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General information
2.1.3 Class 1 LASER
A Class 1 LASER is installed in this instrument. Class 1 LASERS are products where the
radiant power of the LASER beam accessible (the accessible emission) is always below
the Maximum Permissible Exposure value. Therefore, for Class 1 LASERS the output
power is below the level at which it is believed eye damage will occur. Exposure to the
beam of a Class 1 LASER will not result in eye injury. Class 1 LASERS may therefore be
considered safe. However, Class 1 LASER products may contain LASER systems of a
higher Class but there are adequate engineering control measures to ensure that access
to the beam is not reasonably likely. This Class 1 Laser product complies with 21 CFR
Chapter 1, subchapter J. It is evaluated and tested in accordance with EN 61010-1,
Safety Requirements for Electrical Equipment for Measurement and Control and
Laboratory Use and IEC/EN 60825-1, Safety of Laser Products.
2.2 Configuration options
Figure 2 shows the part number configurations for the Met One 6000 particle counter.
This symbol indicates a laser device is used in the equipment.
This symbol indicated the presence of devices sensitive to Electro-static Discharge (ESD) and indicated that care
must be taken to prevent damage with the equipment.
This symbol identifies the location of a fuse or current limiting device.
This symbol indicates that the instrument contains a Class 1 LASER device.
Figure 2 Part number description of available configurations
1
1 Flow rate: 0 = 0.1 cfm (for 0.3µm and 0.5µm sensitivity); 1 = 1.0 cfm (for 0.5µm sensitivity only)
2 Sensitivity: 3 = 0.3 µm minimum sensitivity; 5 = 0.5 µm minimum sensitivity
3 Exhaust location: D = Bottom (down) exhaust; S = Side exhaust
4 Flow measurement: F = with flow measurement; N = without flow measurement
5 Communication: E = Ethernet; S = Serial I/O Options
2
; A = Analog; W = Wireless
3
1
Example: for a counter with a 0.1 cfm flow rate, 0.5 µm sensitivity, bottom exhaust port, flow measurement and RS485
communication, order part numbers 2088605-DF-S and 20888600-485.
2
Specify the type of serial I/O configuration with an additional part number. RS232 = 20888600-232; RS485 = 20888600-485;
Pulse = 20888600-PLS. This additional part number must be ordered for each counter (at no additional cost).
3
Contact a Hach customer service representative for wireless availability in the country where the counter is located.
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