This manual is intended for use with the following Pocket Colorimeter II models⁚
- Pocket Colorimeter II, Wavelength Specific Model, 450 nm
- Pocket Colorimeter II, with SwifTest Reagent Dispenser
It provides instructions for unpacking, setting up, operating, and maintaining the device.
The manual also includes information on safety precautions, troubleshooting, and regulatory compliance.
Please read this manual carefully before using the Hach Pocket Colorimeter II.
Introduction
The Hach Pocket Colorimeter II is a compact and easy-to-use instrument designed for accurate and reliable water quality analysis. It is a versatile tool that can be used in a wide range of applications, including⁚
- Monitoring drinking water
- Testing swimming pool water
- Analyzing industrial wastewater
- Performing environmental monitoring
The Pocket Colorimeter II utilizes a colorimetric method to determine the concentration of specific analytes in water samples. This manual provides comprehensive instructions on how to use and maintain the instrument to ensure accurate and reliable results.
Intended Use
The Hach Pocket Colorimeter II is a portable, handheld instrument designed for measuring the concentration of various water quality parameters using colorimetric methods. It is intended for use by trained professionals in a variety of settings, including⁚
- Water treatment plants
- Industrial facilities
- Swimming pools and spas
- Environmental monitoring agencies
- Educational institutions
The device is not intended for use in clinical or diagnostic applications. It is crucial to follow the instructions provided in this manual and adhere to all safety precautions for accurate and safe operation.
Features and Benefits
The Hach Pocket Colorimeter II boasts several features that contribute to its ease of use and accuracy. These include⁚
- A large, backlit LCD display for clear visibility in any lighting condition.
- Simple operation with only four buttons for intuitive navigation.
- Pre-programmed methods for various water quality parameters.
- Compatibility with pre-measured, single-use reagent vials for convenient testing.
- Durable and compact design for portability and ruggedness.
- Long battery life for extended use in the field.
These features make the Hach Pocket Colorimeter II a valuable tool for water quality monitoring and analysis.
Ordering Information
To order the Hach Pocket Colorimeter II, you can contact Hach Company directly. You can find their contact information at the end of this manual. When ordering, specify the model number and any additional accessories you may require, such as reagent vials, sample cells, and carrying cases.
The Hach Pocket Colorimeter II is typically sold as a kit that includes the instrument, a carrying case, a set of pre-measured reagent vials, sample cells, and a user manual. You may also be able to purchase individual components separately.
For detailed ordering information and pricing, please contact Hach Company directly.
Safety Precautions
Always follow the safety instructions provided in this manual and on the instrument itself. The Hach Pocket Colorimeter II is a safe and reliable instrument when used correctly. However, certain precautions must be taken to prevent accidents and ensure the safety of both the user and the instrument.
Never use the instrument in a hazardous environment or near flammable materials. Always wear appropriate personal protective equipment (PPE), such as safety glasses, gloves, and a lab coat, when handling chemicals or working with the instrument.
Never attempt to disassemble or modify the instrument. If you have any questions about the safe operation of the instrument, please contact Hach Company directly.
Operating Principles
The Hach Pocket Colorimeter II employs the Beer-Lambert Law, a fundamental principle in spectrophotometry, to determine the concentration of an analyte in a solution. This law states that the absorbance of a solution is directly proportional to the concentration of the analyte and the path length of the light beam through the solution.
When a light beam passes through a solution containing an analyte, some of the light is absorbed by the analyte molecules. The amount of light absorbed is dependent on the concentration of the analyte and the wavelength of the light. By measuring the absorbance of the solution at a specific wavelength, the concentration of the analyte can be determined.
The Hach Pocket Colorimeter II uses a light-emitting diode (LED) to produce a beam of light at a specific wavelength. This light beam passes through the sample cell containing the solution and then reaches a photodetector. The photodetector measures the amount of light that passes through the solution. This information is then used to calculate the concentration of the analyte.
Instrument Description
The Hach Pocket Colorimeter II is a compact and portable instrument designed for measuring the concentration of various analytes in water samples. Its sleek design incorporates a user-friendly interface and a range of features that enhance its functionality and ease of use. The instrument is equipped with a backlit LCD display for clear visibility in diverse lighting conditions, making it suitable for both field and laboratory applications.
