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Issue/Rev. 0.0 (5/19) ║ MNIN003 • Page 5

Installation / Operation Manual 

 

 

 

Introduction

The 4728 S & W Monitor used in conjunction with a Model 4528 Detector Card and Model 

CX-645 Probe, provides continuous on-line monitoring of percent water in crude oil.

The monitoring system measures changes in the product stream capacitance. The di-

electric constant (Dk) (a key factor in capacitance measurement) of the product stream 

changes dramatically as water content varies. The change in capacitance is accurately 

measured and correlated to percent water by calibration against “shake out” data.

The Model 4728 displays the percent water on a digital indicator and indicator status 

lights continuously display the conditions measured by the system. Alarm relays and 

a 4-20 mA output can be used to connect the system to other supervisory or control 

elements.

Specifications

Input Power

 

115 VAC +/- 15%, 50/60 Hz, 2 watts 

220 VAC (Optional) 

14-28 Volts DC @ 130 mA

S&W Range

 

0-5%, 0-10%, or 0-20%

S&W Alarm Setpoint

 

0-100% of S&W Range

Input Signal

 

0-5V DC from 4528 Detector

Indicators

 

S&W / Setpoint LCD 

Merchantable Oil LED, -Green 

Excess S&W LED, -Red 

Bypassing Oil LED, -Yellow

Outputs

 

4-20 mA analog

Relays

 

SPDT Relay, 10 Amp 250 VAC 

1/2 Hp 250 VAC, 13A 120 VAC resistive 

1/3 Hp 120 VAC, 10 A 30V DC resistive

Time Delay

 

0-90 seconds adjustable in 10 second steps. 

Off delay approximately 10% of on delay time.

Temperature Range

 

-20°F to 160°F (-29°C to 71°C)

Enclosure

 

NEMA 4X, Fiberglass, water resistant 

NEMA 7, Explosion Proof

Description

Part Number

Model 4728 Monitor/WP Housing

81001114

Model 4728 Monitor/EXP Housing

81001115

Model 4528 Detector

81001164

Содержание 4528

Страница 1: ...Water Cut Monitor Bulletin MNIN003 Issue Rev 0 0 5 19 Installation Operation Manual 4528 Detector CX 645 Probe CSA Approved 4728 Monitor MANUAL ...

Страница 2: ...ation Supervision Start Up and Commissioning Services Available Customer Support Contact Information Customer Service TechnipFMC FMC Technologies Measurement Solutions Inc 1602 Wagner Avenue Erie Pennsylvania 16510 USA P 1 814 898 5000 F 1 814 899 8927 measurement solutions TechnipFMC com TechnipFMC com Literature Library http info smithmeter com literature online_index html ...

Страница 3: ... 10 External Powered 10 Typical Applications 12 Typical Tank Flow Diagram 13 Detector Calibration 4528 0 5 VDE Output 14 Detector Calibration 4528 X A with 4 20mA Module Mounted Piggy Back on Detector Card 15 Detector Information Type B and C 17 Installation Hints 17 Troubleshooting 18 Recommended Spare Parts 18 4728 with Explosion proof Enclosure Dimensional Drawing 19 4728 with Weather proof Enc...

Страница 4: ...Page 4 MNIN003 Issue Rev 0 0 5 19 Page intentionally left blank ...

Страница 5: ...easured by the system Alarm relays and a 4 20 mA output can be used to connect the system to other supervisory or control elements Specifications Input Power 115 VAC 15 50 60 Hz 2 watts 220 VAC Optional 14 28 Volts DC 130 mA S W Range 0 5 0 10 or 0 20 S W Alarm Setpoint 0 100 of S W Range Input Signal 0 5V DC from 4528 Detector Indicators S W Setpoint LCD Merchantable Oil LED Green Excess S W LED ...

Страница 6: ...30 sec on 3 sec off Analog Output The analog output is 4 20 milliamperes corresponding to 0 5 0 10 0 20 depending on unit range The 4 20 mA output function is accomplished by the use of a precision integrated circuit The 4 mA point may be adjusted slightly with the zero control on the Model 4728 The 20 mA point is factory preset The Model 4728 utilizes a loop switch to determine whether the 4 20 m...

Страница 7: ...1 which is located at the lower right of the P C card The position of this switch determines whether the 4 20 mA output is to be internally powered from the 4728 or externally powered from an outside source Care must be taken to be sure this switch is in its proper position BEFORE an external 4 20 mA loop power source is connected Failure to have the switch in the proper position may cause compone...

