Swan Analytical Instruments AMI Hydrazine Operator's Manual

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AMI Hydrazine

Version 5.40 and higher

s Manual

Operator’

A-96.250.501 / 280915

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 Hydrazine Operator’s Manual

A-96.250.501

Revision Issue

00 June 2007 First Edition

01 April 2015 Update to Rev. 5.40, main board V2.4

subject to change without notice .

AMI Hydrazine

Table of Content

1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1. Warning Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2. General Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3. Restrictions for use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1. Description of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2. Instrument Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3. Instrument Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1. Installation Checklist Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2. Mounting of Instrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3. Connecting Sample and Waste . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4. Install the Reference Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.5. Install the Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.6. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6.1 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.6.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.7. Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.7.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.7.2 Alarm Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.7.3 Relay Contacts 1 and 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.8. Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.8.1 Signal Output 1 and 2 (current outputs) . . . . . . . . . . . . . . . . . . 25

3.9. Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.9.1 Signal Output 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.9.2 Hyperterminal Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.9.3 Profibus, Modbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.9.4 USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4. Instrument Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.1. Install the Diisopropylamine Bottle . . . . . . . . . . . . . . . . . . . . . . . . 28

4.2. Establish Sample Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3. Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4. Run in period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.5. Correction of Hydrazine Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 30

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AMI Hydrazine

5. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1. Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2. Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3. Software Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4. Changing Parameters and values. . . . . . . . . . . . . . . . . . . . . . . . . 34

6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.1. Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.2. Stop of Operation for Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 36

6.3. Cleaning of protective filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.4. Cleaning of Hydrazine sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.5. Cleaning of Reference Electrode . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.6. Cleaning of Flow Cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.7. Changing Diisopropylamine Bottle . . . . . . . . . . . . . . . . . . . . . . . . 44

6.8. Changing the Diffusion Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.9. Calibration of Hydrazine Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.9.1 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.9.2 Zero Hydrazine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.9.3 Process Hydrazine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.10. Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.11. Longer Stop of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.1. Error List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8. Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.1. Messages (Main Menu 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.2. Diagnostics (Main Menu 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8.3. Maintenance (Main Menu 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.4. Operation (Main Menu 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.5. Installation (Main Menu 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

9. Program List and Explanations. . . . . . . . . . . . . . . . . . . . . . . . . 61

1 Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

10. Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

11. Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

12. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

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AMI Hydrazine

Safety Instructions

AMI Hydrazine - Operator’s Manual

This document describes the main steps for instrument setup, operation and maintenance.

1. Safety Instructions

General The instructions included in this section explain the potential risks

Targ et

audience

OM Location The AMI Operator’s Manual shall be kept in proximity of the instru-

Qualification,

Training

associated with instrument operation and provide important safety practices designed to minimize these risks.

If you carefully follow the information contained in this section, you can protect yourself from hazards and create a safer work environment.

More safety instructions are given throughout this manual, at the respective locations where observation is most important.

Strictly follow all safety instructions in this publication.

Operator: Qualified person who uses the equipment for its intended purpose.

Instrument operation requires thorough knowledge of applications, instrument functions and software program as well as all applicable safety rules and regulations.

ment.

To be qualified for instrument installation and operation, you must:

 read and understand the instructions in this manual as well as

the Material Safety Data Sheets.

 know the relevant safety rules and regulations.

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AMI Hydrazine

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

The importance of the mandatory signs in this manual.

Safety goggles

Safety gloves

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AMI Hydrazine

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

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AMI Hydrazine

Safety Instructions

1.2. General Safety Regulations

Legal

Requirements

Spare Parts

and

Disposables

Modifications Modifications and instrument upgrades shall only be carried out by

The user is responsible for proper system operation. All precautions must be followed to ensure safe operation of the instrument.

Use only official SWAN spare parts and disposables. If other parts are used during the normal warranty period, the manufacturer’s warranty is voided.

an authorized Service Technician. SWAN will not accept responsibility for any claim resulting from unauthorized modification or alteration.

WARNING

Electrical Shock Hazard

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.

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AMI Hydrazine

Safety Instructions

1.3. Restrictions for use

Alcalizing

Reagent

Sample

Require-

ments

Flow

Interruption

Correct the pH of the sample with Diisopropylamine only, however, Diisopropylamine is not included in delivery. Please buy it from your local supplier: E.g. VWR 6x 1l: 8.03646.1000, or SIGMA 38290-1L-F.

No sand (or other polishing material) or oil are allowed in the sample. The instrument is specified for a max. pressure of 2 bar (28 psi). If the sample pressure exceeds 2 bar, please mount a pressure reduction in front of the instrument inlet. Phosphates may interfere with the hydrazine measurement.

The pH value of the sample must be equal or higher than pH 7.

High concentrations of Diisopropylamine reagent may attack the acrylic material of the flow cell. This can cause cracks and render the flow cell completely unusable. This will not happen during normal operation. However, if the sample flow is stopped, undiluted diisoproylamine will diffuse through the diffusion tube and can cause damage. Therefore, the following rules should be observed if the sample flow is stopped for more than one day:

Remove diisopropylamine bottle and close it. Keep it in a safe place for further use.

WARNING

Diisopropylamine is corrosive.

 Read the Safety Data Sheets (SDS) first.  Wear suitable protective clothing, gloves and eye/face protec-

tion.

 Avoid inhalation of DIPA vapor.  In case of contact with eyes, rinse immediately with plenty of

water eyelid wide open for at least 10 min, summon medical advice. In case of accident or if you feel unwell, summon medical advice immediately (show the label where possible).

 Screw an empty reagent bottle on the holder.  Let the sample flow for another 30 minutes to rinse out the Di-

isopropylamine dissolved in the diffusion tubing material.

 Stop sample flow.

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AMI Hydrazine

Product Description

2. Product Description

2.1. Description of the System

Microprocessor controlled system for the determination and control of hydrazine or carbohydrazide used as boiler feedwater oxygen scavengers.

Application Hydrazine is used in power plants as an oxygen scavenger. It helps

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)

to remove oxygen, which may cause corrosion in the power plant. The reaction of hydrazine with oxygen produces nitrogen and water.

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  Third signal output with the same specifications as option. (Only possible if no communication interface is used.)

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. Programmable as HOLD or OFF function.

 HyperTerminal Interface (RS232) for logger download.  USB Interface for logger download.  Profibus/Modbus interface (RS485) with Fieldbus protocol.

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AMI Hydrazine

Product Description

Safety

Features

Reagent

consumption

Measuring

principle

Fluidics The measurement of hydrazine requires a high pH of the sample.

No data loss after power failure. All data is saved in non-volatile memory. Over voltage protection of in- and outputs. Galvanic separation of measuring inputs and signal outputs. The analyzer is factory tested and ready for installation and operation.

Reagent consumption (at 25°C): < 1L diisopropylamine per month

3-electrode amperometry: The sensor consists of two platinum electrodes and a reference

electrode. A voltage is applied to the platinum electrodes and kept on a optimum level by the reference electrode. The hydrazine in the sample generates a small current on the platine pin electrode, which is proportional to the hydrazine concentration.

For an optimal sensitivity and stability, a rotor continuously cleans the surfaces of the platinum electrodes (hydrodynamic cleaning). To ensure a sufficient sample flow, a Hall-Sensor detects the rotations of the rotor. If the rotation speed falls below a certain value, a flow Alarm is triggered. The signal of amperometric systems depends on flow rate. The constant head guarantees a constant flow if the sample always overflows into the longer constant head tube.

Temperature compensation is done automatically.

The AMI Hydrazine buffers the pH to pH>10.5 by adding diisopropylamine. The diisopropylamine is dissolved in the water while flowing through a diffusion tube. The sample enters at the sample inlet [E], passes the filter [G] and the flow regulating valve [D], where the sample flow can be adjusted. From there it flows through the diffusion tube [L] in the diisopropylamine bottle [K], picking up diisopropylamine and reaching pH>10.5. Afterwards, the sample is led directly into the shorter overflow tube [C]. From there it flows through the hydrazine sensor [F] and leaves the flow cell via sample outlet [H]. Excess sample overflows from the shorter overflow tube into the constant head [A], fills it until the sample overflows into the longer overflow tube. Sample must always overflow into the longer overflow tube to ensure constant flow and pressure at the hydrazine sensor. The sample leaves the flow cell via sample outlet [H].

