Why does Hach Measuring Instruments say the standard value is too low?
If the Hach Measuring Instruments displays 'The standard value is too low', the wrong calibration standard is in the vial compartment, or the standard has expired. Ensure the correct calibration standard is in the vial compartment and that the standard has not expired. Invert the standard.
What to do if Hach Measuring Instruments says the standard value is out of the measurement range?
If the Hach Measuring Instruments displays 'The standard value is out of the measurement range', use the correct calibration standards, invert the standards, and measure them in ascending order.
What does 'No valid data found' mean on Hach Measuring Instruments?
If the Hach Measuring Instruments displays 'No valid data found', it means no sample ID file was found on the USB flash drive.
What to do if Hach Measuring Instruments says sample ID list full?
If the Hach Measuring Instruments displays 'The sample ID list full. Data has not been added', remove unused sample IDs and add a new one.
General| Model | TL2350 |
|---|---|
| Measurement Range | 0 to 1000 NTU |
| Light Source | LED |
| Operating Temperature | 0 to 50 °C (32 to 122 °F) |
| Warranty | 1 year |
| Category | Turbidimeter |
| Resolution | 0.01 NTU |
| Accuracy | ±2% of reading |
| Measurement Method | Nephelometric |
| Power Supply | 4 AA batteries |
| Display | LCD |
| Response Time | Less than 6 seconds |
Provides accuracy and repeatability specifications for various measurement modes.
Explains the meaning of DANGER, WARNING, CAUTION, and NOTICE hazard symbols.
Instructs users to read labels and explains symbol meanings on the instrument.
Lists and identifies the physical components of the turbidimeter.
Provides recommendations for optimal instrument installation location and environment.
Explains the initial steps to power on and start the instrument.
Guides users through configuring settings like location, date/time, and security.
Explains how to set reading modes, units, and other measurement parameters.
Instructions for adding, editing, and deleting operator IDs, passwords, and security levels.
Steps for adding sample IDs manually or importing them from a file.
Procedure for calibrating the turbidimeter using StablCal standards.
Details on how to configure calibration settings before performing calibration.
Step-by-step guide for performing a StablCal calibration.
Procedure for verifying instrument calibration using standards.
Key considerations for accurate and repeatable turbidity measurements.
Step-by-step process for performing a turbidity measurement.
Safety precautions and notes for replacing the instrument's lamp.
Common startup problems and their solutions.
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