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General| Type | Handheld Colorimeter |
|---|---|
| Manufacturer | Hanna Instruments |
| Category | Measuring Instruments |
| Light Source | LED |
| Light Detector | Silicon Photocell |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Display | LCD |
| Auto-shut off | After 10 minutes of non-use |
| IP Rating | IP67 |
| Measurement Parameters | Free Chlorine, Total Chlorine |
| Measurement Range | Varies by model |
| Resolution | Varies by model |
| Accuracy | Varies by model |
| Battery Type | AAA alkaline |
| Model | Checker® Plus |
Specifies the measurable pH range of the instrument.
Defines the smallest increment the pH meter can display.
Indicates the deviation from the true pH value.
Details the process for calibrating the pH meter.
Information about the included pH electrode model.
Specifies the operating temperature and humidity limits.
Identifies the type of battery required for the instrument.
Provides an estimate of the battery's operational duration.
Details the automatic power-off feature settings.
Lists the physical size of the instrument.
Specifies the weight of the instrument.
Instructions for preparing and storing the pH electrode.
Steps for taking pH measurements with the Checker Plus.
Details on visual indicators for immersion and battery status.
Step-by-step guide for calibrating the pH meter using buffer solutions.
Guidance on calibration errors and buffer solution use.
Procedure to reset the meter to default calibration settings.
Instructions for replacing the instrument's battery.
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