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AMI Hydrazine

Product Description

Constant head

Overflow tube to waste (long)

Overflow tube to sensor (short)

Flow regulating valve

Sample inlet

Hydrazine sensor

Filter vessel

Sample outlet

Garb sample outlet

Grab sample valve

Diisopropylamine

Diffusions tube

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AMI Hydrazine

Product Description

2.2. Instrument Specification

Power Supply Voltage:

Power consumption:

Electronics Aluminium with a protection degree of IP 66 / NEMA 4X

housing Ambient temperature:

Limit range of operation: Storage and transport: Humidity: Display:

Measuring

range

Hydrazine

Measuring

range

temperature

Sample

requirements

On-site The analyzer site must permit connections to:

requirements Sample inlet:

Range: Accuracy:

Stability:

Response time:

Measuring range: Resolution:

Flow rate: Temperature: Sample inlet pressure: Sample outlet pressure: pH value:

Sample outlet: Max. Altitude: 2000 m above sea level

100–240 VAC (± 10%) 50/60 Hz (± 5%) or 24 VDC (± 10%) max. 30 VA

-10 to +50 °C

-25 to +65 °C

-30 to +85 °C 10–90% rel., non condensing backlit LCD, 75 x 45 mm

0.1–600 ppb 5% of reading up to 200 ppb ± 15% up to 600 ppb or ± 2 ppb (whichever is greater). ±5% of reading per month, or ±2ppb per month 90% of change in 60 sec after the sample entered the flow cell.

up to 60°C

0.1 °C

approx. 15 l/h 15 to 45 °C

0.15–2 bar pressure free equal or higher than pH 7.0

Serto 4x6 mm Tube adapter 15x 20 mm

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AMI Hydrazine

Product Description

Dimensions Panel:

Mounting hole distance Screws: Weight:

280 mm/ 11”

254 mm/ 10”

AMI Hydrazine

280x850x180 mm, stainless steel 254x824 8 mm diameter

12.0 kg

13 mm / ½”

4 x dia. 8 mm / ¼”

”

850 mm / 33½”

824 mm / 32

12 A-96.250.501 / 280915

AMI Hydrazine

G H

Product Description

2.3. Instrument Overview

A-96.250.501 / 280915 13

Panel

Transmitter

Bottle holder

Diisoproylamine bottle

Diffusion tube

Reference electrode

Grab sample valve

Grab sample outlet

Flow regulating valve

Hydrazine sensor

Filter vessel

Sample outlet

Sample inlet

Hall sensor (not visible)

Flow cell block

Constant head

Overflow tube to sensor (short)

Overflow tube to waste (long)

Constant head cover

Temperature sensor

AMI Hydrazine

Installation

3. Installation

3.1. Installation Checklist Monitors

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 Mounting of Instrument Panel, p. 15.

Electrodes Install the Reference Electrode, p. 16.

Diisopropylamine

Electrical wiring

Power-up Establish Sample Flow, p. 29.

Instrument set-up

Run-in period Let the instrument run-in for approximately 30 min continuous

100– 240 VAC ( 10%), 50/60 Hz ( 5%) or 24 VDC (±10%), isolated power outlet with ground connection and 30 VA. Sample line with sufficient sample flow and pressure (see Instru-

ment Specification, p. 11).

Connecting Sample and Waste, p. 15.

Install the Temperature Sensor, p. 17.

Install the Diisopropylamine Bottle, p. 28.

Note: Do not switch on the Instrument until all electrical connections are made.

 Connect all external devices like limit switches, current loops

and pumps, see Connection Diagram, p. 20.

 Connect the power cord, see Power Supply, p. 21

Switch on power. Adjust sample flow according to flow cell specifications.

Program all necessary parameters see Programming, p. 29.  Program all parameters for external devices (interface,

recorders, etc.).

 Program all parameters for instrument operation (limits,

alarms).

operation. See Run in period, p. 29.

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AMI Hydrazine

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.  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 8 x60 mm – 4 Dowels – 4 Washers 8.4/24 mm

Mounting re-

quirements

3.3. Connecting Sample and Waste

Sample inlet Slide the knurled nut [C] and the compression ferrule [B] over the

Waste Connect the 1/2” tube [F] to the hose nozzle [D] and place it into a

The instrument is only intended for indoor installation.

Instrument Specification, p. 11

4x6 plastic tube [E]. Push it into the serto fitting [A] and tighten the knurled nut.

pressure free drain.

Serto fitting at sample inlet

Compression ferrule

Knurled nut

Hose nozzle at sample outlet

Plastic tube 4x6

1/2” tube

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AMI Hydrazine

D E

Installation

3.4. Install the Reference Electrode

The reference electrode is delivered separately and protected with a waterfilled protective cap. The connector is fixed to the panel with an adhesive tape and already connected to the front end PCB in the AMI transmitter.

Connector

Protective cap

Reference sensor

To install the reference electrode proceed as follows:

1 Loosen the union nut [D].

2 Remove the protective cap [B] from the reference electrode [C].

3 Push the reference electrode through the union nut [D] into the

bore of the flow cell block [E] as far as it will go.

4 Tighten the union nut.

5 Remove the connector [A] from the panel and screw it onto the

reference electrode.

DEUnion nut

Flow cell block

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AMI Hydrazine

Installation

3.5. Install the Temperature Sensor

The temperature sensor is fixed to the panel with an adhesive tape and already connected to the front end PCB in the AMI transmitter.

Temperature sensor

Constant head cover

Constant head

To install the temperature sensor proceed as follows:

1 Remove the temperature sensor [A] from the panel.

2 Put the temperature sensor in the designated hole of the con-

stant head cover [B].

3 Push it into the hole as far as it will go.

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AMI Hydrazine

Installation

3.6. Electrical Connections

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

 Make sure the power specification of the instrument corre-

Cable

thicknesses

In order to comply with IP66, use the following cable thicknesses

an power outlet which has a ground connection.

sponds to the power on site.

ABC

PG 11 cable gland: cable Ø

PG 7 cable gland: cable Ø

PG 9 cable gland: cable Ø

Note: 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

stranded wire with end sleeves.

outer

3–6.5 mm

outer

4–8 mm

outer

5–10 mm

/ AWG 14

/ AWG 23

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AMI Hydrazine

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-

WARNING

To prevent from electrical shock, do not connect the instrument to the power unless the groundwire (PE) is connected.

 Do not connect unless specifically instructed to do so.

WARNING

tacts are disconnected from the power before resuming installation.

– relay 1 – relay 2 – alarm relay

The mains of the AMI Transmitter must be secured by a main switch and appropriate fuse or circuit breaker.

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AMI Hydrazine

Installation

3.6.1 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.

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AMI Hydrazine

Installation

3.6.2 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.

Power supply connector

Neutral conductor, Terminal 2

Phase conductor, Terminal 1

Protective earth PE

Note: The protective earth wire (Ground) has to be connected to the grounding terminal.

Installation

requirements

A-96.250.501 / 280915 21

The installation must meet the following requirements.

 Mains 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 Hydrazine

AMI Hydrazine

Installation

3.7. Relay Contacts

Programming of the relay contacts see 5.3 Relay Contacts, p. 69

3.7.1 Input

Note: Use only potential-free (dry) contacts.

• Terminals 16/42

If signal output is set to hold, measurement is interrupted if input is active.

For programming see menu 5.3.4, p. 75

3.7.2 Alarm Relay

Note: Max. load 1 AT / 250 VAC

Alarm output for system errors. Error codes see Troubleshooting, p. 51 Programming see menu 5.3.1, p. 69

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.

Ter min als Description Relay connection

Normally Closed

10/11 Active (opened) during normal

operation. Inactive (closed) on error and loss of power.

Normally Open

12/11 Active (closed) during normal

operation. Inactive (opened) on error and loss of power.

1) usual use

22 A-96.250.501 / 280915

AMI Hydrazine

Installation

3.7.3 Relay Contacts 1 and 2

Note: Rated load 1 AT / 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 Relay as normally closed, set the jumper in the upper position.

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

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 programming see Menu Installation 5.3.2 and 5.3.3, p. 71

A-96.250.501 / 280915 23

AMI Hydrazine

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 is not necessary if an AMI relaybox is used.

AC or DC power supply

AMI Transmitter

External power relay

Snubber

Power relay coil

pumps and so on can be connected without further measures

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.

AMI Transmitter

PLC or controlled pulse pump

Logic

AC or DC power supply

AMI Transmitter

Actuator

24 A-96.250.501 / 280915

AMI Hydrazine

Installation

3.8. Signal Outputs

3.8.1 Signal Output 1 and 2 (current outputs)

Note: Max. burden 510  If signals are sent to two different receivers, use signal isolator (loop isolator).

Signal output 1: Terminals 14 (+) and 13 (-) Signal output 2: Terminals 15 (+) and 13 (-)

For programming see Chapter 9, 5.2 Signal Outputs, p. 65, Menu Installation

3.9. Interface Options

AMI Transmitter

Slot for interfaces

Frontend PCB

Screw terminals

The slot for interfaces can be used to expand the functionality of the AMI instrument with either:

 an additional signal output  a Profbus or Modbus interface  a Hyperterminal interface  an USB Interface

A-96.250.501 / 280915 25

AMI Hydrazine

Installation

3.9.1 Signal Output 3

Requires the additional board for the third signal output 0/4 – 20 mA PCB

Note: Max. burden 510 .

Terminal 38 (+) and 37 (-). .

A Third signal output 0/4 - 20 mA PCB installed on main board

3.9.2 Hyperterminal Interface

Terminal 50, 52, 53 The AMI hyperterminal Interface (RS232) PCB is used for Logger

down load and Firmware up load. For detailed information see the corresponding manual “AMI RS232 Interface”.

Hyperterminal Interface PCB

26 A-96.250.501 / 280915

AMI Hydrazine

Installation

3.9.3 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 or a MODBUS connection, consult the PROFIBUS/MODBUS manual. Use appropriate network cable.

Note: The switch must be ON, if only one instrument is installed, or on the last instrument in the bus.

Profibus, Modbus Interface PCB (RS 485)

A On - OFF switch

OFF

81.420.020

Profibus

PB-DPV1 V5.5

3.9.4 USB Interface

The USB Interface is used to store Logger data and for Firmware up load. For detailed information see the corresponding installation instruction.

