Hach Ultra MET ONE HHPC-2, User Manual, Page: 13 / 42

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Installation
3.2 Installation guidelines for MET ONE HHPC-2
The MET ONE HHPC–2 is ready to use when shipped and has default configuration
settings. Refer to the following general guidelines during installation.
1. Lift the MET ONE HHPC–2 from the shipping container or the carrying case and
place it on a flat surface.
2. Remove the layer of protective plastic from the LCD screen.
3. Remove the isokinetic probe cover (black plastic cap) before the startup of the MET
ONE HHPC–2.
Note: The pump and other internal electrical components will be damaged if the cap is left on.
Note: The battery is charged before shipping, but may need to be charged before operation (refer to
section 6.1 on page 27 for more information ).
3.3 Mechanical installation
The MET ONE HHPC–2 is shipped with two different intake devices:
• Isokinetic probe
• Intake hose barb
Important Note: Do not use a wrench to connect or disconnect the intake nozzle or
isokinetic probe. Only finger-tighten the connection.
3.3.1 Install the isokinetic probe
The isokinetic probe (refer to Figure 4 on page 13 ) is used to sample ambient air
samples. The isokinetic probe is pre-installed and ready for use as soon as the MET ONE
HHPC–2 is unpacked. To install the isokinetic probe:
1. Attach the isokinetic probe to the intake nozzle on the MET ONE HHPC–2 by turning
the isokinetic probe to the right.
2. Remove the black plastic cap attached to the isokinetic probe.
Note: Make sure that the cap is attached to the isokinetic probe when the probe is not in use.
The cap protects the MET ONE HHPC–2 from debris and contamination.
To sample areas that are difficult to reach, connect longer tubing to the isokinetic probe
with a hose barb end.
Note: Use a maximum of four feet of high purity or approved tubing only. Incorrect size or type of
tubing will affect the sample accuracy.
3.3.2 Install the intake hose barb
The intake hose barb (refer to Figure 4 on page 13 ) is connected to the MET ONE
HHPC–2 for zero counting and purging or to sample areas that are difficult to reach.
To install the intake hose barb:
1. Unscrew the isokinetic probe from the MET ONE HHPC–2.
2. Attach the hose barb.
3. Remove the protective cap from the intake hose barb.