Technical Data Sheet
Pressure • Temperature • Humidity • Air Velocity • Airflow • Sound level
Part number
To order, just add the range code to complete the part number :
Measuring range
1 -500 to +1000 Pa
2 -500 to +1000 mmH O
3 -250 to +500 mbar
4 -1000 to +2000 mbar
2
w
w
e
e
N
Manostats (pressure switches)
N
PST
• Measuring ranges from -500 / +1000 Pa to -1000 / + 2000 mbar
• RCR relay output 3A/230 Vac. Power supply 24 Vac/Vdc
• Visual alarm, red LED in front
• ABS IP65 housing, with display
• Quick and easy mounting with the “1/4 turn” system with wall-mount plate
Features of the transmitter
Pressure
Working principle : a piezoresistive sensitive element creates a proportional
voltage from the pressure applied on the sensor.
Measuring range............................see “Part number”
Unit of measurement .....................Pa, mmH2O, mbar, inWG, mmHG (PST-1 and PST-2)
mbar, inWG, mmHG, KPa, PSI (PST-3 and PST-4)
Accuracy * ......................................±2% of reading ± 3 Pa (PST-1)
±2% of reading ± 3 mmH O (PST-2)
±2% of reading ± 3 mbar (PST-3 and PST-4)
Response time ...............................0,3 s
Resolution .............1 Pa - 0,1 mmH O - 0,01 mbar - 0,01 inWG - 0,01 mmHG (PST-1 and PST-2)
1 mbar - 0,1 inWG - 1 mmHG - 0,1 KPa - 0,1 PSI (PST-3 and PST-4)
Autozero.........................................manual with push-button
Type of fluid ....................................air and neutral gases
Overpressure tolerated .................25000 Pa (PST-1), 7000 mmH O (PST-2),
2
1400 mbar (PST-3), 3000 mbar (PST-4).
2
2
PST-
Example : PST-3 corresponds to a PST manostat with measuring
range from -250 to + 500 mbar.
Dimensions of the housing
(including the wall-mount plate)
100 mm
93 mm
42 mm
Features of the housing
Housing .........................................ABS
Fire-proof classification ...............HB as per UL94
Dimensions ..................................see drawing
Protection .....................................IP65
Display ...........................................5-digit LCD. Dimensions 50 x 15 mm
Height of the digits .......................10 mm
Connections ..................................barbed fittings Ø 6,2 mm (PST-1 and PST-2)
compression fittings Ø 4 x 6 mm (PST-3 and PST-4)
Cable grip ......................................for cable Ø 7 mm max.
Weight............................................145 g
Technical specifications
Output............................................1 RCR relay 3 A/230 Vac
Relay and alarm status..................red LED in front
Set point.........................................1 configurable set point
Power supply.................................24 Vac/Vdc ±10%
Consumption ................................2 VA
Electro-magnetical compatibility ......EN 61326
Electrical connection Screw terminal block for cables Ø1.5 mm² max.
Communication to PC................... Kimo RS 232 cable
Working temperature ...................0 to +50°C
Storage temperature.....................-10 to +70°C
Environment..................................air and neutral gases
...................
*All the accuracies indicated in this technical datasheet were stated in laboratory conditions, and can be guaranted for
measurements carried out In the same conditions, or carried out with calibration compensation.
Av. del Libertador 2221 (1636) Olivos - Buenos Aires.
Líneas rotativas: (5411) 5353-0260
E-mail:
Home Page: www.airqualitysrl.com.ar
info@airqualitysrl.com.ar
Connection
f
Connection to PC via
e
LCC 100 software
Set point setting button
+ autozero
d
DIP switch
a
b
a
Pressure
connection
(barbed fittings shown)
c
Cable grip
Relay
terminal block
b
Power supply
terminal block
b
c
Electrical connections - as per norm NFC15-100
This connection must be made by a qualified technician. To make the connection, the transmitter must not be energized.
!
Vac
Relay
terminal
block
Power
supply
terminal block
NC
COM
NO
Vdc
GND
or
+
-
-
+
Power supply
24 Vdc
or
Vac
Vac
Vac
~
~
Relay
NC..................Normally closed
COM ..............Common
NO .................Normally open
Power supply
Vdc .........direct voltage
GND .......ground
or
Vac.........alternative voltage (phase)
Vac.........alternative voltage (neutral)
Cable grip : to insert the cable, it is required to
slightly cut the rubber.