USB Interface

A-96.250.501 / 280915 27

AMI Hydrazine

A B

D E

Instrument Setup

4. Instrument Setup

4.1. Install the Diisopropylamine Bottle

Only install the diisopropylamine bottle if you intend to start operation immediately. Do not it install if no sample in available!

Fill the Diisopropylamine into the glass bottle (G45 thread), delivered with the instrument. If you want to connect a Merck bottle directly, you need a thread adapter which can be ordered at SWAN, order number C-83.591.010.

WARNING

Diisopropylamine is corrosive.

 Read the Safety Data Sheets (SDS) first.  Wear suitable protective clothing, gloves and eye/face pro-

 Avoid inhalation of DIPA vapor. To prevent formation of re-

 In case of contact with eyes, rinse immediately with plenty of

tection.

agent vapors: – close the reagent bottle firmly – check the EPDM seal regularly

water eyelid wide open for at least 10 min, summon medical advice. In case of accident or if you feel unwell, summon medical advice immediately (show the label where possible).

Bottle holder

Screw cover G 45

EPDM seal mounted on the bottle holder

Reagent bottle

Steel tube

Diffusions tube

28 A-96.250.501 / 280915

AMI Hydrazine

Instrument Setup

1 Fill roughly 750 ml high purity water into a 1 l beaker.

2 Dip the diffusion tube [F] into the beaker filled with high purity

water and rinse it some seconds.

3 Push the diffusion tube over the steel tubes [E].

4 Open the reagent bottle [D], add 20 ml of high purity water.

5 Screw the reagent bottle into the screw cover [B], fixed to the

bottle holder [A]

6 Make sure that the diffusions tube [F] is placed in the reagent

bottle as shown in the picture above.

7 Tighten the screw cover well.

4.2. Establish Sample Flow

1 Make sure, that the grab sample valve is closed.

2 Open the flow regulating valve.

3 Wait until the flow cell is completely filled.

4 Switch on power.

4.3. Programming

Program all parameters for external devices (interface, recorders, etc.). Program all parameters for instrument operation (limits, alarms). See Program Overview, p. 56, for explanations, see Pro-

gram List and Explanations, p. 61.

4.4. Run in period

Let the instrument run-in for approximately 30 min continuous operation (flow on, power on). The Diisopropylamine needs roughly 30 min to penetrate the walls of new diffusion tubes.

A-96.250.501 / 280915 29

AMI Hydrazine

Instrument Setup

4.5. Correction of Hydrazine Sensor

If necessary, correct the instrument after at least 30 min running-in. To correct the instrument the concentration of hydrazine in the sample has to be known. Hydrazine reacts with dimethylaminobenzaldehyde in an acid solution and forms a yellow color. The color intensity can be measured by a photometer. Refer to an appropriate standard method (e.g. DIN 38413).

The manual sample must be taken from the grab sample outlet of the flow cell. Let the sample flow out for roughly 1 minute before grabbing the sample for the manual analysis.

See Calibration of Hydrazine Sensor, p. 46.

30 A-96.250.501 / 280915

AMI Hydrazine

25.4°C

RUN

9 l/h

14:10:45

0.45 ppm

Installation

Operation

Diagnostics

Messages

Maintenance

Main Menu

Enter

Exit

Operation

5. Operation

5.1. Keys

BCDA

Program

Access, Exit

Exit

A to exit a menu or command (rejecting any changes)

to move back to the previous menu level

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

to accept an entry

Enter

A-96.250.501 / 280915 31

AMI Hydrazine

Operation

5.2. Display

RUN

0.45

360 rpm 24.8°C

15:20:18

ppb

RUN normal operation

HOLD input closed or cal delay: Instrument on hold (shows

status of signal outputs).

OFF input closed: control/limit is interrupted (shows status

ERROR Error

Keys locked, transmitter control via Profibus

Time

Process values

Sample temperature

Sample flow

Relay status

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 motor valve: open, dark bar indicates approx. position timer timer: timing active (hand rotating)

32 A-96.250.501 / 280915

AMI Hydrazine

Messages

Operation

Maintenance

Diagnostics

Main Menu

Installation

1.1

Pending Errors

Messages

Message List

2.1

Interface

I/O State

Sample

Identification Sensors

Diagnostics

3.1

Calibration

Maintenance

Set Time 23.09.06 16:30:00

Simulation

4.1

Logger

Relay Contacts

Sensors

Operation

5.1

Interface

Miscellaneous

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.

A-96.250.501 / 280915 33

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.

AMI Hydrazine

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

Save ?

Yes

5.3.1.1.1

Alarm High 10.0 ppm

Alarm Hydrazine

Alarm Low 0.000 ppm Hysteresis 10.0 ppm Delay 5 Sec

5.3.1.1.1

Alarm Hydrazine

Alarm Low 0.000 ppm Hysteresis 10.0 ppm Delay 5 Sec

Alarm High 6.00 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.

34 A-96.250.501 / 280915

6 Press [Enter] to save the new val-

ue.

AMI Hydrazine

Maintenance

6. Maintenance

6.1. Maintenance Table

Weekly Check sample supply for dirt.

Monthly Exchange Diisopropylamine bottle if there is

Half-yearly Replace sealing of reagent bottle (EPDM)

Yearly Exchange diffusion tube, see Changing the

Check sample flow. Perform a process calibration, see Process

Hydrazine, p. 47.

less than 150 ml (half of the diffusion tube has to be covered with Diisopropylamine), see Changing Diisopropylamine Bottle, p. 44.

Diffusion Tube, p. 45.

A-96.250.501 / 280915 35

AMI Hydrazine

Maintenance

6.2. Stop of Operation for Maintenance

WARNING

Electrical shock hazard!

Do not carry out maintenance work during normal operation.  Always turn off power before manipulating electric parts.

WARNING

Diisopropylamine is corrosive.

 Read the Safety Data Sheets (SDS) first.  Wear suitable protective clothing, gloves and eye/face pro-

 Avoid inhalation of DIPA vapor.  In case of contact with eyes, rinse immediately with plenty of

tection.

water eyelid wide open for at least 10 min, summon medical advice. In case of accident or if you feel unwell, summon medical advice immediately (show the label where possible).

1 Wear safety gloves and safety glasses!

2 Remove the diisopropylamine bottle and close it well.

3 Screw an empty bottle on the holder. Let the sample run for 30

min.

4 Stop sample flow by closing the flow regulating valve.

5 Wait until the rotor stops and hydrazine reading is 0 ppb.

6 Shut off power of the instrument.

7 Empty the constant head by opening the grab sample tap.

36 A-96.250.501 / 280915

AMI Hydrazine

Maintenance

6.3. Cleaning of protective filter

Flow regulating valve

Filter

Filter vessel

If the protection filter shows deposits, proceed as follows:

1 Close the flow regulating valve [A].

A-96.250.501 / 280915 37

2 Close the sample main tap before the filter.

3 Unscrew and remove the filter vessel [C] from the flow cell

block.

4 Unscrew and remove the filter from [B] the flow cell block.

5 Backwash the filter under pressure of tap water. Clean the out-

side of the filter.

6 Install the filter and filter vessel again.

7 Open sample supply and flow regulating valve again.

AMI Hydrazine

Maintenance

6.4. Cleaning of Hydrazine sensor

Flow regulating valve

Threaded bolt

Rotor

O-Ring

38 A-96.250.501 / 280915

1 Close the flow regulating vale [A].

2 Wait until rotor [C] stops and hydrazine reading is 0 ppm.

3 Shut off power of the instrument.

4 Disconnect the BNC connector [G] from the hydrazine sensor

[F].

Prevent it from getting wet.

5 Unscrew and remove one of the two knurled nuts [H].

Orifices

Hydrazine sensor

BNC connector

Knurled nut

AMI Hydrazine

Maintenance

CAUTION

 Avoid damaging of the

Once damaged, the sensor needs to be replaced.

 Do not touch the platinum ring in the center of the

sensor with your fingers or metallic objects.

6 Hold the

and removing the 2

7 Remove the

Cleaning 1 Remove the rotor [C] from the

2 Clean the tow orifices [E] with a pipe cleaner or a toothpick

3 Clean the rotor with a soft tissue.

4 Cautiously wipe the sensor with a soft tissue, mainly the plati-

num parts and the whole area which is in contact with water.

5 After cleaning rinse all parts well with clean water.

Install 1 Put rotor on the sensor.

2 Install the sensor into the flow cell.

3 Fasten the knurled nuts hand-tight.

4 Connect the BNC connector to the

5 Open the sample flow.

6 As soon as the rotor is turning, switch on power.

hydrazine

Take care not to spill the sample remaining in the sensor.

hydrazine

sensor [F] with one hand while unscrewing

knurled nut.

sensor from the flow cell.

sensor during removal.

hydrazine

sensor.

hydrazine

sensor.

hydrazine

Note: After cleaning the sensor, the measuring value may be too high. Let the instrument run for about 24 h.

A-96.250.501 / 280915 39

AMI Hydrazine

C D

Maintenance

6.5. Cleaning of Reference Electrode

ABReference electrode

Union screw

1 Close the flow regulating vale.

2 Loosen the union screw [B].

3 Pull the reference electrode out.

4 Wipe sensor tip cautiously with a soft tissue. If necessary use

alcohol to remove oily deposits.

Do not use any acid!

5 Push the reference electrode through the union screw into the

flow cell as far as it will go.

