4196 Temperature Controllers
D200054X012
Fisherr 4196 Temperature Indicating
Controllers
Product Bulletin
34.6:4196
May 2013
Fisher 4196 temperature indicating controllers show
process temperature and set point on an easy‐to‐read
process scale. The controllers are used in industries
requiring accurate process monitoring and
temperature control.
A temperature bulb (figure 6) measures process
temperature. A 4196 controller then compares
process temperature with an operator‐ adjusted set
point. The controller delivers a pneumatic signal to a
control element. The control element changes the
process temperature 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.
SET POINT
ADJUSTMENT
PROCESS
TEMPERATURE
INDICATOR
W5823
PIPESTAND‐MOUNTED CONTROLLER
www.Fisher.com
W5824
SUPPLY
PRESSURE GAUGE
OUTPUT
PRESSURE
GAUGE
INTERIOR OF CONTROLLER
Product Bulletin
34.6:4196
May 2013
Specifications
4196 Temperature Controllers
D200054X012
Available Configurations
See table 1
Process Sensor Range (Input Signal)
Type: Temperature between -73 and 371_C (-100 and
700_F). See table 2 for available ranges
Minimum Span: 60_C or 100_F
Maximum Span: 300_C or 600_F
Output Signal
Proportional or Proportional‐Plus‐Reset Range:
J 0.2 to 1.0 bar (3 to 15 psig) or J 0.4 to 2.0 bar
(6 to 30 psig)
Differential Gap Output:
(0 and 20 psig) or
J 0 and 2.4 bar (0 and 35 psig)
Action: Field‐reversible between
J 0 and 1.4 bar
J direct (increasing
sensed temperature increases output pressure) or
reverse (increasing sensed temperature decreases
output pressure)
Process Scale
Matched to the range of the sensing element as
(1)
standard. Optional
scales available.
Supply and Output Connections
1/4 NPT internal
Supply Pressure Requirements
(2)
See table 3
Supply Pressure Medium
Air or natural gas
(3)
Remote Set Point Pressures
J 0.2 to 1.0 bar (3 to 15 psig) or J 0.4 to 2.0 bar
(6 to 30 psig)
J
‐continued‐
Maximum Allowable Pressure in Closed Vessel
(For Temperature Element Assembly)
(4)
9.7 mm (3/8‐Inch) Diameter Temperature Bulb:
69 bar (1000 psig)
14.3 mm (9/16‐Inch) Diameter Temperature Bulb:
34.5 bar (500 psig)
Construction Materials
See table 4
Controller Adjustments
Proportional Band: 5 to 500% of process scale range
Reset: Adjustable from 0.01 to more than 74 min per
repeat (from 100 to less than 0.0135 repeats per min)
Differential Gap Controllers: Adjustable from 1 to
100% of process scale range
Set Point: Continuously adjustable from 0 to 100% of
the scale range
Controller Performance
Repeatability: 0.4% of output span
Dead Band: Less than 0.4% of process scale range
Time Constant of Temperature Bulb: 6 to 12 seconds
for a 93_C (200_F) span (bare bulb in agitated liquid)
Steady‐State Air Consumption
(5)(6)
0.2 to 1.0 Bar (3 to 15 psig) Output:
3
0.09 m
0.4 to 2.0 Bar (6 to 30 psig) Output:
0.13 m
Delivery Capacity
0.2 to 1.0 Bar (3 to 15 Psig) Output:
6.4 m
0.4 to 2.0 Bar (6 to 30 Psig ) Output:
9.4 m
/hr (3.5 scfh)
3
/hr (5.0 scfh)
3
/hr (240 scfh)
3
/hr (350 scfh)
(5)
Table of Contents
Features 4.....................................
Construction Features 6.........................
Principle of Operation 7.........................
Proportional-Only Controllers 7..................
Proportional-Plus-Reset 7.......................
Proportional-Plus-Reset-Plus Rate Controllers 7....
Differential Gap Controllers 7...................
Anti-Reset Windup Option 7....................
2
Remote Set Point Option 9.....................
Auto/Manual Station Option 9...................
External Feedback Option 10....................
Installation 11.................................
Ordering Information 14.........................
Applications 14...............................
Construction 14...............................
