Swan Analytical Instruments AMI Silica Operator's Manual
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Swan Analytical Instruments AMI Silica Operator's Manual

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A-96.250.671 / 070222
Operator's Manual
Firmware V6.22 and higher
AMI Silica

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Summary of Contents for Swan Analytical Instruments AMI Silica

  • Page 1 A-96.250.671 / 070222 Operator’s Manual Firmware V6.22 and higher AMI Silica...
  • Page 2 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 AMI Silica Operator’s Manual Title: A-96.250.671 Revision Issue Nov. 2011 First edition Nov.2013 Mainboard V2.4, update to firmware release 5.40 Okt.

  • Page 3: Table Of Contents

    AMI Silica Table of Contents Safety Instructions ..........
  • Page 4 AMI Silica Operation ........... . . 42 5.1.
  • Page 5 AMI Silica Material Safety Data sheets ........96 10.1.

  • Page 6: Safety Instructions

    AMI Silica Safety Instructions Operator’s Manual This document describes the main steps for instrument setup, opera- tion and maintenance. Safety Instructions General The instructions included in this section explain the potential risks associated with instrument operation and provide important safety practices designed to minimize these risks.

  • Page 7: Warning Notices

    AMI Silica Safety Instructions 1.1. Warning Notices The symbols used for safety-related notices have the following meaning: DANGER Your life or physical wellbeing are in serious danger if such warn- ings are ignored.  Follow the prevention instructions carefully. WARNING Severe injuries or damage to the equipment can occur if such warnings are ignored.
  • Page 8 AMI Silica Safety Instructions Warning Signs The warning signs in this manual have the following meaning: Electrical shock hazard Corrosive Harmful to health Flammable Warning general Attention general A-96.250.671 / 070222...

  • Page 9: General Safety Regulations

    AMI Silica Safety Instructions 1.2. General Safety Regulations Legal The user is responsible for proper system operation. All precautions must be followed to ensure safe operation of the instrument. Requirements Spare Parts Use only official SWAN spare parts and disposables. If other parts are used during the normal warranty period, the manufacturer’s war-...

  • Page 10: Restrictions For Use

    AMI Silica Safety Instructions 1.3. Restrictions for Use The sample must not contain any particles, which may block the flow cell. Sufficient sample flow is coercive for the correct function of the instrument. WARNING For safe instrument installation and operation you must read and understand the instructions in this manual, as well as the Material Safety Data Sheets (MSDS).

  • Page 11: Product Description

    Grab sample The measuring mode grab sample allows the measurement of sam- ples from remote locations. Second If required the AMI Silica can be equipped with the optional second sample stream module. sample stream Sample If measurement of more than two sample streams is required, the...
  • Page 12 AMI Silica Product Description Alarm relay One potential free contact. Alternatively:  Open during normal operation, closed on error and loss of power.  Closed during normal operation, open on error and loss of power. Summary alarm indication for programmable alarm values and in- strument faults.
  • Page 13 AMI Silica Product Description Level Constant head Reagent 2 Overflow tube Reagent 3 Solenoid valve Reagent 4 Sample inlet photometer 6-way valve Sample outlet Peristaltic pump Photometer Loop Magnetic stirrer Flow regulating valve Bubble counter Sample inlet Waste Air Inlet Reagent 1 A-96.250.671 / 070222...
  • Page 14 AMI Silica Product Description Measurement The quantities of the reagents are precisely defined by a certain number of rotations of the peristaltic pump. After the predefined cycle quantity of a reagent has been sucked from the container, the 6-way valve is rotated to position 5, where sample from the photometer is sucked into the loop [P].
  • Page 15 AMI Silica Product Description  The peristaltic pump rotates for a certain time. The reagent free sample in the photometer is sucked into the reagent pipe and then via loop pumped back into the photometer. A measuring cycle takes 10 minutes.

