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Gas : |
H2S |
CO |
O2 |
Combustibles |
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Measuring Range : |
0-100 ppm |
0-500 ppm |
0-25.0% |
0-100% LEL or |
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Auto zero |
Yes |
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Calibration |
Automatic |
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Backlight |
Low light (auto); alarm condition (auto); reactivation on demand |
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Full function self-test |
Sensor integrity, circuitry and battery; audible/visual alarms |
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Sensor |
Plug-in, electrochemical cell (toxic and oxygen); catalytic (LEL) |
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User field options |
Confidence beep, pass code protection, latching alarms, calibration due date, “SAFE” display function |
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ALARM INDICATORS |
Clearly advises alarm levels both visually and audibly |
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Visual alarms |
Two flashing alarm bars visable from all angles |
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LCD indicates gas present and alarm levels encountered |
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Audible alarm |
Typically 95 dB at 30 cm variable pulsed audible alarm |
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Vibrator alarm |
Pulses warning in gas alarm conditions, or for any status alarms |
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Other |
Low battery, over range, multiple gas and missing sensor |
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ALARM LEVELS |
Instantaneous Low Alarm for all gases; instantaneous High Alarm for all gases; |
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TWA (time weighted average) and STEL (short term exposure limit) for H2S and/or CO; OL (over limit alarm) for combustible gases |
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LCD |
Continuous, alphanumeric gas readout and status display advises: |
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Gases monitored |
H2S, CO, O2, combustibles (0-100% LEL or 0-5.0% methane) |
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Gas concentration |
Simultaneous and continuously displays gas concentration(s) present (in ppm, %LEL, or % v/v) |
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TWA ppm or % |
Records STEL and TWA exposures and displays on demand |
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Peak ppm or % |
Records and displays peak exposure to gas and displays on demand |
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Alarm setpoints |
Displayed on activation |
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TESTS: |
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Full function self-test |
Full function self-test on activation |
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Battery |
Continuous |
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GENERAL SPECIFICATIONS |
Rugged, composite material with integral concussion-proof boot |
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Operating temperature |
-4 to 122 oF / -20 to 50 oC |
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Humidity |
5% to 95% RH (non-condensing) |
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EMI/RFI |
Complies with EMC Directive 89/336/EEC |
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Ingress Protection |
IP65 |
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Battery run-time |
16-18 hours on two AA alkaline cells / 14-16 hours on two NiMH rechargeable cells |
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Size |
2.4 x 4 x 1.3 in. / 6 x 10 x 3.3 cm |
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Weight |
7.4 oz. / 211 g |
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WARRANTY |
Full 2 year warranty including all sensors |
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DATALOGGER OPTIONS |
User-downloadable datalogger |
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Data recorder |
All events and occurrences |
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Sampling rate |
Factory set at 5-second intervals and user-settable from 1 to 127-second intervals |
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Storage |
4.4 months of continuous data via 32 MB Flash MMC card (64 MB cards are also available); when full, the wraparound feature replaces oldest data with most recent data |

