Dräger REGARD 2400 User manual

D
de
4-Kanal Gaswarnzentrale
Gebrauchsanweisung, Seite 2 bis 27
en
Four Channel Control Unit
Instructions for Use, Page 28 to 53
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Dräger REGARD
®
2400 / 2410

28
Contents
Contents
1. For Your Safety ....................................................................................................................... 29
1.1. Safety Symbols used in this Manual...................................................................................... 29
2. Intended Use ........................................................................................................................... 30
3. Product Description ................................................................................................................ 30
4. Product Features ..................................................................................................................... 30
5. Indicating and Control Elements ...................................................................................... 31
6. Electrical Connections and Installation .......................................................................... 32
7. Dräger REGARD 2400 / 2410 and Catalytic Bead Sensors ................................... 37
8. Accessories ............................................................................................................................... 37
8.1. Installation of a Semi-Bridge Converters..............................................................................37
8.2. Polytron EC Transmitter to Dräger REGARD 2410 via a Safety Barrier ......................38
8.3. Digital Inputs............................................................................................................................... 39
8.4. RS485 Output Terminal Dräger REGARD 2400 / 2410 ...............................................39
8.5. Configuration Set Dräger REGARD 2400 / 2410 ............................................................ 39
9. I/O Module ............................................................................................................................... 40
10. Relay Module ........................................................................................................................... 41
11. The Dräger REGARD 2400 / 2410 Menu ...................................................................... 43
11.1. The Menu Flow-Chart ............................................................................................................... 43
12. Configuration .......................................................................................................................... 47
13. Maintenance.............................................................................................................................. 47
13.1. Inhibit............................................................................................................................................ 47
13.2. Adjustment of the Semi-Bridge Converter for SE Ex Sensing Heads ...........................47
13.3. Potentiometers and Test Points at the Converter ..............................................................49
14. Technical Data ........................................................................................................................ 50
15. Order List .................................................................................................................................. 53
Zulassungen / Appovals........................................................................................................ 54
Konformitätserklärung / Decaration of Conformity...................................................... 57

29
For Your Safety
1. For Your Safety
Strictly follow the Instructions for Use
Any use of the control unit requires full understanding and strict observation of these Instruc-
tions for Use. The control unit is only to be used for purposes specified here.
Maintenance
The control unit must be inspected and serviced regularly by trained service personnel. Repair
of the control unit may only be carried out by trained service personnel. We recommend that a
service contract be obtained with Dräger Safety and that all repairs also be carried out by
them. Only authentic Dräger spare parts may be used for maintenance.
Not for use in areas of explosion hazard
The control unit is neither approved nor certified for use in areas where combustible or explo-
sive gas mixtures are lightly to occur.
1.1. Safety Symbols used in this Manual
While reading this Manual, you will come across a number of warnings concerning some of
the risks and dangers you may face while using the device. These warnings contain signal
words that will alert you to the degree of hazard you may encounter.
These words, and the hazard they describe, are as follows:
Furthermore, there are more general notes which are indicated as follows:
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in physical
injury.
NOTICE
Indicates a potentially hazardous situation which, if not avoided, could result in damage to
the product.
Additional information on how to use the device.

30
Intended Use
Product Description
Product Features
2. Intended Use
The Dräger REGARD 2400 / 2410 is used to monitor combustible, toxic, and/or other gases
and to control alarm signals, display units and other devices via alarm relays.
3. Product Description
Dräger REGARD 2400 / 2410 is a freely programmable controller unit for the connection of
up to four transmitters. Gases of different types can be monitored. The unit can be operated
with 1 or 2 alarm thresholds. Depending on the version, Dräger REGARD 2400 / 2410 provi-
des up to six relays. Four of these can be set according to the customer requirements; two
relays are fixed - one for activating an acoustic alarm (e.g. horn) and one for indicating fault
conditions.
4. Product Features
— Suitable for DIN rail mounting or wall mounting
— Supply voltage 24 VDC / 110 VAC / 230 VAC
— Up to four 4...20 mA transmitter or Pellistor sensing heads
— 1 fault signal via relay
— 1 horn contact via relay
— Up to 2 alarm signals via relays
— Up to 2 freely adjustable alarm thresholds
— Latching, hysteresis or pulse outputs
— Display of current gas reading
— Test function for output relays
— Line-break and short-circuit monitoring of sensor wiring
— 1 reset button for horn and alarms
— LEDs for alarm, horn and fault
— Communication port for optional modules
— 2 digital inputs
DANGER
Dräger REGARD 2400 / 2410 must not be used and is not approved for use in areas where
flammable and explosive gas mixtures may occur. Danger of explosion!