  • Page 16: Instrument Specification

    AMI Silica Product Description 2.1. Instrument Specification Power supply AC variant: 100–240 VAC (± 10%) 50/60 Hz (± 5%) DC variant 10–36 VDC Power consumption: max. 35 VA Transmitter Housing: aluminum, with a protection degree of specifications IP 66 / NEMA 4X Ambient temperature: −10 to +50 °C...
  • Page 17 AMI Silica Product Description Dimensions Panel: stainless steel Dimensions: 400 x 850 x 160 mm Screw diameter: 8 mm Weight: 16.0 kg 400 mm / 15.75" 374 mm / 14.72" Level Exit Enter AMI Silica A-96.250.671 / 070222...

  • Page 18: Instrument Overview

    AMI Silica Product Description 2.2. Instrument Overview Transmitter Flow regulating valve Panel Solenoid valve 6-way valve control box Sample inlet with sample 6-way valve switch (2nd sample stream Peristaltic pump option) Reagent 1 Photometer with magnetic Reagent 2 stirrer Reagent 3...

  • Page 19: Installation

    AMI Silica Installation Installation 3.1. Installation Checklist On-site require- AC variant: 100–240 VAC ( 10%), 50/60 Hz ( 5%) ments DC variant: 10–36 VDC Power consumption: 35 VA maximum. Protective earth connection required. Sample line with sufficient sample flow and pressure (see Instru- ment Specification, p.

  • Page 20: Mounting Of Instrument Panel

    AMI Silica Installation 3.2. Mounting of Instrument Panel The first part of this chapter describes the preparing and placing of the system for use.  The instrument must only be installed by trained personnel.  Mount the instrument in vertical position.

  • Page 21: Install The Constant Head

    AMI Silica Installation 3.3. Install the Constant Head Constant head cover Constant head tube Overflow tube O-Ring Flow cell block Flow regulating valve Solenoid valve Level 1 Push the overflow tube [C] through the flow cell block [E] as far as it ends the waste funnel.

  • Page 22: Connect Sample And Waste

    AMI Silica Installation 3.4. Connect Sample and Waste 3.4.1 Sample Inlet Use plastic tube (FEP, PA, or PE 4 x 6 mm) to connect the sample line. Mounting of Screw connection SERTO fitting Compression ferrule Knurled nut Flexible tube 3.4.2...

  • Page 23: Install The 2Nd Sample Stream Option

    AMI Silica Installation 3.5. Install the 2 Sample Stream Option Level Exit Enter AMI SILICA SiO2 Process Analyzer Block housing Sample stream 1 Connecting piece Sample stream 2 2 O-rings Waste (15x20 mm) Blind Plug Fixing screws Flow regulating valve...
  • Page 24 AMI Silica Installation 3 Unscrew and remove the flow regulating valve [E] from the flow cell block [F]. 4 Screw the blind plug [D] into the flow cell block. 5 Remove the sample inlet tube [N] from the sample inlet (elbow union) [G].
  • Page 25 AMI Silica Installation Connect the solenoid valve WARNING Electrical shock hazard! Before opening the AMI Transmitter switch power off. Use one of the PG7 cable glands to feed the cable of the solenoid valve into the AMI transmitter housing. 1 Remove the plug [A] from the cable gland [B].

  • Page 26: Install The Ami Sample Sequencer

    Sample connection with 2 sample stream If an AMI Sample Sequencer is connected to an AMI Silica with a second sample stream option [A], sample inlet 2 will be automatically switched off and only sample inlet 1 will be active.

  • Page 27: Electrical Connections

    AMI Silica Installation 3.7. Electrical Connections WARNING Risk of electrical shock. Do not perform any work on electrical components if the transmit- ter is switched on. Failure to follow safety instructions could result in serious injury or death.  Always turn off power before manipulating electric parts.
  • Page 28 AMI Silica 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 contacts are disconnected from the power before resuming installation.

  • Page 29: Connection Diagram

    AMI Silica Installation 3.7.1 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-96.250.671 / 070222...

  • Page 30: Power Supply

     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 Silica A-96.250.671 / 070222...

  • Page 31: Relay Contacts

    AMI Silica Installation 3.8. Relay Contacts 3.8.1 Input Note: 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. If signal output is set to hold, measurement is interrupted if input is active.

