Configuration Of Integrated Alarm Devices; Dip Switch; Setting The Dip Switch Pins; Interface Settings - Dräger PointGard 2000 Série Mode D'emploi

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Configuration of integrated alarm devices

Non-display
If an alarm is triggered, the display shows the current gas
concentration and the red LED blinks regardless of the
selected display mode.
12 Configuration of integrated alarm
devices
For further information and configurations, consult the
technical manual 9300148.

12.1 DIP switch

The 5 pins on the DIP switch are used to configure the alarm
patterns of integrated alarm devices.
Pin ON
Horn is active on A2
1)
1
alarms.
Horn is active on A1
1)
2
alarms.
3 Strobe alarm pattern for
green/red strobe combina-
tion.
4 Horn is active.
5 Horn tone: Continuous
1) Pins 1 and 2 are not applicable for instruments with green/red strobe
combination.
DIP switch default settings for amber/red strobe
combination
1 2
ON OFF
DIP switch default settings for green/red strobe
combination
1 2
ON OFF

12.1.1 Setting the DIP switch pins

1. Open the instrument.
2. Toggle the DIP switch pins:
to the left
to the right
3. Close the instrument.
4. Commission the instrument.
24
Shows the start screen and
the applicable symbols.
OFF
Horn is not active on A2
alarms.
Horn is not active on A1
alarms.
Strobe alarm pattern for
amber/red strobe combina-
tion.
Horn is not active.
Horn tone: Pulsating
Pins
3 4
OFF ON OFF
Pins
3 4
ON ON OFF
ON
OFF
13

Interface settings

13.1 4-20mA interface

The current output of the instrument during normal operation
is between 4 and 20 mA and is proportional to the detected
gas concentration.
PointGard 2xx0 uses different current values to indicate
various modes of operation. The factory default settings are
user adjustable for application specific requirements. This
follows the NAMUR recommendation NE43.

13.1.1 Full scale deflection

PointGard 2100 EC, 27x0 IR and 2200 CAT Remote LC only
Some sensors offer an adjustable full scale deflection to limit
the measuring range for the 4-20 mA interface.
The full scale deflection (FSD) sets an endpoint within the
measuring range of the sensor. If the gas concentration
reaches this endpoint, the 4-20mA interface transmits 20mA.
Example: Required range 0 to 500 ppm CO (e.g. part number
6809605 default 300 ppm, range min/max = 50/1000
ppm).Select full scale deflection as 500 ppm. The analog
output will be linear between 4 mA = 0 ppm and 20 mA = 500
ppm.

13.1.2 Setting fault current

This function defines the current for the fault signal.
1. Select Settings > Communication > Analog interface
>Fault current and confirm.
2. Select the line for editing the current and confirm.
3. Set the current and confirm.
 The setting for the Fault current is displayed.
4. Select Confirm and confirm with [OK].

13.1.3 Information regarding the warning signal

5
To transmit a warning signal via the analog interface, the
warning signal must be switched on.
The warning signal alternates between the warning current
and the measurement current.
– Warning current (interval T2)
– Measurement current (interval T1-T2)
Time intervals and the warning current are configurable.
5
[mA]
20
4
3

13.1.4 Switching the warning signal on or off

1. Select Settings > Communication > Analog interface >
Warning and confirm.
2. Select Enable or Disable and confirm.
Instructions for use
T
2
T
1
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Dräger PointGard 2000 Series
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