31
Indicating and Control Elements
5. Indicating and Control Elements
●Press F2 button ➔Stop display scrolling
The following configuration applies for all measuring channels:
— One relay each for common alarm and horn
— One button for horn and alarm reset
— Alarm memory is integrated
— LEDs indicate the operating
The Dräger REGARD 2400 / 2410 provides a scrolling display.
The RS232 interface is for the configuration of the Dräger REGARD 2400 / 2410 via PC/Lap-
top.
F1 Set Inhibit Mode (see “Menu” on page 44)
F2 Hold current channel;
Watch configuration (see “Configuration-Information-Menu” on
page 46)
Reset Reset horn and alarm, leave Inhibit mode
LED Power (green) Supply voltage present
LED Horn (red) Horn
LED Error (yellow) Fault
LED A to D (red) Alarm
LED x10 (green) Multiply displayed value by10 for actual gas reading
3-pin connector Interface RS232
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18 35
117
Power
F1 F2 A
D
BC
A2
A1
x10
Channel A B C D
Horn Error
Reset
Concentration
REGARD 2410

32
Electrical Connections and Installation
6. Electrical Connections and Installation
The installation of the control unit shall be done in accordance with industrial standard fixed
cable such as NYM-J, 3 x 1.5 mm2. The supply voltage for the control unit must be equipped
with a separate fuse (maximum 1 A).
Connection Diagram Dräger REGARD 2410
The picture shows a Dräger REGARD 2410.
The supply voltage is 24 VDC.
The picture shows the unit in an unpowered condition.
When the unit is switched on, error- and alarm relays are normally energized and normally
open. The horn relay remains unchanged when switched on (factory set configuration).
All relays are freely configurable via software.
DANGER
Mains voltage (230 V, 50 Hz)
Contact with this voltage can cause serious burns or even death.
Work on electrical circuits shall only be carried out by a quallified electrician. Disconnect the
mains voltage before installation!
WARNING
The VDE regulations, the local accident-prevention regulations and these instructions for
use must be observed al all times!
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18 35
117
+ S –
+ – A B COM
+ S –
Channel BChannel A
+ S –
Channel C
+ S –
Channel D
+ D1 –
Digital
Input
Digital
Input
+ D2 –
Power supply Error Alarm 1 Alarm 2 24 V DC Horn

33
Electrical Connections and Installation
The table shows the connection on the terminals of the Dräger REGARD 2410 / 2410.
Terminal Description
124 VDC Input +24 V
20 V
3
RS485 Interface
A
4 B
5COM
6Fault norm. closed
7
8Alarm 1 norm. closed
9
10 Alarm 2 norm. closed
11
16 Horn norm. open
17
18
Channel A
+24 V
19 signal
20 0 V
21
Channel B
+24 V
22 signal
23 0 V
24
Channel C
+24 V
25 signal
26 0 V
27
Channel D
+24 V
28 signal
29 0 V
30
Digital Input
+24 V
31 D1
32 0 V
33
Digital Input
+24 V
34 D2
35 0 V

