Aplus Finetek Sensor, Inc.

ISO-9001:2000 certified

SC35 Series Vibrating Fork Point Level Sensor

More than just another level measurement company ….

PRODUCT INTRODUCTION

FEATURESOPERATING PRINCIPLEThe SC35 series is a vibrating tuning fork point level sensor utilizing piezoelectric crystal and solidstate electronics technologies to produce vibration in the tuning fork element at a specific frequency and receive electronic feedback. When the probe element is covered or in contact with the target material the vibration is dampened, the electronic feedback changes and presence of the material is thereby sensed by the electronics, which changes the state of the sensor output to indicate material presence. When the probe element is again free of the target material the vibration again is produced, the output state reverts to indicate material absence.

1

The SC35 series vibrating fork point level sensor is ideal for most dry freely flowing powder and granular bulk solid materials and is especially suited for very lightweight materials that have bulk densities below

33lbs/ft where other brands may not work properly. Applications exist within virtually any industry including the following: Ÿ Plastic ProcessingŸ Food & IngredientsŸ PharmaceuticalŸ Specialty ChemicalŸ Wood ProcessingŸ Foam and Fiber ProductionŸ Grain ProcessingŸ Many Others

INDUSTRY USE AND APPLICATIONS

Ÿ Universal power supply 19-253VAC/VDCŸ Unique self-diagnostics detects material build-upŸ Ideal for very lightweight materials (³0.624lbs/ft +)Ÿ Compact enclosure (only 3.3” diameter)Ÿ No calibration required, easy to setup and useŸ Standard, high temperature, pipe extended and

cable extended versions availableŸ Liquid/solids interface is possibleŸ Dust explosionproof available

3

STRUCTURE FOR STANDARD PROBE (TYPE A)

Vibrating ForkProcess Connection Housing

2

TYPES & SPECIFICATIONS

SC350

19~253Vac/Vdc, 50/60Hz

Max. 1.5W

Max = FSH, Min = FSL

Type A: Standard

Power – Green, Signal – Yellow, Alarm – Red

Standard (material covered = 0.5s; uncovered 1.5-2.0s) or Delay 5s

140Hz

Two (2) ½” NPT

NEMA 4X / IP66 / IP67

362psi (25bar)

304SS/316SS/316LSS

-40⁰F~302⁰F (-40⁰C~150⁰C)

-40⁰F~185⁰F (-40⁰C~85⁰C)

Inch(mm)

Two Relay Output SPDT, 6A @ 250Vac/28Vdc Two Transistor Output, 400mA @ 60Vac/Vdc

Diecast Aluminum (powder coated)

30.624lbs/ft (10g/l)

Process temp.

Order no.

Ambient temp.

Pressure

Fork material

Supply voltage

Power consumption

Fail safe mode

Type

Dimensions

Output

Vibrating frequency

Conduit entrance

Protection

Housing material

Delay time

Indicators

Minimum density

SC350

Type B: High Temperature Standard

-40⁰F~446⁰F (-40⁰C~230⁰C)-40⁰F~536⁰F (-40⁰C~280⁰C)

Inch(mm)

1-1/2"NPT

1/2"NPT

8.86"(225)

0.63"(16)

6.10"(155)

f1.65"(42)

1.34"(34)

f3.30"(84)

4.76"(121)

1-1/2"NPT

1/2"NPT

f3.30"(84)

0.63"(16)

8.86"(225)

6.10"(155)

f1.65"(42)

1.34"(34)

3

TYPES & SPECIFICATIONS

SC351

19~253Vac/Vdc, 50/60Hz

Max. 1.5W

Max = FSH, Min = FSL

Type C: Pipe Extended

Power – Green, Signal – Yellow, Alarm – Red

Standard (material covered = 0.5s; uncovered 1.5-2.0s) or Delay 5s

140Hz

Two (2) ½” NPT

NEMA 4X / IP66 / IP67

362psi (25bar)

304SS/316SS/316LSS

-40⁰F~302⁰F (-40⁰C~150⁰C)

-40⁰F~185⁰F (-40⁰C~85⁰C)

Inch(mm)

Two Relay Output SPDT, 6A @ 250Vac/28Vdc Two Transistor Output, 400mA @ 60Vac/Vdc

0.624lbs/ft (10g/l)3

Process temp.

Order no.

