AMI Silitrace
Version 6.31 and higher
s Manual
Operator’
A-96.250.811 / 091017
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 Silitrace Operator’s Manual
A-96.250.811
Revision Issue
00 Okt. 2015 First Edition
01 Aug. 2016 Update to FW Release 6.20, Mainboard Rev. 2.5
02 Mar. 2017
Update to FW Release 6.30 (includes multi-channel
capability)
© 2017, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved
subject to change without notice.
AMI Silitrace
Table of Contents
1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Warning Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2. General Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1. Description of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2. Instrument Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3. Instrument Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1. Installation Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2. Mounting of Instrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3. Connect Sample and Waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 AMI Silitrace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 AMI Silitrace Dual-Stream. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.1 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.5. Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5.2 Alarm Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5.3 Relay 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.6. Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.6.1 Signal Output 1 and 2 (current outputs) . . . . . . . . . . . . . . . . . . 26
3.7. Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.7.1 Signal Output 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.7.2 Profibus, Modbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.7.3 HART Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.7.4 USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4. Instrument Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1. Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2 Prepare Reagents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3. Prepare Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.4. Switch on Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.5. Adjust Sample Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6. Activate the Peristaltic pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.7. Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.7.1 AMI Sample Sequencer (Option) . . . . . . . . . . . . . . . . . . . . . . . 36
4.8. Final Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
A-96.250.811 / 091017 1
AMI Silitrace
5. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.1. Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.2. Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3. Software Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4. Changing Parameters and values. . . . . . . . . . . . . . . . . . . . . . . . . 44
5.5. Grab Sample Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.1. Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2. Stop of Operation for Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 47
6.3. Refill or Replace Reagents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4. Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.5. Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.6. Zero. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.7. Replace the Pump Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.8. Fill System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.9. Clean the Photometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.10. Longer Stop of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.1. Error List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.2. Replace the reaction chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.3. Replace the 6-Way Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
7.4. Replace the Cuvette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.5. Replace the Reagent Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.6. Cleaning the solenoid valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.7. Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
8. Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.1. Messages (Main Menu 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.2. Diagnostics (Main Menu 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.3. Maintenance (Main Menu 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.4. Operation (Main Menu 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.5. Installation (Main Menu 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9. Program List and Explanations. . . . . . . . . . . . . . . . . . . . . . . . . 79
1 Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
2 A-96.250.811 / 091017
AMI Silitrace
10. Safety Data sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
11. Default Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
12. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
13. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
A-96.250.811 / 091017 3
AMI Silitrace
Safety Instructions
AMI Silitrace - 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
Target
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-96.250.811 / 091017
AMI Silitrace
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-96.250.811 / 091017 5
The importance of the mandatory signs in this manual.
Safety goggles
Safety gloves
AMI Silitrace
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
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.
6 A-96.250.811 / 091017
AMI Silitrace
Safety Instructions
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.
Download
MSDS
A-96.250.811 / 091017 7
The current Safety Data Sheets (SDS) for the above listed Reagents are available for downloading at www.swan.ch.
AMI Silitrace
Product Description
2. Product Description
2.1. Description of the System
Application
Range
Photometrical
Detection of
Silica
Instrument
variants
Sample
Sequencer
Automatic
calibration and
verification
The AMI Silitrace is a complete monitoring system for the automatic,
continuous measurement of the dissolved silica content in water
steam cycles or demineralizer plants.
The determination of silica is done by the photometric analysis of
molybdate blue at 815 nm.
Silica and ortho-phosphates react at low pH with ammonium molybdate to the yellow colored molybdosilic acid respectively molybdophosphoric acid. The molybdophosphoric acid is destroyed with
oxalic acid before the molybdosilic acid is reduced with iron-(II)-ammonium-sulfate to the heteropolyblue complex.
Especially the reaction speed of the first reaction step to the molybdosilic acid is relatively slow. It is the most time consuming part of
the whole reaction. As the reaction speed increases with increasing
temperature, it is time saving to heat up the sample. The AMI Silitrace therefore uses a thermostatic reaction chamber with a constant temperature of 45 °C.
At 45 °C the complete reaction only needs 150 s (2.5 min). Because the reaction time plays an important role in the color development, the pump speed is adjusted constantly. Due to the
automatic heating and reaction time regulation a very high precision is achieved.
The AMI Silitrace is available in two variants:
AMI Silitrace
AMI Silitrace Dual-Stream
Both instruments are identical except that the AMI Silitrace DualStream includes a channel selector valve.
If measurement of more than two sample streams is required, the
AMI Silitrace can be connected to a Sample Sequencer, which allows to measure up to six sample streams.
A calibration, verification or zero measurement can be performed
automatically according to a programmed time schedule or started
manually.
8 A-96.250.811 / 091017
AMI Silitrace
Product Description
Grab sample Easy to use grab sample function.
Signal
Outputs
Relays Two potential-free contacts programmable as limit switches for
Alarm Relay One potential free contact.
Input One input for potential-free contact to freeze the measuring value
Communica-
tion Interface
(optional)
Safety
Features
Two signal outputs programmable for measured values (freely scalable, linear, bilinear, log) or as continuous control output (control
parameters programmable).
Current loop: 0/4–20 mA
Maximal burden: 510 Ohm
Third signal output available as an option. The third signal output
can be operated as a current source or as a current sink (selectable
via switch).
measuring values, controllers or timer for system cleaning with automatic hold function. Both contacts can be used as normally open
or normally closed.
Maximum load: 1 A/ 250 VAC
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.
or to interrupt control in automated installations (hold function or re-
mote-off)
USB Interface for logger download
Third signal output (can be used in parallel to the USB interface)
RS485 with Fieldbus protocol Modbus or Profibus DP
HART interface
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.
A-96.250.811 / 091017 9
AMI Silitrace
Product Description
Fluidic The sample enters at the sample inlet [N] and flows through the
flow meter [P], where the flow rate is measured, to the 6-way valve
[I]. A part of the sample overflows into the sample outlet [O].
The peristaltic pump [S] sucks the sample from the 6-way valve and
pumps it into the reaction chamber [D]. In the reaction chamber a
coil is wrapped around a heating device. It has 4 inlets to allow dosing of the necessary reagents.
In the reaction chamber the sample is preheated to 45°C, eliminating temperature deviations of the sample. In a first step Ammoniummolybdate [J] and sulfuric acid [K] are added, to form the
yellowish molybdosilic acid and molybdophosphoric acid.
Afterwards the oxalic acid [L] is added to mask the molybdophosphoric complex. At last the reducing agent ammonium ferrous (II)
sulfate [M] is added. The color of the sample turns to blue. As silica
is only present in trace amounts, the blue color can not be seen.
Afterwards the colored sample flows into the thermostatic cuvette
[E] until it is filled completely. Now the intensity of the color is measured at 815 nm. The color development is proportional to the silica
concentration in the sample.reaction chamber.
As the level of the sample in the cuvette increases, the sample
overflows into the siphon tube [G] and eventually the cuvette is
drained spontaneously through the siphon tube. The sample is led
via the aeration and drain tube [T] into the sample outlet [O].
Dosing, mixing and filling of the photometer are determined by the
rotating speed of the peristaltic pump [S]. This speed is adjusted
automatically and guarantees the correct timing of the measurement.
The solenoid valve [R] is used for the zero measurement. It switches off the supply of reagent 1, which is responsible for coloring the
sample. A zero can be started automatically or manually.
For a calibration or a verification the standard [B] is used. Both, calibration and verification can be started automatically or manually.
When a calibration or a verification is started, the 6-way valve is rotated to position 5 and standard is pumped through the photometer.
NOTICE: The fluidic scheme shows the single-stream variant of
the AMI Silitrace. The dual-stream variant is fitted with a
different flow cell block and a channel selector valve (see
Silitrace Dual-Stream, p. 34).
AMI
10 A-96.250.811 / 091017
AMI Silitrace
1
7
6
543
2
12
1
12
05
13
05
1A
1B
1B
2
2
3
4
11A2
2 3 4
3 4
3
4
04
04
11
11
01
02
04
11
12
4
3
03
04
02
01
03
03
B
A
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Product Description
A-96.250.811 / 091017 11
A
Grab sample bottle
B
Standard bottle
C
Photometer module
D
Reaction chamber
E
Cuvette
F
Cuvette de-aeration
G
Sample outlet (siphon tube)
H
Inlet from reaction chamber
I
6-way valve
J
Reagent 1
K
Reagent 2
L
Reagent 3
M
Reagent 4
N
Sample inlet
O
Sample outlet
P
Flow meter
Q
Flow regulating valve
R
Zero calibration valve
S
Peristaltic pump
T
Aeration and drain tube
AMI Silitrace
Product Description
2.2. Instrument Specification
Power Supply Voltage:
Power consumption:
Transmitter
specifications
Sample
requirements
On-site The analyzer site must permit connections to:
requirements Sample inlet:
Silica
measurement
Electronics housing
Ambient temperature:
Limit range of operation:
Storage and transport:
Humidity:
Display:
Flow rate:
Temperature:
Inlet pressure:
Outlet pressure:
Sample outlet:
Ambient temperature
Measuring range
Reproducibility:
Cycle time:
100–240 VAC (± 10%)
50/60 Hz (± 5%)
DC version not available
max. 50 VA
Aluminium with a protection degree of
IP 66 / NEMA 4X
-10 to +50 °C
-25 to +65 °C
-30 to +85 °C
10–90% rel., non condensing
backlit LCD, 75 x 45 mm
min. 3 l/ h
5 to 50 °C
0.15 to 2 bar
pressure free
Serto PVDF 6 mm (1/8”),
for tubing 4x6 mm
Tube 15 x 20 mm
(1/2”) hose nozzle which must end in a
pressure free waste of sufficient capacity
5 to 50 °C
0.5 to 1’000 ppb
± 0.5 ppb or ± 5%, whichever is greater
3 min
12 A-96.250.811 / 091017
AMI Silitrace
2L
2L
2L
2L
Exit Enter
Ozone Monitor
AMI SILITRACE
Trace SiO
Process Analyzer
2
824 mm / 32
7
/
16
”
850 mm / 33½”
13 mm / ½”
400 mm / 15¾”
374 mm / 14¾”
13 mm / ½”
4 x dia. 10 mm /
/
”
Product Description
Dimensions Panel:
Dimensions:
Screws:
Weight:
stainless steel
400x850x 150 mm
8 mm
16.0 kg
A-96.250.811 / 091017 13
AMI Silitrace
A
B
C
D
E
F
I
H
G
K
L
J
N
M
O
P
Q
Product Description
2.3. Instrument Overview
A
Panel
B
Standard bottle
C
Grab sample bottle
D
Solenoid valve for zero
calibration
E
Photometer module
F
14 A-96.250.811 / 091017
6-way valve
G
Flow regulating valve
H
Flow cell
I
Flow meter
J
Sample inlet
K
Sample outlet
L
Reagent 4
M
Reagent 3
N
Reagent 2
O
Reagent 1
P
Peristaltic pump
Q
Transmitter
AMI Silitrace
Installation
3. Installation
3.1. Installation Checklist
Check Instrument’s specification must conform to the National Electri-
cal Code, all state and local codes, and all plant codes and standards for electrical equipment.
On site
requirements
Installation
Electrical
Wiring
Start-up
100–240 VAC (± 10%), 50/60 Hz (± 5%) power outlet with
ground connection and 50 VA.
Sample line with sufficient sample flow and pressure (see
Instrument Specification, p. 12).
Mounting of Instrument Panel, p. 16.
Connect Sample and Waste, p. 17.
NOTICE: Do not switch on the Instrument until all electrical
connections are made.
Connect all external devices like limit switches, current loops
and pumps.
Electrical Connections, p. 19.
Connect power cord, see Power Supply, p. 22.
Proceed according to Start-up Procedure, p. 29.
.
A-96.250.811 / 091017 15
AMI Silitrace
Installation
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. 13.