4196 Temperature Controllers
D200054X012
Specifications (continued)
Exhaust Capacity
0.2 to 1.0 Bar (3 to 15 Psig) Output:
3
/hr (186 scfh)
5.0 m
0.4 to 2.0 Bar (6 to 30 Psig ) Output:
3
7.9 m
/hr (295 scfh)
Operative Ambient Temperature Limits
–40 to 70_C (–40 to 160_F)
Complies with the requirements of ATEX Group II
Category 2 Gas and Dust
Note: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology.
1. Consult your Emerson Process Management sales office for additional information.
2. The pressure/temperature limits in this document and any applicable standard or code limitation should not be exceeded.
3. This product can be used with natural gas. Natural gas should not contain more than 20 ppm of H
4. At 40_C (100_F )
5. Normal m
6. Without auto/manual switch. With auto/manual switch, air consumption is 10.0 scfh (0.28 normal m
7. Also for transportation and storage limits.
3
/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).
(5)
(2)(7)
Housing
Designed to NEMA 3 (Weatherproof) and IEC 529
IP54 specifications
Mounting
Controller can be mounted on
J wall, or J pipestand
Approximate Weight
4.5 kg (10 lb)
S.
2
3
/hr) for either output range.
Product Bulletin
34.6:4196
May 2013
J actuator, J panel,
Table 1. Available Configurations
TYPE
NUMBER
4196A
4196AE
4196AM
4196AME
4196B
4196BE
4196BF
4196BFE
4196BM
4196BME
4196BFM
4196BFME
4196C
4196CE
4196CF
4196CFE
4196CM
4196CME
4196CFM
4196CFME
4196S
4196SE
4914HSM
4196SME
1. Reverse‐acting constructions are designated by an R added to the type number.
(1)
Proportional‐
Only
Suffix Letter A
X
X
X
X
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
Proportional‐
Plus Reset
Suffix Letter B
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
X
X
X
X
X
X
X
X
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
Proportional‐Plus
Reset‐Plus‐Rate
Suffix Letter
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
CONFIGURATIONS
Differential
Gap
C
X
X
X
X
X
X
X
X
Suffix Letter
S
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
X
X
X
X
Anti‐Reset
Windup
Suffix Letter
F
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
X
X
‐ ‐ ‐
‐ ‐ ‐
X
X
‐ ‐ ‐
‐ ‐ ‐
X
X
‐ ‐ ‐
‐ ‐ ‐
X
X
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
‐ ‐ ‐
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
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
‐ ‐ ‐
X
3
Product Bulletin
34.6:4196
May 2013
4196 Temperature Controllers
D200054X012
Table 2. Available Temperature Ranges of Temperature Bulbs
TEMPERATURE SPAN
_C Minimum _C Maximum _C _C mm _C Minimum _C Maximum _C
100 100
150 150 0 to 150 -30 to 160 -15 225
Metric
Units
U. S.
Units
1. Contact your Emerson Process Management sales office about other spans and ranges.
2. All temperature bulbs are tested to +50 percent of overrange limits. With travel stops in place, if the overrange limits are exceeded, the controller may require recalibration.
3. With travel stops in place, temperatures in excess of these values may cause permanent damage to the temperature element.
60 60
150 150
170 200 0 to 200 -75 to 230 -20 300
275 300 0 to 300 -75 to 370 -30 450 590
_F Minimum _F Maximum _F _F Inch _F Minimum _F Maximum _F
175 200
250 300 0 to 300 -25 to 325 -30 450
100 100
125 150 50 to 200 -25 to 225 35 275
270 300 100 to 400 25 to 400 70 550
300 400 0 to 400 -100 to 450 -40 600
525 600 0 to 600 -100 to 700 -60 900 1100
ELEMENT
RANGE
0 to 100
50 to 150 40 200
-15 to 85 -25 135
-20 to 40 -30 to 95
0 to 60 -30 to 95 -6 90
60 to 120 38 to 150 54 150
-75 to 75 -75 to 135 -90 150
50 to 200 -5 to 200 35 275
0 to 200
50 to 250 30 350
100 to 300 80 400
0 to 100
50 to 150 40 200
100 to 200 75 to 300 65 250
OPERATING
RANGE
‐15 to 150
0 to 300
-25 to 200
(1)
TEMPERATURE
BULB DIAMETER
9.5
14.3
3/8
9/16
OVERRANGE LIMITS
-10 150
-26 70
-20 300
-10 150
(2)
MAXIMUM
TEMPERATURE
230
190
400
450
375
750
(3)
Features
n Easy Maintenance—Simple design allows fast, easy
maintenance and minimal spare parts inventory.
n Easy Adjustment—Adjusting the set point, adjusting
the zero and span of the process pointer, and
switching between direct and reverse action are
accomplished quickly and without special tools.
