ISO-9001:2000 certified
SC Series Tuning Fork
Liquid Level Switch
More than just another level measurement company ….
Aplus Finetek Sensor, Inc.
PRODUCT INTRODUCTION
OPERATING PRINCIPLE
FEATURES
The SC series tuning fork level switch is suitable for
detecting the presence and absence of liquids and
solutions of a wide range of fluid materials.
The principle of operation is based on changes in
vibration frequency of the tuning fork when it comes
in contact with the target fluid. The SC unit contains
piezoelectric crystals to produce a vibration of the
probe structure at its resonant frequency when free
of the target material. When the fork probe comes
into contact with the material the vibration is
weakened/dampened and the frequency changes,
which is detected by the SC unit's electronics and
the switch electric output changes state.
Ÿ Reliable and maintenance free solidstate
technology with no moving parts
Ÿ No calibration required unlike RF and
capacitance based level switches
Ÿ Fail-safe on power failure
Ÿ Compact and standard versions with a choice
of outputs for a wide range of applications and
use
Ÿ Universal 20-250VAC/VDC power supply
available
Ÿ Use with liquids have S.G. ³0.7 and up to
10,000cSt viscosity
Ÿ Can be used for some dry freely flowing
powders and small granular materials with bulk
densities ≥ 4.4lbs/ft3 (0.07g/cm3)
APPLICATIONS
INDUSTRY USE
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
For material presence detection:
Water/wastewater
Food and ingredients
Beverages
Feed milling
Chemical
Petrochem
Plastic production and processing
Many others
Ÿ Trigger an alarm or illuminate an indicating light
Ÿ Close a valve to shutoff the filling of a vessel
Ÿ Open a valve to discharge material from a
temporary storage vessel
For material absence detection:
Ÿ Trigger an alarm or illuminate an indicating light
Ÿ Close a valve to stop the discharge of material
Ÿ Open a valve to begin filling vessel with material
CONSTRUCTION FOR STANDARD TYPE (SC1400)
Vibrating Fork
Process
Connection
1
Housing
TYPES & SPECIFICATIONS
COMPACT TYPE / STANDARD FORK
Inch
Inch
Inch
(mm)
(mm)
(mm)
4.49
(114)
0.984
(25)
0.984
(25)
HEX38
1PT
Max.
ø1.06 9.84
(ø27) (250)
10.75
(273)
0.984
ø1.14
(25)
(ø29)
Non-extended Probe
Extended Probe
10.16
(258)
0.984
(25)
1PT
ø1.06
(ø27) Max.
0.906
(23)
0.787
(20)
Model No.
HEX38
4.13
(105)
4.13
(105)
Type
4.49
(114)
4.49
(114)
10.67
(271)
Dimensions
ø1.50
(ø38)
ø1.50
(ø38)
ø1.50
(ø38)
0.984
(25)
ø1.14
(ø29)
1PT
ø1.06 Max.
(ø27) 9.84
(250)
4.13
(105)
9.84
(250)
0.906
(23)
0.787
(20)
Non-extended Probee
0.984
(25)
HEX38
Extended Probe
0.906
(23)
0.787
(20)
Non-extended Probe
Extended Probe
Compact / DIN Connector
Compact / M12 Connector
Compact / Prewired Cable
SC2400/2410
SC2400/2410
SC2400/2410
Ambient temp.
-40⁰F~140⁰F (-40⁰C~60⁰C)
Process temp.
-40⁰F~212⁰F (-40⁰C~100⁰C) or -40⁰F~302⁰F (-40⁰C~150⁰C) optional
Wetted material
304SS, 316SS or 316LSS
Pressure
580psi (40bar)
Housing
material
304SS
Protection
IP65
Conduit/
elec. conn.
DIN 43650 Connector
IP67
M12 Connector
Prewired Cable(2m
length, PVC jacket,
24AWG
Vibrating
frequency
Supplyvoltage
& output
SC240: 20~250VAC/VDC with 2-wire (500mA Load Max.)
SC241: 12~55VDC 3-wire (350mA Load Max.)