16 A-96.250.811 / 091017
AMI Silitrace
2L
2L
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 3
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 4
2L
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 1
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 2
2L
A
B
D
E
F
C
Installation
3.3. Connect Sample and Waste
3.3.1 AMI Silitrace
A
B
C
Sample inlet
Hose nozzle
Knurled nut
D
Compression ferrule
E
Holder
F
1/2” tube
Sample inlet
Use a plastic tube (FEP, PA, or PE 4 x6 mm) to connect the sample.
1 Slide the knurled nut [C] and the compression ferrule [D] over
the plastic tube.
2 Push the plastic tube into the screw connection at the sample
inlet.
3 Tighten the knurled nut well.
Waste Push the 1/2” tube [F] over the hose nozzle [B] and place it into a
pressure free drain of sufficient capacity.
A-96.250.811 / 091017 17
AMI Silitrace
2L
2L
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 3
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 4
2L
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 1
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 2
2L
A
1
D
E
G
C
F
B
A
2
Installation
3.3.2 AMI Silitrace Dual-Stream
A
A
B
C
Sample inlet channel 1
1
Sample inlet channel 2
2
Hose nozzle
Knurled nut
D
Compression ferrule
E
Holder
F
1/2” tube
G
Channel selector valve
Sample inlet
Use two plastic tubes (FEP, PA, or PE 4 x6 mm) to connect the sample streams.
1 Slide the knurled nut [C] and the compression ferrule [D] over
the plastic tube.
2 Push the plastic tube into the screw connection at the sample
inlet.
3 Tighten the knurled nut well.
Waste Push the 1/2” tube [F] over the hose nozzle [B] and place it into a
pressure free drain of sufficient capacity.
18 A-96.250.811 / 091017
AMI Silitrace
Installation
3.4. Electrical Connections
Cable
thicknesses
In order to comply with IP66, use the following cable thicknesses
WARNING
Risk of electrical shock.
Do not perform any work on electrical components if the transmitter is switched on. Failure to follow safety instructions could
result in serious injury or death.
Always turn off AC power before manipulating electric parts.
Grounding requirements: Only operate the instrument from a
power outlet which has a ground connection.
Make sure the power specification of the instrument corre-
sponds to the power on site.
ABC
A
PG 11 cable gland: cable Ø
B
PG 7 cable gland: cable Ø
C
PG 9 cable gland: cable Ø
outer
3–6.5 mm
outer
4–8 mm
outer
5–10 mm
NOTICE: Protect unused cable glands
Wire For Power and Relays: Use max. 1.5 mm
stranded wire with end sleeves.
For Signal Outputs and Input: Use 0.25 mm
2
/ AWG 14
2
/ AWG 23
stranded wire with end sleeves.
A-96.250.811 / 091017 19
AMI Silitrace
Installation
WARNING
External Voltage.
External supplied devices connected to relay 1 or 2 or to the
alarm relay can cause electrical shocks
Make sure that the devices connected to the following con-
tacts are disconnected from the power before resuming installation.
–relay 1
–relay 2
– alarm relay
WARNING
To prevent from electrical shock, do not connect the instrument
to the power unless the ground wire (PE) is connected.
Do not connect unless specifically instructed to do so.
WARNING
The mains of the AMI Transmitter must be secured by a main
switch and appropriate fuse or circuit breaker.
20 A-96.250.811 / 091017
AMI Silitrace
Installation
3.4.1 Connection Diagram
CAUTION
Use only the terminals shown in this diagram, and only for the
mentioned purpose. Use of any other terminals will cause short
circuits with possible corresponding consequences to material
and personnel.
A-96.250.811 / 091017 21
AMI Silitrace
A
B
C
D
Installation
3.4.2 Power Supply
WARNING
Risk of electrical shock
Do not perform any work on electrical components if the transmitter is switched on. Failure to follow safety instructions could
result in serious injury or death.
Always turn off AC power before manipulating electric parts.
Installation and maintenance of electrical parts must be per-
formed by professionals.
A
Power supply connector
B
Neutral conductor, Terminal 2
C
Phase conductor, Terminal 1
D
Protective earth PE
NOTICE: The protective earth wire (Ground) has to be
connected to the grounding terminal.
Installation
requirements
The installation must meet the following requirements.
Fuse 1.6 AT
Mains cable to comply with standards IEC 60227 or IEC
60245; flammable rating FV1
Mains equipped with an external switch or circuit-breaker
– near the instrument
– easily accessible to the operator
– marked as interrupter for AMI Silitrace
22 A-96.250.811 / 091017
AMI Silitrace
10
12
11
0V
1)
10
12
11
0V
Installation
3.5. Relay Contacts
3.5.1 Input
Terminals 16/42
For programming see “Program List and Explanation” 5.3.4, p. 102.
3.5.2 Alarm Relay
Alarm output for system errors.
Error codes see Error List, p. 58.
Terminals Description Relay connection
1)
NC
Normally
Closed
10/11 Active (opened) during normal
NOTICE: Use only potential-free (dry) contacts.
The total resistance (sum of cable resistance and resistance of
the relay contact) must be less than 50 Ω.
NOTICE: Max. load 1 A/250 VAC
NOTICE: With certain alarms and certain settings of the AMI
transmitter the alarm relay does not switch. The error, however,
is shown on the display.
operation.
Inactive (closed) on error and
loss of power.
NO
Normally
Open
12/11 Active (closed) during normal
operation.
Inactive (opened) on error and
loss of power.
1) usual use
A-96.250.811 / 091017 23
AMI Silitrace
6
0V
7
6
0V
7
A
B
Installation
3.5.3 Relay 1 and 2
Relay 1 and 2 can be configured as normally open or as normally
closed. Standard for both relays is normally open. To configure a
Relay as normally closed, set the jumper in the upper position.
NOTICE: Max. load 1 A/250 VAC
NOTICE: Some error codes and the instrument status may
influence the status of the relays described below.
Relay
config. Terminals
Normally
Open
Normally
Closed
6/ 7: Relay 1
8/ 9: Relay 2
6/ 7: Relay 1
8/ 9: Relay 2
Jumper
pos. Description Relay configuration
Inactive (opened) during
normal operation and loss
of power.
Active (closed) when a programmed function is
executed.
Inactive (closed) during
normal operation and loss
of power.
Active (opened) when a
programmed function is
executed.
ABJumper set as normally open (standard setting)
Jumper set as normally closed
For more information see Program List and Explanations, p. 79.
24 A-96.250.811 / 091017
AMI Silitrace
A
BC
DE
AB
C
Installation
CAUTION
Risk of damage of the relays in the AMI Transmitter due to
heavy inductive load.
Heavy inductive or directly controlled loads (solenoid valves,
dosing pumps) may destroy the relay contacts.
To switch inductive loads > 0.1 A use an AMI relay box avail-
able as an option or suitable external power relays.
Inductive load Small inductive loads (max 0.1A) as for example the coil of a power
Resistive load Resistive loads (max. 1A) and control signals for PLC, impulse
Actuators Actuators, like motor valves, are using both relays: One relay con-
relay can be switched directly. To avoid noise voltage in the
AMI Transmitter it is mandatory to connect a snubber circuit in parallel to the load.
A snubber circuit is not necessary if an AMI relaybox is used.
A
AC or DC power supply
B
AMI Transmitter
C
External power relay
D
Snubber
E
Power relay coil
pumps and so on can be connected without further measures
A
AMI Transmitter
B
PLC or controlled pulse pump
C
Logic
tact is used for opening, the other for closing the valve, i.e. with the
2 relay contacts available, only one motor valve can be controlled.
Motors with loads bigger than 0.1A must be controlled via external
power relays or an AMI relay box.
A
A
BC
AC or DC power supply
B
AMI Transmitter
C
Actuator
A-96.250.811 / 091017 25
M
AMI Silitrace
A
B
C
Installation
3.6. Signal Outputs
3.6.1 Signal Output 1 and 2 (current outputs)
Signal output 1: Terminals 14 (+) and 13 (-)
Signal output 2: Terminals 15 (+) and 13 (-)
For programming see Program Overview, p. 73, Menu Installation.
3.7. Interface Options
NOTICE: Max. burden 510 Ω.
If signals are sent to two different receivers, use signal isolator
(loop isolator).
A
AMI Transmitter
B
Slot for interfaces
C
Screw terminals
The slot for interfaces can be used to expand the functionality of
the AMI instrument with either:
Third signal output
a Profibus or Modbus connection
a HART connection
an USB Interface
26 A-96.250.811 / 091017
AMI Silitrace
Installation
3.7.1 Signal Output 3
Terminals 38 (+) and 37 (-).
Requires the additional board for the third signal output 0/4–20 mA.
The third signal output can be operated as a current source or as a
current sink (switchable via switch [A]). For detailed information see
the corresponding installation instruction.
Third signal output 0/4 - 20 mA PCB
A Operating mode selector switch
3.7.2 Profibus, Modbus Interface
Terminal 37 PB, Terminal 38 PA
To connect several instruments by means of a network or to config-
ure a PROFIBUS DP connection, consult the PROFIBUS manual.
Use appropriate network cable.
NOTICE: Max. burden 510 Ω.
A
NOTICE: The switch must be ON, if only one instrument is
installed, or on the last instrument in the bus.
OFF
ON
A
Profibus, Modbus Interface PCB (RS 485)
A On - OFF switch
A-96.250.811 / 091017 27
AMI Silitrace
A
B
Installation
3.7.3 HART Interface
Terminals 38 (+) and 37 (-).
The HART interface PCB allows for communication via the HART
protocol. For detailed information, consult the HART manual.
HART Interface PCB
3.7.4 USB Interface
The USB Interface is used to store Logger data and for Firmware
upload. For detailed information see the corresponding installation
instruction.
The optional third signal output 0/4 – 20 mA PCB [B] can be
plugged onto the USB interface and used in parallel.
USB Interface
A USB interface PCB
B Third signal output 0/4 - 20 mA PCB
28 A-96.250.811 / 091017
AMI Silitrace
Instrument Setup
4. Instrument Setup
4.1. Start-up Procedure
The following table lists all necessary steps for a successful commissioning of the AMI Silitrace. Additionally, the expected result
and corrective actions are specified for each step.
NOTICE: It is important to verify the result of each step before
proceeding with the next step. We recommend to work exactly
in the order given in the table.
Prerequisites Analyzer has been mounted, connected to the sample and waste
line and connected to power (see Installation, p. 15)
Optional: AMI Sample Sequencer has been installed (see
manual of the AMI Sample Sequencer)
Step Expected result Corrective action
Prepare Reagents 31,
Prepare Standard 31
Switch on Power 33
Adjust Sample Flow 33
(approx. 5–10 l/h)
Activate the Peristaltic
Pump 35,
Fill System 35
Programming 36 n/a n/a
n/a n/a
The AMI transmitter
starts up
The main screen is
displayed
The flow is indicated on
the main screen
The tubes are filled
The liquid moves with a
speed of approximately
1 cm every 5 s
Check electrical wiring
Check fuses
Check sample line
Check wiring of flow
Tighten connections to
Check if occlusion
Check if occlusion
sensor
the pump tubes
frames are snapped
properly
frames and pump tubes
are aligned in a 90°
angle to the rotor.
A-96.250.811 / 091017 29
AMI Silitrace
Instrument Setup
Step Expected result Corrective action
Resolve all pending errors
Visual check of the reaction chamber 37
Check photometer raw
value 38
Check P2P period 38
Perform a zero calibration 53
Perform a standard calibration 51
No errors are displayed
apart from E008
“SilTrace temp low”
No air bubbles in the
reaction chamber
The photometer’s raw
value follows a fill/empty
pattern
While the photometer is
being filled, an unstable
raw value is normal
Once the cuvette is
completely filled, the raw
value must remain
stable
P2P period is different
from “0 Sec”
The raw value is close to
2.2 V
The calibration factor is
between 0.5 and 2.0
As soon as the reaction
chamber has reached its
operating temperature,
E008 automatically
disappears
If there are other
pending errors, resolve
them according to the
Error List 58
Tighten all tube
connections
Cuvette blocked
Cuvette not snapped
completely
Wait until the system is
free from air bubbles.
