B-5. ACCESSORIES FOR THE MULTI GAS DETECTOR.
a. Stroke Counter. The stroke counter automatically counts the strokes made with the pump (counting range
O to 19). It is pushed onto the pump head.
b. Extension Hose for Inaccessible Points of Measurement. For inaccessible points of measurement, we
recommend the use of the extension hose. One end of the extension hose is equipped with a device permitting easy
connection of the hose to the bellows pump. The dimensions of the tube holder at the other end of the hose are chosen in
such a way that the DRAGER Tubes can be inserted in a gas tight manner. The extension hose is 3 m long and is made
from a synthetic rubber which is resistant to petrol.
Since the DRAGER Tube fits into the tube holder at the intake opening of the hose, the volume of the intake line need not
be taken into consideration in the measurement. Testing and evaluation of the result are carried out just as described for
the detector tube concerned.
c. Motor Vehicle Exhaust Gas Probe for the Multi Gas Detector. A probe, which is inserted in the exhaust
pipe, is available for investigation of the exhaust gases of internal combustion engines. Its design is such that the gas
sample is sucked in at a temperature which is acceptable for the DRAGER Tube.
For further details, see Instructions for Use 2341.1e.
d. Hot Air Probe for the Multi Gas Detector for Sampling Hot Flue Gases. For example, for the
determination of the CO or C02 content of the flue gases of oil furnaces. The efficiency of the furnace can be calculated
from the C02 content, measured with the DRAGER C02 1% Tube and the tube gas temperature. See also Instructions for
e. Supplementary Parts for the Respiratory CO Test. Determination of the CO content in the expired air has
proved to be a valuable supplement to measurement of carbon monoxide at the workplace. The test subject is asked to
inflate fully a I-litre measuring bag by exhaling through a resistance tube into the bag. The expired air sample is
investigated by means of the bellows pump and the DRAGER Respiratory C02 a Tube. The tube indication is a direct
measure of the CO content.
B-5. FOR DRAGER TUBES, see the Detector Tube Handbook (Special Print 2340 e) and the Instructions for Use of the
detector tubes used.
B-6. DRAGER QUANTIMETER MODEL 1. DRAGERWERK supply the DRAGER Quantimeter Model 1-Automatic Gas
Detector for prolonged measurements with DRAGER Tubes e.g. in the emission concentration range.
This instrument works like the bellows pump, but the suction strokes are made automatically. A counter enables the
number of strokes required to be set before testing. Built-in rechargeable batteries act as energy source. Mains floating
battery operation is possible using the corresponding charging instrument.