Emerson Fisher 4211 Manual de usuario

www.Fisher.com

Fisher™4200 Electronic Position Transmitters

Contents

Introduction 2.................................

Scope of Manual 2.............................

Description 2.................................

Specifications 5...............................

Educational Services 5.........................

Installation 6..................................

Hazardous Area Classifications and

Special Instructions for “Safe Use” and

Installations in Hazardous Locations 6..........

Mechanical Connections 7......................

Sliding‐Stem Actuator Mounting 7...........

Rotary‐Shaft Actuator Mounting 8............

Long‐Stroke Sliding‐Stem Actuator

Mounting Fisher 585C and 470‐16 8........

Long‐Stroke Sliding‐Stem Actuator

Mounting Fisher 585CLS and 490 9.........

Electrical Connections 10.......................

Conduit 10...............................

Field Wiring 10............................

Potentiometer Alignment 13....................

Direct or Reverse Action 14.....................

Operating Information 15........................

Initial Considerations 15........................

Transmitter and Position Switch

Conditions 15..........................

Normal Operation 16..........................

Calibration 17..................................

Test Equipment Required 18....................

Test Connections to the Field Wiring

Compartment 19...........................

Transmitter Circuit Zero and Span

Adjustment 20.............................

High and Low Position Switch Adjustment 20......

Setting the High Position Switch 21...........

Setting the High Position Switch

Deadband 21...........................

Setting the Low Position Switch 21...........

Setting the Low Position Switch

Deadband 22...........................

Position Switch Circuit Shutoff 22................

Figure 1. Typical Fisher 4200 Position Transmitters

W4273‐1

SLIDING‐STEM

ACTUATOR MOUNTING

W4274‐1

ROTARY

ACTUATOR MOUNTING

Principle of Operation 22........................

Transmitter Circuit 23..........................

Position Switch Circuit 24.......................

Maintenance 25................................

Troubleshooting Procedures 26.................

Transmitter Circuit 26......................

Position Switch Circuit 26...................

Parts Ordering 31...............................

Parts Kits 31...................................

Parts List 32...................................

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Introduction

Scope of Manual

This instruction manual provides installation, operating, calibration, maintenance, and parts ordering information for

Fisher 4200 electronic position transmitters (figure 1). Refer to separate instruction manuals for information on the

actuator and valve.

Do not install, operate, or maintain a 4200 electronic position transmitter without being fully trained

and qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid

personal injury or property damage, it is important to carefully read, understand, and follow all of the

contents of this manual, including all safety cautions and warnings. If you have any questions regarding

these instructions contact your Emerson sales office before proceeding.

Description

4200 electronic position transmitters combine Fisher field‐proven electronic and mechanical expertise in a versatile,

accurate instrument. They sense the position of a sliding‐stem actuator, rotary actuator, vent, damper, or other device

and send a standard (4‐20 mA) output signal to an indicating device, a process control system or programmable logic

controller. 4200 transmitters are available as a transmitter only, as a transmitter with integral high and low position

switches, or with high and low position switches only. Refer to the nameplate to determine the type of transmitter.

Use the Type number and table 2 to determine the output and travel ranges available from the transmitter.

When the instrument is mounted, the potentiometer shaft (figure 2) is mechanically connected to the device to sense

mechanical motion. Except for the 4215 transmitter, all types of transmitters use a single potentiometer for position

input. The 4215 transmitter uses dual potentiometers mounted on the same shaft. This permits using individual

potentiometers for the transmitter and the position switch circuits, providing additional electrical isolation. For

long‐stroke applications, a multi‐turn potentiometer attached to a travel transducer assembly senses linear motion of

the actuator stem or other device.

Figure 2. Transmitter Dimensions

PORT 1/2 NPT

(2 PLACES)

TRANSMITTER

COMPARTMENT

FIELD WIRING

COMPARTMENT

POTENTIOMETER

SHAFT

ALLOW 254 mm (10 INCHES)

FOR MAINTENANCE (2 PLACES)

(INCH)

(2.00)

5/16‐18UNC

13 DEEP

(0.53)

(2.00)

CAP

(2 PLACES)

6 (0.25)

DIA.

