HDI 2200 Manuale utente

HDI 2200 Position Indicator Gauge

User’s Manual Rev3

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

TABLE OF CONTENTS

SECTION 1 Systems General Information:

1.1 General Information:

1.2 Unpacking and Inspection:

1.3 Precautionary Information:

1.4 Personnel Qualifications:

SECTION 2 System Description:

2.1 System Description General:

2.2 System Components:

2.2.1 Position Indicator:

2.2.2 Position Sensors:

2.2.3 Cables

2.3 System Capacities:

2.3.1 Position Indicators:

2.4 System Options

2.4.1. Remote Display:

2.4.2. 4/20 mA Output:

2.4.3 0-1VDC Output:

SECTION 3 Installation:

3.1 Components Location:

3.1.1 Console and Sensors:

3.1.2 Cables:

3.2 Mounting Hardware

3.3 Potentiometer Assembly & Installation

3.3.1. General Assembly

3.3.2. Display Installation

3.3.3. Cables

3.4 4-20mA Potentiometer Installation

SECTION 4 Theory of Operation:

4.1 Position Systems:

SECTION 5 Calibration:

5.1 Position Systems:

SECTION 6 Corrective Maintenance:

6.1 Position Systems:

6.2 Position Systems Battery Replacement:

6.3 Adjustment Preparation

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 7 Preventative Maintenance

7.1 Choke Systems:

SECTION 8 Certification

8.1 Markings

8.2 Reports

SECTION 9 Warranty

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 1 Systems General Information:

1.1 General Information:

This manual describes the installation operation and maintenance of the HDI #2200 Position

Indicating System. This manual shall provide the user with information necessary to properly utilize

the Position Indicating System. Included in this manual are all the necessary procedures to install

and maintain this Position Indicating System Instrumentation properly.

1.2 Unpacking and Inspection:

Upon receipt of the equipment, assure all items are accounted for on the packing list. If any items

are missing, immediately inform the freight forwarder. Inspect all items for damage. If any items

are damaged immediately inform the freight forwarder and Houston Digital Instruments, Inc.

1.3 Precautionary Information:

Assure all directions on the packages are followed during unpacking and handling. Please note:

if the return spring is preinstalled on the linear shaft, Do Not compress the spring and let the spring

to freely extend. There is enough force when compressed that the linear shaft can be pulled from

the internal body. If damaged, the linear potentiometer must be replaced. The unit is an oil-filled

sealed unit.

1.4 Personnel Qualifications:

This equipment requires experienced personnel to handle, install and maintain. HDI offers a

technical training school on their premises if the Customer desires.

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 2 Systems Description:

2.1 Systems Description:

The HDI 2200 System is an Electronic Position Indicating System. The system consists of three

(3) primary components as detailed in Section 2.2. An electronic potentiometer is housed in a

stainless steel housing based on your specific choke body. The assembly is adjustable inside the

housing to assure the sensor is located properly. The housing(s) are constructed to adapt to a

variety of choke(s): Shaffer/NOV, Cameron, Swaco, Control Flow, Cortec and others as required.

The display is a liquid crystal display (LCD), which includes both a three digit numerical display

(for accuracy) and a bar-graph (101 segments) representation (for trend).The electronic bar graph

display indicates choke position from closed to open, 0 - 100 percent and in 1/8 graduations.

Dependent on choke body, your LCD may be configured to be shown as percent (%) Closed versus

the traditional percent (%) Open.

2.2 System Components:

2.2.1 Position Indicators:

Two (2) Position Indicators with numeric and Bar Graph displays are used for dual applications for

respective Left / Right Choke or Choke / Kill identification; otherwise, a single display system is

used for Single Choke applications.

2.2.2 Position Sensors:

As noted above, HDI has designed several different sensor housings to be compatible to various

choke styles to reduce onsite customization and to simplify installation after removing the existing

pneaumatic sensors. General dimensional drawings or photos are available upon request.

2.2.3 Cables:

All interconnecting cables supplied by HDI or can be adapted to use junction box for open

termination.

2.3 System Capacities:

2.3.1 Position Indicators:

Choke Position Indicators are rated for 0 to 100 percent or in one-eighth graduations and will be

respective of your choke body orientation for Open or Close .