Also, no interaction occurs when the set point and
proportional band are adjusted.
n Vibration Resistance—The simple design and low
mass of internal parts allow the controller to
withstand the vibrations found in most plant
environments.
n Highly Visible Display—Two red pointers on a
114 mm (4‐1/2 inch), white‐on‐black scale show
process temperature and deviation from set point
at a glance. Two other gauges monitor supply and
output pressures.
n Low Air Consumption—The relay and nozzle design
reduces steady‐state air consumption to as low as
0.09 m
n Corrosion Resistance—Tough plastic housing resists
3
/h (3.5 scfh).
corrosive environments. Internal constructions are
available to resist corrosive supply pressure media
such as sour gas.
4
4196 Temperature Controllers
D200054X012
Table 3. Supply Pressure Data
Output Signal Range
0.2 to 1.0 or
Bar
Psig
1. If this pressure is exceeded, control stability may be impaired.
2. If this pressure is exceeded, damage to the controller may result.
0 and 1.4 (differential gap)
0.4 to 2.0 or
0 and 2.4 (differential gap)
3 to 15 or
0 and 20 (differential gap)
6 to 30 or
0 and 35 (differential gap)
Table 4. Construction Materials
Part Standard Material Optional Material
Thermal element assembly
Case and cover Polyester plastic - - -
Exterior tubing Copper
Exterior fittings C36000 (brass)
Interior tubing S30400 (304 stainless steel) - - -
Nozzle S30300 - - -
Flapper S31600 (316 stainless steel) - - -
Relay springs
Relay O-rings Nitrile - - -
Relay diaphragms Nitrile - - -
Other relay metal parts
Feedback bellows assembly C51000 (bronze) S32100 (321 stainless steel)
Supply and output gauges Brass (wetted parts only) Stainless steel (wetted parts only)
Bushing Stainless steel - - -
Thermowell Stainless steel
Remote set point element
1. For the temperature bulb, capillary tube, and armor.
N09902 nickel alloy and
S30300 (303 stainless steel)
(1)
JS30200 (302 stainless steel) or Jsteel
JAluminum or Jstainless steel
JN09902 nickel alloy or
JS30300
Normal Operating Supply
(1)
Pressure
1.4 2.8
2.4 2.8
20 40
35 40
- - -
JStainless steel or Jpolyethylene
JStainless steel or Jpolyethylene
- - -
- - -
JCarbon steel or JN04400 nickel alloy
- - -
Product Bulletin
34.6:4196
May 2013
Maximum Pressure to Prevent
Internal Damage
(2)
5
Product Bulletin
34.6:4196
May 2013
Figure 1. Controller Construction Detail
4196 Temperature Controllers
D200054X012
METAL BALL
SWITCHING
ZONE
INDICATOR
LOADER KNOB
AUTO/MANUAL
SWITCH
INPUT ELEMENT
CONNECTING LINK
PROCESS POINTER
ZERO ADJUSTMENT
PROCESS POINTER
SPAN ADJUSTMENT
RESET ADJUSTMENT
4196B CONTROLLERS
Note:
1 White portion of proportional band adjustment enables direct controller action; black portion enables reverse controller action.
W5824
Construction Features
W3679
AUTO/MANUAL OPTION
W3599‐1
RATE AND RESET ADJUSTMENT
4196C CONTROLLERS
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
Simplified Relay Maintenance
A clean‐out wire provides a fast, easy means of
cleaning the relay primary orifice during service.
tubing. Conversion from proportional to differential
gap control requires the addition of one piece of
tubing. These conversions require removing the
controller from the case.
W3439
PROPORTIONAL BAND
ADJUSTMENT
1
Pressure Protection for the Case
A rubber plug in the plastic case pops out to vent
excessive pressure buildup inside the case before
structural damage can occur.
