Kewaunee Air Alert 600 User manual

1
AIR ALERT 600
FUME HOOD VELOCITY ALARM
FOR
SUPREME AIR VENTURI FUME HOODS
Installation and Operating Manual

2
Issue 02 June 2017

3
Table of Contents
1 Safety 4
1.1
Safety Practices 5
1.2
Warning Notices 5
1.3
Precautions 5
1.4
General Operating Conditions 6
1.5
Environmental Conditions 6
1.6
Electrical Safety 7
1.7
Electrical Protection 8
1.8
EMC Compliance 8
1.9
Warning Labels 8
2Overview of the Airflow Monitor 9
2.1
Operator Display Panel 10
2.2
Display Features 11
2.3
Displayed Alarms and Events 12
2.4
Additional Alarms and Events 12
2.5
LED Indication 13
2.6
Audible Alarm Sounder 13
2.7
Pushbuttons 13
2.8
Diagnostics Menu 14
2.9
External Connections 16
3Functions and Operation 19
3.1
Airflow functions 20
3.2
Input functions 21
4Components 24
4.1
Airflow Monitor 25
4.2
Auxiliary Components 26
5Installation 27
5.1
Installation of Standard Components 28
5.2
Airflow Monitor Installation 29
5.3
Airflow Sensor Installation 30

4
6Configuration & Calibration 32
6.1
Configuration 33
6.2
Start Up 33
6.3
Calibration 34
6.4
Calibration Notes 35
7Auxiliary Features and connections 36
7.1
Temperature Sensor 37
8RS485 Coms output 39
8.1
Overview and connections 40
8.2
Configuration settings 41
8.3
Testing and troubleshooting 43
8.4
Config Manager 44
9 Warranty 46
9.1
Limitation of warranty and liability 47

5
1. SAFETY

6
1.1 Safety Practices
This document describes the general safety practices and precautions that must be
observed when operating the Airflow Monitor.
This advice is intended to supplement, not supersede, the normal safety codes in the user’s
country. The information provided does not cover every safety procedure that should be
followed. Ultimately, maintenance of a safe laboratory environment is the responsibility of
the user and the user’s organisation.
Please consult all documentation supplied with the Airflow Monitor before starting to work.
Carefully read the safety information in this document and in the other documentation
supplied. When setting up the equipment or performing analysis or maintenance
procedures, strictly follow the instructions provided.
1.2 Warning Notices
Within this User Guide WARNINGS are used to highlight information or instructions that
must
be followed in order to avoid personal injury to yourself or other people in the vicinity,
eg. switch off the mains voltage before any maintenance.
WARNINGS appear as below:
WARNING
Switch off the mains voltage and remove the power supply
before maintenance.
1.3 Precautions
The following precautions must be observed when using the Airflow Monitor and associated
systems:
•Be sure that the voltage of the Airflow Monitor equipment corresponds to the voltage
available where it is to be installed.
•Never remove the side or back panels of the Airflow Monitor without first shutting
down the equipment and disconnecting the power supply.

7
1.4 General Operating Conditions
The Airflow Monitor and equipment have been designed and tested in accordance with the
safety requirements of the International Electrotechnical Commission (IEC). The Airflow
Monitor conforms to IEC61010-1 (Safety Requirements for electrical equipment for
measurement, control and laboratory use) as it applies to IEC Class 1 (earthed) appliances,
and therefore meets the requirements of EC directive 73/23/EEC.
If possible, avoid any adjustment, maintenance or repair to the eqipment whilst covers are
open or it is operative. However, if any adjustment, maintenance or repair is necessary while
the covers are open, this must be done by a skilled person who is aware of the hazards
involved.
Whenever circumstances arise that mean an Airflow Monitor may be unsafe, make it
inoperative. In particular, an Airflow Monitor may be unsafe if it:
•Shows visible damage.
•Fails to perform correctly.
•Has been subjected to severe transport stresses.
•Has been subjected to prolonged storage in unfavorable conditions.
1.5 Environmental Conditions
The Airflow Monitor should only be used under the following conditions:
•Indoors.
•In ambient temperatures between 41°F and 104°F.
•With relative humidity below 80% for temperatures up to 88°F, decreasing linearly to
50% relative humidity at 104°F.
•Electrical supply fluctuations not exceeding +10% of the nominal voltage.
WARNING
The protection provided by the equipment may be impaired if
the environmental conditions do not lie within these
parameters.

