Dräger accuro, Instructions For Use Manual

Page: 9 / 9

9
Making a Measurement
●
Check number of strokes required from the
Instructions for Use of the Dräger tube.
●
Hold pump so that the End-of-stroke indicator and the
stroke counter are facing the user
(F) .
●
Squeeze pump until stop .
●
Release pump until bellows are fully expanded.
●
When the end-of-stroke indicator (F1) appears,
squeeze pump completely again.
●
Repeat until the number on the stroke counter (F2)
corresponds to that given in the Instructions for Use.
●
Evaluation of the result in accordance with the
Instructions for Use of the tube in question.
●
Remove used Dräger tube from socket.
●
Flush pump with a few pump strokes in clean air.
Maintenance
To clean or replace the exhaust valve
●
Unscrew bolt by using the hexagonal screwdriver
supplied
(G1) .
●
Lift off lower pump plate, e. g. by using a coin. (G2) .
●
Pull valve disc from its seating (H1) .
●
Wipe valve seating with a damp cloth.
●
Moisten the stem on a new valve disc and push it
firmly into the center hole of the valve seat.
●
Check correct seating by pulling on valve disc lightly.
●
Put back lower pump plate and press it into place
(H2) .
●
Insert bolt again and screw down handtight.
Perform the leak test as described
(A) .
Replacing the socket/
Replacing the membrane
●
Press spring hook down with a suitable tool
(e. g. ball pen)
(I1) .
●
Take out cover plate (I2) .
Cover plate holds End-of-Stroke Indicator assembly
in place.
●
Press spring flanges together and remove socket. (J) .
●
Insert new socket.
●
Using a new End-of-Stroke Indicator Membrane,
place parts into the housing in the sequence
illustrated
(K) .
Observe appropriate position.
●
Insert spring hook of cover plate and push on firmly.
●
Perform the leak test as described (A) .
Technical Data
Tests and Approvals
Ex-Approvals
Stroke volume 100 ±5 cm
3
Length 170 mm
Width 45 mm
Height 85 mm
Weight 250 g
Ambient conditions
(Operation and storage)
Temperature –20
o
C to +50
o
C
Humidity 0 to 95 % non condensing
ATEX:
I M1
II 1G IIC T6 – 20
o
C ≤ Ta ≤ + 50
o
C
II 1D
BVS 04 ATEX H 068
ATTENTION!
Some Dräger tubes must not be used in
areas subject to explosion hazards.
See the relevant Instructions for Use of the
Dräger tubes.
Fault, Cause, Remedy
Order List
Fault Cause Remedy
End-of-stroke
indicator visible
within 15 min Foreign matter in
exhaust valve,
Defective valve
disc Clean valve and
valve seating.
Replace valve
when required,
(K)
Tube too loose in
socket Insert tube
tightly into
socket, (E)
Pump does not
open One of the tube
ends has not
been opened Open tube at
both ends, (D)
Clogged socket Replace socket,
(J)
Name Item no.
accuro Gas detector pump 64 00 000
Spare part kit 64 00 220
Loop handle, complete 64 00 208
Opener for Dräger tubes 64 01 200
Extension hose 3 m 64 00 077
Gas detector kit 64 00 260
accuro 2000 64 00 200
English