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8011952/YWL2/3-0/2016-08| SICKOPERATING INSTRUCTIONS | DUSTHUNTER C200
Subject to change without notice
5 MAINTENANCE
5 Maintenance
5.1 General
The maintenance work to be carried out consists of:
● Cleaning work (see “Maintenance on the sender/receiver unit and reflector/scattered
light receiver”, page 94),
● Securing the purge air supply function (see “Cleaning the optical interfaces on the
reflector”, page 98),
● Checking/correcting the alignment of the optical axes of sender/receiver unit and
reflector (see “Focussing the sender light beam for transmission measurement”,
page 60).
Take the following steps to set the measuring system to “Maintenance” mode before
starting maintenance work.
▸ Connect the MCU to the laptop/PC using the USB line and start program SOPAS ET.
▸ Connect with the MCU (see “Connection to the device via USB line”, page 55).
▸ Enter the Level 1 password (see “Password and operating levels”, page 84).
▸ Set the sender/receiver unit to “Maintenance”: Click “Maintenance sensor”)
Fig. 59: SOPAS ET menu: MCU/Maintenance/Maintenance
Resuming measuring operation
Resume measuring operation after completing the work (deactivate the “Maintenance on/
off” checkbox in the “Maintenance / Operation” window and click “Set State”).
WARNING:
Observe the relevant safety regulations as well as the safety notices (see “Responsibility
of user”, page 9) during all work.
● “Maintenance” mode can also be set using the buttons on the display on the MCU
(see “Menu structure”, page 85) when the LC-Display option is present or by con-
necting an external maintenance switch to the terminals for Dig In2 (17, 18) in the
MCU (see “Connecting the MCU control unit”, page 47).
● An automatic function check is not carried out during “Maintenance”.
● The control window on the rear of the reflector/scattered light receiver (see “Sender
spot on the back of the enclosure of the reflector/scattered light receiver”, page 62)
is lit for better inspection of the optical alignment in the “Maintenance” mode.
● The value set for “Maintenance” is output on the analog output (see “Setting the
analog outputs parameters”, page 71). This is also applicable when a malfunction is
present (signaled on relay output).
● The “Maintenance” mode is reset when there is a voltage failure. In this case, the
measuring system switches automatically to “Measurement” after the operating volt-
age is switched on again.
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