Страница 8: ... can be accomplished by removing the three screws marked A in the above draw ing and gently lifting the top plate off of the printed circuit board Find the short white or red wire with the clip on it and gently pull the wire straight up Remove the nut from screw B Insert the printed circuit board into the condulet Position the board so the rod sticking up from the probe goes into the round hole on...

Страница 9: ...ng the three screws marked A on the drawing Wiring Diagram Note Spade Lugs are not used on CSA Approved Model 4728 Note Typical Interconnecting cable between Detector and Readout Maximum recommended length is 300 feet Installation Operation Manual ...

Страница 10: ...al 4 20 mA Loop Warning Loop Switch MUST be up in external position BEFORE connecting external power on 4728 with bottom terminal strip Loop Switch MUST be up before connecting external power on CSA Approved Model 4728 with the two sides and bottom terminal strips ...

Страница 11: ... capacitance Nominal Pipe Size Catalog Model Number Stock Number 2 3 4 6 CX 645 200 BGP CX 645 300 BGP CX 645 400 BGP CX 645 600 BGP 81001190 81001195 81001200 81001205 2 3 4 6 CX 645 200 BFP CX 645 300 BFP CX 645 400 BFP CX 645 600 BFP 81001191 81001196 81001201 81001206 2 3 4 6 CX 645 230 BGP CX 645 330 BGP CX 645 430 BGP CX 645 630 BGP 81001192 81001197 81001202 81001207 2 3 4 6 CX 645 260 BGP ...

Страница 12: ...he process Percent Water Recording In this application the Indicating Unit provides local reading on an indicating meter and provides an analog output signal to a standard recorder In place of the recorder this output could be connected to a meter computer input or any other DC input device Percent Water Indication and Set Point Control In this application the adjustable alarm may be used to opera...

Страница 13: ...Issue Rev 0 0 5 19 MNIN003 Page 13 Installation Operation Manual Typical Tank Flow Diagram ...

Страница 14: ... pot is turned 4 Turn the fine zero back counter clockwise CCW approximately 10 turns 5 Turn the coarse zero pot marked ZERO C 25 turns full counter clockwise Listen for clicks 6 Turn the coarse zero CW until the reading is at or near the grindout value Do not tune through zero Always approach the grindout value from the CW direction 7 Next turn the fine zero to get complete agreement of the displ...

Страница 15: ...imately 10 turns 9 Turn the coarse zero pot marked ZERO C 25 turns full counter clockwise Listen for clicks 10 Turn the coarse zero CW until the volt meter reads 0 00 to 0 05 Do not turn pot past point where numbers stop getting smaller 11 Next turn the fine zero to get as small a reading possible on volt meter 12 Move Probe Ref switch to Ref position 13 Adjust output span control to make volt met...

Страница 16: ... supply a 4 20 mA signal direct to an external readout device It is not designed to be used with a Model 4728 Readout Unit 3 Maximum Loop Resistance is 250 ohms 4 Shielded twisted pair wire is recommended for the 4 20 mA output Ground the shield at one end of the wire only preferably at the Readoutʼ end 5 Starting in mid year 2000 the 4 mA pot adjusting screw will be accessible through a hole just...

Страница 17: ...roximately 2 below zero Open Probe Chassis Pickup wire is not connected to the probe Shorted Probe Occurs when electrical short exists in the probe Installation Hints Always install probe up stream of dump valve anytime probe is mounted on oil line coming off treater separator etc Never install downstream as gas will break out to some degree as oil goes from vessel pressure to lower line pressure ...

Страница 18: ...I gravity oils reading high est A digital volt meter set on low DC volts range should read less than 25 volts A reading of any voltage indicates the probe insulators are becoming contaminated and should be changed Normally a monitor will operate in a normal manner up to 25 volts but then the readings will become erratic Solution to problem is elimination of coating buildup causes or periodic clean...

Страница 19: ...Issue Rev 0 0 5 19 MNIN003 Page 19 Installation Operation Manual 4728 with Explosion proof Enclosure Dimensional Drawing ...

Страница 20: ...Page 20 MNIN003 Issue Rev 0 0 5 19 Installation Operation Manual 4728 with Weather proof Enclosure Dimensional Drawing ...

Страница 21: ...Issue Rev 0 0 5 19 MNIN003 Page 21 Installation Operation Manual CX 645 Probe Dimensional Drawing ...

Страница 22: ...ny P 49 4101 304 0 The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect Otherwise the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect Contact Information Field Service Response Center 24 ...

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