1. Introduction
The BTMETER BT-5800G Ammonia Gas Detector is a high-precision instrument designed for continuous quantitative analysis of ammonia (NH3) concentration. Utilizing an imported high-precision electrochemical sensor and single-chip microcomputer technology, it offers fast response, high accuracy, stability, and good repeatability. This device is ideal for monitoring ammonia levels in various environments, including metallurgy, power plants, farms, mines, chemical industries, scientific research, medical, pharmaceutical, and environmental protection fields.
It features a high-visibility dot matrix LCD for clear readings and is equipped with a rechargeable battery for portable use. The detector also includes temperature and humidity measurement functions, providing a comprehensive environmental assessment.
2. Safety Precautions
This device is an intellectual precise measurement apparatus. Please read through these instructions carefully before using it to ensure safe and proper operation.
2.1 General Safety Guidelines
- Avoid damaging the meter; keep it away from water and hot objects (temperatures above 50 °C).
- When the instrument alarms, it indicates that the measured value has reached the set alarm threshold. Take appropriate measures to protect the safety of yourself and others.
- If the meter will not be used for a long period, turn it off to prevent damage from battery leakage.
- The sensor (probe) is a consumable part. Protect it from dirt and damage. The sensor cannot be repaired and is not covered by the warranty.
- Always place the sealing rubber sleeve around the probe when the product is not in use.
2.2 Ammonia Hazard Levels
Understanding the potential hazards of ammonia is crucial for safe operation:
| Concentration of Ammonia in Atmosphere | Human Physiological Reaction |
|---|---|
| 5 ~ 10 ppm | The nose may be aware of the smell. |
| 20 ppm | Aware of the special smell of ammonia. |
| 40 ppm | A few people feel mild stimulation of eyes. |
| 100 ppm | A few minutes of exposure caused by ocular and nasal irritation. |
| 400 ppm | Causes throat, nasal cavity, and upper respiratory tract acute stimulation. |
| 700 ppm | Exposure for more than thirty minutes may cause permanent damage to the eye. |
| 1700 ppm | Severe cough, wheeze; thirty minutes can be fatal. |
| 5000 ppm | Severe pulmonary edema disease; a moment can be fatal asphyxia. |
3. Package Contents
Upon opening the package, ensure all items are present and in good condition:
- BTMETER BT-5800G Ammonia Gas Detector
- USB Charging Cable
- Carrying Case
- User Manual (PDF version available for download: Download PDF Manual)
4. Product Overview
Familiarize yourself with the components and display of your BT-5800G detector.
4.1 Device Components
- Power On/Off Button
- Increment Button
- °C/°F Temperature Unit Selection Button
- Decrement Button
- MODE Button
- Alarm Indicator Light
- Charging Indicator Light
- Alarm Setting Button
- Display Screen
- Sensor
- Charging Interface (DC 5V)
4.2 Display Explanation
- Ammonia concentration display area (NH3)
- Ammonia gas unit (ppm)
- Ammonia gas formula (NH3)
- AL1 indicator (First level alarm)
- Temperature Unit (°C/°F)
- Temperature Measured value
- AL2 indicator (Second level alarm)
- Battery indicator
- Humidity measured value (%RH)
- Humidity Unit (%RH)
5. Specifications
| Parameter | Value |
|---|---|
| Detection of Gas | Ammonia (NH3) |
| Measuring Range | 0-100 ppm |
| Resolution | 0.1 ppm |
| Basic Error | Less than ± 5% (F.S) |
| Response Time | Less than 60 seconds |
| Recovery Time | Less than 60 seconds |
| Repeatability | Less than ± 1% |
| Principle of Sensor | Electrochemical principle, life for two years (Replaceable) |
| Battery | Rechargeable Lithium Battery (18650 *1) |
| Display | Large screen liquid crystal display |
| Alarm | Acoustic, optical double alarm (80 dB), adjustable alarm value |
| Working Temperature | -20 ~ 50 °C |
| Working Humidity | 0-95% RH (Non Gel) |
| Dimensions (L x W x H) | 173mm (6.8in) x 73mm (2.8in) x 34mm (1.3in) |
| Weight | 420g |
6. Setup
6.1 Initial Charging
Before first use, or when the battery level indicator shows an empty battery symbol, charge the device fully. The BT-5800G uses a 1600mAh rechargeable lithium battery.
- Connect the provided USB charging cable to the DC 5V charging interface on the device.
- Plug the other end of the USB cable into a suitable USB power source (e.g., computer USB port, USB wall adapter, power bank).