6 Tighten the union screw.

EFWasher

O-Ring

40 A-96.250.501 / 280915

AMI Hydrazine

B C

E F

J K

M N

P Q

Maintenance

6.6. Cleaning of Flow Cell

Temperature senor

Tube from sample inlet

Tube to hydrazine sensor

Constant head cover

Constant head tube

Constant head tube fixation

Overflow tube to waste

Overflow tube to sensor

Flow cell block

Grab sample tap

Fixing screw

Flow regulating valve

Sample Inlet

Hall sensor

Filter

Filter vessel

Hydrazine sensor

Sample outlet

CAUTION

 Never use organic solvents or scrubbing materials to clean

acrylic glass parts.

 Use soft detergent and rinse well. Eliminate calcareous de-

posits with a common household deliming agent in standard concentration.

A-96.250.501 / 280915 41

AMI Hydrazine

Maintenance

Disassemble

the flow cell

1 Switch off the instrument.

2 Stop the sample flow at the main tap before the sample inlet.

3 Open the grab sample tap [J] to empty the flow cell.

4 Remove all sensors, see Cleaning of Hydrazine sensor, p. 38,

Cleaning of Reference Electrode, p. 40 and temperature sen-

sor.

5 Put the rubber cap on the tip of the reference electrode and

plug cap on sensor plug.

6 Remove the following parts from the flow cell block [I], but with-

out however removing the flow cell block from the panel:

– Tube from sample inlet to DIPA bottle [B] – Tube from DIPA bottle to hydrazine sensor [C] – Constant head cover [D] – Constant head tube [E] – Overflow tube to waste (long) [G] – Overflow tube to sensor (short) [H] – Grab sample tap [J] – Sample inlet [M] and grab sample outlet (not visible) – Filter vessel [P] – Filter [O] – Sample outlet [R] – Hall-Effect sensor [N] – Flow regulating valve [L]

7 Clean all acrylic parts with a soft brush (e.g. a bottle cleaner)

and soapy water. Remove calcareous deposits with a common household deliming agent with standard concentrations.

8 Clean the bores of the flow cell block with pipe cleaners.

42 A-96.250.501 / 280915

AMI Hydrazine

Maintenance

Assemble the

flow cell

Teflon band

Hose nozzle at sample outlet

Serto fitting at sample inlet and grab sample outlet

1 Wrap 7 turns of teflon tape around the hose nozzle thread

2 Replace all o-rings and grease them with teflon paste.

3 Assemble the flow cell.

4 Install all sensors.

5 Open the main tap and wait until the flow cell is filled

6 Check all connection for leakage, if necessary retighten leaky

points.

7 Switch on the instrument.

A-96.250.501 / 280915 43

AMI Hydrazine

A B

D E

Maintenance

6.7. Changing Diisopropylamine Bottle

Shut down the instrument as described in Stop of Operation for

Maintenance, p. 36.

Consider the Warning concerning Diisopropylamine handling.

1 Fill roughly 750 ml high purity water into a 1 l beaker.

2 Unscrew and remove the almost empty reagent bottle [D].

3 Close the

4 Check the EPDM seal [C] for cracks an replace it if necessary.

5 Remove the diffusion tube [F] from the steel tubes [E].

6 Dip the diffusion tube into the beaker filled with high purity wa-

ter. Rinse some seconds.

7 Push the diffusion tube over the steel tubes.

8 Open the new

Note: If you fill up Diisopropylamine into the almost empty bottle, no high purity water needs to be added.

9 Slide the

it lies pretzel-shaped in the

10 Fasten bottle to the bottle holder.

11 The liquid in the almost empty Diisopropylamine bottle must be

disposed as chemical waste.

reagent

bottle immediately.

bottle and add 20 ml of high purity water.

bottle over the diffusions tube and ensure that

reagent

bottle.

Bottle holder

Screw cover G 45

EPDM seal mounted on the bottle holder

Reagent bottle

Steel tube

Diffusions tube

44 A-96.250.501 / 280915

AMI Hydrazine

Maintenance

6.8. Changing the Diffusion Tube

Shut down the instrument as described in Stop of Operation for

Maintenance, p. 36.

Consider the Warning concerning Diisopropylamine handling.

1 Fill roughly 750 ml high purity water into a 1 l bea-

ker.

2 Unscrew and remove Diisopropylamine bottle

from the holder.

3 Close the bottle immediately.

4 Remove the old diffusion tube from the steel

tubes.

5 Dip the new diffusion tube into the beaker filled

with high purity water and rinse it some seconds.

6 Push the new diffusion tube over the steel tubes.

7 Open the

sions tube.

Note: Ensure that the diffusions tube lies pretzelshaped in the reagent bottle as shown in the picture.

8 Screw the bottle into the holder.

reagent

bottle and slide it over the diffu-

The correct measuring value will appear after 30 min of continuous operation (flow and power on). Diisopropylamine needs roughly 30 min to penetrate the walls of the new diffusion tube.

A-96.250.501 / 280915 45

AMI Hydrazine

Maintenance

6.9. Calibration of Hydrazine Sensor

6.9.1 Calibration Procedure

Manual

Measurement

Correction The adjustment of the slope is called correction. The zero remains

6.9.2 Zero Hydrazine

Hydrazine reacts with dimethylaminobenzaldehyde in an acid solution and forms a yellow colour. The colour intensity is proportional to the concentration and can be determined by a photometer. Refer to an appropriate standard method.

unchanged.

A zero point calibration is not necessary. If your quality procedure specifies a zero point calibration, please proceed as described below:

Note: Let the instrument run continuously for at least 5 days in normal operation before doing a zero point calibration!

1 Navigate to menu <Maintenance>/<Calibration>/<Zero Hydra-

zine>.

2 Press [Enter].

3 Follow the instructions on the screen.

During a zero calibration, the sample flow is turned off and the residual hydrazine in the small water volume around the sensor is consumed within 15–20 min. 0 ppb remains and after 30 min, a zero calibration is performed.

Current value / offset (Progress of zero cal. is shown). Wait until finished.

Open tap of the water inlet and regulate the sample flow.

46 A-96.250.501 / 280915

AMI Hydrazine

3.1

Calibration Simulation

Maintenance

Set Time 01.01.05 16:30:00

Calibration

3.1.1

Calibration

Zero Hydrazine

Process Hydrazine

Maintenance

6.9.3 Process Hydrazine

The sample must always overflow into the longer overflow tube of the constant head. Only perform process calibration if the difference is significant.

Grab sample Take a grab sample directly from the flow cell. Open the grab sam-

ple valve and drain water for a minute before taking the sample. Observe the displayed value of the AMI Hydrazine while taking the grab sample. The measuring value has to be stable. Determine the hydrazine concentration of the sample by manual analysis. Compare the result with the measuring value of the AMI Hydrazine.

If the measuring value of the AMI Hydrazine has changed while performing the manual analysis, enter the difference between the measuring values of the AMI Hydrazine.

Example Displayed measuring value of AMI Hydrazine during grab sample:

10 ppb Displayed measuring value of AMI Hydrazine after concentration

determination: 15 ppb. Determined hydrazine concentration: 8 ppb There is a change of the measurement value of 50% during the

concentration determination. This means, you have to correct the determined hydrazine concentration also with a factor of 50%.

This will result in a value of 8 ppb + (50% of 8 ppb) = 12 ppb Finally, you have to enter 12 ppb as a process value at the AMI

transmitter

Example of

Process

Calibration

1 Navigate to menu

<Maintenance>/<Calibration>.

2 Press [Enter]

A-96.250.501 / 280915 47

1 Select Process Hydrazine

2 Press [Enter]

AMI Hydrazine

Process Hydrazine

Raw value x µA

Save <Enter>

Process Value 18.80 ppm

3.1.4.1

Current Value 18.80 ppb

Process Hydrazine

Current Value 18.8 ppb Raw value x nA

Save <Enter>

Process Value 24.0 ppb

3.1.2.5

3.1.4.1

Process Hydrazine

Current Value 18.80 ppb Raw value x µA

Process Value 24.0 ppb

Save <Enter>

3.1.4.1

Process Hydrazine

Current Value 15 ppb Raw value x µA

Calibration successful

Maintenance

The following values are displayed:

 Current value  Raw value  Process value

Current value and Process value are equal.

3 Press [Enter]. 4 Enter the calculated value.



Use the [] or [] keys to increase or decrease the Process value.

5 Press [Enter] to save.

During calibration, control is interrupted. The signal outputs are frozen if hold after calibration has been programmed (menu 4.3.4.2). Otherwise the outputs track the measuring value. Hold after calibration is indicated by Hold in the display.

Possible error message see Troubleshooting, p. 51.

48 A-96.250.501 / 280915

AMI Hydrazine

ABCDEF

Maintenance

6.10. 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 con-

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.

tacts are disconnected from the power before resuming installation.

– relay 1 – relay 2 – alarm relay

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

A-96.250.501 / 280915 49

AMI Hydrazine

Maintenance

6.11. Longer Stop of Operation

Do not switch off the instrument if your operation is suspended for less than a week. Power consumption is very low, and the sensors remain ready for use.

Shut-down the instrument as described in chapter Stop of Opera-

tion for Maintenance, p. 36.

Consider the Warning concerning Diisopropylamine handling.

Then:

1 Remove the Diisopropylamine bottle from the bottle holder and

close it well.