Wait until the cuvette
has been emptied twice
Clean cuvette / flush
system with ammonia
solution 57
Perform a cuvette factor
determination 84
Check if the zero
calibration valve is
switching
Check programmed
concentration of
standard
Repeat calibration with
fresh standard solution
30 A-96.250.811 / 091017
AMI Silitrace
Instrument Setup
4.2 Prepare Reagents
See Refill or Replace Reagents, p. 48
1 Insert suction lances into containers.
4.3. Prepare Standard
Following standard solutions are available:
Standard
100 ppb
Stock solution
100 ppm
Ready for use.
From the stock solution you can produce your own standard. Standards from 10 to 1000 ppb can be used for the AMI Silitrace.
SWAN does not recommend to mix your own standard!
By default the instrument is programmed for a standard of 100 ppb.
Make the following dilution to obtain a standard of 100 ppb:
1 Put a 250 ml bottle on to a balance, set balance to 0 g.
2 Fill in 250 μg stock solution 100 ppm.
3 Fill up to 250 g with demineralized water.
4 Mark the bottle with the correct concentration.
5 Program the instrument accordingly, see 5.1.1.1.1, p. 87.
Make sure that the numbers on suction lances correspond to
the numbers on the containers.
100 ppb standard in a 250 ml bottle
100 ppm stock solution in a 100 ml bottle
NOTICE: If you prepare a standard different from 100 ppb,
program the standard concentration in menu <Installation>/
<Sensors>/<Meas. Parameters>/<Cal./Verif.>/<Standard>.
A-96.250.811 / 091017 31
AMI Silitrace
Instrument Setup
Standard
consumption
During a calibration or verification approximately 15 ml standard is
consumed. Therefore a standard bottle lasts for 3 months at default
interval settings.
The default interval settings are:
Start time: 06:00:00
Monday: Verification
All other days: Off
Screw the standard bottle to the right bottle holder.
Grab
Sample
Standard
32 A-96.250.811 / 091017
AMI Silitrace
A
B
Instrument Setup
4.4. Switch on Power
Open the sample tap and switch on the instrument.
After switching on, the instrument starts to warm up the reaction
chamber. During the warm-up phase, the display shows <INIT>
and alarm E008 is active.
After the reaction chamber has reached its operating temperature,
the instrument changes to <RUN> and is ready for operation.
4.5. Adjust Sample Flow
INIT
R1
R2
5.0 l/h
0.0
ppb
0.0 °C
NOTICE: The duration of the warm-up phase depends on the
ambient temperature at the operating site.
AMI Silitrace
ABFlow regulating valve
Overflow
1 Open the flow regulating valve (A).
2 Adjust the sample flow to 5– 10 l/h
A-96.250.811 / 091017 33
AMI Silitrace
B
C
A
1
A
2
Instrument Setup
AMI Silitrace
Dual-Stream
A
Flow regulating valve for
1
channel 1
Flow regulating valve for
A
2
channel 2
B
Overflow
C
Channel selector valve
1 Open the flow regulating valves (A
and A2).
1
2 Adjust the sample flow to 5–10 l/h.
34 A-96.250.811 / 091017
AMI Silitrace
A
B
D
C
Instrument Setup
4.6. Activate the Peristaltic pump
The occlusion frames of the peristaltic pump are opened during
transport and storage. This prevents the pump tubes from sticking
together at the pressure points.
1 Turn the occlusion frames [B] clockwise until they snap in to ac-
tivate the peristaltic pump.
NOTICE: Make sure the occlusion frames and pump tubes are
aligned in a 90° angle to the rotor.
A
Turn to lock
B
Occlusion frame
C
Rotor
D
Pump tube
Fill System Select <Maintenance>/<Service>/<Fill system>. This activates the
reagent pump and fills all tubes from the container to the cuvette
outlet.
A-96.250.811 / 091017 35
AMI Silitrace
5.1.2.2
Channel Selection internal
Multi-Channel
Switching time 20 Min
Channels 1
5.1.2.2
Channel Selection internal
Multi-Channel
Switching time 20 Min
Channels 6
No
Save?
Yes
5.1.6
Channel Selection internal
Multi-Channel
Switching time 20 Min
Channels 6
fieldbus
Channel Selection
internal
external
Instrument Setup
4.7. Programming
Program all parameters for external devices (interface, recorders,
etc.). Program all parameters for instrument operation (limits,
alarms). See Program List and Explanations, p. 79.
4.7.1 AMI Sample Sequencer (Option)
AMI Sample
Sequencer
AMI Analyzer Set the firmware of the AMI Analyzer according to your require-
Select mode “AMI” in the firmware of the AMI Sample Sequencer.
ments.
1 Navigate to menu <Installation>/
<Sensors>/<Multi-Channel>.
2 Navigate to <Channels> with
the[ ] or[ ] key.
3 Press [Enter].
4 Set <Channels> according to the
number of available channels
(1–6) with the [ ] key.
5 Confirm with [Enter].
6 Press [Exit], choose <Save> “Yes”
Confirm with [Enter].
With the AMI Sample Sequencer connected, the AMI Silitrace can
be operated in the following 3 different modes.
internal
fieldbus
external
1 Navigate to menu <Installation>/
<Sensors>/<Multi-Channel>.
2 Navigate to <Channel Selection>
with the [ ] or[ ] key.
3 Press [Enter].
Internal, see chap. 9, Mode Internal, p. 89
Fieldbus, see chap. 9, Mode Fieldbus, p. 89
External, see chap. 9, Mode External, p. 89
36 A-96.250.811 / 091017
AMI Silitrace
A
B
C
A
D
Instrument Setup
4.8. Final Tests
Pending errors Resolve all pending errors, see Troubleshooting, p. 58.
Visual check
of reaction
chamber
Carefully pull out the cuvette [C] from the photometer module and
open the cover [B]. Check that there are no air bubbles in the reaction chamber [D].
If this check fails:
check if all tube connections are tight
A
Cover fixing screws
B
Photometer module cover
C
Cuvette
D Reaction chamber
Close the cover again and snap in the cuvette.
A-96.250.811 / 091017 37
AMI Silitrace
0
0.5
1
FOME raw [V]
1.5
2
2.5
Instrument Setup
Photometer
raw value
Select <Diagnostics>/<Sensors>/ <SilTrace>/<Photometer>.
Check if the photometer raw value follows a fill/empty pattern. See
example below:
While the cuvette is being filled, an unstable raw value is normal.
Once the cuvette is completely filled, the raw value must remain
stable.
If this check fails:
check if the cuvette is blocked
check if the cuvette is snapped in properly
P2P Cycle Select <Diagnostics>/ <Sensors>/<Cycle diagnostics>.
Check whether the analyzer has already performed a valid measurement cycle. This can be recognized by a P2P period not equal
to "0 sec".
If this check fails:
wait until all air bubbles have left the system
wait until the cuvette has been emptied twice
Zero
Calibration
Manually start a zero calibration (Zero, p. 53), then review the raw
value in <Diagnostics>/ <Sensors> /<History>/ <Zero History>. The
raw value must be close to 2.2 V.
If this check fails:
check if the zero calibration valve is switching (reagent 1 is led
into the waste)
clean the photometer using an ammonia solution (see Clean the
Photometer, p. 57)
perform a cuvette factor determination (see 3.4.3, p. 84)
38 A-96.250.811 / 091017
AMI Silitrace
Instrument Setup
Standard
Calibration
Manually start a standard calibration (Calibration, p. 51), then review the calibration factor in <Diagnostics> / <Sensors>/<Cal. History>. The calibration factor must be between 0.5 and 2.0.
If this check fails:
Check if the programmed concentration matches the reference
value of the standard solution
Repeat the calibration with a new standard solution
A-96.250.811 / 091017 39
AMI Silitrace
25.4°C
RUN
9 l/h
14:10:45
R1
1.4 ppb
R2
1
Installation
Operation
Diagnostics
Messages
Maintenance
Main Menu
Enter
Exit
Operation
5. Operation
5.1. Keys
A to exit a menu or command (rejecting any changes)
B to move DOWN in a menu list and to decrease digits
C to move UP in a menu list and to increase digits
D to open a selected sub-menu
BCDA
Exit Enter
to move back to the previous menu level
to switch between display 1 and 2
to accept an entry
Program
Access, Exit
40 A-96.250.811 / 091017
AMI Silitrace
RUN
15:20:18
R1
R2
45.1 °C
5 l/h
ppb
4.7
A
B
D
F
G
H
I
EC
15:10:52
Operation
5.2. Display
A
B
C
D
E
F
G
H
I
INIT Warming up the reaction chamber
RUN normal operation
HOLD input closed or cal delay: Instrument on hold (shows
OFF input closed: control/limit is interrupted (shows status
GRAB A grab sample measurement is in progress.
ERROR Error
Reagent low, indicates remaining reagents in % (17% = 340 ml)
Keys locked, transmitter control via Profibus
Time
Process value with time stamp
Reaction chamber temperature
Sample flow
Relay status
status of signal outputs).
of signal outputs).
Fatal Error
Relay status, symbols
upper/lower limit not yet reached
upper/lower limit reached
control upw./downw. no action
control upw./downw. active, dark bar indicates control intensity
motor valve closed
A-96.250.811 / 091017 41
motor valve: open, dark bar indicates approx. position
timer
timer: timing active (hand rotating)
channel selection (Dual-Stream variant) or controlled via Profibus
AMI Silitrace
RUN
15:21:18
15:10:52
15:20:52
R1
Si1
Si2
R2
45.1 °C
5 l/h
ppb
~
4.5
ppb
4.7
F
Operation
Display when
operating with
two or more
sample streams
F Process values with time stamp
Si1 –Si6: Sample streams 1 to 6, according to the number of
available channels.
Up to 3 process values can be displayed on one screen. Toggle
screens with the [ ] key.
Active measurement
Position of valve
~ No sample flow
n Measurement not valid
x Sample stream inactive (only visible if a Sample Sequencer is
connected to the AMI Silitrace and measuring mode
<internal> is selected).
42 A-96.250.811 / 091017
AMI Silitrace
1
Messages
Operation
Maintenance
Diagnostics
Main Menu
Installation
1.1
Pending Errors
Messages
Maintenance List
Message List
2.1
Interface
I/O State
Sample
Identification
Sensors
Diagnostics
3.1
Calibration
Verification
Maintenance
Service
Zero
Simulation
4.1
Logger
Relay Contacts
Sensors
Operation
Grab Sample
5.1
Interface
Relay Contacts
Sensors
Signal Outputs
Installation
Operation
5.3. Software Structure
Menu Messages 1
Reveals pending errors as well as an event history
(time and state of events that have occurred at an
earlier point of time).
It contains user relevant data.
Menu Diagnostics 2
Provides user relevant instrument and sample data.
Menu Maintenance 3
For instrument calibration, relay and signal output
simulation, and to set the instrument time.
It is used by the service personnel.
Menu Operation 4
User relevant parameters that might need to be
modified during daily routine. Normally password
protected and used by the process-operator.
Subset of menu 5 - Installation, but process-related.
Menu Installation 5
For initial instrument set up by SWAN authorized
person, to set all instrument parameters. Can be
protected by means of password.
A-96.250.811 / 091017 43
AMI Silitrace
5.1.2
Sensors
Sensor type FOME
Temperature NT5K
Standards
Disinf. Free chlorine
4.4.1
Logger
Log interval 30 min
Clear logger no
4.1.3
Logger
Clear logger no
Log interval 30min
1 Hour
Interval.
