Hach TU5400 sc Basic User Manual page 21

Section 5 User navigation
Refer to the controller documentation for keypad description and navigation information.
Push the RIGHT arrow key on the controller multiple times to show more information on the home
screen and to show a graphical display.
Section 6 Operation
Refer to the expanded user manual on the manufacturer's website to configure the instrument
settings and to compare process and lab measurements.
Section 7 Calibration
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
When the instrument is used for US EPA regulatory reporting, calibrations must be done according to
US EPA guidance documents and methodologies. Contact local regulating authorities for additional
compliance regulations.
The instrument is factory calibrated and the laser light source is stable. The manufacturer
recommends that a calibration verification be done periodically to make sure that the system
operates as intended. The manufacturer recommends calibration as local regulations require and
after repairs or comprehensive maintenance work.
Use the optional calibration lid and a vial(s) with a StablCal standard or Formazin standard to
calibrate the instrument. Refer to the Calibration lid documentation for more calibration procedures
with and without RFID vials, 1-point and 2-point calibrations. As an alternative, use a syringe and
StablCal standard or Formazin standard to calibrate the instrument.
Refer to the expanded user manual on
calibration settings.
Section 8 Verification
Use the optional calibration lid and a sealed-vial 10-NTU StablCal standard (or a StablCal 10 NTU
standard and a syringe) to do a primary calibration verification. As an alternative, use the optional
calibration lid and the optional glass verification rod (< 0.1 NTU) to do a secondary calibration
verification in the lower range of turbidity.
Do a calibration verification immediately after each calibration to measure the verification standard
and record the measured value to the instrument.
Do calibration verifications between calibrations according to the regulatory recommendations to
identify if the instrument operates correctly and is calibrated.
When a calibration verification is done between calibrations, the verification standard is measured.
The measured value is compared to the recorded value of the verification standard.
Refer to the expanded user manual on
verification settings.
W A R N I N G
www.hach.com to calibrate the instrument and configure the
www.hach.com to do a verification and configure the
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