  • Page 32: Relay 1 And 2

    AMI Silica Installation 3.8.3 Relay 1 and 2 Note: Max. load 1 A/250 VAC Relay 1 and 2 can be configured as normally open or as normally closed. Standard for both relays is normally open. To configure a Re- lay as normally closed, set the jumper in the upper position.
  • Page 33 AMI Silica 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, dos- ing 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.

  • Page 34: Signal Outputs

    AMI Silica Installation 3.9. Signal Outputs 3.9.1 Signal Output 1 and 2 (Current Outputs) Note: Max. burden 510 Ω. If signals are sent to two different receivers, use signal isolator (loop isolator). Signal output 1: Terminals 14 (+) and 13 (-)

  • Page 35: Signal Output 3

    AMI Silica Installation 3.10.1 Signal Output 3 Terminal 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.

  • Page 36: 3.10.3 Hart Interface

    AMI Silica Installation 3.10.3 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 3.10.4 USB Interface The USB Interface is used to store Logger data and for Firmware upload.

  • Page 37: Instrument Setup

    AMI Silica Instrument Setup Instrument Setup 4.1. 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 frame [B] clockwise to activate the peristaltic pump.

  • Page 38: Establish Sample Flow

    AMI Silica Instrument Setup 4.3. Establish Sample Flow CAUTION Pollution of the reagents If the occlusion frames are not closed, sample may flow into the reagents.  Lock the occlusion frames before establishing the sample flow. Single-channel Cover instrument Outer tube...
  • Page 39 AMI Silica Instrument Setup Two-channel Cover instrument Outer tube Blind plug Flow regulating valves Level Second sample stream option If the second sample stream option is installed, proceed as follows: 1 Switch on power. 2 Adjust the sample flow using the flow regulating valves [D] of the second sample stream option.
  • Page 40 AMI Silica Instrument Setup Instrument Cover with AMI Sam- Outer tube ple Sequencer Flow cell block of the constant head Level Flow regulating valve If an AMI Sample Sequencer is installed, proceed as follows: 1 Switch on power. 2 Open the flow regulating valve [D] on the flow cell block of the constant head.

  • Page 41: Programming

    If an AMI Sample Sequencer is installed, make the following settings:  On the AMI Sample Sequencer, navigate to <Installation>/ <Sequence> and select “AMI”.  On the AMI Silica, select the number of available channels and the channel selection mode. See 5.1.5, p. 81 5.1.6, p.

  • Page 42: Operation

    AMI Silica Operation Operation 5.1. Function of the Keys Exit Enter to exit a menu or command (rejecting any changes) to move back to the previous menu level to move DOWN in a menu list and to decrease digits to move UP in a menu list and to increase digits...

  • Page 43: Measured Values And Symbols On The Display

    AMI Silica Operation 5.2. Measured Values and Symbols on the Display Display when operating with one sample stream 15:20:18 15:10:52 24.2°C 31 B/s A RUN normal operation HOLD input closed or cal delay: Instrument on hold (shows status of signal outputs).
  • Page 44 ~ No sample flow n Measurement not valid (not visible in this example) x Only visible if a Sample Sequencer is connected to the AMI Silica. Indicates that the sample stream is inactive. G Sample flow in bubbles per second H Sample temperature Relay status A-96.250.671 / 070222...

  • Page 45: Software Structure

    AMI Silica Operation 5.3. Software Structure Main Menu Messages Diagnostics Maintenance Operation Installation Menu Messages 1 Messages Reveals pending errors as well as an event history Pending Errors (time and state of events that have occurred at an Maintenance List earlier point of time).

  • Page 46: Changing Parameters And Values

    AMI Silica Operation 5.4. Changing Parameters and Values Changing The following example shows how to change the logger interval: parameters 1 Select the parameter you want to Sensors Logger 5.1.2 4.4.1 change. Sensor type FOME Log interval 30 min 2 Press [Enter] Disinf.

  • Page 47: Grab Sample Measurement

    AMI Silica Operation 5.5. Grab Sample Measurement Status of relays and signal outputs during the procedure:  Signal outputs are on hold  All limits are switched off 1 Navigate to <Operation>/<Grab Sample>. 2 Follow the instructions on the screen.