Function test
Output function test performed by applying magnet to test point on housing
Minimum
density
350~370Hz
Liquids: S.G. ³ 0.7 / Solids: ³ 4.14lbs/ft 3 (0.07g/cm 3 )
£ 10,000cSt
Liquid viscosity
Indicators
ø1.14
(ø29)
Green LED: power on indication
Red LED: On = switch closed / Off = switch open
2
TYPES & SPECIFICATIONS – COMPACT TYPE / MINI FORK
Inch
Inch
Inch
(mm)
(mm)
(mm)
ø1.50
(ø38)
ø1.50
(ø38)
4.37
(111)
Dimensions
4.37
(111)
8.46
(215)
1.57
(40)
HEX38
3/4PT Max.
ø0.827 9.84
(ø21) (250)
ø0.905
(ø23)
0.67
(17)
0.67
(17)
Non-extended Probe
4.37
(111)
8.46
(215)
1.02
(26)
1.42
(36)
ø1.50
(ø38)
1.42
(36)
1.57
(40)
Extended Probe
7.99
(203)
1.02
(26)
HEX38
3/4PT
Max.
ø0.827 9.84
(250)
(ø21)
0.67
(17)
Non-extended Probe
ø0.905
(ø23)
1.02
(26)
HEX38
3/4PT
Max.
ø0.827 9.84
(250)
(ø21)
1.42
(36)
1.57
(40)
0.67
(17)
Extended Probe
0.67
(17)
0.67
(17)
Non-extended Probe
Extended Probe
Type
Compact / DIN
Connector
Compact / M12
Connector
Compact / Prewired
Cable
Model no.
SC2800/2810
SC2800/2810
SC2800/2810
Ambient temp.
-40⁰F~140⁰F (-40⁰C~60⁰C)
Process temp
-40⁰F~212⁰F (-40⁰C~100⁰C) or -40⁰F~302⁰F (-40⁰C~150⁰C) optional
304SS, 316SS or 316LSS
Wetted material
Pressure
580psi (40bar)
Housing
material
304SS
Protection
Conduit/
elec. conn.
IP65
IP67
DIN 43650 Connector
M12 Connector
Prewired Cable(2m
length, PVC jacket,
24AWG
Vibrating
frequency
Supplyvoltage
& output
SC280: 20~250VAC/VDC with 2-wire (500mA Load Max.)
SC281: 12~55VDC 3-wire (350mA Load Max.)
Function test
Output function test performed by applying magnet to test point on housing
Minimum
density
350~370Hz
Liquids: S.G. ³ 0.7 / Solids: ³ 4.14lbs/ft3 (0.07g/cm3)
£ 10,000cSt
Liquid Viscosity
Indicators
Green LED: power on indication
Red LED: On = switch closed / Off = switch open
3
ø0.905
(ø23)
TYPES & SPECIFICATIONS – STANDARD TYPE
Inch
Inch
ø4.45
(ø113)
(mm)
4.25
(108)
ø4.45
(ø113)
Inch
(mm)
1/2"NPTx2
(mm)
ø4.45
(ø113)
4.25
(108)
1/2"NPTx2
0.787 (20)
4.25
(108)
Dimensions
0.787 (20)
1"PT
1/2"NPTx2
1"PT
0.787 (20)
0.984 (25)
1" PT
ø1.06 (ø27)
4.13 (105)
ø1.14 (ø29)
ø1.07
(ø27.2)
9.84~118.1
(250~3000)
5.12~9.84
(130~250)
ø1.06 (ø27)
ø1.06 (ø27)
4.13
(105)
4.13
(105)
Type
Standard
Standard Ultra Extended
Standard Extended
Model no.
SC1400
SC1410
SC1420
Ambient temp.
40⁰F~140⁰F (-40⁰C~60⁰C)
Process temp.
-40⁰F~266⁰F (-40⁰C~130⁰C)
Wetted material
304SS, 316SS or 316LSS
Pressure
Housing material
580psi (40bar)
Powder Coated Diecast Aluminum
Protection
IP65
Conduit/
elec. conn.