5 min
30 min
10 min
4.1.3
Logger
Log interval 10 min
Clear logger no
4.1.3
Logger
Log interval
Clear logger no
No
Save ?
Yes
5.3.1.1.1
Alarm High 1.00 ppm
Alarm Si 1
Alarm Low 0.0 ppb
Hysteresis 5.0 ppb
Delay 5 Sec
5.3.1.1.1
Alarm Si 1
Alarm Low 0.0 ppb
Hysteresis 5.0 ppb
Delay 5 Sec
Alarm High 0.70 ppm
Operation
5.4. Changing Parameters and values
Changing
parameters
The following example shows how to change the logger interval:
1 Select the parameter you want to
change.
2 Press [Enter]
3 Press [ ] or [ ] key to
highlight the required parameter.
4 Press [Enter] to confirm the selec-
tion or [Exit] to keep the previous
parameter).
The selected parameter is
highlighted but not saved yet.
5 Press [Exit].
Yes is highlighted.
6 Press [Enter] to save the new pa-
rameter.
The system reboots, the new
parameter is set.
Changing
values
1 Select the value you want to
change.
2 Press [Enter].
3 Set required value with [ ] or
[] key.
4 Press [Enter] to confirm the new
value.
5 Press [Exit].
Yes is highlighted.
44 A-96.250.811 / 091017
6 Press [Enter] to save the new val-
ue.
AMI Silitrace
4.1.5
Grab Sample bottle
Grab Sample
to marked holder
Connect the
<Enter> to continue
4.1.5
Grab Sample
Sample ID xxxx
<Enter> to continue
Operation
5.5. Grab Sample Measurement
Select Menu 4.1 (<Operation>/<Grab Sample>) and follow the instructions on the display.
Relay status during grab sample measurement:
NOTICE: The grab sample function is not suitable for quality
assurance of the instrument.
Signal outputs are on hold
All limits are switched off
1 Close the flow regulating valve.
2 Fill the sample into the grab sam-
ple bottle and screw it to the left
bottle holder.
3 Press [Enter].
A-96.250.811 / 091017 45
Grab
Sample
Standard
4 Enter an ID for the sample.
This ID will be saved together
with the measuring result of the
grab sample.
5 Press [Enter].
AMI Silitrace
4.1.5
Grab Sample
State xxxx
Progress
<Enter> to stop
4.1.5
Grab Sample
State xxxx
Cycle 1
Timer 10 sec
<Enter> to stop
4.1.5
Grab Sample
State xxxx
Cycle 1
Progress
<Enter> to stop
4.1.5
Grab Sample
Operation completed
Sample ID xxxx
Grab Sample xx.x ppb
<Enter> to finish
Operation
6 Press [Enter] to finish the grab
sample measurement.
The measuring value of the grab
sample is saved.
46 A-96.250.811 / 091017
AMI Silitrace
Maintenance
6. Maintenance
6.1. Maintenance Table
Monthly or less
frequent
Every 2– 3 months Check standard solution and exchange if
Semiannual Exchange pump tubes. Perform a calibra-
By occurrence E020, FOME dirty. Clean the photometer
1)
1)
The interval depends on the <Reagents saving> setting, see 4.2.3, p. 85.
NOTICE: A verification is performed automatically each week,
programmed by default on Monday at 06:00 AM. Make sure that
a standard bottle containing sufficient standard solution is
connected.
Replace reagents.
necessary.
tion after exchanging the pump tubes.
with 5% NH3 solution, see Clean the Pho-
tometer, p. 57.
6.2. Stop of Operation for Maintenance
The prepare maintenance function will flush the complete analyzer
with water. It is recommended to start this function before starting
any maintenance.
1 Select <prepare maintenance>.
2 Follow the instructions on the display.
(Put suction lances into a bucket with high purity water).
3 Wait until the peristaltic pump has stopped.
4 Stop sample flow.
5 Put suction lances into an empty bucket.
6 Shut off power of the instrument.
A-96.250.811 / 091017 47
AMI Silitrace
2L
2L
2L
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 1
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 2
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 3
OXYCON ON-LINE SILCA
AMI SILICA REAGENT 4
2L
A
B
C
D
E
F
I
G
H
Maintenance
Canister setup
6.3. Refill or Replace Reagents
The liquid level in container 4 is monitored. The following messages are displayed:
Container almost
empty
Container empty Error E022 - Reagent empty
WARNING
Health hazard
For safe handling of the reagents you must read and under-
stand the Material Safety Data Sheets (MSDS).
Only persons trained in handling dangerous chemicals are al-
lowed to prepare the reagents.
Maintenance E065 - Reagents low and the
remaining reagent volume in % (starting at
17 % = 340 ml).
A
Suction lance without
level detector
(containers 1- 3)
B
Suction lance with
level detector
(container 4)
C
Level detector
D
2 L mark
E
Reagent container 1
F
Reagent container 2
G
Reagent container 3
H
Reagent container 4
I
Holder
48 A-96.250.811 / 091017
AMI Silitrace
Maintenance
Reagent
consumption
Contents of the
reagent set
Each 2 liter reagent canister will last for approximately 1 month of
operation if reagent saving is switched off or up to three months if
reagent saving is switched on (see 4.2.3, p. 85).
NOTICE: Excessive use of the flush/fill function or frequent flow
interruptions will shorten this period.
Reagent 1: Bags 1a and 1b for Canister 1
ammonium molybdate and sodium hydroxyde
Reagent 2: Bottle 2 for Canister 2
sulfuric acid 25%
Reagent 3: Bag 3 for Canister 3
oxalic acid dihydrate
Reagent 4: Bag 4a and bottle 4b for Canister 4
ammonium ferrous sulfate hexahydrate
sulfuric acid 25% containing detergent
WARNING
Sulfuric Acid is corrosive and causes severe burns.
Read the Material Safety Data Sheets (MSDS) first.
Only persons trained in handling dangerous chemicals are al-
lowed to prepare the reagents
In case of contact with eyes, rinse immediately with plenty of water eyelid wide open, summon medical advice. In case of accident or if you feel unwell, summon medical advice immediately.
NOTICE: Never prepare this reagent from concentrated sulfuric
acid packed in glass bottles!
Reagent 3:
H302: Harmful if swallowed H312: Harmful
Warning
Warning
Danger
A-96.250.811 / 091017 49
in contact with skin
Reagent 4a:
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
Reagent 1b, Reagent 2, Reagent 4b:
H314: Causes severe skin burns and eye
damage
AMI Silitrace
Maintenance
Preparation NOTICE: Please consider the following points when preparing
new reagents:
• Reagent 3, Oxalic Acid dissolves very slowly, we therefore
recommend to prepare Reagent 3 first.
• Reagent 1, add Sodium hydroxide (Reagent 1b) first.
• Before refilling rinse all containers well with demineralized
water.
Reagent 3 1 Fill canister 3 with approx. 1.5 liters of ultrapure water.
2 Add reagent 3 to canister 3.
3 Close the canister with a screw cover and shake well.
4 Fill up the canister to the 2 L mark, close it and shake again.
Reagent 1 1 Fill canister 1 with approx. 1.5 liters of ultrapure water.
2 First add the content of bag 1b (sodium hydroxyde).
3 Close the canister with a screw cover and shake well until the
sodium hydroxyde is dissolved.
4 Add the content of bag 1a.
5 Fill up the canister to the 2 L mark, close it and shake again.
Reagent 2 1 Fill canister 2 with approx. 1.5 liters of ultrapure water.
2 Add the bottle 2 (sulfuric acid 25%).
3 Close the canister with a screw cover and shake well.
4 Fill up the canister to the 2 L mark, close it and shake again.
Reagent 4 1 Fill up the canister to the 2 L mark.
2 First add bag 4a.
3 Close the canister with a screw cover and shake well.
4 Add bottle 4b, close the canister and mix again.
Some foam forms on the surface.
All canisters
Always replace the reagent filters (included with each reagent set)
when preparing new reagents.
Insert suction lances into the containers. Make sure that the num-
bers on the suction lances correspond to the numbers on the containers.
50 A-96.250.811 / 091017
AMI Silitrace
4.1.5
standard bottle
Calibration
to marked holder
Connect the
<Enter> to continue
3.1.1
Calibration
State xxxx
Progress
<Enter> to stop
3.1.1
Calibration
State Synchronize
Cycle 1
Timer 10 sec
<Enter> to stop
3.1.1
Calibration
State Measure
Cycle 1
Progress
<Enter> to stop
3.1.1
Calibration
Operation completed
Factor xxxx
<Enter> to save
Maintenance
6.4. Calibration
Select Menu 3.1 <Maintenance>/<Calibration> and follow the instructions on the display.
Relay status during calibration:
Signal outputs are on hold
All limits are switched off
A-96.250.811 / 091017 51
Press [Enter] to save the value in the
calibration history or leave the menu
with [Exit].
AMI Silitrace
4.1.5
standard bottle
Verification
to marked holder
Connect the
<Enter> to continue
3.2.1
Verification
State xxxx
Progress
<Enter> to stop
3.2.1
Verification
State Synchronize
Cycle 1
Timer 10 sec
<Enter> to stop
3.2.1
Verification
State Measure
Cycle 1
Progress
<Enter> to stop
3.2.1
Verification
Operation completed
Current value xxx ppb
Reference value xxx ppb
<Enter> to save
Deviation xx.x%
Maintenance
6.5. Verification
Select Menu 3.2 <Maintenance>/<Verification> and follow the instructions on the display.
Relay status during verification:
Signal outputs are on hold
All limits are switched off
Press [Enter] to save the value in the
verification history or leave the menu
with [Exit].
52 A-96.250.811 / 091017
AMI Silitrace
3.2.1
Zero
State xxxx
Progress
<Enter> to stop
3.2.1
Zero
State xxxx
Cycle 1
Timer 10 sec
<Enter> to stop
3.2.1
Zero
State xxxx
Cycle 1
Progress
<Enter> to stop
3.2.1
Zero
Operation completed
Zero 1.00 V
<Enter> to save
Maintenance
6.6. Zero
Select Menu 3.2 <Maintenance>/<Zero> and follow the instructions
on the display.
Relay status during zero:
Signal outputs are on hold
All limits are switched off
A-96.250.811 / 091017 53
Press [Enter] to save the value in the
verification history or leave the menu
with [Exit].
AMI Silitrace
A
B
D
C
E
F
Maintenance
6.7. Replace the Pump Tubes
The pump tubes [D] of the peristaltic pump are exposed to a minimal wear. It is therefore recommended to exchange the pump
tubes semiannually.
NOTICE: it is highly recommended to replace all pump tubes at
once. Replacement of only one pump tube may lead to uneven
dosing.
CAUTION
Pollution of reagents possible.
If the occlusion frames are opened during operation, already
mixed reagents will flow back into the reagent canisters and pollute the reagents.
Never open the occlusion frames if the instrument is in opera-
tion.
Proceed according to Stop of Operation for Maintenance, p.
47 before opening the occlusion frames.
Overview
54 A-96.250.811 / 091017
A
Pump housing
B
Occlusion frame
closed
C
Rotor
D
Pump tube
E
Pump inlet
F
Pump outlet
AMI Silitrace
A
B
D
C
F
E
Ø = 2.8 mm
Ø = 0.64 mm
Ø = 0.64 mm
Ø = 0.64 mm
Ø = 0.64 mm
Maintenance
Dismount
pump tubes
The pump tubes can easily be dismounted and mounted.
Proceed as follows:
A
Pump housing
B
Occlusion frame open
C
Rotor
D
Pump tube
E
Pump inlet
F
Pump outlet
1 Switch off the instrument according to instructions in Stop of
Operation for Maintenance, p. 47
2 Open the occlusion frames [B] by turning them counter-clock-
wise.