34
Electrical Connections and Installation
Connection Diagram Dräger REGARD 2400
The picture shows a Dräger REGARD 2400. The mains supply voltage is 230 VAC or
24 VDC.
The picture shows Dräger REGARD 2400 in an unpowered condition.
— When switched on, Dräger REGARD 2400´s error- and alarm relays are normally energi-
zed and contacts 8-9, 11-12, 14-15 are open. The horn relay remains unchanged when
switched on (factory set configuration).
— All relays are freely configurable via software.
Using the 24 VDC power supply input on Dräger REGARD 2400
To use the 24 VDC power supply input on the Dräger REGARD 2400 first a cable connection
inside of the unit has to be changed.
●Unscrew and remove front panel.
●Remove cable connector from the 110/230 VAC input and put it onto the 24 VDC input
terminal.
●Fix the front panel.
●Re-label the input connector terminals to "–", "NC" and "24", "VDC".
— See connection diagram on page 35.
DANGER
Mains voltage (230 V, 50 Hz)
Contact with this voltage can cause serious burns or even death.
Work on electrical circuits shall only be carried out by a quallified electrician. Disconnect the
mains voltage before installation!
WARNING
The VDE regulations, the local accident-prevention regulations and these instructions for
use must be observed al all times!
A B COM + D HU GND
Channel
C
19 20 21
Channel
D
22 23 24
Channel
A
1 2 3
Channel
B
4 5 6
7 8 9 N L 10 11 12 13 14 15 16 17 18
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Error Alarm 2 Alarm 1 Horn
optional: 0V 24VDC

35
Electrical Connections and Installation
Connection diagram Dräger REGARD 2400 Mainboard
REGARD 2400 Mainboard INTERNAL POWER SUPPLY UNIT
A B COM + D HU GND
Channel
C
19 20 21
Channel
D
22 23 24
Channel
A
1 2 3
Channel
B
4 5 6
7 8 9 N L 10 11 12 13 14 15 16 17 18
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Error Alarm 2 Alarm 1 Horn
optional: 0V 24VDC
24 V DC
Output
110/230 V AC
Input
24 V DC
Input
GND
+24 V
N
L
B1
(N)
B2
(L)

36
Electrical Connections and Installation
The table shows the connection on the terminals of the Dräger REGARD 2400.
Terminal Description with SE Ex 4...20 mA
Converter Module
1 Channel A +24 V brown
2 signal yellow
30 V black
4 Channel B +24 V brown
5 signal yellow
60 V black
7 Fault Directional Contact
8
9
10 Alarm 2 Directional Contact
11
12
13 Alarm 1 Directional Contact
14
15
16 Horn Directional Contact
17
18
19 Channel C +24 V brown
20 signal yellow
21 0 V black
22 Channel D +24 V brown
23 signal yellow
24 0 V black
GND Digital Input 0 V
HU D 2
D Digital Input 0 V
+ D1
COM RS485 Interface COM
B B
A A

37
Dräger REGARD 2400 / 2410 and Catalytic Bead Sensors
Accessories
7. Dräger REGARD 2400 / 2410 and Catalytic Bead
Sensors*
8. Accessories
8.1. Installation of a Semi-Bridge Converters
Only Dräger REGARD 2400
The catalytic sensor in the Polytron SE Ex forms one half of a Wheatstone bridge while the
converter board has to provide the second half of this bridge. Therefore it is necessary to use
a semi-bridge converter (Part No. SC00016), if one or more Polytron SE Ex sensing heads are
connected to a Dräger REGARD 2400. Thus the converter powers the sensor and converts
the semi-bridge signal into a 4...20 mA signal, suitable for internal processing within the Drä-
ger REGARD 2400.
Procedure:
●Switch off the supply voltage.
●Remove the short-circuit strap and insert the converter.
IMPORTANT NOTICE:
If a Dräger REGARD 2400 or Dräger REGARD 2410 should be connected to a catalytic
bead sensor a semi bridge converter has to be used! There are 2 different converters that
could be used:
SC00016 internal converter for Dräger REGARD 2400
3604655 external converter for both versions (exchange for 3603560)
* (Polytron SE Ex sensors)
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Channel D
Channel C
Channel B
Channel A