~ ~
Power supply
24 Vac
Class II
PhaseNeutral
Power supply
24 Vac
Autozero
push button
To make an autozero, disconnect the 2 pressure connections and briefly press on the push-button.
The following message will display :
. o
A
Configuration
Configuration of measuring units, set points, can be carried out different ways : DIP switch, push-button and/or software
(connections , and on drawing “connection”).
e
d
f
Configuration of measuring units by DIP switch
To configure the transmitter, please unscrew the 2 screws from the housing,
and then open it.
Electronic
board
d
DIP switch
Identification of the DIP switches
on the electronic board
1
2
3
}
1 2 3 4
4
DIP
switch 1
On-off switch
switch 2
Setting of units
DIP
Inactive
To configure the transmitter, it must not be
energized. Then, you can make the settings
required, thanks to the DIP switches (as shown
on the drawing beside). When the transmitter is
configured, you can power it up.
!
Caution !
Please follow carefully the combinations beside with the
DIP switch.
If the combination is wrongly done, the following message will
appear on the display of the transmitter “CONF ERROR”.
In that case, you will have to unplug the transmitter, replace the
DIP switches correctly, and then power the transmitter up.
2
• Setting of units
To set the measuring unit, please set the on-off
switches 2, 3 and 4 of the units, as shown beside.
Configurations
Combinations
PST-1 and PST-2
PST-3 and PST-4
mmH2O inWG mmHG PSI
Pa mbar KPa
1
2
3
4
1
2
3
4
X X X X X
1
2
3
4
1
2
3
4
X X X X X
1
2
3
4
1
2
3
4
1
2
3
4
Set points configuration with the push-button
Power the transmitter up : it will then display its current configuration.
To modify the configuration, please proceed as follows :
Remove the 2 screws from the housing and open it.
The settings are done with the button located on the electronic board
Set point
configuration
button
Electronic
board
(see photo beside).
Principle :
- By pressing on this button for more than 3 seconds, you can validate the setting and go to the next setting.
- By pressing quickly on this button, you can increment a value and scroll down the different options or values.
This button enables :
1- to activate/deactivate an alarm (set point)
AL.O
AL.OFF
2- to program the action of the alarm (rising/falling/regulation action)
3- to set the set point value
4- to set the time-delay (temporisation)
0000.0
00.SEC
To set the different options :
1- Activating/deactivating the alarm :
Co F.
After pressing the set point configuration button for more than 3 seconds, will be displayed, then or
AL.OFF
Afterwards, by briefly pressing on this button, you can switch between (alarm on) and (alarm off).
To validate your choice, press again for 3 seconds. If you chose , then you will exit the configuration mode and
switch back to the measurement mode. If you chose , you will move to the next parameter.
(depending on the last configuration of the transmitter).
AL.O
AL.OFF
AL.O
AL.ON AL.OFF
AL.OFF
AL.OFF
CONF AL.ON
AL.OFF
AL.O
AL.OFF
2- Programming the action of the alarm (rising/falling/regulation action) :
Rising action (1 set point) : the alarm will activate when the measure exceeds the set point and will stop when the
measure goes below the set point.
Falling action (1 set point) : the alarm will activate when the measure goes below the set point and will stop when the
measure goes above the set point.
Regulation mode (2 set points) : the set point values will determine the action type. Two possibilities are available:
Measurement
set point 1 > set point 2
<T> <T> <T>
Measure > set point 1 ® Alarm activation
Measure < set point 2 ® Alarm stop
set point 2 £ Measure £ set point 1 ® No change
set point 1
set point 2
Time
<T>
Measurement
Alarme set
Time-delay
Measure < set point 1 ® Alarm activation
Measure > set point 2 ® Alarm stop
set point 1 £ Measure £ set point 2 ® No change
set point 2 > set point 1
<T> <T> <T>
set point 2
set point 1
Time
Press the button for 3 seconds to confirm your choice. You will then move on to the last parameter.
3- Programming the set point value :
The set point is a limit which, when being reached and/or exceeded, activates the relay and the visual red LED alarm.
The first digit will start to blink, by briefly pressing on the button, you can choose if the set point will be either positive (0) or
negative (-). Then press the button during 3 seconds to confirm your choice. The second digit will start to blink. Press the
button briefly to change the value. Then press the button during 3 seconds to confirm your choice. Repeat this sequence until
you have reached the last digit and then confirm the set point. If you selected regulation mode , you will program the
second set point.
