BW Technologies MicroClip XT Especificaciones descargar pdf (Pagina 35)

GasAlertMicroClip XT

Technical Reference Guide

Bump Interval

Define how often a bump check should be performed for each sensor in

the Bump Interval field. A different bump interval can be defined for

each sensor.

1. Enter the value (1-365 days) for each sensor.

2. Enter 0 to disable the Bump Interval option. Entering 0

automatically disables the Force Bump When Overdue

option.

The detector is shipped with the factory default set to 1 day.

Note

BW recommends to bump test the sensors before each day’s

use to confirm their ability to respond to gas by exposing the

detector to a gas concentration that exceeds the alarm setpoints.

Verify that the audible and visual alarms activate. Calibrate if the

readings are not within the specified limits.

Low Alarm

Enter the low alarm setpoints for each sensor. Refer to Factory Gas

Alarm Setpoints for factory defined alarm setpoints.

Applicable to all sensors.

High Alarm

Enter the high alarm setpoints for each sensor. Refer to Factory Gas

Alarm Setpoints for factory defined alarm setpoints.

Applicable to all sensors.

TWA Alarm

The time-weighted average (TWA) is a safety measure used to deter-

mine accumulated average exposure to gases. An average is deter-

mined using the US Occupational Safety and Health Administration

(OSHA) method to ensure the worker is warned when the maximum

average is accumulated.

The US OSHA method is defined as a moving average that accumu-

lates over an 8-hour average. If the worker is in the field longer, the old-

est accumulated values (first hour) are replaced by the newest values

(ninth hour). This continues for the duration of the work shift until the

detector is deactivated.

TWA Alarm applies to CO and H

S sensors only.

1. Refer to Factory Gas Alarm Setpoints

for the factory

alarm setpoints.

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BW Technologies MicroClip XT Especificaciones Pagina 35