38
Accessories
8.2. Polytron EC* Transmitter to Dräger REGARD 2410 via a Safety
Barrier
Example for Connection:
When using Safety Barriers from other suppliers, it is recommended that you refer to the
Installation and Operating manual of the specific Safety Barrier being used.
* EC Transmitter: A transmitter for electrochemical sensors for the detection of toxic gases or oxygen.
00733025_01_en.eps
~
Polytron
Ex Area
230 VAC
Dräger REGARD 24xx
24 VDC
Safe Area
GND
+
4...20mA
GND
Safety Barrier
e.g. Stahl 9160/13-11-11
7
9
1
2
12
10
A
B
4...20 mA Input
+
–

39
Accessories
8.3. Digital Inputs
On the Dräger REGARD 2400 and Dräger REGARD 2410 there are terminals for 2 digital
inputs (see tables and connection diagrams on page 32 to page 36). For example it is possi-
ble to connect an external horn reset to one of these inputs.
8.4. RS485 Output Terminal Dräger REGARD 2400 / 2410
On the Dräger REGARD 2400 and Dräger REGARD 2410 there are 3 contacts for the com-
munication with optional modules (for Dräger REGARD 2400 see connection diagram
page 32, for Dräger REGARD 2410 see connection diagram page 34) like I/O module (see
description page 40) or Relay module (page 41).
A maximum of 4 modules can be connected via the 2nd RS485 port to one Dräger REGARD
24xx unit.
Possible combinations:
8.5. Configuration Set Dräger REGARD 2400 / 2410
The Dräger REGARD 2400 / 2410 configuration Set is required to configure the Control Unit,
the Relay module or the I/O module.
It's not possible to program these components without that configuration set!
For details of the configuration please refer to the Software Configuration Instructions.
Dräger
REGARD 2400/2410 I/O Modul Relay Modul
Number of modules 1 1 0 to 3
1 0 0 to 4

40
I/O Module
9. I/O Module
The I/O module (input-output module) has 6 digital inputs and 6 analog outputs. The module
communicates with the Dräger REGARD 2400 / Dräger Regard 2410 via the RS485 connec-
tion.
To connect the module with the Dräger REGARD 24xx the terminals A / B / COM must be
used.
The module needs a seperate 24 VDC supply.
Digital Inputs: The digital inputs can be used as an alarm function or horn reset. For the alarm
function 2 alarms can be configured with a low or high signal. For the horn reset it's possible
to configure a rising or falling signal.
Analog Outputs: Each output can be configured as a 4... 20 mA output to every channel. It is
also possible to set an output to control the power supply.
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18 35
117
A B Com
RS 485 Analog Output 4...20 mA
+24 V 0 V + D3 + D4 + D5 + D6 + D7 + D8
A B Com S1 0V S2 0V S3 0V S4 0V S5 0V S6 0V
Power Digital Input

41
Relay Module
10. Relay Module
The Relay module has 12 free programmable relays. The Relay module makes it possible to
create single alarms. The module communicates with the Dräger REGARD 2400 / 2410 via
the RS485 connection.
To connect the module with the Dräger REGARD 2400 / 2410 the terminals A / B / COM
must be used.
The module needs a seperate 24 VDC supply.
The configuration of the module is done via Configuration Software.
For configuration details please refer to the Software Configuration Instructions.
Possible combinations:
Dräger
REGARD 2400/2410 I/O Module Relay Module
Number of modules 1 1 0 to 3
1 0 0 to 4
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A B Com A B Com PWR RX TX Adr
Relay 7 Relay 8 Relay 9 Relay 10 Relay 11 Relay 12
Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6
RS485
Relay module
+24V 0V
Power