3 Remove the occlusion frames [B] from the rotor [C] by pulling
the complete occlusion frame out of the holder.
4 Dismount all reagent and sample tubes from the occlusion
frame.
5 Remove all occlusion frames.
6 Install the new occlusion frames.
NOTICE:
The tube nearest to the housing (sample tube) has a
diameter of 2.8 mm. All other tubes have a diameter of 0.64 mm.
A-96.250.811 / 091017 55
AMI Silitrace
3.2.2
Fill System
Service
Prepare Maintenance
3.2.2.5
Fill System
Progress
<Enter> to stop
3.2.2.5
Fill System
Progress
Done
Maintenance
7 Install the sample tube and all reagent tubes (see Replace the
8 Push the occlusion frames onto the rotor.
9 Lock the occlusion frames.
10 Put suction lances into the corresponding reagent container.
11 Start fill system, see Fill System, p. 56.
6.8. Fill System
Fill the reagent tubing:
Pump Tubes, p. 54).
at first start-up
after refilling the reagent containers
after replacing the pump tubes
Navigate to menu <Maintenance /
Service/ Fill system>.
Press [Enter].
The peristaltic pump is activated for
1.5 minutes.
Press [Exit] 4 times to return to the operating display mode.
56 A-96.250.811 / 091017
AMI Silitrace
Maintenance
6.9. Clean the Photometer
To clean the photometer, flush it with 5% ammonia solution.
1 Fill a beaker with 5% ammonia solution.
2 Place all suction lances in the beaker.
3 Navigate to menu <Maintenance>/<Service> / <Fill system>.
4 Press [Enter].
6.10. Longer Stop of Operation
1 Proceed according to chapter Stop of Operation for Mainte-
2 Relax the occlusion frames of the Peristaltic pump.
nance, p. 47.
See Replace the Pump Tubes, p. 54.
A-96.250.811 / 091017 57
AMI Silitrace
25.4°C
HOLD
8 l/h
14:10:45
R1
0.65 ppb
R2
1
Installation
Operation
Diagnostics
Messages
Maintenance
Main Menu
1.1
Message List
Maintenance List
Pending Errors
Messages
1.1.5
Pending Errors
Error Code E010
Sample Flow low
<Enter> to Acknowledge
Troubleshooting
7. Troubleshooting
7.1. Error List
Error
Non-fatal Error. Indicates an alarm if a programmed value is exceeded. Such Errors are marked E0xx (bold and black).
Fatal Error (blinking symbol)
Control of dosing devices is interrupted.
The indicated measured values are possibly incorrect.
Fatal Errors are divided in the following two categories:
Errors which disappear if correct measuring conditions are re-
covered (i.e. Sample Flow low).
Such Errors are marked E0xx (bold and orange)
Errors which indicate a hardware failure of the instrument.
Such Errors are marked E0xx (bold and red)
Error or fatal Error
Error not yet acknowledged.
Check Pending Errors 1.1.5 * and
take corrective action.
Press [ENTER].
Navigate to menu Messages.
Press [ENTER].
Navigate to menu Pending Errors.
Press [ENTER].
Press [ENTER] to acknowledge the
Pending Errors. The Error is reset and
saved in the Message List.
58 A-96.250.811 / 091017
AMI Silitrace
Troubleshooting
Error Description Corrective action
E001 Si 1 Alarm high
E002 Si 1 Alarm low
E003 Si 2 Alarm high
E004 Si 2 Alarm low
E007 SilTrace Temp. high
E008 SilTrace Temp. low
E009 Sample Flow high
E010 Sample Flow low
E011 Absorbance too high
– Check process
– Check programmed value, see
5.3.1.x.1, p. 96
– Check process
– Check programmed value, see
5.3.1.x.22, p. 96
– Check process
– Check programmed value, see
5.3.1.x.1, p. 96
– Check process
– Check programmed value, see
5.3.1.x.22, p. 96
– Call service
– If the error occurs when starting up:
No action necessary. Only wait until the
photometer has warmed up (20
minutes at room temperature), then this
error disappears automatically.
– If the error occurs during operation:
Check whether there are any other
errors and resolve them first (some
errors cause the heater to be switched
off).
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.32, p. 97
– Check process
– Check tube connections for air
leakages
A-96.250.811 / 091017 59
AMI Silitrace
Troubleshooting
Error Description Corrective action
E012 Temp. Timeout
E013 Case Temp. high
E014 Case Temp. low
E015 Pump Speed high
E016 Pump Speed low
E017 Control Timeout
E018 Reagent Pump
E019 SilTrace
E020 Photometer dirty
– Check ambient temperature (min 5°C)
– Close the photometer lid
– Heater defective, call service.
– Check case/environment temperature
– Check programmed value, see
5.3.1.42, p. 97
– Check case/environment temperature
– Check programmed value, see 5.3.1.5,
p. 97
– Flow in reaction chamber too slow
– Check tubes for air leakages
– Replace pump tubing, see Replace the
Pump Tubes, p. 54
– Flow in reaction chamber too fast
– Check PeriClip pump tubing (tube
sizes)
– Check tube connections
– Check control device or programming
in Installation, Relay contact, Relay 1
and 2 see 5.3.2 and 5.3.3, p. 98
– Check cable connection
– Check PeriClip version (Diagnostic/
Identification/Periphery)
– Call service
– Check cable connection
– Check Siltrace version (Diagnostic/
Identification/Periphery)
– Call service
– Cuvette dirty
– Clean cuvette lenses with a tissue
– Replace cuvette, see Replace the
Cuvette, p. 67.
60 A-96.250.811 / 091017
AMI Silitrace
Troubleshooting
Error Description Corrective action
E021 Signal Timeout
E022 Reagent empty
E023 Sequencer
E024 Input active
E025 Rovalve (6-way valve)
E026 IC LM75
E028 Signal output open
E030 EEProm Frontend
E031 Cal. Recout
E032 Wrong Frontend
– Unsuccessful peak detection can be
caused by:
1) interrupted light path
2) no water/too much air in the
reaction chamber
– Check if reaction chamber is clogged,
replace it if necessary, see Replace the
reaction chamber, p. 63.
– Check position of the cuvette (make
sure that it is pushed into the slot as far
as it will go)
– Check tube connections
– Refill reagents, see Refill or Replace
Reagents, p. 48.
– Check Sample Sequencer connection.
– Make sure that the Sample Sequencer
is set to the mode “AMI” (menu
<Installation>/ <Sequence> / <Mode>).
– This error message also appears
during programming of the Sample
Sequencer, as soon as the
<Installation> menu is entered.
– No action necessary.
– This message is displayed if “Fault =
Yes” is programmed, see 5.3.4, p. 102.
– Check cable connection, see Electrical
Connections, p. 19.
– Replace the 6-way valve, see Replace
the 6-Way Valve, p. 65.
– Call service
– Check wiring on signal outputs 1 and 2
– Call service
– Call service
– Call service
A-96.250.811 / 091017 61
AMI Silitrace
Troubleshooting
Error Description Corrective action
E033 Sample Flow 1 low
(multi-channel instruments)
E034 Sample Flow 2 low
(multi-channel instruments)
E035 Sample Flow 3 low
(multi-channel instruments)
E036 Sample Flow 4 low
(multi-channel instruments)
E037 Sample Flow 5 low
(multi-channel instruments)
E038 Sample Flow 6 low
(multi-channel instruments)
E049 Power-on
E050 Power-down
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– Check inlet pressure
– Re-adjust sample flow
– Check programmed value, see
5.3.1.32.2, p. 97
– None, normal status
– None, normal status
62 A-96.250.811 / 091017
AMI Silitrace
A
B
C
D
A
E
F
G
H
Troubleshooting
7.2. Replace the reaction chamber
Replacing the reaction chamber may be necessary if:
Error 12, <Temp. time out> is shown.
Error 21, <Signal time out> is shown.
To replace the reaction chamber proceed as follows:
1 Shut down the Instrument according to Stop of Operation for
2 Pull the cuvette [C] out of the photometer unit.
3 Remove all tube connections from the connection panel [D].
4 Unscrew and remove the 4 cover fixing screws [A].
5 Remove the cover [B] from the photometer unit.
Maintenance, p. 47.
A
Cover fixing screws
B
Photometer module cover
C
Cuvette
D
Connection panel
E
Cuvette housing
F
Reaction chamber
G
Fixing screw
H
Insulating disc
6 Loosen the fixing screw [G] of the reaction chamber.
A-96.250.811 / 091017 63
AMI Silitrace
03
1B
2
04
3
4
Troubleshooting
7 Remove the reaction chamber from the photometer housing.
Install the new
reaction
chamber
1 Insert the new reaction chamber into the photometer housing
and tighten the fixing screw [G].
2 Put the cover [B] onto the photometer unit and tighten the 4
cover fixing screws [A].
3 Push the cuvette into the slot of the cuvette housing.
4 Connect all tubes to the connection panel according to the dia-
gram below.
64 A-96.250.811 / 091017
AMI Silitrace
A
B
C
D
Troubleshooting
7.3. Replace the 6-Way Valve
CAUTION
Never loosen the 4 allen screws [D] visible on the 6-way valve
body.
Remove the
6-way valve
Replacing the 6-way valve may be necessary if:
Error 25 <Rovalve> is shown.
A
6-way valve body
B
Valve fixing screw
C
Allen key 2.5 mm
D
Valve body fixing screw
To remove the 6-way valve from the housing proceed as follows:
1 Shut down the Instrument according to Stop of Operation for
Maintenance, p. 47.
2 Switch the instrument off.
3 Disconnect all tubes from the 6-way valve.
4 Disconnect all blind plugs from the 6-way valve.
5 Unscrew the valve fixing screws [B] with the allen key [C].
6 Remove the 6-way valve.
A-96.250.811 / 091017 65
AMI Silitrace
Troubleshooting
Install the
6-way valve
BACDEF
A
Blind plug
B
6-way valve
C
Fixing screw
D
Valve shaft with driving pin
Seal all unused Inputs with the enclosed blind plugs [A]. Proceed
as follows:
1 Make sure that the valve shaft with driving pin [D] is aligned with
the driving slot [F].
2 Install the 6-way valve so that the valve shaft with driving pin fits
into the driving slot of the motor shaft and the positioning screw
[E] fits into the guiding hole [G].
3 Attach the 6-way valve with the fixing screws [C] to the valve
housing, use the enclosed 2.5 mm Allen key.
4 Fit all tubes to the corresponding outputs/inputs of the 6-way
valve [B], see Replace the Reagent Tubes, p. 68.
5 Screw the blind plugs into the unused inputs of the 6-way valve.
6 Switch on the instrument and select <Maintenance>/
<Service>/<Fill System>.
7 Check all tube connections for leakage.
E
Positioning screw
F
Driving slot
G
Guiding hole
G
66 A-96.250.811 / 091017
AMI Silitrace
A
B
A
B
Troubleshooting
7.4. Replace the Cuvette
Replacing the cuvette may be necessary if:
Error 20 <FOME Dirty> is shown.
ABPhotometer module
Cuvette
ABPhotometer module
Cuvette
To exchange the cuvette proceed as follows:
1 Shut down the Instrument according to Stop of Operation for
Maintenance, p. 47.
2 Remove all tubes from the cuvette.
3 Pull the cuvette out of the photometer module.
4 Push the new cuvette as far as it will go into the slot of the pho-
tometer module.
A-96.250.811 / 091017 67
5 Connect all tubes to the cuvette, see Replace the Reagent
Tubes, p. 68.
6 Switch on the instrument and select <Maintenance>/
<Service>/<Fill System>.
