APG VBL Vibrating Switch user manual - Manual (Page 11)

Rev. A2, 9/09 VBL Series
11
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
• Installation
Unpacking
This unit has been thoroughly inspected and carefully packed at the factory
to prevent damage shipment. When unpacking, open shipping cartons of unit
and inspect the units for shipping damage. If there is evidence of damage, notify
the carrier immediately. Also verify the contents for properly ordered units.
Environment
The VBL should be installed in an area which meets the following conditions:
• The ambient temperature range is within the following:
Housing Probe
VBL-12/22/32 -20 to +60°C -20 to +150°C
VBL-12-T/VBL22-T -20 to +50°C -20 to +150°C
Note: Install a sun shield over the housing if exposed to direct sunlight. Do
not install in an area where the ambient temperature drops rapidly (for
example, 40°C to 0°C). This may cause dew and damage the sensor.
• Locate away from splashing water. The housing protection is IP65.
• No corrosive gases (such as NH
3
, SO
2
, C1
2
, etc.).
• Nonhazardous area.
• Ample space is provided for maintenance/inspection.
Location
• Locate the VBL at the position where the material level will actually make
contact with the probe. In case of high level control, pay attention to the
angle of repose. In case of low level control, prevent from being surrounded
by dead stock.
• The maximum length for the threaded boss/standoff pipe is 70 mm.
• The vibration rod should not be in contact with standoff pipe or tank wall.
• The VBL may be mounted in any position or orientation. However, it is
recommended that the cable entry be pointed downward where possible to
prevent intrusion from rain or splashing.
• In case of negative or positive pressure in the container, use suitable pipe
compound, gaskets or thread tape.