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Operation Manual
Transmitter M300
– pH/Redox, Dissolved Oxygen,
Conductivity/Resistivity, Dissolved Ozone, single channel version
– Cond/Cond dual channel version
– Multiparameter dual channel version for analog sensors
– Multiparameter single and dual channel version for ISM sensors
Transmitter M300
52 121 389
Transmitter M300 2
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Printed in Switzerland
Transmitter Multiparameter M300
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Transmitter M300
Operation Manual
Transmitter M300
3
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
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Transmitter M300
Content
3.3.2.1 Navigating the menu tree _______________________________________________________________ 13
3.3.2.2 Escape _____________________________________________________________________________ 14
3.3.2.3 Enter _______________________________________________________________________________ 14
3.3.2.4 Menu _______________________________________________________________________________ 14
3.3.2.5 Calibration mode _____________________________________________________________________ 14
3.3.2.6 Info mode ___________________________________________________________________________ 14
4.3.4 TB3 and TB4* for 1/2DIN and 1/4DIN versions –
4.3.5 TB3 and TB4* for 1/2DIN and 1/4DIN versions –
4.4.3.1 Example 1 __________________________________________________________________________ 29
4.4.3.2 Example 2 __________________________________________________________________________ 30
4.4.4.1 Example 4 __________________________________________________________________________ 32
4
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Transmitter Multiparameter M300
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Transmitter M300 5
7.3.1.1 Auto mode __________________________________________________________________________ 43
7.3.1.2 Manual mode ________________________________________________________________________ 44
7.5.1.1 Auto Mode __________________________________________________________________________ 46
7.5.1.2 Manual Mode ________________________________________________________________________ 46
7.5.2.1 Auto Mode __________________________________________________________________________ 47
7.5.2.2 Manual Mode ________________________________________________________________________ 47
8.2.2.1 % Rejection measurement ______________________________________________________________ 54
(Power plant applications only) ______________________________________________ 55
8.2.4.2 pH/ORP Parameters ___________________________________________________________________ 58
8.2.4.3 Dissolved Oxygen Parameters ___________________________________________________________ 59
8.6.4 Name ______________________________________________________________________________________ 68
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Transmitter Multiparameter M300
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Transmitter M300 6
11.3.1.1 Resistance __________________________________________________________________________ 81
11.3.1.2 Temperature _________________________________________________________________________ 82
11.3.1.3 Current _____________________________________________________________________________ 83
11.3.1.4 Voltage _____________________________________________________________________________ 83
11.3.1.5 Rg Diagnostic ________________________________________________________________________ 84
11.3.1.6 Rr Diagnostics _______________________________________________________________________ 84
16.2 Electrical specifications for
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Transmitter Multiparameter M300
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Transmitter M300 7
(Single-Channel Instruments) __________________________________________________________________ 105
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 8
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
1 Introduction
Statement of Intended Use – The M300 Multiparameter transmitter is a single- or dual channel online process instrument for measuring various properties of fluids. These include Conductivity/
Resistivity, Dissolved Oxygen, Dissolved Ozone and pH/ORP. It will interface with a variety of different Mettler-Toledo sensors, which connect to the transmitter using cables of varied lengths.
Depending on the type, the transmitter can handle conventional analog sensors or the future oriented ISM (Intelligent Sensor Management) sensors.
A large four line backlit Liquid Crystal Display conveys measuring data and setup information.
The menu structure allows the operator to modify all operational parameters by using keys on the front panel. A menu-lockout feature, with password protection, is available to prevent the unauthorized use of the meter. The M300 Multiparameter transmitter can be configured to use its 2
(4 on dual channel version) analog and/or 4 (6 on dual channel version) relay outputs for process control.
The M300 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).
This manual applies for all available M300 transmitters as follows:
– Single parameter and single channel version for pH/ORP, dissolved Oxygen, Conductivity/
Resistivity, and dissolved Ozone
– Mulitparameter dual channel version for analog sensors
– Mulitparameter single and dual channel version for ISM sensors
– Dual channel Cond/Cond version for analog sensors
M300 parameter fit guide
M300 Thornton models
Designation
M300 ISM 1-channel 1/4DIN
M300 ISM 1-channel 1/2DIN
M300 ISM 2-channel 1/4DIN
Order no.
58 000 301
58 000 311
58 000 302
Analog Sensors
M300 ISM 2-channel 1/2DIN
M300 pH 1-channel 1/4DIN
58 000 312
58 001 303 pH
M300 pH 1-channel 1/2DIN 58 001 313 pH
M300 Cond 1-channel 1/4DIN 58 002 301 Cond
M300 Cond 1-channel 1/2DIN 58 002 311 Cond
M300 Cond 2-channel 1/4DIN 58 001 304 Cond
M300 Cond 2-channel 1/2DIN 58 001 314 Cond
M300 Multi 2-channel 1/4DIN 58 001 306 pH, Cond, DO ppm*,
DO ppb*, O3*
M300 Multi 2-channel 1/2DIN 58 001 316 pH, Cond, DO ppm*,
DO ppb*, O3*
* THORNTON sensors
ISM Sensors pH, DO*, Cond pH, DO*, Cond pH, DO*, Cond pH, DO*, Cond
9
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Transmitter M300 10
M300 Ingold models
Designation
M300 ISM 1-channel 1/4DIN
M300 ISM 1-channel 1/2DIN
M300 ISM 2-channel 1/4DIN
Order no.
52 121 354
52 121 355
52 121 356
Analog Sensors
M300 ISM 2-channel 1/2DIN
M300 pH 1-channel 1/4DIN
52 121 357
52 121 286 pH
M300 pH 1-channel 1/2DIN 52 121 289 pH
M300 Cond 1-channel 1/4DIN 52 121 288 Cond
M300 Cond 1-channel 1/2DIN 52 121 291 Cond
M300 O2 1-channel 1/4DIN
M300 O2 1-channel 1/2DIN
M300 Multi 2-channel 1/4DIN
M300 Multi 2-channel 1/2DIN
52 121 287 DO**
52 121 290 DO**
52 121 292
52 121 293 pH, Cond, DO** pH, Cond, DO**
** INGOLD sensors
ISM Sensors pH, DO**, Cond 4-e pH, DO**, Cond 4-e pH, DO**, Cond 4-e pH, DO**, Cond 4-e
The print screen images in this manual have a general explaining character and can differ from the real display in your transmitter.
This description corresponds to the firmware release, version 1.4 of the M300 ISM transmitter
(resp. version 1.1 of THORNTON M300 ISM transmitter) and version 1.6 for all other M300 transmitters. Changes are taking place constantly, without prior notification
2 Safety instructions
This manual includes safety information with the following designations and formats.
2.1 Definition of equipment and documentation symbols and designations
a
WARNING: POTENTIAL FOR PERSONAL INJURY.
a
CAUTION: possible instrument damage or malfunction.
h
NOTE: Important operating information.
a
On the transmitter or in this manual text indicates: Caution and/or other possible hazard including risk of electric shock (refer to accompanying documents).
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h h h
Transmitter M300 11
The following is a list of general safety instructions and warnings. Failure to adhere to these instructions can result in damage to the equipment and/or personal injury to the operator.
– The M300 Transmitter should be installed and operated only by personnel familiar with the transmitter and who are qualified for such work.
– The M300 Transmitter must only be operated under the specified operating conditions
(see section 16).
– Repair of the M300 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 M300 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 M300 transmitter relays will always de-energize on loss of 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.
NOTE! PROCESS UPSETS: Because process and safety conditions may depend on consistent operation of this transmitter, provide appropriate means to maintain operation during sensor cleaning, replacement or sensor or instrument calibration.
NOTE: This is a 4-wire-product with an active 4–20 mA analog output.
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 M300
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Transmitter M300
3 Unit overview
M300 models are available in both a 1/4DIN and 1/2DIN case size. The 1/4DIN is a panelmount only design and the 1/2DIN models provide an integral IP65 housing for wall-, or pipemount.
12
3.1 Overview 1/4DIN
1
4.01
[102]
8 M300
4
3
5
4.01
[102]
6
7
ESC
Menu Cal
2
Info Enter
1: Hard Polycarbonate case
2: Five Tactile-Feedback Navigation Keys
3: Four-line LCD Display
4: Power Supply Terminals
3.2
1
Overview 1/2DIN
5.90
[150]
M300
3
5.90
[150]
Menu
ESC
Cal
2
Info Enter
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
5
7
6
8
4
5: USB Interface Port
6: Relay Output Terminals
7: Analog Output/Digital Input Terminals
8: Sensor Input Terminals
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Transmitter Multiparameter M300
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Transmitter M300
3.3 Control/Navigation Keys
3.3.1 Menu Structure
Below is the structure of the M300 menu tree:
Quick Setup
Channel Setup
Configure
Measurement
System
Set Language
PID Setup
PID A/M
Menu
Service
Measurement
Mode M300
Cal
Messages
Info
ISM Sensor
Info*
Calibration Data
Model/Software
Revision
Diagnostics
Analog Outputs Analog Outputs USB Tune Parameters Calibrate
Set Points Set Points
Alarm/Clean
Passwords
Set/Clear
Lockout
Reset
Mode
PID
Display Setup
Tech Service
Display
Hold Outputs
* on ISM version only
13 h
3.3.2 Navigation keys
ESC
Menu Cal Info Enter
3.3.2.1 Navigating the menu tree
Enter the desired main Menu branch with the b c
or m
keys. Use the m
and
.
keys to navigate through the selected Menu branch.
NOTE: In order to back up one menu page, without escaping to the measurement mode, move the cursor under the UP Arrow character ( u ) at the bottom right of the display screen and press [Enter].
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Transmitter Multiparameter M300
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Transmitter M300 h
3.3.2.2 Escape
Press the b and c key simultaneously (escape) to return to the Measurement mode.
3.3.2.3 Enter
Use the e key to confirm action or selections.
3.3.2.4 Menu
Press the b key to access the main Menu.
14
3.3.2.5 Calibration mode
Press the c key to enter Calibration Mode.
3.3.2.6 Info mode
Press the .
key to enter Info Mode
3.3.3 Navigation of data entry fields
Use the c key to navigate forward or the data entry fields of the display.
b key to navigate backwards within the changeable
3.3.4 Entry of data values, selection of data entry options
Use the m 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 c or b key to return to the primary field and the m or
.
key to toggle between all configuration options before entering to the next display screen.
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Transmitter Multiparameter M300
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Transmitter M300 h h
3.3.5 Navigation with
u
in Display
If a u is displayed on the bottom right hand corner of the display, you can use the c or the b 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.
15
3.3.6 ”Save changes” dialog
Three options are possible for the ”Save changes” dialog: Yes & Exit (Save changes and exit to measuring mode), ”Yes & u ” (Save changes and go back one screen) and ”No & Exit” (Don’t save changes and exit to measuring mode). The ”Yes & u ” option is very useful if you want to continue configuring without having to re-enter the menu.
3.3.7 Security Passwords
The M300 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.
3.4 Display
NOTE: In the event of an alarm or other error condition the M300 Transmitter will display a flashing a in the upper right corner of the display. This symbol will remain until the condition that caused it has been cleared.
NOTE: During calibrations, clean, Digital In with Analog Output/Relay/USB in Hold state, a flashing H will appear in the upper left corner of the display. 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.
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Transmitter Multiparameter M300
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Transmitter M300
4 Installation instruction
16
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 –
1/4DIN models
1/4DIN Model transmitters are designed for panel-mount installation only. Each transmitter is supplied with mounting hardware to provide fast and simple installation to a flat panel or flat enclosure door. To insure a good seal and maintain IP integrity of installation, the panel or door must be flat and have a smooth finish. Hardware consists of:
2 snap-on Mounting brackets
1 mounting gasket seal
Transmitter dimensions and mounting are shown in the figures below.
3.62
[92
–0
+0.02
+0.5
]
3.62
[92
+0.02
+0.5
–0
]
PANEL CUT-OUT
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Transmitter Multiparameter M300
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MOUNTING
BRACKET
2 PLACES
Transmitter M300
4.1.2 Installation procedure – 1/4DIN models
– Make cutout in panel (see dimensions cutout drawing).
– Be sure surface surrounding cutout is clean, smooth and free of burrs.
– Slide face gasket (supplied with transmitter) around transmitter from the back of the unit.
– Place transmitter into cutout hole. Be sure there are no gaps between the transmitter and panel surface.
– Place the two mounting brackets on either side of the transmitter as shown.
– While holding transmitter firmly into the cutout hole, push the mounting brackets toward the backside of panel.
– Once secure, use a screwdriver to tighten the brackets against the panel. In order to provide
IP65 environmental enclosure rating, the two clamps provided shall be securely tightened to create an adequate seal between the panel enclosure and M300 front face.
– Face gasket will compress between transmitter and panel.
a
CAUTION: Do not over tighten brackets.
4.33
[110]
4.33
[110]
4.01
[102]
3.55
[90] 4.01
[102]
3.55
[90]
5
4
3
2
1
9
8
7
6
3.55
[90]
Power
USB
Fuse
1 2 3 4 5 6 7
1 2 3 4 5 6 7
5
4
3
2
1
9
8
7
6
9
8
7
6
5
4
3
2
1
4.01
[102]
4.01
[102]
3.55
[90]
Power Fuse
1 2 3 4 5 6 7 5
4
3
2
1
9
8
7
6
USB 1 2 3 4 5 6 7
17
4.01
[102]
MAX. 0.118
[3]
FLAT GASKET MOUNTING
BRACKET
2 PLACES
4.01
[102]
4.96
[126]
4.92
[125]
MAX. 0.118
[3]
FLAT GASKET
4.96
[126]
4.92
[125] 4.33
[110]
1.77
[45]
3.54
[90]
4.33
[110]
1.77
[45]
3.54
[90]
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Transmitter Multiparameter M300
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Transmitter M300 18
4.1.3 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 4.1.4.
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.
5.39 +0.02
–0.00
[137 ]
5.39 +0.02
–0.00
[137 +0.5
–0.0
]
PANEL CUT-OUT
Optional hardware accessories are available that allow for panel- or pipe-mount.
Refer to Section 15 “Accessories and Spare Parts” for ordering information.
