Dräger 2500 User Manual

18
Useen
3.2 Functional description
The test unit is supplied with compressed air from the medium-
pressure connector of a SCBA or a fixed compressed air system.
The lung demand valve or the chemical protection suit is
supplied with compressed air from the medium pressure outlet.
The test unit is controlled with the control levers. Medium-
pressure and low pressure gauges and a timer are used to
determine the measured values.
The Dräger Testor 3500 test unit can be operated with a PC.
This requires the "Dräger Protector Software" test system and
the USB cable. The software can also be downloaded from the
Dräger website (www.draeger.com/software). This software
indicates all test steps and logs the test results. The test results
are saved and can be printed. Test date monitoring ensures
that the inspection intervals are observed.
3.3 Intended use
The leak-tightness and functions of the following products can
be tested with the test unit:
 Full face masks
 Lung demand valves
 Compressed air breathing apparatus
 Chemical protective suits
The following tests can be performed with the test unit:
 on the full face mask
 leak test
 opening pressure of the exhalation valve
 on the lung demand valve:
 leak test
 low-pressure rise
 Opening pressure
 Switching pressure
 Static positive pressure
 on the compressed air breathing apparatus
 Static medium pressure
 medium-pressure rise
 high pressure leak test
 on the chemical protective suit
 seal of the chemical protective suit
 leak tightness of suit valves
The tests are conducted in accordance with the VFDB
Directive 0804 and for the SCBA also in accordance with
EN 137.
3.4 Explanation of symbols
3.5 Meaning of LEDs
NOTICE
The LEDs are only present on the Dräger Testor 3500.
4Use
4.1 Instructions on using the test unit
4.1.1 General
To ensure safe and accident-free work with the test unit,
observe the following points when working with the test unit:
 Before commissioning, the test unit must be attached to the
workstation using the table mount.
 The test unit must be protected against ingress of water
and moisture. Ensure that no moisture from splash water or
leaking water can ingress into the test unit.
 The housing may only be opened by trained Dräger
personnel.
4.1.2 Operating the test unit
 To generate negative pressure, hold the left control lever in
the "–" position.
 To vent the system slowly, hold the left control lever in
the " " position.
 To generate positive pressure, hold the right control lever
in the "+" position.
 To vent the system quickly, hold the right control lever in
the " " position.
Vent system slowly
Vent system quickly
Generate positive pressure in the system
Generate negative pressure in the system
Colour Status Meaning
green intermit-
tent ON/
OFF
Zeroing of the sensors in progress.
ON Zeroing of the sensors successfully com-
pleted.
The system is ready for operation.
OFF Zeroing of the sensors not successfully
completed.
The system is not ready for operation.
red ON Electronics are receiving power.
+
–

Dräger 2500 Specifications

General

Detection Principle	Electrochemical
Response Time	< 15 seconds
Operating Temperature	-20°C to +50°C
Operating Humidity	0% to 95% RH (non-condensing)
Resolution	0.1% vol.
Target Gas	Oxygen (O2)