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
6
Anti‐Reset Windup
Anti‐reset windup is available with proportional‐plus‐
reset and proportional‐plus‐reset‐plus‐rate controllers.
A relief valve can be adjusted to limit reset windup on
either increasing or decreasing output.
Remote Set Point
The capability of adjusting the set point from a remote
location is available as an option with all 4196
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
4196 Temperature Controllers
D200054X012
Product Bulletin
34.6:4196
May 2013
switch, showing either automatic or manual control
mode, is clearly visible with the controller cover
closed.
External Feedback
In controller override applications, this option
minimizes reset windup in the secondary controller.
This option is available only with the two‐mode
(4196B) controllers.
Principle of Operation
The schematic diagram in figure 2 emphasizes detail of
construction variations between control modes. Refer
to table 1 to relate type number suffixes to the
construction variations.
Proportional‐Only Controllers
(4196A)
figure 2). With the controller in the reverse‐acting
mode, an increase in process temperature causes a
decrease in output pressure.
Proportional‐Plus‐Reset Controllers
(4196B)
This controller operation is similar to that of
proportional‐only controllers except that output
pressure is fed back to the reset bellows as well as to
the proportional bellows. In operation,
proportional‐plus‐reset controllers minimize the offset
between the process temperature and set point.
Proportional‐Plus‐Reset‐Plus‐Rate
Controllers (4196C)
Figure 3 shows details of the reset/rate option.
Controllers with this option have a rate valve, an
adjustable restriction that momentarily maintains the
controller gain to accelerate the corrective action for
slow temperature systems. A proportional‐plus‐
reset‐plus‐rate controller responds to a change in
process temperature as follows:
The input element is connected to the process pointer
and to the flapper by connecting links. As the process
temperature increases (in a direct‐acting controller),
the flapper moves toward the nozzle, restricting flow
through the nozzle and increasing nozzle pressure.
When this occurs, relay action increases the output
pressure (delivery) of the controller. Output pressure is
fed back to the proportional bellows. The action of the
proportional bellows counters the flapper movement
that resulted from the process temperature change
and backs the flapper away from the nozzle until the
controller reaches a point of equilibrium.
The set point adjustment changes the proximity of the
nozzle and flapper as does a change in process
temperature except that, when the set point is
changed, the nozzle moves with respect to the flapper.
The proportional band adjustment knob positions the
nozzle on the flapper. Increasing (widening) the
proportional band moves the nozzle to a position on
the flapper where less flapper motion occurs,
decreasing the gain of the controller. Decreasing
(narrowing) the proportional band moves the nozzle
toward a position where more flapper motion occurs,
increasing the gain. Controller action is changed from
direct to reverse by turning the proportional band
adjustment knob to position the nozzle to a point on
the flapper where the direction of the flapper motion
versus input motion is reversed (see flapper detail in
First, the rate action delays the gain reduction just long
enough to allow the system to respond to the change,
but not long enough for the system to become
unstable. Then, the low gain provided by the
proportional action keeps the system stable. Finally,
reset action slowly increases the gain and returns the
process temperature toward set point.
Differential Gap Controllers (4196S)
In this version, feedback pressure does not counteract
the change in flapper position. Instead, the change is
reinforced because feedback pressure is piped directly
to the reset bellows only. This construction causes the
controller output to switch from full supply pressure to
zero pressure or vice versa.
Anti‐Reset Windup Option
Anti‐reset windup is available on all 4196B and 4196C
controllers and is designated by the suffix letter F in
the type number. The differential relief valve operates
when the difference between proportional bellows
pressure and reset bellows pressure reaches a
predetermined value. Anti‐reset windup reduces
overshoot of the process temperature that can result
from large or prolonged deviation from set point. This
option can be adjusted to operate on either increasing
or decreasing output pressure.
