Hach DR300, Service Manual

Page: 11 / 86

Section 3 Startup
3.1 Install the batteries
W A R N I N G
Explosion hazard. Incorrect battery installation can cause the release of explosive gases.
Be sure that the batteries are of the same approved chemical type and are inserted in the
correct orientation. Do not mix new and used batteries.
Refer to Figure 4 to install the batteries. Then, push to set the instrument to on.
Figure 4 Install the batteries
1 Coin 3 Plastic insert for dongle
3
2 Battery cover
3.2 Set the time
Set the time (24-hour format).
1. Push and hold for 3 seconds to enter menu mode.
The time shows (or 00:00).
2. Push to set the time.
3. Push the or to change the number that flashes. Push to go to the next digit.
Push to go to the previous digit.
3.3 Do a test
D A N G E R
Chemical or biological hazards. If this instrument is used to monitor a treatment process
and/or chemical feed system for which there are regulatory limits and monitoring
requirements related to public health, public safety, food or beverage manufacture or
processing, it is the responsibility of the user of this instrument to know and abide by any
applicable regulation and to have sufficient and appropriate mechanisms in place for
compliance with applicable regulations in the event of malfunction of the instrument.
3
Only remove the plastic insert to install the Hach Communication Dongle. Refer to the installation instructions
supplied with the dongle.
9