Ambient temp.

Pressure

Fork material

Supply voltage

Power consumption

Fail safe mode

Type

Dimensions

Output

Vibrating frequency

Conduit entrance

Protection

Housing material

Delay time

Indicators

Minimum density

Inch(mm)

SC351

Type D: High Temperature Pipe Extended

-40⁰F~446⁰F (-40⁰C~230⁰C)-40⁰F~536⁰F (-40⁰C~280⁰C)

Diecast Aluminum (powder coated)

1-1/2"NPT

1/2"NPT

8.86~157.5"(225~4000)

0.63"(16)

6.10"(155)

f1.65"(42)

1.34"(34)

f3.30"(84)

4.76"(121)1-1/2"NPT

1/2"NPT

8.86~157.5"(225~4000)

0.63"(16)

6.10"(155)

f1.65"(42)

1.34"(34)

f3.30"(84)

4

TYPES & SPECIFICATIONS

19~253Vac/Vdc, 50/60Hz

Max. 1.5W

Max = FSH, Min = FSL

Power – Green, Signal – Yellow, Alarm – Red

Standard (material covered = 0.5s; uncovered 1.5-2.0s) or Delay 5s

140Hz

Two (2) ½” NPT

NEMA 4X / IP66 / IP67

29psi (2bar)

304SS/316SS/316LSS

-40⁰F~176⁰F (-40⁰C~80⁰C)

-40⁰F~185⁰F (-40⁰C~85⁰C)

Two Relay Output SPDT, 6A @ 250Vac/28Vdc Two Transistor Output, 400mA @ 60Vac/Vdc

0.624lbs/ft (10g/l)3

Operating temp.

Order no.

Ambient temp.

Pressure

Fork material

Supply voltage

Power consumption

Fail safe mode

Type

Dimensions

Output

Vibrating frequency

Conduit entrance

Protection

Housing material

Delay time

Indicators

Minimum density

Inch(mm)

SC352

Type E: Coated Cable Extended

Diecast Aluminum (powder coated)

1-1/2"NPT

1/2"NPT

29.5~787.4"(750~20000)

0.63"(16)

6.10"(155)

f1.65"(42)

1.34"(34)

rubber

PVC cable

rubber

f (84)3.30"

5

PANEL DESCRIPTION

:Test button

:Function switch

:Power indicator

:Signal indicator

:Alarm indicator L N GNDSIGPWR ALM

F.S.MAXMIN

D.T.SL

S.G.HL

S.D.OFFON

S.I.F.S.O.S.

S.S.OFFON

AC/DC19~253V

Test

Reverse output signal Reverse output signal can be used to provide a method for testing control equipment which is connected to sensor output

MAX: HighMIN: Low

Test Test Button

F.S. Fail Safe

D.T. Delay Time

S.G.

S.D.

S.S.

S.I.

Specific Gravity

Self Diagnostics

Super Safe

Signal Indicator

H: 50 g/l L: 10 g/l

OFFON

F.S.O.S.

OFFON

Abb. Functions Description Remarks

Includes high low fail-safe mode

S: General Settings

L: 5 seconds

Material covered: 0.5sMaterial not covered: 150 C:£ 1.5s230 C/280 C:£ 2s

⁰⁰ ⁰

3High Density >3.12lbs/ft (50 g/l setting)3 3Low Density ³0.624lbs/ft to 3.12lbs/ft (10 g/l setting)

ON setting allows the sensor to detect fork abrasion or material build-up; SIG LED will flash if trouble exists

When set ON Output 2 will be dedicated to indicate self-diagnostics alarm exists.

F.S. (fail safe) selected = Normal / Alarm status; O.S. (relay output status) selected = Relay energized (on) or de-energized (off)

L sets delay of 5s for covered/ uncovered

6

Two relay output

output1output2 Status Alarm

S.S. ONS.S. OFF

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

NO2 COM2 NC2

NO1 COM1 NC1 NO2 COM2 NC2

NO1 COM1 NC1 NO2 COM2 NC2

NO1 COM1 NC1 NO2 COM2 NC2

NO1 COM1 NC1 NO2 COM2 NC2

NO1 COM1 NC1 NO2 COM2 NC2

NO2 COM2 NC2

NO2 COM2 NC2

NO2 COM2 NC2

NO2 COM2 NC2

NO2 COM2 NC2

MAX

MIN

Power

L N GNDNO1 COM1 NC1 NO2 COM1 NC2

Output1 Output2

Two NPN/PNP output

L N GNDNO1 COM1 NO2 COM2

output1output2 Status Alarm

S.S. ONS.S. OFF

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

O.S.

