Sierra Monitor Corporation PF2A7H - Manual (Page 3)

3 2
SAFETY
IMPORTANT MESSAGES
WARNING
NOTE
Indicates a potentially hazardous situation
which could result in death or serious
injury if you do not follow instructions.
Gives you helpful information.
Read this manual and follow its instructions. Signal words such
as WARNING and NOTE will be followed by important safety
information that must be carefully reviewed.
Do not disassemble, remodel ( including change of printed
circuit board ) or repair.
An injury or failure can result.
Do not operate beyond specification range.
Fire, malfunction or switch damage can result.
Do not use with a combustible fluid.
Otherwise, a fire or an explosion or damage may potentially result.
This flow switch is for air only.
Do not operate in a combustible gas or explosive gas
atmosphere.
Fire or an explosion can result.
This flow switch is not an explosion proof type.
WARNING
The Digital Flow Switch and this manual contain essential information
for the protection of users and others from possible injury and
property damage and to ensure correct handling.
Please check that you fully understand the definition of the following
messages (signs) before going on to read the text, and always follow
the instructions. NOTE
Follow the instructions given below when handling your flow
switch. Otherwise, the switch may be damaged or may fail, thereby
resulting in malfunction.
Do not drop it, bring it into collision with other objects or apply
excessive shock ( 490m/s 2 or more).
Do not pull the lead wire with force nor lift the main unit by holding
the lead wire. ( Pulling strength less than 49N)
Wiring correctly.
Do not wiring while power is on.
Do not wire with the same circuit of power line or high-voltage line.
Do not use in a place in which water, oil, or a chemical is
splashes.
Install a filter and/or mist seprator on the primary side ( inlet
side) if foreign matter is feared to mix in a fluid.
Flush the dust in the piping with air blow before piping the switch.
Do not push the setting buttons by a sharply pointed object.
Apply the power.supply when the flow rate is zero.
Start measurement by the flow switch three seconds after turning
on the power.
Maintain the switch status for measurement output before setting
when initializing or setting a flow rate of the flow switch.
Measure after checking impacts to the equipment.
Opening and closing of flow passage by restrictor should be
within max. measured flow rate value.