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Instruction Manual
D100348X012
Table 1. Specifications
(1)
Port Diameters
Supply Port: J 9.5 mm (0.375 inch) or J 12.7 mm
(0.5 inch)
Exhaust Port: J 2.4 mm (0.094 inch), J 9.5 mm
(0.375 inch) or J 12.7 mm (0.5 inch)
Input Signal
Positioner output
Maximum Input Signal Pressure
10.3 bar (150 psig)
Input to Output Pressure Ratio
Fixed at 1 to 1
Supply Pressure Ranges
When used in conjunction with a positioner or other
pneumatic accessory, always pipe the positioner and
booster with one common supply through a Fisher
67D, 67DR, or 95H regulator (see figure 2). A
high‐capacity filter, such as the Fisher 262K, should
be installed in the supply line to the regulator. Supply
pressure also must not exceed the maximum
pressure rating of the actuator. Constructions are
available in two maximum supply ranges.
When Normally Used With Diaphragm Actuators: Up
to 2.8 bar (40 psig)
When Normally Used With Piston Actuators: Up to
10.3 bar (150 psig)
(3)
Nominal Deadband
Percent of Positioner Output Span
2.4 mm (0.094 inch) exhaust port: 2%
9.5 mm (0.375 inch) exhaust port: 3.5%
12.7 mm (0.5 inch) exhaust port: 5%
1. May be used in any combination.
2. The pressure/temperature limits in this document, and any applicable code or standard limitation should not be exceeded.
3. This term defined in ISA Standard S51.1
4. Zero psig to maximum supply.
Educational Services
For information on available courses for 2625 and 2625NS volume boosters, as well as a variety of other products,
contact:
Emerson Process Management
Educational Services - Registration
Phone: +1-641-754-3771 or +1-800-338-8158
e‐mail: [email protected]
http://www.emersonprocess.com/education
(2)
(4)
:
2625 and 2625NS Volume Booster
Operative Temperature Limits
2625: -40 to 71_C (-40 to 160_F)
2625NS: -40 to 93_C (-40 to 200_F)
Maximum Flow Coefficients
See table 2
Connections
Input Signal: 1/4 NPT
Supply and Output Signal: 3/4 NPT
Hazardous Area Classification
Complies with the requirements of ATEX Group II
Category 2 Gas and Dust
Safety Instrumented System Classification
SIL3 capable - certified by exida Consulting LLC
Approximate Weight
2.3 kg (5 pounds)
Declaration of SEP
Fisher Controls International LLC declares this
product to be in compliance with Article 3 paragraph
3 of the Pressure Equipment Directive (PED) 97 / 23 /
EC. It was designed and manufactured in accordance
with Sound Engineering Practice (SEP) and cannot
bear the CE marking related to PED compliance.
However, the product may bear the CE marking to
indicate compliance with other applicable EC
Directives.
January 2015
(2,3)
3