Swan Analytical Instruments AMI Hydrazine Operator's Manual
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
© 2015, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved
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
A-96.250.501 / 280915 1
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
2 A-96.250.501 / 280915
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.
A-96.250.501 / 280915 3
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
4 A-96.250.501 / 280915
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
A-96.250.501 / 280915 5
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.
6 A-96.250.501 / 280915
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.
A-96.250.501 / 280915 7
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.
8 A-96.250.501 / 280915
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].
A-96.250.501 / 280915 9
AMI Hydrazine
Product Description
A
B
C
D
E
F
G
H
A
Constant head
B
Overflow tube to waste (long)
C
Overflow tube to sensor (short)
D
Flow regulating valve
E
Sample inlet
F
Hydrazine sensor
K
L
J
I
G
Filter vessel
H
Sample outlet
I
Garb sample outlet
J
Grab sample valve
K
Diisopropylamine
L
Diffusions tube
10 A-96.250.501 / 280915
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
A-96.250.501 / 280915 11
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”
”
16
/
7
850 mm / 33½”
824 mm / 32
12 A-96.250.501 / 280915
AMI Hydrazine
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Product Description
2.3. Instrument Overview
A-96.250.501 / 280915 13
A
Panel
B
Transmitter
C
Bottle holder
D
Diisoproylamine bottle
E
Diffusion tube
F
Reference electrode
G
Grab sample valve
H
Grab sample outlet
I
Flow regulating valve
J
Hydrazine sensor
K
Filter vessel
L
Sample outlet
M
Sample inlet
N
Hall sensor (not visible)
O
Flow cell block
P
Constant head
Q
Overflow tube to sensor (short)
R
Overflow tube to waste (long)
S
Constant head cover
T
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.
14 A-96.250.501 / 280915
AMI Hydrazine
A
D
E
B
C
F
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.
A
Serto fitting at sample
inlet
B
Compression ferrule
C
Knurled nut
D
Hose nozzle at sample
outlet
E
Plastic tube 4x6
F
1/2” tube
A-96.250.501 / 280915 15
AMI Hydrazine
C
B
D
E
A
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.
A
Connector
B
Protective cap
C
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
16 A-96.250.501 / 280915
AMI Hydrazine
A
B
C
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.
A
Temperature sensor
B
Constant head cover
C
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.
A-96.250.501 / 280915 17
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
A
PG 11 cable gland: cable Ø
B
PG 7 cable gland: cable Ø
C
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
2
/ AWG 14
2
/ AWG 23
18 A-96.250.501 / 280915
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.
A-96.250.501 / 280915 19
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.
20 A-96.250.501 / 280915
AMI Hydrazine
A
B
C
D
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.
A
Power supply connector
B
Neutral conductor, Terminal 2
C
Phase conductor, Terminal 1
D
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
10
12
11
0V
1)
10
12
11
0V
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
1)
NC
Normally
Closed
10/11 Active (opened) during normal
operation.
Inactive (closed) on error and
loss of power.
NO
Normally
Open
12/11 Active (closed) during normal
operation.
Inactive (opened) on error and
loss of power.
1) usual use
22 A-96.250.501 / 280915
AMI Hydrazine
6
0V
7
6
0V
7
A
B
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
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
A
BC
DE
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.
A
AC or DC power supply
B
AMI Transmitter
C
External power relay
D
Snubber
E
Power relay coil
pumps and so on can be connected without further measures
A
AB
C
tact is used for opening, the other for closing the valve, i.e. with the
2 relay contacts available, only one motor valve can be controlled.
Motors with loads bigger than 0.1A must be controlled via external
power relays or an AMI relay box.
A
BC
AMI Transmitter
B
PLC or controlled pulse pump
C
Logic
A
AC or DC power supply
B
AMI Transmitter
C
Actuator
M
24 A-96.250.501 / 280915
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