Fisher 4195K User Manual

Product Bulletin

4195K Pressure Controllers

D200050X012

November 2019

Fisher™ 4195K Gauge Pressure Indicating Controllers

34.5:4195K

Fisher 4195K gauge pressure indicating controllers show process pressure and set point on an easy‐to‐read process scale. The controllers compare process pressure with an operator‐adjusted set point and delivers 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‐rate, and differential gap for on‐off control. 4195K controllers are used in industries where accurate pressure control and process monitoring are required.

Unless otherwise noted, all NACE references are to NACE MR0175-2002.

W5660‐1

W5663‐1

YOKE‐MOUNTED CONTROLLER

Notes: 1 An internal cover protects the proportional band adjustment mechanism. In this photograph, the cover has been removed. 2 Controller components are indicated in figure 1.

www.Fisher.com

INTERIOR OF A FISHER 4195KBME CONTROLLER

Product Bulletin

34.5:4195K November 2019

Specifications

4195K Pressure Controllers

D200050X012

Available Configurations

See table 1

Process Sensor Range (Input Signal)

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

(1)

Process Connections

Standard: 1/4 NPT internal stainless steel (all input ranges) Optional: 1/2 NPT adaptors (see table 3)

Output Signal

Proportional, Proportional‐Plus‐Reset, or Proportional‐Plus‐Reset‐Plus‐Rate Range:

1.0 bar (3 to 15 psig) or Differential Gap Range:

 0 to 2.4 bar (0 to 35 psig)

Action: Field‐reversible between

 0.4 to 2.0 bar (6 to 30 psig)  0 to 1.4 bar (0 to 20 psig) or

 direct (increasing

 0.2 to

sensed pressure increases output pressure), and

 reverse (increasing sensed pressure decreases

output pressure) action

Supply and Output Connections

1/4 NPT internal

Supply Pressure Medium

Air or non-corrosive Natural Gas

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: 5 to 500% of process scale span Reset: Adjustable from 0.01 to more than 74 minutes

per repeat (from 100 to less than 0.0135 repeats per minute)

Rate: Adjustable from 0 to 20 minutes Differential Gap Controllers: Adjustable from 5 to

100% of process scale span Set Point: Adjustable from 0 to 100% of the scale span

Controller Performance

Repeatability: 0.4% of output span Dead Band: Less than 0.4% of process scale span Typical Frequency Response: 1.5 hertz and 90 degree

phase shift with 3.05 m (10 feet) of 6.4 mm (1/4‐inch) tubing and 1639 cm

Steady‐State Air Consumption

0.2 to 1.0 Bar (3 to 15 Psig) Output:

0.08 m

0.4 to 2.0 Bar (6 to 30 Psig) Output:

0.07 m

/hr (2.8 scfh)

/hr (2.5 scfh)

(100 cubic inch) volume

(3)(4)

Supply Pressure Requirements

(2)

See table 4

Table of Contents

Features 4.....................................

Construction Features 4.........................

Principle of Operation 8.........................

Proportional-Only Controllers 8..................

Proportional-Plus-Reset and

Proportional-Plus-Reset-Plus Rate Controllers 8..

Differential Gap Controllers 10..................

Remote Set Point Option 10....................

(continued)

Operative Ambient Temperature Limits

(2)(5)

-40 to 71C (−40 to 160F)

Auto/Manual Station Option 10..................

Anti-Reset Windup Option 11...................

External Feedback Option 11....................

Installation 12.................................

Ordering Information 12.........................

Application 12................................

Construction 12...............................

4195K Pressure Controllers

D200050X012

Specifications (continued)

Product Bulletin

34.5:4195K

November 2019

Hazardous Area Classification

Complies with the requirements of ATEX Group II Category 2 Gas and Dust

Housing

Designed to NEMA 3 (Weatherproof) and IEC 529 IP54 Specifications

Ex h IIC Tx Gb Ex h IIIC Tx Db

Maximum surface temperature (Tx) depends on

Mounting

operating conditions

Gas: T6 Dust: T71

Controller can be mounted on

 wall, or  pipestand

Meets Customs Union technical regulation TP TC 012/2011 for Groups II/III Category 2 equipment

II Gb c T*X III Db c T*X

NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology.

1. Consult your Emerson sales office

2. The pressure/temperature limits in this document and any applicable code or standard should not be exceeded.

3. Normal m

4. Without auto/manual station. With auto/manual station add 0.01 m

5. Also use these temperatures for transportation and storage limits.

/hr‐‐normal cubic meters per hour (m3/hr, 0C and 1.01325 bar, absolute). Scfh‐‐standard cubic feet per hour (ft3/hr, at 60F and 14.7 psig).

for additional information.

/hr (0.5 scfh).

