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PRESSURE INDICATING CONTROLLER 4195

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Payment Method	Telegraphic Transfer (T/T)
Pack. & Delivery	Standard
Origin	United States

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Specification

The 4195K Series gauge pressure indicating
controllers (figure 1) show process pressure and set
point on an easy-to-read process scale. The
controllers, part of the versatile Wizard family of
pneumatic instrumentation, compare process
pressure with an operator-adjusted set point. The
4195K Series controllers then deliver a pneumatic
signal to a control element so that process pressure
changes toward the set point. Controller types are
available for proportional-only,
proportional-plus-reset,
proportional-plus-reset-plus-rat e, and differential gap
for on-off control. The 4195K Series controllers are
used in industries where accurate pressure control
and process monitoring are required.
Unless otherwise noted, all NACE references are to
NACE MR01752002.
Note
Available Configurations
See table 1
Process(1) Sensor Range (Input Signal(1))
Lower and Upper Range Limits: As shown in
tables 2 and 5.
Maximum Allowable Pressure: As shown in
tables 2 and 5.
Process Scale
Standard scale is matched to the range of the
sensing element, with exception of receiver
controllers. Optional scales available(2).
Process Connections
Standard: 1/4 NPT internal stainless steel (all
input ranges)
Optional: 1/2 NPT external adaptors (see table 3)
Output Signal(1)
Proportional, Proportional-Plus-Reset, or
Proportional-Plus-Reset-Plus-Rate Range:
 0.2 to 1.0 bar (3 to 15 psig) or  0.4 to 2.0 bar
(6 to 30 psig)
Differential Gap Range:  0 to 1.4 bar (0 to 20
psig) or  0 to 2.4 bar (0 to 35 psig)
Action: Field-reversible between  direct
(increasing sensed pressure increases output
pressure), and  reverse (increasing sensed
pressure decreases output pressure) action
Supply and Output Connections
1/4 NPT internal
Supply Pressure Requirements(6)
See table 4
Remote Set Point Pressures
 0.2 to 1.0 bar (3 to 15 psig) or  0.4 to 2.0 bar
(6 to 30 psig)
Construction Materials
See table 6
Controller Adjustments
Proportional Band(1): 5 to 500% of process
scale span
Reset(1): Adjustable from 0.01 to more than 74
minutes per repeat (from 100 to less than 0.0135
repeats per minute)
Rate(1): Adjustable from 0 to 20 minutes
Differential Gap(1) Controllers: Adjustable from
5 to 100% of process scale span
Set Point: Adjustable from 0 to 100% of the scale
span
Controller Performance
Repeatability(1): 0.4% of output span
Dead Band(1): Less than 0.4% of process scale
span
Typical Frequency Response(1): 1.5 hertz and
90 degree phase shift with 3.05 m (10 feet) of 6.4
mm (1/4-inch) tubing and 1639 cm3 (100 cubic
inch) volume
Steady-State Air Consumption(1,3,4)
0.2 to 1.0 Bar (3 to 15 Psig) Output: 0.10 normal
m3/hr (3.5 scfh)
0.4 to 2.1 Bar (6 to 30 Psig) Output: 0.14 normal
m3/hr (5.0 scfh)
Delivery Capacity(3)
0.2 to 1.0 Bar (3 to 15 Psig) Output: 5.9 normal
m3/hr (240 scfh)
0.4 to 2.1 Bar (6 to 30 Psig) Output: 10.4 normal
m3/hr (350 scfh)
Exhaust Capacity(3)
0.2 to 1.0 Bar (3 to 15 Psig) Output: 4.6 normal
m3/hr (186 scfh)
0.4 to 2.1 Bar (6 to 30 Psig) Output: 7.0 normal
m3/hr (295 scfh)
Operative Ambient Temperature Limits(5,6)
40 to 70C (40 to 160F)