102

(4.00)

(2.62) 21

(0.81)

159

(6.25)

102

(4.00)

(1.38)

(3.00) 67

(2.62)

BOTTOM VIEW

END VIEW SIDE VIEW

19A7968-E

B1910-4

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Table 1. Specifications

Available Configurations

See table 2

Input Signal

Source: Single potentiometer is standard or a dual

potentiometer is available for the 4215 only. Refer to

table 3 for zero and span limits

Output Signal

Range: 4 to 20 milliampere DC transmitter output

(4210, 4211, 4215, 4220, and 4221 transmitters)

Load Impedance (transmitter only): See figure 3

Output Current Limit: 30 milliamperes DC maximum

Switches: ON/OFF condition of high and low position

switch relay (SPDT)

Power Supply Requirements

Transmitter Terminal

Voltage (VDC) Current1

Required

(mA)

Min Max

Transmitter Only 11 30 20 max.

Position Switch with

Transmitter 20 30 80 max.

Position Switch without

Transmitter 20 30 50 max.

1. Values indicate minimum power supply capabilities.

Recommended Power Supply

24 volts DC nominal

Position Switch Relays

Type: Two single‐pole, double‐throw relays (SPDT)

Service Rating: The relay contact rating is 5 amperes

at either 30 volts DC or 120 volts AC (resistive load)

Life Expectancy: 100,000 operations at rated load, or

50,000 operations at a typical inrush current of 10

amperes with 120 volts AC lamp or motor load

Reference Accuracy

±1% of output span. Includes combined effects of

hysteresis, linearity, and deadband

Repeatability

±0.25% of span

Operating Influences

Ambient Temperature: For a 38_C (100_F) change in

normal operating conditions, maximum zero shift is

±0.5%; maximum span shift is ±0.75% of span

Power Supply: Output signal changes less than ±0.1%

when operating terminal voltage varies between 11

and 30 volts DC

Electromagnetic Compatibility for 4211 and 4221:

Meets EN 61326‐1:2013

Immunity—Industrial locations per Table 2 of

the EN 61326‐1 standard. Performance is

shown in table 4 below.

Emissions—Class A

ISM equipment rating: Group 1, Class A

Operating Conditions

Condition

Normal and

Operative

Limits

Transportation

and Storage

Limits

Normal

Reference

Ambient

Temperature

-40 to 71_C

(-40 to 160_F)

-50 to 80_C (-60

to 180_F)

25_C

(77_F)

Ambient

Relative

Humidity

10 to 95% 10 to 95% 40%

Mounting

The instrument can be mounted on the actuator of

sliding‐stem or rotary valves or on other devices

Electrical Classification

CSA—Intrinsically Safe, Explosion-proof,

Dust Ignition-proof

FM—Intrinsically Safe, Explosion‐proof,

Dust Ignition-proof, Non‐Incendive

ATEX—Intrinsically Safe, Type n, Flameproof

IECEx—Intrinsically Safe, Type n, Flameproof

Other Classifications/Certifications

CUTR— Customs Union Technical Regulations

(Russian, Kazakhstan, Belarus, and Armenia)

KTL—Korea Testing Laboratory (South Korea)

NEPSI—National Supervision and Inspection Centre

for Explosion Protection and Safety of

Instrumentation (China)

PESO—Petroleum and Explosives Safety Organization

(India)

Contact your Emerson sales office for

classification/certification specific information

Housing

NEMA 4X; CSA Enclosure 4X; IP66

Approximate Weight

Transmitter Without Mounting Bracket: 1.8 kg

(4 pounds)

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

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Table 2. Available Fisher 4200 Series Configurations

TYPE NUMBER TRANSMITTER

ELECTRICAL

POSITION

SWITCHES

TRAVEL

DUAL

POTENTIOMETER

Standard Stroke

Up to 105 mm(1)

(Up to 4.125 Inches)

Long‐Stroke

Up to 610 mm(1)

(Up to 24 Inches)

4210

4211

4212

4215

- - -

4220

4221

4222

- - -

1. See table 3 for zero and span limits.

Table 3. Zero and Span Limits(1)

TYPE NUMBER

DEGREES OF

POTENTIOMETER ROTATION CONNECTION(2)

SLIDING‐STEM ACTUATOR TRAVEL

mm INCHES

Zero

Position

Span Zero

Position

Span Zero

Position

Span

Min. Max. Min. Max. Min. Max.

