Commissioning; Calibration; During Operation; Maintenance - Dräger PointGard 2000 Series Gebrauchsanweisung

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Conventions in this document

Relay option
– Max 5 A current for relays allowed (SPDT contact 5 A at
230 VAC, 5 A at 30 VDC)
– At voltages >30 V AC or >42.4 V DC, the relay cables
must be enclosed in protective tubing, or double-insulated
cables must be used.
– The wiring for the optional relay module must be selected
and fused according to the rated voltages, currents and
environmental conditions.
– Voltage differences can cause insulation faults. Do not mix
electric loads with different voltage types (AC or DC).
Using DC loads, ensure that relay contacts only control
devices with the same DC voltage rating. Using AC loads,
ensure that relay contacts are only connected to devices
sharing a common phase.
1.5

Commissioning

– Ensure wiring for relays and connections for sensor are
made before applying power.
– Before leaving the instrument for normal operation, check
the configuration and calibration for the proper settings.

1.5.1 Calibration

– For proper operation, never adjust the span before
completing zero adjustment. Performing these operations
out of order will cause the calibration to be faulty.
– If the intended operation is at high altitudes, the reading
will be lower than the reading at sea level (reduced partial
pressure). A new span calibration is recommended if the
altitude or the ambient pressure is changed. The factory
calibration is set to sea level.
– Dräger recommends calibrating instruments with target
gas. This method is more accurate than a surrogate gas
calibration. A surrogate gas calibration may only be
performed as an alternative if a target gas calibration is
not possible.
– Methane and hydrogen should be calibrated with target
gas only and not calibrated with a surrogate gas.
1.6

During operation

WARNING
Risk of electric shock
Opening the instrument during operation can result in an
electric shock.
► Disconnect power from the instrument and wait at least 1
minute before continuing.

1.6.1 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.
– Refer to the maintenance section in the transmitter
instructions for use.
8
Under normal conditions, Dräger recommends the following
1)
calibration intervals :
– Electrochemical sensors (EC): 6 months
– Catalytic sensors (CAT): 4 months
2 Conventions in this document
2.1

Meaning of the warning notes

The following warning signs are used in this document to
indicate and highlight areas of the associated text that require
particular attention by the user. A definition of the meaning of
each sign is as follows:
Alert icon Signal word
WARNING
CAUTION
NOTICE
2.2

Trademarks

®
– HART is a registered trademark of HART
Communication Foundation.
3

Description

3.1

Product overview

The Dräger PointGard 2x00 product family includes 2
versions.
– PointGard 2100 EC is intended for electrochemical
sensors (EC sensors).
– PointGard 2200 CAT is intended for catalytic Ex sensors
(CatEx sensors).
1) Observe sensor data sheet and sensor IfU
2) Normatively required
Instructions for use
2)
Consequences in case of
nonobservance
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in death or serious
injury.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in physical injury. It
may also be used to warn
against unsafe practices.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in damage to the
product or environment.
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Dräger PointGard 2000 Series