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Summary of Contents for WatchGas SST1
- Page 1 User Manual SST1 2 & 3-Year Model Single Gas Device SST1-2-3-YEAR-MAN-ENG-v1.1 11.04.2025...
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Page 2: Table Of Contents
Contents Safety Information - Read First 1. Introduction 6. Communicating With the SST1 1. 1 . SST1 2 and 3-Year Model Product Descrip- 6. 1 . Communicating With the SST1 in Hiberna- tion tion 1.2. Configuration Mobile Application 1.3. Sensor Poisons and Contaminants 7. - Page 3 Replacement 14.3. Detector Maintenance – Sensor Replacement 15. Certifications and Approvals 16. Contact Details...
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Page 4: Safety Information - Read First
To ensure personal safety, read Warning and the Cautions before using the detector. The SST1 Gas Detectors are personal life safety devices designed to detect the presence of certain toxic gases. The accuracy of ambient gas reading(s) is dependent upon factors such as accuracy of the calibration gas standard used for calibration and frequency of calibration. -
Page 5: Introduction
2 to 3 years — no calibration, no battery replacement, no charging, and no stress. The device is easy to use and reduces the need for extensive training. The SST1, coupled with the SST Dock, allows for the fastest bump testing on the market and makes fleet management extremely simple. -
Page 6: Sensor Poisons And Contaminants
1.3 Sensor Poisons and Contaminants Several cleaners, solvents, and lubricants can contaminate and cause permanent damage to the SST1 sensors. Before using cleaners, solvents, and lubricants in close proximity to the SST1 detector sensors, read the following cautions and refer to the lists below. -
Page 7: Overview Of Detector
2. Overview of Detector Configuration of the SST Range products, including the SST1, is done with the WatchGas Device Link Application. The app can be downloaded from Google Play and the Store, or by scanning the appropriate QR code in Section 1.2. -
Page 8: Overview Of The Sst1
2.2 Overview of the SST1 Symbols Description Liquid crystal display (LCD) Visual alarm bars Audiable alarm Screen scratch protectors Gas identification Pushbutton Sensor Housing Alligator Clip Serial number NFC antenna Figure 6. Overview of the SST1 Certification label Table 1. Overview of the SST1... -
Page 9: Display Elements Of The Sst1
2.3 Display Elements of the SST1 Symbols Description Alarm Notification Low Alarm High Alarm Short Term Exposure Alarm Time Weighted Average Alarm Hydrogen sulfide Sensor Sulfur dioxide Sensor Carbon monoxide Sensor Oxygen Sensor Unit Expired / Circuit Fault Compliance / Diagnostic Failure... -
Page 10: Pushbutton
2.4 Pushbutton To activate the SST1 detector, press and hold the pushbutton (the big yellow button on the front of the device) and a 5 second countdown will start. Keep pressing the pushbutton until the countdown ends, after which the detector will then turn on. -
Page 11: Activating The Detector
Depending on the SST1 model, the detector will proceed to indicate its remaining operational life. When the start-up has been completed, the detector will remain turned on. Turning the detector off is not possible by means of pressing the pushbutton on the SST1 device. To turn off the detector, refer to the Hibernation section. -
Page 12: Days Or Less Remaining
3.4 45 Days or Less Remaining When the operating life countdown reaches 45 days or less before expiry, the SST1’s display format changes to show the remaining operating life in days. This countdown continues until it reaches 24 hours or less before expiry. -
Page 13: Alarms Indicators And Warnings
4. Alarms Indicators and Warnings A gas alarm is triggered when the sensor detects a gas concentration surpassing the predefined alarm setpoints. The alarm remains active until the gas concentration returns to a safe level. NOTE: battery life decreases rapidly during alarm conditions due to heightened power consumption. 4.1 Low Alarm When the gas concentration exceeds the Low alarm setpoint it will display LOW and produce the alarm as per below (1x per second):... -
Page 14: Factory Alarm Setpoints
