Functional Tests And Adjustments; Introduction - Emerson MRLDS-250 Installation And Operation Manual

6 Functional
Tests and
Adjustments
6.1.

Introduction

To comply with the requirements of EN378 and the
European F-GAS regulation, gas detectors must be
tested annually. However, local regulations may
specify the nature and frequency of this test.
CAUTION: Check local
regulations on calibration or
testing requirements.
CAUTION: The MRLDS-250
contains sensitive electronic
components that can be easily
damaged. Do not touch or disturb
any of these components.
WARNING: Annual checks and
adjustment using calibration gas is
recommended. Calibration gas
adjustment frequency may be
extended based on application, but
should never exceed a time period of two
years.
WARNING: In applications where
life safety is critical, calibration gas
adjustment should be completed
quarterly (every three months) or
on a more frequent basis. Emerson
is not responsible for setting safety practices
and policies. Safe work procedures including
calibration policies are best determined by
company policy, industry standards, and local
codes.
20 • MRLDS-250 Infrared Gas Detector I&O Manual
WARNING: Failure to test or
adjust the unit in accordance with
applicable instructions and with
industry guidelines may result in
serious injury or death. The
manufacturer is not liable for any loss, injury,
or damage arising from improper testing,
incorrect adjustment, or inappropriate use of
the unit.
WARNING: Before testing the gas
detectors on-site, the MRLDS-250
must be powered up and allowed to
stabilize.
WARNING: After initial
installation, the MRLDS-250
should be gas tested to ensure
proper operation.
WARNING: The testing and/or
adjustment of the unit must be
carried out by a suitably qualified
technician, and must be completed:
• In accordance with this manual.
• In compliance with locally applicable
guidelines and regulations.
Suitably qualified operators of the unit
should be aware of the regulations and
standards set down by the industry/country for
the testing or calibration of this unit. This
manual is only intended as a guide and,
insofar as permitted by law, Emerson accepts
no responsibility for the calibration, testing, or
operation of this unit.
The frequency and nature of testing or
calibration may be determined by local
regulation or standards.
EN378 and the F-GAS Regulation
require an annual check in accordance with
the manufacturer's recommendation.
026-1315 Rev 4