MSA S5000 User Manual

1 Safety Regulations
1.1 Correct Use
The S5000 Gas Monitor, hereafter also called device, is a gas monitor for measuring toxic and combustible gases as well as
oxygen. Using sensors, the device tests the ambient air and triggers the alarm as soon as the gas exceeds a specific
concentration level.
WARNING!
Do not use silicone-type lubricants in assembling the device and do not allow silicone vapors to be drawn into the flow system
while in operation. Silicone can desensitize the combustible gas sensor, thereby giving erroneously low readings.
Use only genuine MSA replacement parts when performing any maintenance procedures provided in this manual. Failure to do
so may seriously impair sensor and gas monitoring performance, alter flameproof/explosionproof characteristics or void
agency approvals.
Failure to follow these warnings can result in serious personal injury or death.
WARNING!
As with all gas monitors of this type, high levels of, or long exposure to, certain compounds in the tested atmosphere could
contaminate the sensors. In atmospheres where an S5000 Gas Monitor may be exposed to such materials, calibration must be
performed frequently for dependable operation and to confirm that display indications are accurate.
These effects include, but are not limited to:
• Passive MOS sensors may be adversely affected by prolonged exposure to certain substances. Loss of sensitivity or
corrosion may be gradual if such agents are present in low concentrations or it may be rapid at high concentrations.
Examples of these substances are as follows:
○ Halides: compounds containing fluorine, chlorine, bromine and iodine
○ Heavy metals, e.g. tetraethyl lead
○ Caustic and Acidic liquids and vapors
○ Glycol
• The H2S Digital Sensor may be adversely affected by the following substances:
○ Alcohols (methanol, ethanol, isopropanol)
○ Nitrogen dioxide (NO
2
)
○ Chlorine (Cl
2
)
○ Paint solvents (acetone, turpentine, toluene, mineral spirits, etc.)
• The CO Digital Sensor may be adversely affected by the following substances:
○ Alcohols (methanol, ethanol, isopropanol)
○ Paint solvents (acetone, turpentine, toluene, mineral spirits, etc.)
•
The O2 Digital Sensor may be adversely affected by the following substances:
○ Long term exposure to low levels of Acetylene
○ Paint solvents (acetone, turpentine, toluene, mineral spirits, etc.) in high concentrations larger than 1000 ppm or
prolonged exposure to lower concentrations
• Prolonged exposure of the H
2
S Digital Sensor to humidity levels of 5% RH or lower will result in gas measurement
readings of H
2
S that are greater than the actual gas concentration present.
5
1 Safety Regulations US

MSA S5000 Specifications

General

Brand	MSA
Model	S5000
Category	Monitor
Language	English