Vibrating
frequency
Two (2) ½”NPT Conduit Entrances
Supply voltage
350~370Hz
20~250VAC/VDC 50/60Hz
Output
Relay: One (1) or Two (2) SPDT 5A@250VAC/28VDC
SSR (MOSFET): One (1) or Two (2) 400mA@60VAC/VDC
Fail-safe
Selectable High or Low
Time delay
Fixed: 0.6s to operate, 1~3s to reset
Minimum density
Liquids: S.G. ³ 0.7 / Solids: ³ 4.14lbs/ft3 (0.07g/cm3)
Liquid Viscosity
£ 10,000 cSt
Sensitivity
Adjustable Hi-Lo Potentiometer
4
Inch
Inch
(mm)
(mm)
ø4.45
(ø113)
ø4.45
(ø113)
4.25 (108)
4.25 (108)
1/2"NPTx2
1/2"NPTx2
Dimensions
4.13 (105)
Type
Model no.
4.13 (105)
Standard Corrosion Proof
Standard Sanitary
SC1540
SC1600
Ambient temp.
-40⁰F~140⁰F (-40⁰C~60⁰C)
Process temp.
-40⁰F~266⁰F (-40⁰C~130⁰C)
Wetted material
Teflon Coated 316LSS
304SS, 316SS or 316LSS
Mounting typel
Flange
Tri-Clamp
580psi (40bar)
Pressure
Housing material
Powder Coated Diecast Aluminum
IP65
Protection
Conduit/elec. conn.
Two (2) 1/2”NPT Conduit Entrances
Vibrating frequency
350~370Hz
Supply voltage
20~250VAC/VDC 50/60Hz
Output
Relay: One (1) or Two (2) SPDT 5A@250VAC/28VDC
SSR (MOSFET): One (1) or Two (2) 400mA@60VAC/VDC
Fail-safe
Selectable High or Low
Time delay
Minimum density
Fixed: 0.6s to operate, 1~3s to reset
Liquids: S.G. ³ 0.7 / Solids: ³ 4.14lbs/ft3 (0.07g/cm3)
£ 10,000 cSt
Liquid Viscosity
Sensitivity
Adjustable Hi-Lo Potentiometer
5
TYPES & SPECIFICATIONS –
EXPLOSIONPROOF TYPE
NEPSI PROOF No.GYJ111212 Ex d IIC T3~T6
PTB PROOF No. 05 ATEX 1058 II 2G Ex d IIB T4 Gb
II 2D Ex tb IIIC T80⁰C ~ T130⁰C Db IP65
Inch
(mm)
ø4.45
(ø113)
4.25
(108)
1/2"NPTx2
Dimensions
0.787 (20)
1" PT
4.13 (105)
Type
Model no.
Ambient temp.
Standard Ultra Extended
Explosionproof
Standard Explosionproof
SC1740
SC1741
-40⁰F~140⁰F (-40⁰C~60⁰C)
Process temp.
-40⁰F~266⁰F (-40⁰C~130⁰C)
Wetted material
304SS, 316SS or 316LSS
580psi (40bar)
Pressure
Housing material
Powder Coated Diecast Aluminum
Explosionproof / IP65
Protection
Conduit/elec. conn.
Two (2) 1/2”NPT Conduit Entrances
Vibrating frequency
350~370Hz
Supply voltage
20~250VAC/VDC 50/60Hz
Output
Relay: One (1) or Two (2) SPDT 5A@250VAC/28VDC
SSR (MOSFET): One (1) or Two (2) 400mA@60VAC/VDC
Fail-safe
Selectable High or Low
Time delay
Minimum density
Fixed: 0.6s to operate, 1~3s to reset
Liquids: S.G. ³ 0.7 / Solids: ³ 4.14lbs/ft3 (0.07g/cm3)
£ 10,000 cSt
Liquid Viscosity
Sensitivity
Adjustable Hi-Lo Potentiometer
6
TERMINAL CONNECTIONS/
SENSITIVITY ADJUSTMENT – STANDARD TYPE
SC1400X, SC1410X, SC1420X, SC1540X,SC1600X, SC1740X, SC1741X
ONE SPDT Relay Output
TWO SPDT Relay Outputs
SENSITIVITY
SENSITIVITY
PWR
SIGNAL FSL FSH L
PWR
H
SIGNAL FSL FSH L
H
20~250VAC
20~250VDC
20~250VAC
20~250VDC
SPDT Type
N-
L+
Relay output type (DPDT)
SSR(MOSFET) output type
Relay output type(SPDT)
RT2 RT1 NC COM NO
DPDT Type
RT2
RT1
N-
L+
RT2 RT1 COM2 NC2 NO2 COM1 NC1 NO1 N-
SSR(MOSFET) output type
L+
RT2 RT1
2
2
1
1
N-
L+
COM2 NC2 NO2 terminals not provided if ONE SPDT Relay is provided
2 _ 2 SSR (MOSFET) terminals not provided if ONE SSR (MOSFET) is provided
TERMINAL FUNCTION
PANEL FUNCTION
L+, N-: Power Supply
PWR: Power is on when illuminated (Green)
SIGNAL: Output indication - Normal condition
when illuminated (Red), Alarm condition exists
when extinguished
FSH: Fail-Safe High
(refer to FAIL-SAFE HIGH / LOW PROTECTION
Section for further information).