4.6 Compliance and Non-Compliance The SST1 will indicate device compliance by showing the happy smiley icon ( ) , and flash the green compliance LED every 5 min, if enabled. The detector will show as compliant when below items are true: •... -
Page 15: Compliance Interval Exceeded
It is no longer displayed when more than 24 hours have passed since the last alarm, when the SST1 detector is connected to a SST Kiosk or Device link, or when a successful bump test/calibration is performed via an SST Dock, or manually. -
Page 16: Zero The Sensor
WatchGas recommends zeroing the O2 sensor once every 24 hours, or when the Automatic Zero Reminder is displayed for O2 models. For all other models, WatchGas recommends periodic zeroing of the sensor of at least once every 180 days (6 months). -
Page 17: User Menu
5. User Menu The SST1 features a user menu that can be entered by pressing the pushbutton once. Upon pressing the pushbutton the next menu screen will be displayed in the following order: 5.1 Peak Reading If the detector has measured a gas concentration above the alarm setpoint within the last 24 hours, the peak reading will be displayed. -
Page 18: Clear Peak
When the pushbutton is pressed again, the SST1 detector will return to measurement mode. NOTE: the SST1 detector will automatically return to measurement mode if no pushbutton is pressed, or when a gas alarm occurs. -
Page 19: Communicating With The Sst1
To activate NFC, press and hold the pushbutton for 3 seconds until the SST1 detector beeps once. The NFC icon is now displayed in the upper right corner of the device. The SST1 detector is now able to communicate with the WatchGas Device Link, SST Dock, SST Kiosk, and RTR Software. -
Page 20: Device Link
SST1 detectors to a user and site. When an unassigned SST1 connects to the Device Link, the user is prompted to input the User ID and Site information. Once entered, these settings can be transmitted to the SST1 using NFC, effectively assigning the User ID and Site to the detector in question. -
Page 21: Device Link Event Logs
Compliance checks, including instances where a non-compliant detector is confirmed by the Device Link User. 100 Event Logs can be stored in the SST1 detector. When full, the oldest Event Log entry will be overwritten with the newest one. NOTE: Event logs cannot be cleared from the Device Link. -
Page 22: Device Link Single Device Setup
7.4 Device Link Single Device Setup The Single Device Setup in the WatchGas Device Link mobile application can be used to configure the SST1 detector. The Single Device Setup can be accessed through the Device Link menu, with the password “service”. -
Page 23: Sensor Settings
Calibration • Enable Expiry: Enable/disable calibration interval. • Calibration interval: Calibration interval in days. Bump • Enable Expiry: Enable/disable calibration interva. • Calibration interval: Calibration interval in days. • Bump speed: Set % of gas applied required to pass bump test. - Fast: 50% - Medium: 70% - Slow: 90%... -
Page 24: Device Link Saved Configurations
In alarm: Total minutes the detector has been in alarm 7.5 Device Link Saved Configurations Saved Configurations in the WatchGas Device Link Application can be used to create saved configuration files that can be used to quickly and easily configure multiple detectors. -
Page 25: Device Link Unassign
7.6 Device Link Unassign The Unassign function can be used to unassign an SST1 detector. It will clear the User ID in the SST1 detector. Optionally, the Site ID can be cleared as well. -
Page 26: Device Link Maintenance
4. Activate NFC on the detector 5. Connect the detector to the Device Link or SST Kiosk Upon connecting an SST1 detector to the Maintenance screen, the detector and component serial numbers are displayed. Below each of the serial numbers, a star rating is displayed, indicating component health: •... - Page 27 Last calibration NOTE: When changing components, component serial numbers must be changed using Device Link Maintenance, refer to the SST1 Maintenance section. WARNING: Only substitute with original WatchGas parts. Substitution of parts always requires a full calibration prior to use.
