo S.p.A. Via Vialba 42 I- 20026 Novate Milanese Phone +39 02 333 321 Fax +39 02 356 2973 e-mail customercare.italia@mt.com

Japan

Mettler-Toledo K.K. Process Division 4F Izumikan Sanbancho Bldg. 3-8 Sanbancho Chiyoda-ku JP-102-0075 Tokyo Tel. +81 3 3222 7103 Fax +81 3 3222 7118 e-mail helpdesk.ing.jp@mt.com

Malaysia

Mettler-Toledo (M) Sdn Bhd Bangunan Electroscon Holding, U 1-01 Lot 8 Jalan Astaka U8/ 84 Seksyen U8, Bukit Jelutong MY- 40150 Shah Alam Selangor Phone +60 3 78 44 58 88 Fax +60 3 78 45 87 73 e-mail MT-MY.CustomerSupport@mt.com

Mexico

Mettler-Toledo S.A. de C.V. Pino No. 350, Col. Sta. MA. Insurgentes, Col Atlampa MX- 06430 México D.F. Phone +52 55 55 47 57 00 Fax +52 55 55 41 22 28 e-mail mt.mexico@mt.com

Poland

Mettler-Toledo (Poland) Sp.z.o.o. ul. Poleczki 21 PL- 02-822 Warszawa Phone +48 22 545 06 80 Fax +48 22 545 06 88 e-mail polska@mt.com

Russia

Mettler-Toledo Vostok ZAO Sretenskij Bulvar 6/1 Office 6 RU-101000 Moscow Phone +7 495 651 98 86 Fax +7 495 621 63 53

+7 495 621 78 68

e-mail inforus@mt.com

Singapore

Mettler-Toledo (S) Pte. Ltd. Block 28 Ayer Rajah Crescent #05-01 SG-139959 Singapore Phone +65 6890 00 11 Fax +65 6890 00 12

+65 6890 00 13

e-mail precision@mt.com

Slovakia

Mettler-Toledo s.r.o. Hattalova 12/A SK- 831 03 Bratislava Phone +421 2 4444 12 20-2 Fax +421 2 4444 12 23 e-mail predaj@mt.com

Slovenia

Mettler-Toledo d.o.o. Peske 12 SI-1236 Trzin Phone +386 1 530 80 50 Fax +386 1 562 17 89 e-mail keith.racman@mt.com

South Korea

Mettler-Toledo (Korea) Ltd. Yeil Building 1 & 2 F 124-5, YangJe-Dong SeCho-Ku KR-137-130 Seoul Phone +82 2 3498 3500 Fax +82 2 3498 3555 e-mail Sales_MTKR@mt.com

Spain

Mettler-Toledo S.A.E. C/ Miguel Hernández, 69-71 ES- 08908 L’Hospitalet de Llobregat (Barcelona) Phone +34 93 223 76 00 Fax +34 93 223 76 01 e-mail bcn.centralita@mt.com

Sweden

Mettler-Toledo AB Virkesvägen 10 Box 92161 SE-12008 Stockholm Phone +46 8 702 50 00 Fax +46 8 642 45 62 e-mail info.se@mt.com

Switzerland

Mettler-Toledo (Schweiz) GmbH Im Langacher Postfach CH- 8606 Greifensee Phone +41 44 944 45 45 Fax +41 44 944 45 10 e-mail salesola.ch@mt.com

Thailand

Mettler-Toledo (Thailand) Ltd. 272 Soi Soonvijai 4 Rama 9 Rd., Bangkapi Huay Kwang TH-10320 Bangkok Phone +66 2 723 03 00 Fax +66 2 719 64 79 e-mail MT-TH.CustomerSupport@mt.com

USA/ Canada

Mettler-Toledo Ingold, Inc. 36 Middlesex Turnpike Bedford, MA 01730, USA Phone +1 781 301 8800 Toll free +1 800 352 8763 Fax +1 781 271 0681 e-mail mtprous@mt.com

ingold@mt.com

Mettler-Toledo AG, Process Analytics Im Hackacker 15, CH-8902 Urdorf, Switzerland Tel. +41 44 729 62 11, Fax +41 44 729 66 36