DEGA UPA III User manual

User manual
Compact controller
DEGA UPA III
Reproduction of this manual, or any part thereof, in any form, without the prior permission of
DEGA.CZ s.r.o. is prohibited.
DEGA CZ s.r.o. reserves the right to alter the specifications of the hardware and software
described in this manual at any time and without prior notice.
DEGA CZ s.r.o. bears no liable for any damage resulting from use of this device.

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Content
For your safety..................................................................................................................................................................................2
Technical data...................................................................................................................................................................................3
Operational conditions .....................................................................................................................................................................3
Product description...........................................................................................................................................................................3
Outer case ................................................................................................................................................................................4
Terminal block..........................................................................................................................................................................4
Assembling and connecting the wiring.............................................................................................................................................5
1. Assembly of the controller....................................................................................................................................................5
2. Connecting a transmitter via current loop ...........................................................................................................................5
3. Connecting a transmitter via RS485......................................................................................................................................5
Wiring installation for RS485....................................................................................................................................................5
Terminal resistor ......................................................................................................................................................................6
4. Connecting the temperature sensor, flooding sensor and lay-off button of the beeper.....................................................6
5. Connecting the visual and acoustic alarms and the emergency valve .................................................................................6
6. Selecting the supply voltage and the maximum current load ..............................................................................................6
Supply voltage 230V AC ...........................................................................................................................................................6
Supply voltage 24V DC .............................................................................................................................................................6
7. Output relay..........................................................................................................................................................................7
8. Regulating the supply voltage...............................................................................................................................................7
Controls.............................................................................................................................................................................................7
1. Panel .....................................................................................................................................................................................7
2. LCD display............................................................................................................................................................................8
3. Launch of the controller........................................................................................................................................................8
4. Basic status/alarms ...............................................................................................................................................................8
5. Malfunction...........................................................................................................................................................................9
6. Monitoring the calibraton periods........................................................................................................................................9
7. Reading the record of measured concentrations and alarms ..............................................................................................9
8. Indication of past alarms.......................................................................................................................................................9
9. Automatic adjustment of the 0 point ...................................................................................................................................9
10. Menu.................................................................................................................................................................................9
History Menu HIST .................................................................................................................................................................10
Information menu INFO .........................................................................................................................................................10
Configuration menu CONF .....................................................................................................................................................10
Controller testing menu TEST.................................................................................................................................................11
Service Menu SERV.................................................................................................................................................................11
Maintenance...................................................................................................................................................................................12
1. Operation/Maintenance .....................................................................................................................................................12
2. Replacement of the battery................................................................................................................................................12
Attachments....................................................................................................................................................................................13
1. Table of error codes............................................................................................................................................................13
General warranty terms and conditions.........................................................................................................................................14
For your safety
Beware of static electricity
Electronic components are sensitive to static electricity. Do not touch them directly - they may get damanged.
The device is intended to be installed by a trained person
The product is designed for installation only by a certified technician. The manufacturer is not liable for damages resulting
from incorrect or improper handling.
In case of malfunction, immediately unplug from the power supply
If you notice an unusual smell or smoke emitting from the product, unplug it from the power supply, battery backup and all
other attachments. Continued operation could result in injury or property damage. After disconnecting, have the device
inspected at an authorized dealer or manufacturer.

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Do not disassemble the product and ensure against it's contact with water
Contact with internal components of the product may cause an electric shock. In case of any malfuction entrust the servicing
of the product exclusively to a certified service centre. Contact with water can create a short circuit in the product and
consequent damange to property or personal injury.
Use appropriate cable types
To ensure compliance with the parameters of the product, only use cable types recommended in this guide.
Dispose of used products with respect to the environment
Dispose of them in accordance with the current legislation on environmental protection.
Technical data
Supply voltage: 230 V AC/ 40VA
24 V DC/2 A nominal, operational range 20-28 V
Cable for connecting of the transmitters:
via 4-20mA: shielded cable 3 x 1 mm (max. 1200 m), or 3 x 1,5 mm (max. 2400 m)
via RS485: shielded cable 4 x 0,8 mm (max. 1200 m) - see section “ Wiring installation for RS485“
Cable for connecting the sensors:
Temperature sensor DEGA Tc II: shielded cable 3 x 0,25 mm (max. 100 m)
Flooding DEGA Zc II: shielded cable 4 x 0,25 mm (max. 100 m)
Cable for connecting signalization a pushbutton cable 2 x 1mm
Output: USB (for PC configuration)
RS485 - protocol DEGA, or MODBUS (on request) for the host system
(PLC, PC)
10x switching relays 250 V/10 A
2x outupt for visual and acoustic alarms, max. load see chapter
„Assembling and connecting the wiring“ paragraph 6
Communication speed of RS485: 9,6 kB
Functional safety EN61508: SIL 1
Dimensions without bushings: 280x200x85 mm (WxHxD)
Weight: 1,4 kg
Capacity of the internal memory of history: 34 days at 60s recording interval
Interval record storage memory: 60 s (adjustable range 1-255 s)
Operational conditions
Ambient temperature: -20 to +85 °C
Relative humidity: 0-95 % RH
Air pressure: 86 - 108 kPa
Protection level with a cover: IP 54
Location: BE1 - non-explosive atmosphere
Product description
DEGA UPA III - The third generation compact evaluating controller is designed as a separate device used for mounting on a
wall or on distributors. It is used to supply up to 32 transmitters via RS485 and up to 8 transmitters via current loop. It
evaluates the gas leak of the transmitters in 4 levels. It is also possible to connect one flooding sensor DEGA ZC II and one
temperature sensor DEGA Tc II. The status of each transmitter is indicated on the LCD display of the controller. The controller