8
1.6 Electrical Safety
The Airflow Monitor and associated equipment are designed to protect the user from
potential electrical hazards. This section describes some recommended electrical safety
practices.
WARNING
Lethal voltages are present at certain points within the equipment.
When the equipment is connected to mains power, removing the
equipment covers is likely to expose live parts.
Even when the power switch is off, high voltages can still be present
– capacitors within the equipment may still be charged even if the
equipment has been disconnected from all live voltage sources.
The Airflow Monitor and associated equipment must be correctly connected to a suitable
electrical supply. The supply must have a correctly installed protective conductor (earth or
ground) and must be installed and checked by a qualified electrician before initial power up.
WARNING
Any interruption of the protective conductor inside or outside the
Airflow Monitor, or disconnection of the protective conductor terminal
is likely to make the equipment dangerous.
Intentional interruption of the protective conductor is prohibited.
WARNING
If the mains power supply has to be replaced, ensure that the
replacement power supply is appropriately rated and approved for
the intended use.
WARNING
To prevent potential personal injury and damage to the equipment,
switch OFF all components in the system and disconnect them from
the mains power supply before altering, or making any new electrical
connections.
When working with the Airflow Monitor System:
•Connect the equipment to a correctly installed mains power outlet that has a
protective conductor connection.
•Do not operate the equipment with any covers or internal parts removed.
•Disconnect the equipment from all live voltage sources before opening it to make any
adjustments, replacements, maintenance or repair. If the opened equipment must be
operated for further adjustment, maintenance or repair, this must only be done by a
supplier’s Service Engineer.
If it is possible that the equipment is no longer electrically safe for use, make the equipment
inoperative and secure it against any unauthorised or unintentional operation.

9
The electrical safety of the equipment is likely to be impaired if:
•It has any signs of visible damage.
•If it has been subjected to prolonged storage in unfavourable conditions.
•If it has been subjected to severe stress during transportation.
1.7 Electrical Protection
Observe the following electrical protection precautions:
•Insulation: Class I rating for external circuits. Only connect equipment that meets the
requirements of IEC 61010-1, IEC 60950 or equivalent standards.
•Installation Category: The equipment is able to withstand transient over-voltages
typically present on the mains supply. The normal level of transient over-voltages is
impulse withstand (overvoltage) Category II of IEC 60364-4-443.
•Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally,
however, temporary conductivity caused by condensation must be expected.
1.8 EMC Compliance
EC Directive
The Airflow Monitor System is designed and tested to meet the requirements of the EC
directive 89/336/EEC and 93/68/EEC and complies with the EMC standard EN61326 (EMC
standard for electrical equipment for measurement, control and laboratory use) and
EN55011 (ISM) Class A (RF emissions).
FCC Rules and Regulations
The Airflow Monitor System is classified as a digital device used exclusively as industrial,
commercial or medical test equipment. It is exempt from the technical standards specified in
Part 15 of the FCC Rules and Regulations based on Section 15.103 (c).
1.9 Warning Labels
Warning labels attached to the equipment draw attention to specific hazards - refer to this
guide and other documentation provided with the equipment for more details concerning
potential hazards and any precautions or other actions that must be taken.

10
2. Overview of the Airflow Monitor

11
2.1 Operator Display Panel
Velocity bar graph or
Alarm Time Line
Velocity display fpm or m/sec or
Plain Text “Air Safe / Air Fail”
Enter and +/- buttons for Menu
Configuration and Calibration.
ENTER / Mute also used as
Mute button for audible alarm
Note:
Access to the Calibration and Configuration menus is password protected and is factory
set. To access and or change the password contact the supplier for the engineers
password and enter the Passwords in the Main Menu or alternatively use a Laptop
connected to the Com port and use the Upload/Download software provided,
Safe
Caution
Alarm
0 200
Display Screen backlight color
changes in alarm conditions.
0 200
200
0
200
0

