SST1 Single Gas Device
User Manual
SST1 SINGLE GAS DEVICE

READ BEFORE OPERATION

The SST1 Gas Detectors are personal safety devices designed to detect the presence of specific toxic gases Hydrogen Sulfide (H2S) or Carbon Monoxide (CO) or Sulfur Dioxide (SO2) or Oxygen (O2) deficiency. For safety reasons, users need to be properly trained in the use of the equipment and appropriate actions in the event of an alarm condition.
WARNING

1. Do not attempt to replace the internal components. This will void the intrinsic safety rating and will void the warranty of the product. Unless replaced with original WatchGas parts.
2. Periodically test the response of the sensor by exposing the detector to a target gas concentration that exceeds the alarm setpoint. Manually verify that the audible, vibration and visual alarms are activated.
3. Ensure the monitor is switched on, sensor and audible port are clean prior to use.

CAUTION / SPECIAL CONDITIONS

1. All inspection should be performed in a clean and hazardous free environment.

2. The detector can be cleaned with a soft damp cloth using a neutral cleaner (e.g ACL Staticide).
   NOTE: Do not use solvents, soaps or polishes.

3. Bump test the response of the sensor by exposing the detector to a target gas concentration that exceeds the alarm setpoint. Manually verify that the audible, vibration and visual alarms are activated.

4. This product is a gas detector, not a measuring device.

5. Ensure the monitor is switched, sensor and audible port are clean prior to use.

6. For optimal performance, periodically zero the sensor in a normal atmosphere (20.9% v/v O2) that is free of hazardous gas.

7. Activate the detector before activation date on the box or inspect battery capacity.

8. The equipment is intended for use in hazardous atmosphere in air with normal oxygen content not exceeding 21 % v/v.

9. The end-user shall contact equipment manufacturer if the antistatic film on the LCD display is damaged.

The toxic gas sensors (CO, H2S, SO2) do not require calibration for the life of the product, however we recommend bump testing see our bump test recommendations below:

• Bump Test if the detector has been subjected to physical impact, liquid immersion, an Over Limit alarm event, custody changes, or anytime the detector’s performance is in doubt.
• Bump Test by exposing the detector to a known concentration of target gas that exceeds the low alarm set points. The Bump Test must be performed manually and makes sure to test in a clean air environment.
• If a unit fails Bump Test, please calibrate the detector. If the unit fails Calibration, please discontinue use of the detector (locks after 10 failed calibrations).
• The accuracy of the SST1 is dependent upon the quality of target gases. The toxic gas sensors do not need to be calibrated if in warranty, but we recommended a regular Bump Test.
• The SST1 is a gas detector, and not a analyser or gas measuring device.
• The SST1 contains a lithium battery that must be disposed of in the correct manner, check local country requirements.
• Do not attempt to replace the battery or sensor, this product is designed to be disposable. Changing these components will void the warranty.
• If you suspect any malfunction or have any technical problems please contact WatchGas or a local verified partner.

DEVICE OVERVIEW

The SST1 is a portable, single gas device, the devices are disposable and operate for 2 years or 3 years (O2 is 2 years only). Designed as maintenance free devices there is no
need to replace sensors, batteries or any other key components SST1 detects the presence of specific gases, H2S (Hydrogen Sulfide), CO (Carbon Monoxide), SO2 (Sulfur Dioxide) and O2 (Oxygen) deficiency giving a low and high alarm indication to alert users of gas presence (STEL and TWA in real time mode).
SST1 is designed with ease of use, with its one button operation and use of NFC makes it easy to configure device and gives full compliance. Its rugged design can handle the toughest of industrial environments and protects users against gas exposure.

1. LCD display
2. Visual alarm bars
3. Audible alarm
4. Screen scratch protectors
5. Gas identification
6. Button| 7. Sensor
8. Housing
9. Alligator clip
10. Serial number
11. NFC antenna
12. Certification label
---|---

DISPLAY
CAUTION: If the display is missing icons or cannot be clearly read, please contact WatchGas or local authorized partner.The detector utilizes a LCD to visually display its status. In the absence of gas, real time mode will display real-time reading. In those cases where gas is present, the display will automatically shift to a display that shows gas concentration. NOTE: The display mode can be changed to suit the user in the WatchGas App.

