Description
Overview
GAOTek diffusion gas detector can effectively resist a three-meter drop, the protection level of the instrument reaches IP67, the instrument has passed the EMC anti-static interference test and can work normally in the walkie-talkie environment. The man down alarm function has upgraded the safety of underground operators. Password protection function prevents non-operators from modifying menu parameters. With safety reminder function, sound and light vibration alarm function, let operators work without worries. The high and low alarm latched function allows the operator to better capture the sudden change of the gas concentration value.
Technical Specifications
| Sampling Method | pump suction type |
| Gas Type | NH3 HCN ETO CH3Br O3 etc |
| Measure Range | optional |
| Resolution | optional |
| Response Time | ≤ 30 seconds |
| Precision | ≤ ± 2% FS except for special gases |
| Automatically Test And Calibrate After Power-On | Including reset, maximum value (MAX), minimum value (MIN), STEL, TWA value |
| Unit | PPM and mg/m³ can be switched and displayed by one key, and the concentration value is automatically converted by the system |
| Display | monochrome graphics (160 x 96), screen can be automatically flipped |
| Backlight | The backlight time can be manually set, and will be turned on automatically when an alarm is issued |
| Data Record | Can store 100.000 sets data, the storage interval is adjustable from 5 to 3600 seconds, data can be exported, with data cable |
| Alarm | 95 dB buzzer 11.81 in (30 cm), vibration alarm and flashing red LED and alarm status indication on the screen, alarm latched; diagnostic alarm and battery undervoltage alarm, pump block alarm; man, down alarm, with early warning and optional real-time remote Bluetooth notification function |
| Battery | 3.7 V rechargeable lithium battery, battery capacity 2200 mA |
| Working Hours | More than 15 hours in continuous pumping mode |
| Charger | Travel charger with DC interface, charging time ≥ 4 hours |
| Explosion-Proof Grade | IECEX or ATEX (II IG Ex ia IIC T4) CNEX: Ex ia IIC T4 Ga |
| Certification | 2004 or 108 or EC (EMC) |
| (EU Regulations) | 1995/5/EC(Radio) 94 or 9 or EC (ATEX) |
| Protection Grade | IP 67 |
| Humidity | 0% RH to 90% RH (no condensation) |
| Environmental Pressure | 86 Kpa to 106 Kpa |
| Working Temperature | -4 °F to 122 °F (-20 ℃ to 50 ℃) |
| Size | 6.18 in x 3.32 in x 2.34 in (157 mm x 84.5 mm x 59.5 mm)Â (including back clip or water trap filter) |
| Weight | 0.805 lb (0.36 kg) (including battery, belt clip and filter) |