ircon Modline 5, Operating Instructions Manual

Page: 121 / 156

Maintenance
Modline 5
Rev. L6 Feb 2017
119
7 Maintenance
7.1 Routine Maintenance
7.1.1 Maintenance Checklist
The Modline 5 Sensor is a precision temperature measuring instrument built for rugged service and
ease of operation.
When installed and maintained with reasonable care, it will give you reliable service in a wide variety
of applications. Routine Maintenance is essential for reliable, trouble-free operation. It consists of a
thorough inspection at regular intervals to keep the instrument working efficiently and to head off
problems before they occur.
Most “service problems” are caused by incorrect function setup, improper Sensor sighting and focusing,
dirty optics, and overheating of the sensor and other conditions that can be found and corrected by a
maintenance program.
The following checklist will help you develop a maintenance routine suitable for your installation:

Perform Sensor Check (CHK) as instructed under Engineering functions menu for Sensor setup
in Section 5
Operation , page 82.

Check Sensor function settings. A record of the correct settings for process being measured
should be made.

Check Sensor for proper alignment and focus. Make sure there are no obstructions in the optical
path between Sensor and target. Process viewing windows should be clean.

Check Sensor lens and clean if necessary. Refer to cleaning instructions below.

Make sure Sensor is not overheated. If water cooling and/or air purge accessories are used, make
sure there is adequate flow of cooling water and clean, dry air.

Check Sensor interconnecting cable for any signs of mechanical damage or overheating. Make
sure all connections are secure.
7.2 Sensor Optics Cleaning
Inspect the standard Sensor lens or the front window and mirror on the Sensor with the Dirty Window
Detector option on a routine schedule. Clean this optics of any dust or residue that may have
accumulated. If this requires removing the Sensor from its mounting, make sure you note the mounting
alignment and lens focus position so you will be able to restore the Sensor to its correct operating
position. Always verify focusing as instructed in Section 3
Sensor Installation , page 22.
If the Sensor includes the Laser aiming option, see the Laser option cautions on Section 2.3 Model
Configuration and Required Selections , page 16 and Section 5 Operation , page 82.
Protect the Sensor interconnecting cable plug pins from liquids and dirt if disconnected from the Sensor.
Clean the front surface of the lens, or window and mirror as often as necessary. The frequency of the
lens cleaning will depend on the environment at the point of installation. Air purging will reduce the
necessity of frequent cleaning in dusty, dirty areas.