Instruction Manual

5
Clean Sensing System
Air Volume Displayed in 5 Levels
The smaller fan section and the unique ventilation construction design provides a more uniform
laminar airflow. Uniform air is provided over a wide area.
Two LED indicators indicate operation errors (e.g.,
stopped fans) and when HEPA filter replacement is
required. Located on two corners of the Unit, the
LED indicators are visible from many angles.
200
500
Measurement conditions: Maximum air volume Measurement conditions: Maximum air volume
750
1000
200 100 0 100 200 (mm)
(mm)
An I/O interface is built in.
An AC adapter or 24-VDC input can be selected for
the power supply.
An alarm signal is output if the self-diagnosis function
indicates HEPA filter replacement or error operation.
HEPA filters can be replaced without tools thanks to
the use of buckles. Onsite maintenance time is
reduced because filters can be replaced in a
one-step operation.
The air volume can be set to 5 different levels, from 0.3
to 1.8 m
3
/min for the ZN-A2502 and 1.0 to 5.0 m
3
/min
for the ZN-A4105. The air volume can be checked with
the large indicators in the middle.
0.8 m/s min.
0.7 to 0.8 m/s min.
0.6 to 0.7 m/s min.
0.5 to 0.6 m/s min.
Air Speed Distribution
(at 200 mm from Air Clean Unit)
1.00 to 1.20 (m/s)
0.80 to 1.00 (m/s)
AC Adapter inputDC power supply/external output terminal
200
500
750
1000
400 200 0 200 400
0.9 m/s min.
0.7 to 0.9 m/s min.
0.5 to 0.7 m/s min.
0.5 m/s min.
Laminar Airflow Design
ZN-A2502
Distance from Air Clean Unit
200 mm
200 mm
ZN-A4105
Distance from Air Clean Unit
(mm)
(mm)
Air Speed Distribution
(at 500 mm from Air Clean Unit)
1.00 to 1.20 (m/s)
0.80 to 1.00 (m/s)
0.60 to 0.80 (m/s)
360 mm
360 mm
Airflow Switching Function
Self-diagnosis Function
External I/O Ultra-Easy Maintenance