2 Remove the diffusion tube from the steel tubes and dip it into a

beaker filled with high purity water. Rinse it some seconds.

3 Unscrew and remove the filter vessel from the flow cell block,

empty and dry it, then screw it onto the flow cell block again.

4 Loosen the connector from the reference electrode and put the

connector cap on the electrode plug.

5 Remove the reference electrode from the flow cell block, fill wa-

ter in the protective cap and put the protective cap on the electrode tip.

6 Store it dry and frost protected with tip pointing downwards.

7 Remove the BNC connector from the hydrazine sensor.

8 Hold the hydrazine sensor with one hand while unscrewing and

removing the 2

9 Remove the hydrazine sensor from the flow cell.

10 Dry it with a soft, clean tissue, and store dry.

Do not spill water on connector.

knurled nut.

50 A-96.250.501 / 280915

AMI Hydrazine

Troubleshooting

7. Troubleshooting

This chapter provides some hints to make troubleshooting easier. For any detailed information how to handle or clean parts please see

Maintenance, p. 35

instrument please see

Process

calibration

Possible error message

 Current value too low or no sample flow.  Offset Error  Slope Error

Current value too low or no sample flow:

Possible cause Corrective action

The ppb value of the sample is too low, thereby, the current difference to zero is too small.

Low sample flow resulting in no signal difference to zero.

Hydrazine sensor contaminated Sensor does not provide enough current for the value measured with the manual analysis.

. For any detailed information how to program the

Program List and Explanations, p. 61

 Process value used for

calibration should be higher.

 Check the diagnostic value of

the zero point. Check sample inlet pressure, if necessary readjust sample flow

to min. 170 rpm. Clean sensor, see Cleaning of

Hydrazine sensor, p. 38.

In case of repeated sensor contamination, check for water treatment chemicals such as phosphates.

Offset Error:

Possible cause Corrective action

Run-in time of sensor to short.

Zero point calibration was too short.

A-96.250.501 / 280915 51

Let the sensor run-in at least 30 min

Repeat the zero point calibration

AMI Hydrazine

Troubleshooting

Slope Error:

Possible cause Corrective action

Diisopropylamine bottle empty

Insufficient immersion depth of the diffusion tube. Orifices at sensor inlet clogged Run-in time of diffusions tube too short Too much water in the Diisopropylamine bottle.

Sample flow too high. Readjust the sample flow to min. 170 rpm Sample flow too low Sample flow must not be smaller than

Exchange Diisopropylamine bottle, see

Changing Diisopropylamine Bottle, p. 44

or Install the Diisopropylamine Bottle, p.

28.

Place the diffusion Tube correct, see

Changing the Diffusion Tube, p. 45.

Clean the senor, see Cleaning of Hydra-

zine sensor, p. 38.

After replacing the diffusions tube let the instrument run in at least 30 min Check diffusion tube for leakage and replace it if necessary, see Changing the

Diffusion Tube, p. 45.

Install a new DIPA-bottle, see Install the

Diisopropylamine Bottle, p. 28.

170 rpm. Readjust sample flow to min. 170 rpm.

Reference

electrode

Diagnostic

values

The reference electrode may be old or damaged. Under the following conditions the reference voltage should be:

In water < 10 ppb oxygen and about 70 ppb hydrazine: ~ 1300 mv In water with oxygen: ~ 400 mV CE (counter electrode) value: 200 – 400 mV

Lower values indicate coated hydrazine sensors.

Offset: The offset is approx. 50 nA An offset calibration is only necessary for Hydrazine values lower than 0.05 ppb. Running Time at least 24 hours.

Slope: The slope is approx. 55nA/ppb.

Note:

Observe the running in time. A decreasing slope value over several process calibrations indicates coating of sensor. Slope (and Zero) too high indicates usually too little running in time.

52 A-96.250.501 / 280915

AMI Hydrazine

23 °C

HOLD

80 rpm

14:10:45

0.5 ppbR2

Installation

Operation

Diagnostics

Messages

Maintenance

Main Menu

1.1

Maintenance List

Pending Errors

Messages

Message List

1.1.5

Pending Errors

Error Code E002

Alarm low

<Enter> to Acknowledge

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-

 Errors which indicate a hardware failure of the instrument.

covered (i.e. Sample Flow low).

Such Errors are marked E0xx (bold and orange)

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].

A-96.250.501 / 280915 53

Navigate to menu Pending Errors. Press [ENTER].

Press [ENTER] to acknowledge the Pending Errors. The Error is reset and saved in the Message List.

AMI Hydrazine

Troubleshooting

Error Description Corrective action

E001 Hyd. Alarm high

E002 Hyd. Alarm low

E007 Sample Temp. high

E008 Sample Temp. low

E009 Sample Flow high

E010 Sample Flow low

E011 Temp. shorted

E012 Temp. disconnected

E013 Case Temp. high

E014 Case Temp. low

– check process – check programmed value 5.3.1.1.1, p.

– check process – check programmed value 5.3.1.1.25, p.

– check process – check programmed value 5.3.1.3.1, p.

– check process – check programmed value 5.3.1.1.25, p.

– check Inlet pressure – readjust sample flow – check programmed value 5.3.1.2.2, p.

– check Inlet pressure – readjust sample flow – clean instrument – check programmed value 5.3.1.2.35, p.

– Check wiring of temperature sensor,

see Connection Diagram, p. 20.

– Check sensor

– Check wiring of temperature sensor,

see Connection Diagram, p. 20.

– Check sensor

– check case/environment temperature – check programmed value 5.3.1.4, p. 70

– check case/environment temperature – check programmed value 5.3.1.5, p. 70

54 A-96.250.501 / 280915

AMI Hydrazine

Troubleshooting

Error Description Corrective action

E015 Reference

E017 Control Timeout

E024 Input active

E025 IC MK41T56

E026 IC LM75

E027 IC PCF8574

E028 EEProm Microcon

E029 EEProm Motherboard

E030 EEProm Frontend

E031 Calibration Recout

E032 Wrong Frontend

E033 Power-on

E034 Power-down

– Check conductivity value of sample

(must be > 5 µS/cm)

– Check gain of hydrazine sensor. If too

small, clean hydrazine sensor.

– Exchange reference electrode.

– check control device or programming in

Installation, Relay contact, Relay 1/2 see 5.3.2 and 5.3.3, p. 71

– See If Fault Yes is programmed in

Menu see 5.3.4, p. 75

– call service

– none, normal status

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AMI Hydrazine

Program Overview

8. Program Overview

For explanations about each parameter of the menus see Program

List and Explanations, S. 61

 Menu 1 Messages is always accessible for everybody. No

 Menu 2 Diagnostics is always accessible for everybody. No

 Menu 3 Maintenance is for service: Calibration, simulation of

 Menu 4 Operation is for the user, allowing to set limits, alarm

 Menu 5 Installation: Defining assignment of all inputs and

8.1. Messages (Main Menu 1)

password protection. No settings can be modified.

outputs and set time/date. Please protect with password.

values, etc. The presetting is done in the menu Installation (only for the System engineer). Please protect with password.

outputs, measuring parameters, interface, passwords, etc. Menu for the system engineer. Password strongly recommended.

Pending Errors Pending Errors 1.1.5* * Menu numbers

1.1*

Message List Number 1.2.1*

1.2* Date, Time

56 A-96.250.501 / 280915

AMI Hydrazine

Program Overview

8.2. Diagnostics (Main Menu 2)

Identification Designation AMI Hydrazine * Menu numbers

2.1* Version V5.40-11/14

Factory Test Instrument 2.1.3.1*

2.1.3* Motherboard

Front End

Operating Time Years / Days / Hours / Minutes / Seconds 2.1.4.1*

2.1.4*

Sensors Hydrazine Sensor Current Value

2.2* 2.2.1* (Raw value)

Ref. voltage

Cal. History Number 2.2.1.5.1*

2.2.1.5* Date, Time

Offset

Slope

Miscellaneous Case Temp. 2.2.2.1*

2.2.2*

Sample Sample ID 2.3.1*

2.3* Temperature °C

Nt5K Ohm

Sample Flow

(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 RS232 or USB

interface)

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AMI Hydrazine

Program Overview

8.3. Maintenance (Main Menu 3)

Calibration Zero Hydrazine * Menu numbers

3.1* 3.1.1*

Process Hydrazine

3.1.2*

Simulation Alarm Relay 3.2.1*

3.2* Relay 1 3.2.2*

Relay 2 3.2.3*

Signal Output 1 3.2.4*

Signal Output 2 3.2.5*

Set Time (Date), (Time)

3.3*

8.4. Operation (Main Menu 4)

Sensors Filter Time Const. 4.1.1* * Menu numbers

4.1* Hold after Cal. 4.1.2*

Relay Contacts Alarm Relay Alarm Alarm High 4.2.1.1.1*

4.2* 4.2.1* 4.2.1.1* Alarm Low 4.2.1.1.26*

Hysteresis 4.2.1.1.36*

Delay 4.2.1.1.46*

Relay 1 and 2 Setpoint 4.2.x.100*

4.2.2* and 4.2.3* Hysteresis 4.2.x.200*

Delay 4.2.x.30*

Input Active 4.2.4.1*

4.2.4* Signal Outputs 4.2.4.2*

Output / Control 4.2.4.3*

Fault 4.2.4.4*

Delay 4.2.4.5*

Logger Log Interval 4.3.1*

4.3* Clear Logger 4.3.2*

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AMI Hydrazine

Program Overview

8.5. Installation (Main Menu 5)

Sensors Temp.comp 5.1.1* * Menu numbers

5.1*

Signal Outputs Signal Output 1 and 2 Parameter 5.2.1.1 - 5.2.2.1*

5.2* 5.2.1* and 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 Hydrazine Alarm High 5.3.1.1.1*