FSL: Fail-Safe Low
(refer to FAIL-SAFE HIGH / LOW PROTECTION
Section for further information).
SENSITIVITY L/H: Adjust sensitivity of sensing
element using this potentiometer.
Counterclockwise adjustment will DECREASE the
sensitivity, Clockwise adjustment will INCREASE
the sensitivity.
NC1, COM1, NO1: Relay Output *
NC2, COM2, NO2: Relay Output **
RT1, RT2: Remote Test
：Ground Connection
：1st SSR (MOSFET) Output
：2nd SSR (MOSFET) Output†
* If only one relay output is provided designation will
be NC, COM, NO.
** Terminals exist only if the unit is specified and
provided with two relay outputs.
† Terminals exist only if the unit is specified and
provided with two SSR (MOSFET) outputs.
FAIL-SAFE HIGH / LOW PROTECTION
(refer to illustrated table on page 8)
FSH (Fail-Safe High) Protection:
With the fail-safe switch in the FSH position:
Normal condition:
The SIGNAL LED is on, unit is NOT SENSING the
target material, relay is energized and the output
condition is opposite that shown in the terminal
labels, i.e. NC is open, NO is closed.
Power failure condition:
When power to the sensor fails the SIGNAL
LED is off, relay is de-energized and the output
condition is as shown on the terminal labels, i.e. NC
is closed, NO is open. This duplicates an Alarm
condition for High level application where the SC unit
is sensing the target material.
FSL (Fail-Safe Low) Protection:
With the fail-safe switch in the FSL position:
Normal condition:
The SIGNAL LED is on, unit IS SENSING the target
material, relay is energized and the output condition
is opposite that shown in the terminal labels, i.e. NC
is open, NO is closed.
Power failure condition:
When power to the sensor fails the SIGNAL
LED is off, relay is de-energized and the output
condition is as shown on the terminal labels, i.e. NC
is closed, NO is open. This duplicates an Alarm
condition for Low level application where the SC unit
is not sensing the target material.
7
SENSITIVITY ADJUSTMENT
The SENSITIVITY adjustment potentiometer is located on the upper sight side of the panel inside the SC standard
type enclosure. In general there is no need to adjust the SC sensitivity. However, if required during setup it is
possible to make adjustments to the sensor sensitivity using a simple instrument screwdriver.
The SC sensitivity is factory set at the maximum value. The switching point is approximately 0.591” (15mm) from
the tip of the fork (vertical/top mounting orientation) based on an S.G. of 1.0. If desired, the switching point can be
changed by adjusting the sensitivity of the SC.
If you reduce the sensitivity by turning the potentiometer counterclockwise, the switching point will move further
away from the tip of the fork (closer to the process connection, based on a vertical/top mounting orientation). If
the sensitivity is increased by turning the potentiometer clockwise, the switching point will move closer to the tip of
the fork (based on vertical/top mounting orientation). The maximum adjustment of the switching point, based on
an S.G. of 1.0, will be approximately 2.36” (60mm).
Example: based on a fluid with an S.G. = 1.0 and vertical / top mount orientation, if the switching point is 15mm
based on the factory setting and it needs to be located 30mm further away from the tip of the fork, then the
potentiometer is to be turned counterclockwise by about 10 full rotations or turns. Refer to page 9 for more
information.
FSL
FSH
Level
Contact
form
NO
COM
NC
NO
COM
NC
NO
COM
NC
NO
COM
Indication
Status
Fail
Normal
8
Normal
Fail
NC
WIRING CONNECTIONS – COMPACT TYPE
SC240/280 2-WIRE AC/DC
Min.
1
2
Max.