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Transmitter Multiparameter M300
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Transmitter M300 19
4.1.4 Installation procedure – 1/2DIN models
General:
– Orient the transmitter so that the cable grips face downward.
– Wiring routed through the cable grips shall be suitable for use in wet locations.
– In order to provide IP65 enclosure ratings, all cable glands must be in place. Each cable gland must be filled using a cable, or suitable Cable Gland Hole Seal.
For Wall Mount:
– Remove rear cover from front housing.
– Start by unscrewing the four screws located on the face of the transmitter, in each corner.
This allows the front cover to swing away from the rear housing.
– Remove the hinge-pin by squeezing the pin from each end.
This allows the front housing to be removed from the rear housing.
– Mount rear housing to wall. Secure mounting kit to the M300 according to the supplied instructions. Attach to wall using appropriate mounting hardware for wall surface. Be sure it is level and securely fastened and the installation adheres to any and all clearance dimensions required for transmitter service and maintenance. Orient the transmitter so that the cable grips are facing downward.
– Replace the front housing to the rear housing. Securely tighten the rear-cover screws to ensure that IP65 enclosure environmental rating is provided. The unit is ready to be wired.
For Pipe Mount:
– Use only manufacturer-supplied components for pipe-mounting the M300 transmitter and install per the supplied instructions. See section 15 for ordering information.
4.1.5 Assembly – 1/2DIN version
1: 3 Pg 13.5 cable glands
2: 2 plastic plugs
3: 4 screws
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1
2
3
Transmitter Multiparameter M300
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Transmitter M300
4.1.6 1/2DIN version – Dimension drawings
150 mm/5.9"
116 mm/4.57"
29 mm
1.14"
20
42 mm
1.65"
84 mm
3.31"
35 mm/
1.38"
90 mm/3.54"
80 mm/3.15"
29 mm
1.14"
137 mm (+ 0,5 mm/– 0,0 mm)
5.39" (+ 0.02"/– 0.00")
4.1.7 1/2DIN version – Pipe mounting
40 ... 60 mm
1.57... 2.36
"
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Transmitter Multiparameter M300
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Transmitter M300
4.1.8 1/4DIN version – Dimension drawings
110 mm / 4.33"
102 mm / 4.02"
90 mm / 3.54"
TB4 TB3
Fuse
1 2
Power
92 mm ± 0.5 mm
3.62" ± 0.02"
USB
TB1A
TB1B
TB2
21
102 mm / 4.02"
110 mm / 4.33" 90 mm / 3.54"
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Transmitter Multiparameter M300
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Transmitter M300
4.2 Connection of power supply
All connections to the transmitter are made on the rear panel of all models.
a
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 M300 models is provided for power connection. All M300 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.
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 mm 2 (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 d symbol.
22
4.2.1 1/4DIN housing (panel mount)
2
1
1: Connection of power supply
2: Terminal for sensors
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Transmitter Multiparameter M300
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Transmitter M300
4.2.2 1/2DIN housing (wall mount)
23
1: Connection of power supply
2: Terminal for sensors
2
1
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Transmitter M300
4.3 Connector PIN definition
24
4.3.1 TB1 and TB2 for 1/2DIN and 1/4DIN versions
1 ⁄
4
DIN
Power connections are labeled – N for Neutral and +L for Line, for 100 to 240 VAC or 20 – 30 VDC.
TB2 for
1 AO1+
1 ⁄
4
DIN
2 AO1–/AO2–
3 AO2+
4 AO3+*
5 AO3–/AO4–*
6 AO4+*
7 DI1+
8 DI1–/DI2–*
9 DI2+*
TB1A
1
1
7
7
TB4
9
1
TB1B
TB3
9
TB2
1
1
9
1 ⁄
2
DIN
TB2 for
1 AO1+
1 ⁄
2
DIN
2 AO1–/AO2–
3 AO2+
4 AO3+*
5 AO3–/AO4–*
6 AO4+*
7 DI1+
8 DI1–/DI2–*
9 DI2+*
TB1 1
1
TB2
9 1
14
TB3
9 1
TB4
9
TB1A for 1 ⁄
4
1 NO2
2 COM2
3 NC2
4 NO6*
5 COM6*
6 NO4
7 COM4
DIN
* Dual channel only
TB1B for 1 ⁄
4
1 NO1
2 COM1
3 NC1
4 NC5*
5 COM5*
6 NO3
7 COM3
DIN
1 NO1
2 COM1
3 NC1
4 NO2
5 COM2
6 NC2
7 COM5*
TB1 for 1 ⁄
2
DIN
8 NC5*
9 COM6*
10 NO6*
11 NO3
12 COM3
13 NO4
14 COM4
NO: normally open (contact open if un-actuated)
NC: normally closed (contact closed if un-actuated)
AO: Analog Output
DI: Digital Input
4.3.2 TB3 and TB4* for 1/2DIN and 1/4DIN versions –
Conductivity Sensors
TB 3 provides access to channel A signal inputs, TB4* provides access to channel B signal inputs.
Conductivity sensors use 58 080 20X or 58 080 25X series cables.
5
6
7
8
9
Pin no.
1
2
3
4
* Only on dual channel version
** Transparent not connected.
Sensor wire Color** white white / blue blue black
– bare shield red green
–
Function
Cnd inner 1
Cnd outer 1
Cnd inner 2
Cnd outer 2 / Shield not used
RTD ret / GND
RTD sense
RTD
+5V
Terminal 4 and 6 are internally connected, either terminal can be used to connect a wire.
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Transmitter Multiparameter M300
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Transmitter M300 h h
4.3.3 TB3 and TB4* for 1/2DIN and 1/4DIN versions – pH/ORP Sensors
pH/ORP sensors use 52 300 1XX series VP cables, or 10 001 XX02 series AS9 cables
(ORP only).
7
8
5
6
Pin no.
1
2
3**
4**
9
Sensor wire Color
Coax inner/transparent
Coax shield/red green/yellow, blue
– white green
– grey (no connection)
* Only on dual channel version.
Function
Glass not used
Reference
Solution GND/Shield not used
RTD ret/GND
RTD sense
RTD
+5V
Terminal 4 and 6 are internally connected, either terminal can be used to connect a wire.
NOTE: ** Install Jumper 3 to 4 when used without Solution Ground.
NOTE: For sensors with Pt100 temperature probe, the Pt100 adapter is required.
The Pt100 adapter is enclosed in the package of each transmitter.
25 h
4.3.4 TB3 and TB4* for 1/2DIN and 1/4DIN versions –
Dissolved Oxygen/Dissolved Ozone Sensors
(except 58 037 221)
These sensors use 52 300 1XX series VP cables.
8
9
6
7
Pin no.
1**
2
3**
4**
5
Blue wire not used.
* Only on dual channel version.
Sensor wire Color
–
Coax Shield/red
– green/yellow
Coax Inner/transparent white, grey
– green
–
Function not used
Anode not used
Shield/GND
Cathode
Temperature, Guard not used
Temperature
+5V
Terminal 4 and 6 are internally connected, either terminal can be used to connect a wire.
NOTE: ** Install Jumper (supplied) 1 to 3 to 4 when using Thornton Dissolved Oxygen and
Ozone Sensors.
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.3.5 TB3 and TB4* for 1/2DIN and 1/4DIN versions –
Dissolved Oxygen Sensor 58 037 221 only
(Thornton Models only)
This sensor uses 58 080 25X series cables.
7
8
5
6
2
3
Pin no.
1
4
9
* Only on dual channel version.
Sensor wire Color white white/blue,
– black, bare shield
–
Transparent
Red
Green
Blue
Function
Signal
Range
Shield, Ground
Ground
Temperature
Temperature
+5V
Terminal 4 and 6 are internally connected, either terminal can be used to connect a wire.
26
4.3.6 TB3/TB4* –
ISM (digital) Sensors for pH, Conductivity and
Dissolved Oxygen
The wiring of the digital 9 terminal connectors is:
8
9
6
7
4
5
2
3
Pin no.
1
* Only on dual channel version
** Bare wire not connected
*** For Thornton models only
Function
24 VDC
GND (24 VDC)
1-Wire
GND (5 VDC)
–
GND (5 VDC)
RS485-B
RS485-A
5 VDC
–
–
–
– pH, Oxygen, Cond 4-e
Color
–
– transparent (cable core) red (shield)
–
–
–
–
–
Cond 2-e***
Color**
– white black red blue
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4 Connection of Analogue Sensor for pH/ORP
4.4.1 Connecting the Sensor to the VP Cable
27
A
B
C
F
D
E
A B C D E F S h NOTE: Cable lengths > 20 m can worsen the response during pH measurement. Be sure to observe the sensor instruction manual.
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Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4.2 VP Cable Assignment
A transparent
B red
Glass electrode
Ref. electrode
C gray
D blue
E white
T3
Solution ground
T1
F green
S green/yellow
T2
Outer shield
C = 220 nF
T1/T2: Temperature probe for 2-wire connection
T3: Additional connection for temperature probe (3-wire connection)
28
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4.3 Typical Wiring (Using TB3/TB4)
4.4.3.1 Example 1
pH measurement without Solution Ground.
9
8
7
6
5
2
1
4
3
Jumper
Cable
Temperature probe
29
Pt100 Adapter wiring diagramm for TB3/4
Change M300 setting to Pt100 under
Configuration/Measurement/Temperature Source
2-wire
Pt100
Adapter
9
8
7
4
3
2
1
6
5 h h
Temperature probe
3-wire
Pt100
Adapter
Combination pH electrode
Temperature probe
NOTE: Jumper Terminals 3 and 4.
NOTE: Pt100 adapter required (enclosed) for sensors with Pt100 temperature probe.
For wiring details see page 24.
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
9
8
7
6
5
2
1
4
3
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4.3.2 Example 2
pH measurement with Solution Ground
4
3
2
1
6
5
9
8
7
Cable h h
Temperature probe
Combination pH electrode with RTD and SG
NOTE: Wire colors only valid for connection with VP cable, grey not connected.
NOTE: Pt100 adapter required (enclosed) for sensors with Pt100 temperature probe.
For wiring details see page 24.
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
30
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4.4 Example 3
ORP (redox) measurement (temperature optional).
9
8
7
6
5
4
3
2
1
Jumper
Cable
31
Temperature probe
ORP electrode
h h
NOTE: Jumper Terminal 3 and 4.
NOTE: Pt100 adapter required (enclosed) for sensors with Pt100 temperature probe.
For wiring details see page 24.
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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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.4.4.1 Example 4
ORP measurement with pH Solution ground electrode (e.g. InPro 3250 SG, InPro 4800 SG).
32
7
6
5
9
8
4
3
2
Jumper
1
Not connected
Cable
h h
Temperature probe
Combination pH electrode with RTD and SG
NOTE: Jumper Terminal 3 and 4.
NOTE: Pt100 adapter required (enclosed) for sensors with Pt100 temperature probe.
For wiring details see page 24.
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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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.5 Connection of Analogue Sensor for
Dissolved Oxygen/Dissolved Ozone
(except 58 037 221)
4.5.1 Connecting the Sensor to the VP Cable
33
A
B
C
F
D
E
A B C D E F S h NOTE: Be sure to observe the sensor instruction manual.
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.5.2 Typical Wiring using TB3/TB4
9
8
7
6
5
4
3
2
1
34 h NOTE: Wire colors only valid for connection with VP cable, blue not connected.
M300 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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Transmitter Multiparameter M300
52 121 389
Transmitter M300 35
4.6 Connection of Analogue Sensor for
Dissolved Oxygen 58 037 221
This sensor consists of a Thornton Long Life dissolved oxygen probe that comes directly wired to a preamplifier box. The preamplifier connects to the M300 using a 58 080 25X series cable.
Use the connections shown in the last table of section 4.3 and follow the additional instructions supplied with the sensor.
4.7 Connection of ISM Sensor
InPro 3250i/SG/120
Art.-Nr. 52 005 373
4.7.1 Connection of ISM Sensor for pH, Cond 4-e and
Dissolved Oxygen
A B h NOTE: Connect the Sensor and screw the plug head clockwise (hand tight).
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
4.7.2 AK9 Cable Assignment
A: 1-wire data (transparent)
B: Ground/shield
4.7.3 Connection of ISM Sensor for Cond 2-e
(Thornton Models only)
36
D
A
B
C
4.7.4 Cable Assignment of ISM Sensor for Cond 2-e
(Thornton Models only)
A: GND (white)
B: Data RS485-B (black)
C: Data RS485-A (red)
D: 5 VDC (blue)
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
5 Placing transmitter in, or out, of service
5.1 Placing transmitter in service
a
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.
37
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 h h h
38
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 “Passwords”).
NOTE: Please find the complete description of the Quick Setup routine described in the separate booklet ”Quick Setup Guide for Transmitter M300” enclosed in the box.
NOTE: Please do not use Quick Setup menu after configuration of the transmitter, because some of the parameters i.e. analog output configuration will may be reseted.
NOTE: Refer to section 3.3 “Control/Navigation Keys” for information on menu navigation.
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 h
39
7
(PATH: Cal)
Sensor Calibration
The calibration key c allows the user one-touch access to Sensor calibration and verification features. Thornton models also allow access to Meter and Analog Output calibration (see chapter 11.3.1 and 11.3.2). All other models also allow access to Analog Output and Meter calibration if the access has been previously unlocked (see chapter 11.3.3 ”Calibrate Unlock”).
NOTE: During Calibration, a flashing ”H” in the upper left corner of the display indicates a calibration is in process with a Hold condition active. (The hold output function need to be activated.) See also chapter 3.3 “Display”
7.1 Enter Calibration Mode
While in Measurement mode press the security code, press the m or .
c key. If the display prompts you to enter the calibration
key to set the calibration security mode, then press the [EN-
TER] key to confirm the calibration security code.
For dual-channel devices: Using the the channel to be calibrated. Then use the m or .
key on the ”Channel A” field let you change the c key to move to the calibration field.
Press the are: m or .
key to select the type of calibration desired. The choices for each sensor type
Conductivity = Conductivity, Resistivity, Temperature*, Edit*, Verify
Oxygen** = Oxygen, Temperature*, Edit*, Verify
Ozone** = Ozone, Temperature*, Edit*, Verify pH = pH, mV, Temperature*, Edit pH*, Edit mV, Verify, ORP***
Press [ENTER].