12
2.2 Display Features
The Airflow Monitor display has the following features:
The digital display is a backlit, full color high resolution graphic unit with a visual display area of
approximately 45 x 34mm. The display operates through the software allowing the generation of
figures, wording and icons.
The display shows the fume hood face velocity in
fpm
or
m/sec
when enabled or the alternative with no
velocity reading but showing
AIR FAIL / AIR SAFE
as continuous display. All of the above are
configurable via the alarm key pad.
The display background color will change when in an alarm condition: -
Air Safe = Green / Low or High Air Alarm = Red / Warning Air Alarm = Amber.
An ‘
event time line
’ segmented into 60 x 1 minute segments will scroll across the display (when
enabled). This takes the form of a graphical scale ranged over 0-200 fpm that will progress from the
right-hand side to the left-hand side of the screen – representing the airflow value at each segment. The
segment color will change if the value is in the range of an airflow alarm:-
Air Safe = White / Low or High Air Alarm = Red / Warning Air Alarm = Amber.
The alternative to the event time line is a dynamic ‘
bar graph
’ representing the airflow velocity.
The display shows an up or down
arrow
Icon in the bottom right hand corner of the screen when an
input function is set to Hi / Lo (2 speed operation). The Up arrow indicates High speed and the Down
arrow indicates Low speed.
The display shows a
Horn
icon (with line through it) when the audible alarm is in the Muted condition
The display backlight will dim to a fixed low level when certain functions are active to save energy:-
Setback
Input is active - display backlight reduces until input is not active.
Backlight will resume to normal level whilst Set Up or Diagnostics menus are accessed.

13
2.3 Displayed Alarms and Events
Sash High
– will be displayed when the Sash alarm is enabled and the sash is raised above
the max safe working opening. Sash High will alternate on/off with the velocity
reading. The Screen color will change to Amber.
Ext Alarm
– will be displayed when the external alarm input is activated (when enabled)
Ext Alarm will alternate on/off with the velocity reading. The Screen color will change
to Red.
Air Fail -
will be displayed if the airflow is less than the Low air alarm point.
Air Fail will alternate on/off with the velocity reading. The Screen color will change
to Red.
High Air -
will be displayed if the airflow is more than the High air alarm point.
High Air will alternate on/off with the velocity reading. The Screen color will change
to Red.
Set-back
-will be displayed if the night set-back function is activated. Setback will alternate
on/off with the velocity reading and the Screen color will change to Red and the
backlight will dim.
Alm Dis
- will be displayed if the alarm disable function is activated (when enabled)
Alarm Disable will alternate on/off with the velocity reading. The Screen color will
change to Red.
Close Sash
- will be displayed if the sash is raised and the operator is not present (when enabled)
Close Sash will alternate on/off with the velocity reading. The Screen color will
change to Red.
Emergency
- will be displayed if the Emergency input is activated. Emergency will alternate on/off
with the velocity reading. The Screen color will change to Red.
Up/Down Arrow -
will be displayed if Hi/Lo 2 Speed operation is enabled.
Off / Start up xx -
will be displayed if Fan Stop operation is enabled. Off will be displayed
when the input is active and the Start Up timer will be displayed when the input is off.
2.4 Additional Alarms and Events
Mains Fail
- will be displayed if the power fails to the monitor (when enabled)
*Note – this is an optional extra feature that requires an additional battery unit
Low Temp
- will be displayed if the fume hood temperature drops below the low temp alarm
point (when enabled).
This display will alternate on/off with the velocity reading
*Note – this is an optional extra feature that requires an additional temperature sensor
High Temp
- will be displayed if the fume hood temperature rises above the high temp alarm
point (when enabled)
*Note – this is an optional extra feature that requires an additional temperature sensor

14
2.5 LED Indicators
Instead of LED indicators the alarm unit screen backlight operates in 3 colors: -
Red –
Alarm
Amber
– Caution
Green
– Safe
2.6 Audible Alarm Sounder
The airflow monitor has an audible sounder with local or remote mute facility. The audible alarm can
be permanently disabled in the cal config menu.
The display will show a Mute Icon in the bottom left hand side of the screen whenever the audible alarm
is muted or disabled.
2.7 Pushbuttons
Enter
The alarm has an Enter button -- this is multi-functional as follows:-
Press
Enter
momentarily when alarm is sounding will mute the alarm.
Press
Enter
for 5 secs will gain access to
Calibration
and
Configuration
menus (both menus password
protected).
Password 0-0-0-0
+& -
The alarm has + / - buttons that can be used to scroll through the calibration and configuration menu or
to select options or values.

15
2.8 Diagnostics Menu
The airflow monitor has a diagnostics menu that shows current Input and Output status, Coms data
and also includes an Alarm Test function.
To access the diagnostics menu press the '+' and '-' buttons together whilst in the run screen.
The diagnostics sub menu will appear showing the following options-
a. Alarm Test
b. Coms data
c. I/O Status
d. Done
Use the +/- buttons to scroll and Enter to select the required parameter.
a.
Alarm Test
- the Screen will show “Testing Safe LED”, then “Testing Warning LED” and then then
Testing Alarm”, the audible alarm will sound during the test.
The screen will then return to the Diagnostics menu.
b.
Coms data
- the Screen will show the coms setting data for the relevant selected protocol:-
Protocol = None/TEL/Modbus/BACnet
ID = Slave ID for Modbus or Device Instance for BACnet
Baud Rate = Shows selected Baud Rate
Parity = Shows selected Parity
Tx & Rx = the display will show the current data packets sent and received, the displayed value will
rollover to zero when the maximum count is reached.
c.
I/O Status
- when selected the following options are shown:-
Input Data
Output Data
Sensor Data
Done
Input Data:-
Input 1 - 0 / Off / On / Not Used
Input 2 - 0 / Off / On / Not Used
Input 3 - 0 / Off / On / Not Used
0 = Analogue Input e.g. Temperature sensor Input Voltage (0-5VDC)
Off = Input Open
On = Input Closed
Not Used = Input not assigned

16
Output Data:-
Output 1 - Off / On
Output 2 - Off / On
Output 3 - Off / On
Output Off = Output Open or not assigned
Output On = Output Closed
Sensor Data:-
Airflow 00.0 %
Temperature ◦C
Airflow % = Output of airflow sensor in %, 100% = no airflow
Temperature = Temperature in ◦C or ◦F - (when enabled)
Done - returns to Diagnostics menu.
d.
Done
- when selected the monitor returns to the run screen.

17
2.9 External Connections
The airflow monitor has the following Inputs:-
Input 1
Volt free input configurable for normally closed, normally open relays or Analogue 0-5VDC Input
This input can be configured as:-
Digital Input Functions (Closed or Open volt free contact):-
Alarm disable
Night set-back
External alarm
Emergency
Sash High
High / Low
Sash Warning
Mains Fail
Fan Stop
Mute
Analogue Input Functions:-
Temperature
Input 2
Volt free input configurable for normally closed, normally open relays or Analogue 0-5VDC Input
This input can be configured as:-
Digital Input Functions (Closed or Open volt free contact):-
Alarm disable
Night set-back
External alarm
Emergency
Sash High
High / Low
Sash Warning
Mains Fail
Fan Stop
Mute
Analogue Input Functions:-
Temperature

18
Input 3
Volt free input configurable for normally closed, normally open relays or Analogue 0-5VDC Input
This input can be configured as:-
Digital Input Functions (Closed or Open volt free contact):-
Alarm disable
Night set-back
External alarm
Emergency
Sash High
High / Low
Sash Warning
Mains Fail
Fan Stop
Mute
Analogue Input Functions:-
Temperature
The airflow monitor has the following Outputs:-
Relay Output 1
Volt free relay output configurable as normally closed or normally open relays.
Relay Output 2
Volt free relay output configurable as normally closed or normally open relays.
Relay Output 3
Volt free relay output configurable as normally closed or normally open relays.
Analogue Output 1
0-10VDC retransmission of face velocity over 0-200fpm e.g. 100fpm = 5VDC.
Com Port
RS 485 to enable connection to Laptop or PC for full diagnostics, logging or setting up and
for communications to building computer system (BAS)
See section 8 for other specific information on Modbus RTU and BACnet options and settings.
Power supply
Low voltage DC power supply from Mains power adaptor.

19
Airflow Sensor
RJ12 Connection socket for the face velocity airflow sensor.
Optional Inputs
Temperature Sensor
Bespoke Temperature sensor for connection into inputs 1, 2 or 3 to give temperature display with high
and low temperature alarms.
PIR Occupancy Sensor
Auxiliary PIR used for Close Sash alarm based on Fume Hood occupancy and sash position.
Mains Fail battery unit.
Auxiliary plug in battery unit for Mains Fail alarm.
See
Menu Block Diagram
document for other specific operations and indications.

20
3. Functions & Operation