WatchGas SST4 Micro & SST4 Mini Multi-Gas Detectors
The SST4 range is designed with simplicity, size, and the user in mind. With its compact yet robust design, the SST4 is there when you need it. With a wide choice of user options, the SST4 range is perfectly suited for any use, such as for use at high temperatures, in hazardous and classified environments, and for critical applications. Ensuring compliance and demonstrating compliance with high occupational safety standards is now easier using the SST4 range; simple configuration via the Watchgas app, calibration and bump testing with storage and reporting to the cloud via the RTR software (optional). This way, the instrument fleet is always under control from a management, maintenance, and supervision perspective.
Applications
- Petrochemical plants
- Oil & Gas - extraction and production, distribution, storage
- Refineries, shutdown periods
- Steel plants
- Transport
- Marine
- Telecommunications
- Emergency services
- Laboratories
- Power generation
- Wastewater and waste treatment plants
Features and Benefits
Easy Configuration via NFC
The integrated Near Field Communication (NFC) as standard allows for a wide range of solutions depending on your needs. Simply pair it with the WatchGas app to manage your instrument fleet, perform bump tests, calibrate, assign, or download event logs. Consult the Tap & Go application note for more information on the benefits of NFC.
Alerts and Alarms
As a safety device, it is essential that the device clearly alerts users to the presence of gas. The SST4 has a 95 dB alarm at 30 centimeters, which is the industry standard and required in noisy industrial environments. High, high-high, low, low-low, TWA, and STEL alarms can be configured by the customer and automatically updated directly on the device or via the SST Dock.
Wireless Charging
In dirty and harsh environments where gas detectors are often used, connectors may fail to make contact or become damaged. The SST4 has been designed with inductive charging, allowing for simple and fast charging without the risk of cables and ports being damaged or failing. A full charging cycle takes 2-3 hours. The SST4 range includes various accessories for battery charging.
Robust Design
Designed with the toughest environments in mind, the SST4 offers an ingress protection rating of IP65-68. The housing is a double-snap enclosure that provides extra robustness without compromising quality. Screen protectors positioned on both sides of the display serve to protect the LCD display from scratches and are necessary due to the smaller sensor profile.
Sensors
Utilizing the latest solid-state technologies, our sensors for O2, H2S, SO2, and CO offer great stability and reliability even at extreme temperatures and critical environmental conditions. The special technology used for our toxic gas sensors allows for very small dimensions and a longer lifespan, thanks to the elimination of electrolytic cells. The SST4 range can use three different %LEL sensors for flammable gases, allowing for correct and precise detection and perfect compatibility for every application requirement and safety condition.
SST4 Maintenance Specifications
| Dimensions | SST4 Micro: 103.9 mm x 62.4 mm x 26.1 mm SST4 Mini: 107.9 mm x 62.4 mm x 26.1 mm *Dimensions are indicated without the crocodile clip. Please add 4 mm depth for dimensions with the crocodile clip. |
| Weight | SST4 Micro: 184g SST4 Mini: 188g |
| Ambient Temp. | -40 to +60°C / -40 to +140°F |
| Ambient R.H. | 5% - 95% RH (non-condensing) |
| Battery Life | SST4 Micro: LEL Low Power Catalytic – 48hr SST4 Mini: LEL Catalytic Bead Sensor – 13hr SST4 Mini: LEL NDIR – 200hr |
| Charger Induction | 2-3 hours |
| Event Logging | 100 events |
| Data Logging | 6 months |
| Protection Rating | IP65-68 |
| NFC Communication | NFC |
| Certifications and Approvals | North America: - SST4 Micro / SST4 Mini (non-IR) Class I Division 1 Group A,B,C,D T4 US: Class I Zone 0 AEx ia IIC T4 Ga Canada: Ex ia IIC T4 Ga - SST4 Mini (IR) Class I Division 1 Group A,B,C,D T4 US: Class I Zone 0 AEx ia op is IIC T4 Ga Canada: Ex ia op is IIC T4 Ga ATEX/IECEx/UKEX: - LEL-LPC and LEL-CAT II 1 G Ex ia IIC T4 Ga I M1 Ex ia I Ma -40°C ≤ Tamb ≤ +60°C - LEL-IR sensor II 1 G Ex ia op is IIC T4 Ga I M1 Ex ia op is I Ma -40°C ≤ Tamb ≤ +60°C EN 50270:2015+AC:2016, EN 301 489-1 V2.2.3 EN 301 489-3 V2.1.1, RoHS EN63000:2018 |
| Warranty | 2-year warranty |
Sensor Specifications
| SENSOR TYPE | RANGE | RESOLUTION | LOW ALARM | HIGH ALARM | TWA | STEL |
| O2 Oxygen | 0-25% vol. | 0.1% vol. | 19.50% | 23.50% | N/A | N/A |
| LEL Low Power Catalytic (SST4 Micro) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| LEL CAT Catalytic Bead Sensor (SST4 Mini) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| LEL IR Sensor (Infrared) LEL (SST4 Mini) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| CO Carbon Monoxide | 0-2000 ppm | 1 ppm | 35 ppm | 200 ppm | 20 ppm | 100 ppm |
| H2S Hydrogen Sulfide | 0-500 ppm | 0.1 ppm | 10 ppm | 15 ppm | 10 ppm | 15 ppm |
| SO2 Sulfur Dioxide | 0-100 ppm | 0.1 ppm | 5 ppm | 10 ppm | 2 ppm | 5 ppm |
Factory-set alarms can be modified according to the individual needs of the user or plant via the SST Dock and WatchGas SST Application.
Accessories
- External Filter
CODE:SST-MICRO-XFIL-10
CODE:SST-MINI-XFIL-10 - Gancio (optional) (sold separately)
CODE:SST4-POUL-10 - Universal Charger for SST Range
CODE:SST-IND-S - Manual Pump
Code: D5019710 Recommended for use with Last-o-More tubing - Multi-charger station for 20 detectors
CODE: SST-STACK-CHR (Extras required) - Aluminum Carrying Case SST4 Micro/Mini
Code: 460039 - SST Dock
CODE: SST-DOCK
Software
- RTR Software for compliance and data reporting via cloud
CODE: SST-Software