The Pocket Colorimeter II is powered by standard batteries, ensuring convenient operation in remote locations without the need for an external power source. Its portability allows for on-site analysis, eliminating the need to transport samples to a laboratory. The instrument is designed to provide accurate and reliable results, making it an ideal choice for a variety of water quality monitoring applications.
Display
The Hach Pocket Colorimeter II features a large, backlit LCD display designed to provide clear and easy-to-read measurement results in various lighting conditions. The display is capable of showing multiple parameters, including the concentration of the analyte being measured, the test method used, and the date and time of the measurement. The backlit feature ensures that the display remains visible even in low-light environments, making it ideal for field applications. The display’s intuitive design enhances the user experience, providing a straightforward and efficient way to access and interpret measurement data.
Controls
The Hach Pocket Colorimeter II is designed with user-friendliness in mind, featuring a set of intuitive controls. Four easy-to-access buttons provide control over all the instrument’s functionalities. These buttons enable users to navigate through menus, select test methods, start measurements, zero the instrument, and access other key functions. The simple and straightforward control layout minimizes the learning curve for users, allowing them to quickly become familiar with the instrument and perform accurate measurements with ease. The design ensures that the device is accessible to a wide range of users, regardless of their prior experience with analytical instruments.
Sample Cell Compartment
The Hach Pocket Colorimeter II features a dedicated sample cell compartment designed to securely hold and illuminate the sample during measurement. The compartment is specifically engineered for compatibility with standard sample cells, ensuring accurate and reproducible results. The design incorporates a light source that shines through the sample, allowing the instrument’s sensor to measure the absorbance or transmission of light. This carefully designed compartment, along with the light source, plays a crucial role in the colorimetric analysis process, providing reliable data for accurate analyte concentration determination.
Power Source
The Hach Pocket Colorimeter II is powered by two AA batteries, providing a reliable and convenient power source for on-site testing. The instrument’s low power consumption ensures extended battery life, allowing for numerous measurements before requiring a replacement. The use of standard AA batteries makes it easy to obtain replacements globally, minimizing downtime and maximizing usability in various environments. The battery compartment is conveniently located on the instrument, offering simple access for replacement.
Getting Started
Before using your Hach Pocket Colorimeter II, it’s crucial to familiarize yourself with its components and ensure proper setup. This section will guide you through the initial steps, from unpacking the device to calibrating it for accurate measurements. Start by carefully removing all packaging materials, ensuring no components are missing. Then, refer to the provided instructions to assemble the instrument correctly, including the sample cell compartment and any accessories. Once assembled, proceed to calibrate the device using the recommended procedures, which will ensure accurate results for your subsequent tests.
Unpacking
Upon receiving your Hach Pocket Colorimeter II, carefully unpack the contents, ensuring no components are missing. The package typically includes the colorimeter itself, a user manual, pre-measured unit-dose reagents, sample cells, and a carrying case. Inspect all components for any damage during transit. Refer to the user manual for a detailed list of included items and their specific functions. The manual will guide you on storing and handling these components safely. Ensure you understand the purpose of each component before proceeding to the next step⁚ setting up the instrument.
Setting Up
Setting up the Hach Pocket Colorimeter II is straightforward. First, ensure the device is switched off. Next, carefully insert the batteries into the designated compartment, ensuring correct polarity. Refer to the user manual for the specific battery type and installation instructions. Once batteries are installed, turn on the colorimeter and verify its functionality. The display should illuminate, indicating proper power supply. It’s essential to familiarize yourself with the instrument’s controls and functions before proceeding to calibration. The manual provides a comprehensive guide to the controls and their usage.
Calibration
Calibration is essential for accurate measurement with the Hach Pocket Colorimeter II. Before each use, calibrate the instrument using a reagent blank or deionized water. Insert the blank into the sample cell compartment and close the lid. Press the designated key to initiate the calibration process. The display will show “- ‒ – -” followed by “ZERO/SCROLL.” Follow the on-screen prompts to complete the calibration. The meter will then be ready for measurement. Calibration ensures that the instrument is properly adjusted to compensate for any variations in the light source or other factors that could affect measurement accuracy.