Approximate Weight

4.5 kg (10 pounds)

Table 1. Available Configurations

MODES OPTIONS

TYPE

NUMBER

4195KA

4195KAE

4195KAM

4195KAME

4195KB 4195KBE 4195KBF

4195KBFE

4195KBM 4195KBME 4195KBFM

4195KBFME

4195KC 4195KCE 4195KCF

4195KCFE

4195KCM 4195KCME 4195KCFM

4195KCFME

4195KS

4195KSE

4195KSM 4195KSME

1. Reverse‐acting constructions are designated by the suffix letter R in the type number.

(1)

Proportional‐

Only

X X X X

- - -

Proportional‐

Plus‐Reset

- - -

- - X

X X X X X X X

- - -

Proportional‐

Plus‐Reset‐

Plus‐Rate

- - -

X X X X X X X X

- - -

Differential

Gap

- - -

X X X X

Anti‐Reset

Windup

(suffix letter F)

- - -

- - X X

- - -

- - X X

- - -

- - X X

- - -

- - X X

- - -

 actuator,  panel,

Remote

Set Point

(suffix letter M)

- - -

- - X X

- - -

- - X X X X

- - -

- - X X X X

- - -

- - X X

Internal Auto/

Manual Station

(suffix letter E)

- - X

Product Bulletin

34.5:4195K November 2019

4195K Pressure Controllers

D200050X012

Features

n Easy Maintenance—Simple design allows fast, easy

maintenance and minimal spare parts inventory.

n Easy Adjustment—Adjusting the set point, the zero

and span of the process pointer, and switching between direct and reverse action are accomplished quickly and without special tools. Additionally, the set point and proportional band can be adjusted with no interaction between the two adjustments.

n Application Versatility—Either a Bourdon tube or

capsular input element is available to control a wide range of positive pressures, vacuum pressures, or compound pressures.

n Mounting Versatility—A 4195K controller can be

mounted directly on the actuator or it can mount on a pipestand, wall, or in a panel.

n Vibration Resistance—The simple design and low

mass of internal parts allow a 4195K controller to withstand the vibration levels encountered in most plant environments.

Construction Features

Simplified Relay Maintenance

A clean‐out wire provides a fast, easy means of cleaning the relay primary orifice during service.

Pressure Protection for the Case

A rubber plug in the plastic case pops out to relieve excessive pressure buildup inside the case.

Easy Direct/Reverse Switching

Controller action can be switched from direct to reverse or vice versa by simply loosening the screws on the proportional band cover and moving the cover out to rotate the proportional band knob to the desired action (see figure 1).

Easy Mode Conversion

Conversion from proportional to proportional‐plus‐reset control requires the addition of a reset valve and two pieces of tubing. Conversion from proportional to proportional‐plus‐reset‐plus‐rate control requires the addition of a reset/rate valve and three pieces of tubing. Conversion from proportional to differential gap for on/off control requires the addition of one piece of tubing.

n High‐Visibility Display—Two red pointers on a

114 mm (4 1/2‐inch) long, white‐on‐black scale show process pressure and deviation from set point at a glance. Two other gauges monitor supply pressure and output pressure.

n Low Air/Gas Consumption—The relay and nozzle

design reduces the steady-state consumption rate to as low as 0.07 m 6 scfh requirement set for the oil and gas industry by the US Environmental Protection Agency (New Source Performance Standards Subpart OOOO, EPA‐HQ‐QAR‐2010-0505).

n Corrosion Resistance—Tough, plastic housing resists

such corrosive environments as chemical plants and the salt spray atmosphere on an offshore oil platform. Internal constructions are available to resist a corrosive supply pressure media.

/hr (2.5 scfh); less than the

Anti‐Reset Windup

Anti‐reset windup is available with proportional‐plus‐reset controllers. A relief valve may be installed to limit reset windup in either direction.

Remote Set Point

The capability to adjust the set point from a remote location is available as an option on 4195K controllers.

Auto/Manual Capability

An optional internal auto/manual station permits smooth, bumpless transfer between automatic control and manual operation without disturbing the controller output. A positive‐acting, two‐position switch, showing either automatic or manual control mode, is clearly visible with the controller cover closed.

Product Bulletin

(1)

4195K Pressure Controllers

D200050X012

Table 2. Process Sensor (Capsular Element) Pressure Ratings

CAPSULE

MATERIAL

Metric

units

N09902

Nickel Alloy

U.S. units

1. Minimum or maximum span or any span in between may be positioned anywhere within the operating range. For example, if a 0 to 350 mbar (0 to 5 psig) sensing element is used and the minimum span of 175 mbar (2.5 psig) is set, the process indication can be calibrated to a range of 340 mbar to 203 mbar (10 inch Hg to 6 inch Hg), 0 to 172 mbar (0 to 2.5 psig), 172 to 345 mbar (2.5 to 5 psig), 305 to 480 mbar (4.5 to 7 psig), or any value between minimum and maximum values of operating range.

