Swan Analytical Instruments AMI Sodium P Operator's Manual
AMI Sodium P
Version 6.00 and higher
s Manual
Operator’
A-96.250.211 / 200416
Customer Support
SWAN and its representatives maintain a fully trained staff of technical specialists
around the world. For any technical question, contact your nearest
SWAN representative, or the manufacturer:
SWAN ANALYTISCHE INSTRUMENTE AG
Studbachstrasse 13
8340 Hinwil
Switzerland
Internet: www.swan.ch
E-mail: support@swan.ch
Document Status
Title:
ID:
Monitor AMI Sodium P Operator’s Manual
A-96.250.211
Revision Issue
00 April 2005 First edition
04 October 2011 Update to Firmware Release 4.50
05 April 2014 Main board V2.4, Update to Firmware Release 5.40
06 April 2016 Main board V2.5, Update to Firmware Release 6.00
© 2016, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved
subject to change without notice
AMI Sodium P
Table of Contents
1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Warning Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2. General Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3. Restrictions for use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1. Instrument Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2. Instrument Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1. Installation Check List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2. Mounting of Instrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3. Connect Sample and Waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.1 FEP Tube at Sample Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.2 Sample Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4. Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.1 Install the Sodium Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.2 Install the Reference Electrode . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.3 Install the pH Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4.4 Install the Temperature Sensor. . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4.5 Install reagent bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.5. Install 2nd Sample Stream (Option) . . . . . . . . . . . . . . . . . . . . . . . 29
3.5.1 Connect the solenoid valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.5.2 Firmware settings for 2nd sample stream option . . . . . . . . . . . 31
3.6. AMI Sodium P connected to a Sample Sequencer . . . . . . . . . . . 32
3.7. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.7.1 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.8. Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.8.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.8.2 Alarm Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.8.3 Relay 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.9. Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.9.1 Signal Output 1 and 2 (current outputs) . . . . . . . . . . . . . . . . . . 40
3.10. Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.10.1 Signal Output 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.10.2 Profibus, Modbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.10.3 USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.11. Connection of Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A-96.250.211 / 200416 1
AMI Sodium P
4. Instrument Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.1. Install Reagent Bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.2. Establish Sample Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.3. Switch on Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.4. Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.5. Check Outputs and Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.6. Perform a calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.1. Keys, Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.2. Software Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.3. Changing Parameters and Values . . . . . . . . . . . . . . . . . . . . . . . . 50
5.4. Grab Sample. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.1. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.2. Stop of Operation for Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 52
6.3. Maintenance of Sodium Electrode . . . . . . . . . . . . . . . . . . . . . . . . 53
6.4. Maintenance of Reference Electrode . . . . . . . . . . . . . . . . . . . . . . 55
6.5. Maintenance of pH Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.6. Maintenance of Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.7. Maintenance of Flow Cell and Constant Head . . . . . . . . . . . . . . . 59
6.7.1 Cleaning the Flow cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.7.2 Cleaning the Constant Head . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.8. Replace the Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6.9. Prepare Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.10. Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.10.1 pH Process Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.10.2 Standard Sodium 1-Point-Calibration . . . . . . . . . . . . . . . . . . . . 65
6.10.3 2-Point-Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.11. Tube Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.11.1 Tube Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.11.2 Replace the Reaction Tube. . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6.11.3 Replace the EPDM Seal and the Air Inlet Tube . . . . . . . . . . . . 70
6.12. Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.13. Longer Stop of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
2 A-96.250.211 / 200416
AMI Sodium P
7. Error List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8. Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.1. Messages (Main Menu 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.2. Diagnostics (Main Menu 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.3. Maintenance (Main Menu 3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.4. Operation (Main Menu 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
8.5. Installation (Main Menu 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9. Program List and Explanations. . . . . . . . . . . . . . . . . . . . . . . . . 81
1 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
10. Material Safety Data Sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
10.1. Reagents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
11. Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
12. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
13. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
A-96.250.211 / 200416 3
AMI Sodium P
Safety Instructions
AMI Sodium P - Operator’s Manual
This document describes the main steps for instrument setup, operation and maintenance.
