Maintenance; Performing A Bump Test; Create Maintenance Plan; Sensor Replacement - Dräger PointGard 2000 Series Instructions For Use Manual

Warning Cause
number
103, 106 Data error in the
instrument. Some
dongle functions
like data-logger,
sensor test, etc.
may no longer be
available.
104 Date or time setting
not valid.
105 Instrument fault.
107 Battery for data
memory empty.
110, 111, SW dongle has
112 been removed
without being deac-
tivated.
113 Alarms inhibited.
164, 165 Sensor warm-up
phase has not
ended. Increased
measurement error
must be expected.
167, 170 Calibration interval
expired.
Negative reading.
1)
171
Value below range
minimum.
1) PointGard 2100 EC only
10

Maintenance

– The maintenance intervals must be established for each
individual installation. Depending on safety considerations
and application specific conditions the instrument is used
in, these might need to be shortened.
Every 6 months
– Inspection by trained service personnel.
– Check signal transmission to the central controller, LEDs
and triggering of alarm devices.
Calibrations have to be performed on a regular basis, see
8 Calibration

10.1 Performing a bump test

A bump test checks alarm activation without setting off the
alarms.
1. Select Settings > Instrument > Bump test and confirm.
 The maintenance symbol is displayed
 The analog output is set to the maintenance signal.
2. Apply a known concentration of gas.
3. Press OK to return to measurement.
Instructions for use |
Dräger PointGard 2000 Series
Remedy
Reset the instrument to fac-
tory default settings. If this
error occurs again: Have
the instrument checked by
DrägerService.
Set date and time
Have the instrument
checked by DrägerService.
Have the instrument
checked by DrägerService.
Deactivate SW dongle.
Enable alarms
Wait until the sensor has
warmed up. Do not calibrate
before sensor is fully
warmed-up.
Recalibrate the instrument.
Recalibrate zero point.

10.2 Create maintenance plan

The instrument has to be maintained on a regular basis by
trained service personnel. The responsible for the gas
detection system defines the preventive maintenance
intervals that should include the following tasks:
– Testing the alarm triggering of the instrument by:
– The built-in alarm devices
– The optionally connected external relays
– The optional signal transmission via the 4-20mA
interface in case of integration in an alarm
management system.
– Calibration of the sensor.
– Checking horn for cleanliness.
– Performing the inspection (recommended every 6 months)
– Cleaning the instrument using a soft cloth and water.
Detergent must not be used.

10.3 Sensor replacement

WARNING
Faulty Calibration
Faulty Calibration may cause inaccurate readings.
► If the sensor is replaced, all settings and parameters must
be checked for correctness.
► Check calibration to verify proper operation.

10.3.1 PointGard 2100 EC

Sensor lock function
If a sensor of the same type (same part number) was
previously installed, the instrument specific configuration is
retained (gas type, measurement range, test gas, calibration
interval, etc.) Otherwise the factory default settings of the new
sensor are uploaded and will overwrite the instrument specific
configuration. This can be prohibited if the sensor lock
function 30 is activated.
Sensor change function
With the menu function Change Sensor, a sensor can be
changed during operation without triggering a fault signal at
the control unit. It also ensures that all sensor data in the
microprocessor can be saved in the sensor memory
(EEPROM) before disconnecting the sensor.
Replacing the sensor
A sensor can be replaced at any time.
1. Select Settings > Sensor > Change Sensor and confirm.
 The maintenance signal is generated on the 4-20mA
interface.
 The display shows Please remove the sensor.
 The Maintenance symbol is displayed.
2. Replace the old sensor with a new sensor:
a. Loosen adjusting screw (22).
b. Unscrew the bayonet ring (21) from the housing.
c. Remove and discard the cover plate or old sensor
respectively.
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Maintenance en
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