5.3* 5.3.1* 5.3.1.1* Alarm Low 5.3.1.1.26

Hysteresis 5.3.1.1.36

Delay 5.3.1.1.46

Sample Flow Flow Alarm 5.3.1.2.1

5.3.1.2* Alarm High 5.3.1.2.2*

Alarm Low 5.3.1.2.36*

Sample Temp. Alarm High 5.3.1.3.1*

5.3.1.3* Alarm Low 5.3.1.3.26*

Case Temp. high 5.3.1.4*

Case Temp. low 5.3.1.5*

Relay 1 and 2 Function 5.3.2.1–5.3.3.1*

5.3.2* - 5.3.3* Parameter 5.3.2.20–5.3.3.20*

Setpoint 5.3.2.300–5.3.3.301*

Hysteresis 5.3.2.400– 5.3.3.401*

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*

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AMI Hydrazine

Program Overview

Interface Protocol 5.5.1* (only with RS485,

5.5* Device Address 5.5.21* RS232 or USB

Baud Rate 5.5.31* interface)

Parity 5.5.41*

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AMI Hydrazine

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 Message List

1.2.1 Shows the error history: Error code, date / time of issue and status

2 Diagnostics

2.1 Identification

2.1.3 Factory Test: Test date of the Instrument and Motherboard.

2.1.4 Operating Time: Shows the operating time in Years, Days, Hours,

2.2 Sensors

2.2.1 Hydrazine Sensor:

edged). If an active error is acknowledged, he 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.

Desig.: Designation of the instrument. Ver sion: Firmware of instrument (e.g. V5.40-11/14)

Minutes and Seconds.

Current value: Actual measuring value in ppb

(Raw value) measuring value in nA

Ref. Voltage: Applied voltage at the counter electrode (CE) in mV

2.2.1.5 Cal. History: Shows the diagnostic values of the last calibrations of the hydrazine sensor. Only for diagnostic purpose.

Number: Calibration counter Date, Time: Date and time of calibration Offset: Zero point displacement from the reference position in nA Slope: Steepness of the straight line in nA

Max. 65 data records are memorized.

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AMI Hydrazine

Program List and Explanations

2.2.2 Miscellaneous:

2.2.2.1 Case Temp: Shows the actual temperature in °C inside the trans-

2.3 Sample

2.3.1 Sample ID: Shows the assigned sample identification. This

2.4 I/O State

2.4.1

mitter.

identification is defined by the user to identify the location of the sample

Temperature: Shows temperature in °C.

(Nt5K): Shows raw value of the temperature in 

Sample Flow: Shows the sample Flow in rpm

(Raw value) Shows the sample Flow in Hz

Shows actual status of all in- and outputs.

Alarm Relay: Relay 1 and 2: Input: Signal Output 1 and 2: Signal Output 3 (option):

Open or closed. Open or closed. Open or closed. Actual current in mA Actual current in mA

2.5 Interface

Only available if optional interface is installed. Review programmed communication settings.

62 A-96.250.501 / 280915

AMI Hydrazine

Program List and Explanations

3 Maintenance

3.1 Calibration

3.1.1 Zero Hydrazine

Zero calibration (0 ppb). See Zero Hydrazine, p. 46 for more details.

3.1.2 Process Hydrazine

For a process calibration of the hydrazine sensor follow the instructions on the screen. Save the value with the [Enter] key. See Pro-

cess Hydrazine, p. 47

3.1 Simulation

To simulate a value or a relay state, select the

 alarm relay,  relay 1or 2  signal output 1or 2

with the [ ] or [ ] key. Press the [Enter] key. Change the value or state of the selected item with the [ ] or

[ ] key. Press the [Enter] key.



The value is simulated by the relay / signal output.

3.4.1

3.4.2

3.4.3

3.4.4

3.4.5

Alarm Relay: Relay 1: Relay 2 Signal Output 1: Signal Output 2

Open or closed. Open or closed. Open or closed. Actual current in mA Actual current in mA

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 and the transmitter reboots.

3.2 Set Time

Adjust date and time.

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AMI Hydrazine

Program List and Explanations

4 Operation

4.1 Sensors

4.1.1 Filter Time Constant: Used to damp noisy signals. The higher the

4.1.2 Hold after Cal: Delay permitting the instrument to stabilize again af-

4.2 Relay Contacts

4.3 Logger

4.3.1 Log Interval: Select a convenient log interval. Consult the table be-

filter time constant, the slower the system reacts to changes of the measured value. Range: 5–300 Sec

ter 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

See Relay Contacts 1 and 2, p. 23

The instrument is equipped with an internal logger. The logger data can be:

 downloaded to a PC by Hyperterminal or SWAN Terminal if

option “HyperTerminal interface” is installed.

 copied to a PC with an USB stick if option USB interface is in-

stalled.

The logger can save approx. 1500 data records. The Records consists of: Date, time, alarms, measuring value, measuring value uncompensated, case temperature, flow.

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). Range: 1 Second to 1 hour

Interval 1 s 5 s 1 min 5 min 10 min 30 min 1 h

Time 25 min 2 h 25 h 5 d 10 d 31 d 62 d

4.3.2 Clear Logger: If confirmed with yes, the complete logger data is de-

leted. A new data series is started.

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Program List and Explanations

5 Installation

5.1 Sensors

5.1.1

5.2 Signal Outputs

5.2.1 and 5.2.2 Signal Output 1 and 2: Assign process value, the current loop

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

Temp C omp

Temperature compensation in %. Range: 0.0– 5.0%

Note: 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.

range and a function to each signal output.

Available values:

 Hydrazine  Temperature  Sample Flow

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. 66

 Control upwards or control downwards for controllers.

See As control output, p. 67

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AMI Hydrazine

0.0 0.1 0.2 0.3 0.4 0.5

10 12

(0 - 20 [mA])

0 / 4

(4 - 20 [mA])

[mA]

Program List and Explanations

As process

values

The process value can be represented in 3 ways: linear, bilinear or logarithmic. See graphs below.

ABlinear

X Measured value

bilinear

[mA]

10 12

(0 - 20 [mA])

(4 - 20 [mA])

0 / 4

426

10 100 1’000 10’000

01234

X Measured value (logarithmic)

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.

If Parameter = Hydrazine

5.2.1.40.10 Range low: 0.00–1000 ppb

5.2.1.40.20 Range high: 0.00–1000 ppb

If Parameter = Temperature

5.2.1.40.11 Range low: -30.0 to +120 °C

5.2.1.40.21 Range high: -30.0 to + 120 °C

If Parameter = Sample flow

5.2.1.40.12 Range low: 0–300 rpm

5.2.1.40.22 Range high: 0–300 rpm

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Program List and Explanations

As control

output

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-con-

troller 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. Ziegler-Nichols method for the optimization of a PID controller: Parameters: Setpoint, P-Band, Reset time, Derivative time

Response to maximum control output

Tangent on the inflection point

Time

The point of intersection of the tangent with the respective axis will result in the parameters a and L.

Xp Tn Tv

= 1.2/a = 2L = L/2

Consult the manual of the control unit for connecting and programming details. Choose control upwards or downwards.

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Program List and Explanations

If Control upwards or Control downwards is active

Setpoint: User-defined process value (Measured value or flow) P-Band: Range below (upwards control) or above (downwards

control) the set-point, within the dosing intensity is reduced from 100% to 0% to reach the set-point without overshooting.

5.2.1.43 Control Parameters: if Parameter = Hydrazine

5.2.1.43.10 Setpoint

5.2.1.43.20 P-Band

5.2.1.43 Control Parameters: if Parameter = Temperature

5.2.1.43.11 Setpoint

5.2.1.43.21 P-Band

5.2.1.43 Control Parameters: if Parameter = Sample Flow

5.2.1.43.12 Setpoint

5.2.1.43.22 P-Band

Range: 0.00–1000 ppb

Range:0.00–1000 ppb

Range: -30 to +120 °C

Range: 0 to +100 °C

Range: 0–300 rpm

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-

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

5.2.1.43.5 Control timeout: If a controller action (dosing intensity) is constantly

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

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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.

Note: Above definition assumes that the alarm relay is used as normally open (Terminals 10/11). If terminals 12/11 are used, alarm relay normally closed, then the above definition is inverted. See also Alarm Relay, p. 22 and Connection Diagram,

p. 20

Program alarm levels for the following parameters:

 Alarm Hydrazine  Sample Flow  Sample Temp.  Case Temp. high  Case Temp. low

5.3.1.1 Alarm Hydrazine

5.3.1.1.1 Alarm High: If the measured value rises above the alarm high val-

ue, the alarm relay is activated and E001, is displayed in the message list. Range: 0.00–1000 ppb

5.3.1.1.25 Alarm Low: If the measured value falls below the alarm low value,

the alarm relay is activated and E002 is displayed in the message list. Range: 0.00–1000 ppb

5.3.1.1.35 Hysteresis: Within the hyst. range, the relay does not switch. This

5.3.1.1.45 Delay: Duration, the activation of the alarm relay is retarded after

prevents damage of relays contacts when the measured value fluctuates around the alarm value. Range. 0.00–1000 ppb

the measuring value has risen above/fallen below the programmed alarm. Range: 0–28‘800 Sec

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Program List and Explanations

5.3.1.2 Sample Flow: Define at which sample flow a flow alarm should be issued.

5.3.1.2.1 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

Note: Sufficient flow is essential for a correct measurement. We recommend to program yes.