4210

4211

4212

4215

0 to 90 15 90

10 to 51 8 51 0 to 2 0.315 2

2 0 to 105 17 105 0 to 4.125 0.670 4.125

4220

4221

4222

0 to 884 150 884

12‐Inch Transducer 0 to 305 105 305 0 to 12 4.125 12

24‐Inch Transducer 0 to 610 305 610 0 to 24 12 24

1. Zero position is the range of values over which the transmitter zero can be adjusted. Span is the range of shaft rotation or stem travel the transmitter span can be adjusted. For example, a zero

position of 45 degrees and a span of 15 degrees means the transmitter output is 4 mA DC after 45 degrees of shaft rotation. The output then increases from 4 mA DC to 20 mA DC as the shaft

rotates from 45 to 60 degrees.

2. Refer to figures 15, 22, and 23 for locations of connections.

Figure 3. Power Supply Requirements

1000

750

500

250

650

03020

MINIMUM TRANSMITTER TERMINAL VOLTAGE

NOMINAL SUPPLY VOLTAGE

MAXIMUM TRANSMITTER TERMINAL VOLTAGE

OPERATING

REGION

LOAD IMPEDANCE (OHMS)

POWER SUPPLY VOLTAGE (VOLTS DC)

A6765

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Table 4. Fisher 4211 and 4221 Position Transmitter EMC Summary Results—Immunity

Port Phenomenon Basic Standard Test Level Performance

Criteria(1)

Enclosure

Electrostatic Discharge (ESD) IEC 61000‐4‐2 4 kV contact

8 kV air A

Radiated EM field IEC 61000‐4‐3

80 to 1000 MHz @ 10V/m with 1 kHz AM at 80%

1400 to 2000 MHz @ 3V/m with 1 kHz AM at 80%

2000 to 2700 MHz @ 1V/m with 1 kHz AM at 80%

Rated power frequency magnetic

field IEC 61000‐4‐8 60 A/m at 50 Hz A

I/O signal/control

Burst (fast transients) IEC 61000‐4‐4 1 kV A

Surge IEC 61000‐4‐5 1 kV (line to ground only, each) B

Conducted RF IEC 61000‐4‐6 150 kHz to 80 MHz at 3 Vrms

1 kHz AM at 80% A

Specification limit = ±1% of span

1. A = No degradation during testing. B = Temporary degradation during testing, but is self‐recovering.

For instruments equipped with position switches, the high relay position switch can be set at any point of travel. The

low relay position switch can be offset from the high relay position switch trip point by as little as 1/20 of the travel. In

the event of a power loss both position switch relays de‐energize, indicating loss of transmitter power.

Specifications

Specifications for the 4200 transmitters are listed in table 1.

WARNING

This product is intended for a specific current range, temperature range and other application specifications. Applying

different current, temperature and other service conditions could result in malfunction of the product, property damage or

personal injury.

Educational Services

Emerson Automation Solutions

Educational Services - Registration

Phone: +1-800-338-8158

E-mail: [email protected]

emerson.com/mytraining

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Installation

WARNING

Always wear protective clothing and eyewear when performing any installation operations to avoid personal injury or

property damage.

Check with your process or safety engineer for any additional measures that must be taken to protect against process

media.

If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this

instruction manual.

When a 4200 transmitter is ordered with an actuator, the factory mounts the transmitter and adjusts the zero and

span for the travel specified on the order. Make field wiring connections as described in the electrical connections

procedure and fine tune the transmitter to the application. Refer to the appropriate actuator and valve instruction

manuals to install the attached assemblies.

If the transmitter has been ordered separately, or removed for maintenance, perform the appropriate portion of the

Mechanical Connections, Electrical Connections, Potentiometer Alignment, and Calibration procedures.

The transmitter can be mounted in any of four positions. Mount the transmitter vertically or horizontally depending on

the application requirements. Refer to figures 15 through 23 for examples of typical actuator mounting assemblies.

As an aid to installation, and to understand the transmitter design in general, refer to figure 2 to see the location of the

transmitter compartment and the field wiring compartment. The transmitter compartment contains the transmitter

and/or the position switch circuit on the printed wiring board, associated wiring assemblies, adjustment

potentiometers, and the potentiometer that senses position. Remove the cover on the transmitter compartment to

gain access to this compartment. Note that you will need to loosen the set screw (key 106) before removing the cover.