7
Product Bulletin
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
34.6:4196
May 2013
Figure 2. Schematic of Fisher 4196 Temperature Controllers
4196 Temperature Controllers
D200054X012
MANUAL SET POINT
ADJUSTMENT
PROCESS POINTER
REMOTE SET POINT
CONNECTED HERE
INPUT ELEMENT
CONNECTED HERE
CONNECTING
LINK
BEAM
SUPPLY PRESSURE
OUTPUT PRESSURE
NOZZLE PRESSURE
RESET PRESSURE
TO RESET
BELLOWS
TO
PROPORTIONAL
BELLOWS
RESET
VALVE
TO
NOZZLE
SUPPLY PRESSURE
PROPORTIONAL‐PLUS‐RESET CONTROL
TO
NOZZLE
TO
PROPORTIONAL
BELLOWS
TO RESET
BELLOWS
RESET BELLOWS (VENTED)
PROPORTIONAL
BELLOWS
FLAPPER
NOZZLE
PROPORTIONAL‐ONLY CONTROL
TO RESET
BELLOWS
OUTPUT
TO
PROPORTIONAL
BELLOWS
RELAY
PROPORTIONAL‐PLUS‐RESET
CONTROL WITH ANTI‐RESET WINDUP
TO
PROPORTIONAL
OUTPUT
RELAY
BELLOWS
RELIEF VALVE
RELIEF
VALVE
PROPORTIONAL
BAND ADJUSTMENT
DIRECT ACTION
QUADRANT
SUPPLY PRESSURE
TO
NOZZLE
RESET VALVE
TO RESET
BELLOWS
SUPPLY PRESSURE
TO
NOZZLE
FEEDBACK
LINK
FEEDBACK
MOTION
OUTPUT
RELAY
REVERSE ACTION
QUADRANT
FLAPPER
PIVOT
INPUT
MOTION
FLAPPER DETAIL
OUTPUT PRESSURE
TO CONTROL DEVICE
RELAY
TO
NOZZLE
TO RESET
BELLOWS
OUTPUT
RELAY
SUPPLY PRESSURE
DIFFERENTIAL GAP
CONTROL
OUTPUT
RELAY
46A9764‐C
C0573‐1
8
SUPPLY
RATE VALVE
RESET VALVE
PRESSURE
PROPORTIONAL‐PLUS‐RESET‐PLUS
RATE CONTROL
SUPPLY
RATE VALVE
RESET VALVE
PRESSURE
PROPORTIONAL‐PLUS‐RESET‐PLUS‐RATE
CONTROL WITH ANTI‐RESET WINDUP
4196 Temperature Controllers
D200054X012
Product Bulletin
34.6:4196
May 2013
Figure 3. Schematic of Reset/Rate Option
RELAY OUTPUT
PRESSURE
19A5000-A
A3237-2
RESET
BELLOWS
RESET
VALVE
PROPORTIONAL
BELLOWS
RATE
VALVE
GAIN
LIMITER
Remote Set Point Option
The optional capability to change the controller set
point from a remote location is available with all 4196
controllers. This option is designated by the suffix
letter M in the type number.
Auto/Manual Option
Controllers with the auto/manual option (designated
by the suffix letter E in the type number) have piping
on the output side of the relay as shown in figure 4.
Supply pressure to the relay is also applied to the
manual loader. The manual loader, functioning as a
regulator, applies pressure to one side of the plastic
tube and to the auto/manual switch. Output pressure
from the relay registers on the other side of the plastic
tube as well as in the auto/manual switch.
When the auto/manual switch is in the MANUAL
position, the output of the manual loader becomes the
output of the controller. The output of the manual
loader is adjustable using the manual loader knob.
When the auto/manual switch is in the AUTO position,
the output of the relay is channeled through the switch
to become the output of the controller.
Before the auto/manual switch is operated, the output
of the relay must equal the output of the manual
loader to avoid bumping the process. Adjusting the set
point varies the pressure on the left‐hand side of the
plastic tube. Adjusting the manual loader knob varies
the pressure on the right‐hand side. When the
pressures are equal, the metal ball is centered in the
tube. Pressure imbalance will force the ball to one end
of the tube where it forms a seal, blocking air flow
through the tube.