1. Safety Instructions
General The instructions included in this section explain the potential risks
Targ et
audience
OM Location The AMI Operator’s Manual shall be kept in proximity of the instru-
Qualification,
Training
associated with instrument operation and provide important safety
practices designed to minimize these risks.
If you carefully follow the information contained in this section, you
can protect yourself from hazards and create a safer work environment.
More safety instructions are given throughout this manual, at the
respective locations where observation is most important.
Strictly follow all safety instructions in this publication.
Operator: Qualified person who uses the equipment
for its intended purpose.
Instrument operation requires thorough knowledge of applications,
instrument functions and software program as well as all applicable
safety rules and regulations.
ment.
To be qualified for instrument installation and operation, you must:
read and understand the instructions in this manual as well as
the Material Safety Data Sheets.
know the relevant safety rules and regulations.
4 A-96.250.211 / 200416
AMI Sodium P
Safety Instructions
1.1. Warning Notices
The symbols used for safety-related notices have the following significance:
DANGER
Your life or physical wellbeing are in serious danger if such
warnings are ignored.
Follow the prevention instructions carefully.
WARNING
Severe injuries or damage to the equipment can occur if such
warnings are ignored.
Follow the prevention instructions carefully.
CAUTION
Damage to the equipment, minor injury, malfunctions or incorrect process can be the consequence if such warnings are ignored.
Follow the prevention instructions carefully.
Mandatory
Signs
A-96.250.211 / 200416 5
The importance of the mandatory signs in this manual.
Safety goggles
Safety gloves
AMI Sodium P
Safety Instructions
Warning Signs The importance of the warning signs in this manual.
Electrical shock hazard
Corrosive
Harmful to health
Flammable
Warning general
Attention general
6 A-96.250.211 / 200416
AMI Sodium P
Safety Instructions
1.2. General Safety Regulations
Legal
Requirements
Spare Parts
and
Disposables
Modifications Modifications and instrument upgrades shall only be carried out by
The user is responsible for proper system operation.
All precautions must be followed to ensure safe operation
of the instrument.
Use only official SWAN spare parts and disposables. If other parts
are used during the normal warranty period, the manufacturer’s
warranty is voided.
an authorized Service Technician. SWAN will not accept responsibility for any claim resulting from unauthorized modification or alteration.
WARNING
Risk of Electrical Shock
If proper operation is no longer possible, the instrument must be
disconnected from all power lines, and measures must be taken
to prevent inadvertent operation.
To prevent from electrical shock, always make sure that the
ground wire is connected.
Service shall be performed by authorized personnel only.
Whenever electronic service is required, disconnect instru-
ment power and power of devices connected to.
– relay 1,
– relay 2,
– alarm relay
WARNING
For safe instrument installation and operation you must read
and understand the instructions in this manual.
WARNING
Only SWAN trained and authorized personnel shall perform the
tasks described in this document.
A-96.250.211 / 200416 7
AMI Sodium P
Safety Instructions
1.3. Restrictions for use
The sample must not contain any particles, which may block the
flow cell. Sufficient sample flow is coercive for the correct function
of the instrument.
This instrument is only applicable to waters of a pH value higher
than 7.
Only SWAN trained and authorized personnel shall perform the
tasks described in this document.
WARNING
For safe instrument installation and operation you must read
and understand the instructions in this manual, as well as the
Material Safety Data Sheets (MSDS)
Etching kit for sodium electrode (powder + liquid)
Sodium calibration solution
Electrolyte for reference electrode
Alcalizing reagent (e. g. Diisopropylamine)
Download
MSDS
The current Material Safety Data Sheets (MSDS) for the below listed Reagents are available for downloading at www.swan.ch.
8 A-96.250.211 / 200416
AMI Sodium P
Product Description
2. Product Description
Application Sodium measurement is used for quality control in high purity water
applications and to monitor break through of mixed bed ion exchangers, condenser leaks and the prevention of caustic corrosion
of turbines. The AMI Sodium P is suitable for samples with a pH
value higher than pH7. For samples with a pH lower than pH7, use
the AMI Sodium A.