4- Setting of the time-delay (dead band temporisation 60 sec max) :
When the set point is reached and/or exceeded, the time-delay will wait the specified time before energizing the relay, if the
set point is still reached and/or exceeded.
When the first digit starts blinking, press briefly on the button to change the value. Then press the button during 3 seconds to
confirm your choice. Repeat the process until all digits have the desired value and press the button for 3 seconds to confirm
your choice.
The programming is now done and the display switches back to the measurement mode.
3
Initialization of the transmitter
When the transmitter is powered up, it initializes and displays the digits and then its configuration including :
- 1 - the measuring range - 3 - action of the alarm (rising, falling or regulation action)
- 2 - the status of the alarm - 4 - the set point
1- The measuring range
The following message is displayed : . This is the low value of the measuring range, and its digit value : ex : .
The following message is displayed : . This is the high value of the measuring range and its digit value : ex : .
L
H.
- 5 - time-delay (dead band temporisation)
The arrow displayed (at the bottom or on the right of the screen) is relative to the unit of measurement : ex : from -500 to 1000 Pa.
0.0.0.0.0
,
- 5 0 0. .
10 00. . .
2 - The status of the alarm
When the alarm is off, the following message is displayed : .
When the alarm is on, the following message is displayed : .
• When the alarm is off, the transmitter displays which confirms
the end of initialization and that you can start the measurements .
al.off. . .
al.o.
,
• When the alarm is on, the transmitter displays the parameters relative to
the relay (set point, program of the alarm, time-delay).
4- The set point (alarm on)
This message is displayed : ex : , which means that the alarm
will be activated as soon as the measurement exceeds this value.
If you chose regulation mode , the second set point will appear.
5 - The time-delay (alarm on)
This message is displayed : .
The temporisation is in seconds (from 0 to 60 sec.).
3 - Action of the alarm (rising or falling action)
If the relay is programmed in rising action, the following message is displayed :
If the relay is programmed in falling action,
This message is displayed : ex : , which means that the alarm
If the relay is programmed in regulation mode, the following message is displayed .
the following message is displayed :
2 5 0. .
.
After having displayed the configuration, the transmitter displays
which confirms that the nitialization is finished and you can start
the measurements.
Configuration via software (with optional
LCC100 software)
An easy and friendly way to configure!
You can configure the measuring units, the set point, the time-delay....
• To access the configuration via software, you must first position the DIP switches as per the following picture
(shown beside), and then connect the cable to the transmitter (see connection drawing).
• Please refer to the user manual of the LCC 100 to make the configuration.
!
Caution !
The configuration can be made either by switch, or by software (you can not combine both solutions)
i.s e c. .
1
2
3
4
DIP
switch 1
2 5 0. .
1 2 3 4
DIP
switch 2
,
Inactive
Mounting
Installation : mount the ABS plate on the wall (this plate is supplied with the
transmitter). Drilling : Ø 6 mm, with the screws and pins supplied with the
transmitter. Insert the transmitter into the plate (see points A of the drawing
beside), by tilting it at 30°. Rotate the housing in clockwise direction until you
hear a “click” which confirms that the transmitter is correctly installed.
!
Caution !
Once the transmitter is installed and
energized, please proceed to an autozero to
guarantee the correct working of the
transmitter, whatever the position of the
transmitter is.
Maintenance
Please avoid any aggressive solvent.
Please protect the transmitter and its probes from any cleaning product
containing formol, that may be used for cleaning rooms or ducts.
Options
Power supply class 2, input 230 Vac,
output 24 Vac, ref.KIAL-100A
Configuration software LCC 100
with RS 232 connection cable
73 mm
ABS
plate
A
40 mm
7 mm
Optional accessories
Connection tubes
Connection fittings
Wall through connections
Junctions
Coupling nut
A
Ø 8 mm
68 mm
Ø 4,5 mm
50 mm
Ref. FT ang - PST - 10/06 D - We reserve the right to modify the characteristics of our products without notice.
Av. del Libertador 2221 (1636) Olivos - Buenos Aires.
Líneas rotativas: (5411) 5353-0260
E-mail: info@airqualitysrl.com.ar
Home Page: www.airqualitysrl.com.ar
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