3
Brown Black
Power Supply Wiring:
Power supply is 20-250VAC/VDC connected to terminals/wires
labeled L+ (Black wire for M12/Cable) and N- (Brown wire) as
shown in Figure 1. PE shown in DIN and M12/Cable wiring
diagram is “earth ground”.
4
Blue
1
Yellow
Green
2
3
Brown Black
N- L+
Min. (low):
In the Min. / Low mode of operation the switch will be
open when fluid is ABSENT at the sensor fork and closed when
the fluid is PRESENT at the fork. Pin 1 (Brown wire in
M12/cable) is connected to N-, and Pin 2 (Black wire) is
connected to the N+ through the Load as shown. Pin 4
(Yellow/Green) is connected to the tank or earth ground (PE).
4
Blue
Yellow
Green
N- L+
Figure 1 Two wires wiring
Max.
Min.
Yellow Green
Brown
1
Max.
Min.
Yellow Green
Black
2
Brown
1
3
2
Black
Blue
Black
Blue
Black
Brown
Yellow Green
Brown
Yellow Green
3
Blue
Blue
PE N - L +
PE N - L +
PE
N-
Max. (high):
In the Max. / high mode of operation the switch will
be closed when fluid is ABSENT at the sensor fork and open
when the fluid is PRESENT at the fork. Pin 1 (Brown) is
connected to N-, and Pin 3 (Blue) is connected to Pin 2 (Black),
which is then connected to N+ through the Load as shown. Pin
4 (Yellow/Green) is connected to the tank or earth ground (PE).
L+
PE
N-
L+
DIN Wiring Diagram
M12x1、Cable Wiring Diagram
SC241/281 3-WIRE DC
PNP
Max.
Min.
1
3
2
Blue
Black
Brown
1
3
2
Black
1
3
2
Black
Yellow
Green
Brown
1
3
2
PNP
Min.
Black
Blue
Brown
Yellow Green
Black
Blue
Brown
Yellow Green
Black
Blue
Blue
Blue
R
Brown
Max.
Min.
Yellow
Green
Yellow
Green
Yellow
Green
Brown
NPN
Max.
Max.
NPN
Black
Blue
Brown
Yellow Green
Min.
Black
Blue
Brown
Yellow Green
R
R
PE N-
L+
PE N-
L+
PE L+ N-
PE L+
N-
PE N- L+
PE N- L+
PE L+ N-
PE L+ N-
M12x1、Cable Wiring Diagram
Figure 2 PNP / NPN Output Wiring Diagram
DIN Wiring Diagram
Power Supply Wiring:
Power supply is 12-55VDC connected to terminals/wires labeled L+ (Black wire for M12/Cable) and N- (Brown wire) as shown in Figure 2.
PE shown in the DIN and M12/Cable wiring diagrams is “earth ground”.
PNP Wiring:
Min. (low): In the Min. / Low mode of operation the switch will be open when fluid is ABSENT at the sensor fork and closed when the fluid
is PRESENT at the fork. Pin 1 (Brown wire in M12/cable) is connected to N-, and Pin 2 (Black wire) is connected to the N+. Pin 3 (Blue
wire) is connected to N- through the Load as shown.
Pin 4 (Yellow/Green) is connected to the tank or earth ground (PE).
Max. (high): In the Max. / high mode of operation the switch will be closed when fluid is ABSENT at the sensor fork and open when the
fluid is PRESENT at the fork. Pin 1 (Brown) is connected to N–, and Pin 3 (Blue) is connected to L+. Pin 2 (Black), which is then
connected to N- through the Load as shown. Pin 4 (Yellow/Green)
is connected to the tank or earth ground (PE).
NPN Wiring:
Min. (low): In the Min. / Low mode of operation the switch will be open when fluid is ABSENT at the sensor fork and closed when the fluid
is PRESENT at the fork. Pin 1 (Brown wire in M12/cable) is connected to N+, and Pin 2 (Black wire) is connected to the N-. Pin 3 (Blue
wire) is connected to N+ through the Load as shown.
Pin 4 (Yellow/Green) is connected to the tank or earth ground (PE).