9
Product Bulletin
34.6:4196
May 2013
Figure 4. Schematic of Auto/Manual Option
4196 Temperature Controllers
D200054X012
AUTOMATIC
POSITION
OUTPUT PRESSURE
TO CONTROL DEVICE
SUPPLY PRESSURE
RELAY OUTPUT PRESSURE
SUPPLY PRESSURE
MANUAL LOADER OUTPUT PRESSURE
48A5230‐A
A2927‐1
AUTO/MANUAL
SWITCH
RELAY
MANUAL LOADER
MANUAL
LOADER
KNOB
PLASTIC TUBE
METAL
BALL
MANUAL
POSITION
AUTO/MANUAL
SWITCH
OUTPUT PRESSURE
TO CONTROL DEVICE
External Feedback Option
External feedback is available with all 4196B
controllers. Controllers with this option have an
external process connection on the bottom of the
controller case (see figure 8). This connection breaks
the positive feedback (reset) loop inside the controller
and brings it outside (see figure 5). The connection
allows the positive feedback loops of two controllers
(primary and secondary) to be tied together when the
controllers are used in an override application. Thus
connected, the feedback loop of the secondary
controller tracks the primary controller, minimizing
reset windup.
Figure 5. Schematic of External Feedback Option
TO RESET
BELLOWS
RESET
VALVE
TO
PROPORTIONAL
BELLOWS
EXTERNAL FEEDBACK TO
OUTPUT OF HIGH OR LOW
SELECT RELAY
47A0975‐A
A3238‐1
TO
NOZZLE
OUTPUT
RELAY
SUPPLY
PRESSURE
SUPPLY PRESSURE
OUTPUT PRESSURE
NOZZLE PRESSURE
RESET PRESSURE
10
4196 Temperature Controllers
D200054X012
Product Bulletin
34.6:4196
May 2013
Installation
In a typical installation, a 4196 temperature controller
mounts on a pipestand. The capillary tube length
determines the installation site.
When installing a controller, the vent must point
down. When the temperature bulb (dimensions shown
bulb or when the process fluid is corrosive, the
temperature bulb screws into a thermowell (see
figure 7) that penetrates the vessel. Lag type bushings
and thermowells (also shown in figure 7) are used
where extra length is required, such as installation in a
process vessel that is coated with insulation.
Dimensions for bushings and thermowells are shown
in figure 7 and tables 6 and 7.
in table 5 and figure 6) is used within a closed vessel,
the bulb screws into a bushing (see figure 7) that
penetrates the vessel. Where pressure within the
closed vessel exceeds the limits of the temperature
See figure 8 for basic controller dimensions. Figure 9
shows dimensions for specific mounting
configurations.
Figure 6. Dimensions for Temperature Bulb with Adjustable Union (also see table 5)
6.4 ARMOR
(0.25)
2
mm
(INCH)
Notes:
1 Available in 4.6 and 7.6 m (15 and 25 foot) lengths. Minimum bending radius is 25 mm (1 inch).
2 Bendable extension length, Minimum bending radius is 32 mm (1-1/4 inch).
3. Temperature bulb may be used with either bushing or thermowell connection parts per SAMA RC6‐10.
38A2273‐E
A6921‐1
Table 5. Dimensions for Temperature Bulb with Adjustable Union
TEMPERATURE SPANS DIMENSION
SAMA STYLE
Adjustable Union
(Standard Construction)
1. NPSM‐-National Straight Pipe Threads for Mechanical Joints; UNEF‐‐Unified Thread‐Extra
100 and 150
60, 150 through 300
_C _F B
200 and 300,
100 and 150, 300 through 600
(1)
1/2‐14 NPSM
1‐20 UNEF‐2A
J X Y
mm Inch mm Inch mm Inch
445
584
17.50
23.00
145
178
5.70
7.001014
0.38
0.56
11
Product Bulletin
34.6:4196
May 2013
Figure 7. Bushing and Thermowell Dimensions (also see tables 6 and 7)
4196 Temperature Controllers
D200054X012
44
(1.75)
2
25
(100)
A
1
U
THERMOWELLS WITHOUT LAGGING
2
121
(4.75)
25
(100)
A
1
U
2
A
B
(1.75)
BUSHINGS WITHOUT LAGGING
2
B
E
A
44
C
3/4‐14 NPT
D
C
3/4‐NPT
C
C
BUSHINGS WITH 76 mm (3‐INCH) LAGGING THERMOWELLS WITH 76 mm (3‐INCH) LAGGING
Notes:
1 Tolerances for this dimension are as follows:
± 1.5 mm (0.06 inch) when length is 305 mm (12 inches) or less
± 3.2 mm (0.125 inch) when length is greater than 305 mm (12 inches)
2 7/8‐inch hex for 3/8‐inch temperature bulb; 1‐1/8‐inch hex for 9/16‐inch temperature bulb
