mecair DPS Instruction Manual

Digital differential Pressure switch
Instruction manual
Model “DPS”
Instruction manual
1
DIGITAL DIFFERENTIAL PRESSURE SWITCH
MODEL “DPS”
INDEX
1.
TECHNICAL DATA TABLE
Page 1
2.
ELECTRICAL CONNECTIONS Page 2
3.
FUSES Page 3
4.
PNEUMATIC CONNECTIONS Page 3
5.
BOARD PANELS AND CONTROLS Page 4
6.
START UP Page 4
7.
8.
CONFIGURATION 4 -20 mA
Page 5 Page 7
9.
TROUBLESHOOTING Page 7
ATTENTION: before using the product, carefully read this instruction manual in order to acquire a sufficient knowledge of the product itself.
1.
TECHNICAL DATA TABLE
Technical data
Power supply 115 - 230 V AC 50/60 Hz ±10%
Upon request 24 – 48 V 50/60 Hz AC ±10%
Fuse main 230 V = 100 mA T ; 115 V = 250 mA T
24 V = 630 mA T; 48 V = 315 mA T
Temperature Storage -20°C/+80°C
Operation -10°C/+50°C Power 3,5 W @ 230 V Measuring range 0 – 10 kPa Unit kPa; mmH2O; “H2O; mBAR; Inc
“H2O = measurement in inches with decimals notation
Inc = measurement in inches with English notation ( 3” 3/8 ) Linearity ± 0,25% of Full Scale Available languages Italian; English; French; German; Spanish Output 4-20mA Active or passive, selection through a jumper
Supplied in active mode Relays contacts 5 A 230 V non inductive Case protection Box Version DIN Version from panel board
IP64
IP54 o IP65 with front transparent cover Dimensions Box Version DIN Version from panel board
150 X 225 h 80
140 X 130 h 70 Weight Box Version DIN Version from panel board
1,100 Kg
0,750 Kg
Do not expose directly to the sun in order to avoid uncontrolled temperatures to
the circuits.
Protect against rain, water infiltrations and moist.
Do not install on vibrating walls.
Use only cable gland with
to the cable used )
It is compulsory to install downstream the power supply line a circuit breaker
located closed to it and identified as the knife switch of the device
Before opening the unit, be
disconnected
Do not attempt to repair the instrument, but contact MECAIR!
All the wiring must be carried out by
electric shock or fire.
All electrical connections must follow different paths vs all the other uses.
WEEE
This instrument must be disposed of as special industrial waste according to the
existing norms
N.B.:
The numbers and the letters within square brackets []
drawings.
2.
ELECTRICAL CONNECTIONS
It is compulsory to install downstream the power supply line a circuit breaker located closed to it and
identified as the knife switch of the device
1)
Connect the power supply to the terminal
Neutral 115 V AC 50/60 Hz 230 V AC 50/60 Hz
2) Connect
any equipment to the set relay terminal
Normallly open Normally closed Common
3) Connect any audio/
visible signals to the alarm relay terminal
Normallly open Normally closed Common
4) Output 4-20mA
[ G
]
+
-
2
protection grade IP65 and of proper size ( according
sure that
unit is switched off
, including connection to alarm / signal relays .
skilled people
indicate the positions on the
[ C ]
[ D ]
[ E ]
(flashing light, siren
and wires on clamps
to prevent any risks of
)
3
A
B
F
C
G
D
E
N.O.
N.C.
COM
N.O.
N.C.
COM
N.C.
4-20mA+
4-20mA-
0V
115VAC
230VAC
Contact shown are without power supply
3.
FUSES
Name Dimensions Value Type Drawing Description
F1 5 x 20 100 mA T
[ A ]
Supply mains 230 V
F2 5 x 20 250 mA T
[ B ]
Supply mains 115 V
F1 5 x 20 630 mA T
[ A ]
Supply mains 24 V
F2 5 x 20 315 mA T
[ B ]
Supply mains 48 V
In case of replacement, it is compulsory to respect the value indicated on the table
4.
PNEUMATIC CONNECTIONS
The instruments is supplied with two filtering taps to be used to connect the instrument and the areas to be measured. Use a 4/6 rilsan hose.
4
5.
BOARD PANELS AND CONTROLS
1 Display Displays Delta-P value, the setting and the messages 2 Enter key Allows to enter the menu items, and to confirm data after modifications 3 + key
Increases the datum to be modified or changes options in the menu items. Displays
the alarm messages
4 - key Decreases the datum to be modified or
changes options in the menu items. Cancels
the alarm messages 5 Esc key Allows to exit the menu pages 6 Set Led Switches on when the set value “Set” is exceeded 7 Alarm Led Switches on in case of alarm.
Possible alarms are:
the set “Alarm” value is exceeded
sensor failure
invalid configuration data 8 Model DP Super 5 languages
5 units Min-max Delta-P Set 1 alarm set Hour counter
6.
