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| Two to Four Gas Portable Monitor |
GX-94 Model |
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Features
- P004-0006
- RFI shielded high impact plastic
- Microprocessor controlled
- Simultaneous monitoring from two to four gases
- Push button calibration
- Internal data logger standard
- STEL, TWA, and Ceiling display readouts
- Peak and Average readouts
- Easy-to-read back-lit LCD display
- Audible and visible alarms
- Lunch-break mode
- Intrinsically safe, U.L. Classified
- Sewage Treatment Plants
- Utility Manholes
- Tunnels
- Hazardous Waste Sites
- Refineries Mines
- Chemical Plants
- Paper Mills
- Drilling Rigs
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The GX-94 is a powerful and economical solution for confined space gas monitoring requirements. For one low price you receive features such as single-button autocalibration of all gases, datalogging with a lunch break mode, continuous operation for 12 straight hours on only 2 size C alkaline batteries with a dual low battery alarm (warning and fully dead), simultaneous readout of all 4 gases on an auto back-lit LCD display, a high impact RFI shielded housing, user adjustable audible and visual alarm settings, additional STEL / TWA / Ceiling alarms and readouts, as well as peak or average readouts. The GX-94 is a lot of gas monitor for its price.
This compact and rugged portable instrument will monitor for % LEL levels of combustibles, oxygen deficiency, and ppm levels of hydrogen sulfide and carbon monoxide. The GX-94 is also ergonomically designed with a wide, steel-belt clip that positions the instruments display and visual alarms facing up at the user. There are several sampling options including the GX-94 in its standard diffusion configuration, or utilize its attachable battery driven or hand aspirated pump for a quicker response. A sturdy, waterproof carrying case is also available which custom fits the GX-94 and all of its accessories in a protective, foam padding. UL Classified as intrinsically safe. |

| Gas Detected |
All combustible
gases
(Methane as
standard)
|
Oxygen
(O2 )
|
Hydrogen Sulfide
(H2S)
|
Carbon Monoxide
(CO)
|
Detection
Principle |
Catalytic combustion |
Galvanic cell |
electrochemical cell |
Detection
Range |
0~99% LEL |
0~40.0 vol% |
0~99.5 ppm |
0~500 ppm |
Sampling
Method |
Diffusion sampling |
| Display |
2 digits
(1% LEL / digit) |
3 digits
(0.1 vol % digit) |
3 digits
(0.5 ppm digit) |
3 digits
(1 ppm / digit) |
| LCD with auto backlighting |
Indication
Accuracy |
±2% LEL from
0~20% range,
±5% LEL for
20 to 100% range |
±0.5% Oxygen |
+/- 1.5 ppm from 0~30 ppm range,
+/- 5 ppm from 30~99.5 ppm range |
+/- 5 ppm from 0-150 ppm
+/- 5 ppm from150 500 ppm |
Alarms
(User Adjustable)
|
1st alarm 10% LEL
2nd alarm 50% LEL
Max alarm 100% LEL
|
Low alarm 19.5%
High alarm 23.5%
Max alarm 40.0%
|
1st alarm 10 ppm
Ceiling alarm OFF
TWA alarm 10 ppm
STEL alarm 15 ppm
Max alarm 100 ppm
|
1st alarm 25 ppm
Ceiling alarm OFF
TWA alarm 25 ppm
STEL alarm 400 ppm
Max alarm 500 ppm
|
| Alarm Method |
Buzzer (80dB) and individual LED lamp (self-reset) |
Special
Functions |
Dosimeter: Indicates Time Weighted Average (TWA),
Short Term Exposure Limit (STEL)
Peak hold: Indicates highest readings since start up, lowest reading for oxygen
Delayed turn off: Approx. 5 seconds, prevents inadvertent turn off
Integral data logger: Selectable data log intervals (5 sec to 5 min), up to 45 hours total log time, Demand zero: Zero only on demand
|
Operating Temp.
& Humidity |
-20°C~+50°C (-4 to 122°F), 0 to 95% RH, non-condensing |
Data Logger
Output |
RS-232 to PC |
Continuous
Operating Hours |
Approx. 12 hours using alkaline batteries. 8 hours using Ni-Cad batteries |
| Power Source |
C size alkaline battery (2 pcs) or Ni-Cad battery (optional, externally charged) |
| Safety Design |
Intrinsically safe, U.L. Classified, Class I, Division 1, Groups A, B, C and D |
Dimensions
& Weight |
90 x 64 x 160mm (3.54 x 2.52 x 6.3), approx. 700g (25 ounces) |
| Case Material |
Weather resistant. RFI Shielded high Impact plastic |
| Controls |
Touch operated: DISPLAY, AIR, ON/OFF, SHIFT |
| Warranty |
One year material and workmanship |
Standard
Accessories |
(a) Shoulder strap (b) Instruction manual |
Optional
Accessories |
(1) Sample draw pump
(2) Sample draw adapter plate
(3) Data connector, CPU adapter type RC-1
(4) Remote repeater alarm |
(5) Padded carrying case (6) Ni-Cad batteries and charger
(7) Calibration kit
|

Ordering Information
GX-94 measuring LEL / O2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72-0219RK
GX-94 measuring LEL / O2 / H2S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72-0220RK
GX-94 measuring LEL / O2 / CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72-0221RK
GX-94 measuring LEL / O2 / H2S / CO . . . . . . . . . . . . . . . . . . . . . . . . . . .72-0222RK
Confined Space Kits
LEL / O2 / H2S w/battery operated pump and case . . . . . . . . . . . . . . . .72-0220RK-20
LEL / O2 / CO w/battery operated pump and case . . . . . . . . . . . . . . . . .72-0221RK-20
LEL / O2 / H2S / CO w/battery operated pump and case . . . . . . . . . . . .72-0222RK-20
Note:
STEL = Short Term Exposure Limit
TWA = Time Weighted Average
LEL = Lower Explosive Limit
PPM = Parts Per Million
Please specify gas combination when ordering
Specifications subject to change without notice |