  • Page 48: Maintenance

    AMI Silica Maintenance Maintenance 6.1. Maintenance Schedule Weekly Check sample supply for dirt. Check sample flow. Monthly Check reagent level. Every 6 months Exchange reagent pump tube. By occurrence: E020, FOME dirty: Cleaning the Photometer, p. 56 E022, Reagent empty: Refill or replace Reagents, p.

  • Page 49: Refill Or Replace Reagents

    AMI Silica Maintenance 6.3. Refill or replace Reagents The liquid level in container 4 is monitored. The following messages are displayed. Container almost Maintenance E065 - Reagents low and the empty remaining reagent volume in % (starting at 17% = 340 ml).
  • Page 50 AMI Silica Maintenance Reagent The 2 liter reagent canister will last for 1 month of operation with de- fault measurement interval of 10 minutes. The provided reagent set consumption for 3 canister fillings therefore lasts for 3 months of operation.
  • Page 51 AMI Silica Maintenance Reagent 1 Ammonium molybdate  Reagent 1a: Add 56 g of ammonium molybdate tetrahydrate  Reagent 1b: Add 16 g of sodium hydroxide pellets Reagent 2 Sulfuric Acid  Add 200 ml sulfuric acid 25% to the container.

  • Page 52: Verification

    AMI Silica Maintenance 6.4. Verification The “Verification kit for AMI Photometer” is available as an accessory. An optical window with a precisely deter- mined absorbance value is placed into the light beam of the photometer. The actual measured absorbance will be compared to the reference value labeled on each kit.

  • Page 53: Calibration

    AMI Silica Maintenance 6.5. Calibration Preparing Swan offers a 100 ppm stock solution, from which you can produce your own standard. By default, the instrument is programmed for a the standard standard of 100 ppb. Other concentrations can be programmed in menu <Installation>/<Sensors>/<Standard>.

  • Page 54: Cleaning The Flow Cell

    AMI Silica Maintenance 6.6. Cleaning the Flow Cell CAUTION Acrylic glass parts are fragile and scratch-sensitive. Possible damage of acrylic glass parts due to scrubbing materi- als.  Never use organic solvents or scrubbing materials to clean acrylic glass parts.
  • Page 55 AMI Silica Maintenance Constant head cover Constant head tube Overflow tube O-Ring Flow cell block Flow regulating valve Solenoid valve Level Cleaning 1 Remove the constant head cover [A]. 2 Pull the constant head tube [B] (constant head) out of the flow cell block [E].

  • Page 56: Cleaning The Photometer

    AMI Silica Maintenance 6.7. Cleaning the Photometer Clean the photometer after indication by alarm (E020, FOME dirty). Before opening the photometer, switch off the instrument according to instructions in Stop of Operation for Maintenance, p. 48 Material Small brush. Procedure...

  • Page 57: Cleaning The Solenoid Valve

    AMI Silica Maintenance 6.8. Cleaning the solenoid valve Disassemble The solenoid valve is mounted below the constant head. The sole- noid valve should be disassembled if it does not switch anymore or if the solenoid it is clogged. valve 1 Switch off the instrument according to instructions in Stop of Op- eration for Maintenance, p.
  • Page 58 AMI Silica Maintenance Note: 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 white plate (G) with a screw driver size 0 (F).

  • Page 59: Tube Replacement

    AMI Silica Maintenance 6.9. Tube Replacement 6.9.1 Replace the Pump Tubes The pump tube [D] of the peristaltic pump is exposed to a minimal wear. It is therefore recommended to exchange the pump tube every 6 months. CAUTION Pollution of reagents possible.
  • Page 60 AMI Silica Maintenance Dismount The pump tube can easily be dismounted and mounted. Proceed as follows: pump tubes Pump housing Occlusion frame open Rotor Pump tube Pump inlet Pump outlet 1 Switch off the instrument according to instructions in Stop of Op- eration for Maintenance, p.

  • Page 61: Tube Numbering

    AMI Silica Maintenance 6.9.2 Tube Numbering Level Tube from Reagent container J 6-way valve port 1 Reagent container K 6-way valve port 2 Reagent container L 6-way valve port 3 Reagent container M 6-way valve port 4 6-way valve port 5...

