What to do if Hach 2100Q Measuring Instruments shows 'Temperature too high'?
If the Hach Measuring Instruments displays 'Temperature too high! Switch off instrument', it signifies that the temperature has exceeded the meter's limits (greater than 60 °C or 140 °F). Turn off the meter and allow it to cool down.
What does 'Please check the lamp!' mean on Hach 2100Q Measuring Instruments?
If the Hach Measuring Instruments displays 'Please check the lamp!', it means signals are too low on the 90° and 180° detector. If it's a 2100Q, the lamp is likely defective and needs changing. If it's a 2100Qis, contact technical support.
Why Hach 2100Q shows 'Detector signal too low'?
If the Hach Measuring Instruments shows 'Detector signal too low!', it indicates insufficient light on the 180° detector. Check for any obstructions in the light path and inspect the lamp.
What to do if Hach 2100Q prompts to disconnect the USB cable?
If the Hach Measuring Instruments displays 'Please disconnect the USB cable from your computer', it means the data storage isn't responding while connected to both the meter and the computer. Disconnect the USB cable from the meter and try sending the data again.
How to fix 'USB module memory full' error on Hach Measuring Instruments?
If the Hach Measuring Instruments displays 'USB module memory full. Delete data and try again', it means the data storage is full. Here's how to resolve it: 1. Connect the USB/power module to your computer. 2. Download the stored data to your computer. 3. Delete the Data Log on the module.
What to do if Hach Measuring Instruments says 'Close lid and push Read'?
If the Hach Measuring Instruments shows 'Close lid and push Read', it means the lid is open or the lid detection failed. Ensure the lid is closed during reading and re-read.
Why does my Hach Measuring Instruments say 'Overrange'?
If the Hach Measuring Instruments displays 'Overrange!', it means the turbidity is too high, likely from calibrating with RapidCal only. To fix this, calibrate the upper range or dilute the sample.
What to do if Hach 2100Q Measuring Instruments shows 'Low Battery'?
If the Hach Measuring Instruments displays 'Low Battery!', replace the batteries with new ones. Alternatively, if you're using rechargeable batteries, connect the USB/power module.
Manufacturer's disclaimer and essential safety precautions for users.
Explanation of hazard symbols (DANGER, WARNING, CAUTION, NOTICE) used in the manual.
Guidance on understanding instrument labels and safety alert symbols for injury prevention.
Step-by-step instructions for safely installing AA alkaline or NiMH batteries.
Instructions for powering the meter on and off, including auto-shutoff.
Detailed procedure for calibrating the turbidimeter using StablCal standards.
Guide to performing turbidity measurements, including sample preparation and precautions.
Step-by-step guide for conducting a turbidity measurement with the instrument.
Step-by-step guide for performing a StablCal RapidCal calibration.
Procedure for verifying the calibration status of the turbidimeter.
Procedure for verifying the calibration status of the turbidimeter.
Table listing common error/warning messages, causes, and solutions.
General| Range | 0 - 1000 NTU |
|---|---|
| Resolution | 0.01 NTU on lowest range |
| Detector | Silicon photodiode |
| Stray Light | < 0.02 NTU |
| Measurement Method | Nephelometry |
| Power Supply | 4 AA alkaline batteries |
| Operating Temperature | 0 to 50 °C |
| Storage Temperature | -20-60°C |
| Measurement Modes | Signal Averaging, Rapidly Settling Turbidity |
| Display | LCD |
| Accuracy | ±2% of reading plus stray light from 0 to 1000 NTU |
| Light Source | Tungsten filament lamp |
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