* not on ISM version
** for Thornton transmitters (p/n 58 001 316 and 58 001 306), a jumper is required between
terminal 1, 3 and 4 on TB3 and/or TB4.
*** only with ISM sensors
After every successful calibration, the following options are available:
Calibrate: Calibration values will be overtaken und used for the measurement. Additionally, the data will be stored in the sensor*.
Abort: Calibration values will be discarded.
* only available with ISM sensors
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 h h
40
7.2 Conductivity/Resistivity Calibration
This feature provides the ability to perform a one-point, two-point or process Conductivity resp.
Resistivity ”Sensor” calibration for two- or four-electrode sensors. The procedure described below works for both types of calibrations. There is no reason to perform a two-point calibration on a
2-electrode conductivity sensor. It is also not practical to calibrate conducitivity sensors using
(low conductivity) reference solutions. It is recommended that conducitivity sensors be sent back to the factory for calibration. Consult factory for assistance.
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.
NOTE: For measuring tasks the temperature compensation for the application as defined at the menu Resitivity (resp. for M300 dual channel the menu Comp/pH/O2) will be considered and not the temperature compensation selected thru the calibration procedure (see also chapter
8.2.4.1 “Conductivity/Resistivity/ Temperature Compensation“; PATH: Menu/Configure/Measurement/Resitivity).
Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode”.
When configuring Thornton model transmitters, after selecting the desired sensor calibration and pressing [ENTER], the next screen will ask to select the type of temperature compensation mode desired during the calibration process. The choices are ”None”, ”Standard”, ”Light 84”,
”Std 75 ºC”, ”Lin 20°C = 02.0%/ºC” (user selectable value), ”Lin 25°C = 02.0%/ºC” (user selectable value), ”Glycol.5”, ”Glycol1”, ”Alcohol” and “Nat H2O”.
All other models provide the options ”Standard”, ”Lin 20°C = 02.0%/ºC” (user selectable value), and ”Lin 25°C = 02.0%/ºC” (user selectable value) as Compensation mode thru the calibration.
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.
Lin 25°C compensation adjusts the reading by a factor expressed as ”% per °C” deviation from 25 °C. The factor can be modified.
Lin 20°C compensation adjusts the reading by a factor expressed as ”% per °C” deviation from 20 °C. The factor can be modified.
Choose the compensation mode, modify the factor where appropriate and press [ENTER]
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Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300 41
7.2.1 One-point Sensor Calibration
(Display reflects typical Sensor calibration)
Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode” and choose one of the compensation modes (see section 7.2 “Conductivity/Resistivity Calibration”).
Select 1 point Calibration and press [ENTER]. With conductitivty sensors a one-point calibration is always performed as a slope calibraton.
Place the electrode into the reference solution.
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.
Select Yes to save the calibration values and the Successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.2.2 Two-point Sensor Calibration
(4-electrode sensors only)
Enter Conductivity Sensor Calibration mode as described in section 7.1 Enter Calibration Mode and choose one of the compensation modes (see section 7.2 “Conductivity/Resistivity Calibration”).
Select 2 point Calibration and press [ENTER].
Place the electrode into the first reference solution.
CAUTION: Rinse sensors with a high-purity water solution between calibration points to prevent contamination of the reference solutions.
Enter the Value 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.
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 42
After the calibration the Multiplier or slope calibration factor ”M” and the Adder or offset calibration factor ”A” are displayed.
Select Yes to save the calibration values and the Successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.2.3 Process Calibration
Enter Conductivity Sensor Calibration mode as described in section 7.1 “Enter Calibration Mode” and choose one of the compensation modes (see section 7.2 “Conductivity/Resistivity Calibration”).
Select Process Calibration and press [ENTER]. With conductitivty sensors a process calibration is always performed as a slope calibraton.
Take a sample and press the [ENTER] key again to store the current measuring value.
During the ongoing calibration process, the letter of the channel, which is concerned by the calibration, ”A” or “B” is blinking in the display.
After determining the conductivity value of the sample, press the [CAL] key again to proceed with the calibration.
Enter the conductivity value of the sample, then press the [ENTER] key to start the calculation of calibration results.
After the calibration the Multiplier or slope calibration factor ”M” and the Adder or offset calibration factor ”A” are displayed.
Select Yes to save the calibration values and the Successful Calibration is confirmed on the display.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
7.3 Oxygen Calibration
Dissolved Oxygen calibration is performed as either a one-point or process calibration.
43
7.3.1 One-Point Sensor Calibration
Before air calibration, for highest accuracy, enter the barometric pressure and relative humidity as in section 8.2.4.3 “Dissolved Oxygen Parameters” described
Enter Oxygen Calibration mode as described in section 7.1 “Enter Calibration Mode”.
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.
Select 1 point followed by either Slope or ZeroPt as the calibration type. Press [ENTER].
h
Place the sensor in the calibration gas (e.g. air) resp. solution. Press [ENTER].
7.3.1.1 Auto mode
NOTE: For a zero point calibration the Auto mode is not available. If Auto mode has been configured (see section 8.2.4.3 “Dissolved Oxygen Parameters”) and an offset calibration will be executed, the transmitter will perform the calibration in Manual mode.
Enter the value for Point 1 including a decimal point and units. The value in the second text line is the value being measured by the transmitter and sensor in the units selected by the user.
As soon as the stabilization criteria have been fulfilled the display changes. The display shows the calibration result for slope ”S” and offset value ”Z”.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
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Transmitter Multiparameter M300
52 121 389
Transmitter M300 44
7.3.1.2 Manual mode
Enter the value for Point 1 including a decimal point and units. The value in the second text line is the value being measured by the transmitter and sensor in the units selected by the user.
Press [ENTER] when this value is stable to perform the calibration.
After the calibration the slope calibration factor S and the offset calibration factor Z are displayed.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.3.2 Process Calibration
Enter Oxygen Calibration mode as described in section 7.1 “Enter Calibration Mode”.
Select Process followed by either Slope or ZeroPt as the calibration type. Press [ENTER]
Take a sample and press the [ENTER] key again to store the current measuring value. To show the ongoing Calibration Process, A or B (depending on the channel) is displayed in the top left hand corner.
After determining the O
2 bration.
Value of the Sample press the [CAL] key again to proceed with the cali-
Enter the O
2
value of the sample then press the [ENTER] key to start calibration.
After the calibration the slope calibration factor S and the offset calibration factor Z are displayed.
Select Yes to save the new calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor. The A resp. B in the top left hand corner disappears after 20 seconds.
7.4 Ozone Calibration (Thornton Models only)
Dissolved Ozone calibration is performed as a 1 point calibration and must be performed quickly because ozone decays rapidly into oxygen, especially at warm temperatures.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300 45
7.4.1 One-Point Sensor Calibration
Enter Ozone Calibration mode as described in section 7.1 “Enter Calibration Mode” and select
Ozone.
Ozone sensor calibration is always either a one point Comparison (Slope) or a Zero (Offset) calibration. A one point slope calibration is always obtained from a comparison instrument or colorimetric test kit and a one point offset calibration is done in air or in Ozone-free water.
Select 1 point followed by either Slope or ZeroPt 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 and the offset calibration factor Z are displayed.
h
Select Yes to save the calibration values and the successful Calibration is confirmed on the display.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.5 pH Calibration
For pH sensors, the M300 transmitter features one-point, two-point (Auto or Manual mode) or process calibration with 9 preset buffer sets or manual buffer entry. Buffer values refer to
25 °C. To calibrate the instrument with automatic buffer recognition, you need a standard pH buffer solution that matches one of these values (see section 8.2.4.2 ”pH Parameters” for configuring modes and selecting buffer sets). Please select the correct buffer table before using automatic calibration (see chapter 20 “Buffer tables”).
NOTE: Only buffer table 20.2.1 Mettler-pH/pNa is available for dual membrane pH electrodes
(pH/pNa)
Enter pH Calibration mode as described in section 7.1 “Enter Calibration Mode”.
7.5.1 One Point Calibration
Select 1 point Calibration. With pH sensors a one point calibration is always performed as a offset calibraton.
Depending on the parameterized Drift control (see chapter 8.2.4.2 “pH Parameters”) one of the two following modes is active.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
7.5.1.1 Auto Mode
Place the electrode in the buffer solution and press the [ENTER] key to start the calibration.
46
The display shows the buffer the transmitter has recognized (Point 1) and the measured value.
As soon as the stabilisation criteria have been fulfilled, the display changes to show the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.5.1.2 Manual Mode
Place the electrode in the buffer solution. The display shows the buffer the transmitter has recognized (Point 1) and the measured value. Press [ENTER] to proceed.
The display shows now the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.5.2 Two Point Calibration
Select 2 point Calibration.
Depending on the parameterized Drift control (see chapter 8.2.4.2 “pH Parameters”) one of the two following modes is active.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
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Transmitter Multiparameter M300
52 121 389
Transmitter M300
7.5.2.1 Auto Mode
Place the electrode in the buffer solution and press the [ENTER] key to start the calibration.
47
The display shows the buffer the transmitter has recognized (Point 1) and the measured value.
As soon as the stabilisation criteria have been fulfilled, the display changes and prompts you to place the electrode in the second buffer.
Place the electrode in the second buffer solution and press the [ENTER] key to go on with the calibration.
The display shows the second buffer the transmitter has recognized (Point 2) and the measured value.
As soon as the stabilisation criteria have been fulfilled, the display changes to show the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.5.2.2 Manual Mode
Place the electrode in the first buffer solution. The display shows the buffer the transmitter has recognized (Point 1) and the measured value. Press [ENTER] to proceed.
Place the transmitter in the second buffer solution. The display shows the buffer the transmitter has recognized (Point 2) and the measured value. Press [ENTER] to proceed.
The display shows the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
7.5.3 Process Calibration
Select Process Calibration. At pH sensors a process calibration is always performed as a offset calibraton.
48
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 displayed in the top left hand corner.
After determining the pH Value of the Sample, press the [CAL] key again to proceed with the calibration.
Enter the pH value of the sample then press the [ENTER] key to start the calculation of the calibration results.
After the calibration the slope calibration factor S and the offset calibration factor Z are displayed.
Select Yes to save the new calibration values and the successful Calibration is confirmed on the display. If an ISM sensor is connected, the calibration data will be stored in the sensor. The A resp. B in the top left hand corner disappears after 20 seconds.
7.5.4 mV Calibration (not on ISM Version)
Enter mV Calibration mode as described in section 7.1 “Enter Calibration Mode”.
Enter the value for Point 1. The offset calibration factor is calculated by using the value of Point1 instead of the measured value (line 4, mV = ....) and is displayed on the next screen.
Z is the newly calculated offset calibration factor. The slope calibration factor S is always 1 and does not enter the calculation.
Select Yes to save the new calibration values and the successful Calibration is confirmed on the display.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
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Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
7.5.5 ORP Calibration (only on ISM Version)
In case that an pH sensor with solution ground, based on the ISM technology is connected to the transmitter, the M300 ISM give the option to make in addition an ORP calibration.
Enter ORP calibration mode as described in section 7.1 “Enter Calibration Mode”.
49
Enter Point 1. In addition the actual ORP is displayed.
Press [ENTER] to proceed.
The display shows the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the new calibration values and the successful Calibration is confirmed on the display. The calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.6 Sensor Temperature Calibration (not on ISM Version)
Enter Calibration Mode as described in section 7.1 “Enter Calibration Mode” and select Temperature.
7.6.1 One-Point Sensor Temperature Calibration
(not on ISM Version)
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].
The newly calculated value – either M or A – is displayed. Select Yes to save the new calibration values and the successful Calibration is confirmed on the display.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
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7.6.2 Two-Point Sensor Temperature Calibration
(not on ISM version)
Select 2 point as calibration Type.
50 h
Enter the value for Point 1 and press [ENTER].
Enter the value for Point 2 and press [ENTER].
The newly calculated values M and A are displayed. Select Yes and press [ENTER] to save the new calibration values and the successful Calibration is confirmed on the display.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.7 Edit Sensor Calibration Constants
(not on ISM version)
Enter Calibration mode as described in section 7.1 “Enter Calibration Mode” 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 analogue conductivity sensor is connected to the M300 transmitter, it is necessary to enter the unique calibration constant located on the sensor label.
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7.8 Sensor Verification
Enter Calibration mode as described in section 7.1 “Enter Calibration Mode” and select Verify.
51
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.
Use the m or .
key to toggle between Channel A and B*.
* Only on dual channel version.
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8 Configuration
(PATH: Menu/Configure)
Configure
Measurement Analog Outputs Set Points Alarm/Clean Display Hold Outputs
52
8.1 Enter Configuration Mode
While in Measurement mode, press the ure – Menu and press [ENTER]. b key. Press the m or .
key to navigate to the Config-
8.2 Measurement
(PATH: Menu/Configure/Measurement)
Enter configuration mode as described in Section 8.1 ”Enter Configuration Mode”.
Press the [ENTER] key to select this Menu. The following sub menus can now be selected:
Channel Setup, Temperature Source*, Comp/pH/O2** and Set Averaging.
* Not on ISM version
** for single channel transmitters M300 and M300ISM the term in the display does not show
Comp/pH/O2 but Resistivity or pH or O2. The term depends on the version of the transmitter
M300 resp. the ISM sensor, that has been connected to the transmitter M300 ISM.
8.2.1 Channel Setup
(PATH: Menu/Configure/Measurement/Channel Setup)
Press the [ENTER] key to select the ”Channel Setup” Menu.
h
NOTE: The selection depends on the transmitter type.
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Analog Sensors:
Select Sensor Type and press [ENTER].
Available Sensor Types are: pH/ORP
Cond(2)
Cond(4)
O
2
O
O
2
O
2
3
hi
(I)
(V)
= pH or ORP
= 2 electrode conductivity
= 4 electrode conductivity
= Dissolved Oxygen (ppm)
= Dissolved Oxygen (except 58037221, Thornton models only)
= Dissolved Oxygen 58037221 (Thornton models only)
= Dissolved Ozone (Thornton models only)
ISM Sensors: pH/ORP pH/pNa
O
2
hi
Cond (2)
Cond (4)
= pH or ORP
= pH and ORP (with pH/pNa electrode)
= Dissolved oxygen (ppm)
= Cond 2-e sensor (Thornton models only)
Auto:
If you select a specific parameter instead of auto, the transmitter only accepts the selected parameter type.