The transmitter compartment is adjacent to the symbol on the housing.

Except for a 4211 or 4221 transmitter, the field wiring compartment contains a printed wiring board with the terminal

blocks (figure 4) for connecting field wiring and associated cable assemblies. It also contains the position switch relays

which are mounted on the printed wiring board. Remove the cap adjacent to the + and - symbols on the housing to

access this compartment. Note that you will need to loosen the set screw (key 106) before removing the cover.

For a 4211 or 4221 transmitter without position switch circuits, the field wiring compartment contains a barrier strip

for installation of the transmitter field wiring (figure 4).

Figure 2 shows the location of the ports into the field wiring compartment. Two ports are available for routing the

transmitter and/or position switch wiring into the transmitter housing. After transmitter installation, install a plug in

the unused port. When installing the transmitter, allow sufficient space for removing the covers to perform

maintenance and to make the wiring connections. Figure 2 also shows the basic transmitter outline dimensions.

Hazardous Area Classifications and Special Instructions for “Safe Use” and

Installations in Hazardous Locations

Refer to the following instruction manual supplements for approval information.

D CSA Hazardous Area Approvals - Fisher 4200 Electronic Position Transmitters (D104308X012)

D FM Hazardous Area Approvals - Fisher 4200 Electronic Position Transmitters (D104309X012)

Instruction Manual

D200354X012

4200 Transmitters

September 2022

D ATEX Hazardous Area Approvals - Fisher 4200 Electronic Position Transmitters (D104310X012)

D IECEx Hazardous Area Approvals - Fisher 4200 Electronic Position Transmitters (D104311X012)

All documents are available from your Emerson sales office or at www.Fisher.com. Contact your Emerson sales office

for all other approval/certification information.

Mechanical Connections

Sliding‐Stem Actuator Mounting; 4210, 4211, 4212, and 4215 Transmitters

Use the following general procedures and figures 15, 16, 17, and 18 to mount the transmitter on sliding‐stem

actuators, standard stroke up to 105 mm (4.125 inches) travel.

Refer to figure 15 for key number locations for this example.

1. Install the transmitter on the mounting plate (key 21) with two cap screws (key 32).

2. Bolt the stem mounting bracket and spacer (keys 34 and 39) to the stem connector on the actuator stem. Replace

the stem connector cap screws with the two cap screws (key 35) furnished with the stem mounting bracket.

3. If necessary, refer to the appropriate procedures in the actuator instruction manual to reconnect the actuator stem

to the valve stem.

4. Fasten the stem bracket (key 33) to the stem mounting bracket (key 34) with two cap screws (key 37) centered in

the slots of the stem bracket. Tighten the cap screws slightly.

5. On the transmitter, install the pickup pin into the lever assembly (key 30) in the position to match the application.

Refer to table 3 and figure 15.

6. Temporarily connect the 24 volt DC power supply to the instrument as indicated in figure 4.

7. Perform the potentiometer alignment procedures before mounting the transmitter on the actuator. To simulate

mid‐stroke position in step 4 of the procedure, move the lever assembly (key 30) until its center line is parallel with

the center line of the operating arm (key 25). After completing step 9 of the potentiometer alignment procedure,

remove the 24 volts DC, and continue the actuator mounting procedure as described in the following steps.

8. Stroke the actuator to the mid position of the valve travel.

9. Fit the pickup pin, located in the lever assembly (key 30), into the horizontal slot in the stem bracket (key 33). Bolt

the mounting plate (key 21) to the actuator with cap screws, washers, and spacers (keys 23, 24, and 22) using the

two tapped holes in the side of the actuator yoke.

10. Use the mounting plate slots, which allow the lever assembly (key 30) and the operating arm (key 25) to be nearly

parallel, and position the long edge of the mounting plate parallel with the actuator stem. Tighten the bolts

securely.

11. Loosen the two cap screws (key 37) connecting the stem bracket (key 33) to the stem mounting bracket (key 34).

Manually move the lever assembly (key 30) until its center line is parallel with the center line of the operating arm

(key 25).

