HF scientific Micro1000 Laboratory Turbidimeter - 0-10,000 NTU - Manual (Page 10)

Rev. 3.2 4
The ON/OFF key ( ) key is used to turn the instrument ON or OFF. The enter key ( ) is used
to accept information. The up and down arrow keys (SandT) are used to set and reset numerical
values and to change instrument modes. The left and right arrow keys (◄and►) are used to scroll
through lists. In addition, the rear panel of the instrument is designed to provide ready access to the
power plug connector, the RS-232 serial port and the dry air purge connector.
Figure 2 illustrates all the items that can appear on the display. The upper row of the display (1) is
used for reporting the turbidity levels and to provide user guidance in the customer setting routine.
The lower row of the display (2) is used to communicate error messages and user guidance. The
display has several status indicators (3) that distinguish the operation of the instrument. In addition
there are several indicators that display the different scales (4) that the instrument will report. Other
indicators (5) provide guidance when the setup and calibration routines are being used.
Figure 2 – Display used in the instrument. All items that
are used on the display are shown in this figure
3. Safety
This manual contains basic instructions that you must follow during the commissioning, operation,
care and maintenance of the instrument. The safety protection provided by this equipment may be
impaired if it is commissioned and/or used in a manner not described in this manual. Consequently,
all responsible personnel must read this manual prior to working with this instrument.
The instrument has a time-out feature that automatically returns the system operation to the normal
operation mode from any other mode after a five (5) minute period of inactivity.
Ensure that the instrument has been turned off prior to removing power from the instrument.
In certain instances WARNINGS, Notes, or helpful hints, have been highlighted to give further
clarification to the instructions. Refer to the Table of Contents to easily find specific topics and to
learn about unfamiliar terms.