1. Introduction and Overview
The Senko MGT-P is a portable multi-gas detector designed for industrial environments. It is capable of simultaneously monitoring four different gases: Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S), and combustible gases (Flammable).
This device features a clear LCD display, bright visual alarms, loud audible alarms (95 dB), and a vibrator alarm to ensure immediate notification of gas hazards. Its robust design is built to withstand harsh working conditions, offering industry-leading alarm response times, customizable alarm levels, and comprehensive event logging capabilities.
The MGT-P is compatible with SENKO docking stations and SENKO IR Link for easy data download, calibration, and bump testing. It stores up to 30 events, including event logs, calibration logs, and bump test data for over two months, along with real-time data.
2. Safety Information
Always adhere to the following safety guidelines to ensure safe operation and prevent damage to the device or injury to personnel:
- Read the Manual: Thoroughly read and understand this user manual before operating the MGT-P detector.
- Calibration: Ensure the device is properly calibrated and bump tested according to the recommended schedule before each use or shift.
- Environmental Conditions: Operate the device within the specified temperature and humidity ranges. Avoid exposure to extreme conditions.
- Sensor Obstruction: Do not obstruct the gas inlet ports or sensors. Keep them clean and free from debris.
- Battery Safety: Use only the specified rechargeable battery. Do not attempt to open, puncture, or incinerate the battery.
- Maintenance: Only qualified personnel should perform maintenance or repairs. Do not attempt to disassemble the device.
- Alarm Response: Always respond immediately to alarms. Evacuate the area if necessary and follow established safety protocols.
3. Product Components
The Senko MGT-P Multi Gas Detector is a compact and robust device. Key components include:
- LCD Display: Shows real-time gas concentrations, battery status, and operational icons.
- Gas Sensors: Integrated sensors for O2, CO, H2S, and combustible gases.
- Alarm Indicators:
- Visual Alarms: Bright LED lights on the top and sides of the device.
- Audible Alarm: A loud 95 dB buzzer.
- Vibrator Alarm: Internal motor for tactile alerts.
- Control Buttons: Buttons for navigation, power, and function selection.
- Sampling Pump (Optional/Integrated): For drawing air samples from remote locations.
- Rechargeable Battery: Internal 2000 mAh Li-ion battery.
- Belt Clip: For easy portability and attachment.
Figure 3.1: Front view of the Senko MGT-P Multi Gas Detector, showing the LCD screen, control buttons, and alarm indicators. The device is orange with a clear top section revealing the display.
4. Setup
- Initial Charging:
Before first use, fully charge the MGT-P detector. Connect the provided charger to the device's charging port. The battery indicator on the LCD will show charging status. A full charge for the MGT-P (CAT. Comb sensor) typically takes approximately 24 hours for initial charge, and less for subsequent charges.
- Powering On/Off:
To power on, press and hold the power button until the display illuminates and the device performs a self-test. To power off, press and hold the power button until the countdown completes and the device shuts down.
- Initial Calibration/Bump Test:
It is crucial to perform an initial calibration or bump test to verify sensor functionality and accuracy. This can be done manually or using a SENKO docking station. Refer to the "Maintenance" section for detailed calibration procedures.
- Attach Belt Clip:
Securely attach the provided belt clip to the back of the device for convenient carrying during operation.
5. Operating Instructions
- Real-time Gas Monitoring:
Once powered on, the LCD display will show the real-time concentrations of O2, CO, H2S, and combustible gases. Ensure the readings are stable and within expected safe levels before entering any potentially hazardous area.
- Understanding Alarms:
The MGT-P is equipped with three types of alarms:
- Visual: Bright flashing LEDs.
- Audible: A loud 95 dB buzzer.
- Vibrator: A tactile vibration.
When gas concentrations exceed pre-set alarm thresholds, all three alarms will activate simultaneously. Immediately follow your company's safety procedures upon alarm activation.
- Event Logging:
The device automatically logs up to 30 events, including alarm events, calibration records, and bump test data. This data can be downloaded via a SENKO docking station or IR Link for analysis and compliance reporting.
- Using the Sampling Pump (if applicable):
If your MGT-P model includes a sampling pump, attach the sampling hose to the designated port. The pump allows for remote sampling of gas from confined spaces or hard-to-reach areas. Ensure the hose is clear and unobstructed during sampling.
6. Maintenance
Regular maintenance is essential for the accurate and reliable operation of your MGT-P detector.
- Daily/Pre-use Bump Test:
Perform a daily bump test before each use to confirm that sensors respond correctly to target gases and that alarms are functional. This can be done manually with a known concentration of gas or using a SENKO docking station.
- Regular Calibration:
Calibrate the device regularly, typically every six months, or as required by local regulations and company policy. Calibration ensures the accuracy of gas readings. Use certified calibration gas mixtures for this procedure.
- Battery Charging:
Recharge the device's battery as needed. The battery life for the MGT-P (CAT. Comb sensor) is approximately 24 hours of continuous operation. Avoid fully discharging the battery frequently to prolong its lifespan.
- Cleaning:
Wipe the exterior of the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure gas inlet ports are clear of dust and debris.
- Storage:
When not in use, store the MGT-P in a clean, dry environment within the specified temperature range.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low or depleted battery. | Charge the battery fully. |
| Inaccurate gas readings. | Sensor contamination or drift; calibration overdue. | Perform a bump test. If still inaccurate, perform a full calibration. Clean sensor inlets. |
| Alarms not activating. | Alarm settings incorrect; faulty alarm components. | Verify alarm thresholds. Perform a bump test to check alarm functionality. If alarms still fail, contact support. |
| Device displays "Sensor Error". | Sensor malfunction or end-of-life. | Contact Senko support for sensor replacement or service. |
| Short battery life. | Battery degradation; frequent alarm activations. | Ensure full charge cycles. If battery life significantly reduced, battery replacement may be needed. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | SP-MGT-P |
| Detectable Gases | Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Combustible Gas (Flam) |
| Gas Ranges | O2: 0 – 30% VOL CO: 0 – 500 ppm H2S: 0 – 100 ppm Combustible: 0 – 100% LEL |
| Sensor Technology | Electrochemical (for O2, CO, H2S), Catalytic (for Combustible) |
| Display | LCD with current reading |
| Alarms | Visual (bright), Audible (95 dB), Vibrator |
| Power Source | 2000 mAh rechargeable Samsung SDI Li-ion battery |
| Battery Life (MGT-P) | 24 hours (with CAT. Combustible sensor) |
| Operating Temperature | -20 °C ~ 45 °C (-4 °F ~ 113 °F) |
| Operating Humidity | 10% – 95% RH (non-condensing) |
| Dimensions (W x H x D) | 60 mm x 118 mm x 40 mm (2.36 in x 4.65 in x 1.57 in) |
| Weight | 240 g (8.47 oz) (Battery, clip included) |
| Event Storage | Up to 30 events (event log, cal log, bump test log for >2 months, real-time data) |
9. Warranty and Support
For detailed warranty information, technical support, service, or to purchase accessories and replacement parts, please contact Senko customer service or visit their official website. Ensure you have your product model number (SP-MGT-P) and serial number ready when contacting support.
Regular maintenance and adherence to the instructions in this manual will help ensure the longevity and optimal performance of your Senko MGT-P Multi Gas Detector.
