Duomo KS23 Trio Labstart User manual

Touchpad control panel suitable for use
with G621 Gas Safestart
Unique, programmable access code
Eliminates problems of lost keys
Visually displays failure type
Automatically isolates gas supply at low
pressure
Checks downstream pipework before
initiating gas supply
IGEM/UP/11 Edition 2 compliant
Application
IGEM/UP/11 Gas Installations for Educational
Establishments.
“In the event of a shutdown occurring, the system shall
require manual resetting to take place such that an
automatic check is performed to prove that all
downstream gas isolation valves are closed.”
In accordance with best practice as described in
Building Bulletin 80 (revised 2004) Science
Accommodation in Secondary Schools – A design
Guide. Published by Schools Building and Design Unit
(SBDU). – “Services. All services should have a master
control panel, which should be located near the main
teaching (demonstration position). This allows the
teacher to control access to services as required and
also to shut off any or all in the event of an accident”
In accordance with these requirements, the Duomo Trio
Labstart securely isolates and safely re-establishes the
gas supply to any area which relies on manual isolation
of gas outlets.
The Duomo Trio Labstart is used in schools, colleges and
scientific research laboratories throughout Europe.
Trio Labstart protects personnel and property from
damage caused by gas leaks. Inadvertently or
intentionally leaving manual gas taps open is
dangerous,even when the gas supply is turned off.
If the supply is reinstated with taps open an undetected
gas leak will exist. The Trio Labstart prevents this by
checking the integrity of the downstream pipe work
before allowing the main gas valve to be opened.
The control panel ensures that only authorized,
competent personnel are able to initiate gas supply,
thus preventing vandalism and misuse of gas
equipment.
If the supply gas pressure drops below a preset
threshold the system will automatically operate the low
pressure cut off and the gas will be safely isolated.
Carefully read these instructions
prior to installation. Keep this
pamphlet for future reference.
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KS23 Trio Labstart for G621

w: www.duomo.co.uk - e: [e-mail] - t: 01905 797989 - f: 01905 774296 | ©Duomo (UK) Ltd. 2007
Operation
Warranties
1. Connect the Trio Labstart to a power supply. A self-
test procedure will run. If a failure is detected the green
POWER light will blink and local buzzer will sound (1,5
Hz).
2. Enter numeric password (1 to 8 characters in length).
At each press the active key will turn to red and a short
tone will confirm the operation. Push the to confirm
the code and run the proving test.
(NOTE: In case of incorrect password the buzzer will
make a single long tone (1,5 sec). If the password
matches the buzzer will make 3 short tones.
Press the at anytime to halt the operation).
3. During the proving stage, the GAS light will flash until
the gas test is completed.
4. A failure on gas will enter an alarm condition, the light
will blink and an audible alarm will sound.The gas valve
will be turned off and the system will require a manual
reset once the problem has been resolved.
5. At any time it is possible to close the GAS Valve and
reach a standby condition by pressing the STOP button.
Duomo UK Ltd guarantees for two years from the date
of manufacture of its product to replace any product or
part thereof which is found to be defective from
manufacture or material failure. Duomo UK Ltd makes
no warranty of merchantability or any other warranty
express or implied. In no event shall Duomo UK Ltd be
liable for consequential or special damages of any
nature which may arise from incorrect application and
installation of this product.
When Duomo UK Ltd products are combined with
equipment manufactured by others and/or integrated
into systems designed or manufactured by others, the
Duomo UK Ltd warranty pertains only to Duomo UK Ltd
products and not to any other equipment or to the
combined system or its overall performance.
Service Isolation
To enter service isolation mode while in a run status,
press the . Buttons 1, 2 and 3 will then turn red and
the POWER, WATER and GAS lights will flash. Pressing 1,
2 or 3 will turn each of these services on and off. If a
service is off, its light will go out.To finish, press the .
Password Setup*
To enter password configuration mode, press and hold
keys 1, 6 and 7 together for 5 seconds until the numeric
keyboard backlight turns to red.
2. Enter the numeric password you want to use (1 to 8
characters in length). At each press the active key will
turn off momentarily. Press the to confirm the code.
3. Press the CANCEL key to exit configuration mode at
any time, leaving the password unchanged.
*Default code is 1, 2, 3, 4.
Keypad & Internals
STOP
1 2 3
45 6
78 9
0
POWER WATER GAS
78910111213 14 15 16 17 18
E E Ph N GND 1 2 3 4 5 6
Input
terminal
Output
terminal
Air light
Enter key Abort key
Gas light
Power on
Stop button
Fuse (3A)
Keypad (Fig. 1)

