Instrument Troubleshooting; Warnings And Errors - Endress+Hauser SS2100 Series Operating Instructions Manual

SS2100-series Sample Conditioning System
9

Instrument troubleshooting

This section presents recommendations and solutions to common problems, such as gas leaks, contamination,
excessive sampling gas temperatures and pressures, and electrical noise along with instruction for basic maintenance
tasks. If your analyzer demonstrates other issues, contact Service. Refer to Service →.
WARNING
Class 3B invisible laser radiation when open.
 Avoid exposure to the beam. Never open the sample cell unless directed to do so by a service representative and
the analyzer power is turned off.
NOTICE
The optical head has a seal and "WARNING" sticker to prevent inadvertent tampering with the device.
 Do not attempt to compromise the seal of the optical head assembly. Doing so will result in loss of device
sensitivity and inaccurate measurement data. Repairs can then only be performed by the factory and are not
covered under warranty.
Technicians are expected to follow all safety protocols established by the customer that are necessary for
servicing the analyzer.
 This may include, but is not limited to, lockout, tagout procedures, toxic gas monitoring protocols, personal PPE
requirements, hot work permits and other precautions that address safety concerns related to performing service
on process equipment located in hazardous areas.
9.1

Warnings and errors

9.1.1 Gas leaks
A common cause of erroneous measurements is outside air leaking into the sample supply line. It is recommended
the supply lines be periodically leak tested, especially if the analyzer has been relocated or has been replaced or
returned to the factory for service and the supply lines have been reconnected.
NOTICE
Plastic tubing is permeable to moisture and other substances which can contaminate the sample stream.
 Do not use plastic tubing of any kind for sample lines. Using ¼" O.D. x 0.035" wall thickness, seamless stainless
steel tubing is recommended.
WARNING
Process samples may contain hazardous material in potentially flammable and toxic concentrations.
 Personnel should have a thorough knowledge and understanding of the physical properties and safety
precautions for the sample contents before operating the SCS.
9.1.2 Contamination
Contamination and long exposure to high humidity are valid reasons for periodically cleaning the gas sampling lines.
Contamination in the gas sampling lines can potentially find its way to the sample cell and deposit on the optics or
interfere with the measurement in some other way. Although the analyzer is designed to withstand some
contamination, it is recommended to always keep the sampling lines as contamination free as possible. Refer to
Preventing contamination →.
9.1.3 Excessive sampling gas temperatures and pressure
The embedded software is designed to produce accurate measurements only within the allowable cell operating
range (see specifications in the Operating Instructions →). Pressures and temperatures outside this range will
trigger a Pressure Low Alarm, Pressure High Alarm, Temp Low Alarm, or Temp High Alarm fault. For
information on systems alarms, refer to the Description of Device Parameters →.
Endress+Hauser
Operating Instructions
51