Wintact WT8811 4-Gas Compound Gas Monitor (LEL, O2, H2S, CO)

Wintact WT8811 Compound Gas Monitor

The Wintact WT8811 is a compound gas monitor that measures four gas concentrations in one instrument: combustible gas (0~100 %LEL), oxygen (0~30 %VOL), hydrogen sulfide (0~100 µmol/mol) and carbon monoxide (0~1000 µmol/mol). It uses high-quality gas sensors with good sensitivity and repeatability, an accuracy of ≤ ±5 %FS and a 90% response time of less than 30 seconds.

The colour screen shows either all four readings at once or a single gas with its maximum, minimum and average values (average of the last 4 minutes) together with the high and low alarm limits. Alarm settings are made separately for each sensor, and the light, sound and vibration alarms can each be switched on or off. The instrument continuously records up to 120,000 data, which can be reviewed on the screen as curves.

The shell is made of high-strength engineering plastics and compound non-slip rubber, dust- and explosion-proof, with an alligator clip on the back. According to the manufacturer, the monitor is widely used in petroleum, chemical, environmental protection, metallurgy, refining, gas transmission and distribution, biochemical medicine and agricultural research.

Key Features

• Four gases simultaneously: combustible gas (LEL), oxygen (O2), hydrogen sulfide (H2S) and carbon monoxide (CO).
• Colour-screen display with a user-friendly interface in Chinese or English and three backlight brightness levels.
• Three alarm forms: sound, light and vibration, with high and low alarm values set for each sensor.
• Data recording and review: continuously records 120,000 data (125 record groups of 1019 data each) with automatic storage at a set interval.
• Single and multiple measurement interfaces: real-time, maximum, minimum and average values.
• Rechargeable lithium battery: DC 3.7 V, 1800 mAh; charging time 6~8 h; standby time more than 8 h.
• Auto power-off function, date and time display and battery level indicator.
• Sensor calibration interface (for professionals only) with three calibration methods; the calibration period should not exceed one year.
• Standards: conforms to GB3836.1-2010, GB3836.4-2010, GB15322.3-2003, JJG693-2011, JJG365-2008, JJG695-2003 and JJG915-2008.

Package Contents

• Compound gas monitor (with alligator clip) × 1
• Manual × 1
• Charger × 1
• Data line × 1
• Transparent tube × 1
• Cover (with screws) × 1
• Packing box × 1