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is equipped with 10 pieces of freely configurable relays, 2 outputs for visual and acoustic alarms, an output for impulsive
closing of emergency valves, a USB port and a RS485 for connecting to the host system (PLC, PC with visualization)
Outer case
Cover
Bottom
Indents for
bushings
Opening handle
LCD DISPLAY
Terminal block
Terminal block relay
RE1-RE3
Terminal block relay RE4
and RE5
Terminal block
relay RE6-RE7
Trimmer for regulating the
suppy voltage 22-26V
Terminal block relay
RE8-RE10
Fuse T400mA
Auxiliary
input/output 24V
DC
Power supply terminal block
230VAC
Temperature sensor
terminal block
Acoustic alarm lay-key
terminal block
Flooding sensor
terminal block
Acoustic alarm terminal
block
Bus temrinal block #1
for digital transmitters
Bus temrinal block #0
for digital transmitters
RS485 for the host
system
Analog inputs
Optical alarm terminal
block
Emergency valve output
terminal block
Backup battery for
memory
USB connector
DegaConfig - adjustment software enabling full configuration of the controller
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Assembling and connecting the wiring
Before assembling, read the valid instalation standarts EN 60079-29-2 (Selection, instalation, use and maintenance of
detectors for combustible gases and oxygen) and EN 45544-4 (Guildelines for the selection, installation, use and maintenance
of detectors of toxic substances).
In explosive environments the electrical installation must be performed according to ČSN EN 60079-14 (Electrical instalation in
hazardours areas).
1. Assembly of the controller
a) Pull the handle on the right side of the controller to unlock and lift the cover
b) Drill the required amount of holes for bushings into the indents of the top and bottom part of the case
c) Anchor the controller on a flat surface using four 6mm fasteners
d) Connect the wiring
e) Close the cover of the case and lock the controller by using the handle
2. Connecting a transmitter via current loop
Connect one transmitter on each channel of the controller:
3. Connecting a transmitter via RS485
It is possible to connect up to 16 transmitters on each controller input, depending on their electrical distance from the
controller.
Wiring installation for RS485
Wiring must be done using bus topology and according to the RS485 principles.
Wiring must be done using bus topology and according to the RS485 principles.
Maximum number of connected transmitters per controler channel is 32 (may be less depending on the configuration of the
controller), while the total length of the connecting cable (electrical distance between the controller and the last transmitter)
should not exceed 1200 meters. The maximal amount of transmitters connected to the bus and the type of cable used,
according to the distance from the controller, is provided in the manuals of each transmitter.

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Terminal resistor
According to the RS485 specifications, the last device on the bus must be
ending with a terminating resistor 120R. Plug a jumper on the JP2
connector of the last device on the bus to include the 120R terminating
resistor. In the default configuaration the jumper connector is not
plugged
4. Connecting the temperature sensor, flooding sensor and lay-off button of the beeper
5. Connecting the visual and acoustic alarms and the emergency valve
6. Selecting the supply voltage and the maximum current load
Supply voltage 230V AC
The highest current load of the controller is 1,4A. This current serves to power the connected transmitters and the visual and
acoustic alarms, which are connected to the terminal blocks „LIGHT_SIG“ and „SOUND_SIG“.
Example: There are 4 transmitters connected to the controller with a consuption of 60 mA each. The remaining 1,16 A (I=1400-4x60) are
used to supply the visual and acoustic alarms.
Supply voltage 24V DC
The consuption of the controler's electronics is 300mA. Maximal current on terminal blocks „+24V IN/OUT“ is 10A. Maximal
current load on each output on terminal blocks „LIGHT_SIG“ and „SOUND_SIG“ is 4A.