2. Capsules with the travel stops set may be pressured to this value without permanent zero shift.

CAPSULAR

STANDARD RANGES

0 to 150 mbar 0 to 400 mbar 0 to 0.6 bar

Positive

pressure

Vacuum

Compound

Positive

pressure

Vacuum

Compound

0.2 to 1 bar 0 to 1 bar

0 to 1.4 bar 0 to 1.6 bar

0.4 to 2 bar 0 to 2 bar

-150 to 0 mbar

-340 to 0 mbar

-400 to 0 mbar

-0.6 to 0 bar

-1 to 0 bar

-50 to 100 mbar

-175 to 175 mbar

-150 to 250 mbar

-0.2 to 0.4 bar

-0.4 to 0.6 bar

-0.6 to 0.8 bar

-1 to 0.6 bar

-1 to 1 bar 0 to 60 inch wc

0 to 5 psig 0 to 10 psig 3 to 15 psig 0 to 15 psig

0 to 20 psig 6 to 30 psig 0 to 30 psig

-5 to 0 inch Hg

-10 to 0 inch Hg

-20 to 0 inch Hg

-30 to 0 inch Hg

-30 to 30 inch wc

-5 inch Hg to 2.5 psig

-10 inch Hg to 5 psig

-15 inch Hg to 7.5 psig

-20 inch Hg to 10 psig

-30 inch Hg to 15 psig

100 mbar 350 mbar

0.35 bar

0.4 bar

0.5 bar

0.7 bar 1 bar

0.8 bar 1 bar

85 mbar 170 mbar 350 mbar

0.35 bar

0.5 bar 100 mbar

175 mbar 350 mbar

0.35 bar

0.5 bar

0.7 bar 1 bar 1 bar

40 inch wc

2.5 psig 5 psig 6 psig

7.5 psig 10 psig

12 psig 15 psig

2.5 inch Hg 5 inch Hg 10 inch Hg 15 inch Hg

40 inch wc

2.5 psig 5 psig

7.5 psig 10 psig 15 psig

SPAN

Min Max Min Max

160 mbar 700 mbar

0.7 bar

0.8 bar 1 bar

1.4 bar 2 bar

1.6 bar 2 bar

170 mbar 340 mbar 700 mbar

0.7 bar 1 bar

160 mbar 350 mbar 700 mbar

0.7 bar 1 bar

1.4 bar 2 bar 2 bar

60 inch wc 5 psig 10 psig 12 psig 15 psig

20 psig 24 psig 30 psig

5 inch Hg 10 inch Hg 20 inch Hg 30 inch Hg

60 inch wc 5 psig 10 psig

15 psig 20 psig 30 psig

OPERATING RANGE

-350 mbar

-1 bar

-350 mbar

-480 mbar

-1 bar

-350 mbar

-480 mbar

-1 bar

-10 inch Hg

-14 inch Hg

-30 inch Hg

-10 inch Hg

-14 inch Hg

-30 inch Hg

-10 inch Hg

-14 inch Hg

-30 inch Hg

350 mbar 1 bar 1 bar

1.4 bar

1.7 bar

2.4 bar 2 bar

2.4 bar 350 mbar

480 mbar 1 bar 1 bar

1.4 bar 350 mbar

480 mbar 1 bar 1 bar

1.4 bar

1.7 bar

2.4 bar

2.4 bar 5 psig

7 psig 15 psig 20 psig 20 psig

25 psig 30 psig 35 psig

5 psig 7 psig 15 psig 20 psig

5 psig 7 psig 15 psig

20 psig 25 psig 35 psig

34.5:4195K

November 2019

OPERATING

LIMIT

510 mbar

1.5 bar

1.5 bar 2 bar 2 bar

2.5 bar

3.5 bar 3 bar

3.5 bar 510 mbar

724 mbar

1.5 bar

1.5 bar 2 bar

510 mbar 724 mbar

1.5 bar

1.5 bar 2 bar

2.5 bar

3.5 bar

7.5 psig

10.5 psig

22.5 psig 30 psig 30 psig

37.5 psig 45 psig

52.5 psig

7.5 psig

10.5 psig

22.5 psig 30 psig

7.5 psig

10.5 psig

22.5 psig

30 psig

37.5 psig

52.5 psig

(2)

Table 3. Optional Process Connection Adaptors

BAR INPUT

RANGE

Up to 0 to 400

0 to 400 to 0 to 600

PSIG INPUT

RANGE

Up to 0 to 5000

0 to 5000 to 0 to 10,000

CONNECTION

Size Material

 1/2 NPT external or  1/2 NPT internal

1/2 NPT internal stainless

1/2 NPT external stainless

 steel or  stainless

steel

Table 4. Supply Pressure Data

Normal

Output Signal Range

0.2 to 1.0 or 0 and 1.4 (diff gap)

Bar

0.4 to 2.1 or 0 and 2.4 (diff gap)

3 to 15 or 0 and 20 (diff gap) 20 40

Psig

6 to 30 or 0 and 35 (diff gap) 35 40

1. If this pressure is exceeded, control stability may be impaired.

2. If this pressure is exceeded, damage to controller components may result.

Operating

Supply

(1)

Pressure

1.4 2.8

2.4 2.8

Maximum

Pressure

(2)

Limit

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