General Safety Information; Intended Use; List Of Warnings And Cautions - 3M 740 Serie Instrucciones De Uso

GENERAL SAFETY INFORMATION

Intended Use

The M™ Multi-Gas Detector 70 Series is designed to continuously monitor the ambient environment and notify the user if oxygen, combustible gases, hydrogen sulfide,
or carbon monoxide levels reach the alarm set point for the detector.
List of Warnings and Cautions within these User Instructions
Using a certified gas for a sensor test or calibration with a concentration other than the one listed for this instrument and sensor will produce inaccurate readings. This
means that higher levels of the gas being monitored may be present and could result in overexposure and cause sickness or death. For proper use, see supervisor or
User Instructions, or call M in U.S.A., 1-800--60. In Canada, call Technical Service at 1-800-67-1.
This instrument helps monitor for the presence and concentration level of certain specified airborne gases. Misuse may produce an inaccurate reading which means
that higher levels of the gas being monitored may be present and could result in overexposure and cause sickness or death. For instruments with an oxygen sensor
installed, misuse may produce an inaccurate reading where lower or higher levels of oxygen may be present and cause sickness or death. For proper use, see
supervisor or User Instructions, or call M in U.S.A., 1-800--60. In Canada, call Technical Service at 1-800-67-1.
Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by untrained or unqualified
persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result in sickness or death.
Use only for monitoring the gas which the sensor and instrument are designed to monitor. Failure to do so may result in exposures to gases not detectable and cause
sickness or death. For proper use, see supervisor or User Instructions, or call M in U.S.A., 1-800--60. In Canada, call Technical Service at 1-800-67-1.
Each time the unit is turned on, it performs a self-test, which activates the audible, vibratory and visual alarms. If the self-test fails, or all the alarms do not activate, do
not use. Failure to do so may adversely affect product performance and result in sickness or death.
Immediately exit any environment that causes an alarm condition on the monitor. Failure to do so may result in sickness or death.
Do not cover or obstruct display, audible alarm opening or visual alarm cover. Doing so may adversely affect product performance and result in sickness or death.
Vibrator and LCD may not function effectively below – ºF (–0 ºC). Using the instrument below this temperature may adversely affect product performance and result
in sickness or death.
Do not open the 70 series detector in a potentially hazardous area. Failure to do so may result in sickness or death.
High off-scale combustible readings (indicated by 'OVR') indicate an explosive concentration and may result in sickness or death.
Leave the area immediately if the instrument displays any rapidly increasing readings followed by declining or erratic readings may indicate a gas concentration beyond
the upper scale limit (e.g. 100% LEL) which may be hazardous. Failure to do so may result in sickness or death.
The following steps must be performed when conducting a sensor test or calibration to ensure proper performance of the monitor. Failure to do so may adversely affect
product performance and result in sickness or death.
– Calibrate prior to initial use.
– When performing a sensor test or calibration only use certified calibration gas at the required concentration level. Do not calibrate with expired calibration gas.
– A sensor test should be performed before each use.
– If the instrument cannot be calibrated, do not use until the reason can be determined and corrected.
– Do not cover or obstruct display, audible alarm opening or visual alarm cover.
– Ensure sensor inlet is unobstructed and is free of debris.
– Ensure calibration hood is removed prior to use.
Battery must be replaced in a non-hazardous area only. Battery replacement is not an intrinsically safe operation. Use only approved battery. Failure to do so may result
in sickness or death.
Never alter or modify this instrument. Substitution of components may impair intrinsic safety. Repair or replace parts only with the M components approved for this unit.
Failure to do so may adversely affect product performance and result in sickness or death.
Only charge the instrument in non-hazardous areas using a M power supply. Do not use the 70 series detector in a potentially hazardous environment when it is
plugged in. Do not attempt to charge alkaline batteries. Failure to do so may adversely affect product performance and result in sickness or death.
Do not attempt to clean instrument by rubbing with a dry cloth. Cleaning with a dry cloth may generate a static charge and result in an explosion if located in a hazardous environment.
CAUTION
CSA standard C. No.15 states before each day's usage sensitivity must be tested on a known concentration of the currently selected gas equivalent to 5 - 50% LEL
of full scale concentration. Accuracy must be within 0% to +0% of the actual. Accuracy may be corrected by performing a calibration of the unit. Observe proper polarity
when inserting the battery. Polarity is marked on the inside of the battery compartment.
This instrument contains a lithium battery. Dispose of battery in accordance with local regulations.
Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently scratch the surfaces and damage the display window,
labels, or instrument housing.
When re-assembling the unit, inspect the rubber gasket for damage and ensure it is seated properly between the front and back cover. Do not use the unit if any damage is observed.
WARNING