Wiring Diagrams
A Typical electrical connection for a science laboratory.The Labstart can be used to safely start Gas,Water and Power (Fig. 2)
Timed Power-Off Configuration
The Trio Labstart can be programmed, during initial
commissioning, to turn off automatically. The ON period
can be set in 1 hour increments up to 12 hours. When
this period has elapsed the Trio Labstart will
automatically turn itself off. This means that the manual
reset test must be completed before the gas and other
services are safely re-introduced to the laboratory.
1.Trio LabStart in a run condition with all outputs active.
2. Hold keys 3, 4 and 9 at the same time for 5 seconds.
Press the Enter key ( ).
3. Select the number of hours required as ON TIME. Press
the Enter key ( ).
4. The selected time will flash once in red and the Trio
will return to normal run display.
5. After the selected time has elapsed the Trio will
automatically shut off.
6. This time will be the default ‘ON TIME’ until the above
procedure is used to change it.
NOTE: By default this function is not set. Therefore the
unit will not auto power-off until you configure it to do
so. To revert back to the default at any time, folllow the
instructions and select '0' at step3.
P
INPUT TERMINAL PLUG
OUTPUT TERMINAL PLUG G621 WEEP BYPASS
ASSEMBLY
TRIO GAS SAFESTART KS23
AUTOMATIC CONTROL
OUTPUTS
3A MAX 250 Vac
PF - 100%
VOLT FREE
STATUS RELAYS
RUN
POWER
FAIL
INPUTS 24V dc 10mA MAX.
EXTERNAL LIMITS
(EMERGENCY STOPS,FIRE ALARM ETC.)
GAS - WEEP
VALVE
GAS - PRESSURE
SWITCH
GAS - MAIN
VALVE
230V ac POWER SUPPLY
Ph
N
2
3
1
N
4
L
L
N
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
E
E
Ph
N
GND
L
N
WATER VALVE
(IF FITTED)
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KS23 dimensions (Fig. 4)
Terminal Block
Specification Dimensions
Supply voltage 230 V ±15%
Frequency 50/60 Hz
Power consumption 7 VA max
Max out switching voltage 250 Vac / 100 Vdc
Max out current (all relays) 3 A
Max out breaking capacity 2500 VA
Out contact operations > 100 x 103
External limit contact > 3A @ 250Vac
Line fuse 5x20mm SLOWBLOW 3 A
Operating temperature 0 to 60 °C
Storage temperature -20 to 80 °C
Gasket silicon -40 to 120°C
Relative humidity Also condensing 90 %
max
Enclosure ABS/FR -40 to 80°C
halogen free
Dimension 200x110x60 mm
Colour Light grey RAL 7035
Protection class (EN69529) IP66
Flame retardant UL94 V-0
Mounting position Any
Weight <1Kg max
G621 Gas Safestart assembly 50 mbar
max operating pressure
E - External limit/interlock 3 - N/A 12 - Main gas valve (Neutral)
(Out) 4 - N/A 13 - Run SPST contact
E - External limit/interlock 5 - Gas pressure switch (Out) 14 - Run SPST contact
(Return) 6 - Gas pressure switch (Return) 15 - Failure SPST contact
Ph - Power supply phase 7 - Water valve (Phase) 16 - Failure SPST contact
N - Power supply neutral 8 - Water valve (Neutral) 17 - Power on SPST contact
GND - Protection ground 9 - Weep gas valve (Phase) 18 - Power on SPST contact
1 - N/A 10 - Weep gas valve (Neutral)
2 - N/A 11 - Main gas valve (Phase)
Terminal block layouts (Fig. 3)
60
110
200
54
179
123456EEPhN
GND
11 12 13 14 15 16 17 1878910
Main
Run PowerFail
Weep
Ext
Lim Power Supply
N
Water
NN
Gas
Pressure
w: www.duomo.co.uk - e: [e-mail] - t: 01905 797989 - f: 01905 774296 | ©Duomo (UK) Ltd.2007