A3240-3
Table 6. Bushing Dimensions
TEMPERATURE BULB
DIAMETER
mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch
10 3/8 1/2‐14 NPSM 11 0.44 11 0.44
14 9/16 1‐20 UNEF 19 0.75 16 0.63
1. Seat area per SAMA Standard RC‐17‐10.
(1)
A
BUSHINGS WITHOUT
LAGGING
B C B C D E
11 0.44 12 0.47 113 4.44 11 0.44
19 0.75 17 0.66 121 4.75 16 0.63
BUSHINGS WITH LAGGING
B
B
mm
(INCH)
Table 7. Thermowell Dimensions
TEMPERATURE BULB DIAMETER
mm Inch mm Inch mm Inch
10 3/8
14 9/16 3/4‐14 NPT 22 0.88 1‐20 UNEF‐2B
1. Seat area per SAMA Standard RC‐17‐10.
12
A
1/2‐14 NPT
3/4‐14 NPT
16
20
B
0.63
0.77
(1)
C
1/2‐14 NPSM‐2B
U (INSERTION LENGTH)
191
267
206
191
267
406
610
7.5
10.5
16
7.5
10.5
16
24
4196 Temperature Controllers
D200054X012
Figure 8. Controller Dimensions
Product Bulletin
34.6:4196
May 2013
148
(5.81)
1/4‐18 NPT
EXTERNAL
FEEDBACK
CONNECTION
WHEN
APPLICABLE
(4196B ONLY)
CAPILLARY
TUBE
1/4‐18 NPT
SUPPLY PRESSURE CONNECTION
1/4‐18 NPT
CONTROLLER OUTPUT CONNECTION
1/4‐18 NPT
VENT CONNECTION
BOTTOM VIEW
A3239‐3
Figure 9. Mounting Dimensions
92
(3.62)
1/4‐18 NPT
REMOTE SET CONNECTION
WHEN APPLICABLE
268
(10.56)
FRONT VIEW REAR VIEW
84
(3.29)
63
(2.49)
130
(5.12)
330
(13.00)
102
(4.00)
51
(2.00)
87
(3.44)
5/16 - 18 UNC‐2B
3 HOLES
(MOUNTING)
225
(10.04)
mm
(INCH)
161
(6.35)
HORIZONTAL PIPE
222
(8.75)
62
(2.43)
36A9757-A
SIDE VIEW VERTICAL PIPE
PIPESTAND MOUNTING
B1847‐2
95
(3.75)
36A9759-A
TOP VIEW
REAR VIEW
PANEL MOUNTING
13
(0.50)
62
(2.43)
14R
(0.56R)
236
(9.31)
306
(12.06)
DIMENSIONS OF PANEL CUTOUT
TOP VIEW
(10.25)
13
(0.50)
36A9761-B
13
(0.50)
REAR VIEW
WALL MOUNTING
260
152
(6.00)
62
(2.43)
mm
(INCH)
13
Product Bulletin
34.6:4196
May 2013
4196 Temperature Controllers
D200054X012
Ordering Information
Applications
When ordering, specify:
1. Description of the service
2. Temperature range of the process
3. Ambient temperature
4. Velocity of the process fluid (if measuring the
temperature of a process fluid flowing through a
pipe)
5. Pressure in the process vessel (if closed)
6. Bushing or thermowell. Specify either busing or
thermowell (If required) when the temperature bulb
is used in a closed vessel. Refer to figure 7 for
available sizes. Specify straight‐shank or
tapered‐shank thermowell. Tapered‐shank
thermowells, with their high strength‐to‐weight
ratio, permit operation in higher process fluid
velocities than do straight‐shank thermowells.
Construction
Refer to the Specifications section and the
Construction Features section. Carefully review each
specification and feature, specifying your choice
whenever a selection is offered. Pipestand mounting
hardware will be supplied unless some other mounting
method is specified.
Refer to table 1 for type numbers (add R to any type
number if reverse action is desired).
14
4196 Temperature Controllers
D200054X012
Product Bulletin
34.6:4196
May 2013
15
Product Bulletin
34.6:4196
May 2013
4196 Temperature Controllers
D200054X012
Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
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governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
E 1984, 2013 Fisher Controls International LLC. All rights reserved.
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