Hach Ultra MET ONE 237AB, User Manual, Page: 15 / 57

12
Installation
3.2.4 Connect the AC adapter
The AC adapter (refer to Figure 3 on page 9 , item 6) is used to charge the internal battery
and use the MET ONE 237 particle counter with a standard 115 VAC outlet.
To connect the AC adapter:
1. Turn off power to the MET ONE 237 particle counter.
2. Attach the AC adapter to the power input jack (refer to Figure 6 on page 12 ) at the
back of the MET ONE 237 particle counter.
3.2.5 Install the RH/T probe
To install the RH/T probe:
1. The RH/T probe is connected to the back of the unit (refer to Figure 6 on page 12 ,
item 1).
2. Attach the RH/T probe to the inlet so that the open end faces the direction of the air
stream.
Note: Make sure that the RH/T probe is attached before the counter is turned on.
3.3 Rear panel connections
The power switch, fuse holders and all connectors are on the rear panel of the counter as
shown in
Figure 6 on page 12 .
Note: The connectors for Analog Out and Printer appear only in models with the Analog Output
option, which do not have a built-in printer.
Figure 6 Rear panel connections
1 RH/T probe connector 3 Switch
2 Optional connectors