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Tuning Fork Level Switch
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Tuning Fork Level Switch - 1

Tuning Fork Level Switch Innovation • Quality • Sharing

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Tuning Fork Level Switch - 2

WORKING PRINCIPLE The piezoelectric component is used to drive the tuning fork and feedback signal, which produces the resonation on the fork. When the fork comes into contact with a material, the fork will release some frequency signal as feedback. It will be converted into the output of the contact signal when the circuit detects the frequency decrease of the signal. The product relies on the damping effect by covering the testing material on the tuning fork which reduces the vibration frequency of the tuning fork and outputs a switch signal. Therefore, there is no signal...

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Tuning Fork Level Switch - 3

Dimensions (Unit:mm) Extension Type Supply voltage & output Standard Type Extension Type Extension Type SC2400/2410 【Cable Wire Type】 SC240 99:20~250Vac / Vdc 2 wire Contactless electronic switch. SC24199:12~55 Vdc 3 wire PNP/ NPN Output. Fork length Ambient temp. Ambient humidity Storage temp. Process temp. Process pressure Min. material density sensed Magnetic testing Output function test performed by putting magnets near the indicated spot Vibrating frequency 350~370Hz Green light:indicate power supply Red light:indicate operating mode Status indication Housing material Fork material IP...

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Tuning Fork Level Switch - 4

Dimensions (Unit:mm) Extension Type Standard Type Extension Type Standard Type Extension Type SC2800/2810 【Cable Wire Type】 SC2809:20~250,50/60Hz Vac/Vdc 2 wire Contactless electronic switch. SC2819:12~55 Vdc 3 wire PNP/ NPN Output Fork length Ambient temp. Ambient humidity Storage temp. Process temp. Process pressure Min. material density sensed Magnetic testing Liquid:density: ³0.7g/cm3 Viscosity:1~10000 cSt Output function test performed by putting magnets near the indicated spot Vibrating frequency 1 KHzK10% Green light:indicate power supply Red light:indicate operating mode Status...

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Tuning Fork Level Switch - 5

STANDARD TYPE Model No. Level sensor housing Probe construction SC1410【Tuning Fork Ultra Extension Type】 Aluminum / IP65 SUS 304 / 316 / 316L Conduit Max. vertical load on rod. Process pressure. SC1420【Tuning Fork Extension Type】 Power supply Power consumption Ambient temp. Process temp. Signal output Min. material density sensed Time delay Relay, SPDT, 5A/250Vac/ 28Vdc, 1 set or 2 set SSR(MOSFET) 400mA/60 Vac/ Vdc, 1 set or 2 set Solid:³0.07g/cm3, Liquid: ³0.7g/cm3 0.6 Second / Operate; 1~3 Seconds / Reset Vibrating frequency. Selectable Fail-safe Selectable sensitivity

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Tuning Fork Level Switch - 6

STANDARD TYPE Model No. Level sensor housing Probe construction Mounting Conduit Max. vertical load on rod. Process pressure. SC1540 【Corrosion Proof Type】 316L Coating TEFLON 1" Flange (min.) Power supply Power Consumption Ambient temp. Process temp. Signal output Relay, SPDT, 5A/250Vac/ 28Vdc, 1 set or 2 set SSR(MOSFET) 400mA/60 Vac/ Vdc, 1 set or 2 set Min. material density sensed Time delay Vibrating frequency. Selectable Fail-safe Selectable sensitivity Solid: ³0.07g/cm3, Liquid: ³0.7g/cm3 0.6 Second / Operate; 1~3 Seconds / Reset 350~370Hz Hi./ Lo. Hi./

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Tuning Fork Level Switch - 7

NEPSI PROOF No.GYB16.1938X Exd IIC T3~T6 Gb ExtD A20/A21 IP65 T80BC or T95BC or T130BC or T195BC PTB PROOF No. 09 ATEX 1058 II 2G Ex d IIB T4 II 2D Ex tD A21 IP65 T130BC or T95BC or T80BC EX-PROOF TYPE Dimensions (Unit:mm) Model No. Level sensor housing Probe construction Mounting Conduit Max. vertical load on rod. Process pressure. Power supply Power consumption SC1741【Tuning Fork Ultra Extension Type】 Ambient temp. Process temp. Signal output Relay, SPDT, 3A/250Vac/ 28Vdc, 1 set or 2 set SSR(MOSFET) 400mA/60 Vac/ Vdc, 1 set or 2 set Min. material density sensed Time delay Vibrating...

