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美国ASHCROFT B系列开关安装指导.pdf.pdf
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上传时间: 2019-10-19
详细说明：美国ASHCROFT B系列开关安装指导.pdfpdf,美国ASHCROFT B系列开关安装指导.pdfSETTING GUIDELINES BY ASHCROFT PRODUCT LINE
Product Line
Capability
B
Single setpoint only even on dual switch elements
Ex: B424B XFS 1000#
et: 750#+ Increase
Code 50 Switch Element-variable deadband element. A setpoint as well as a
reset point must be indicated. The deadband between the these two points
must not bc less or grcatcr than the deadband range listed in the
approximate deadband table
Ex: B450B XFS 100# Deadband table limits are 1. 1 to 3.5 psi
Set: 75# Increase
Reset: 72# Decrease
L G,P
LPS, LDS, LTS Single setpoint, fixed deadband
GPS, GDS, GTS
PPS, PDS, PtS
EX: LPSN4GB25 XFS 200#
Set: 130# on Decrease
LPD, LDD, LTD-Dual setpoints, fixed deadband on each Setpoints
GPD, GDD, GtD must be at least 5 of range apart
PPD, PDP PTD
EX: LPDN4GGB25 XFS 400#
Set: A side 120# on decrease
Set: B Side 350# on Increase
LPA, LDA, LTA- Single setpoint, adjustable deadband. A setpoint
GPA, GDA, gta and a reset point must be indicated. The deadband
PPA, PDA, pta between these points must not be less or greater than the
deadband range listed in the approximate deadband table
EX: LPANHV25 XFS 150IW
Set: 1451W Increase
Reset: 901W Decrease
L,G
LPS, LDS, LTS- Single setpoint, fixed deadband
(X2C Option) GPS, GDS, GTS DPDT Contacts. This option provides simultaneous
operation on either increasing or decreasing pressure for
Code g switch elements when ordered with XFS only
Field adjusted switches or other switch elements will
operate within 1% of range of each other.
A
A-Series switches are not field adjustable and must be set at the factory. A
setpoint must be indicated, however"XFS" is not shown in the part number
Ex: APSNSDL02 100#
Set: 70# on Increase
H
Single Setpoint only, even on dual switch elements
Ex: H424V XFS 1000#
Set: 750# Increase
NPA-Single setpoint, adjustable deadband. Deadband is adjustable
between 1%-95% of nominal range
Ex: NPAN4DLS01 XFS 30#
Set: 25# Increase
Reset: 7+ Decrease
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