  • Page 62: 6.10. Fill Or Flush Reagent System

    AMI Silica Maintenance 6.10. Fill or Flush Reagent System Fill or flush the reagent tubing:  after refilling the reagent containers,  before a system shut-down to flush the system with demin water until no more reagent is left in the system.

  • Page 63: Troubleshooting

    AMI Silica Troubleshooting Troubleshooting This chapter provides some hints to make troubleshooting easier. For any detailed information how to handle or clean parts please see Maintenance, p. 48. For information on how to program the instru- ment see Program List and Explanations, p.
  • Page 64 AMI Silica Troubleshooting Check pump A low calibration factor may be caused by leaking tube connections. The delivery volume of the peristaltic pump is approximately 4.2 g/ delivery min. volume 2.1 g Flow regulating valve Beaker Peristaltic pump Balance Tube fitting Check the delivery volume of the peristaltic pump as follows: 1 Close the flow regulating valve [A] to stop the sample flow.

  • Page 65: Grab Sample

    AMI Silica Troubleshooting 8 After the 6-way valve position has been set, select <Pump> and press [Enter]. 9 Set the pump to <on> for a half minute.  The reagent is pumped into the beaker. 10 Read the weight on the display of the balance.

  • Page 66: Error List

    AMI Silica Troubleshooting 7.3. 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.
  • Page 67 AMI Silica Troubleshooting Error Description Corrective action E001 – check process Si 1 Alarm high – check programmed value 5.3.1.1.1, p. E002 – check process Si 1 Alarm low – check programmed value 5.3.1.1.25, p. E003 – check process Si 2 Alarm high –...
  • Page 68 AMI Silica Troubleshooting Error Description Corrective action E017 – check control device or programming in Control Timeout Installation, Relay contact, Relay 1/2 5.3.2 and 5.3.3, p. 88 – shut off power E018 Reagent Pump – check wiring, see Connection Diagram, p.
  • Page 69 AMI Silica Troubleshooting Error Description Corrective action – See operating manual Sample E037 Sample Flow 5 low Sequencer (Sample Sequencer) – See operating manual Sample E038 Sample Flow 6 low Sequencer (Sample Sequencer) E049 – none, normal status Power-on E050 –...

  • Page 70: Opening The Peristaltic Pump Housing

    AMI Silica Troubleshooting 7.4. Opening the peristaltic pump housing For some electrical connections (e.g. when replacing suction lanc- es), it is necessary to open the housing of the peristaltic pump. To do this, proceed as follows: 1 Switch off the analyzer according to Stop of Operation for Mainte- nance, p.

  • Page 71: Replacing Fuses

    AMI Silica Troubleshooting Replacing Fuses 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 contacts are disconnected from the power before resuming installation.

  • Page 72: Program Overview

    AMI Silica Program Overview Program Overview For explanations about each parameter of the menus see Program List and Explanations, p.  Menu 1 Messages informs about pending errors and mainte- nance tasks and shows the error history. Password protection possible. No settings can be modified.

  • Page 73: Diagnostics (Main Menu 2)

    AMI Silica Program Overview 8.2. Diagnostics (Main Menu 2) Identification Designation AMI Silica * Menu numbers 2.1* Version V6.22-01/22 Peripherals 2.1.3.1* PeriClip 1.06 2.1.3 RoValve 1.60 Factory Test 2.1.4.1* Instrument 2.1.4* Motherboard Operating Time Years / Days / Hours / Minutes / Seconds 2.1.5.1*...

  • Page 74: Maintenance (Main Menu 3)

    AMI Silica Program Overview 8.3. Maintenance (Main Menu 3) Calibration * Menu numbers Calibration Progress 3.1* 3.1.5* Service Verification 3.2.1.1* (Progress) 3.2* 3.2.1* Fill System 3.2.2.5* (Progress) 3.2.2* Manual Filling Position 3.2.3.1* 3.2.3 3.2.3.2* Pump Simulation 3.3.1* Alarm Relay 3.3* 3.3.2*...

