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Tetra 3 MultiGas Detector Crowcon |
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Specifications |
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Size |
114 x 71 x 48 mm ( tapers to 20 mm ) ( 4.5 x 2.8 x 1.9 ins ) |
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Weight |
295 g ( 10.4 oz ) |
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Alarms |
95 dB multiple alarm sounds allow selection of distinctive tones for different alarm levels |
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Internal vibrating alarm |
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Display |
Graphic LCD with backlight, giving simultaneous display for all gas channels. Graphic symbols for battery (with proportional indication of remaining operation time), healthy operation or fault warning. Start up indication when calibration is due, overdue, or service required. |
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Normal display: Real time gas concentration levels |
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Display recall: Peak readings and TWA |
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Data logging |
Timed: 50 hours at 1-minute data rate ( >12,000 data logs of 4 channels ) |
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Threshold: Starts after adjustable pre-set level |
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Event: >5,000 events |
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Event logging |
Alarm, over range, calibration, bump, on/off, TWA, 1000 events |
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Battery |
Rechargeable Li-ion battery |
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Operating time |
based on four-gas instrument fitted with flammable sensor: A 5-hour charge from flat provides at least 12 hours of continuous use.A 12-hour charge provides at least 14 hours of continuous use |
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Sampling |
Diffusion or hand aspirator |
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Operating temperature |
-20°C to +55°C ( -4°F to +131°F C19 ) |
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Storage |
-25°C to +65°C ( B21:B23-13°F to +149°F ) |
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Humidity |
20 to 90% RH@ 40°C non-condensing |
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Ingress protection |
IP65 and IP67 |
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Approvals |
ATEX II 2 G Ex ia d IIC T4 Gb ( -20°C ≤ Ta ≤ +55°C ) |
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baseEFA05ATEX0187 |
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IECEx Ex ia d IIC T4 Gb ( -20°C ≤ Ta ≤ +55°C ) BAS05.0059 |
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CSA Class I Division 1 Groups A, B, C and D |
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Safety standards |
EN60079-0, EN60079-11, EN60079-1 |
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CSA22.2, 152 |
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EN50270, EN50271, EN50104, EN45544, EN60079, IEC61508 |
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PC Interface |
RS232 connection from interface module in charger |
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RS232/USB converter available |
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Calibration |
Can be routinely calibrated using Portables PC software or Crowcon Checkbox IMH |
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Charging |
Single way drop-in charger with UK, EU or US plug or in-line 110V/220V supply |
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Single way drop-in charger with options as above including PC interface |
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5 way multi-charger with universal power supply |
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Vehicle adapter for in-vehicle charging |
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Universal charger for vehicle, wall and desk mounting with a multi-region plug ( supplied with EU/UK/US/Australian inserts ) and status indication |
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