Black & Decker MULTI-GAS DETECTORS Manuel d'utilisateur télécharger pdf (Page 14)

BW Defender2

Safety Information - Read First

aWarning

To avoid possible personal injury:

⇒ Substitution of components may impair Intrinsic Safety.

⇒ Do not use the detector if it is damaged. Before you use the detector, inspect the case. Look for cracks or

missing plastic.

⇒ If the detector is damaged or something is missing, contact BW Technologies immediately (see p. 2).

⇒ Make sure the battery is locked in place before you operate the detector.

⇒ Use only a sensor specifically designed for your detector. (See the section, "Replacement Parts and

Accessories.")

⇒ Periodically test the sensor’s response to gas by exposing the detector to a targeted gas concentration that

exceeds the High Alarm setpoint. Manually verify that the audible and visual alarms are activated.

⇒ Prior to each day’s usage sensitivity must be tested on a known concentration of the target combustible gas

(methane, etc.) equivalent to 25-50% of full-scale concentration (accuracy must be within 0 to +20% of actual).

Accuracy may be corrected by recalibrating the instrument.

⇒ Calibrate the detector before first-time use, and then at least once every 90 days.

⇒ Do not turn off the detector during a work shift. Turning off the detector resets the LTEL (Long Term

Exposure Limit), STEL (Short Term Exposure Limit) and maximum gas exposure values to 0. (See the section,

“Alarms.”)

⇒ It is recommended that the accuracy of the detector be checked with known concentration calibration gas

before each day’s use and immediately after any known exposure to contaminants.

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Black & Decker MULTI-GAS DETECTORS Manuel d'utilisateur Page 14