Measuring
principle
Signal
Outputs
Relay Two potential-free contacts programmable as limit switches for
The sodium measurement used in this instrument is based on a potentiometric measuring method. For this purpose a proven sodium
ion sensitive glass electrode and a reference electrode is used.
These two electrodes produce a different electrical potential which
is used to calculate the sodium concentration of the sample. According to Nernsts Law, the ion concentration depends on the temperature, therefore a temperature sensor measures the sample
temperature. With the current temperature the measuring value is
expressed for the standard temperature of 25 °C by using programmed temperature compensation curves.
Sodium measurements below 1 ppb require a special glass formulation for the sensing electrode response.
Ammonium and pH interferences from the unconditioned sample
are eliminated by a suitable reagent. The measuring limit of 0.1 ppb
sodium requires the conditioning of the sample to a minimum of
pH 10.5 while sample integrity has to be maintained. The best results are obtained with Diisopropylamine (DIPA).
Two signal outputs programmable for measured values (freely scalable, linear or bilinear) or as continuous control output (control parameters programmable).
Current loop: 0/4 - 20 mA
Maximal burden: 510
Third signal output available as an option.
measuring values, controllers or timer for system cleaning with automatic hold function.
Maximum load: 1 A / 250 VAC
A-96.250.211 / 200416 9
AMI Sodium P
Product Description
Alarm Relay One potential free contact. Alternatively:
Open during normal operation, closed on error and loss of
power.
Closed during normal operation, open on error and loss of
power.
Summary alarm indication for programmable alarm values and instrument faults.
Input For potential-free contact to freeze the measuring value or to inter-
rupt control in automated installations (hold function or remote-off).
Safety
Features
Communica-
tion Interface
(optional)
Consumables The filling of the 100 ml KCl Bottle lasts for one month of operation.
On-line
Operation
No data loss after power failure. All data is saved in non-volatile
memory. Over voltage protection of in- and outputs.Galvanic separation of measuring inputs and signal outputs.The analyzer is factory tested and ready for installation and operation.
USB Interface for logger download.
RS485 Interface with Fieldbus protocol Modbus or Profibus DP.
The sample flows via the sample inlet [D] and the flow regulating
valve [C] into the constant head [A]. Adjust the flow regulating valve
so that always a small part of the sample flows through the overflow
tube [M] into the waste. This adjustment ensures a sufficient sample flow through the flow cell [K]. First the sample flows into the
measuring chamber [K
and the sodium concentration of the sample is measured. From
there it flows into the measuring chamber [K2] where the pH electrode [F], the temperature sensor [H] and the reference electrode
[E] are installed and thereafter it flows via flow cell [K3] through the
sample outlet [L].
During on-line operation, the standard bottle holder [Q] is completely turned down, and the sample flows from the constant head [A]
into the reaction tube [B].
Due to the different level of the constant head and the flow cell, a
negative pressure is created in the reaction tube [B]. As a result, reagent saturated air is sucked into the reaction tube, raising the pH
of the sample to a value of 10.5, and forming a regular stream of air
bubbles [J].
The bubble stream is used to monitor the correct sample flow with
the bubble detector [I]. An inconsistent sample flow causes an interruption of the bubble formation and produces a system error.
