Hach Ultra ORBISPHERE 3624, Operator'S Quick Manual

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About this Guide

The information in this guide has been carefully
checked and is believed to be accurate. However,
Hach Ultra assumes no responsibility for any
inaccuracies that may be contained in this guide.
In no event will Hach Ultra be liable for direct,
indirect, special, incidental, or consequential
damages resulting from any defect or omission in
this guide, even if advised of the possibility of
such damages. In the interest of continued
product development, Hach Ultra reserves the
right to make improvements in this guide and the
products it describes at any time, without notice or
obligation.

Instrument Controls

The front panel of the 3624 ProBrix Plus
instrument has several displays and controls.

The 

Power Switch

 and 

Pump Switch

 are used

to turn the instrument or pump on/off respectively.
The 

CO

2

 and 

°brix-%diet

 LED displays are

driven by analog outputs from the instrument.
The 

Key Switch

 should be turned to the

horizontal  unlocked  position to start  the
instrument in measurement mode. The function
keys are only active if the key switch is in the
unlocked position. Use the vertical locked position
to avoid accidental modifications.
The 

Display

 has a two-line liquid crystal display

(LCD) with 16 characters per line.
A 

Light Button

, when pressed, provides

illumination to the LCD for three minutes.

Four 

Function Keys

 provide simple operator

control over the instrument functions:

•

ESC

 jumps back a step within a program 

menu.

•

The 

×

Ø

 keys are used to scroll through 

screen displays.

•

ENTER

 selects a highlighted item from 

the menu.

Main Menu 

The operator controls the instrument by menu-
selectable commands using the four function
keys. The main menu has three choices: 

•

MEASURE

 to start the measurement 

sequence.

•

OPTIONS

 to enable the instrument to be 

customized.

•

CALIBRATE

 to provide a choice of 

sensor calibration procedures.

To select one of these commands, first press

 ESC

until the main menu is displayed (as illustrated
above), next press the 

×

Ø

 keys until your choice

is flashing, and then press 

ENTER

.

Entering Values

When entering numbers in any of the instrument
menus, the current numerical value is displayed
with one digit highlighted by the 

^

 symbol below it. 

Use the 

×

Ø

 keys to increase/decrease the value

of the digit (0-9 plus a decimal point) until you
reach your required target value.
Press 

ENTER

 to shift the highlight symbol one

digit to the right and repeat the process. Pressing

ENTER

 after the last digit saves the value.

Operating Information