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Pura Online Hygrometer User's Manual
Safety
The manufacturer has designed this equipment to be safe when operated using the procedures detailed in this
manual. The user must not use this equipment for any other purpose than that stated. Do not apply values
greater than the maximum value stated.
This manual contains operating and safety instructions, which must be followed to ensure the safe operation
and to maintain the equipment in a safe condition. The safety instructions are either warnings or cautions
issued to protect the user and the equipment from injury or damage. Use competent personnel using good
engineering practice for all procedures in this Manual.
Electrical Safety
The instrument is designed to be completely safe when used with options and accessories supplied by the
manufacturer for use with the instrument.
Pressure Safety
DO NOT permit pressures greater than the safe working pressure to be applied to the instrument. The
specifi ed safe working pressure is 24 MPa (240 barg / 3480 psig).
Toxic Materials
The use of hazardous materials in the construction of this instrument has been minimized. During normal
operation it is not possible for the user to come into contact with any hazardous substance which might be
employed in the construction of the instrument. Care should, however, be exercised during maintenance and
the disposal of certain parts.
Repair and Maintenance
The instrument must be maintained either by the manufacturer or an accredited service agent. Refer to
Appendix B for details of Michell Instruments' worldwide offi ces' contact information.
Calibration
The recommended calibration interval for this instrument is 12 months unless it is to be used in a mission-
critical application or in a dirty or contaminated environment in which case the calibration interval should be
reduced accordingly. The instrument should be returned to the manufacturer, Michell Instruments Ltd., or one
of their accredited service agents for re-calibration.
Safety Conformity
This product meets the essential protection requirements of the relevant EU directives. Further details of
applied standards may be found in the product specifi cation.
97303 Issue 1.2, March 2016
vi
Michell Instruments
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