] where the sodium electrode [G] is installed
1
10 A-96.250.211 / 200416
AMI Sodium P
A
B
C
D
E
E
F
F
G
G
H
H
I
J
L
M
K
K
1
K
2
K
3
N
O
P
R
S
Q
Product Description
Fluidics
A-96.250.211 / 200416 11
A
Constant head
B
Reaction tube
C
Flow regulating valve
D
Sample inlet
E
Reference electrode
F
pH electrode
G
Sodium electrode
H
Temperature sensor
I
Bubble counter
J
Sample with air bubbles
K
Flow cell
L
Sample outlet
M
Overflow tube
N
Air inlet filter
O
Air tube to DIPA bottle
P
Tube with DIPA saturated air
Q
Standard bottle holder
R
Reagent bottle
S
Flow cell top view
AMI Sodium P
Product Description
Second
Sample Stream
Sample
Sequencer
Grab Sample The standard bottle holder can also be used for a grab sample
Calibration A standard bottle is screwed in the standard bottle holder [Q] and
If required the AMI Sodium P can be equipped with the optional
second sample stream module. To install the 2nd sample stream
option a AMI Sodium P with 400 mm panel with is required.
If measurement of more than two sample streams is required, the
AMI Sodium P can be connected to a Sample Sequencer which allows to measure up to six sample streams.
measurement. Grab sample measurement see Grab Sample, p.
51.
turned upwards into the vertical position, thus switching the sample
flow from the constant head to the standard bottle. Constant pressure within the standard bottle is maintained by the pressure-equalizing tube inside the bottle.
1 liter standard is consumed in approx. 10 min. The sodium electrode must reach constant readings within this time to obtain an exact calibration.
For details, see Calibration, p. 42.
12 A-96.250.211 / 200416
AMI Sodium P
Product Description
2.1. Instrument Specification
Power Supply Voltage:
Power consumption:
Electronics Aluminium with a protection degree of IP 66 / NEMA 4X
housing Ambient temperature:
Limit range of operation:
Storage and transport:
Humidity:
Display:
Sample
requirements
On-site The analyzer site must permit connections to:
requirements Sample inlet:
pH Value:
Ammonium concentration:
Flow rate:
Temperature:
Inlet pressure:
Outlet pressure:
NOTICE: No oil, no grease, no sand.
Sample outlet:
Max. Altitude:
100–240 VAC (± 10%)
50/60 Hz (± 5%)
or 24 VDC (± 10%)
max. 30 VA
-10 to +50 °C
-25 to +65 °C
-30 to +85 °C
10–90% rel., non condensing
backlit LCD, 75 x 45 mm
pH 7.0
< 10 ppm
min. 100 ml/min.
5–45 °C (41–113 °F)
0.3–3 bar (4 – 43 PSI)
pressure free
Tube 4 x 6 mm
1/2” hose nozzle for flexible tube diam.
20x15 mm
2000 m above sea level
A-96.250.211 / 200416 13
AMI Sodium P
Exit Enter
824 mm / 32
7
/
16
”
850 mm / 33½”
13 mm / ½”
280 mm / 11”
254 mm / 10”
13 mm / ½”
4 x dia. 10 mm
3
/
8
”
Product Description
Dimensions: Panel:
Mounting hole distance:
Screws:
Weight:
280 x 850 x 200 mm
254 x 824 mm
8 mm diameter
9.0 kg / 19.85 lbs without sample water
14 A-96.250.211 / 200416
AMI Sodium P
Exit Enter
824 mm / 32
7
/
16
”
850 mm / 33½”
13 mm / ½”
400 mm / 11”
374 mm / 10”
13 mm / ½”
4 x dia. 10 mm
3
/
8
”
Product Description
Dimensions
with 2nd
sample stream
Panel:
Mounting hole distance:
Screws:
Weight:
400 x 850 x 200 mm
374 x 824 mm
8 mm diameter
12.0 kg / 26.5 lbs without sample water
A-96.250.211 / 200416 15
AMI Sodium P
A
Product Description
2.2. Instrument Overview
B
J
K
C
D
E
F
G
H
I
A
Transmitter
B
Panel
C
Reference electrolyte bottle
nd
sample stream (option)
D
2
Flow regulating valve
E
Sample inlet
F
pH electrode
G
Sodium electrode
H
Bubble detector
I
L
M
N
O
P
Q
J
Air filter
K
Constant head
L
Standard bottle/Grab sample
M
Standard bottle holder
N
Reference electrode
O
Temperature sensor
P
Reagent bottle
Q
Sample outlet
16 A-96.250.211 / 200416
AMI Sodium P
Installation
3. Installation
3.1. Installation Check List
Check Instrument’s specification must conform to the National Electrical
Code, all state and local codes, and all plant codes and standards
for electrical equipment.