  • Page 75: Installation (Main Menu 5)

    AMI Silica Program Overview Input 4.3.4.1* * Menu numbers Active 4.3.4* 4.3.4.2* Signal Outputs 4.3.4.3* Output / Control Fault 4.3.4.4* 4.3.4.5* Delay Logger 4.4.1* Log Interval 4.4* 4.4.2* Clear Logger 8.5. Installation (Main Menu 5) Sensors 5.1.1* Ref. Veification 5.1* 5.1.2*...

  • Page 76: Parameter

    AMI Silica Program Overview Relay 1/2 5.3.2.1 - 5.3.3.1* * Menu numbers Function 5.3.2* - 5.3.3* 5.3.2.20 - 5.3.3.20* Parameter 5.3.2.302-5.3.3.302* Setpoint Hysteresis 5.3.2.402-5.3.3.402* 5.3.2.50 - 5.3.3.50* Delay Input 5.3.4.1* Active 5.3.4* 5.3.4.2* Signal Outputs 5.3.4.3* Output/Control Fault 5.3.4.4* 5.3.4.5*...

  • Page 77: Program List And Explanations

    AMI Silica Program List and Explanations Program List and Explanations 1 Messages 1.1 Pending Errors 1.1.5 Provides the list of active errors with their status (active, acknowl- edged). If an active error is acknowledged, the alarm relay is active again. Cleared errors are moved to the Message list.
  • Page 78 AMI Silica Program List and Explanations 2.2.1.5 Ver. History: Review verifications values of the last verifications: Absorbance: Measured absorbance of the reference kit. Reference value: True value of the reference kit according to label. 2.2.2 Miscellaneous: 2.2.2.1 Case Temp: Shows the actual temperature in [°C] inside the trans- mitter.

  • Page 79: Maintenance

    AMI Silica Program List and Explanations 2.4 I/O State Shows actual status of all in- and outputs. 2.4.1 and 2.4.2 Active or inactive Alarm Relay: Active or inactive Relay 1 and 2: Input: Open or closed Actual current in mA...

  • Page 80: Operation

    AMI Silica Program List and Explanations 3.3 Simulation Select the alarm relay, relay 1 and 2, signal output 1 and 2, input, magnetic valve 1 and 2 or stirrer with the up/down keys. Then press <Enter> to change the setting or value. After confirming the setting with the Enter key, the value is simulated by the relay/signal output.

  • Page 81: Installation

    Meas. Interval: The measuring interval can be set to 10, 15, 20 or 30 minutes. 5.1.5 Channels: If the 2 sample stream option is installed, you can choose 1 or 2 channels. If an AMI Sample Sequencer is connected to the AMI Silica, you can choose 1 to 6 channels. A-96.250.671 / 070222...
  • Page 82  Internal  Fieldbus  External Mode Internal In the mode internal, the AMI Silica works as a master. Sample Stream Option The AMI Silica switches automatically between channel 1 and 2. Sample Sequencer The AMI Silica sequentially measures each single sample stream of the Sample Sequencer.
  • Page 83 AMI Silica Program List and Explanations Example: If sample stream 1 of the Sample Sequencer is active, the AMI Silica 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 AMI analyzer has finished the previous measurement.The current...
  • Page 84 AMI Silica Program List and Explanations As process The process value can be represented in 3 ways: linear, bilinear or logarithmic. See graphs below. values [mA] 0 / 4 X Measured value linear bilinear [mA] 0 / 4 1’000 10’000 X Measured value (logarithmic) 5.2.1.40...
  • Page 85 AMI Silica Program List and Explanations Parameter Si 1 5.2.1.40.12 Range low: 0 ppb–5 ppm 5.2.1.40.22 Range high: 0 ppb–5 ppm As control Signal outputs can be used for driving control units. We distinguish different kinds of controls: output  P-controller: The controller action is proportional to the devia- tion from the setpoint.
  • Page 86 AMI Silica Program List and Explanations 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 program- ming details. Choose control upwards or downwards.
  • Page 87 AMI Silica Program List and Explanations 5.2.4.2 Current Loop: Select the current range of the signal output. Make sure the connected device works with the same current range. Available ranges: 0–20 mA or 4–20 mA 5.2.4.3 Scaling: Define the scaling of the signal output used to transmit a process value.
  • Page 88 AMI Silica Program List and Explanations 5.3.1.1.45 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 5.3.1.2 Sample Temp.: Define at which sample temperature an alarm should be issued.