Max. (high):
In the Max. / high mode of operation the switch will
be closed when fluid is ABSENT at the sensor fork and open when the fluid is PRESENT at the fork. Pin 1 (Brown) is connected to N+,
and Pin 3 (Blue) is connected to L-. Pin 2 (Black), which is then connected to N+ through the Load as shown. Pin 4 (Yellow/Green)
is connected to the tank or earth ground (PE).
9
ADJUSTMENTS/INDICATIONS – COMPACT TYPE
SWITCHING POINT
MAGNETIC TEST
The switching point for the SC24 compact tuning fork level switch
with the 105mm fork length is as shown in Figure 3.
In a vertical orientation (top mounting), with a fluid having an S.G.
= 1.0 (62.4lbs/ft3) the switching point is approximately
0.905”(23mm) from the tip of the fork. For fluid with an S.G. <1.0
(62.4lbs/ft3) the switching point distance from the tip of the fork
will increase. Conversely, for a fluid with an S.G. > 1.0 (62.4lbs/ft3)
the switching point distance from the fork tip will increase. The
switching point for the SC28 compact tuning fork level switch with
40mm fork is 12mm (based on vertical orientation and fluid with
S.G. = 1.0(62.4lbs/ft3), as shown in Figure 3.
After the switch has installed and power tested, magnetic switch
can be performed accordingly.
Output status will switch from status of NO. to NC. or NC to NO.
and red LED would indicate the vibration status by on / off.
When magnet is pulled away from the housing, red LED would
return as default while fork continues to vibrate. By this
verification, user can confirm the wiring and function are correct
or not.
Testing
point
Magnet
3
S.G.< 1.0 (62.4lbs/ft )
Trigger Point
moves upward
S.G.<1.0 (62.4lbs/ft3)
Trigger Point
moves upward
Sensing spot
10 mm
Trigger
point
3
S.G.> 1.0 (62.4lbs/ft )
Trigger Point
moves downward
23mm
S.G.>1.0 (62.4lbs/ft3)
Trigger Point
moves downward
Figure 3
SC240/280 - Output/LED Status
SC241/281 - Output/LED Status
Min. (low) Mode:
The SC240/280 is equipped with an AC/DC power supply and
solidstate relay output that can be either open or closed.
There is a 3 second delay in the activation of the SC unit when
the power is initially applied, subsequent to this the relay switch
is open and the red LED off. When the target material covers
the fork, the vibration stops and the relay switch becomes closed
and red LED is illuminated.
Min. (low) Mode:
The SC241/281 is equipped with a solidstate 3-wire DC
PNP/NPN transistor output whose switch can be either open
or closed. There is a 3 second delay in the activation of the SC
unit when the power is initially applied, subsequent to this the
transistor switch is open and the red LED off. When the target
material covers the fork, the vibration stops and the transistor
switch becomes closed and the red LED is illuminated.
Max. (high) Mode:
The SC240/280 is equipped with an AC/DC power supply and
solidstate relay output that can be either open or closed.
There is a 3 second delay in the activation of the SC unit when
the power is initially applied, subsequent to this the relay switch
is closed and the red LED is illuminated. When the target
material covers the fork, the vibration stops and the relay switch
becomes open and the red LED is off.
Max. (high) Mode:
The SC241/281 is equipped with a solidstate 3-wire DC
PNP/NPN transistor output whose switch can be either open
or closed. There is a 3 second delay in the activation of the SC
unit when the power is initially applied, subsequent to this the
transistor switch is closed and the red LED is illuminated. When
the target material covers the fork, the vibration stops and the
transistor switch becomes open and the red LED is off.
Min. Mode
Max.Mode
Min. Mode
Level
Contactless
electronic
switch
Max.Mode
Level
1
2
Switch open
1
2
Switch closed
1
2
Switch closed
1
PNP/
NPN
Output
2
Switch open
Red
LED
Red
LED
10
1
2
Switch open
1
2
Switch closed
1
2
Switch closed
1
2
Switch open
INSTALLATION
Horizontal Installation
1. Do not locate the SC series unit where the fork will be in the flow stream (Figures 1 and 3).
2. Keep the SC series fork protected to eliminate damage from falling material (Figure 1).
3. When installing the SC series unit to detect dry free flowing powder or small granular materials, always
take into account the angle of repose of the material surface (Figure 1).
