Black & Decker MULTI-GAS DETECTORS Manual do Utilizador descarregar pdf (Página 39)

GasAlertMax

Alarms

Gas Alarm Setpoints

The detector's gas alarm setpoints trigger the gas alarms

described in the table below.

Table 8. Gas Alarm Setpoints

Alarm Condition

Low alarm CO, H

S, and LEL: Ambient

gas level above low alarm

setpoint. (For O

Oxygen

Alarm Setpoints)

High alarm CO, H

S, and LEL: Ambient

gas level above high alarm

setpoint. (For O

, see Oxygen

Alarm Setpoints.)

TWA alarm

(CO and H

only)

Accumulated value above the

TWA alarm setpoint.

STEL alarm

(CO and H

only)

Accumulated value above the

STEL alarm setpoint.

Multi-gas alarm Two or more gas alarm

conditions.

Oxygen Alarm Setpoints

User selectable for low and high alarms in the 0-30.0%**

range. Set both below, both above, or one above and one

below 20.9% as desired.

Alarm setpoints > 20.9% (v/v) for increasing oxygen

concentrations.

Alarm setpoints < 20.9% (v/v) for decreasing oxygen

concentrations.

** Refer to Specifications

Resetting Gas Alarm Setpoints

Note

Standard factory alarm setpoints may vary by

region.

Table 9. Factory Set Alarm Setpoints

Gas Low High TWA STEL

CO 35 ppm 200 ppm 35 ppm 50 ppm

S 10 ppm 15 ppm 10 ppm 15 ppm

19.5% vol 22% vol N/A N/A

Combustible

Gases

10% LEL 20% LEL N/A N/A

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 71 72

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