ALARM

ALARM| Alarm Notification
LOW| Low Alarm
HIGH| High Alarm
STEL| Short Term Exposure Alarm
TWA| Time Weighted Average Alarm
SENSORS
H²S| Hydrogen Sulphide Sensor
C²| Carbon Monoxide Sensor
O²| Oxygen Sensor
S O²| Sulpher Dioxide Sensor
WARNINGS
LOCK| Unit Expired / Circuit Fault
| Compliance / diagnostic failure
| Peak alarm seen last 24 Hrs
INFORMATION

| Product Compliant

| Product Non-Compliant
CAL| Calibration Required
BUMP| Bump Required

| NFC in Communication
| Button Promt
UNIT OF MEASURE
| Percent Volume (02)
PPM| Parts Per Million (H25 / CO/ S02)
MG/M3| Milligrams per Cubic Meter
TIME
| Real Time Clock
MM| Months Remaining on Device
DD| Days Remaining on Device

ACTIVATING THE DETECTOR

To activate the detector within the validity period indicated on the box, press and hold down button for approx 5 seconds. On activation the detector will sound the audible alarm, flash and will enabale stabilization in sequence. At this time, the  emaining time is displayed on the screen. A successful activation will display the life remaining as 24 or 36 months (O2: 24 Months) or the reading value  or sensor on the detector if configured for real time monitoring.

DAILY USAGE INFORMATION SCREEN

A short button press allows for the review of the device information EVENT LOG
SST1 stores the last 100 alarm events. The log system stores events by first in first out (FIFO). For example, the 101st event will replace the first event. This event is stored in the detector and can be downloaded using WatchGas App and reviewed. The stored information is the following:

• The detector serial number
• Number of events
• Time elapsed since the gas alarm occurred
• Duration of the alarm
• Type of alarms – Low / High or TWA or STEL
• Compliance status
• Calibration / Bump test results

BUMP TEST
Bump Test intervals can be change using the WatchGas App. If switching of bump toggle off in app, the detector will not display the bump-test request. If the detector is due the bump-test, the BUMP icon on the bottom left of screen will be visable. The bump-test can be performed manually with Bump gas and the WatchGas App or by using the SST-DOCK. SELF TEST Prior to daily use, the user must perform a self- test to ensure the device is safe for operation.
STEP 1: When a self-test is required the gas icon will flash at the bottom of the screen.
STEP 2: Press and hold the button for more than 3 sec. First the unit will give a single beep indication NFC on keep the button pressed untill a double beep and release. After pressing the button, the following screen will display and the unit will perform the following operations: (1) The right and left side LEDs light up after emitting audible beep and vibration. (2) All LCD display icons appear. (3) It will diagnose the sensor. Self Test is then completed. The period of self-test can be changed in the WatchGas App.

BUTTON FUNCTION

Short press – to through menu
1 sec press single beep – release NFC activated and NFC Icon on
3 sec press double beep – release and selftest activated
In real time mode only:
Press more than 5 sec to zero calibrate.
Press more than 10 sec to reset STEL/TWA alarm.
ALARM TYPES

Low interval of audible and visual alarms| TWA and STEL Alarm – Mid interval of audible and visual alarms| High Alarm – Fast Interval of  udible and visual alarms

ALARM SET POINTS
Default factory alarm set points

These set points can be changed using the WatchGas App. To display the detector alarm set points, press the button on the front of the detector.
CALIBRATION FOR O2 DETECTOR
The SST1 O2 detector is set up to prompt for a calibration every day.
When the calibration icon and the button prompt icon are displayed (Step 1), it is an indication to perform a O2 sensor calibration. At this time, press the button for more than 5 seconds and the O2 calibration started (Step 2). If the button is released during the calibration, the calibration will be aborted and the calibration request icon is once again displayed.

