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IS_DP0100 / DP0250 Rev. A_11 2009
This document is subject to change without notice
2
Wiring
AutoZero
Auto zero element makes the DP transmitter maintenance free for periodical push button zeroing.
Element automatically adjusts the transmitters zero point from time to time, this eliminates the zero
point long term drift of the piezoresistive sensing element.
Zero point adjustment is carried out every 10 minutes. During zero point adjustment the output and display
values will freeze to the latest measured value. The automatic zero point adjustment takes 4 seconds.
WARNING: Risk of Electric Shock and Property Damage.
Disconnect each of multiple power supplies before making electrical connections.
More than one disconnect may be required to completely de-energize equipment.
Contact with components carrying hazardous voltage can cause electric shock and may result in
severe personal injury or death.
WARNING: Use this sensor only as an operating control.
Where failure or malfunction could lead to personal injury or damage to the controlled equipment
or other property, additional precautions must be designed into the control system. Incorporate
and maintain other devices such as supervisory or alarm systems or safety or limit controls that
are intended to warn of, or protect against, failure or malfunction of the sensor.
Ordering Codes
Item Codes
Description
Au
to Ze
ro
Di
sp
la
y
Selectable Range in Pa
-50...+50
-100...+100
0
...100
0
...250
0
...500
0
...1000
0
...1500
0
...2000
0
...2500
DP0100-AZ
Differential Pressure Sensor,
with 2 Ranges (+/-)
and Auto Zero feature
X
--
X X
-- -- -- -- -- --
--
DP0100-AZ-D
Differential Pressure Sensor,
with 2 Ranges (+/-)
and Auto Zero feature and Display
X
X
X X
-- -- -- -- -- --
--
DP0250-AZ
Differential Pressure Sensor,
with 2 Ranges
and Auto Zero feature
X
--
--
--
X X
-- -- -- --
--
DP0250-AZ-D
Differential Pressure Sensor,
with 2 Ranges
and Auto Zero feature and Display
X
X
--
--
X X
-- -- -- --
--