10.3.2 Pointgard 2200 Cat; Instrument Settings; Alarm Configuration; Switching The Alarms On Or Off - Dräger PointGard 2000 Series Gebrauchsanweisung

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Instrument settings

d. Remove the sensor from packaging and ensure that
the sensor is a DrägerSensor.
e. Insert the new sensor into the sensor opening with the
Dräger logo facing up.
f. Reinstall bayonet ring over the sensor, and turn
clockwise until sensor is locked in place.
g. Tighten adjusting screw (22).
When the new sensor is installed, the display shows:
"Loading data, please wait".
When the sensor data are loaded, the display shows:
"Data loaded".
3. Select Back to menu and confirm.
 The maintenance signal on the 4-20mA interface
remains pending until the sensor is warmed-up.
4. Check calibration. If necessary, calibrate the instrument
(see "Calibration", page 17).

10.3.2 PointGard 2200 CAT

Replacing the sensor
This point is only valid for the PointGard 2200 CAT without
remote application.
1. If necessary, set the maintenance current for the analog
interface.
2. Open the instrument.
3. Unplug the sensor connector (24) from the socket (28).
4. Unscrew the sensor and pull it out of the port (9).
5. Route the cables of the new sensor through the port for
the sensor (9).
6. Screw the new sensor in the port for the sensor (9) with
correct torque (194 +/- 17 Lbs. In.22 +/- 2 Nm / 194 +/- 17
Lbs. In.22 +/- 2 Nm).
7. Plug the sensor connector to the socket (28).
8. Close the instrument.
9. Commission the instrument.
10. Check calibration. If necessary, calibrate the instrument
(see "Calibration", page 17).
22
11 Instrument settings

11.1 Alarm configuration

All alarm settings have influence on the relays, the analog
interface, and the built-in alarm devices.

11.1.1 Switching the alarms on or off

1. Select Settings > Instrument > Alarm > Alarm on/off.
Enable
Disable
2. Select Enable or Disable and confirm.

11.1.2 Configuring alarms

1. Select Settings > Instrument > Alarm > Alarm A1 or
Alarm A2 and confirm.
The current alarm threshold is displayed.
2. Apply settings and confirm the configuration steps
successively with Next.
a. Set value for alarm threshold.
b. Set alarm direction.
Rising The alarm direction is called rising, if the
gas concentration has to exceed a certain
value to activate an alarm.
Falling The alarm direction is called falling, if the
gas concentration has to fall below a certain
value to activate an alarm.
c. Set latching mode.
Latching Once the alarm level is reached, the instru-
ment will trigger the alarm. It will remain in
alarm status even if the gas concentration
does not meet the alarm condition any
more. To clear a latching alarm it has to be
acknowledged.
Non-latching The alarm status clears if the gas concen-
tration does not meet the alarm condition
anymore.
d. Set acknowledgement mode.
Acknowledge- Alarm relay and LED can be reset before
able alarm condition clears.
Non-acknowl- Alarm relay and LED can not be reset until
edgeable the alarm condition clears.
Instructions for use
Alarm signaling is on.
Alarm signaling is off.
LEDs, relays and interfaces
do not indicate an alarm con-
dition.
The 4-20mA interface trans-
mits the maintenance signal.
The measured value and the
symbol are displayed.
The fault relay indicates a
fault.
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Dräger PointGard 2000 Series