5.3.1.2.2 Alarm High: If the measuring values rises above the programmed

value E009 will be issued. Range: 150–300 rpm

5.3.1.2.35 Alarm Low: If the measuring values falls below the programmed

value E010 will be issued. Range: 150–300 rpm

5.3.1.3 Sample Temp.: Define at which sample temperature an alarm should be issued.

5.3.1.3.1 Alarm High: If the measured value rises above the alarm high val-

ue, the alarm relay is activated and E007 is issued. Range: 30–70 °C

5.3.1.3.25 Alarm Low: If the measured value rises above the alarm high value,

the alarm relay is activated and E008 is issued. Range: 0–20 °C

5.3.1.4 Case Temp. high: Set the alarm high value for temperature of elec- tronics housing. If the value rises above the programmed value E013 is issued. Range: 30–75 °C

5.3.1.5 Case Temp. low: Set the alarm low value for temperature of elec- tronics housing. If the value falls below the programmed value E014 is issued. Range: -10 to + 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 Contacts 1 and 2, p. 23. The function of relay contacts 1 or 2 are defined by the user.

Note: 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

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

5.3.2.300 Setpoint: If the measured value rises above respectively falls below

the set-point, the relay is activated.

Parameter Range

Hydrazine 0.00–1000 ppb

Temperature -30 to + 120 °C

Sample flow 0–300 rpm

5.3.2.400 Hysteresis: within the hysteresis range, the relay does not switch.

5.3.2.50 Delay: Duration, the activation of the alarm relay is retarded after

A-96.250.501 / 280915 71

This prevents damage of relay contacts when the measured value fluctuates around the alarm value.

Parameter Range

Hydrazine 0.00–1000 ppb

Temperature 0 to + 100 °C

Sample flow 0–300 rpm

the measuring value has risen above/fallen below the programmed alarm. Range. 0–600 Sec

AMI Hydrazine

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.

5.3.2.22 Parameter: select a process value:

 Hydrazine  Temperature  Sample flow

5.3.2.32 Settings

Choose the respective actuator:

 Time proportional  Frequency  Motor valve

Actuator = Time proportional

Examples of metering devices that are driven time proportional are solenoid valves, peristaltic pumps.

Dosing is controlled by the operating time.

5.3.2.32.20 Cycle time: duration of one control cycle (on/off change).

Range: 0–600 sec.

5.3.2.32.30 Response time: Minimal time the metering device needs to react.

5.3.2.32.4 Control Parameters:

5.3.2.32.21 Pulse frequency: Max. pulses per minute the device is able to re-

5.3.2.32.31 Control Parameters:

Range: 0–240 sec.

Range for each Parameter same as 5.2.1.43, p. 68

Actuator = Frequency

Examples of metering devices that are pulse frequency driven are the classic membrane pumps with a potential free triggering input. Dosing is controlled by the repetition speed of dosing shots.

spond to. Range: 20–300/min.

Range for each Parameter same as 5.2.1.43, p. 68

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Program List and Explanations

Actuator = Motor valve

Dosing is controlled by the position of a motor driven mixing valve.

5.3.2.32.22 Run time: Time needed to open a completely closed valve

Range: 5–300 Sec.

5.3.2.32.32 Neutral zone: Minimal response time in % of the runtime. If the re-

5.3.2.32.4 Control Parameters:

5.3.2.1 Function = Timer

5.3.2.24 Mode: Operating mode

quested dosing output is smaller than the response time, no change will take place. Range: 1–20 %

Range for each Parameter same as 5.2.1.43, p. 68

The relay will be active repetitively depending on the programmed time scheme.

Mode interval daily weekly

5.3.2.24

5.3.2.340 Interval: The interval can be programmed within a range

5.3.2.44 Run Time: Enter the time the relay stays active.

5.3.2.54 Delay: during run time plus the delay time the signal and control

5.3.2.6 Signal Outputs: Select operating mode of the signal output:

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Interval

of 1–1440 min.

Range: 5–6000 sec.

outputs are held in the operating mode programmed below. Range: 0–6’000 sec.

Cont.: Signal outputs continue to issue the measured value. Hold: Signal outputs hold the last valid measured value.

Measurement is interrupted. Errors, except fatal errors, are not issued.

Off: Signal outputs are switched off (set to 0 or 4 mA).

Errors, except fatal errors, are not issued.

AMI Hydrazine

Program List and Explanations

5.3.2.7 Output/ Control: Select operating mode of the controller output:

Cont.: Controller continues normally.

Hold: Controller continues based on the last valid value.

Off: Controller is switched off.

5.3.2.24

5.3.2.341 Start time: to set the start time proceed as follows:

5.3.2.44 Run Time: see Interval

5.3.2.54 Delay: see Interval

5.3.2.6 Signal Outputs: see Interval

5.3.2.7 Output/ Control: see Interval

daily

The relay contact can be activated daily, at any time of a day.

1 Press [Enter], to set the hours.

2 Set the hour with the [ ] or [ ] keys.

3 Press [Enter], to set the minutes.

4 Set the minutes with the [ ] or [ ] keys.

5 Press [Enter], to set the seconds.

6 Set the seconds with the [ ] or [ ] keys.

Range: 00:00:00–23:59:59

5.3.2.24

5.3.2.342 Calendar:

5.3.2.342.1 Start time: The programmed start time is valid for each of the pro-

5.3.2.342.2 Monday: Possible settings, on or off

5.3.2.342.8 Sunday: Possible settings, on or off

5.3.2.44 Run Time: see Interval

5.3.2.54 Delay: see Interval

5.3.2.6 Signal Outputs: see Interval

5.3.2.7 Output/ Control: see Interval

weekly

The relay contact can be activated at one or several days, of a week. The daily starting time is valid for all days.

grammed days. To set the start time see 5.3.2.341, p. 74. Range: 00:00:00–23:59:59

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Program List and Explanations

5.3.2.1 Function = Fieldbus

The relay will be switched via the Profibus input. No further parameters are needed.

5.3.4 Input: The functions of the relays and signal outputs can be defined depending on the position of the input contact, i.e. no function, closed or open.

Note: If the option 2 AMI Hydrazine and <Channel Selection> is set to <External>, the Input will be set to “Active = no” and no further settings are possible.

5.3.4.1 Active: Define when the input should be active:

No:

When closed:

When open:

5.3.4.2 Signal Outputs: Select the operation mode of the signal outputs

when the relay is active:

Continuous:

Hold: Signal outputs issue the last valid measured value.

Off:

5.3.4.3 Output/Control: (relay or signal output):

Continuous:

Hold: Controller continues on the last valid value. Off:

5.3.4.4 Fault:

No:

Yes: Message E024 is issued and stored in the message

5.3.4.5 Delay: Time which the instrument waits, after the input is deactivat-

ed, before returning to normal operation. Range: 0–6‘000 Sec

Sample Stream is connected to the

Input is never active.

Input is active if the input relay is closed

Input is active if the input relay is open

Signal outputs continue to issue the measured value.

Measurement is interrupted. Errors, except fatal errors, are not issued.

Set to 0 or 4 mA respectively. Errors, except fatal errors, are not issued.

Controller continues normally.

Controller is switched off.

No message is issued in pending error list and the alarm relay does not close when input is active.

list. The Alarm relay closes when input is active.

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AMI Hydrazine

Program List and Explanations

5.4 Miscellaneous

5.4.1 Language: Set the desired language.

Language German English French Spanish

5.4.2 Set defaults: Reset the instrument to factory default values in three

5.4.3 Load Firmware: Firmware updates should be done by instructed

different ways:

Set defaults no Calibration In parts Completely

 Calibration: Sets calibration values back to default. All other

values are kept in memory.

 In parts: Communication parameters are kept in memory. All

other values are set back to default values.

 Completely: Sets back all values including communication

parameters.

service personnel only.

Load Firmware no yes

5.4.4 Password: Select a password different from 0000 to prevent unau-

5.4.4.1 Messages

5.4.4.2 Maintenance

5.4.4.3 Operation

5.4.4.4 Installation.

5.4.5 Sample ID: Identify the process value with any meaning full text,

thorized access to the following menus:

Each menu may be protected by a different password. If you forgot the passwords, contact the closest SWAN representative.

such as KKS number.

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AMI Hydrazine

Program List and Explanations

5.5 Interface

Select one of the following communication protocols. Depending on your selection, different parameters must be defined.

5.5.1 Protocol: Profibus

5.5.20 Device address: Range: 0–126

5.5.30 ID-Nr.: Range: Analyzer; Manufacturer; Multivariable

5.5.40 Local operation: Range: Enabled, Disabled

5.5.1 Protocol: Modbus RTU

5.5.21 Device address: Range: 0–126

5.5.31 Baud Rate: Range: 2

5.5.41 Parity: Range: none, even, odd

5.5.1 Protocol: Hyper Terminal

5.5.23 Baudrate: Range: 2 see separate RS232 Operation Manual for Logger download.

5.5.1 Protocol: USB-Stick:

Only visible if an USB interface is installed. No further settings are possible.

