Michell Instruments PC33, Руководство пользователя

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PC33 & 52 User’s Manual
Michell Instruments v
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 instruments are designed to be completely safe when used with options and accessories supplied
by the manufacturer for use with the instrument.
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 instruments must be maintained either by the manufacturer or an accredited service agent.
Refer to www.michell.com for details of Michell Instruments’ worldwide offices contact information.
Calibration
Michell Instruments recommends an annual calibration for an accuracy requirement of ±2% RH
under ambient conditions where temperature is 0 to +50°C (+32 to +122°F) and relative humidity is
0 to 70% RH. For environments with airborne chemicals or for high humidity and high temperature
conditions, Michell recommends more frequent 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 specification.
EMC Compatibility
The PC33 & 52 relative humidity probes are designed to meet the following European standards:
• EN 61326 (1997) + A1 (1998) + A2 (2001)
• EN 61000-3-2 (1995) +A1 (1998) + A2 (1998) & EN 61000-3-3 (1995)
• Emission: Class b, Immunity: Industrial