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Tuning Fork Level Switch - 8

SC35 TUNING FORK LEVEL SWITCH Level sensor housing Built-in box, aluminum coating IP66/IP67 Power supply Probe construction Voltage endurance capability Overvoltage protection Ambient temp. Process temp. Material density External diameter of cable applicable to conduit Pressure resistance Output signal Contact capacity Ex-proof certification Measuring frequency Material dimension Conduit 140 Hz ± 5 Hz Max.10 mm 1/2”PF / 1/2”NPT(Ex-proof type only supports 1/2”NPT) f6~f10 mm Max.25 Bar 2 sets of SPDT relay output/2 sets of transistor output / 3 wires NPN/PNP transistor output Relay: 6A /...

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Tuning Fork Level Switch - 9

SC35 TUNING FORK LEVEL SWITCH SC351【 High-temp. Extension Type】 Level sensor housing Built-in box, aluminum coating IP66/IP67 Power supply Probe construction Voltage endurance capability Overvoltage protection Storage temp. Ambient temp. Process temp. Material density Measuring frequency Material dimension Conduit External diameter of cable applicable to conduit Pressure resistance Output signal Contact capacity Ex-proof certification Max.10 mm 1/2”PF / 1/2”NPT(Ex-proof type only supports 1/2”NPT) f6~f10 mm Max. 25 Bar 2 sets of SPDT relay output/2 sets of transistor output Relay: 6A /...

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Tuning Fork Level Switch - 10

NEPSI PROOF No.GYB14.1796X Ex ia IIC T3~T6 Ga ^ Output type is 8/16mA current output type has certified by NEPSI. SC38 MULTI-FUNCTIONAL TUNING FORK LEVEL SWITCH Dimensions (Unit:mm) SC382 [Ultra Extension Type] ^It shall combine with the ex-proof fence meeting level Ex ia to form the intrinsically safe system. Please refer to page 28 for more details.

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Tuning Fork Level Switch - 11

SC38 MULTI-FUNCTIONAL TUNING FORK LEVEL SWITCH NEPSI PROOF No.GYB14.1796X Ex ia IIC T3~T6 Ga ※ Output type is 8/16mA current output type has certified by NEPSI. Output type Working voltage Power consumption Input protection SC381 SC382 【High-temp. Extension Type 】 【High-temp. Extension Type】 3 wires (NPN/PNP) output type Dual-relay output type Reversed power supply protection function Overvoltage protection Measuring error Repeatability Hysteresis band Storage temp. Ambient temp. -40~85 BC(Refernce operation manual) -40~150 BC Process temp. Applicable density liquid Liquid viscosity Granule...

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Tuning Fork Level Switch - 12

Dimensions (Unit:mm)

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Tuning Fork Level Switch - 14

Relay output type(SPDT) SSR(MOSFET) output type Relay output type (DPDT) SSR(MOSFET) output type FUNCTIONAL DESCRIPTION Description of terminal functions • L+, N-: Power Supply • NC, COM, No: Relay Output • RT1, RT2: Remote-Test • /T/7 : Ground Connection • COM1, NO1 : SSR(MOSFET) Output • COM2, NO2 : The second set of SSR (MOSFET) output (Optional) FAIL-SAFE HIGH / LOW PROTECTION FSH (Fail-Safe High) Protection: Switch to FSH mode. Normal Status: The signal lamp is on. It indicates that the tuning fork switch does not sense the material and the relay is conductive. Failure: When the...

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