7 Perform a cuvette factor determination, see 3.4.3, p. 84.
AMI Silitrace
11
12
04
12
1
7
6
543
2
1
05
05
1A
2
11A2 3 402
11
3
4
02
01
01
11
12
13
A
03
1B
2
3
4
04
03
04
4
3
04
03 2 3 4
1B
B
D
E
S
T
J
K
L
M
I
Troubleshooting
7.5. Replace the Reagent Tubes
Tube numbering
68 A-96.250.811 / 091017
AMI Silitrace
A
B
C
B
Troubleshooting
Nr. from to Length
1 Canister 1 [J] Peristaltic pump [T] inlet 2 1200 mm
2 Canister 2 [K] Peristaltic pump [T] inlet 3 1200 mm
3 Canister 3 [L] Peristaltic pump [T] inlet 4 1200 mm
4 Canister 4 [M] Peristaltic pump [T] inlet 5 1200 mm
1A
Peristaltic pump [T] outlet 2
1B Solenoid valve [S] top reaction chamber [D] 1B 125 mm
2 Peristaltic pump outlet 3 reaction chamber [D] 2 400 mm
3 Peristaltic pump outlet 4 reaction chamber [D] 3 400 mm
4 Peristaltic pump outlet 5 reaction chamber [D] 4 400 mm
01 Flow cell 6-way valve [I] 1 340 mm
02 6-way valve [I] 7 Peristaltic pump inlet 1 (diam.2.8) 340 mm
03 Peristaltic pump outlet 1 reaction chamber [D] 03 400 mm
Solenoid valve [R] bottom 280 mm
04 reaction chamber [D] 04 Cuvette [E] 04 160 mm
05 Standard bottle [B] 6-way valve [I] 5 800 mm
11 Cuvette [E] (Siphon tube) lower venting block 470 mm
Fix the siphon tube [A] to the
lower venting block [C] using the
two screws [B].
12 Cuvette [E] upper venting block 300 mm
13 Grab sample bottle [A] 6-way valve [I] 2 640 mm
A-96.250.811 / 091017 69
AMI Silitrace
A
Troubleshooting
7.6. Cleaning the solenoid valve
Disassemble
the solenoid
valve
The solenoid valve should be disassembled if it does not switch
anymore or if it is clogged.
1 Switch off the instrument according to instructions in Stop of
Operation for Maintenance, p. 47.
2 Loosen the nut (A).
3 Remove the solenoid coil (B) from
the valve body (C).
B
C
4 Loosen the fixing screws of the
valve body with a 2.5 mm Allen key
(D).
D
70 A-96.250.811 / 091017
AMI Silitrace
E
Troubleshooting
NOTICE: The O-rings inside the
valve body may stick on the flow
cell and fall down if the valve body
is removed.
5 Remove the valve body from the
flow cell.
6 Remove the base plate (G) with a
screw driver size 0 (F).
F
G
The membrane (H) is now
visible.
7 Clean base plate (G) and mem-
H
brane (H) with clean water.
Assemble Assemble the solenoid valve in reverse order.
A-96.250.811 / 091017 71
AMI Silitrace
A
B
CDEF G
Troubleshooting
7.7. Replacing Fuses
When a fuse has blown, find out the cause and fix it before replacing it with a new one.
Use tweezers or needle-nosed pliers to remove the defective fuse.
Use original fuses provided by SWAN only.
WARNING
External Voltage.
External supplied devices connected to relay 1 or 2 or to the
alarm relay can cause electrical shocks.
Make sure that the devices connected to the following con-
tacts are disconnected from the power before resuming installation.
–relay 1
–relay 2
– alarm relay
A
B
C
D
E
F
G
1.6 AT/250V Instrument power supply
1.0 AT/250V Relay 1
1.0 AT/250V Relay 2
1.0 AT/250V Alarm relay
1.0 AF/125V Signal output 2
1.0 AF/125V Signal output 1
1.0 AF/125V Signal output 3
72 A-96.250.811 / 091017
AMI Silitrace
Program Overview
8. Program Overview
For explanations about each parameter of the menus see Program
List and Explanations, p. 79.
Menu 1 Messages informs about pending errors and mainte-
nance tasks and shows the error history. Password protection
possible. No settings can be modified.
Menu 2 Diagnostics is always accessible for everybody. No
password protection. No settings can be modified.
Menu 3 Maintenance is for service: Calibration, verification,
zero, service, simulation of outputs and set time/date. Please
protect with password.
Menu 4 Operation is for the user, allowing to set limits, alarm
values, etc. The presetting is done in the menu Installation
(only for the System engineer). Please protect with password.
Menu 5 Installation: Defining assignment of all inputs and
outputs, measuring parameters, interface, passwords, etc.
Menu for the system engineer. Password strongly recommended.
8.1. Messages (Main Menu 1)
Pending Errors Pending Errors 1.1.5* * Menu numbers
1.1*
Maintenance List Maintenance Code 1.2.5*
1.2*
Message List Number 1.3.1*
1.3* Date, Time
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AMI Silitrace
Program Overview
8.2. Diagnostics (Main Menu 2)
Identification Designation AMI Silitrace * Menu numbers
2.1* Version V6.31-10/17
Peripherals PeriClip
2.1.3* RoValve
SiliTrace
Factory Test Instrument 2.1.3.1*
2.1.4* Motherboard
Operating Time Years / Days / Hours / Minutes / Seconds 2.1.4.1*
2.1.5*
Sensors SilTrace Temp.
2.2* 2.2.1* PWM
Photometer Current value 2.2.1.3.1*
2.2.1.3* (Raw value)
Absorbance
FOME Mean
Case Temp. 2.2.2.1*
2.2.2* State Machine 2.2.2.2*
History Zero History Number 2.2.3.1.1*
2.2.3* 2.2.3.1* Date, Time
Zero
Cal. History Number 2.2.3.2.1*
2.2.3.2* Date, Time
Factor
Ver. History Number 2.2.3.3.1*
2.2.3.3* Date, Time
Meas. Value
Reference value
Deviation
Grab Sample Number 2.2.3.4.1*
Date, Time
Sample ID
Sample
74 A-96.250.811 / 091017
AMI Silitrace
Program Overview
Cycle diagnostics P2P period 2.2.4.1*
2.2.4* P2P counter
Pump speed
Adjust cycle
Sample Sample ID 2.3.1*
2.3* Sample flow Sample flow 2.3.2.1*
2.3.2* (Raw value)
I/O State Alarm Relay 2.4.1*
2.4* Relay 1 and 2 2.4.2*
Input
Signal Output 1 and 2
Interface Protocol 2.5.1* (only with RS485
2.5* Baud rate interface)
8.3. Maintenance (Main Menu 3)
Calibration * Menu numbers
3.1*
Verification
3.2*
Zero
3.3*
Service Fill System Progress
3.4* 3.4.1*
Prepare maintenance Progress
3.4.2*
Cuvette factor det. Progress
3.4.3*
Simulation Alarm Relay 3.5.1*
3.5* Relay 1 3.5.2*
Relay 2 3.5.3*
Signal Output 1 3.5.4*
Signal Output 2 3.5.5*
Magnetic valve 1 3.5.6*
Magnetic valve 2 3.5.7*
Rotary valve 3.5.8*
A-96.250.811 / 091017 75
AMI Silitrace
Program Overview
Pump 3.5.9*
Set Time (Date), (Time)
3.6*
8.4. Operation (Main Menu 4)
Grab Sample * Menu numbers
4.1*
Sensors Filter Time Const. 4.2.1*
4.2* Hold after Cal. 4.2.2*
Reagents saving 4.2.3*
Relay Contacts Alarm Relay Alarm Si 1 Alarm High 4.3.1.1.1*
4.3* 4.3.1* 4.3.1.1* Alarm Low 4.3.1.1.25*
Hysteresis 4.3.1.1.35*
Delay 4.3.1.1.45*
Relay 1and 2 Setpoint 4.3.x.102*
4.3.2* and 4.3.3* Hysteresis 4.3.x.202*
Delay 4.3.x.30*
Input Active 4.3.4.1*
4.3.4* Signal Outputs 4.3.4.2*
Output / Control 4.3.4.3*
Fault 4.3.4.4*
Delay 4.3.4.5*
Logger Log Interval 4.4.1*
4.4* Clear Logger 4.4.2*
76 A-96.250.811 / 091017
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Program Overview
8.5. Installation (Main Menu 5)
Sensors Meas parameters Cal./Verif. Standard 5.1.1.1.1*
5.1* 5.1.1 5.1.1.1* Parameters Start time
5.1.1.1.2* Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Background Background 5.1.1.2.1*
5.1.1.2*
Auto-Zero Auto-Zero 5.1.1.3.1*
5.1.1.3* Start time 5.1.1.3.2*
Cuvette Factor
5.1.1.4*
Multi-Channel Channels 5.1.2.1*
Channel Selection 5.1.2.2*
Switching time 5.1.2.3*
Signal Outputs Signal Output 1and 2 Parameter 5.2.1.1 - 5.2.2.1*
5.2* 5.2.1* - 5.2.2* Current Loop 5.2.1.2 - 5.2.2.2*
Function 5.2.1.3 - 5.2.2.3*
Scaling Range Low 5.2.x.40.10/10*
5.2.x.40 Range High 5.2.x.40.20/20*
Relay Contacts Alarm Relay Alarm Si 1 Alarm High 5.3.1.1.1*
5.3* 5.3.1* 5.3.1.1* Alarm Low 5.3.1.1.25
Hysteresis 5.3.1.1.35
Delay 5.3.1.1.45
Sample Flow Flow Alarm 5.3.1.2.1*
5.3.1.2* Alarm High 5.3.1.2.2*
Alarm Low 55.3.1.2.35*
Case Temp. high 5.3.1.3*
Case Temp. low 5.3.1.4*
Relay 1 and 2 Function 5.3.2.1 –5.3.3.1*
5.3.2* and 5.3.3* Parameter 5.3.2.20–5.3.3.20*
Setpoint 5.3.2.302 – 5.3.3.302*
A-96.250.811 / 091017 77
AMI Silitrace
Program Overview
Hysteresis 5.3.2.402–5.3.3.402* * Menu numbers
Delay 5.3.2.50–5.3.3.50*
Input Active 5.3.4.1*
5.3.4* Signal Outputs 5.3.4.2*
Output/Control 5.3.4.3*
Fault 5.3.4.4*
Delay 5.3.4.5*
Miscellaneous Language 5.4.1*
5.4* Set defaults 5.4.2*
Load Firmware 5.4.3*
Password Messages 5.4.4.1*
5.4.4* Maintenance 5.4.4.2*
Operation 5.4.4.3*
Installation 5.4.4.4*
Sample ID 5.4.5*
Line break detection 5.4.6*
Auto-Save 5.4.7*
Interface Protocol 5.5.1* (only with RS485
5.5* Device Address 5.5.21* interface)
Baud Rate 5.5.31*
Parity 5.5.41*
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Program List and Explanations
9. Program List and Explanations
1 Messages
1.1 Pending Errors
1.1.5 Provides the list of active errors with their status (active, acknowl-
1.2 Maintenance List
1.2.5 Demands necessary maintenance, e.g. preparing new reagents.
1.3 Message List
1.3.1 Shows the error history: Error code, date/time of issue and status
2 Diagnostics
2.1 Identification
2.1.3 Peripherals:
2.1.3.1 PeriClip: Firmware of peristaltic pump (e.g. 1.06).
2.1.4 Factory Test: Test date of the Instrument and Motherboard
2.1.5 Operating Time: Years / Days / Hours / Minutes / Seconds
2.2 Sensors
2.2.1 SilTrace (photometer module):
2.2.1.3 Photometer:
edged). If an active error is acknowledged, the alarm relay is active
again. Cleared errors are moved to the Message list.
(active, acknowledged, cleared). 65 errors are memorized. Then
the oldest error is cleared to save the newest error (circular buffer).
In diagnostics mode, the values can only be viewed, not modified.
Designation: Designation of the instrument.
Version: Firmware of instrument (e.g. V6.31-10/17).
