14
User Guide
EN
Dansensor
®
MAP Check 3
Vacuum
Fig. 5.
“Buffer“ version
The “Buffer “versions can measure the O
2
and CO
2
levels in the packaging machines buffer
tank. Doing this before start up ensures that the gas is OK before you start to pack the
product.
A hose is connected from the buffer tank to the "Buffer Gas Inlet" on the device. Please note
that the device will not be able to perform a proper measurement unless the pressure in the
buffer tank is within a certain range - see
"7. Technical Information" on page 83
for further
details.
During a buffer measurement the device uses a normal sensor flow (75 ml/min).
The longer hose that is used and the higher pressure the longer it will take to get the correct
gas to the sensors. Therefore make the hose as short as possible. Do a test measurement to
find out how long time it takes for the gas to reach the sensor. Then ensure that the buffer
measure time is long enough.
No vacuum in the packaging machine
The
Dansensor®
MAP Check 3 Vacuum
can be used even if there is no vacuum connected
inside the die of the packaging machine. To use the device in this way connect the evacuation
and gas signals so that the device gets the signals at the same time.
Packaging Machine
EVACUATION
VALVE
GASSING
VALVE
VACUUM
V2
V5
V1
VACUUM
CAL. GAS
INLET
BUFFER GAS
INLET
AIR INLET
SAMPLE
LOOP
PROPORTIONAL
VALVE
SAMPLE GAS
INLET
O
2
sensor
(Zr)
P1
P3
V3
V6
75
ml/min
5 l/min
@
sample
boost
sample
boost
CO
2
sensor
(IR)
DIE
GAS
BUFFER
V4
P2
Содержание AMETEK Dansensor MAP Check 3 Vacuum
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