GX-2012 – Máy đo khí độc: LEL, O2, CO, H2S
Model: GX-2012
Hãng sản xuất: RKI – Mỹ
Tham khảo tại: http://www.rkiinstruments.com/pages/gx2012.htm
1. Tính năng kỹ thuật:
- Monitors ppm LEL, % volume methane, O2, CO and H2S
- 0 to 100% volume methane option
- Auto-ranging display of % LEL and % volume
- 3 Operating modes: Normal, leak check, & bar hole
- Leak check mode:
§ PPM leak detector, detects down to 100 ppm CH4
§ Adjustable display ranges: 500/1000/2000/5000 ppm
§ Visual / audible pulses change with gas concentration
§ CO display in leak check mode, ideal for residential investigations
- Barhole test mode for underground leak checks
- Status indicators: Pump active, microprocessor status and battery level
- Internal sample drawing pump with up to 50 foot range
- Vibration, visual, and audible alarms
- Automatic backlight during alarms
- Bump test and calibration reminder with lock out option
- Lithium ion or alkaline battery packs (interchangeable)
- Alarm latching or non-latching
- High impact, dust and water resistant design
- Up to 600 hours of datalogging with alarm trends
- Snap-logging - on demand data recording
- TWA and STEL readings with lunch-break mode
- Intrinsically safe, ATEX/IECEx/CE or CSA/CE (Optional)
- 2 year warranty
2. Ứng dụng:
- Personal monitoring
- Confined space entry
- Refineries / petrochemical
- Chemical plants
- Hazardous material
- Water / wastewater treatment
- Fire services
- Mining
3. Thông số kỹ thuật:
Gas Detected
|
Combustible Gases
(Methane as standard) |
% Volume
Methane |
Oxygen (O2)
|
Hydrogen Sulfide (H2S)
|
Carbon Monoxide (CO)
|
Detection Principle
|
Catalytic combustion
|
Thermal conductivity
|
Galvanic cell
|
Electrochemical cell
| |
Detection Range
|
0 ~ 100% LEL
0 ~ 500 / 1,000 / 2,000 / 5,000 ppm |
0 ~ 100% Vol.
|
0 ~ 40% Vol.
|
0 ~ 100 ppm
|
0 ~ 500 ppm
|
Accuracy Statement
(whichever is greater) |
± 5% of reading or
± 2% LEL (LEL mode only) |
± 5% of reading or ± 2% of full scale
|
± 0.5% O2
|
± 5% of reading or ± 2 ppm H2S
|
± 5% of readingor ± 5 ppm CO
|
Sampling Method
|
Internal sample pump, flow rate nominal 0.5 LPM, includes hydrophobic filter
| ||||
Display
|
Digital LCD with 7 segments, auto backlight during alarm
| ||||
Preset Alarms
(User Adjustable) |
1st alarm 10% LEL
2nd alarm 50% LEL Over alarm 100% LEL |
No alarms for
% Vol. CH4 |
Low alarm 19.5% High alarm 23.5% Over alarm 40.0%
|
1st 5 ppm
2nd 30 ppm TWA 10 ppm STEL 15 ppm Over 100 ppm |
1st 25 ppm
2nd 50 ppm TWA 25 ppm STEL 200 ppm Over 500 ppm |
Alarms Types
|
Gas alarms: 1st and 2nd, STEL, TWA (user adjustable) and OVER
Trouble alarms: Sensor connection, low battery, low flow, circuit trouble and calibration error | ||||
Alarm Methods
|
Gas alarms: Flashing lights, two tone buzzer, and vibration
Trouble alarms: Flashing lights, trouble displayed, intermittent buzzer, and vibration | ||||
Operating Temp. & Humidity
|
-20°C to +50°C (-4°F to 122°F)
0 to 95% RH, non-condensing | ||||
Response Time
|
Within 30 seconds (T90)
| ||||
Continuous Operation
|
Alkaline battery: 15 hours Li-Ion battery: 10 hours
70°F (21°C) | ||||
Power Source
|
Li-Ion battery pack, or 3 “AA” Alkaline battery pack; interchangeable
| ||||
Safety Rating
|
ATEX, TIIS, IECEx, and CE or optionally: CSA classified as intrinsically safe. Class I, Division 1, Groups A, B, C, D, and CE
Note: Either ATEX (USA and worldwide) or CSA (Canada) version must be specified when ordering. | ||||
Dimension & Weight
|
Approx. 143 (H) x 71 (W) x 43 (D) mm (5.6” H x 2.8” W x 1.6” D), approx. 350 g (12.3 ounces)
| ||||
Case Material
|
High dust & water resistant design. RFI shielded high impact plastic with protective rubber overmolding
| ||||
Controls
|
Five buttons: POWER / ENTER, DISPLAY, AIR, RESET, SHIFT
| ||||
Standard Accessories
|
• Belt clip • Rubber nozzle, 3.5” • Datalogging software
• 10” Probe • Manual • Quick reference card • 10’ Hose • Training CD | ||||
Optional Accessories
|
• SDM-2012 calibration stations • Calibration kit
• Li-Ion battery pack • AC or DC Charger • Sample draw hoses (10’ standard, • Carrying case up to 50’ max. available) | ||||
Configurations
|
1, 2, 3, 4, or 5 sensor units
Li-Ion or alkaline battery pack options | ||||
Warranty
|
Two years material and workmanship
| ||||
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