12. Tighten the two cap screws (key 37) in the slotted holes.

13. Stroke the actuator to ensure that full travel is allowed.

14. Perform the electrical connection and direct and reverse action procedures.

15. Verify potentiometer alignment by performing the potentiometer alignment procedure.

Instruction Manual

D200354X012

4200 Transmitters

September 2022

Rotary‐Shaft Actuator Mounting; 4210, 4211, 4212, and 4215 Transmitters

Use the following general procedures and figures 19, 20, and 21 to mount the transmitter on rotary‐shaft actuators.

Refer to figure 19 for key number locations for this example.

1. Install the transmitter on the mounting plate (key 21) with two cap screws (key 32). The transmitter can be

mounted in any of four positions on the bracket. Tighten the cap screws slightly.

2. On the actuator, attach the coupler plate assembly (key 57) and travel indicator to the actuator shaft. This is

accomplished by removing two self‐tapping screws and travel indicator and replacing them with the self‐tapping

screws and coupler plate assembly furnished with the transmitter for the mounting application.

3. Install the mounting plate (key 21) on the actuator using the four cap screws and washers (keys 23 and 24). The

transmitter and bracket can be mounted in any of four positions by using the cap screws (key 23) on the face of the

actuator hub.

4. Tighten the cap screws (key 23) slightly while aligning the potentiometer shaft on the transmitter with the coupler

plate assembly pin (key 57). When aligned, tighten the four cap screws (key 23). Maintain this alignment while

tightening the two cap screws (key 32) holding the transmitter to the mounting plate (key 21).

5. Slide the coupler (key 52) over the potentiometer shaft and into the hole in the mounting plate (key 21). Slide the

coupling (key 54) onto the plate assembly pin and attach the coupling to the plate assembly pin using the set screw.

6. Slide the coupler (key 52) into the coupling (key 54). The coupling should not be deflected in any direction when

installed. Do not tighten the coupling set screw (key 53) as it will be tightened during the potentiometer alignment

procedure.

7. Perform the electrical connections and potentiometer alignment procedures.

Long‐Stroke Sliding‐Stem Fisher 585C and 470‐16 Actuator Mounting; 4220, 4221, and 4222

Transmitters

Use the following general procedures and figure 22 to mount the transmitter on long‐stroke sliding‐stem 585C and

470‐16 actuators with 105 to 206 mm (4.125 to 8.125 inches) travel.

NOTICE

To avoid damaging the potentiometer after the transmitter is mounted, do not stroke the actuator without first loosening

the socket screw set (key 100F) that fastens the coupling (key 100E) to the potentiometer shaft (key 5).

1. Stroke the actuator to mid‐stroke.

2. Bolt the cable bracket (key 60) to the stem connector on the actuator stem. To do this, first replace the existing

stem connector cap screws with studs (key 78). Slide the cable bracket (key 60) over the studs (key 78) before

installing the nuts (key 71). Tighten the nuts (key 71).

3. If necessary, refer to the appropriate actuator instruction manual for the procedure to reconnect the actuator stem

to the valve stem.

4. Attach the cable transducer housing (key 100A) to the mounting plate (key 63) using cap screws (key 103) and hex

nuts (key 104).

5. Attach the mounting plate (key 63) to the actuator using hex head cap screws (key 32). Note: Some actuators may

require spacers (key 101) between the mounting plate (key 63) and the actuator.

NOTICE

Free release of the cable (key 100B) will damage the transducer. Whenever the cable (key 100B) is extended, take steps to

ensure that free release does not happen.

Instruction Manual

D200354X012

4200 Transmitters

September 2022

6. Carefully pull the cable (key 100B) down to the cable bracket (key 60) and attach it with the socket head cap screw

(key 102), the lock washer (key 83) and the nut (key 72).

7. Remove the four cap screws (key 100D) and the mounting plate (key 100C) from the cable transducer.

8. Mount the mounting plate (key 100C) to the transmitter using cap screws (key 105).

9. Verify that the actuator is still in the mid‐stroke position. Loosen the socket cap screws (key 100F) and rotate the

coupling until the socket cap screws (key 100F) can be accessed with a hex wrench through one of the openings in

the cable transducer housing (key 100A). Lock the coupling in place by tightening the inboard socket cap screw

(key 100F).

