Model |
GW-3 (HS) Hydrogen Sulfide |
GW-3 (CO) Carbon Monoxide |
GW-3 (C-) H2 Compensated CO |
GW-3 (CX) (Dual Sensor) |
GX-3 (O2) Oxygen |
Carbon Monoxide |
Oxygen |
Detection Principle |
EC |
Dual EC |
Galvanic Cell |
Detection Range (Increments) |
0 ~ 30 ppm (0.1) 30 ~ 100 ppm (1) |
0 ~ 300 ppm (1) |
0 ~ 25.0% Vol. (0.1) |
Service Range |
100 ~ 200 ppm (1) |
310 ~ 2,000 ppm (10) |
25 ~ 40.0% Vol. (0.1) |
Alarm Setpoints |
1st: 5.0 ppm 2nd: 30.0 ppm 3rd: 100.0 ppm TWA: 1.0 ppm STEL: 5.0 ppm OVER: 200.0 ppm |
1st: 25 ppm 2nd: 50 ppm 3rd: 1200 ppm TWA: 25 ppm STEL: 200 ppm OVER: 2,000 ppm |
L: 19.5% Vol. LL: 18.0% Vol. H: 23.5% Vol. OVER: 40.0% Vol. |
Operating Temperature |
-20 °C to +50 °C (no sudden changes) (Approx. 15-minute temporary use environment: -20 °C to +60 °C) [no sudden changes] |
-20 °C to +50 °C (no sudden changes) |
Humidity Range |
10 to 90 %RH (no condensation) (Approx. 15-minute temporary use environment: 0 to 95 %RH) [no condensation] |
10 to 90 %RH (no condensation) |
Continuous Operating Time |
Approx. 4,000 hours |
Approx. 2,500 hours |
Approx. 2,000 hours |
Approx. 4,000 hours |
Sampling Method |
Diffusion Type |
Types of Alarm |
Gas alarms: Three-step alarms, STEL alarm, TWA alarm, OVER alarm
Fault alarms: Sensor connection / disconnection, low battery level, calibration failure, clock abnormality, system abnormality
|
Alarm Indications |
Auto-reset or self latching
Lamp flashing, intermittent buzzer sounding, gas concentration readout blinking, vibration
|
Power Source |
CR2450 coin-type lithium ion battery |
Case Material |
Intrisically safe explosion-proof construction (Ex ia IIC T4 Ga) , IP 66/68 (6.6ft, 1h) (2m, 1h) |
Approvals |
ATEX, IECEx, CSA |
Dimension & Weight |
2.5″ W x 1.6″ H x .86″ D (Approx 63 mm W x 42mm H x 22mm D) , 1.6 ounces (approx. 45g) |
Functions |
Data logger, vibration, STEL alarm, TWA alarm, quick calibration, peak value display, temperature display |
Standard Accessories |
CR2450 coin-type lithium-ion battery, Spring pins (used to mount accessories on to the rear face), Watch band, Alligator clip |
Optional Accessories |
Heat-resistant case, Dust filter, CF-1821 filter (for CO sensor), CF-A13i-1 humidity control filter (for H2S sensor), Calibration adapter |