= Cond 4-e sensor
= The transmitter automatically recognizes the connected sensor
The 4 lines of the display can now be configured with sensor channel ”A” or ”B” for each line of the display as well as measurements and unit multipliers. Pressing the [ENTER] key will display the selection for lines c and d.
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.
h
8.2.2 Derived Measurements (Thornton models only)
There are three derived measurements available for configuration with two Conductivity sensors:
%Rej (% Rejection), pH Cal (Calculated pH) and CO
2
Cal (Calculated CO
2
). To set up any of the derived measurements, first set up the two primary conductivity measurements, which will be used to calculate the derived measurement. Define the primary measurements as if they were stand-alone readings. Then the derived measurement can be defined.
NOTE: It is important to use the same units for both measurements.
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8.2.2.1 % Rejection measurement
For reverse osmosis (RO) applications, percent rejection is measured with conductivity to determine the ratio of impurities removed from product or permeate water to the total impurities in the incoming feed water. The formula for obtaining Percent Rejection is:
[1 – (Product/Feed)] X 100 = % Rejection
Where Product and Feed are the conductivity values measured by the respective sensors.
Figure 4.1 shows a diagram of an RO installation with sensors installed for Percent Rejection.
Conductivity
Sensor
B
Reverse Osmosis Membrane
Conductivity
Sensor
A
Feed Product
Reject
Figure 4.1: % Rejection
NOTE: The product monitoring sensor must be on the channel that will measure percent rejection. If the product conductivity sensor is installed in channel A, then percent rejection must be measured in channel A.
8.2.2.2 Calculated pH (Power plant applications only)
Calculated pH may be obtained very accurately from specific and cation conductivity values on power plant samples when the pH is between 7.5 and 10.5 due to ammonia or amines and when the specific conductivity is significantly greater than the cation conductivity. This calculation is not suitable where significant levels of phosphates are present. The M300 uses this algorithm when pH CAL is selected as a measurement.
The calculated pH must be configured on the same channel as specific conductivity. For example, set up measurement ”a” on channel A to be specific conductivity, measurement ”b” on
Channel B to be cation conductivity, measurement ”c” on channel A to be calculated pH and measurement ”d” on channel A to be temperature. Set the temperature compensation mode to
”Ammonia” for measurement ”a” and to ”Cation” for measurement ”b”.
NOTE: If operation goes outside the recommended conditions, a glass electrode pH measurement is needed to obtain an accurate value. On the other hand, when sample conditions are within the ranges noted above, the calculated pH provides an accurate standard for one-point trim calibration of the electrode pH measurement.
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8.2.2.3 Calculated CO
2
(Power plant applications only)
Carbon dioxide may be calculated from cation conductivity and degassed cation conductivity measurements on power plant samples using tables from ASTM Standard D4519. The M300 has these tables stored in memory, which it uses when units of CO
2
CAL are selected.
The calculated CO
2
measurement must be configured to the same channel as cation conductivity. For example, set up measurement ”a” on channel A to be cation conductivity, measurement
”b” on channel B to be degassed cation conductivity, measurement ”c” on channel A to be calculated CO
2
and measurement ”d” on channel B to be temperature.
Set the temperature compensation mode to ”Cation” for both conductivity measurements.
8.2.3 Temperature Source (not on ISM version)
(PATH: Menu/Configure/Measurement/Temperature Source)
Enter Configuration Mode as described in section 8.1 ”Enter Configuration mode” and select the menu Measurement (see section 8.2 ”Configuration/Measurement”).
Navigate to the menu Temperature Source by using the select this Menu. The following options can be chosen: m
”Fixed”: allows a specific temperature value to be entered.
or .
key. Press the [ENTER] key to
NOTE: The selection depends on the transmitter type. For detailed overview see the specifications in section 16 ”Specification”.
”Use this Ch Pt1000”: temperature input will be taken from the sensor attached.
”Use this Ch Pt100”: temperature input will be taken from sensor attached
”Use this NTC22K”: temperature will be taken from the sensor attached
”Fixed = 25°C”: allows a specific temperature value to be entered
”Use Other Channel”: temperature input will be taken from the sensor attached to the other channel (only on dual channel version)
NOTE: If temperature source is set to Fixed, the temperature applied during one-point and/or twopoint calibration of pH electrodes can be adjusted within the corresponding calibration procedure. After the calibration the fixed temperature defined in this configuration menu is valid again.
Pressing the [ENTER] key will bring up the Save Changes dialog.
Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.
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8.2.4 Parameter Related Settings
(PATH: Menu/Configure/Measurement/Comp/pH/O2)
Additional measurement and calibration parameters can be set for each parameter; conductivity, pH and O2.
NOTE: Use pH menu for settings of pH/pNa sensors.
Enter Configuration Mode as described in section 8.1 ”Enter Configuration mode” and select the menu Measurement (see section 8.2 ”Configuration/Measurement”).
For dual channel devices: The menu Comp/pH/O2 can be selected by using the
Then use the c m or
key to move to the next input field and select the parameter using the
.
m
key.
or key. The choices are Resistivity (for conductivity measurement), pH and O2. Press [ENTER]
.
For single-channel devices: The menu can be selected by using the m or play: Resistivity (for conductivity measurement), pH or O2. Press [ENTER]
.
key. Depending on the connected ISM sensor resp. used transmitter M300 the following term is shown in the dis-
For more details, please see the following explanations according to the different parameters.
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8.2.4.1 Conductivity/Resistivity Temperature Compensation
57
NOTE: The full Temperature Compensation selection is available on Thornton model transmitters only. All other models provide Standard, Lin 25°C or Lin 20°C compensation.
Select Resistivity and press [ENTER].
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 ”None”*, ”Standard”, ”Light 84”*, ”Std 75 ºC”*, ”Lin 25°C”, ”Glycol.5”*, ”Glycol1”*,
”Cation”*, ”Alcohol”*, ”Ammonia”* and ”Lin 20°C”.
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.
* Std 75 °C compensation is the Standard compensation algorithm referenced to 75°C. This compensation may be preferred when measuring Ultrapure Water at an elevated temperature.
(Resistivity of ultrapure water compensated to 75 °C is 2.4818 Mohm-cm.
Lin 25 °C 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.
* Glycol.5 compensation matches the temperature characteristics of 50% ethylene glycol in water. Compensated measurements using this solution may go above 18 Mohm-cm.
* Glycol1 compensation matches the temperature characteristics of 100% ethylene glycol.
Compensated measurements may go well above 18 Mohm-cm.
* Cation compensation is used in power industry applications measuring the sample after a cation exchanger. It takes into account the effects of temperature on the dissociation of pure water in the presence of acids.
* Alcohol compensation provides for the temperature characteristics of a 75% solution of isopropyl alcohol in pure water. Compensated measurements using this solution may go above 18 Mohm-cm.
* Light 84 compensation matches the high purity water research results of Dr. T.S. Light published in 1984. Use only if your institution has standardized on that work.
* Ammonia compensation is used in power industry applications for specific conductivity measured on samples using ammonia and/or ETA (ethanolamine) water treatment. It takes into account the effects of temperature on the dissociation of pure water in the presence of these bases.
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Lin 20 °C compensation adjusts the reading by a factor expressed as a ”% per °C” (deviation from 20 °C). Use only if the solution has a well-characterized linear temperature coefficient. The factory default setting is 2.0% / °C.
If compensation mode ”Lin 25 °C” or ”Lin 20 °C” has been chosen, the factor for the adjustment of the reading can be modified after pressing [ENTER] (If working at measurement line a or b press [ENTER] twice).
Pressing [ENTER] will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.
* On Thornton models only.
8.2.4.2 pH/ORP Parameters
Select pH and press [ENTER].
h
Select the drift control for calibration as Auto (stabilisation 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 0.8 mV over a 20 second interval then the reading is stable and the calibration is done using the last reading. If the drift criteria is not met within 300 seconds then the calibration times out and the message ”Calibration not done” is displayed. Press [ENTER].
For automatic buffer recognition during calibration, select the buffer solution set that will be used:
Mettler-9, Mettler-10, NIST Tech, NIST Std, HACH, CIBA, MERCK, WTW, JIS Z 8802 or None. See
Section 20 ”Buffer Tables” for buffer values. If the auto buffer feature will not be used or if the available buffers are different from those above, select None. Press [ENTER].
NOTE: For dual membrane pH electrodes (pH/pNa) only buffer Na+ 3.9M (see section 19.2.1
“Mettler-pH/pNa buffers”) is available.
STC is the solution temperature coefficient in units of pH/°C referenced to 25 °C (Default = 0.000 for most applications). For pure waters, a setting of – 0.016 pH/°C should be used. For low conductivity power plant samples near 9 pH, a setting of – 0.033 pH/°C should be used. These negative coefficients compensate for the negative temperature influence on the pH of these samples. Press [ENTER].
IP is the isothermal point value (Default = 7.000 for most applications). For specific compensation requirements or non standard inner buffer value, this value can be changed.
Press [ENTER].
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STC RefTemp sets the temperature to which solution temperature compensation is referenced.
The displayed value and the output signal is referenced to STC RefTemp. Selecting ”No” means solution temperature compensation is not used. The most common reference temperature is
25°C. Press [ENTER].
The units for the slope and the zero point, that will be shown on the display can be chosen. The default setting for the unit of the slope is [%] and can be changed to [pH/mV]. For the zero point the default setting of the unit is [pH] and can be changed to [mV]. Use the to the input field and select the unit by using the m or .
key. c key to move
Pressing [ENTER] again will bring up the Save Changes dialog. Selecting No will discard the entered values and return to the measurement display screen, selecting Yes will save changes made.
8.2.4.3 Dissolved Oxygen Parameters
Select O
2
and press [ENTER]
Enter the Calibration pressure. The default value for CalPres is 759.8 and the default unit is mmHg. Press [ENTER]
Enter the Process Pressure. The units for ProcPres and CalPres do not have to be the same.
Press [ENTER]
For the algorithm of the process calibration the applied pressure (ProcCalPres) has to be defined. The value of the process pressure (ProcPres) or the calibration pressure (CalPres) can be used. Chose the pressure, that applies during the process calibration, resp. should be used for the algorithm and press [ENTER]
Select the required Drift Control of the measuring signal during the calibration procedure. Choose
Manual if the user will decide when a signal is stable enough to complete the calibration. Select
Auto and an automatic stability control of the sensor signal during calibration through the transmitter will be done. Press [ENTER]
In the next step the salinity of the measured solution can be modified. Press [ENTER]
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In addition the relative humidity of the calibration gas can also be entered. The allowed values for relative humidity are in the range 0% to 100%.
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.
60
8.2.5 Set Averaging
(PATH: Menu/Configure/Measurement/Set Averaging)
Press the [ENTER] key to select this Menu. 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.
8.3 Analog Outputs
(PATH: Menu/Configure/Analog Outputs)
Enter configuration mode as described in Section 8.1 ”Enter Configuration Mode” and navigate to the menu “Analog Outputs” by using the m or .
key.
Press the [ENTER] key to select this Menu, which lets you configure the 2 (4 for dual channel version) Analog Outputs.
Once analog outputs have been selected, use the ble: b and c buttons to navigate between configurable parameters. Once a parameter is selected, its setting can be selected per the following ta-
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)
* Only on dual channel version.
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
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Transmitter M300 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.
61
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 Auto-
Range 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 ”Enter Configuration Mode”.
Press the [ENTER] key to select this Menu.
62
4 (6 for dual channel version) Setpoints can be configured on any of the measurements (a thru d). The possible Setpoint types are Off, High, Low, Outside and Between. Thornton models also include types, %USP, %EP PW and %EP WFI for configuration with conductivity sensors.
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.
USP and EP Setpoints on Thornton models provide a high alarm used for pharmaceutical water monitoring with non-temperature compensated conductivity measurements. USP (United States
Pharmacopoeia) section < 645 > and European Pharmacopoeia require that non-temperature compensated conductivity of pharmaceutical waters must be below a limit from tables based on the temperature of the sample. In other words, pharmaceutical requirements temperaturecompensate the limit rather than the measurement.
The Mettler Toledo Thornton M300 has these pharmaceutical limit tables in memory and automatically determines the conductivity limit based on the measured temperature. USP and EPWFI
(Water for Injection) setpoints use Table 8.1. The limit is the conductivity value corresponding to the 5 °C temperature step immediately below or equal to the measured temperature value. EP
Highly Purified Water limits are identical to EP WFI limits.
EP PW (Purified Water) setpoints use Table 8.2. The limit in this case is the conductivity value interpolated for the measured temperature. The M300 takes care of this automatically.
The pharmaceutical setpoint value entered into the M300 is the percentage safety margin below the limits to activate the setpoint. For example, the USP table conductivity limit at 15 °C is 1.0 µS/cm. If the setpoint value is set at 40% then the setpoint will activate whenever the conductivity goes above 0.6 µS/cm at 15 °C.
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Table 8.1: USP Section < 645 > Stage 1, EP WFI (Water for Injection), and EP Highly Purified Water Conductivity Limits as a Function of Temperature.
70
75
80
85
90
95
100
35
40
45
50
55
60
65
Temperature (ºC) Conductivity Limit (µS/cm)
0 0.6
5
10
0.8
0.9
15
20
25
30
1.0
1.1
1.3
1.4
1.5
1.7
1.8
1.9
2.1
2.2
2.4
2.5
2.7
2.7
2.7
2.7
2.9
3.1
Table 8.2: EP PW (Purified Water) Conductivity Limits as a Function of Temperature
40
50
60
70
75
80
90
100
Temperature (ºC) Conductivity Limit (µS/cm)
0 2.4
10
20
25
30
3.6
4.3
5.1
5.4
6.5
7.1
8.1
9.1
9.7
9.7
9.7
10.2
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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.
Out of Range
Once configured, the selected relay will be activated if a sensor Out of 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 value for the hysteresis. A hysteresis value requires the measurement to return within the setpoint value by a specified hysteresis before the relay is deactivated.