10. Turn the potentiometer shaft (key 5) to the midpoint of its range.

11. Carefully install the transmitter to the cable transducer housing (key 100A) making sure that the potentiometer

shaft (key 5) slides freely into the coupling (key 100E) and remains in the midpoint position. Reinstall the four cap

screws (key 100D).

12. Lock the coupling (key 100E) to the potentiometer shaft (key 5) by tightening the outer socket cap screw

(key 100F).

13. Install the cable cover assembly (key 64) on to the mounting plate (key 63) with the two machine screws (key 81).

Attach the lower end of the cable cover assembly (key 64) to the actuator yoke with the cap screw (key 82). Note:

Some actuators may require additional pieces to fully cover the yoke.

14. Perform the electrical connections.

Long‐Stroke Sliding‐Stem Fisher 585CLS and 490 Actuator Mounting; 4220, 4221, and 4222

Transmitters

Use the following general procedures and figure 23 to mount the transmitter on long‐stroke sliding‐stem 585CLS and

491 actuators with 229 to 610 mm (9 to 24 inches) travel.

NOTICE

To avoid damaging the potentiometer after the transmitter is mounted, do not stroke the actuator without first loosening

the socket screw set (key 100F) that fastens the coupling (key 100E) to the potentiometer shaft (key 5).

1. Stroke the actuator to mid‐stroke.

2. Bolt the cable clip (key 61) to the stem connector on the actuator stem. To do this, first replace the existing stem

connector cap screws with a stud (key 35). Slide the cable clip (key 61) over the stud (key 35) before installing the

nuts (key 73). Tighten the nuts.

3. If necessary, refer to the appropriate actuator instruction manual for the procedure to reconnect the actuator stem

to the valve stem.

4. Attach the cable transducer housing (key 100A) to the mounting plate (key 63) using cap screws (key 103) and hex

nuts (key 104).

5. Attach the mounting plate to the actuator using hex head cap screws (key 75). Note: Some actuators may require

spacers (key 101) between the mounting plate (key 63) and the actuator.

NOTICE

Free release of the cable (key 100B) will damage the transducer. Whenever the cable (key 100B) is extended, take steps to

ensure that free release does not happen.

Instruction Manual

D200354X012

4200 Transmitters

September 2022

6. Carefully pull the cable (key 100B) down to the cable clip (key 61) and attach it with the socket head cap screw

(key 102), the lock washer (key 83) and the nut (key 72).

7. Remove the four cap screws (key 100D) and the mounting plate (key 100C) from the cable transducer.

8. Mount the mounting plate (key 100C) to the transmitter using cap screws (key 105).

9. Verify that the actuator is still in the mid‐stroke position. Loosen the socket cap screws (key 100F) and rotate the

coupling until the socket cap screws (key 100F) can be accessed with a hex wrench through one of the openings in

the cable transducer housing (key 100A). Lock the coupling in place by tightening the inboard socket cap screw

(key 100F).

10. Turn the potentiometer shaft (key 5) to the midpoint of its range.

11. Carefully install the transmitter to the cable transducer housing (key 100A) making sure that the potentiometer

shaft (key 5) slides freely into the coupling (key 100E) and remains in the midpoint position. Reinstall the four cap

screws (key 100D).

12. Lock the coupling (key 100E) to the potentiometer shaft (key 5) by tightening the outer socket cap screw

(key 100F).

13. Install the lower yoke cover (key 69) on to actuator yoke with pan head machine screws (key 77) and washers

(key 86).

14. Perform the electrical connections.

Electrical Connections

WARNING

Select wiring and/or cable glands that are rated for the environment of use (such as hazardous area, ingress protection and

temperature). Failure to use properly rated wiring and/or cable glands can result in personal injury or property damage

from fire or explosion.

Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval.

Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or

explosion.

Note

For North American intrinsically safe installations, refer to the loop schematics included in the appropriate Hazardous Area

Approval Supplement (CSA, D104308X012 or FM, D104309X012) or to instructions supplied by the barrier manufacturer for

proper wiring and installation. For all other applications install the product per local, regional, or national code, rules, and

regulations.

Conduit

Install conduit using local and national electrical codes which apply to the application.

Field Wiring

Figure 4 shows typical field wiring connections into the field wiring compartment. The transmitter is powered by 24

volts DC. Refer to table 1 to determine the power supply requirements. For units without position switches, the 24

volts DC can be provided by the receiving device or an external supply.

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