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Page 28: Bump Test And Calibration
Last-O-More. 8.1 Manual Bump Test When no SST Dock is available, a manual bump test can be performed. To perform a Bump Test on the SST1 detector: 1. Transition to a standard ambient atmosphere with 20.9% oxygen concentration, free of any hazardous gases. -
Page 29: Manual Calibration
If the Bump Test fails repeatedly, perform a Calibration. The SST1 detector will automatically lock after 10 consecutive failed Bump Tests. NOTE: The SST1 detector shown on the Device Link is only a simulated example. The real Bump Test result must be viewed on the SST1 detector itself. - Page 30 The user will be prompted to check the visual, audible, and vibration alarms, as well as to visually inspect the SST1 detector for any damage. The results of these checks must be entered into the Device Link. Additionally, the name of the person carrying out the calibration must be recorded.
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Page 31: Firmware Upgrade
5. Connect the SST1 detector to the Device Link, ensuring that the connection is not lost. 6. Wait for the NFC file transfer to finalize. This may take several minutes. The SST1 will then reboot upon receiving the firmware file. -
Page 32: Troubleshooting
Table 5. Troubleshooting NOTE: This troubleshooting guide assumes that the SST1 detector runs on the latest firmware version. Refer to the Firmware Upgrade section on how to upgrade the SST1 firmware version. -
Page 33: Failure Codes
Additionally, certain faults may activate the audible alarm to further draw attention to the situation. Repeated faults will result in the SST1 being locked. A locked SST1 is rendered inoperable and must be handled by authorized personnel, or taken to a WatchGas Service Center for servicing. -
Page 34: Unlocking The Sst1 Detector
SST1 Maintenance section. An SST1 detector that has been locked because its activation time has expired can be unlocked by pressing the “Unlock” button. Service personnel must assess the battery condition by star rating and total minutes in alarm. If the battery’s lifespan cannot be guaranteed for the additional detector lifetime, the battery must be replaced. -
Page 35: Sst1 Spare Parts And Accessories Lists
NOTE: SST1 detector maintenance may only be performed by trained/authorized individuals and/or service center personnel. NOTE: SST1 parts may only be replaced by original WatchGas parts, as per the spare parts lists table. Substitution of parts may impair detector function and intrinsic safety. -
Page 36: Detector Accessories - External Filter
13.1 Detector Accessories – External Filter NOTE: Only original WatchGas parts may be used as SST1 detector accessories. Substitution of parts may impair detector function and intrinsic safety. WatchGas strongly recommends utilizing an external filter in applications where dust, dirt, or other debris may be present. -
Page 37: Sst1 Maintenance
14. SST1 Maintenance 14.1 Detector Maintenance – Battery Replacement NOTE: the SST1 battery is non-user replaceable. The battery may only be replaced by authorized personnel and/or WatchGas service centers. To replace the SST1 battery: 1. Turn off the unit by selecting Hibernation mode in the Device Link. - Page 38 5. Secure the unit by tightening the four screws on the back using a PH00 screwdriver, applying 0.7 N/m torque, and turning the screws clockwise. 8. In the Device Link Maintenance, enter the new sensor SN. Input the settings into the SST1 detector. 9. Perform Calibration on the unit before putting it back into use.
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Page 39: Certifications And Approvals
15. Certifications and Approvals Intrinsic Safety: II 1 G Ex ia IIC T4 Ga I M1 Ex ia I Ma IECEx EXV 22.0030X ExVeritas 22ATEX1314X ExVeritas 22UKEX1315X EU conformity www.watchgas.com RoHS compliant Standard IEC 60079-11:2013 IEC 60079-0:2020 EN IEC 60079-0:2018 EN 60079-11:2012... -
Page 40: Contact Details
16. Contact Details EMEA Klaverbaan 121 2908 KD Capelle a/d IJssel The Netherlands info@watchgas.com www.watchgas.com Americas 313 N. State Hwy 342 Red Oak, TX 75154, USA info@watchgasusa.com www.watchgasusa.com APAC Woods Square Tower 1, 12 Woodlands Square, #11-71, Singapore 737715 info@watchgas.com www.watchgas.com...
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