For a high setpoint, the measurement must decrease more than the indicated hysteresis below the setpoint value before the relay is deactivated. With a low setpoint, the measurement must rise at least the hysteresis above the setpoint value before the relay is deactivated. For example, with a high setpoint of 100 and hysteresis of 10, 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 M300 transmitter.
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 ”Enter Configuration Mode”.
This Menu allows the configuration of Alarm and Clean functionality.
65
8.5.1 Alarm
To select ”Setup Alarm”, press the m or .
key so that ”Alarm” is flashing.
Using the b and c buttons, navigate to ”Use Relay #”. Using the to be used for the Alarm and press [ENTER].
m or .
keys, select a relay
One of the following events may be alarmed:
1. Power Failure
2. Software Failure
3. Rg Diagnostics – pH glass membrane resistance (pH sensors only; pH/pNa Rg diagnostics detect both pH and pNa membrane glasses)
4. Rr Diagnostics – pH reference resistance (pH sensors only; except pH/pNa)
5. Cond cell open (cond sensors only)
6. Cond cell shorted (cond sensors only)
7. Channel A disconnected (ISM sensors only)
8. Channel B disconnected (only for ISM sensors and dual channel version)
If any of these criterias are set to Yes and the conditions for an alarm are given, the flashing symbol a will be shown in the display, an alarm message will be recorded (see also chapter
12.1 ”Messages”; PATH: Info/Messages) and the selected relay will be activated. Furthermore an alarm can be indicated by the current output if this has been parameterized (see chapter 8.3
”Analog Outputs”; PATH: Menu/Configure/Analog Outputs)
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 (pH only; pH/pNa Rg diagnostics detect both pH and pNa membrane glasses)
4. Rr is out of tolerance – for example, coated or depleted reference electrode (pH only)
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 A (ISM sensors only)
8. If no sensor is connected on channel B (only for ISM sensors and dual channel version)
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. 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 an alarm occurs). ”Inverted” relay operation is functional when power is applied to the M300 transmitter.
In addition, a Delay for the activation can be set. Enter the delay time in seconds. A time delay requires the alarm to occur continuously for the specified length of time before activating the relay. If the alarm disappears before the delay period is over, the relay will not be activated.
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.
Please note, that there are additional alarms, which will be indicated in the display. See therefore in chapter 14 ”Troubleshooting” the different warning- and alarm lists.
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 Display
(PATH: Menu/Configure/Display)
Enter configuration mode as described in Section 8.1 ”Enter Configuration Mode”.
This Menu allows for the configuration of the values to be displayed and also the configuration of the Display itself.
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8.6.1 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.
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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.
8.6.2 Resolution
This menu allows the setting of the resolution of each displayed value.
Possible settings are 1, 0.1, 0.01, 0.001 or Auto.
Pressing the [ENTER] key will bring up the Save Changes dialog.
8.6.3 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.
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8.6.4 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 b and c keys to navigate between digits to be altered. Using the tered, press [ENTER] to bring up the Save Changes dialog.
m and .
keys to change the character to be displayed. Once all digits of both display channels have been en-
The resulting display in the measurement mode appears on Lines 3 and 4 ahead of the measurements.
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8.7 Hold Analog Outputs
(PATH: Menu/Configure/Hold Outputs)
Enter configuration mode as described in Section 8.1 ”Enter Configuration Mode”.
The ”Hold outputs” function applies during the calibration process. If set ”Hold outputs” to Yes, during calibration process the 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 = Off/Low/High
NOTE: DigitalIn1 is to hold channel A
DigitalIn2 is to hold channel B*
* Only on dual channel version.
Possible Hold states:
Output relays:
Analog Output:
USB:
PID relay:
PID analog:
On/Off
Last/Fixed
Last/Off
Last/Off
Last/Off
(Configuration/Set point)
(Configuration/Analog output)
(System/USB)
(PID setup/Mode)
(PID setup/Mode)
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9 System
(PATH: Menu/System)
Set Language USB
System
Passwords
Set/Clear
Lockout
Reset
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While in Measurement mode press the
Menu and press [ENTER].
b key. Press the .
or m key to navigate to ”System” –
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, Russian, Portuguese and Japanese.
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 M300 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 ”Passwords” 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 ”Passwords” how to enter the Passwords Menu. Select Configure Operator to configure the Access list for the Operator. It is possible to assign/deny rights to the following Menus: Cal
Key, Quick Setup, Configuration, System, PID Setup and Service.
Choose either Yes or No to give/deny access to the above Menus and press [ENTER] to advance to the next items. Pressing the [ENTER] key after configuring all menus will bring up the Save
Changes dialog. Selecting No will discard the entered values, selecting Yes will make the entered values the current ones.
9.4 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.
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The Lockout – Menu is protected: Enter the Administrator 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, Reset Cal Data**.
* Not on ISM version
** For ISM version of Cond 2-e sensors only.
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 (not on ISM version)
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.
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 Analog Output calibration.
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9.5.4 Reset Sensor Calibration Data to Factory Settings
If a Cond 2-e sensor based on ISM technology is connected to the transmitter, this menu is available. The menu allows the reset of the calibration data (M resp. A) of the sensors to the factory settings.
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 calibration data of the sensor to factory settings.
NOTE: To ensure best measuring results, a new calibration of the sensor is recommended after a reset of the calibration data to factory settings. Depending on the application, the calibration could be temporarily performed as a process calibration, recommended however is an one point calibration (see chapter 7.2 “Conductivity/Resistivity Calibration”).
9.5.5 Reset Calibration Data of Sensor Electronic to Factory
Settings
If a Cond 2-e sensor based on ISM technology is connected to the transmitter, this menu is available. The menu allows the reset of the calibration data of the sensor`s evaluation electronic to the factory settings.
The procedure for this functions is described in the sensor manual.
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10 PID Setup
(PATH: Menu/PID Setup)
PID Setup
PID A/M
Tune
Parameters
Mode
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PID Display
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
– Ozone:
Ozone destruct – direct acting where increasing ozone concentration produces increasing control output such as increasing UV lamp intensity
Ozonation – reverse acting where increasing ozone concentration produces a decreasing control output to decrease the output of an ozonator.
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
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120%
100%
80%
60%
40%
20%
0%
–20%
–40%
–60%
–80%
–100%
–120%
0
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Default control settings provide linear control, which is appropriate for conductivity, dissolved oxygen and ozone. 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 nonlinear 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 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.
Controller with Corner Points
Proportional limit +100% value
2
Direct corner point (value, %)
Set point value
Deadband + value
Deadband - value
Reverse corner point (value, %)
4 6
Proportional limit –100% value
8
Process Variable
10 12 14
10.1 Enter PID Setup
(PATH: Menu/PID Setup)
While in Measurement mode press the up – Menu and press [ENTER].
b key. Press the m or .
key to navigate to the PID Set-
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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.
10.3 Mode
(PATH: MENU/PID Setup/Mode)
This menu contains the selection of control modes using relays or analog outputs.
Press [ENTER]. h
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 (recom mended) 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
1 st Relay Position
(#3)
Controlling concentrating reagent feed pH/ORP
Dissolved
Oxygen
Dissolved
Ozone
Feeding base
Reverse control action not recommended
2 nd Relay Position
(#4)
Pulse Length (PL)
Controlling dilution water
Feeding acid
Direct acting control action
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 not recommended
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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.
Conductivity pH/ORP
Dissolved
Oxygen
1 st Relay Position = #3 2 nd Relay Position = #4 Pulse Frequency (PF)
Controlling concentrating chemical feed
Controlling dilution water
Max allowed for the pump used (typically
60–100 pulses/minute)
Feeding base
Reverse control action
Feeding acid
Direct acting control action
Max allowed for the pump used (typically
60–100 pulses/minute)
Max allowed for the pump used (typically
60–100 pulses/minute)
Dissolved
Ozone not recommended not recommended
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].
Conductivity pH/ORP
Dissolved Oxygen
Dissolved Ozone
1 st Analogout Position = #1
Controlling concentrating chemical feed
Feeding base
Reverse control action
Controlling ozonation
2 nd Analogout Position = #2
Controlling dilution water
Feeding acid
Direct acting control action
Controlling ozone destruction
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.
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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.
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 or dissolved ozone 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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11 Service
(PATH: Menu/Service)
Diagnostics
Service
Calibrate
78
Tech Service
11.1 Enter Service Menu
While in Measurement mode press the b key. Press the m or .
key to navigate to the ”Service”
Menu and press [ENTER]. The available system configuration options are detailed below
11.2 Diagnostics
(PATH: Menu/Service/Diagnostics)
Enter Service Menu as described in section 11.1 ”Enter Service Menu” and press [ENTER] .
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.
11.2.1 Model/Software Revision
Essential information for every Service call is the model and software revision number.
This menu shows the part number, model and the serial number of the transmitter. By using the
.
key it is possible to navigate forward through this submenu and get additional information like the current version of firmware implemented on the transmitter (Master V_XXXX and
Comm V_XXXX); and – if an ISM sensor is connected – the version of the sensor firmware
(Sensor FW V_XXX) and sensor hardware (Sensor HW XXXX).
Press [ENTER] to exit from this display.
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11.2.2 Digital Input
The digital Input menu shows the state of the digital inputs. Press [ENTER] to exit from this display.
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11.2.3 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.
11.2.4 Keypad
For keypad diagnostics, the display will indicate which key is pressed. Pressing [ENTER] will return the transmitter to the normal Measuring mode.
11.2.5 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.
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11.2.6 Set Relay
The Set Relays diagnostic menu allows to open or close each relay manually. To access relays
5 and 6, press [ENTER].
0 = open the relay
1 = close the relay
Press [ENTER] to return to Measurement mode.
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11.2.7 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.
11.2.8 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.
11.2.9 Read Analog Outputs
This menu shows the mA value of the analog Outputs. Press [ENTER] to exit from this display.
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11.3 Calibrate
(PATH: Menu/Service/Calibrate)
Enter Service Menu as described in section 11.1 ”Enter Service Menu”, select Calibrate, and press [ENTER].
This menu has the options to calibrate the transmitter and the analog outputs and also allows the unlocking of calibration functionality.
11.3.1 Calibrate Meter (not on ISM version)
The M300 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 Resistance (1–5, used for conductivity), Current (used for most dissolved oxygen and dissolved ozone), Voltage,
Rg Diagnostic, Rr Diagnostic (used for pH and 58037221 dissolved oxygen), and Temperature
(used for all measurements).
11.3.1.1 Resistance
The meter is equipped with five (5) internal ranges of measurement on each channel. Each resistance range and temperature is calibrated separately, with each resistance range consisting of a two-point calibration.
Below is a table showing the resistance values for all calibration ranges.
Range:
Resistivity 1
Resistivity 2
Resistivity 3
Resistivity 4
Resistivity 5
Temperature
Point 1
1.0 Mohms
100.0 Kohms
10.0 Kohms
1.0 Kohms
100 Ohms
1000 Ohms
Point 2
10.0 Mohms
1.0 Mohms
100.0 Kohms
10.0 Kohms
1.0 Kohms
3.0 Kohms
Point 3
–
–
–
–
–
66 Kohms
It is recommended that both calibration and verification be performed using the M300 Calibrator
Module Accessory (refer to accessory list, in section 15). Instructions on the use of this accessory are provided with the calibrator module.
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Navigate to the Calibrate Meter screen and select Channel A or B, and Resistance 1, designating that the transmitter is ready to calibrate the first range resistor. This resistance may be changed, selecting range 1 thru 5. Each resistance range consists of a two-point calibration.
Press [ENTER] to begin the calibration process.
The first text line will ask for the Point 1 resistance value (this will correspond to Resistance 1 value shown on the Calibration Module Accessory). The second text line will show the measured resistance value. When the value stabilizes, press [ENTER] to perform calibration.
The transmitter screen will then prompt the user to enter the value for Point 2, and R1 will display the measured resistance value. When this value stabilizes, press [ENTER] to calibrate this range and bring up a confirmation screen.
Select Yes to save the calibration values and the successful Calibration is confirmed on the display. The transmitter will return to the Measurement mode in approximately 5 seconds.
Once point 1 and 2 are calibrated, return to the Calibrate Meter screen. Move the cursor to change to Resistance 2, designating the second calibration range. Proceed with the two-point calibration process as performed for the first range. This same process must be followed to complete the resistance calibration of all 5 ranges.
11.3.1.2 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 either Channel A or B.
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.
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The transmitter will return to the Measurement mode in approximately 5 seconds.
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11.3.1.3 Current
Current Calibration is preformed as a two point calibration.
Navigate to the Calibrate Meter screen and select Channel A or B and Current.
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.
11.3.1.4 Voltage
Voltage Calibration is preformed as a two point calibration.
Navigate to the Calibrate Meter screen and select Channel A or B 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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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.
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11.3.1.5 Rg Diagnostic
Rg Diagnostic is performed as a two point calibration. Navigate to the Calibrate Meter screen and select Channel A or B and Rg Diagnostic.
Enter the value for Point 1 of the calibration according to the resistor connected across the pH glass electrode measuring input. Press [ENTER] to begin the calibration process.
Enter the value for Point 2 of the calibration according to the resistor connected across the pH glass electrode measuring input.
Pressing the [ENTER] key after entering Point 2 will bring up a confirmation screen. Select Yes to save the calibration values and the successful Calibration is confirmed on the display. The transmitter will return to the Measurement mode in approximately 5 seconds.
11.3.1.6 Rr Diagnostics
Rr Diagnostic is performed as a two point calibration. Navigate to the Calibrate Meter screen and select Channel A or B 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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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.
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11.3.2 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.
11.3.3 Calibrate Unlock
Select this Menu to configure the CAL Menu (see chapter 7 ”Sensor Calibration”).
Selecting Yes means that Meter calibration menu (see chapter 11.3.1 ”Calibrate Meter”) and Analog Output calibration menu (see chapter 11.3.2 ”Calibrate Analog”) 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.
11.4 Tech Service
(PATH: Menu/Tech Service)
Note: This Menu is for Mettler Toledo Service personnel use only.
h
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Transmitter M300 86
12
(PATH: Info)
Info
Info
Messages
ISM Sensor
Info*
Calibration
Data
Model/Software
Revision
* ISM version only
12.1 Info Menu
Pressing the .
key will display the Info Menu with the options Messages, Calibration Data and
Model/Software Revision.