On site requirements
Installation Install the instrument in vertical position.
Electrodes Sodium electrode: Install the Sodium Electrode, p. 21.
Reagent and
filter connections
100 - 240 VAC ( 10%), 50/60 Hz ( 5%) or 24 VDC, isolated
(±10%) power outlet with ground connection and 30 VA
Sample line with min. 100 ml/min and 0.3–3.0 bar (4–43 psi)
Waste line with pressure free drain.
See Connecting Sample and Waste, p. 21.
Display should be at eye-level.
Connect the sample and waste line(s).
See Connecting Sample and Waste, p. 21
Etch the sodium electrode
Rinse it well and check for air bubbles inside the electrode.
Install the sodium electrode.
Connect cable S to the sodium electrode.
Reference electrode: Install the Reference Electrode, p. 23.
Install KCl bottle,
Check the ground joint diaphragm
Install the reference electrode.
Puncture the KCl bottle.
Connect cable R to the reference electrode.
pH electrode: Install the pH Electrode, p. 27.
Install the pH electrode.
Connect cable pH to the pH electrode
We recommend to use DIPA to operate the instrument. Use a
reagent bottle with either G45 thread (Schott) or a bottle from
Merck using a thread adapter. Close the bottle well to prevent the
formation of reagent vapors. For installation see Install Reagent
Bottle, p. 44.
Install the air filter.
A-96.250.211 / 200416 17
AMI Sodium P
Installation
Electrical Wiring
Power-up Turn on the sample flow and wait until the measuring cell is com-
Instrument
Setup
Run-in period Let the instrument run continuously for 1 h.
Calibrate pH See pH Process Calibration, p. 43
Calibration
Sodium electrode
NOTICE: Do not switch on the Instrument until all electrical
connections are made.
Connect all external devices like limit switches, see Electrical Con-
nections, p. 22.
Connect power cord.
pletely filled.
Adjust the sample flow until the bubble stream is regular.
Switch on power. See Establish Sample Flow, p. 39
Program all parameters for external devices (interface, recorders,
etch.). Program all parameters for instrument operation (limits,
alarms, measuring interval).
Rinse the standard bottles well with deionized water. Prepare the
sodium standards directly in the graduated standard bottles using
a precision pipette. Make sure the concentrations are programmed
correctly. Perform a two point calibration.
See Calibration, p. 64
3.2. Mounting of Instrument Panel
The first part of this chapter describes the preparing and placing of
the instrument for use.
The instrument must only be installed by trained personnel.
Mount the instrument in vertical position.
For ease of operation mount it so that the display is at eye
level.
For the installation a kit containing the following installation
material is available:
– 4 Screws 8x60 mm
– 4 Dowels
– 4 Washers 8.4/24 mm
Mounting re-
quirements
The instrument is only intended for indoor installation.
For dimensions see Dimensions:, p. 14 or Dimensions with 2nd
sample stream, p. 15.
18 A-96.250.211 / 200416
AMI Sodium P
Installation
3.3. Connect Sample and Waste
3.3.1 FEP Tube at Sample Inlet
Use plastic tube 4 x 6 mm to connect the sample line.
Mounting of
SERTO fitting
CAUTION
Damage of acrylic glass flow cell
Never screw steel fittings directly into the threads of the acrylic
glass.
Only use steel tubings with special fitting.
A
A
B
C
D
Screw connection
B
Compression ferrule
C
Knurled nut
D
Flexible tube
3.3.2 Sample Outlet
WARNING
Risk of water pollution
The drain of the Flow cell outlet contains Diisopropylamine
(DIPA)
At no means recirculate it into the water system.