400–115 200 Baud

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AMI Hydrazine

Default Values

10. Default Values

Operation:

Sensors: Filter Time Const.:..................................................................30 Sec

Hold after Cal.:.....................................................................300 Sec

Alarm Relay ...................................................................... same as in Installation

Relay 1 and 2 ...................................................................... same as in Installation

Input ...................................................................... same as in Installation

Logger: Logger Interval:.............................................................. 30 Minutes

Clear Logger: ................................................................................no

Installation:

Sensors Temp. comp.: .............................................................................. 3%

Signal Output 1 Parameter:........................................................................Hydrazine

Current loop: .....................................................................4 – 20 mA

Function: ..................................................................................linear

Scaling: Range low: ............................................................0.00 ppb

Scaling: Range high:............................................................. 100ppb

Signal Output 2 Parameter:....................................................................Temperature

Current loop: .....................................................................4 – 20 mA

Function: ..................................................................................linear

Scaling: Range low: ................................................................0.0 °C

Scaling: Range high:.............................................................50.0 °C

Alarm Relay: Alarm Hydrazine:

Alarm high:..........................................................................1000ppb

Alarm low: ...........................................................................0.00 ppb

Hysteresis: ..............................................................................10ppb

Delay:.......................................................................................5 Sec

Sample Flow; Flow Alarm ........................................................... yes

Sample Flow; Alarm high.....................................................300 rpm

Sample Flow; Alarm low ......................................................150 rpm

Sample Temp; Alarm high:.......................................................55 °C

Sample Temp; Alarm low: ..........................................................5 °C

Case temp. high:......................................................................65 °C

Case temp. low: .........................................................................0 °C

Relay 1 and 2 Function:.......................................................................... limit upper

Parameter: ........................................................................Hydrazine

Setpoint:.............................................................................1000 ppb

Hysteresis: .............................................................................10 ppb

Delay:.....................................................................................30 Sec

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AMI Hydrazine

Default Values

If Function = Control upw. or dnw:

Parameter:.......................................................................Hydrazine

Settings: Actuator: ..........................................................Frequency

Settings: Pulse Frequency: .............................................120 /min.

Settings: Control Parameters: Setpoint: ......................... 1000 ppb

Settings: Control Parameters: P-band: ..............................10 ppb

Parameter:...................................................................Temperature

Settings: Actuator: ..........................................................Frequency

Settings: Pulse Frequency: .............................................120 /min.

Settings: Control Parameters: Setpoint: ...............................30 °C

Settings: Control Parameters: P-band: ..................................1 °C

Parameter:................................................................... Sample flow

Settings: Actuator: ..........................................................Frequency

Settings: Pulse Frequency: .............................................120 /min.

Settings: Control Parameters: Setpoint: ...........................300 rpm

Settings: Control Parameters: P-band: ..............................10 rpm

Common Settings

Settings: Control Parameters: Reset time: ...........................0 Sec

Settings: Control Parameters: Derivative Time: ...................0 Sec

Settings: Control Parameters: Control Timeout:.................. 0 Min.

Settings: Actuator: ................................................ Time proportional

Cycle time: ............................................................................ 60 s

Response time: ..................................................................... 10 s

Settings: Actuator ......................................................... Motor valve

Run time: ............................................................................... 60 s

Neutral zone: ...........................................................................5%

If Function = Timer:

Mode:.................................................................................... Interval

Interval: ................................................................................ 1 min

Mode: ........................................................................................daily

Start time:........................................................................ 00.00.00

Mode:..................................................................................... weekly

Calendar; Start time: ....................................................... 00.00.00

Calendar; Monday to Sunday:.................................................. Off

Run time: ...............................................................................10 Sec

Delay: ......................................................................................5 Sec

Signal output:............................................................................. cont

Output/Control: .......................................................................... cont

Input: Active............................................................................when closed

Signal Outputs........................................................................... hold

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AMI Hydrazine

Default Values

Output/Control ..............................................................................off

Fault..............................................................................................no

Delay......................................................................................10 Sec

Miscellaneous Language:............................................................................. English

Set default:....................................................................................no

Load firmware: ..............................................................................no

Password: ........................................................... for all modes 0000

Sample ID: ....................................................................... - - - - - - - -

Interface Protocol:..................................................................... Hyperterminal

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Index

11. Index

Alarm Hydrazine . . . . . . . 69

Alarm Relay . . . . . . . . 8, 22

Cable thicknesses . . . . . . 18

Cal. History . . . . . . . . . . 61

Calendar . . . . . . . . . . . 74

Changing values

Checklist . . . . . . . . . . . 14

Cleaning

Flow Cell

Hydrazine sensor. . . . 38

Reference Electrode. . 40

Connect

Sample inlet

Waste . . . . . . . . . . 15

Control Parameters

. . . . . . . 34

. . . . . . . . 41

. . . . . . . 15

. . . . . 68

Default Values . . . . . . . . 78

EPDM seal . . . . . . . . . . 44

Error List . . . . . . . . . . . 51

Flow . . . . . . . . . . . . . . 41

Fluidics Function

. . . . . . . . . . . . . 9

Control upwards / downwards 72 Limit upper / lower

Timer. . . . . . . . . . . 73

. . . 71

Input . . . . . . . . . . 8, 22, 75

Instrument Overview . . . . 13

Interface . . . . . . . . . . . . 8

Interface RS232 . . . . . . . 26

Interface RS485 . . . . . . . 27

Interface USB . . . . . . . . 27

Logger . . . . . . . . . . . . 64

Longer Stop of Operation. . 50

Mounting requirements . . . 15

On-site requirements . . . . 11

Power Supply . . . . . . 11, 21

Relay Contacts 1 and 2 . . . 23

Relays. . . . . . . . . . . . . . 8

Safety Features . . . . . . . . 9

Sample Flow . . . . . . . . . 70

Sample flow, establish

Sample Temp. . . . . . . . . 70

Setup . . . . . . . . . . . . . 28

Signal Outputs

Simulation . . . . . . . . . . 63

Software

System, Description of . . . . 8

. . . . . . . . . . . 33

. . . 29

. . . . 8, 25, 65

Technical Data . . . . . . . . 13

Terminals . . . . 20, 22–23, 27

Wire . . . . . . . . . . . . . . 18

A-96.250.501 / 280915 81

AMI Hydrazine

Notes

12. Notes

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AMI Hydrazine

Notes

A-96.250.501 / 280915 83

AMI Hydrazine

SWAN

is represented worldwide by subsidiary companies and distributors.

cooperates with independent representatives all over the world.

SWAN Products

Analytical Instruments for:

High Purity Water

Feedwater, Steam and Condensate

Potable Water

Pool and Sanitary Water

Cooling Water

Waste Water and Effluents

Made in Switzerland

84 A-96.250.501 / 280915

Swan Analytical Instruments AMI Hydrazine Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Safety Instructions

1.1. Warning Notices

1.2. General Safety Regulations

1.3. Restrictions for use

2. Product Description

2.1. Description of the System

2.2. Instrument Specification

2.3. Instrument Overview

3. Installation

3.1. Installation Checklist Monitors

3.2. Mounting of Instrument Panel

3.3. Connecting Sample and Waste

3.4. Install the Reference Electrode

3.5. Install the Temperature Sensor

3.6. Electrical Connections

3.6.1 Connection Diagram

3.6.2 Power Supply

3.7. Relay Contacts

3.7.1 Input

3.7.2 Alarm Relay

3.7.3 Relay Contacts 1 and 2

3.8. Signal Outputs

3.8.1 Signal Output 1 and 2 (current outputs)

3.9. Interface Options

3.9.1 Signal Output 3

3.9.2 Hyperterminal Interface

3.9.3 Profibus, Modbus Interface

3.9.4 USB Interface

4. Instrument Setup

4.1. Install the Diisopropylamine Bottle

4.2. Establish Sample Flow

4.3. Programming

4.4. Run in period

4.5. Correction of Hydrazine Sensor

5. Operation

5.1. Keys

5.2. Display

5.3. Software Structure

5.4. Changing Parameters and values

6. Maintenance

6.1. Maintenance Table

6.2. Stop of Operation for Maintenance

6.3. Cleaning of protective filter

6.4. Cleaning of Hydrazine sensor

6.5. Cleaning of Reference Electrode

6.6. Cleaning of Flow Cell

6.7. Changing Diisopropylamine Bottle

6.8. Changing the Diffusion Tube

6.9. Calibration of Hydrazine Sensor

6.9.1 Calibration Procedure

6.9.2 Zero Hydrazine

6.9.3 Process Hydrazine

6.10. Replacing Fuses

6.11. Longer Stop of Operation

7. Troubleshooting

7.1. Error List

8. Program Overview

8.1. Messages (Main Menu 1)

8.2. Diagnostics (Main Menu 2)

8.3. Maintenance (Main Menu 3)

8.4. Operation (Main Menu 4)

8.5. Installation (Main Menu 5)

9. Program List and Explanations

1 Messages

2 Diagnostics

3 Maintenance

4 Operation

5 Installation

10. Default Values

11. Index

12. Notes