- The charging indicator light will be green while charging.
- The charging indicator light will turn red when the battery is fully charged.
7. Operating Instructions
7.1 Power On/Off
Press the Power On/Off button (labeled with a power symbol) to turn the device on. Press it again to turn it off.
7.2 Changing Temperature Unit
Press the °C/°F button to switch between Celsius and Fahrenheit. The default unit is Celsius.
7.3 Setting Alarm Values
The device supports two alarm levels: AL1 (first level) and AL2 (second level).
- Press the ALARM button to enter the AL1 alarm setting mode.
- Press the ALARM button again to enter the AL2 alarm setting mode.
- While in AL1 or AL2 setting mode, use the Increment (up arrow) and Decrement (down arrow) buttons to adjust the numerical alarm value. A short press changes the value by 0.1 ppm, and a long press changes it by 1 ppm.
7.4 Auto Power Off (APO) Function
The device has an auto power off function that can be enabled or disabled.
- Press the MODE button to cycle through options.
- When "APO ON" is displayed, the auto power off function is enabled (device powers off automatically after 20 minutes of inactivity).
- When "APO OFF" is displayed, the auto power off function is disabled.
7.5 Alarm Indication
- AL1 (First Level Alarm): When the measured value reaches the AL1 setting, the alarm indicator light will flicker slowly, and the buzzer will sound slowly.
- AL2 (Second Level Alarm): When the measured value reaches the AL2 setting, the alarm indicator light will flash rapidly, and the buzzer will sound at a fast frequency.
8. Maintenance
8.1 Sensor Care
The electrochemical sensor is a consumable component with an approximate lifespan of two years. To maximize its life and ensure accurate readings:
- Keep the sensor probe clean and free from dirt or physical damage.
- Always replace the protective sealing rubber sleeve around the probe when the device is not in use.
- The sensor cannot be repaired and is not covered by the warranty if damaged due to misuse or lack of care.
8.2 Battery Care
- Charge the lithium battery promptly when the low battery indicator appears.
- If storing the device for an extended period, ensure it is turned off to prevent potential damage from battery leakage.
- If you remove the batteries while the meter is on, any custom alarm settings (AL1, AL2) will be lost. To save these settings, ensure the meter is turned off normally after configuration.
9. Troubleshooting
9.1 Common Issues and Solutions
- Device not turning on: Ensure the battery is charged. Connect the device to a power source using the USB cable and check the charging indicator light.
- Inaccurate readings: Ensure the sensor is clean and unobstructed. Avoid using the device in environments with extreme temperatures or humidity outside the specified operating range. The sensor has a 2-year lifespan and may need replacement after this period.
- Alarm sounds unexpectedly: The alarm indicates that the measured ammonia concentration has reached or exceeded your set alarm thresholds (AL1 or AL2). Verify the environment for ammonia presence or adjust alarm settings if necessary.
- Display is blank or frozen: Try turning the device off and on again. If the issue persists, ensure the battery is fully charged.
10. User Tips
- Comprehensive Monitoring: Remember to utilize the integrated temperature and humidity measurement functions for a more complete assessment of your environment.
- Clear Readability: The large LCD screen with backlight ensures clear readings in various lighting conditions.
- Sensor Protection: Always keep the sensor covered with its rubber sleeve when not in use to protect it from dust and damage, extending its lifespan.
- Battery Management: For prolonged storage, ensure the device is fully powered off to prevent battery drain and potential damage.
11. Frequently Asked Questions (FAQ)
- Q: Does the device require calibration?
- A: No user calibration is required; the device is factory calibrated. The electrochemical sensor has a lifespan of approximately two years.
- Q: How do I know when to charge the battery?
- A: The device will display a low battery icon (empty battery symbol) when charging is needed. The charging indicator light will be green when charging and red when fully charged.
- Q: What should I do if the alarm sounds?
- A: If the alarm sounds, it indicates that the measured ammonia concentration has reached the set alarm value. Take immediate measures to ensure safety and protect individuals and property.
12. Warranty and Support
For any problems or concerns, please contact our support team. We are committed to providing prompt assistance.
12.1 Contact Information
Email: AFTERSALES1010@HOTMAIL.COM
12.2 Information to Provide for Support
To ensure immediate solutions and quick processing of your requests, please include the following details in your email:
- Order Number
- Platform of Your Purchase
- Full Model Number (BT-5800G)
- Detailed Description of the Problem (attaching videos or photos can help us troubleshoot more effectively).
12.3 User Manual (PDF)
A downloadable PDF version of this user manual is available for your convenience: