CONTENTS Capacitive Sensors

General Information 62 Calibration 65 Miniature Caps 66 Mini Cap Discs 67 Sensor Amplifiers 68 DC Sensors 69 AC Sensors 71 DC Level 73 AC Level 74 High Temp Level 75

61 CAPACITIVE SENSORS GENERAL INFORMATION

Application Repeat accuracy Material correction factor Capacitive proximity switches may be used to The repeat accuracy parameter describes the If the material of the object in question is not metal detect non-metallic and metallic materials. They maximum deviation from the sensing distance or water, the rated sensing distance (Sn) is can be utilised as contact or non-contact sensors when the object in question is approached several reduced. The reduction factors for the different depending upon the application and the sensing times. materials are given in the table below. medium concerned. Capacitive sensors may be used for controlling and monitoring machine Rated sensing distance (Sn) Material Thickness 3 r Reduction processes or as primary detectors for product The rated sensing distance is the usable sensing d/mm factor counting. Level indication for liquids or granular distance of a sensor when directed at a metal Steel ST-37 1.5 1.0 substances can be achieved either through the plate. In accordance with DIN VDE 0660 Part 208, Brass Ms 1.5 1.0 outer container or with direct contact with the it is a 1-mm-thick square metal plate, consisting of Water approx. 81 1.0 medium itself. We distinguish between two areas carbon steel Type FE 360 (definition to ISO Mikanit 132 2 4.5 0.44 of application for capacative sensors: 630:1980). The surface must be smoothed. (mica) 4 0.52 L 6 0.57 1. Sensor version flush mounted The size must be dimensioned so as to ensure that Sensors with a straight-line electrical field. UP 2 4.0 0.41 the edge length (m) of the square metal plate is equal , glass- 4 0.51 These units scan solids (e.g. wafers, components, to the diameter of the circle drawn on the active fibre-reinforced 6 0.54 PCB’s, hybrids, cartons, paper piles, bottles, surface or equal to three times the rated operating blocks and plastic plates) at a distance, or A 2 4.2 atm. humidity 0.34 distance Sn, depending on which is greater. (nylon 6.6) 4 0.45 liquids through a separating wall (glass or plastic 6 0.51 up to max. 4mm thick). If the plate is made from a different material, or has smaller dimensions, is unearthed, or exhibits a Polyamide B 3 5.3 atm. humidity 0.41 (Nylon 6) 6 0.48 different shape or surface quality, the rated 9 0.56 operating distances will be smaller. Melamin 2 7 0.53 Fabric-base laminate 4 0.62 Fig. 1.03 (HGW 2271) 6 0.66 Paper-base laminate 2 5 0.56 2. Sensor version non-flush mounted I ◗ (HP 2061) 4 0.62 Sensors with a spherical electrical field. These 6 0.68 units are designed to touch the product, bulk 2 2.5 DIN53483 0.24 goods or liquids involved (e.g. granulate, sugar, (PS) 4 0.31 flour, corn, sand, or oil and water) with their active 6 0.36 surface. 2 2.92 DIN53484 0.26 (PC) 4 0.36 6 0.40 Fig. 1.06 Polymethyl- 5 2.9 DIN53483 0.39 methacrylate 10 0.45 Size correction factor (acrylic glass, PMMA) 15 0.47 6 2.9 0.41 For objects which are not flat and are smaller in (PVC) 12 0.47 relation to the active sensor surface, the following Fig. 1.04 PVC foamed 3 1.5 - 2.5 0.22 sensing distances are obtained in dependence on 6 0.25 Sensing distance S the scaled object surface F/Fo, where Fo = sensor front surface (active surface), and This is the distance between the active sensor Fig 1.09 surface and the product being scanned at the F = front surface of the object being scanned. The moment of output-signal change. It depends on figures in the table below (Fig. 1.07) refer to flush shape, size and nature of the object concerned. sensors, and objects in the form of long thin rods. The diagram below (Fig. 1.08) shows in graphic form the generally valid particulars from the table Sensing (Fig. 1.07). distance Hysteresis Scaled object Sensing Øof object F in S in surface F/F0 distance S in % in mm mm2 mm 1.50 100 22.0 380.0 8.0 1.24 100 20.0 314.0 8.0 0.80 100 16.0 201.0 8.0 0.61 100 14.0 154.0 8.0 0.31 94.0 10.0 79.0 7.5 0.20 85.0 8.0 50.0 6.8 0.15 82.5 7.0 38.0 6.6 0.05 67.5 4.0 13.0 5.4 0.03 57.5 3.0 7.0 4.6 Fig. 1.07 Fig. 1.05 Fig. 1.08 Hysteresis The three right-hand columns of the table (Fig. Hysteresis is the distance differential between the 1.07) reflect the application example for an SK1-8- switch-on point (as the object approaches) and the M18-…-b sensor. switch-off point (as the object recedes again).

62 CAPACITIVE SENSORS

CONNECTION Minisensors capacitive, Series SK and SKF: Proximity sensors capacitive and level sensors Analogue sensors capacitive, Series SK1-A: capacitive, Series SK1, DC:

High temperature sensors capacitive

Sensor-amplifiers capacitive, Series SK-HT: Series SV:

Quick Disconnect Wiring Diagram for Y2-series, DC: (Male Receptacle End View of sensor)

Series SNG-K:

Proximity sensors capacitive and level sensors capacitive, Series SK1, AC: Power supply, control units, Series SNG:

Power supply:

Series SV-2VX:

Timer:

Series SV-X2L: Quick Disconnect Wiring Diagram for Y2-series, AC: (Male Receptacle End View of Sensor) Min-Max:

Note: Plastic Units w/Receptacle (2-Pins)

63 CAPACITIVE SENSORS

Core identification Parallel connection Output current The cores are colour-coded in order to prevent This is the maximum current with which the sensor connection errors. may be stressed in continuous operation at its DC-units: output. brown (br/bn) = + The minimum loading is the lowest switching blue (bl/bu) = - capacity for A.C. sensors, and is essential for black (sw/bk) = Output proper functioning. AC-units: Short-circuit protection and black (sw/bk) or brown (br/bn) = L1 overload protection blue (bl/bu) = N The sensors normally contain this protective green/yellow (gr/ge, gn/ye) = earth feature. In the event of overload or short circuit at the output, the output transistor is automatically Output stages switched off. As soon as the malfunction has been corrected, the output stage is reset to normal PNP output: functioning. The load is connected between output and ground. Polarity reversal protection The sensor electronics are protected against Short overl. possible polarity reversal or interchanging of the protect. connection wires. EMC protective circuit Appropriate measures in the supply voltage line Fig. 1.18 ensure that interference voltages are decoupled. Ambient temperature NPN output: This specifies the temperature range in which the Fig. 1.23 The load is connected between output and sensor may be operated without the housing being positive supply voltage. damaged or the sensor electronics failing. Series connection Temperature drift This states the amount by which the sensing distance changes in dependence on temperature. Switching function Short - N.O. contact: the switching output of the sensor overl. protect. is not switched through in its de-activated state. Fig. 1.19

AC: The sensor involved here is a two-wire model, where the load is connected in series with the Fig. 1.16 sensor.

-N.C. contact: the switching output of the sensor is switched through in its de-activated state.

Fig. 1.20 Fig. 1.17

Analogue: The load must be connected between Operating frequency output and ground. The sensor supplies an output The operating frequency is a succession of current proportional to the distance from the Fig. 1.24 object involved. This current produces a periodically repeated activation and de-activation corresponding voltage drop in the load resistor. of the sensors during one second. Measuring Residual ripple method in conformity with DIN 50010. This is the maximum permissible A.C. voltage which may be superimposed on the supply voltage without affecting the function of the sensor.

Fig. 1.22 Fig. 1.14

64 CAPACITIVE SENSORS

CALIBRATION Important: When calibrating capacitive sensors, So that our sensors operate reliably within their Example: the different material properties of the scanned technical specifications, they are set to a greater A granulate in a vessel is to be scanned by a non- product must be taken into consideration. switching gap than the rated switching gaps Sn flush mounted sensor of type SK1-30-M30-P-nb- Capacitive sensors are therefore equipped with specified in the catalogue. If the operator S. The sensor is mounted so that its active surface potentiometers which can be trimmed to adjust increases the switching gap to 4mm over ceramic (free zone at head as described in the catalogue) the sensitivity of the device. plate as described above, the sensor will be projects into the product in the vessel. As depicted operating in an impermissible range (Fig. 1.28). in Fig. 1.30, the sensor must be completely This may lead to the risk of faulty switching in the covered by the product before calibration can sensor due to temperature effects and voltage proceed. transients in the power source. Plastic granulate 2nd example: A liquid e.g. water, is to be scanned through a Fig. 1.25 partition wall by a flush sensor of type SK1-20- M30-P-b-S. The partition wall may only be made of glass or plastic and may have a max. thickness Fig. 1.30 Sensitivity is increased by turning the of 4mm. Basically, to calculate the wall thickness, potentiometer clockwise. the thickness in mm will be 10…20% of the Sensitivity is decreased by turning the switching gap of the sensor but max. 4mm. Turn the potentiometer of the sensor anticlockwise potentiometer anticlockwise. (diminish sensitivity) until the LED and the output signal extinguish. SENSOR TYPE FLUSH Wall thickness max. MOUNTING 4 mm glass or plastic Then turn the potentiometer clockwise (increase sensitivity) until the LED and the output signal Normally, the linear field of flush sensors scans Water switch on again. At this point, make an additional block material for distance. In order to obtain the 1/4 turn (90° turn) in the clockwise direction. This faultless switching of sensors, check the maximum is in case of temperature fluctuations or changes switching gap as described below before putting in the humidity of the product scanned. the device into operation: If a medium has a high 3 r, especially water, the 1st Example: Fig. 1.29 sensor reacts much more sensitively. Therefore it A ceramic plate is to be scanned by an SK-4-10-b is recommended to set the sensor to its minimum device. First set the sensor to the maximum switching gap. switching gap Sn of 4mm (specified in our The face (active surface) of the sensor is bonded catalogue) over steel or hand using the sensor to the glass or plastic wall. The vessel is then filled Mounting torques amplifier (Fig. 1.26). After setting a gap of 4mm, with water until approx. 75% of the active surface To ensure that the sensors are not mechanically move the sensor over the ceramic plate. The result of the sensor is covered (Abb. 1.29). destroyed during installation, make sure that you will be that the scanning distance over the ceramic Then turn the potentiometer of the sensor comply with the following torque figures. plate will decrease to approx. 2mm (Fig. 1.27). anticlockwise (diminish sensitivity) until the LED Housing made of metal, approx.: and the output signal extinguish. steel M5x0,5/V2A 3 Nm Then turn the potentiometer clockwise (increase M8x1/V2A 15 Nm sensitivity) until the LED and the output signal M12x1/V2A 40 Nm switch on again. M12x1/MS 10 Nm Using the calibration process described here M18x1/V2A 60 Nm ensures that the sensor does not detect the wall or M18x1/MS 25 Nm Fig. 1.26 the water residue on the wall. It only switches M30x1,5/M32x1,5/V2A 90 Nm when the liquid has reached the 75% level M30x1,5/M32x1,5/MS 65 Nm ceramic described above. Housing materials The following housing materials are standard for SENSOR TYPE NON-FLUSH the capacitive sensors: MOUNTING PVC (= Polyvinyl Chloride) PTFE (= ) Due to their spherical fields, these capacitive PUR (= ) Fig. 1.27 sensors are suitable for applications as filling level PBT/PET (=Polybutyleneterephtalate/ indicators for plastic granulate or powder. Polyethyleneterephtalate) The distance of 2mm is now the maximum POM (= ) switching gap on the ceramic plate. PA (= Polyamide) Optimum switching is ensure if the sensor scans PC (= Polycarbonate) the ceramic plate under 2 mm and the calibration MS/Cr (= Brass chrome plated) is not exceeded. Al (= Aluminium) V2A (= Stainless steel) Attention: ceramic The housing for the amplifiers and downstream devices are made of Duroplast Type 31 and Makrolon. Thanks to appropriate selection and combination of the housing materials, almost all environmental factors are covered. Fig. 1.28

65 CAPACITIVE SENSORS

SK SERIES MINIATURE CAPACITIVE SENSORS

• Sizes from 4mm DIA and M5 • Stainless steel body • PTFE sensing face • -30 to +80º operating temperature • Protected to IP67 • Sensitivity adjustment via remote amplifier

GENERAL SPECIFICATIONS SN Size Housing Frequency Temp Drift Part No. (Sensing Material Max Hysteresis distance)

0.1-1mm Ø4 A: PTFE ≤20% of SN SK14B

B: V2A 100HZ ≤10% of SN ART 03001

C: POM

0.1-1mm M5 A: PTFE ≤20% of SN SK1M5B

B: V2A 100HZ ≤10% of SN ART 03002

C: POM

0.1-1.5mm M8 A: PTFE ≤20% of SN SK1.5M8B

B: V2A 100HZ ≤10% of SN ART 03005

C: POM

0.1-4mm M12 A: PTFE ≤15% of SN SK4M12B

B: V2A 100HZ ≤10% of SN ART 03009

C: POM

1-8mm M12 A: PTFE ≤15% of SN SK8M12NB

B: V2A 100HZ ≤10% of SN ART 03010

C: POM

66 CAPACITIVE SENSORS

SK SERIES MINIATURE CAPACITIVE SENSORS

• Flat disc type construction • From only 2.5mm thick and M3 • PTFE/stainless steel versions • Protected to IP66 • Sensitivity adjustment via remote amplifier

GENERAL SPECIFICATIONS SN Size Housing Frequency Temp Drift Part No. (Sensing Material Max Hysteresis distance)

0.1-3mm Ø18/2.5 A: PTFE 100HZ ≤15% of SN SK3182.5B

B: V2A ≤15% of SN ART 03011

1-5mm Ø18/4 A: PTFE 100HZ ≤15% of SN SK5184B

B: V2A ≤15% of SN ART 03012

1-10mm Ø22/4 A: PTFE 100HZ ≤15% of SN SK10224B

B: V2A ≤15% of SN ART 03014

1-10mm Ø22/10 A: PTFE 100HZ ≤15% of SN SK102210B

B: MS/CR ≤15% of SN ART 03015

1-15mm Ø30/10 A: PTFE 100HZ ≤15% of SN SK153010B

B: MS/CR ≤15% of SN ART 03017

0 - 0.8mm M3 A: PTFE 100HZ ≤20% of SN SK0.8M3B

B: V2A ≤20% of SN ART 03019

C: POM

67 CAPACITIVE SENSORS

SV AND SNG SERIES SENSOR AMPLIFIERS

• Manual and auto set options • NPN, PNP or relay outputs • Power supply 10-30V DC or 115/230AC • For SK Series Minisensors

GENERAL SPECIFICATIONS Type SV SVD SNG Switch Frequency 100 HZ 0.01 to 100 HZ 10 HZ Power Supply 10 to 35V DC± 15 to 35VDC 115VAC or 230VAC No Load Current (24VDC) ~10mA 15mA 20mA @ 230VAC Sensor Supply 4 to 8 VDC Self Adjusting 4 to 8 VDC Output NPN/PNP 300mA 230VAC 8A SPDT Operating Mode Normally Open/Normally Closed Ambient Temp. -30°C To +70°C Protection IP40 IP20

TECHNICAL DATA Dimensions Wiring Type Output Part Number Type SV NPN N/O SV453015NS ART 04003

N/C SV453015NO ART 04004

PNP N/O SV453015PS ART 04001

N/C SV453015PO ART 04002

Type SVD NPN N/O SVD453015NS ART 04015

Sensing distance: self-calibrating after reset N/C SVD453015NO Poti 1:sensing distance reduction Reset: manual reset by pushbutton ART 04016 (reset will also be performed automatically at start-up or by an active-low signal on the white PNP N/O SVD453015PS connecting lead) ART 04013

N/C SVD453015PO ART 04014

123

Type SNG 456 SNG-230AC-K: 115VAC SPDT SNG115ACK

SENSORCK SNG - 220AC-K ART 04006 20x

OUT 789

10 11 12 230VAC SPDT SNG230ACK ART 04005 22.5

123

456 SNG-230AC-K-T: 115VAC SPDT Timer SNG115ACKT

0.5 2.5 IN t/s 0.05 15

10x SK-Adj. 50ms - 30sec ART 04008 0.5 2.5 t/s 0.05 15 30 SNG - 220AC-K-T 789

10 11 12 230VAC SPDT Timer SNG230ACKT 50ms - 30sec ART 04007 22.5

68 CAPACITIVE SENSORS

SK1 SERIES DC CAPACITIVE SENSORS

• Sensors with built in amplifier • NPN or PNP outputs • Wide range of sizes and sensing distances • Leaded or plug in types • Variety of housing materials

GENERAL SPECIFICATIONS SN Size Housing Frequency Temp. Drift Type Output Part No. (Sensing Material Max. Hysterisis distance) M8 N/O SK115M836PBS ART. 06017 PNP 1.5mm A: PTFE 200HZ ≤20% of SN N/C SK115M836PBO ART. 06018 ±10% B: V2A ≤15% of SN N/O SK115M836NBS ART. 06019 NPN C: POM N/C SK115M836NBO ART. 06020 M8 N/O SK115M846PBSY ART. 06021 PNP 1.5mm A: PTFE 200HZ ≤20% of SN N/C SK115M846PBOY ART. 06022 ±10% B: V2A ≤15% of SN N/O SK115M846NBSY ART. 06023 NPN N/C SK115M846NBOY ART. 06024 M8 N/O SK13M836PNBS ART. 06025 PNP 3mm A: PTFE 200HZ ≤15% of SN N/C SK13M836PNBO ART. 06026 ±10% B: V2A ≤15% of SN N/O SK13M836NNBS ART. 06027 NPN C: POM N/C SK13M836NNBO ART. 06028 M8 N/O SK13M846PNBSY ART. 06029 PNP 3mm A: PTFE 200HZ ≤15% of SN N/C SK13M846PNBOY ART. 06030 ±10% B: V2A ≤15% of SN N/O SK13M846NNBSY ART. 06031 NPN N/C SK13M846NNBOY ART. 06032 M12 N/O SK14M12PBS ART. 06037 PNP 1 to A: PTFE 100HZ ≤15% of SN N/C SK14M12PBO ART. 06038 4mm B: MS/CR ≤15% of SN N/O SK14M12NBS ART. 06039 NPN C: POM N/C SK14M12NBO ART. 06040

69 CAPACITIVE SENSORS

GENERAL SPECIFICATIONS SN Size Housing Frequency Temp. Drift Type Output Part No. (Sensing Material Max Hysterisis distance) M12 N/O SK14M12PBSY ART. 06065 PNP 1 to A: PTFE 100HZ ≤15% of SN N/C SK14M12PBOY ART. 06066 4mm B: MS/CR ≤15% of SN N/O SK14M12NBSY ART. 06067 NPN C: PA N/C SK14M12NBOY ART. 06068 M18 N/O SK18M18PBS ART. 06045 PNP 2 to A: PBT 100HZ ≤15% of SN N/C SK18M18PBO ART. 06046 8mm B: MS/CR ≤15% of SN N/O SK18M18NBS ART. 06047 NPN C: PBT N/C SK18M18NBO ART. 06048 M18 N/O SK18M18PBSY ART. 06069 PNP 2 to A: PBT 100HZ ≤15% of SN N/C SK18M18PBOY ART. 06070 8mm B: MS/CR ≤15% of SN N/O SK18M18NBSY ART. 06071 NPN C: PA N/C SK18M18NBOY ART. 06072 M30 N/O SK120M30PBS ART. 06057 PNP 2 to A: PBT 100HZ ≤10% of SN N/C SK120M30PBO ART. 06058 20mm B: MS/CR ≤15% of SN N/O SK120M30NBS ART. 06059 NPN C: PBT N/C SK120M30NBO ART. 06060 M30 N/O SK120M30PBSY ART. 06073 PNP 2 to A: PBT 100HZ ≤10% of SN N/C SK120M30PBOY ART. 06074 20mm B: MS/CR ≤15% of SN N/O SK120M30NBSY ART. 06075 NPN C: PA N/C SK120M30NBOY ART. 06076 Ø50mm Poti NC/NO O/5 10 10 50 42

PNP/NPN ≤ SW 5.5 2 to10 POM 50HZ 10% of SN PNP N/O LED ge / ye or or SK1255010XBX 0 90˚ 4.2 25mm 8.2 ≤20% of SN NPN N/C ART. 06089

10 adj adj 2m 0 90˚

3.5 active surface d=30mm

70 CAPACITIVE SENSORS

SERIES SK1 AC CAPACITIVE SENSORS

• Wide range of sizes • Various body material • 44 -250 VAC • Protected to IP67

GENERAL SPECIFICATIONS SN Size Housing Max Temp Drift O/P Part No. Material Frequency Hysteresis

M18 connector SK18M18ACBSY 2-8mm A. PVC N/O ≤15% of SN ART.06519 B. PVC 25HZ ≤15% of SN C. PA SK18M18ACBOY N/C ART.06520

M18 SK18M18ACBSMS 2-8mm A. PBT N/O ≤15% of SN ART.06507 B. ms/cr 25HZ ≤15% of SN C. PVC SK18M18ACBOMS N/C ART.06508

M30 connector SK120M30ACBSY 2-20mm A. PVC N/O ≤10% of SN ART.06521 B. PVC 25HZ ≤15% of SN C. PA SK120M30ACBOY N/C ART.06522

M30 SK120M30ACBSMS 2-20mm A. PBT N/O ART.06515 ≤10% of SN B. ms/cr 25HZ ≤15% of SN C. PVC SK120M30ACBOMS N/C ART.06516

ø34 connector SK12534ACBSY 2-25mm A. PVC N/O ART.06523 ≤10% of SN B. PVC 25HZ ≤15% of SN C. PA SK12534ACBOY N/C ART.06524

Please note. Proximity sensors of the SK1-AC series can also be supplied in the housing M32x1,5. The technical data is the same as for the devices in the M30x1.5 housing.

71 CAPACITIVE SENSORS

SERIES SK1 DC CAPACITIVE LEVEL SENSORS

• Wide range of options • Various body materials • 10-35 VDC NPN or PNP • Protected to IP65 or IP67 depending on type

GENERAL SPECIFICATIONS SN Size Housing Max Temp Drift TypeO/P Part No. Material Frequency Hysteresis

M8 N/O SK13M836PNBS A. PTFE PNP ART.06025 ≤15% of SN N/C SK13M836PNBO 3mm B. V2A ART.06026 200HZ N/O SK13M836NNBS C. Pom ≤15% of SN NPN ART.06027 N/C SK13M836NNBO ART.06028 M8 connector N/O SK13M846PNBSY A. PTFE PNP ART.06029 ≤15% of SN N/C SK13M846PNBOY 3mm B. V2A ART.06030 200HZ N/O SK13M846NNBSY ≤15% of SN NPN ART.06031 N/C SK13M846NNBOY ART.06032 M12 N/O SK18M12PNBSMS A. PTFE PNP ART.07005 ≤15% of SN N/C SK18M12PNBOMS 1-8mm B. ms/cr ART.07006 100HZ N/O SK18M12NNBSMS C. Pom ≤10% of SN NPN ART.07007 N/C SK18M12NNBOMS ART.07008 M12 connector N/O SK18M12PNBSMSY A. PTFE PNP ART.07041 ≤15% of SN N/C SK18M12PNBOMSY 1-8mm B. ms/cr ART.07042 100HZ N/O SK18M12NNBSMSY C. PA ≤10% of SN NPN ART.07043 N/C SK18M12NNBOMSY ART.07044 M18 N/O SK115M18PNBSMS A. PTFE PNP ART.07017 ≤15% of SN N/C SK115M18PNBOMS 2-15mm B. ms/cr ART.07018 100HZ N/O SK115M18NNBSMS C. Pom ≤10% of SN NPN ART.07019 N/C SK115M18NNBOMS ART.07020

OTHER OPTIONS AVAILABLE

72 CAPACITIVE SENSORS

SERIES SK1 DC CAPACITIVE LEVEL SENSORS

• Wide range of options • Various body materials • 10-35 VDC NPN or PNP • Protected to IP65 or IP67 depending on type

GENERAL SPECIFICATIONS SN Size Housing Max Temp Drift Type O/P Part No. Material Frequency Hysteresis M18 connector N/O SK115M18PNBSMSY A. PTFE PNP ART.07049 ≤15% of SN N/C SK115M18PNBOMSY 2-15mm B. ms/cr ART.0750 100HZ N/O SK115M18NNBSMSY C. PA ≤10% of SN NPN ART.07051 N/C SK115M18NNBOMSY ART.07052 M18 PTFE N/O SK115M18PNBSPTFE A. PTFE PNP ART.07021 ≤15% of SN N/C SK115M18PNBOPTFE 2-15mm B. PTFE ART.07022 100HZ N/O SK115M18NNBSPTFE C. PTFE ≤10% of SN NPN ART.07023 N/C SK115M18NNBOPTFE ART.07024 M30 N/O SK130M30PNBSMS A. PTFE PNP ART.07029 ≤10% of SN N/C SK130M30PNBOMS 2-30mm B. ms/cr ART.07030 100HZ N/O SK130M30NNBSMS C. PBT ≤10% of SN NPN ART.07031 N/C SK130M30NNBOMS ART.07032 M30 connector N/O SK130M30PNBSMSY A. PTFE PNP ART.07057 ≤10% of SN N/C SK130M30PNBOMSY 2-30mm B. ms/cr ART.07058 100HZ N/O SK130M30NNBSMSY C. PA ≤10% of SN NPN ART.07059 N/C SK130M30NNBOMSY ART.07060 M30 PTFE N/O SK130M30PNBSPTFE A. PTFE PNP ART.07033 ≤10% of SN N/C SK130M30PNBOPTFE 2-30mm B. PTFE ART.07034 100HZ N/O SK130M30NNBSPTFE C. PTFE ≤10% of SN NPN ART.07035 N/C SK130M30NNBOPTFE ART.07036 MI8 connector PTFE N/O SK130M30PNBSY A. PVC PNP ART.07053 ≤10% of SN N/C SK130M30PNBOY 2-30mm B. PVC ART.07054 100HZ N/O SK130M30NNBSY C. PA ≤10% of SN NPN ART.07055 N/C SK130M30NNBOY ART.06524

73 CAPACITIVE SENSORS

SERIES SKI AC CAPACITIVE LEVEL SENSORS

• Wide variety of sizes • Various body materials • 44 - 250v AC • Protected to IP 67

GENERAL SPECIFICATIONS SN Size Housing Max Temp Drift O/PPart No. Material Frequency Hysteresis

M18 Connector SK115M18ACNBSY A. PVC ≤15% of SN N/O ART.07513 2-15mm B. PVC 25HZ ≤10% of SN

C. PA SK115M18ACNBOY N/C ART.07514

M18 SK115M18ACNBSMS A. PTFE ≤15% of SN N/O ART.07503 2-15mm B. ms/cr 25HZ ≤10% of SN

C. Pom SK115M18ACNBOMS N/C ART.07504

M18 PTFE SK115M18ACNBSPFTE A. PTFE ≤15% of SN N/O ART.07505 2-15mm B. PTFE 25HZ ≤10% of SN

C. PTFE SK115M18ACNBOPTFE N/C ART.07506

M30 SK125M30ACNBSMS A. PTFE ≤10% of SN N/O ART.07509 2-25mm B. ms/cr 25HZ ≤10% of SN

C. Pom SK125M30ACNBOMS N/C ART.07510

M30 PTFE SK125M30ACNBSPTFE A. PTFE ≤10% of SN N/O ART.07511 2-25mm B. PTFE 25HZ ≤10% of SN C. PTFE SK125M30ACNBOPTFE N/C ART.07512 OTHER OPTIONS AVAILABLE

Please note. Level sensors of the SK1-AC series can also be supplied in the M32x1.5 housing. The technical data are the same as for the devices in the M30x1,5 housing.

74 CAPACITIVE SENSORS

SERIES SKI HT HIGH TEMP LEVEL SENSOR

• -30 To +125ºc • M18 or 3/8 Whitworth Mountings • Wireable VIA Screw Terminals • Protection - Probe IP68 • Protection Terminal Housing IP67

GENERAL SPECIFICATIONS Temp Size Housing Max Type O/P Part No. Material Frequency N/O SK1HT125FSJM18PSKL A. AL PNP ART.07061 N/C SK1HT125FSJM18POKL ≤125ºC B. V2A 5HZ ART.07062 N/O SK1HT125FSJM18NSKL C. PTFE NPN ART.07063 N/C SK1HT125FSJM18NOKL ART.07064

N/O SK1HT125FSJR38PSKL A. AL PNP ART.07065 N/C SK1HT125FSJR38POKL ≤125ºC B. V2A 5HZ ART.07066 N/O SK1HT125FSJR38NSKL C. PTFE NPN ART.07067 N/C SK1HT125FSJR38NOKL ART.07068

SW41 MAM18M3010V2A 5 A. AL M30 ART.90092 MAM18M3210V2A C 10 B. V2A M32 ART.90093 A MAM18R110V2A M18x1 C. PTFE R1” B ART.90109

Sensor Application Order key. This capacitive level sensor can detect liquids and SK1 = Capacitive sensor with integrated other pourable products, even when installed in High- amplifier Temperature surroundings. A sensor of such caliber HT125 = High-temperature sensor up to - can be used where there is a difficulty in controlling 30… +125ºc product flows or levels. Even when heavy product build-up occurs with substances such as molasses, FS = Fill level honey, silicone, etc; the product remains detectable J = Connection head construction even if there is an adhering medium between product R3/8 = thread diameter 3/8” British presence and non-presence. This adjustable non-flush Standard Whitworth thread in sensor is very versatile for its vast applications accordance with DIN 2999 especially with powders and liquid sensing. Application Examples M18 = [mm], M=thread diameter M18 x 1 KL = Terminal connection Level sensing of nearly all products. - Viscous medium like honey, glue, chocolate, bread Terminal connection. dough, oil, ice cream, silicone - grainy materials like plastic granular, cereal, pellets, coffee beans - powder like cocoa and coffee powder, washing powder - liquids like water, blood, milk, beer, etc. Adjustment The device is adjusted using the adjuster potentiometer. Note that a mean value between the switch-on and switch-off points of the tripped sensor must be set. In individual cases, when high temperature dynamic response and very adhesive media are involved, a slight readjustment may be necessary.

75 CAPACITIVE SENSORS

SK1 SERIES LABEL SENSOR

• Detection of transparent labels • Touch to Teach • Norm open/Norm closed programmable • LED indication X3 • Fast response speed • Also for detection of glue traces and cracks

GENERAL SPECIFICATIONS Model SK1S4754432 PXY1 SK1S6754432 PXY1 SK1S4754432 NXY1 SK1S6754432 NXY1 Slot width (h) 0.4mm 0.6mm Material thickness ≤0.35mm 0.35mm to 0.55mm Tape speed <500m/min Max frequency ≤2KHz Label length 2mm min Repeat accuracy 0.05mm (23ºC ± 5ºC) Supply voltage 10 - 30 VDC Output NPN or PNP Operating mode Norm open/Norm closed programmable Output current 200mA max Volt drop 2.5Vmax

DIMENSIONS

CONNECTION DIAGRAMS

ORDERING GUIDE Type Number Description Output SK154754432PXY1 Label sensor 0 - 4mm GAP PNP SK154754432NXY1 Label sensor 0 - 4mm GAP NPN SK156754432PXY1 Label sensor 0 - 6mm GAP PNP SK156754432NXY1 Label sensor 0 - 6mm GAP NPN

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