12.2 Messages
(PATH: Info/Messages)
Enter Info Menu as described in section 12.1 ”Info Menu” and press [ENTER].
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.
12.3 Calibration Data
(PATH: Info/Calibration Data)
Enter Info Menu as described in section 12.1 ”Info Menu”, select Calibration Data, and press
[ENTER].
The menu displays the calibration constants for each sensor. Use the up and down arrow keys to toggle between channels ”A” and ”B”.
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Transmitter M300
P = calibration constants for the primary measurement
S = calibration constants for the secondary measurement
Press [ENTER] to exit from this display.
87
12.4 Model/Software Revision
(PATH: Info/Model/Software Revision)
Enter Info Menu as described in section 12.1 ”Info Menu”, select Model/Software Revision, and press [ENTER].
Selecting Model/Software Revision will display the part number, model and the serial number of the transmitter. By using the .
key it is possible to navigate forward through this menu and get additional information like the current version of firmware implemented on the transmitter (Master V_XXXX and Comm V_XXXX); and – if an ISM sensor is connected – the version of the sensor firmware (Sensor FW V_XXX) and sensor hardware (Sensor HW XXXX).
The displayed information is important for any Service call. Press [ENTER] to return to the normal measurement mode.
12.5 ISM Sensor Info (ISM version only)
(PATH: Info/ISM Sensor Info)
Enter Info Menu as described in section 12.1 ”Info Menu”, select ISM Sensor Info, and press
[ENTER].
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 calibration
Serial-No.: Serial number of the connected Sensor
Part-No.: Part number of the connected Sensor
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Transmitter M300
13 Maintenance
13.1 For Technical Support
For technical support and product information for M300 Thornton Transmitters contact:
Mettler-Toledo Thornton, Inc.
36 Middlesex Turnpike
Bedford, MA 01730 USA
Phone: 781-301-8600 or 800-510-PURE
Fax: 781-271-0214
Email: [email protected]
Or: Your local Mettler-Toledo Sales Office or representative.
88
13.2 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.
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Transmitter M300
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:
89
Problem
Display is blank.
Incorrect measurement readings.
Measurement readings not stable.
Displayed a is flashing.
Cannot change menu settings.
Possible Cause
– No power to M300.
– 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.
– Setpoint is in alarm condition (setpoint exceeded).
– Alarm, that has been selected (see chapter 8.5.1
“Alarm”), has occurred.
– User locked out for security reasons.
14.1 Changing the Fuse
a
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 M300 transmitter is too high or a malfunction leads to a short circuit the fuse will blow. In this case remove the fuse and replace it with one specified in Section 15 “Accessories and Spare Parts”.
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Transmitter M300
14.2 pH Error Messages / Warning- and Alarm List
14.2.1 pH sensors execpt dual membrane pH electrodes
Warnings
Warning pH slope > 102%
Warning pH Slope < 90%
Description
Slope too big
Slope too small
Warning pH Zero >7.5 pH
Warning pH Zero < 6.5 pH
Zero offset too big
Zero offset too small
Warning pHGls change < 0.3
Glass electrode resistance changed by more than factor 0.3
Warning pHGls change > 3 Glass electrode resistance changed by more than factor 3
Warning pHRef change < 0.3
Warning pHRef change > 3
Reference electrode resistance changed by more than factor
0.3
Reference electrode resistance changed by more than factor 3
Alarms
Watchdog time-out*
Error pH Slope >103%
Description
SW/System fault
Slope too big
Error pH Slope < 80%
Error pH Zero > 8.0 pH
Slope too small
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)
* ISM sensors only
** According to the parameterization of the transmitter (see chapter 8.5.1 “Alarm”;
PATH: Menu/Configure/Alarm/Clean/Setup Alarm)
90
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Transmitter M300
14.2.2 Dual membrane pH electrodes (pH/pNa)
Warnings
Warning pH slope >102%
Warning pH Slope < 90%
Warning pH Zero > 8.0 pH
Warning pH Zero < 6.0 pH
Description
Slope too big
Slope too small
Zero offset too big
Zero offset too small
Warning pHGls change < 0.3* Glass electrode resistance changed by more than factor 0.3
Warning pHGls change > 3* Glass electrode resistance changed by more than factor 3
Warning pNaGls change< 0. 3* Glass electrode resistance changed by more than factor 0.3
Warning pNaGls change > 3* Reference electrode resistance changed by more than factor 3
91
Alarms
Watchdog time-out
Error pH Slope >103%
Description
SW/System fault
Slope too big
Error pH Slope < 80%
Error pH Zero > 9.0 pH
Slope too small
Zero offset too big
Error pH Zero < 5.0 pH Zero offset too small
Error pNa Gls Res > 2000 MΩ* Glass electrode resistance too big (break)
Error pNa Gls Res < 5 MΩ* Glass 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)
* According to the parameterization of the transmitter (see chapter 8.5.1 “Alarm”;
PATH: Menu/Configure/Alarm/Clean/Setup Alarm)
14.2.3 ORP messages
Warnings* Description
Warning ORP ZeroPt > 30 mV Zero offset too big
Warning ORP ZeroPt < – 30 mV Zero offset too small
Alarms*
Watchdog time-out
Error ORP ZeroPt > 60 mV
Description
SW/System fault
Zero offset too big
Error ORP ZeroPt < – 60 mV Zero offset too small
* ISM sensors only
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Transmitter M300
14.3 O2 Error Messages / Warning- and Alarm List
Warnings
Warning O
2
Slope < –90 nA
Warning O
2
Slope > –35 nA
Warning O
2
ZeroPt > 0.3 nA
Warning O
2
ZeroPt < –0.3 nA
Description
Slope too big
Slope too small
Zero offset too big
Zero offset too small
Alarms
Watchdog time-out
Error O
2
Slope < –110 nA
Error O
2
Slope > – 30 nA
Error O
2
ZeroPt > 0.6 nA
Error O
2
ZeroPt < – 0.6 nA
Description
SW/System fault
Slope too big
Slope too small
Zero offset too big
Zero offset too small
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14.4 Cond Error Messages / Warning- and Alarm List
Alarms
Watchdog time-out
Cond Cell open*
Description
SW/System fault
Cell running dry (no measurement solution) or wires are broken
Short circuit caused by sensor or cable Cond Cell shorted*
* According to the parameterization of the transmitter (see chapter 8.5.1 “Alarm”;
PATH: Menu/Configure/Alarm/Clean/Setup Alarm)
14.5 O
2
(I) Error Messages / Warning- and Alarm List
(Thornton Models only)
Warnings
Warning DO Slope < – 460 nA
Warning DO Slope > – 250 nA
Warning DO ZeroPt > 0.5 nA
Warning DO ZeroPt < – 0.5 nA
Description
Slope too big
Slope too small
Zero offset too big
Zero offset too small
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
Description
SW/System fault
Wrong installation of jumper
Slope too big
Slope too small
Zero offset too big
Zero offset too small
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Transmitter M300
14.6 O
2
(V) Error Messages / Warning- and Alarm List
(Thornton Models only)
Warnings
Warning DO Slope >1.50
Warning DO Slope < 0.65
Warning DO ZeroPt >15 μV
Warning DO ZeroPt < –15 μV
Description
Slope too big
Slope too small
Zero offset too big
Zero offset too small
Alarms
Watchdog time-out
Warning DO Slope < 2.00
Warning DO Slope < 0.25
Warning DO ZeroPt > 30 μV
Warning DO ZeroPt < –30 μV
Description
SW/System fault
Slope too big
Slope too small
Zero offset too big
Zero offset too small
14.7 Ozone Error Messages / Warning- and Alarm List
(Thornton Models only)
Warnings
Warning O
3
Slope >1.83 nA
Warning O
3
Slope < 0.73 nA
Warning O
3
ZeroPt > 0.5 nA
Warning O
3
ZeroPt < – 0.5 nA
Description
Slope too big
Slope too small
Zero offset too big
Zero offset too small
Alarms
Watchdog time-out
Error O
3
Slope > 2.75 nA
Error O
3
Slope < 0.65 nA
Error O
3
ZeroPt >1.0 nA
Error O
2
ZeroPt < –1.0 nA
Description
SW/System fault
Slope too big
Slope too small
Zero offset too big
Zero offset too small
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14.8 Warning- and Alarm indication on the display
14.8.1 Warning indication
If there are conditions, that generate a warning, the message will be recorded through the menu
Messages (see chapter 12.1 “Messages”; PATH: Info/Messages). According to the parameterisation of the transmitter the hint ”Failure – Press Enter” will be shown at line 4 of the display if a warning or alarm has occurred (see chapter 8.6. “Display”;
PATH: Menu/Configure/Display/Measurement).
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Transmitter M300 94
14.8.2 Alarm indication
Alarms will be shown in the display by a flashing symbol a and recorded through the menu
Messages (see chapter 12.1 “Messages”; PATH: Info/Messages).
Furthermore the detection of some alarms can be activated or deactivated (see chapter 8.5
“Alarm/Clean”; PATH: Menu/Configure/Alarm/Clean) for an indication on the display. If one of these alarms occurs and the detection has been activated, the flashing symbol a will be shown on the display. The message will be recorded through the menu Messages
(see chapter 12.1 “Messages”; PATH: Info/Messages).
Alarms, that are caused by a violation of the limitation of a setpoint or the range (see chapter
8.4 “Setpoints”; PATH: Menu/Configure/Setpoint) will be shown by a flashing symbol a and recorded through the menu Messages (see chapter 12.1 “Messages”; PATH: Info/Messages).
According to the parameterisation of the transmitter the hint ”Failure – Press Enter” will be shown at line 4 of the display if a warning or alarm has occurred (see chapter 8.6. “Display”;
PATH: Menu/Configure/Display/Measurement).
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Transmitter M300
15 Accessories and Spare Parts
Please contact your local Mettler-Toledo Sales office or representative for details for additional accessories and spare parts.
For M300 Thornton
Description
Pipe Mount Kit for 1/2DIN models
Panel Mount Kit for 1/2DIN models
Adaptor Panel – M300 to 200/2000 cutout
M300 Conductivity Calibrator Module
Replacement power fuse 5x20 mm, 1 A, 250 V, time lag, Littlefuse or Hollyland
Terminal blocks for M300
Order no.
52 500 212
52 500 213
58 083 300
58 082 300
58 091 326
52 121 504
95
For M300
Description
Pipe Mount Kit for 1/2DIN models
Panel Mount Kit for 1/2DIN models
Protective Hood for 1/2DIN models
Terminal blocks for M300, M400
Order no.
52 500 212
52 500 213
52 500 214
52 121 504
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Transmitter M300
16 Specifications
16.1 General specifications
Conductivity/resistivity Specifications
Range 0.01 cm –1 constant sensor 0.002 to 200 µS/cm (5000 Ω x cm to 500 MΩ x cm)
Range 0.1 cm –1 constant sensor 0.02 to 2000 µS/cm (500 Ω x cm to 50 MΩ x cm)
Range 10 cm –1 constant sensor
Display range for 2-e sensor
Display range for 4-e sensor
10 to 40,000 µS/cm (25 Ω x cm to 100 KΩ x cm)
0 to 40,000 mS/cm (25 Ω x cm to 100 MΩ x cm)
0.01 to 650 mS/cm (1.54 Ω x cm to 0.1MΩ x cm)
Chemical concentration curves
NaCl: 0–26% @ 0°C to 0–28% @ +100 °C
NaOH: 0–12% @ 0°C to 0–16% @ +40 °C to 0–6% @ +100 °C
HCl: 0–18% @ –20 °C to 0–18% @ 0 °C to 0-5% @ +50 °C
HNO3: 0–30% @ –20 °C to 0–30% @ 0 °C to 0-8% @ +50 °C
H2SO4: 0–26% @ –12 °C to 0–26% @ +5 °C to 0–9% @ +100 °C
H3PO4: 0–35% @ +5 °C to +80 °C
TDS ranges
Temperature input*
Temperature measuring range
NaCl, CaCO3
Pt1000
– 40 to + 200.0 °C (– 40 to 392 °F)
Sensor maximum distance
Analogue 2-e: 61 m (200 ft),
Analogue 4-e: 15 m (50 ft),
ISM 2-e: 90 m (300 ft)
ISM 4-e: 80 m (260 ft),
Cond/Res resolution
Cond/Res accuracy**
Cond/Res repeatability**
Temperature resolution
Temperature accuracy**
Temperature repeatability** pH Specifications pH range mV range
Temperature input*
Temperature measuring range
Sensor maximum distance pH resolution pH accuracy** mV resolution mV accuracy
Temperature resolution
Temperature accuracy**
Auto / 0.001 / 0.01 / 0.1 / 1 (can be selected)
± 0.5% of reading or 0.25Ω, whichever is greater,
± 0.25% of reading or 0.25 ohm, whichever is greater
Auto / 0.001 / 0.01 / 0.1 / 1 °C (°F) (can be selected)
± 0.25°C (± 0.45 °F)
± 0.13°C (± 0.23 °F)
–2.00 to 16.00 pH
–1500 to 1500 mV
Pt1000 (Pt100 with adapter)
– 30 to 130 °C (– 22 to 266 °F)
Analogue: 10 to 20 m (33 to 65 ft) depending on sensor
ISM: 80 m (260 ft) auto / 0.01 / 0.1 / 1 (can be selected)
± 0.02 pH
1 mV
± 1 mV
Auto / 0.001 / 0.01 / 0.1 / 1 °C (°F), (can be selected)
± 0.25°C (± 0.45 °F)
* Not requried on ISM sensors
** For analogue input signal (ISM signal causes no additional error)
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Transmitter Multiparameter M300
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Transmitter M300
Available Buffer Sets:
MT-9 buffers, MT-10 buffers, NIST Technical Buffers,
NIST Standard Buffers (DIN 19266:2000–01), JIS Z 8802 buffers, Hach buffers, CIBA (94) buffers, Merck Titrisols-Reidel Fixanals, WTW buffers
Dual membrane electrodes pH buffers (pH/pNa)
Mettler-pH/pNa buffers (Na+ 3.9M)
Dissolved Oxygen Specifications
Measuring current range
Concentration range
Temperature input*
Temperature measuring range
Sensor maximum distance
DO resolution
DO accuracy**
Temperature resolution
Temperature accuracy**
Polarization voltage
Dissolved Ozone Specifications
Ozone range
Ozone resolution
Relative accuracy
Temperature input
0 to 900 nA
0.00 to 50.00 ppm (mg/l)
NTC 22 kΩ
–10 to 80 °C (14 to 176 °F)
Analogue: 20 m ( 65 ft)
ISM: 80 m (260 ft)
Auto / 0.001 / 0.01 / 0.1 / 1, (can be selected)
± 0.5% of full scale reading
Auto / 0.001 / 0.01 / 0.1 / 1 °C (°F), (can be selected)
± 0.25 °C (± 0.45 °F)
-674 mV (for analog sensors)
0 – 5,000 ppb, 0 – 5 ppm
1 ppb, 0.001 ppm
± 2% of reading or ± 3 ppb, system
Pt1000
* Not requried on ISM sensors
** For analogue input signal (ISM signal causes no additional error)
97
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Transmitter M300 h
16.2 Electrical specifications for
1/2DIN and 1/4DIN versions
Power requirements
Frequency
Analog output signals
Measurement Error through analog outputs
Analog output configuration
Load
Connection terminals
Digital communication
PID process controller
Cycle time
Connection terminals
Digital Input
Mains power fuse
Relays
Alarm Relay delay
Keypad
Display
100 to 240 VAC or 20 to 30 VDC, 10 VA;
AWG 14 < 2.5 mm 2
50 to 60 Hz
4 (2 for single channel version) 0/4 to 22 mA outputs, galvanically isolated from input and from earth/ground
< ± 0.05 mA over 1 to 22 mA range,
< ± 0.1 mA over 0 to 1 mA range
Linear, Bi-Linear, Logarithmic, Autoranging
Max. 500 Ω
Detachable screw terminals
USB port, Type B connector
Pulse length, pulse frequency or analog control
Ca 1 sec.