PRODUCT INFORMATION

PRODUCT CODE

PART NUMBER| DESCRIPTION| SENSOR RANGE| SPAN GAS| CALIBRATION PART NUMBER
---|---|---|---|---
SST1-H-24| H2S 2 Year Fixed Life| 500 ppm| 25 ppm| CAL-H-58
SST1-M-24| CO 2 YearFixed Life| 2000 ppm| 100 ppm| CAL-M-58
SST1-0-24| 02 2 YearFixed Life| 25% Vol| 18 vol%| CAL-0-58
SST1-S-24| SO2 2 Year Fixed Life| 100 ppm| 5 ppm| CAL-S-58
SST1-H-36| H2S 3 Year Fixed L ife| 500 ppm| 25 ppm| CAL-H-58
SST1-M-36| CO 3 YearFixed Life| 2000 ppm| 100 ppm| CAL-M-58
SST1-0-36| 02 3 YearFixed Life| 25% Vol| 18 vol%| CAL-0-58
SST1-S-36| SO2 3 Year Fixed Life| 100 ppm| 5 ppm| CAL-S-58

SPECIFICATIONS

SIZE
83 × 49 × 20 mm (3.3 × 1.9 × 0.8 in)
WEIGHT
88 g (3.1 oz)
TEMPERATURE
-40 ~ 60°C (-40 ~ 140 F)
HUMIDITY
5 ~ 95 %RH (Non-condensing)
INGRESS PROTECTION
IP67 / IP68
AUDIO ALARM
Buzzer (~ 95 dB @30 cm)
VISUAL ALARM
LED
VIBRATING ALARM
Vibrator (Operate more than -8°C) 3.6Vdc, 1.65Ah, Lithium battery (primary battery)
BATTERY LIFE
24/36 months of operation (O2: 24 months)
2 minutes of alarm per day
EVENT LOG STORAGE
Last 100 events
SHELF LIFE
1 year

LIMITED WARRANTY

Where a product within the warranty period has a defect or a quality issue, WatchGas provides a buyer with a repair or a replacement for free of charge either by WatchGas or through an authorized Partner / Service Center. This warranty is valid only on the origin buyer making a purchase personally. Also, this warranty is valid only if the detector is activated by the date on the package.
This warranty does not include:

1. fuses, disposable batteries, or routine replacement of parts due to the normal wear and tear of the product arising from use.
2. any product which in WatchGas opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation, handling, or use.
3. any damage or defects attributable to repair of the product by any person other than an authorized dealer, or the installation of unapproved parts on the product.

The obligations specified this warranty are conditional on:

1. proper storage, installation, calibration, use, maintenance and compliance with the product manual instructions and any other applicable recommendations of WatchGas;
2. the purchaser promptly notifying WatchGas of any defect. No products shall be returned to WatchGas until receipt by the purchaser of shipping instructions from WatchGas; and
3. the right of WatchGas to require that the purchaser provide proof of purchase such as the original invoice, bill of sale or packing slip to establish that the product is within the warranty period.

In no event shall WatchGas liability hereunder exceed the purchase price actually paid by the buyer for the product.
The buyer agrees that this warranty is the buyer’s sole and exclusive remedy and is in lieu of all other warranties, express or implied, including but not limited to any implied warranty or merchantability or fitness for a particular purpose. WatchGas shall not be liable for any special, indirect, incidental, or consequential damages or losses, including loss of data, whether arising from breach of warranty or based on contract, tort, or reliance on any other theory. Some countries or states do not allow limitation of the term of an applied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer.
If any provision of this warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other
provision.

Intrinsic Safety:
II 1 G Ex ia IIC T4 Ga
I M1 Ex ia I Ma
IECEx EXV 22.0030X ExVeritas 22ATEX1314X
ExVeritas 22UKEX1315X
Int.Safe: Cl I Dv 1, Gr A,B,C,D T4
-40°C ≤ Tamb ≤ +60°C
EU conformity www.watchgas.com
RoHS compliant
Standard
IEC 60079-11:2011
IEC 60079-0:2017

FOR MORE INFORMATION
www.watchgas.com
info@watchgas.com
Americas
313 N. State Hwy 342
Red Oak, TX 75154
SST1 User Manual | EN | 1.0
Europe
Klaverbaan 121
2908 KD Capelle aan den IJssel
The Netherlands
APAC
Woods Square Tower 1,
12 Woodlands Square,

11-71, Singapore 737715

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