START UP
Connect the instrument to the power supply.
ENTERESC
5
When switching the unit on, the display [ 1 ] indicates the model followed by the equipment version; after 3 seconds, it will display the pressure value.
7.
CONFIGURATION
To enter the configuration menu, press “Enter” key [ 2 ] Press “+” key [ 3 ] to move to the following menu, “-“ [ 4 ] to move to the previous menu. Press “Esc” key [ 5 ] to go back to the pressure value display.
Language selection Select one of the 5 programmed languages
Press “Enter” [ 2 ] to display the selected language By pressing either “+” [ 3 ] or “-“ [ 4 ] it is possible to select a language among the 5 available ones (ITALIAN; ENGLISH; FRANCAIS; DEUTSCH; ESPANOL) Press “Enter” [ 2 ] to go back to the menu after changing the setting. Press “Esc” [ 5 ] to go back to the pressure value display
Unit Select one of the 5 available units
Press “Enter” [ 2 ] to display the selected unit By pressing either “+” [ 3 ] or “-“ [ 4 ] it is possible to select a unit among the 5 available ones (kPa; mmH2O; “H2O; mBAR; inc) Press “Enter” [ 2 ] to go back to the menu after changing the setting. Press “Esc” [ 5 ] to go back to the pressure value display
Minimum value input Minimum value below which the Set relay re-opens. Led [ 6 ] off
Press “Enter” [ 2 ] to display the current value By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased (an extended pressure increases the parameter switch speed) Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
Maximum value input Maximum value above which the Set relay closes. Led [ 6 ] on
Press “Enter” [ 2 ] to display the current value By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased (an extended pressure increases the parameter switch speed) Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
Alarm value input Value above which the alarm relay closes. Led [ 7 ] on
Press “Enter” [ 2 ] to display the current value By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased (an extended pressure increases the parameter switch speed) Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
Pressure delay
from 0 to 25 Sec with second decimals adjustment
Exceeding switching limit minimum time (pressure fluctuations for times shorter than that are ignored )
Press “Enter” [ 2 ] to display the current value By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased (an extended pressure increases the parameter switch speed) Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
6
4-20 mA Full Scale Value from 1 to 10 that allows to select the maximum pressure value
corresponding to 20 mA
Press “Enter” [ 2 ] to display the current value By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased (an extended pressure increases the parameter switch speed) Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
4 mA adjustment 4 mA calibration
Press “Enter” [ 2 ] to display the current value of the adjusting datum, the 4-20 mA output emits a signal corresponding to 4 mA. By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased and therefore the output value is changed; adjust till the displayed value on the external instrument indicates the correct value 4 mA Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
20 mA adjustment 20 mA calibration
Press “Enter” [ 2 ] to display the current value of the adjusting datum, the 4-20 mA output emits a signal corresponding to 20 mA. By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased and therefore the output value is changed; adjust till the displayed value on the external instrument indicates the correct value 20 mA Press “Enter” [ 2 ] to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
Zero pressure Sensor Zero setting
Disconnect the hoses from the filtering taps before carrying out the Zero setting. Press “Enter” [ 2 ] to display the current pressure value By pressing “+” [ 3 ] the sensor is set to Zero and the Zero value is saved Press “Enter” [ 2 to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display Connect the hoses to the filtering taps
LCD Contrast To ad just the display contrast (0-63)
Press “Enter” [ 2 ] to display the current value of the parameter that adjusts the display contrast (0-63) By pressing either “+” [ 3 ] or “-“ [ 4 ] the parameter value is either increased or decreased and the adjustment effects are visible on the display Press “Enter” [ 2 to go back to the parameter selection menu after changing the parameter value itself. Press “Esc” [ 5 ] to go back to the pressure value display
Hour counter xxxxx Displays the operating hours (Max 99.999; cannot be modified)
Press “Esc” [ 5 ] to go back to the pressure value display
7
8.
4 -20 mA
It is possibile to select the 4-20 output in either active or passive modes. Active: does not requie any external feeder. Passive: it requires an external power supply between 18 / 24 V DC. Move the two jumpers on the 4-20mA card [ F ] to select either the active or the passive mode. The instrument is supplied in active mode.
9.
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
The display does not switch on
Lack of power supply Check fuses F1
[ A ]
or F2
[ B ]
Check mains connections [ C ]
Pressure value is not correct
Disconnect the hoses from the pressure taps. If the value is not zero, carry out a Zero setting.
Reset the pressure value, refer to the “Zero Pressure” item in the menu
The value transmitted by the 4-20 mA is not correct or is lacking
Wrong parameter adjustments
Wrong active/passive mode selection
Input correct parameters, see menu: Full Scale 4-20 4 mA adjustment 20 mA adjustment Check the jumper position on the 4-20 mA card [ F ]
8
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