F.S.

MAX

MIN

Power

Overcurrent protectionOutput 1

Overcurrent protectionOutput 2

Overcurrent protectionOutput 1&2

NO2 COM2<100mA

NO1 COM1<100mA

NO2 COM2<100mA

NO2 COM2<100mA

NO1 COM1<100mA

NO2 COM2<100mA

NO1 COM1Ll NO2 COM2

Ll NO2 COM2Ll

NO2 COM2Ll

NO2 COM2LlNO2 COM2

LlNO1 COMLl

NO2 COM2<100mA

NO2 COM2<100mA

NO2 COM2<100mA

NO2 COM2<100mA

NO1 COM1<100mA

NO2 COM2<100mA

NO2 COM2Ll

NO2 COM2<100mA

NO1 COM1<100mA

NO1 COM1<100mA

:ON :Blinking :OFF :Relay ON :Relay OFF :Load currentLl

※When output is off, there will be no error current status.

Fail-safe mode

LevelOutput signal LED Indicator

green yellow red

Fork build-up

Fork abrasion

Maintain theprevious state

Maintain theprevious state

Maintain the previous state

Maintain the previous state

Fork build-up

Fork abrasion

LevelOutput signal LED Indicator

green yellow red

Fail-safe mode

WIRING AND FUNCTION

19~253 Vdc/Vac50/60Hz

Fuse0.5A

Load Load

19~253 Vdc/Vac50/60Hz

Fuse0.5A

Load Load

Output1 Output2

7

AMBIENT TEMPERATURE / PROCESS TEMPERATURE

T a

T p

T a

T p

-40⁰F (-40⁰C)

T a

T p

185⁰F(85⁰C)

176⁰F(80⁰C)

32⁰F (0⁰C)

194⁰F (90⁰C)

302⁰F (150⁰C)

-40⁰F (-40⁰C)

120⁰F (50⁰C)

-40⁰F (-40⁰C)

185⁰F(85⁰C)

32⁰F (0⁰C)

-40⁰F (-40⁰C)

120⁰F (50⁰C)

374⁰F (190⁰C)

446⁰F (230⁰C)T p

T a

T a

T p

-40⁰F (-40⁰C)

185⁰F(85⁰C)

32⁰F (0⁰C)

120⁰F (50⁰C)

446⁰F (230⁰C)

536⁰F (280⁰C)

-40⁰F (-40⁰C)

-40⁰F~446⁰F (-40⁰C~230⁰C) -40⁰F~536⁰F (-40⁰C~280⁰C)

A

B

:Standard/Extension

:Cable wire

A:The cooling pipe out of insulating layer

B:The cooling pipe in insulating layer

cooling pipe

insulating layer

:With cooling pipe

※ETFE Coating: Process temperature maximum = 302⁰F (150⁰C)※PTFE Coating: Process temperature maximum = 446⁰F (230⁰C)

INSTALLATION

8

Top Mount Installation (Figure 1):1. It is recommended that the SC35 series vibrating fork point level sensor be installed away from the vessel fill

inlet so as to avoid impact from material that can damage the probe or create false signaling.2. Understand the material flow profile and characteristics in the vessel before choosing a mounting location.

Side Mount Installation (Figure 2, 3):1. It is recommended to install the SC35 series vibrating fork point level sensor away from the flow of material

from the vessel inlet.2. It is recommended to install a protective baffle or shield above the probe to eliminate impact from any falling

material that can damage the probe or create a false indication of material presence.3. For best performance install side mounted units at a downward angle of approximately 20 degrees to

promote the flow of material away from the probe and to optimize the sensitivity of the unit. 4. Make sure conduit entrances are pointing downward during installation to avoid the ingress of moisture into

the enclosure by or through the conduit or conduit connections.

Notice:1. Do NOT climb on the SC35 Series vibrating fork or use it as a step.2. Do NOT tighten the unit into its mounting connection by the housing, always tighten using the hex provided

as a part of the probe section.3. Do NOT do anything that might cause bending of the fork tines nor should you attempt to modify the length

of the probe section.

