Startup
Turn the instrument on
C A U T I O N
Infrared Light Hazard. The infrared light produced by this instrument can cause
eye injury. The infrared light source in this instrument only receives power when
the sample cell cover is closed.
1.
Put the instrument on a stable, level surface that is free of vibration.
Do not put in direct sunlight.
2.
Make sure that there is air circulation around the instrument. Keep
the back and area below the instrument free of material that could
decrease air flow through the vents.
3.
Connect the power cord to the power plug on the back of the
instrument.
4.
Connect the power cord to a power socket with ground contact.
5.
Push the power switch on the back of the instrument to turn the
instrument on.
Turn the keypad sound off (optional)
By default, the instrument makes an audible sound when a key is
pushed. To turn the keypad sound off:
1.
Push
SETUP
. The SETUP light turns on.
2.
Use the arrow keys to select 00.
3.
Push
ENTER
.
4.
Use the arrow keys to select the sound option:
Option
Description
BEEP ON
An audible sound is made when a key is pushed.
BEEP OFF
No sound is made when a key is pushed.
5.
Push
ENTER
.
6.
Push
SETUP
.
Set the date and time
1.
Push
SETUP
. The SETUP light turns on.
2.
Use the arrow keys to select an option:
Option
Description
05
Sets the hours and minutes (HH-MM).
06
Sets the month and day (MM-DD).
07
Sets the year (YY).
3.
Push
ENTER
.
4.
Use the arrow keys to change the value.
5.
Push
ENTER
.
6.
Push
SETUP
.
Show the current time (optional)
1.
Push
SETUP
. The SETUP light turns on.
2.
Use the arrow keys to select 08.
3.
Push
ENTER
. The current time is shown on the display (HH-MM-
SS).
4.
Push
SETUP
.
Standard operation
Calibrate the turbidimeter with StablCal
®
Standards
Calibrate the turbidimeter before it is used for the first time using the
StablCal
®
sealed vial standards provided. As an alternative, calibration
can be done with recently prepared formazin standards. Refer to
Calibrate the turbidimeter with formazin standards
on page 38.
Calibrate the turbidimeter at least every 3 months or as specified by the
regulating authority when data is used for ISO 7027 reporting.
Note: Unknown results may occur if standards other than the recommended
calibration points are used. The recommended calibration points (< 0.1, 20, 200,
1000, 4000 and 7500 NTU) provide the best calibration accuracy. Use of standards
12
English
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