2.4 System Options:

Custom designed systems will include, per the customers' request or customers' specifications,

certain options required to meet offshore area classifications or specific customer requirements.

Each system of this type will be designed to meet specific requirements or classifications and is

therefore unique and as such goes beyond the scope of this publication. Barriers or explosion

proof junction boxes are not required as the system has been certified intrinsically safe by the

Canadian Standards Association (CSA). The following are common examples that may be

encountered or requested by customers. HDI offers the following options at additional cost.

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

2.4.1. Remote Display:

Remote displays may be provided to allow secondary indicators at an alternate location at the

customer’s request.

2.4.2 4/20 mA Output:

HDI offers as an option, a signal current loop providing a 4/20 mA remote output that may be used

for chart recorder inputs and/or datalogging.

2.4.3 0-1VDC Output:

HDI offers as an option, a signal providing a 0-1Vdc remote output that may be used by the

customer for chart recorder inputs and/or datalogging. This is a factory installed option and does

not require calibration.

2.4.4 ATEX Compliance

HDI offers as an option, to have units third party inspection by DNV for ATEX Compliance. This is

done on special requests and lead times may vary dependent on DNV availability and HDI’s current

delivery schedule. Copy of the ATEX Certificate showing the approved classification and marking

is available upon request.

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 3 Installation:

3.1 Components Location:

3.1.1 Control Head and Sensors:

The Control Head and Sensors are to be mounted by the Customer at the locations deemed most

suitable for such equipment. The system transducer (POTENTIOMETER) comes from the factory

as a complete assembly and only requires mounting of the transducer housing using standard

practices for such installations.

3.1.2 Cables:

All wire lengths from the Panel to the sensors shall be supplied by the customer. Prefabricated

cables from HDI typically have the 3 Pin Male / 3 Socket Female connectors for quick installation.

3.2 Mounting Hardware:

Sensor integration to the choke bodies will generally use the existing bolts from the pneumatic

sensors once removed, while the HDI sensors will be complete with all necessary hardware or

adaptive stems as required for Swaco Rotary Sensors. Custom fit ups are available as option by

HDI.

3.3 Position Sensor Assembly and Standard Installation:

3.3.1 Assembly General:

The Position Potentiometer and mounting brackets are provided to replace an existing pneumatic

regulator choke position system presently in use.

This assembly is designed to mount in the original choke position enclosure utilizing the existing

hole patterns and mounting hardware. Remove the existing choke position assembly. Install the

new stainless steel housing and potentiometer assembly with mounting brackets with the existing

mounting hardware.

Standard Linear Potentiometer,

Loosen the potentiometer brass mounting brackets to allow for adjustment. With the choke body

in the fully closed position, adjust the cylinder potentiometer assembly to allow 1/8” to 1/4"

compression of the shaft into the potentiometer housing and tighten the bolts on the brass

mounting brackets. Observe the choke bodies and sensor while you Open the Chokes to assure

the potentiometer does not bottom out inside the cylinder housing. Once you confirmed there is

no issues, you may proceed to Calibration, see Section 5.

Rotary potentiometer:

HDI provides an adaptive shaft (for Swaco) that must be threaded into the existing choke shaft via

the adjustment stud. As part of the initial set up for a rotary sensor, the potentiometer is marked

with the active span for proper installation and orientation. Orientation to Clockwise and

counterclock-wise operation is critical to avoid crossing into the dead span of the potentiometer,

which will cause a spike or erratic reading on your LCD. Once you believe you have orientated

the Rotary potentiometer to match Clockwise and Counterclock-wise orientation, gently tighten the

set screw on the brass mounting block to secure the potentiometer assembly from rotating during

operation.

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

3.3.2. Position Display:

The system gauge is designed to be installed in a 7.25” x 4.25” cut-out hole in the panel. Mounting

dimensional drawing is located in the rear of this manual under Appendix. Remove the ¼” elastic

stopnuts from the ¼-20 screws, drop the gauge in the appropriate hole and replace the stopnuts.

As part of our deliverables, HDI provides and rubber gasket that allows the LCD display to be

dropped in from the front of the panel face or can be inserted from the back side based on your

preference and serviceability.

3.3.3. Cables

The system comes complete with wire and connectors made to the customer’s specifications.