Figure 1

inlet inlet

150mm

Figure 2

150mm

L

inlet

150mm

Figure 3

ORDER INFORMATION

SC35

Power & Output

Certification0: Ordinary Locations (non-explosionproof)1: Dust Explosionproof (DIP A20/A21 TA T2~T6 IP66/67)

Conduit Entrance0: 1/2"NPT

Process ConnectionEU: 1-1/2” NPTEO: ” ANSI 150lbs FlangeEP: ” ANSI 300lbs FlangeEL: ” ANSI 600lbs FlangeFO: 2” ANSI 150lbs Flange

1-1/21-1/21-1/2

Probe & Process Temperature

Fork Material & Surface Finish*

Coating Material

Remarks

0: Standard (302⁰F/150⁰C)1: Standard High Temp (446⁰F/230⁰C)2: Pipe Extended (302⁰F/150⁰C)3: Pipe Extended High Temp (446⁰F/230⁰C)

Fork Length & Minimum Density

Probe Length

Probe Type0: Standard1: Pipe Extended2: Coated Cable Extended

C: 19-253Vac/Vdc, 50/60Hz; TWO Relay Output 6A @ 250Vac/28VdcD: 19-253Vac/Vdc, 50/60Hz; TWO Transistor Output 400mA @ 60Vac/Vdc

30: Standard 6.1” (155mm); 0.624lbs/ft (10g/l)

0: 316LSS/Ra£ 3.2µm (126 in)1: 316SS/Ra 3.2µm2: 304SS/Ra 3.2µm

µ£ (126µin)£ (126µin)

0: None1: ETFE (anti-corrosive)*2: PTFE (anti-buildup)**

XX: Standard05: Below 19” (500mm)10: 20” to 39” 15: 40” to 59” 20: 60” to 79” 25: 80” to 98” 30: 99” to 118” 35: 119” to 138”

Specify exact length required

9

0

FP: 2” ANSI 300lbs FlangeFL: 2” ANSI 600lbs FlangeHO: 3” ANSI 150lbs FlangeHP: 3” ANSI 300lbs FlangeHL: 3” ANSI 600lbs Flange

A4: 513” to 551”A5: 552” to 591”A6: 592” to 630”A7: 631” to 669”A8: 670” to 709”A9: 710” to 748”B0: 749” to 787”SS: Special

40: 139” to 157” 45: 158” to 177”50: 178” to 197”55: 198” to 217”60: 218” to 236”65: 237” to 256”70: 257” to 276”75: 277” to 295”

80: 296” to 315”85: 316” to 335”90: 336” to 354”95: 355” to 374”A0: 375” to 394”A1: 395” to 433”A2: 434” to 472”A3: 472” to 512”

*Other surface finishes available include food grade sanitary and pharmaceutical sanitary

* Select ETFE coating for anti-corrosive application, flange process connection MUST be chosen. Coating is applied to all wetted metal parts including fork tines, any pipe extensio and underside of flange.

** Select PTFE for anti-buildup application only. Can be used with threaded and flange connections. Coating is applied only to fork tines with threaded connection, applied to all metal parts when flange connection is used.

4: Coated Cable Extended (176⁰F/80⁰C)5: Standard High-High Temp (536⁰F/280⁰C)6: Pipe Extended High-High Temp (536⁰F/280⁰C)

Aplus Finetek Sensor, Inc.

Global Network

Represented by:

Taiwan

TEL: 886-2-2269-6789FAX: 886-2-2268-6682EMAIL: info@fine-tek.com

FINETEK CO., LTD.

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Singapore

TEL:65-6452-6340FAX: 65-6734-1878EMAIL: info.sg@fine-tek.com

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California, U.S.

TEL: 1 909 598 2488 FAX: 1 909 598 3188EMAIL: info@aplusfine.com

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+49-(0)6142-17608-0FAX: +49-(0)6142-17608-20EMAIL: info@fine-tek.de

TEL:

Asia North Amerca Europe

Illinois, U.S.

TEL: 1 815 632-3132 FAX: 1 815 716 8464EMAIL: info@aplusfine.com

APLUS FINETEK SENSOR INC.

Taiwan

China

U.S.

Germany

U.S.

Singapore

08-SC35-B0-AM, 11/03/2014