RoValve: Firmware of rotary valve (6-way valve) (e.g. 1.60).
SilTrace: Firmware of heater in the photometer module (e.g. 1.00).
Temp . Temperature inside the reaction chamber in °C
PWM: Heating power in percent (100 % at start-up)
Current value: Shows the photometer signal in ppb.
(Raw value): Shows the actual photometer signal in V.
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AMI Silitrace
A = -log
10
zero
FOME mean
Program List and Explanations
Absorbance:
FOME Mean: Raw signal in V, measured during T2 (pump
stopped) to calculate the concentration.
2.2.2 Miscellaneous:
Case Temp: Shows the current temperature in °C inside the
transmitter.
State Machine: Shows the current process of the instrument.
WARMUP The instrument is heating up after start-up or recov-
WAITRDY The instrument has a fatal error i.e. pump and
WAITFLOW
FLUSH Before and after performing a zero, a calibration, a
ery from a fatal error.
heater off. The instrument will stay in this state until
the fatal error is acknowledged or self cleared.
The instrument has a sample flow low (E010) alarm. In
this case, the pump stops but the heater stays on. It
remains in this state until the sample flow is re-established.
verification or a grab sample measurement and
after recovering from an alarm, the instrument is
flushing.
Measurement cycle
FIND PEAK Step 1 of measurement (pump on):
The instrument is in measuring mode, waiting for
the peak.
WAIT T1 Step 2 of measurement (pump on):
The instrument is in measuring mode, peak found
and filling the photometer de-aeration tube and the
siphon tube. See Fluidic, p. 10.
WAIT T2 Step 3 of measurement (pump off):
The instrument is in measuring mode, waiting for
stabilization. FOME mean is recorded. After this
state, the instrument goes back to FIND PEAK.
80 A-96.250.811 / 091017
AMI Silitrace
Program List and Explanations
Calibration, verification, zero or grab sample procedure
CAL INIT A calibration, verification, zero or grab sample mea-
surement has been initiated.
CAL END A calibration, verification, zero or grab sample mea-
surement has finished or been aborted.
Service functions
FILL INIT Service function ‘Fill system’ or ‘Prepare mainte-
nance’ has been initiated (always manually).
FILL The instrument fills the system.
STOP The instrument has finished ‘fill system’ or ‘prepare
maintenance’. The pump stops, the heater is on.
2.2.3 History
2.2.3.1 Zero History
2.2.3.1.1 Number: Counter of zero calibrations.
Date, Time: Date and time when a zero was performed.
Zero: Measuring value in V of the sample without reagent 1,
which is responsible for coloring the sample. A too high value
may result in a FOME dirty error.
2.2.3.2 Cal. History
2.2.3.2.1 Number: Counter of standard calibrations.
2.2.3.3 Verif. History
2.2.3.3.1 Number: Counter of verifications.
2.2.3.4 Grab sample
Date, Time: Date and time when the standard calibration was
performed.
Factor: Correction factor of the calibration curve.
Date, Time: Date and time when the verification was performed.
Meas. Value: Measuring value of the sample in ppb.
Reference value: Silica concentration in ppb of the standard
solution used.
Deviation: Deviation between the two measurements in %.
Number: Counter of grab samples.
Date, Time: Date and time when the grab sample was measured.
Sample ID: ID assigned by the user.
Sample: Measuring result of the grab sample measurement.
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AMI Silitrace
Program List and Explanations
2.2.4 Cycle diagnostics
P2P Diagram
2.3 Sample
2.3.2 Sample flow:
2.4 I/O State
2.4.1
2.5
2
1.5
1
FOME raw [V]
0.5
0
P2P period: interval between the last two peaks
P2P counter: shows the time of the current P2P period
Pump speed: shows the current speed code of the pump (0 – 30)
Adjust cycle: when the pump speed exceeds a given time limit 3
times, the pump speed will be readjusted. <Adjust cycles> shows
how many cycles are left before an adjustment.
(0 – 3)
Sample ID: Shows the assigned sample identification. This
identification is defined by the user to identify the location of the
sample.
Sample flow: shows the current sample flow in l/h
(Raw value): shows the current sample flow in Hz
Shows the actual status of all in- and outputs.
Alarm Relay:
Relay 1 and 2:
Input:
Signal Output 1 and 2:
Signal Output 3 (option):
Peak
Peak
P2P
Active or inactive.
Active or inactive.
Open or closed.
Actual current in mA
Actual current in mA
2.5 Interface
2.5.1 Interface:
Only available if the optional interface is installed. Shows the programmed communication settings.
82 A-96.250.811 / 091017
AMI Silitrace
Program List and Explanations
3 Maintenance
3.1 Calibration
3.1.5 During calibration, a solution of known silica concentration (stan-
3.2 Verification
3.2.5 During verification, a solution of known silica concentration (stan-
3.3 Zero
3.3.5 To determine the electronic offset and light intensity of the photom-
3.4 Service
3.4.1 Fill system
3.4.1.5 Activates the reagent pump and fills all tubes from the container to
3.4.2 Prepare Maintenance
dard) is measured and the measuring value is compared with the
reference value of the standard (set in 5.1.1.1, p. 87). The instrument then sets the calibration factor to adjust the photometer sensitivity.
It is recommended to perform a calibration:
at first start-up
after replacing the pump tubes
after replacing the cuvette
All calibrations are saved in the Calibration History.
dard) is measured and the mesuring value is compared with the reference value of the standard. The deviation is expressed in
percent. Unlike a calibration, a verification does not change the calibration factor.
It is recommended to check the performance of the system by an
automatic weekly verification (default setting).
All verifications are saved in the Verification History.
eter the sample is measured without adding the color forming reagent 1.
It is recommended to program an automatic daily zero calibration
(default setting).
the cuvette outlet.
All tubes are rinsed and emptied when starting this function.
NOTICE: Follow the instructions on the screen carefully,
otherwise the reagents in the canisters will be polluted with
already mixed reagents.
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AMI Silitrace
Program List and Explanations
3.4.3 Cuvette factor determination
The cuvette factor is unique for each combination of photometer
and cuvette. It is set at the factory and stored in a protected memory area (i. e. it is not deleted by a complete reset or an upgrade of
the firmware).
If the cuvette or photometer is replaced, the cuvette factor must be
determined again.
3.5 Simulation
To simulate a value or a relay state, select the
alarm relay
relay 1 and 2
signal output 1 and 2
with the [ ] or [ ] key.
Press the [Enter] key.
Change the value or state of the selected item with the [ ] or
[] key.
The value is simulated by the relay/signal output.
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6
3.5.7
3.5.8
3.5.9
Alarm Relay:
Relay 1:
Relay 2:
Signal Output 1:
Signal Output 2:
Magnetic valve 1*:
Magnetic valve 2*:
Rotary valve:
Pump:
* Magnetic valve 1: Zero calibration valve
Magnetic valve 2: Channel selector valve (AMI Silitrace Dual-Stream)
At the absence of any key activities, the instrument will switch back
to normal mode after 20 min. If you quit the menu, all simulated values will be reset.
Active or inactive.
Active or inactive.
Active or inactive
Actual current in mA
Actual current in mA
Active or inactive
Active or inactive
Position 1 to 6
Active or inactive
3.6 Set Time
Adjust date and time.
84 A-96.250.811 / 091017
AMI Silitrace
Program List and Explanations
4 Operation
4.1 Grab Sample
4.1.5 Starts a grab sample measurement. See Grab Sample Measure-
4.2 Sensors
4.2.1 Filter Time Constant: Used to damp noisy signals. The higher the
4.2.2
4.2.3
ment, p. 45.
filter time constant, the slower the system reacts to changes of the
measured value.
Range: 5–300 Sec
Hold after Cal: Delay permitting the instrument to stabilize again after
calibration. During calibration- plus hold-time, the signal outputs are
frozen (held on last valid value), alarm values, limits are not active.
Range: 0– 6‘000 Sec
Reagents saving: Increases the duration of the T2 state (pump off) to
save reagents.
Range: No, Minimum, Medium, Maximum
On a single-channel instrument, the reagent saving mode has the
following effect on the measuring cycle and reagent lifetime:
Option Measuring cycle Reagent lifetime
No 2.8 min approx. 28 d
Minimum 5.3 min approx. 50 d
Medium 7.8 min approx. 75 d
Maximum 10.3 min approx. 100 d
On a multi-channel instrument, the reagent saving effect depends on
the switching time (see
switched, the smaller the reagent saving effect is.
The following table shows the reagent saving effect for different
switching times if <Reagents saving> is set to <Maximum>. <Medium> and <Minimum> correspond to 66% and 33% of the reagent
saving effect.
Switching time Measuring cycle Reagent lifetime
15 min 3.0 min approx. 28 d
20 min 3.8 min approx. 35 d
30 min 5.5 min approx. 50 d
40 min 7.2 min approx. 70 d
50 min 8.8 min approx. 85 d
60 min 10.3 min approx. 100 d
5.1.2.3, p. 90
). The faster the channels are
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AMI Silitrace
Program List and Explanations
4.3 Relay Contacts
See Relay Contacts, p. 23
4.4 Logger
The instrument is equipped with an internal logger. The logger data
can be copied to a PC with an USB stick if the option USB interface
is installed.
The logger can save approx. 1500 data records. Records consists
of: Date, time, alarms, measured value(s), temperature, flow, absorbance and pump speed.
Range: 1 Second to 1 hour
4.4.1 Log Interval: Select a convenient log interval. Consult the table be-
low to estimate the max logging time. When the logging buffer is
full, the oldest data record is erased to make room for the newest
one (circular buffer).
Interval 1 s 5 s 1 min 5 min 10
min
Time 25 min 2 h 25 h 5 d 10 d 31 d 62 d
4.4.2 Clear Logger: If confirmed with yes, the complete logger data is de-
leted. A new data series is started.
30
min
1 h Event
Driven
86 A-96.250.811 / 091017
AMI Silitrace
Program List and Explanations
5 Installation
5.1 Sensors
5.1.1 Meas. Parameters
5.1.1.1 Cal./Verif.
5.1.1.1.1 Standard: The default standard is 100 ppb.
During a calibration or verification 15 ml standard is consumed.
Therefore a standard bottle lasts for 3 months at default interval
settings. The default interval settings are:
Start time: 06:00:00
Monday: Verification
All other days: Off
Range: 10.0 ppb to 1.0 ppm (1000 ppb)
5.1.1.1.2 Parameters
5.1.1.1.2.1 Start time: Program the daily start time of a verification or calibra-
tion. Default setting is 06:00:00
5.1.1.1.2.2
5.1.1.1.2.3 Tuesday: Same as Monday.
5.1.1.1.2.4 Wednesday: Same as Monday.
5.1.1.1.2.5 Thursday: Same as Monday.
5.1.1.1.2.6 Friday: Same as Monday.
5.1.1.1.2.7 Saturday: Same as Monday.
5.1.1.1.2.8 Sunday: Same as Monday.
Monday: Program a verification, a calibration or Off for this day. A verification or calibration will be started at the programed <start time>.
NOTICE: If there is an overlap between a programmed zero
calibration and a programmed calibration/verification, the zero
calibration is prioritized and the calibration/verification is
skipped.
A-96.250.811 / 091017 87
AMI Silitrace
Program List and Explanations
5.1.1.2 Reag, Background
5.1.1.2.1 Reag. Background: Enter the known basic pollution of the reagents.
5.1.1.3 Auto-Zero
5.1.1.3.1 Auto-Zero: Activate or deactivate the automatic daily zero calibra-
5.1.1.3.2 Start time: Enter the start time of an auto zero measurement.
5.1.1.4 Cuvette Factor: Shows the current cuvette factor.
5.1.2 Multi-Channel
5.1.2.1 Channels: If a Sample Sequencer is connected, set the number of
5.1.2.2 Channel Selection: The following three operating modes can be
The entered value will be subtracted form the measuring value.
tion.