42
Relay Module
Module address
Switch on Relay module
address
0 0
4This represents module one
1 1
1 0
5This represents module two
0 1
0 1
6This represents module three
1 0
1 1
7This represents module four
0 0
IMPORTANT NOTICE:
When an I/O module is installed the addressing of the relay modules must be 1 to 3 only.
The configuration address in the configuration software and the relay modules must be the
same.
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0
1
0
1

43
The Dräger REGARD 2400 / 2410 Menu
11. The Dräger REGARD 2400 / 2410 Menu
The Control Unit Dräger REGARD 2400 / 2410 has a menu to check instrument data
or relays output. It's also possible to set the controller to an inhibit mode or to set the average
values off (both temporary for 20 minutes).
Average values: The average values are the result of 16 measurements in a configured time
between 1 and 254 seconds (16 seconds to 1:07 hours together). An alarm is defined when
all 16 measurements are over the alarm threshold or if the value is 16 fold higher than the
alarm threshold.
11.1. The Menu Flow-Chart
The menu has different functions which can be selected by using the F1 and F2 buttons.
There are 6 different menu points to show information or freeze functions. Every function
jumps back to the measuring mode automatically after 20 minutes. Some menu points are
password protected.
The protect password is 1875.
On the following 3 pages the menu-structure of the Dräger REGARD 2400 / 2410 is descri-
bed.
To get to the different menu point the buttons F1, F2 or F1+F2 (together) have to be used.
INHI: Inhibit mode. Freezing all relays at the current status for a time of 20 minutes. Pass-
word protected.
MOFF: Average value Off. Freezing the average values for the next 20 minutes. Password
protected.
TOUT: Testing the output relays. Password protected.
SOFT: Showing the Software Version.
MOD: Showing communication details like address (MADR), serial comunication (MCON)
and baud rate (MBAU).
LOG: Showing the status of the datalogger.

44
The Dräger REGARD 2400 / 2410 Menu
Menu
01133025_01_en.eps
Value
INHI
Inhibit Function
Inhibit Function
Activated
Code
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1 F2
F1+F2
F1+F2
Error
Error
Error
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
F1+F2
MOFF
Average Value OFF
Average Value
OFF
Code
TOUT
Relay Test
Sub Menu
Relay Test
Code
SOFT
Software Version
V2.1
Software Version
MOD
Modbus Slave Setting
Sub Menu
Modbus Slave
LOG
Logger Status
L OK
L ER
OK
ERROR
OK
OK
OK

45
The Dräger REGARD 2400 / 2410 Menu
Relay-Test-Menu
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F1+F2
F2
F1+F2
F1+F2
F2
F1+F2
F2
F1+F2
F2
F1
F1
F1
F1
T1 x
Alarm relay 1
T2 x
Alarm relay 2
THUx
Horn relay
TERx
Error relay
x
L
H
current conditon
de-energized
energized

46
The Dräger REGARD 2400 / 2410 Menu
Configuration-Information-Menu
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F1 o. F2
F2
F1 o. F2
F1 o. F2
F1 o. F2 F1 o. F2
F1 o. F2
F1 o. F2
F1
F1
F1
F1
F1
F1
F1
F1
A123
Value
* : depending on the variant and settings
A Un
Unit
A No
Number of
measuring gas
A Mi
* Interval of
average value
A Ze
Min range
A Sp
Max range
R1 x
Function relay 1
R2 x
Function relay 2
F2
F2F2
F2F2
F2F2
F1 o. F2
F2
F2
F2
F2
F1 o. F2
A1Fu
* Alarm function
threshold 1
A1Le
* value
threshold 1
A1Hy
* Hysteresis
threshold 1
A1R1
* Linkage to
alarm relay R1
A2Fu
* Alarm function
threshold 2
A2Le
* value
threshold 2
A2Hy
* Hysteresis
threshold 2
A2R2
* Linkage to
alarm relay R2
HUxx
Time function of
horn relay
HU x
Linkage to alarm
relays
R2xx
Time finction
relay 2
R1xx
Time function
relay 1