Important Information
GMS800 · Operating Instructions · 8013025 V1.2 · © SICK MAIHAK GmbH 9
Subject to change without notice
1.2 Main operating information
Start-up:
b
Ensure leak tightness of gas paths (e.g. filters, valves).
If leaks are suspected: Carry out a leak tightness check(
→
p. 54, §8.4).
b
Prevent condensation in the sample gas path of the gas analyzer.
b
Make an adjustment after each start-up (
→
p. 39, §6).
Additionally in potentially explosive atmospheres:
b
Make sure the enclosure is tightly closed.
b
When the GMS800 is fitted with enclosure purging or enclosure pressurization: Pre-
purge the enclosure when stipulated in the device specifications (
→
Supplementary
Operating Instructions for Enclosure or Operating Instructions for Enclosure Pressur-
ization System).
Operating state:
b
Pay attention to status and malfunction fields
(
→
Operating Instructions for Control
Unit).
b
Make adjustments at regular intervals (
→
p. 39, §6).
If an “Alarm” message is displayed:
b
Check the current measured values. Consider the situation.
b
Perform the measures planned at your site for the particular situation.
b
When necessary: Switch the alarm message off (“acknowledge” ).
In hazardous situations:
b
Switch-off the emergency switch or main switch of the host system.
Shutting down:
b
Before shutting down: Purge the sample gas path with a dry neutral gas to prevent
condensation in the measuring system.
1.3 General safety information
Sensitive electronics
Before signal connections are established (also with plug connections):
b
Disconnect the GMS800 and all connected devices from the mains (switch off).
Otherwise the internal electronics could be damaged.
Hazards during maintenance work
b
If it is necessary to open the device for setting or repair: Disconnect the device from all
power sources before starting work.
b
If the open device must be live during work: This work must be performed by skilled
persons who are familiar with potential hazards. If it is necessary to remove or open
internal components, live parts could be exposed.
⊗ Never interrupt protective conductor connections.
Hazards due to unsafe state
b
If severe damage is visible on or in the device: Shut device down and secure against
unauthorized start-up.
b
If liquids or particles have penetrated the enclosure: Shut device down immediately
and disconnect mains voltage at external source.
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