NOTICE: The zero calibration is essential for a correct
measurement. Swan therefore strongly recommends to have
the option Auto-Zero activated.
If the option is deactivated, the zero calibration must be started
manually or via fieldbus at regular intervals.
active channels (up to 6).
Otherwise, set this parameter to 1 or 2 according to the instrument
variant.
set:
Internal
Fieldbus
External
88 A-96.250.811 / 091017
AMI Silitrace
CH1
SEQUENCER
Processor
CH2
CH3
CH4
CH5
6 Inputs from PLC
1 mA sink, 5 V open
CH6
GND
9
10
11
12
13
14
15
Program List and Explanations
Mode Internal In the Mode Internal, the AMI Silitrace works as a master.
AMI Silitrace Dual-Stream
The
instrument automatically switches between channel 1 and 2.
Sample Sequencer
The
AMI Silitrace sequentially measures each single sample
stream of the Sample Sequencer.
Via an external PLC it can be defined which sample streams should
not be measured. In the example below, only the sample streams
2, 4 and 6 are measured, whereas the samples streams 1, 3 and 5
are switched off. Sample streams which are switched off are
marked with an “x” behind the measuring value on the AMI Silitrace
display.
Mode Fieldbus The AMI Silitrace is controlled via fieldbus.
Mode External In the mode External, the AMI Silitrace works as a slave.
A-96.250.811 / 091017 89
AMI Silitrace Dual-Stream
The instrument is switched between sample stream 1 and 2 via input. Open: channel 1 is selected, closed: channel 2 is selected.
Sample Sequencer
The AMI Silitrace is controlled by the Sample Sequencer. The Sample Sequencer in turn is controlled via an external PLC. Each sample
stream to be measured has to be activated by closing the respective
contact.
AMI Silitrace
Program List and Explanations
Example:
If sample stream 1 of the Sample Sequencer is active, the AMI Silitrace measures the sample stream 1 until the Sample Sequencer
changes to the next programmed channel. In the example below, the
sample stream 3 (CH3) highlighted in green will be measured as
soon as the switching time has elapsed.
6 Inputs from PLC
1 mA sink, 5 V open
CH1
CH2
CH3
CH4
CH5
CH6
GND
9
10
11
12
13
14
15
SEQUENCER
Processor
5.1.2.3 Switching time: Time after which the instrument switches to the
next channel. The switching time is valid for all three operating
modes (Internal, Fieldbus and External).
Range: 15–60 min, selectable in 5 min steps
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AMI Silitrace
Program List and Explanations
5.2 Signal Outputs
NOTICE: The navigation in the menu <Signal Output 1> and
<Signal Output 2> is identical. For reason of simplicity only the
menu numbers of Signal Output 1 are used in the following.
5.2.1 and 5.2.2 Signal Output 1 and 2: Assign process value, the current loop
range and a function to each signal output.
5.2.1.1 Parameter: Assign one of the process values to the signal output.
5.2.1.2 Current Loop: Select the current range of the signal output. Make
5.2.1.3 Function: Define if the signal output is used to transmit a process
Available values:
Sample Flow
Si1
Si2 (AMI Silitrace Dual-Stream)
sure the connected device works with the same current range.
Available ranges: 0–20 mA or 4– 20 mA
value or to drive a control unit. Available functions are:
Linear, bilinear or logarithmic for process values.
See As process values, p. 92
Control upwards or control downwards for controllers.
See As control output, p. 93
A-96.250.811 / 091017 91
AMI Silitrace
20
1
01234
10 100 1’000 10’000
10 12
(0 - 20 [mA])
0 / 4
426
(4 - 20 [mA])
[mA]
X
Program List and Explanations
As process
values
The process value can be represented in 3 ways: linear, bilinear or
logarithmic. See graphs below.
[mA]
20
(0 - 20 [mA])
0 / 4
(4 - 20 [mA])
10 12
0.0 0.1 0.2 0.3 0.4 0.5
ABlinear
AB
X
X Measured value
bilinear
92 A-96.250.811 / 091017
X Measured value (logarithmic)
AMI Silitrace
Program List and Explanations
5.2.1.40 Scaling: Enter beginning and end point (Range low & high) of the
linear or logarithmic scale. In addition, the midpoint for the bilinear
scale.
Parameter Sample flow:
5.2.1.40.10 Range low: 0–50 l/h
5.2.1.40.20 Range high: 0–50 l / h
Parameter Si1:
5.2.1.40.11 Range low: 0.0 ppb to 1.00 ppm
5.2.1.40.21 Range high: 0.0 ppb to 1.00 ppm
Parameter Si2:
5.2.1.40.12 Range low: 0.0 ppb to 1.00 ppm
5.2.1.40.22 Range high: 0.0 ppb to 1.00 ppm
As control
output
A-96.250.811 / 091017 93
Signal outputs can be used for driving control units. We distinguish
different kinds of controls:
P-controller: The controller action is proportional to the devia-
tion from the setpoint. The controller is characterized by the
P-Band. In the steady-state, the setpoint will never be
reached. The deviation is called steady-state error.
Parameters: setpoint, P-Band
PI-controller: The combination of a P-controller with an
I-controller will minimize the steady-state error. If the reset
time is set to zero, the I-controller is switched off.
Parameters: setpoint, P-Band, reset time.
PD-controller: The combination of a P-controller with a
D-controller will minimize the response time to a fast change
of the process value. If the derivative time is set to zero, the
D-controller is switched off.
Parameters: setpoint, P-Band, derivative time.
PID-controller: The combination of a P-, an I - and a D-con-
troller allows a proper control of the process.
Parameters: setpoint, P-Band, reset time, derivative time.
AMI Silitrace
X
Y
B
A
L
a
Program List and Explanations
5.2.1.43 Control Parameters
5.2.1.43.10 Setpoint: User-defined process value (Measured value or flow)
5.2.1.43.20 P-Band: Range below (upwards control) or above (downwards con-
5.2.1.43 Control Parameters: if Parameters = Sample flow
5.2.1.43.10 Setpoint: 0– 50 l / h
5.2.1.43.20 P-Band: 0–50 l/h
5.2.1.43 Control Parameters: if Parameters = Si1 or Si2
5.2.1.43.12 Setpoint: 0.0 ppb to 1.00 ppm
5.2.1.43.22 P-Band: 0.0 ppb to 1.00 ppm
Ziegler-Nichols method for the optimization of a PID controller:
Parameters: Setpoint, P-Band, Reset time, Derivative time
A
Response to maximum control output
B
Tangent on the inflection point
X
Time
Xp
Tn
Tv
= 1.2/a
= 2L
= L/2
The point of intersection of the tangent with the respective axis will
result in the parameters a and L.
Consult the manual of the control unit for connecting and programming details. Choose control upwards or downwards.
If Control upwards or Control downwards is active
trol) the set-point, within the dosing intensity is reduced from 100%
to 0% to reach the set-point without overshooting.
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Program List and Explanations
5.2.1.43.3 Reset time: The reset time is the time till the step response of a sin-
gle I-controller will reach the same value as it will be suddenly
reached by a P-controller.
Range: 0–9’000 sec
5.2.1.43.4 Derivative time: The derivative time is the time till the ramp re-
5.2.1.43.5 Control timeout: If a controller action (dosing intensity) is constantly
5.2.4 Signal Sequencer: Only visible if a Sample Sequencer is
5.2.4.1 Parameter: Only the parameter “Si Sequencer” is available.
5.2.4.2 Current Loop: Select the current range of the signal output. Make
5.2.4.3 Scaling: Define the scaling of the signal output used to transmit a
sponse of a single P-controller will reach the same value as it will
be suddenly reached by a D-controller.
Range: 0–9’000 sec
over 90% during a defined period of time and the process value
does not come closer to the setpoint, the dosing process will be
stopped for safety reasons.
Range: 0–720 min
connected.
Assign process value, the current loop range and a function to the
signal output.
sure the connected device works with the same current range.
Available ranges: 0–20 mA or 4– 20 mA
process value. Available functions are:
Linear, bilinear or logarithmic for process values.
See As process values, p. 92.
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Program List and Explanations
5.3 Relay Contacts
5.3.1 Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact is inactive at:
Power loss
Detection of system faults like defective sensors or electronic
parts
High case temperature
Process values out of programmed ranges.
Program alarm levels for the following parameters:
Si1
Si2 (multi-channel instruments)
Sample Flow
Case Temperature high
Case Temperature low
5.3.1.1/ 5.3.1.2 Alarm Si1 and Si2
5.3.1.x.1 Alarm High: If the measured value rises above the alarm high val-
ue, the alarm relay is activated and E001/ E003, is displayed in the
message list.
Range: 0.0 ppb to 1.00 ppm
5.3.1.x.22 Alarm Low: If the measured value falls below the alarm low value,
the alarm relay is activated and E002/E004 is displayed in the
message list.
Range: 0.0 ppb to 1.00 ppm
5.3.1.x.32 Hysteresis: Within the hyst. range, the relay does not switch. This
prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range: 0.0 ppb to 1.00 ppm
5.3.1.x.42 Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm. Range: 0–28‘800 Sec
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Program List and Explanations
5.3.1.32 Sample Flow: Define at which sample flow a flow alarm should be
issued.
5.3.1.32.1 Flow Alarm: Program if the alarm relay should be activated if there
is a flow alarm. Choose between yes or no. The flow alarm will always be indicated in the display, pending error list, saved in the
message list and the logger.
Available values: Yes or no
NOTICE: Sufficient flow is essential for a correct measurement.
We recommend to program yes.
5.3.1.32.2 Alarm High: If the measuring values rises above the programmed
5.3.1.32.32 Alarm Low: If the measuring values falls below the programmed
5.3.1.42 Case Temp. high: Set the alarm high value for temperature of
5.3.1.5 Case Temp. low: Set the alarm low value for temperature of
value E009 will be issued.
Range: 0–50 l/h
value E010 will be issued.
Range: 0–50 l/h
electronics housing. If the value rises above the programmed value
E013 is issued.
Range: 30–75 °C
electronics housing. If the value falls below the programmed value
E014 is issued.
Range: -10–20 °C
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Program List and Explanations
5.3.2 and 5.3.3 Relay 1 and 2: The contacts can be set as normally open or normally closed with a jumper. See Relay 1 and 2, p. 24.
The function of relay contacts 1 or 2 are defined by the user
NOTICE: The navigation in the menu <Relay 1> and <Relay 2>
is identical. For reason of simplicity only the menu numbers of
Relay 1 are used in the following.
1 First select the functions as:
- Limit upper/lower,
- Control upwards/downwards,
- Timer
- Fieldbus
- Channel Selection (AMI Silitrace Dual-Stream)
2 Then enter the necessary data depending on the selected func-
tion.
5.3.2.1 Function = Limit upper/lower:
When the relays are used as upper or lower limit switches, program
the following:
5.3.2.20 Parameter: select a process value:
Sample flow
Si1
Si2 (AMI Silitrace Dual-Stream)
5.3.2.300 Setpoint: If the measured value rises above respectively falls below
the set-point, the relay is activated.
Range: 0.0 ppb to 1.00 ppm
5.3.2.400 Hysteresis: within the hysteresis range, the relay does not switch.
5.3.2.50
5.3.2.1 Function = Control upwards/ downwards:
This prevents damage of relay contacts when the measured value
fluctuates around the alarm value.
Range: 0.0 ppb to 1.00 ppm
Delay: Duration, the activation of the alarm relay is retarded after the
measuring value has risen above/fallen below the programmed alarm.
Range. 0– 600 sec
The relays may be used to drive control units such as solenoid
valves, membrane dosing pumps or motor valves. When driving a
motor valve both relays are needed, relay 1 to open and relay 2 to
close the valve.
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