4. Do not install SC series unit near fluid flow inlet (Figure 1, 2 and 3).
Vertical Installation
1. Based on the factory setting of the SC unit sensitivity, and a target fluid with an S.G. = 1.0, the switching
point will be approximately 15mm from the tip for all Standard units (23mm for all SC24 Compact units,
12mm For all SC28 Compact units).
2. When installing in a horizontal pipe or other conduit, fork orientation should be such to allow the fluid
to flow between the forks as shown below (Figure 4).
3. Do not install near or under material inlet flow (Figure 5).
inlet
inlet
20B
12
0m
m
Figure 1
Figure 2
Position hole
inlet
Position hole
Position hole
Figure 3
Figure 4
inlet
Figure 5
11
ORDER INFORMATION – STANDARD TYPES
SC
Model No.
1400:
1410:
1420:
1540:
1600:
1740:
1741:
Standard
Ultra Extended (3000mm max.)
Extended (250mm max.)
Corrosion Proof
Sanitary*
Explosionproof Standard
Explosionproof Ultra Extended
* For Ultra Extended or Extended versions of Sanitary design, select
Model 1410 or 1420 along with the Tri-Clamp process connection.
Power & Output
R:
N:
Q:
M:
One SPDT Relay, 20-250VAC/VDC
One SSR (MOSFET), 20-250VAC/VDC
Two SPDT Relays, 20-250VAC/VDC
Two SSR (MOSFET), 20-250VAC/VDC
Material (wetted parts)
0: 304SS
6: 316SS
L: 316LSS
Process connection
Dimension
C---3/4"
D---1")
E---1-1/2"
F---2"
G---2-1/2"
H---3"
I ---4"
J ---5"
K---6"
S---Special
Specification
M---5kg/cm2
N---10kg/cm2
O---150 Lbs
P---300 Lbs
Q---PT
R---PF(G)
T---BSP
U---NPT
W---PN 10
X---PN 16
Y---PN 25
Z---PN 40
S---Special
9---Tri-Clamp*
* 1-1/2” and 2” sizes only for Tri-Clamp sanitary type connection
Length (unit:mm)*
0500: < 500
1000: 500~1000
1500: 1001~1500
2000: 1501~2000
2500: 2001~2500
3000: 2501~3000
* Manufactured Length will be ±0.197” (5mm)
Preorder considerations
1. Please confirm your power supply voltage.
2. Please confirm your mounting orientation and location.
3. Please confirm the target material density, S.G or other units.
4. Do not install near any industrial vibrator mounted on wall of vessel.
5. Ensure material flow problems do not exist..
12
ORDER INFORMATION – COMPACT TYPES
SC
(T)
Model No.
24: Standard Fork (100mm)
28: Mini Fork (40mm)
Power & Output
0: 2-Wire Solidstate Switch, 20-250VAC/VDC
1: 3-Wire PNP/NPN Switch, 12-55VDC
Material (wetted parts)
0: 304SS
6: 316SS
L: 316LSS
Type
0: Non-extended Probe
1: Extended Probe
High Operating Temperature (302⁰F/150⁰C)
Electrical connection
A: M12x1(180B)
B: M12x1(90B)
C: CABLE
D: Valve plug DIN43650
(M12x1/ CABLE Wire length are 2M,PVC 24AWG)
Process connection
Dimension
C---3/4"
D---1"
E---1-1/2"
F---2"
G---2-1/2"
H---3"
I ---4"
J ---5"
K---6"
S---Special
Specification
M---5kg/cm2
N---10kg/cm2
O---150 Lbs
P---300 Lbs
Q---PT
R---PF(G)
T---BSP
U---NPT
W---PN 10
X---PN 16
Y---PN 25
Z---PN 40
S---Special
9---Tri-Clamp*
* 1” and 1-1/2” sizes only for Tri-Clamp sanitary type connection
Length (unit:mm)*
Up to 0250
* Manufactured Length will be ±0.197” (5mm)
Preorder considerations
1. Please confirm your power supply voltage.
2. Please confirm your mounting orientation and location.
3. Please confirm the target material density, S.G or other units.
4. Do not install near any industrial vibrator mounted on wall of vessel.
5. Ensure material flow problems do not exist..
13
Global Network
Germany
China
U.S.
Taiwan
U.S.
Singapore
Represented by:
Aplus Finetek Sensor, Inc.
08-SC-B0-AP, 05/24/2016