ABHose nozzle
1/2” tube
A
B
Connect the 1/2” tube [B] to the hose nozzle [A] and place it into a
pressure free drain with sufficient capacity.
A-96.250.211 / 200416 19
AMI Sodium P
A
B
C
D
E
Installation
3.4. Install Sensors
CAUTION
The electrodes are made of glass and therefore very sensitive.
Handle with care.
Position of
sensors
A
Reference electrode, cable
marked with R
B
pH electrode, cable marked
with PH
C
Sodium electrode, cable
marked with S
D
Temperature sensor, cable
marked with T
E
Flow cell cover
Unpacking The electrodes are supplied separately and are installed into the
flow cell after mounting of the instrument panel. The electrodes are
protected with protective caps at their tips as well as on the electrical connectors.
Remove the connector caps from the connector only when the
electrode is mounted in the measuring cell.
20 A-96.250.211 / 200416
AMI Sodium P
A
Installation
3.4.1 Install the Sodium Electrode
General Sodium electrodes are sensitive, electrochemical devices with a
very high internal impedance. To maintain correct operation make
sure that:
The electrode is delivered with protective caps on the sensing glass
bulb as well as on the electrical connector.
B
C
D
the sensing glass bulb stays clean.
no air bubbles are trapped in the glass bulb of the electrode.
the electrical connectors stay clean and dry.
E
F
G
H
A-96.250.211 / 200416 21
I
A
Sensor plug
B
Connector cap
C
Electrode shaft
D
Measuring chamber hole
E
Sensing glass bulb
F
Union screw
G
Washer
H
O-ring
I
Protective cap
AMI Sodium P
Installation
Install the sodium electrode as follows:
1 Remove the protective cap [I] from the electrode with a careful
2 Etch the electrode, see Cleaning and etching, p. 54 and note
3 Rinse the electrode with demineralized water.
4 Slip the union nut [F], and washer [G] on the electrode shaft [C].
5 Wet the O-ring [H] and slip it carefully over the electrode shaft
6 Make sure no air bubbles are trapped in the sensing glass bulb
7 Insert the electrode through the measuring chamber hole [D]
8 Tighten the union screw [F] finger tight.
9 Remove the connector cap [B] from the electrode.
10 Screw the connector [A], of the cable marked with S, onto the
11 Connect the cable to the front end in the AMI Transmitter, see
turning and pulling movement.
the warning about handling of the chemicals.
[C].
[E]. Shake the electrode like a clinical thermometer with its tip
pointing downwards until the bubble is vanished.
into the measuring chamber and push down completely.
electrode.
Connection of Sensors, p. 43.
22 A-96.250.211 / 200416
AMI Sodium P
A
B
C
Installation
3.4.2 Install the Reference Electrode
General The SWAN reference electrode is a double junction Calomel / KCl
type electrode. The outer liquid junction is a liquid glass sleeve,
guaranteeing easy maintenance and long life time.
To maintain correct operation make sure that:
the ground joint diaphragm stays clean and a KCl flow of
about 1ml/day is maintained.
no air bubbles are trapped in the electrode and in the tube to
the KCl reservoir.
the electrical connectors stay clean and dry.
CAUTION
KCL is corrosive
Do not let electrolyte drop on the measuring cell.
Prepare the
KCl Bottle
1 Remove the seal cap [A] from the dosing tip [B].
2 Cut off the upper sealed part of the dosing tip.
A-96.250.211 / 200416 23
A
Seal cap
B
Dosing tip
C
KCl bottle
AMI Sodium P
A
B
C
D
E
F
G
Installation
Prepare the
reference
electrode
After longer storage of the reference electrode, the diaphragm may
be clogged wit salt deposits of KCl. Therefore it is recommended to
open and clean the diaphragm before installing the reference electrode.
A
KCl supply tube
B
Trapped air bubble
C
Reference electrode
D
Ring-shaped sleeve opened
E
Electrolyte outlet hole
F
Ring-shaped sleeve closed
G
Protective cap
To clean the reference electrode proceed as follows:
1 Remove the protective cap [G] from the ground joint diaphragm
with a careful turning and pulling movement.