Simply route the wire from the transducer to the gauge using standard practices, connect the

cables to the transducer and gauge, and tighten the collars.

3.4 Non Certified 4-20 mA Position Sensor Assembly Installation:

HDI offers our sensor configurations with a Slidewire Potentiometer 4-20mA converter allowing

our clients to directly interface with a Data Acquistion or PLC system. This configuration is

installed in the same manner as previously addressed in this manual. The sensor housing will

have a small junction box mounted to the housing or may be mounted near by per a client’s

request. Depending on your request, the jbox may have open ended cables for direct

termination or interface connectors may be configured for plug and play approach.

The converter is a SEM210X, an ATEX cerfitied component that requires an external resistor

across terminals 3 & 5 (484.5 ohm) which has already been preinstalled and a spare is included

with your shipment so when servicing the unit, you have a spare. As with a 4-20mA signal, the

unit requires 24vdc to complete the current loop. Please note, the SEM210 is calibrated via full

2k resistance travel and is not adjustable. Your PLC system should allow you to set the

respective high side of the SEM210 output to your high side reference and complete the display

span of 0-100%.

Wiring layout is included in the Appendix of this manual. You may skip Section 4 and 5 and

reviewing System Maintenance. *Although SEM210X is a certified ATEX component, the

overall Assembly of the 4-20 mA is not certified.

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 4 Theory of Operation:

4.1 Positioning Systems:

The major components of this system consist of the Control Head, Sensor, and interconnect Cable.

The LCD (Control head) has an internal Power Source, a 3.6 potted (replaceable) Battery Pack

that supplies power to the LCD via the power cable. The Control Head then supplies the excitation

to the Sensor. The Sensor is typically a 2 or 5K potentiometer that measures its own extension

and compression. This information is returned to the Control Head in which it then converts the

voltage to digital information which is used to drive the 101 segment Bar Graph display with one-

eighth division Bar Graph. The Position Indicator does not require any warm up period. Turning

the system off when not in use will greatly extend battery life

(Power OFF by pressing the Mode Select Button and then pressing the Power Button.)

The Position Indicator contains these operator initiated functions:

Mode Select Button

Selects calibration and

power on/off Modes.

UP ARROW

100% Calibration Select Button

Allows for calibration at

open position.

DOWN ARROW

0% Calibration Select Button

Allows for calibration at

closed position.

Enter Select Button

Enters Mode and

Calibration Selections

Power ON/OFF

Power on/off switch.

Power ON: Press Power button once (Unit performs self-test, all display segments turn on)

Power OFF: Press MODE button once (the RUN indicator should TURN OFF) then press the

POWER button with-in .5 sec. NOTE: (if the RUN indicator does not

TURN OFF, press the MODE button again)

HDI 2200 Position Indicator

User’s Manual – 2200, Rev 3 | JAN 2020

SECTION 5 CALIBRATION:

5.1 Position System:

THIS DEVICE IS CALIBRATED FROM THE POSITION INDICATOR (Display Panel)

(SEE Section 4)

5.1.1 Setting Closed Position Level

1. Once the installation is complete the choke should be closed completely.

2. Apply power to device by pressing the POWER button.

3. Position Indicator will perform self test for approximately 5 seconds during which time

all LCD displays will be active.

4. After self test, the display will be in the run/active mode. ( RUN indicator will appear at

the lower left side of the LCD display)

5. With Choke completely CLOSED, press the MODE button. (RUN indicator will turn

OFF)

6. Press Down button within 2 secs. (Now in calibration mode)

7. The down arrow and a four digit number will appear at the top of the LCD display.

8. Press the Enter button. (Accepts the low / closed set point position, unit returns to RUN

mode)

9. The closed position level is now set, and the three digit display should read 000.0

5.1.2 Setting Open Position Level

1. Open the Choke completely.

2. With Choke completely open press MODE button. (RUN indicator will turn OFF)

3. Press UP button within 2 secs. (Now in calibration mode)

4. the up arrow and a four digit number will appear at the top of the LCD display.

5. Press the Enter button. (Accepts the low / closed set point position, unit returns to RUN

mode)

6. The closed position level is now set, and the three digit display should read 100.0

7. Unit is now fully calibrated.

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