EN/US/CA/A.mist A.mistT/UM-2239-1
15
Subject to alteration without prior notice.
11.2 Pressure settings
PLEASE NOTE! If a filter stage is used even though the red LED-lamp is lit, the filter unit gives a
reduced air volume. note however, that the filter unit will not be damaged when operated with a
clogged filter stage. Handling during service is described under “Changing the filter”.
ELECTRONIC MANOMETER (A•mist
6C
, A•mist
10-20
, A•mist
40-80
)
11
A
B
C
11.1 Functional description
An electronic pressure gauge A•monitor is supplied as standard along with most A•mist
filter units. The pressure monitor is delivered factory preset and contains the following
features:
OPTICAL DISPLAY OVER EACH FILTER STAGE
The present pressure drop over each filter stage is monitored (See 11.2.)
LED INDICATION
A green LED lamp is lit as long as the filter cassette is working within the preset
pressure range. When the yellow lamp is lit, call your service contact to replace the
filter stage. When the red LED lamp is lit, the pressure drop is too high for the filter
unit and it gives a reduced air flow.
HOUR COUNTER DEVICE
An hour-counter device is also included in our standard equipment.
It measures and monitors the operation time in hours for the filter unit.
ALARM
On the transformator card, there is an alarm output that can be used for external
alarms (maximum 1A). If any of the filter stages reaches alarm level (red LED), the
alarm output closes, see 8.3)
.
D
[Pa]
[in WC]
Filter type
Green
Yellow
Red
Green Yellow Red
A•mist
6C
Filter stage 2:
HEPA TREA 340/300
0-600 600-800 > 800 0-2.4 2.4-3.2 > 3.2
Filter stage 1: S3B1/300
0-500 500-600 > 600 0-2.0 2.0-2.4 > 2.4
A•mist
10
Filter stage 2: HEPA TRSA-N 595x292
0-600 600-800 > 800 0-2.4 2.4-3.2 > 3.2
Filter stage 1: S3B1/595
0-500 500-600 > 600 0-2.0 2.0-2.4 > 2.4
A•mist
20
A•mist
20HP
A•mist
40-80
Filter stage
3: HEPA TRSA-N 595x292
0-600 600-800 > 800 0-2.4 2.4-3.2 > 3.2
Filter stage 2: S3B1/595
0-500 500-600 > 600 0-2.0 2.0-2.4 > 2.4
Filter stage 1: S3/595
0-500 500-600 > 600 0-2.0 2.0-2.4 > 2.4
A•mist
10S
Filter stage
2: HEPA TRSA-N 595x292
0-600 600-800 > 800 0-2.4 2.4-3.2 > 3.2
Filter stage 1: S10B3/595
0-1000 1000-1500 > 1500 0-4.0 4.0-6.0 > 6.0
A•mist
20HPS
A•mist
20S
Filter stage
3: HEPA TRSA-N 595x292
0-600 600-800 > 800 0-2.4 2.4-3.2 > 3.2
Filter stage 2: S10B3/595
0-1000 1000-1500 > 1500 0-4.0 4.0-6.0 > 6.0
Filter stage 1: S1/595
0-1000 1000-1500 > 1500 0-4.0 4.0-6.0 > 6.0
