Figure 9 Bypass flow rate adjustment - multi-streams
Connect the air purge (optional)
To keep dust and corrosion out of the instrument enclosure, use the optional air-purge kit. Supply
clean, dry instrument-quality air at 0.425 m
3
/hour (15 scfh). The air purge fitting is a 6 mm OD push-
to-connect fitting for plastic tubing.
1. Remove the fan filter and replace it with a plug. Refer to the instructions supplied with the air
purge kit.
2. Find the air purge connection on the instrument enclosure. Refer to Plumbing access ports
on page 7.
3. Install the tubing.
4. Enable the air purge in the instrument menu. Refer to the operations manual.
Electrical installation
D A N G E R
Electrocution hazard.
Use either high voltage (more than 30 V RMS and 42.2 V PEAK or 60 VDC) or low voltage (less than
30 V RMS and 42.2 V PEAK or 60 VDC). Do not use a combination of high and low voltage.
Always remove power to the instrument before making electrical connections.
Do not connect AC power directly to a DC powered instrument.
If this equipment is used outdoors or in potentially wet locations, a Ground Fault Circuit Interrupt
(GFCI/GFI) device must be used for connecting the equipment to its main power source.
Protective Earth Ground (PE) connection is required.
Use only fittings that have the specified environmental enclosure rating. Obey the requirements in the
Specifications section.
English 11
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