Detachable screw terminals
1 (2 for dual channel version) with swtiching limits
0.00 VDC to 1.00 VDC for low level
2.30 VDC to 30.00 VDC for high level
1.0 A slow blow type FC
– 2-SPDT mechanical 250 VAC, 30 VDC, 3 Amps
– 2-SPST mechanical rated at 250 VAC, 3 Amps
(dual channel only)
– 2-Reed 250 VAC or DC, 0.5 A, 10 W
0–999 s
5 tactile feedback keys
Backlit LCD, four-line
NOTE: This is a 4-wire-product with an active 4–20 mA analog output.
Please do not supply to Pin1–Pin6 of TB2.
98
16.3 Mechanical specifications for 1/4DIN version
Dimensions (housing – H x W x D)* 96 x 96 x 140 mm (1/4DIN model)
Front bezel – (H x W) 102 x 102 mm
Max. depth 125 mm (excludes plug-in connectors)
Weight
Material
Ingress rating
0.6 kg (1.5 lb)
ABS/polycarbonate
IP 65 (front)/IP 20 (housing)
* H = Height, W = Width, D = Depth
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Transmitter M300
16.4 Mechanical specifications for 1/2DIN version
Dimensions (housing – H x W x D)* 144 x 144 x 116 mm
Front bezel – H x W
Max. D – panel mounted
Weight
Material
Ingress rating
150 x 150 mm
87 mm (excludes plug-in connectors)
0.95 kg (2 lb)
ABS/polycarbonate
IP 65 (when back cover is attached)
* H = Height, W = Width, D = Depth
16.5 Environmental specifications for
1/2DIN and 1/4DIN versions
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
UL Electrical Environment
According to EN55011 Class A
Installation (overvoltage) category II
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Transmitter M300
17 Default tables
17.1
Parameter
Alarm
Clean
Language
Passwords
Lockout
Display
Analog Out
All analog out
M300 ISM (Single-Channel Instruments)
Unit
All Relays (Unless
Otherwise Specified)
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
1
2
Line 3
Line 4
Mode
Type
Alarm
Hold Mode
Sub parameter
Relay
Power Failure
Software Failure
Rg Diagnostics
Rr Diagnostics
Cond Cell Open
Cond Cell Shorted
Disconnect ChA
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
1
0
No
Last
Inverted
1
0
0
Last
0
0
Normal
No
No
No
No
Value
2
No
No
English
00000
00000
10 a b
5
Normal
Last
No c (not available) d (not available) a b
4–20 mA
Normal
Off
Last Value
Sec
Hrs
Sec
Sec
%
100
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Transmitter M300
Parameter
Conductivity
Resitivity
Sub parameter
Value 4 mA
Value
0.1
10
O pH
Temperature
Set Point 1
Conductivity
Resitivity
O
2
2 pH
Relay 3
Set Point 2
Value 20 mA
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Measurement
Type
High Value
Low Value
High Value
Low Value
High Value
Low Value
Set point
Measurement
Type
High Value
Low Value
Set Point Relay 4
Resolution
Conductivity
Resistivity
O
2
Compensation Standard pH
V polarisation**
CalPres
ProcPres
ProcCalPres
Salinity
Humidity
Drift Control
IP
STC
FixCalTemp pH Buffer
Cal info slope
Cal info offset
* For analogue output signal if relay is switched
** Not adjustable
–675
759.8
759.8
CalPres
0.0
100
Auto
7.0
0.000
No
Mettler-9
[%]
[pH]
10
20
0
0
0
0
0
100
2
12
0
100 a
Off
0
0
0
1 b
Off
50
0
12
2
Auto
Italics = default values if resitivity instead of coductivity is chosen.
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat pH pH
Unit
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat pH pH
°C
°C
°C
°C mV mmHg mmHg g/kg
% pH pH/°C
101
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Transmitter M300
17.2
Parameter
Alarm
Clean
Language
Passwords
M300 ISM (Dual-Channel Instruments)
Sub parameter
Relay
Power Failure
Software Failure
Rg Diagnostics
Rr Diagnostics
Cond Cell Open
Cond Cell Shorted
Disconnect ChA
Disconnect CHB
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
Administrator
Operator
Last
1
0
Inverted
1
Last
0
0
Normal
0
0
English
00000
00000
No
No
No
No
No
No
Value
2
No
No
All Relays (Unless
Otherwise Specified)
Delay 10
Lockout
Display
Analog Out
All analog out
Conductivity
Resitivity
O
2
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
Line 3
Line 4
3
4
1
2
Mode
Type
Alarm
Hold Mode
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA a b c d
5
Normal
Last
No c d a b
4–20 mA
Normal
Off
Last Value
0.1
10
10
20
0
100
Unit
Sec
Hrs
Sec
Sec
%
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
102
Transmitter Multiparameter M300
52 121 389
Transmitter M300 103
Parameter pH
Temperature
Set Point 1
Conductivity
Resitivity
O
2 pH
Relay 3
Set Point 2
Conductivity
Resitivity
O
2 pH
Relay 4
Resolution
Set Point 3
Set Point 4
Sub parameter
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Measurement
Type
High Value
Low Value
High Value
Low Value
High Value
Low Value
Set point
Measurement
Type
High Value
Low Value
High Value
Low Value
High Value
Low Value
Set Point
Measurement
Type
Relay
Measurement
Type
Relay
Conductivity
Resistivity
O
2 pH
Compensation
V polarisation**
CalPres
ProcPres
ProcCalPres
Salinity
Humidity
Drift Control
IP
STC
FixCalTemp pH Buffer
Cal info slope
Cal info offset
Standard
–675
759.8
759.8
CalPres
0.0
100
Auto
7.0
0.000
No
Mettler-9
[%]
[pH]
* For analogue output signal if relay is switched ** Not adjustable
Value
2
12
0
100 a
Off
0
0
0
0
50
0
12
0
1
0
0
0
0 c
Off
50
0
12
0
2
Auto
_(none)
Off
_(none)
_(none)
Off
_(none)
Italics = default values if resitivity instead of coductivity is chosen.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Unit pH pH
°C
°C
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat pH pH
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat pH pH mV mmHg mmHg g/kg
% pH pH/°C
Transmitter Multiparameter M300
52 121 389
Transmitter M300
17.3
Parameter
Alarm
Clean
Language
Passwords
Lockout
Display
Cal constants
Analog Out
All analog out
Conductivity
Resitivity
Temperature
M300 Conductivity (Single-Channel Instruments)
Unit
All Relays (Unless
Otherwise Specified)
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
Line 3
Line 4
Cond/Res
Sub parameter
Relay
Power Failure
Software Failure
Cond Cell Open
Cond Cell Shorted
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
Temperature
1
2
Mode
Type
Alarm
Hold Mode
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Value
2
No
No
No
No
Last
1
0
Inverted
1
Last
0
0
0
0
Normal
English
00000
00000
10
5
Normal
Last
No a (Conductivity) b (Temperature) c (not available) d (not available)
M = 0.1
A = 0.0
M = 1.0,
A = 0.0
a (Resitivity) b (Temperature)
4–20 mA
Normal
Off
Last Value
0.1
10
10
20
0
100
Sec
Hrs
Sec
Sec
%
S/cm
°C cm -1
Ω
Ω
µS/cm
MΩ-cm
µS/cm
MΩ-cm
°C
°C
104
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
Parameter
Set Point 1
Sub parameter
Measurement
Type
High Value
Low Value
Relay 3
Set Point 2
Set point
Measurement
Type
High Value
Low Value
Set Point Relay 4
Resolution
Conductivity
Resistivity
Compensation
* For analogue output signal if relay is switched
1 b
0
0
Off
0
0
2
Auto
0
0
Value a
Off
Standard
Italics = default values if resitivity instead of coductivity is chosen.
Unit
µS/cm
MΩ-cm
µS/cm
MΩ-cm
°C
°C
17.4
Parameter
Alarm
Clean
Language
Passwords
Lockout
M300 O
2
(Single-Channel Instruments)
Unit
All Relays (Unless
Otherwise Specified)
Sub parameter
Relay
Power Failure
Software Failure
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
0
0
Normal
0
0
English
00000
00000
Value
2
No
No
Last
1
0
Inverted
1
Last
10
5
Normal
Last
No
Sec
Hrs
Sec
Sec
%
105
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
Parameter
Display
Cal constants
Analog Out
All analog out
O2
Temperature
Set Point 1
Relay 3
Set Point 2
Sub parameter
Line 1
Line 2
Line 3
Line 4
O2
Temperature
1
2
Mode
Type
Alarm
Hold Mode
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Measurement
Type
High Value
Low Value
Set point
Measurement
Type
High Value
Low Value
Set Point Relay 4
Resolution
O2 V polarisation**
CalPres
ProcPres
ProcCalPres
Salinity
Humidity
* For analogue output signal if relay is switched
** Not adjustable
Value a (O2) b (Temperature) c (not available) d (not available)
S = -70.00
A = 0.0
M = 1.0
A = 0.0
0
2
Off
0
Auto
–675
1 b a
Off
50
0 a (O2) b (Temperature)
4–20 mA
Normal
Off
Last Value
0
100
0
100
759.8
759.8
CalPres
0.0
100 nA nA
Ω
Unit
% sat
°C
% sat
% sat
°C
°C
% sat
% sat
°C
°C mV mmHg mmHg g/kg
%
106
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
17.5 M300 pH (Single-Channel Instruments)
Parameter
Alarm
Clean
Language
Passwords
All Relays (Unless
Otherwise Specified)
Lockout
Display
Cal constants
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
Line 3
Line 4 pH
Sub parameter
Relay
Power Failure
Software Failure
Rg diagnostics
Rr diagnostics
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
Analog Out
All analog out pH
Temperature
Temperature
1
2
Mode
Type
Alarm
Hold Mode
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Unit
Sec
Hrs
Sec
Sec
% pH
°C pH pH
°C
°C
10
5
Normal
Last
No a (pH) b (Temperature) c (not available) d (not available)
S = 100
Z = 7.0
M = 1.0
A = 0.0
a (pH) b (Temperature)
4–20 mA
Normal
Off
Last Value
2
12
0
100
0
0
1
Last
Normal
0
0
English
00000
00000
Value
2
No
No
No
No
Last
1
0
Inverted
% pH
Ω
107
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
Parameter
Set Point 1
Relay 3
Set Point 2
Sub parameter
Measurement
Type
High Value
Low Value
Set point
Measurement
Type
High Value
Low Value
Set Point Relay 4
Resolution pH Drift Control
IP
STC
Fix CalTemp pH Buffer
Cal info slope
Cal info offset
* For analogue output signal if relay is switched
0
1 b
Off
0
0
2
Value a
Off
12
Auto
Auto
7.0
0.000
No
Mettler-9
[%]
[pH]
Unit pH pH
°C
°C pH/°C
108
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
17.6
Parameter
Alarm
Clean
Language
Passwords
Lockout
Display
Cal Constants
M300 Multiparameter (Dual-Channel Instruments)
Unit
All Relays (Unless
Otherwise Specified)
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
Line 3
Line 4
Cond/Res
Sub parameter
Relay
Power Failure
Software Failure
Rg Diagnostics
Rr Diagnostics
Cond Cell Open
Cond Cell Shorted
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
O2
O2(I)***
O2(V)*** pH
O3***
Temperature
10 a b c d
5
Normal
Last
No
M = 0.1
A = 0.0
S = –70.00
Z = 0.00
S = -350.00
Z = 0.00
S = 1.000
Z = 0.000
S = 100
Z = 7.0
S = –1.000
M = 0.000
M = 1.0
A = 0.0
No
No
No
Value
2
No
No
1
0
No
Last
Inverted
1
0
0
Last
0
0
Normal
English
00000
00000
Sec
Hrs
Sec
Sec
% nA nA
µV cm -1
Ω nA nA
% pH nA
Ω
109
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
Parameter
Analog Out
All analog out
2
3
Sub parameter
1
4
Mode
Type
Alarm
Hold Mode
Value 4 mA
Conductivity
Resitivity
Value 20 mA
O
2 pH
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
O2(I)***
O2(V)***
Value 4 mA
Value 20 mA
Value 4 mA
Value 20 mA
Dissolved Ozone*** Value 4 mA
Temperature
Set Point 1
Value 20 mA
Value 4 mA
Value 20 mA
Measurement
Type
Conductivity
Resitivity
High Value
Low Value
O
2 pH
High Value
Low Value
High Value
Low Value
High Value O2(I)***
O2(V)***
Low Value
High Value
Low Value
Dissolved Ozone*** High Value
Relay 3
Set Point 2
Low Value
Set point
Measurement
Type
Conductivity
Resitivity
High Value
Low Value
0
0
0
0
0
0
10
20
100
0.000
20.00
0
100 a
Off
0
100
2
12
0
100
0
0
0
50
0
12
0
40.00
0.000
0.000
0.000
0.000
0.000
1 c
Off
Value a b c d
4–20 mA
Normal
Off
Last Value
0.1
10
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Unit
110
Transmitter Multiparameter M300
52 121 389
µS/cm
MΩ-cm
µS/cm
MΩ-cm ppb ppb ppm
°C
°C
%sat
%sat pH pH ppb ppb ppb
µS/cm
MΩ-cm
µS/cm
MΩ-cm
%sat
%sat pH pH ppb ppb ppb ppb ppb ppb
µS/cm
MΩ-cm
µS/cm
MΩ-cm
Transmitter M300
Parameter
O
2 pH
Sub parameter
High Value
Low Value
High Value
O2(I)***
Set Point 4
Low Value
High Value
Low Value
High Value O2(V)***
Relay 4
Resolution
Low Value
Dissolved Ozone*** High Value
Low Value
Set Point
Set Point 3 Measurement
Type
Relay
Measurement
Type
Relay
Conductivity
Resistivity
O
2
Compensation pH
V polarisation**
CalPres
ProcPres
ProcCalPres
Salinity
Humidity
Drift Control
IP
STC
FixCalTemp pH Buffer
Cal info slope
Cal info offset
Standard
* For analogue output signal if relay is switched
** Not adjustable
*** Thornton models only
–675
759.8
759.8
CalPres
0.0
100
Auto
7.0
0.000
No
Mettler-9
[%]
[pH]
2
Auto
_(none)
Off
_(none)
_(none)
Off
_(none)
Value
50
0
12
0
40.00
0.000
0.000
0.000
0.000
0.000
Italics = default values if resitivity instead of coductivity is chosen.