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Example: There are 4 transmitters connected to the controller with a consuption of 60 mA each. The controller has a consuption of 300mA.
The remaining 7,46 A (I=8000-300-4x60) are used to supply the visual and acoustic alarms.
Information on the constuption of each transmitters and components of the visual and acoustic alarms is given in the
respective manuals.
Warning: never connect the supply voltage 24V and 230V simultaneously
7. Output relay
Each relay can by default be configured to activate on any number and any combination of events:
Transmitter: 4 levels of gas leek alarms, PEL, STEL, transmitters malfunction
Controller: 2 levels of temperature, flooding, controller malfunction, 2 levels of exceeded temperature, flooding indication
Relays can after activations be configured for the following output functions: normally closed, normally open, cycling of
open/close, automatic deativation of deactivatable outputs after a certain time or after pressing a button.
Specific configurations of the relays are given in the configuration protocol provided to the controller
8. Regulating the supply voltage
Pomocí trimru můžeme regulovat výstupní napětí zdroje v rozsahu 22-26V.
V případě že jsou snímače připojeny na velkou vzdálenost, může být pro správnou funkci nutné zvýšit
napájecí napětí.
Controls
The control panel is equipped with a segmented LCD display and can be controlled using the LEFT, RIGHT and ENTER buttons.
In Basic mode the controller displays the concentration and the states of the configured channels. Digital channels
(transmitters connected via RS485) are numbered 1 to 32, and analog channels (connected via current loop) are in the range
of 41 to 48. The controller sequentially switches between the configured channels (basic interval 3s). For a longer display of a
specific channel, briefly press ENTER (the channel remains displayed for 30s). The ENTER button also serves as a confirmation
key for switching-off of the off-switchable outputs of the controller. The respective output remains in the defaul state for as
long as there is no fading of the event that triggered it (concentration drop, disappearance of the error code).
1. Panel
LCD display
Indication of proper
operation of the
controller
Gas leek
LEFT button (move through
menus, switch between
transmitters)
RIGHT button (move
through menus, switch
between transmitter)
ENTER button
(unblocking of the
acoustic alarms and
thelatch function,
confirm)
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2. LCD display
Time
Date
Secondary display
Warning: calibration
required
RS485 address of the
current transmitter
„Channel“ of the
current transmitter
Interrupted RS485
bus indication
Transmitter calibration
via RS485
Marker (selecting a
transmitter in the
menu)
Malfunction of the
controller or a
connected transmitter
Exceeding the
critical temperature
level
Indication of an alarm
record in the history
Flooding indication
Exceeding the time-
weigted avarage
Alarm PEL - long-
term exposure limit
Alarm STEL - short-
term exposure limit
Gas leek alarm
Type of detected gas /
substance
Measured units
Main segments of
the display,
currently measured
concentration
3. Launch of the controller
After turning on the power supply, the whole LCD Display lights up and loads the highest meassured concentration, which
remains on the display for cca 3s. After that the controller goes into preheating mode. The main LCD displays a countdown to
the end of preheating and the secondary segments display the inscription „HEATING“.
4. Basic status/alarms
The controller displays the concentration on 4 main segments. To it's right, units and the detected gas are being displayed. The
8 auxiliary segments display the location or an evnetual sensor malfunction. If the displayed channel is digital (1 to
32), the adress of the connected sensor is also displayed. Connected analog transmitters have a range
of 41 to 48. The controller sequentially switches the configured channels in a 3s interval. If we want to select a transmitter
manually, we can do so with the buttons LEFT and RIGHT.
The status of the sensor bundled with an output relais (alarms, time-weigted avarages, statuses of temperature sensors and
floodings, malfunctions) is displayed in the right part of the LCD.
In case of an increased concentration, the LED ALARM starts shining and the controller switches to the channel, which
meansured this concentration. After 30s the channels will again be sequentially switched.
The latch function –catalytic and semiconducter sensors can, when exceeding the measuring range, indicate a lower
measured value than it really is. If the measured concentration of these sensors exceed 100% of the lower explosion level, the
latch will activate. Even after a drop of the measured concentration, the transmitter will still be in it's highest alarm level. The
detection area must be physically checked by an independent transmitter and after that the controller can be unblocked by
pressing the ENTER button.
The ENTER button also serves as a confirmation button for the acoustic alarm.
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5. Malfunction
If a malfunction should occur, the LCD displays the measured values, an error code and also a key symbol . The
meaning of individual error codes can be found in the attachments.
6. Monitoring the calibraton periods
After 12 months since the last calibration (Max. calibration interval) an inscription starts flashing on the LCD
display. The connected transmitters must be calibrated immediately.
7. Reading the record of measured concentrations and alarms
The controller periodically after 60s stores the current detected concentration into it's internal memory. The internal memory
retains data from the last 49 000 measurements (cca 34 days). In order to read this information, the program DegaConfig is
required. Refer to the DegaConfig program instruction
8. Indication of past alarms
The controller is equipped with an indication of alarms that have already faded. If such an alarm occurred, the icon is
displayed. To view these alarms, enter the menu HIST HILA, where the date and time since the highest measured alarm
since reseting HIST _RST is displayed for each transmitter. After viewing the history it's possible to reset the counter
throught HIST _RST and the icon disappears.
9. Automatic adjustment of the 0 point
The connected digital transmitters have an inner diagnostic, which detects whether or not the 0 point is in disbalance. If so, an
automatic adjustment will take place and the controller indicates this with the icon .
10. Menu
Enter the menu by pressing the ENTER button and hold it for cca 5s. The main segments of the LCD display the menu
functions. Use the arrows to move from one entry to another and press ENTER for selecting an entry. The last entry is always
EXIT, which returns you to a higher menu level. The menu stucture is as follows:
↓
←
↑
submenu
HIST