Performing a Test
To perform a test using the Hach Pocket Colorimeter II, follow these steps⁚ 1. Prepare the reagents according to the instructions provided in the reagent bottle. 2; Prepare the sample as specified in the test method. 3. Insert the prepared sample into the sample cell compartment and close the lid. 4. Press the “START” or “MEASURE” button to begin the measurement process. The instrument will display the concentration of the analyte in the sample. 5. Record the results and interpret the data according to the test method.
Reagent Preparation
Reagent preparation is an important step in ensuring accurate test results. To prepare reagents for use with the Hach Pocket Colorimeter II, follow the specific instructions provided on the reagent bottle. These instructions may include steps such as dissolving tablets or powder in a specific volume of water, or mixing two or more solutions together. It is essential to use fresh reagents and to follow the preparation instructions carefully to ensure the accuracy of your measurements. Always refer to the reagent bottle label for specific instructions and safety precautions.
Sample Preparation
Proper sample preparation is crucial for obtaining accurate and reliable results with the Hach Pocket Colorimeter II. Before you begin, ensure your sample is representative of the overall water source or solution you’re analyzing. This might involve collecting a sample from different locations, mixing the sample thoroughly, or filtering out any debris that could interfere with the measurement. Always refer to the specific test method instructions for detailed guidance on sample preparation, including any required filtration, dilution, or temperature adjustments.
Measurement Procedure
The Hach Pocket Colorimeter II employs a straightforward measurement procedure. Begin by inserting a reagent blank or deionized water into the sample cell compartment and close the lid. Press the “ZERO/SCROLL” button to calibrate the instrument. Next, prepare your sample according to the test method instructions and fill the sample cell. Insert the sample cell into the compartment, close the lid, and press the “READ” button. The instrument will display the concentration of the analyte in the sample, based on the Beer-Lambert Law, which relates the absorbance of light to the concentration of the substance in solution;
Data Interpretation
The Hach Pocket Colorimeter II displays the concentration of the analyte in the sample, based on the Beer-Lambert Law. The instrument utilizes a pre-programmed calibration curve for the specific analyte being measured. The results are presented in the appropriate units for the test method, such as milligrams per liter (mg/L) or parts per million (ppm). The displayed data is a direct measurement of the analyte concentration in the sample. It’s important to note that the accuracy of the results depends on proper reagent preparation, sample handling, and adherence to the test method instructions.
Maintenance and Cleaning
Regular maintenance and cleaning are crucial for ensuring the accuracy and longevity of your Hach Pocket Colorimeter II. To maintain optimal performance, clean the instrument’s exterior with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials. Clean the sample cell compartment regularly with deionized water, ensuring it is completely dry before use. If the instrument is exposed to moisture, allow it to dry completely before storing. Store the Hach Pocket Colorimeter II in a clean, dry environment, away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter any issues with your Hach Pocket Colorimeter II, refer to the following troubleshooting tips. If the instrument displays an error message, consult the manual for specific instructions. If the instrument does not power on, check the battery compartment for proper installation and battery life. If the instrument displays inaccurate readings, ensure that the reagents are fresh and properly prepared. If the sample cell is dirty, clean it with deionized water. If the issue persists, contact Hach Technical Support for assistance.
Specifications
The Hach Pocket Colorimeter II offers a range of features and specifications, including a wavelength specific model with a 450 nm wavelength, a silicon detector, and a backlit LCD display. The dimensions of the instrument are 155 mm x 61 mm x 35 mm. The device is powered by batteries and offers a user-friendly interface with four buttons for easy operation. The Hach Pocket Colorimeter II is designed for measuring the transmittance or optical density of liquid samples, enabling accurate and reliable analysis.
Regulatory Compliance
The Hach Pocket Colorimeter II adheres to stringent regulatory standards for safety and electromagnetic compatibility. It complies with IEC 1000-4-2⁚ 1995 (EN 61000-4-2⁚ 1995) for electromagnetic immunity, ensuring reliable operation in various environments. The device also meets the requirements of the European Union’s EMC Directive (89/ 336/ EEC) and the EN 61326⁚ 1998 standard for electrical equipment used in measurement, control, and laboratory settings. This ensures that the instrument operates safely and does not interfere with other electronic devices. Supporting test records are available from Hach Company, further demonstrating the device’s adherence to regulatory requirements.