  • Page 89: Setpoint

    AMI Silica Program List and Explanations Note: The navigation in the menu <Relay 1> and <Relay 2> is equal. For reason of simplicity only the menu numbers of Relay 1 are used in the following. 1 First select the functions as:...

  • Page 90: Cycle Time

    AMI Silica Program List and Explanations 5.3.2.1 Function = Control upwards/downwards: 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.

  • Page 91: Neutral Zone

    AMI Silica Program List and Explanations 5.3.2.32.32 Neutral zone: Minimal response time in % of the runtime. If the re- quested dosing output is smaller than the response time, no change will take place. Range: 1–20 % 5.3.2.32.4 Control Parameters Range for each Parameter same as 5.2.1.43, p.

  • Page 92: Start Time

    AMI Silica Program List and Explanations 5.3.2.24 daily The relay contact can be activated daily, at any time of a day. 5.3.2.341 Start time: to set the start time proceed as follows: 1 Press [Enter], to set the hours. 2 Set the hour with the [ ] or [ ] keys.
  • Page 93 AMI Silica Program List and Explanations 5.3.3.1 Function = End of Batch This function is only available on relay 2. It is used to communicate with canal switching instruments from third-party suppliers. The relay closes for 1 sec. after each valid measurement. If End of Batch is se- lected, no further selection is possible.

  • Page 94: Set Default

    AMI Silica Program List and Explanations 5.3.4.4 Fault: No message is issued in pending error list and the alarm relay does not close when input is active. Message E024 is stored in the message list. Message E024 is issued and stored in the message Yes: list.

  • Page 95: Sample Id

    AMI Silica Program List and Explanations 5.4.4 Password: Select a password different from 0000 to prevent unauthorized access to the following menus: 5.4.4.1 Messages 5.4.4.2 Maintenance 5.4.4.3 Operation 5.4.4.4 Installation. Each menu may be protected by a different password. If you forgot the passwords, contact the closest SWAN representative.

  • Page 96: Material Safety Data Sheets

    10.1. Reagents Catalogue No.: Part of Article No. A - 85.420. 560 Product name: OXYCON ON-LINE SILICA Reagent 1a for AMI Silica Ammonium heptamolybdate tetrahydrate Catalogue No.: Part of Article No. A - 85.420. 560 Product name: OXYCON ON-LINE SILICA...

  • Page 97: Default Values

    AMI Silica Default Values Default Values Operation: Sensors: Filter Time Const.:................ 10 s Hold after Cal.:................300 s Alarm Relay .................same as in Installation Relay 1 and 2 .................same as in Installation Input .................same as in Installation Logger Logger Interval:.............. Event Driven Clear Logger: ..................
  • Page 98 AMI Silica Default Values Relay1 and 2 Function:................limit upper Parameter:..................Si 1 Setpoint: ................1.0 ppm Hysteresis:................10 ppb Delay: ...................30 s If Function = Control upw. or dnw: Parameter:..................Si 1 Settings: Actuator: ............Frequency Settings: Pulse Frequency: ..........120/min Settings: Control Parameters: Setpoint:......

  • Page 99: Index

    AMI Silica Index Index ..Interface Profibus DP ..– ... . Interface RS485 Alarm Relay .
  • Page 100 AMI Silica Index ... . Ammonium Ferrous Sulfate Silica Measurement ......

  • Page 101: Notes

    AMI Silica Notes Notes A-96.250.671 / 070222...
  • Page 102 Swan Products - Analytical Instruments for: Swan is represented worldwide by subsidiary companies and distributors and cooperates with independent representatives all over the world. For contact in- formation, please scan the QR code. Swan Analytical Instruments ∙ CH-8340 Hinwil www.swan.ch ∙ swan@swan.ch AMI Silica...

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