INFO

CONF

TEST

SERV

EXIT
↓
1
HI1H
←
NCAL
←
TMP1
←
RELE
←
SERV
←
↓
↑
↓
↑
↓
↑
↓
↑
↓
↑
2
HI8H
LCAL
TMP2
TRAN
SERV
↓
↓
↓
↓
↓
3
HI12
TEMP
ALM1
_RST
EXIT
↓
↓
↓
↓

4
HI24
ADDR
ALM2
EXIT

↓
↓
↓
5
HI2D
EXIT

ALM3
↓
↓
6
HI7D
ALM4
↓
↓
7
HIAL
CALI
↓
↓
8
HILA
EXIT

↓
9
_RST
↓
EXIT


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History Menu HIST
HI1
Displays the alarm history for the last hour
HI8
Displays the alarm history for the last 8 hours
HI12
Displays the alarm history for the last 12 hours
HI24
Displays the alarm history for the last 24 hours
HI2D
Displays the alarm history for the last 2 days
HI7D
Displays the alarm history for the last week
HIAL
Displays the alarm history for the entire memory (cca 34 days)
HILA
Displays the alarm history since the last reset of the entry _RST
_RST
Resets the time from which „HILA“ starts counting
EXIT
Returns to a higher menu level
This menu displays the highest measured concentrations in a selected time interval for each channel. There is a total of 8
intervals: - the last 1h (HI1H), 8h (HI8H), 12h (HI12H), 24h (HI24), 2 days (HI2D), 7 days, the entire memory (cca 34 days) and
the interval since the last reset of „_RST“. Selecting an entry will perform a custom search in the memory for the selected
channel. If during the whole interval the concentration hasn't changed and remained on the minimal value, „9999“ will be
displayed instead of the date and time. Switch between the channel by using the arrows and use ENTER to return back to
selecting a time interval.
The entry _RST serves for setting the time interval for the user alarm. If since the last change of the entry _RST an alarm
occurred at one of the transmitters, the basic status of the controller displays the segment „H“. At the entry, the date and time
since evaluation of „HILA“ is displayed. Pressing ENTER on this entry sets the interval to the current date and time a the
segment H disappears from the basic status. Press ENTER again to return the the history menu.
Note.: In case of equipping a larger quantity of transmitters, the loading of the history may take a few seconds.
Information menu INFO
NCAL
Displays the date of the next transmitter calibration
LCAL
Displays the date of the calibration
TEMP
Displays the temperature of the DEGA Tc II sensor
ADDR
Displays the controller address on the RS485 HOST bus
EXIT
Returns to a higher menu level
For entries „LCAL“ and „NCAL“ use the arrows to switch between individual transmitters. Moving to „NCAL“displays the date
and time of the next calibration for the selected sensor, which is connected via RS485. In addition, the main display shows the
amount of hours remaining before the next calibration. In the same way, the entry LCAL shows the date and time of the last
calibration for the selected channel. The main display again shows the amount of hours passed since the last calibration. This
is a simple amount of hours, not the amount of hours, in which the sensor has been in operation.
The entry TEMP displays the current temperature from the temperature sensor, if it'configured and connected to the
controller.
The entry ADDR displays the controller address on the RS485HOST bus.
Configuration menu CONF
To enter the menu, type in the password 0004. Use the arrows to change the value and use ENTER to move from right to left.
Pressing enter in the order of units enters the menu. Typing in a wrong password will return us to the measurement mode.
TMP1
Setting the critical temperature level 1
TMP2
Setting the critical temperature level 2
ALM1
Setting the 1. level of gas leek alarm
ALM2
Setting the 2. level of gas leek alarm
ALM3
Setting the 3. level of gas leek alarm
ALM4
Setting the 4. level of gas leek alarm
CALI
Calibration of the digital transmitters
EXIT
Returns to a higher menu level