pH ppb ppb ppb
Unit
%sat
%sat pH ppb ppb ppb mV mmHg mmHg g/kg
% pH pH/°C
111
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
17.7
Parameter
Alarm
Clean
Language
Passwords
Lockout
Display
Cal Constants
Analog Out
All analog out
Conductivity
Resitivity
M300 Conductivity (Dual-Channel Instruments,
Thornton Models only)
Unit
All Relays (Unless
Otherwise Specified)
Administrator
Operator
Delay
Hysteresis
State
Hold Mode*
Yes/No
Line 1
Line 2
Line 3
Line 4
Cond/Res
Sub parameter
Relay
Power Failure
Software Failure
Cond Cell Open
Cond Cell Shorted
Hold Mode*
Delay
Hysteresis
State
Relay
Hold Mode*
Interval
Clean time
State
Delay
Hysteresis
Temperature
3
4
1
2
Mode
Type
Alarm
Hold Mode
Value 4 mA
Value 20 mA
Value
2
No
No
No
No
Last
1
0
Inverted
1
Last
0
0
0
0
Normal
English
00000
00000
10
5
Normal
Last
No a (Resistivity) b (Temperature) c (Resistivity) d (Temperature)
M = 0.1
A = 0.0
M = 1.0
A = 0.0
a (Resistivity) b (Temperature) c (Resistivity) d (Temperature)
4–20 mA
Normal
Off
Last Value
0.1
10
10
20
Sec
Hrs
Sec
Sec
%
Ω-cm
°C
Ω-cm
°C cm -1
Ω
Ω
µS/cm
MΩ-cm
µS/cm
MΩ-cm
112
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
Parameter
Temperature
Set Point 1
Conductivity
Resitivity
Relay 3
Set Point 2
Conductivity
Resitivity
Sub parameter
Value 4 mA
Value 20 mA
Measurement
Type
High Value
Low Value
Set point
Measurement
Type
High Value
Low Value
Relay 4
Resolution
Set Point 3
Set Point 4
Set Point
Measurement
Type
Relay
Measurement
Type
Relay
Conductivity
Resistivity
Compensation
* For analogue output signal if relay is switched
0
0
0
0
2
Auto
_(none)
Off
_(none)
_(none)
Off
_(none)
0
0
0
0
1 c
Off
Value
0
100 a (Resistivity)
Off
Standard
Italics = default values if resitivity instead of coductivity is chosen.
Unit
°C
°C
µS/cm
MΩ-cm
µS/cm
MΩ-cm
µS/cm
MΩ-cm
µS/cm
MΩ-cm
113
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300 114
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).
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300 115
19 Certificate
Mettler-Toledo Thornton, Inc., 36 Middlesex Turnpike, Bedford, MA 01730, USA has obtained
Underwriters Laboratories’ listing for M300 Model Transmitters. They bear the cULus Listed mark, signifying that the products have been evaluated to the applicable ANSI/UL and CSA Standards for use in the U.S. and Canada.
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
20 Buffer tables
M300 transmitters have the ability to do automatic pH buffer recognition. The following tables show different standard buffers that are automatically recognized.
116
20.1 Standard pH buffers
60
65
70
40
45
50
55
75
80
85
90
95
Temp (°C)
20
25
30
35
0
5
10
15
20.1.1 Mettler-9
1.98
1.98
1.98
1.98
1.98
1.98
1.99
pH of buffer solutions
2.03
4.01
2.02
2.01
4.01
4.00
2.00
2.00
2.00
1.99
1.99
4.00
4.00
4.01
4.01
4.02
1.99
2.00
2.00
2.00
2.00
4.19
4.22
4.26
4.30
4.35
4.03
4.04
4.06
4.08
4.10
4.13
4.16
6.97
6.97
6.97
6.98
6.98
6.99
7.00
7.12
7.09
7.06
7.04
7.02
7.00
6.99
6.98
7.02
7.04
7.06
7.09
7.12
9.06
9.03
8.99
8.96
8.93
8.90
8.88
9.52
9.45
9.38
9.32
9.26
9.21
9.16
9.11
8.85
8.83
8.81
8.79
8.77
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
85
90
95
65
70
75
80
50
55
60
30
35
40
45
15
20
25
Temp (°C)
0
5
10
20.1.2 Mettler-10
1.99
1.98
1.99
2.00
2.00
2.00
2.00
1.99
1.99
1.98
1.98
1.98
1.98
1.98
pH of buffer solutions
2.03
4.01
2.02
2.01
4.01
4.00
2.00
2.00
2.00
4.00
4.00
4.01
4.01
4.02
4.03
4.04
4.06
4.08
4.10
4.13
4.16
4.19
4.22
4.26
4.30
4.35
20.1.3 NIST Technical Buffers
80
85
90
60
65
70
75
95
40
45
50
55
20
25
30
35
Temp (°C)
0
5
10
15
1.72
1.73
1.74
1.75
1.765
1.78
1.79
1.805
pH of buffer solutions
1.67
4.00
1.67
1.67
1.67
4.00
4.00
4.00
1.675
1.68
1.68
1.69
1.69
1.70
1.705
1.715
4.00
4.005
4.015
4.025
4.03
4.045
4.06
4.075
4.085
4.10
4.13
4.14
4.16
4.18
4.21
4.23
6.97
6.98
6.99
7.01
7.03
7.05
7.08
7.11
7.115
7.085
7.06
7.04
7.015
7.00
6.985
6.98
6.975
6.975
6.97
6.97
6.99
6.98
6.97
6.97
6.97
6.98
6.98
7.12
7.09
7.06
7.04
7.02
7.00
6.99
7.00
7.02
7.04
7.06
7.09
7.12
10.32
10.25
10.18
10.12
10.07
10.01
9.97
9.93
9.89
9.86
9.83
10.65
10.52
10.39
10.26
10.13
10.00
9.87
9.74
9.61
9.48
9.35
13.42
13.21
13.01
12.80
12.64
12.46
12.30
12.13
11.99
11.84
11.71
11.57
11.45
117
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300 h
118
20.1.4 NIST standard buffers (DIN and JIS 19266: 2000–01)
50
55
60
30
35
40
45
70
80
90
95
15
20
25
Temp (°C)
0
5
10 pH of buffer solutions
1.668
1.670
1.672
1.676
1.680
1.685
1.694
1.697
1.704
1.712
1.715
1.723
1.743
1.766
1.792
1.806
4.004
4.001
4.001
4.003
4.008
4.015
4.028
4.036
4.049
4.064
4.075
4.091
4.126
4.164
4.205
4.227
6.950
6.922
6.900
6.880
6.865
6.853
6.841
6.837
6.834
6.833
6.834
6.836
6.845
6.859
6.877
6.886
9.392
9.331
9.277
9.228
9.184
9.144
9.095
9.076
9.046
9.018
8.985
8.962
8.921
8.885
8.850
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.
20.1.5 Hach buffers
Buffer values up to 60 °C as specified by Bergmann & Beving Process AB.
35
40
45
50
55
60
Temp (°C)
20
25
30
0
5
10
15
4.02
4.03
4.05
4.06
4.07
4.09
pH of buffer solutions
4.00
4.00
4.00
4.00
4.00
4.01
4.01
6.98
6.98
6.98
6.98
6.98
6.99
7.14
7.10
7.04
7.04
7.02
7.00
6.99
9.92
9.88
9.85
9.82
9.79
9.76
10.30
10.23
10.11
10.11
10.05
10.00
9.96
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
85
90
95
65
70
75
80
50
55
60
30
35
40
45
15
20
25
Temp (°C)
0
5
10
* Extrapolated
20.1.6 Ciba (94) buffers
2.07*
2.07
2.04*
2.02
2.03*
2.04
2.05*
2.06
2.06
2.07
2.06
2.06
2.05
2.08
pH of buffer solutions
2.04
4.00
2.09
2.07
4.02
4.00
2.08
2.09
2.08
4.00
4.01
4.02
4.00
4.01
4.02
4.03
4.04
4.05
4.10
4.10*
4.11
4.13*
4.15
4.17*
4.20
4.22*
6.96
6.95
6.94
6.93
6.93
6.91
6.93
7.10
7.08
7.05
7.02
6.98
6.98
6.92*
6.92
6.92*
6.93
6.95*
6.97
6.99*
60
65
70
40
45
50
55
75
80
85
90
95
Temp (°C)
20
25
30
35
0
5
10
15
20.1.7 Merck Titrisole, Riedel-de-Haën Fixanale
2.00
2.00
2.00
2.00
2.00
2.00
2.01
pH of buffer solutions
2.01
4.05
2.01
2.01
4.05
4.02
2.00
2.00
2.00
2.00
2.00
4.01
4.00
4.01
4.01
4.01
2.01
2.01
2.01
2.01
2.01
4.00
4.00
4.00
4.00
4.00
4.01
4.01
4.00
4.00
4.00
4.00
4.00
6.95
6.95
6.95
6.95
6.96
6.96
6.96
7.13
7.07
7.05
7.02
7.00
6.98
6.98
6.96
6.96
6.97
6.98
7.00
7.02
8.85
8.82
8.79
8.76
8.73
8.72
8.70
9.24
9.16
9.11
9.05
9.00
8.95
8.91
8.88
8.68
8.66
8.65
8.64
8.64
11.54
11.44
11.33
11.19
11.04
10.97
10.90
12.58
12.41
12.26
12.10
12.00
11.88
11.72
11.67
10.80
10.70
10.59
10.48
10.37
9.89
9.85
9.81
9.77
9.73
9.68
9.66
10.30
10.21
10.14
10.06
9.99
9.95
9.61*
9.57
9.54*
9.52
9.47*
9.43
9.38*
119
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
85
90
95
65
70
75
80
50
55
60
30
35
40
45
15
20
25
Temp (°C)
0
5
10
20.1.8 WTW buffers
1.99
1.99
1.98
1.98
1.98
1.98
1.98
pH of buffer solutions
2.03
4.01
2.02
2.01
4.01
4.00
2.00
2.00
2.00
4.00
4.00
4.01
1.99
4.01
4.02
4.03
4.04
4.06
4.08
4.10
4.13
4.16
4.19
4.22
4.26
4.30
4.35
20.1.9 JIS Z 8802 buffers
55
60
70
80
90
95
38
40
45
50
20
25
30
35
Temp (°C)
0
5
10
15 pH of buffer solutions
1.666
4.003
1.668
1.670
1.672
3.999
3.998
3.999
1.675
1.679
1.683
1.688
1.691
1.694
1.700
1.707
4.002
4.008
4.015
4.024
4.030
4.035
4.047
4.060
1.715
1.723
1.743
1.766
1.792
1.806
4.075
4.091
4.126
4.164
4.205
4.227
6.99
6.98
6.97
6.97
6.97
6.98
6.98
7.12
7.09
7.06
7.04
7.02
7.00
6.99
7.00
7.02
7.04
7.06
7.09
7.12
6.984
6.951
6.923
6.900
6.881
6.865
6.853
6.844
6.840
6.838
6.834
6.833
6.834
6.836
6.845
6.859
6.877
6.886
9.464
9.395
9.332
9.276
9.225
9.180
9.139
9.102
9.081
9.068
9.038
9.011
8.985
8.962
8.921
8.885
8.850
8.833
10.65
10.52
10.39
10.26
10.13
10.00
9.87
9.74
9.61
9.48
9.35
120
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
Transmitter M300
20.2 Dual membrane pH electrode buffers
20.2.1 Mettler-pH/pNa buffers (Na+ 3.9M)
Temp (°C)
0
25
30
35
5
10
15
20
40
45
50 pH of buffer solutions
1.98
3.99
1.98
1.99
1.99
1.99
2.00
2.00
2.01
2.01
2.02
2.02
4.05
4.07
4.09
3.99
3.99
3.99
4.00
4.01
4.02
4.04
7.01
7.00
7.00
6.99
7.00
7.00
7.01
7.01
7.02
7.03
7.04
9.51
9.43
9.36
9.30
9.25
9.21
9.18
9.15
9.12
9.11
9.10
121
© 01 / 2016 Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Printed in Switzerland
Transmitter Multiparameter M300
52 121 389
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