2 Hold the reference electrode with the ground joint diaphragm
pointing downwards.
3 Slightly lift the ring-shaped sleeve of the ground-joint diaphragm
and allow a little electrolyte to flow out into a tissue.
4 Rinse the electrode tip well with deionized water.
5 Push the ring-shaped sleeve carefully over the ground-joint dia-
phragm.
6 While holding the electrode tip pointing downwards pull the KCI
supply tube several times so that the air bubbles can escape
upwards.
24 A-96.250.211 / 200416
AMI Sodium P
E
A
D
C
B
F
H
G
H
I
J
K
L
Installation
Install the
reference
electrode
A
KCl Bottle
B
C
D
E
F
A-96.250.211 / 200416 25
Install the reference electrode as follows:
1 Remove the stopper [D] from the KCl supply tube [E].
2
3 Fix the KCl bottle upside down in the holder on the panel.
4 Puncture the bottle bottom to allow pressure equilibration.
Trapped air bubble
Dosing tip
Stopper
KCl supply tube
Sensor plug
Connect the KCl supply tube to the dosing tip [C] of the KCl bottle.
G
Connector cap
H
Reference chamber hole
I
Electrode shaft
J
Union screw
K
Washer
L
O-ring
AMI Sodium P
Installation
5 Knock against the KCl bottle to remove trapped air bubbles [B]
6 Slip the union screw [J], and washer [K] on the electrode shaft
7
8 Insert the electrode through the hole [H] into the reference
9 Tighten the union screw [J] finger tight.
10 Remove the connector cap [G] from the electrode.
11 Screw the connector [F], of the cable marked with R, onto the
12 Connect the cable to the front end in the AMI Transmitter, see
in the dosing tip.
NOTICE: Air bubbles trapped in the dosing tip of the KCl bottle
may stop the KCl flow to the reference electrode, which results
in wrong measuring values.
[I].
Wet the O-ring [L] and slip it carefully over the electrode shaft [I].
chamber and push it down until the ground joint diaphragm is
about 0.5 cm above the bottom.
electrode.
Connection of Sensors, p. 43.
26 A-96.250.211 / 200416
AMI Sodium P
A
B
C
D
E
F
G
H
Installation
3.4.3 Install the pH Electrode
A
Connector cap
B
Sensor plug
C
Sensor shaft
D
Protective cap
E
Union screw
F
Washer
G
O-ring
H
pH sensor hole
1 Carefully remove the protective cap [D] from the electrode tip.
Turn it clockwise only.
2 Rinse the electrode tip with clean water.
3 Slip union screw [E], and washer [F] on the electrode shaft [C].
4 Wet the O-ring [G] and slip it carefully over the electrode shaft.
5 Insert the electrode through the hole [H] in into the flow cell.
6 Tighten the union screw [E] hand-tight.
7 Remove the connector cap [A].
8 Screw the connector [B], of the cable marked with pH, onto the
pH electrode.
9 Keep the protective caps on a secure place for later use.
10 Connect the cable to the front end in the AMI Transmitter, see
Connection of Sensors, p. 43.
A-96.250.211 / 200416 27
AMI Sodium P
A
B
C
D
E
Installation
3.4.4 Install the Temperature Sensor
The temperature sensor is fixed to the panel with an adhesive tape
and already connected to the front end PCB in the AMI transmitter.
A
Temperature sensor
B
Reference sensor
C
pH sensor
D
Sodium sensor
E
Temperature sensor
hole
To install the temperature sensor proceed as follows:
1 Remove the temperature sensor [A] from the panel.
2 Insert the temperature sensor through the hole [E] into the flow
cell.
3 Push it into the hole as far as it will go.
3.4.5 Install reagent bottle
The DIPA bottle will be installed only shortly before commissioning,
see chapter 4, Install Reagent Bottle, p. 44.
28 A-96.250.211 / 200416
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