Capacitive point level switch for bulk solids

Capacitive point level switch for bulk solids

Minicap FTC260 / FTC262

from €169.-
Need help?

Info-Hotline
+41 61 715 81 00

    • No calibration required

    • Active build-up compensation

    • Maintenance-free

    • Easily shortened rope version

    Specs at a glance

    Function Level switch
    Product Bulk solids. Diameter ≤30 mm (1.18").
    Process pressure –1 to +25 bar (–14.5 to +363 psi)
    Product dielectric constant εr ≥ 1.6
    Product temperature

    FTC260: –40 to +120 °C (–40 to +248°F)

    FTC262/Ex: –40 to +70 °C (–40 to +158°F)

    Probe length

    Rod/FTC260: 140 mm (5.51")

    Rope/FTC262: 1.5; 2.5 and 6 m (4.9; 8.2 and 19.69 ft)

    Minicap FTC260 : Short probe version

    Product / VersionPrice / pcs. in EUROrder code
    Probe lengthSwitch OutputApproval1 to 34 to 1011+
    140mm3-wire PNP 10.8-45VDCNon-hazardous area192.-178.-169.- FTC260-AA2D1
    ATEX II 1/3D260.-241.-228.- FTC260-BA2J1
    Relay 20-253VAC/20-55VDCNon-hazardous area216.-201.-190.- FTC260-AA4D1
    ATEX II 1/3D284.-264.-250.- FTC260-BA4J1

    Minicap FTC262 : Extension cable versions

    Product / VersionPrice / pcs. in EUROrder code
    Probe LengthSwitch OutputApproval1 to 34 to 1011+
    1500mm/59in L, steel HD-PE insulated3-wire PNP 10.8-45VDCNon-hazardous area336.-313.-296.- FTC262-AA32D1
    ATEX II 1/3D402.-374.-354.- FTC262-BA32J1
    Relay 20-253VAC/20-55VDCNon-hazardous area360.-335.-317.- FTC262-AA34D1
    ATEX II 1/3D426.-397.-375.- FTC262-BA34J1
    2500mm/98in L, steel HD-PE insulated3-wire PNP 10.8-45VDCNon-hazardous area348.-323.-306.- FTC262-AA42D1
    ATEX II 1/3D414.-385.-364.- FTC262-BA42J1
    Relay 20-253VAC/20-55VDCNon-hazardous area372.-346.-327.- FTC262-AA44D1
    ATEX II 1/3D438.-407.-385.- FTC262-BA44J1
    6000mm/236in L, steel HD-PE insulated3-wire PNP 10.8-45VDCNon-hazardous area384.-357.-338.- FTC262-AA62D1
    ATEX II 1/3D450.-418.-396.- FTC262-BA62J1
    Relay 20-253VAC/20-55VDCNon-hazardous area408.-379.-359.- FTC262-AA64D1
    ATEX II 1/3D474.-440.-417.- FTC262-BA64J1

    Accessories

    Product / VersionPrice / pcs. in EUROrder code
    Cover F14 PE, transparent PA Sight glass: Polycarbonat PA.34.42 943201-1001
    Sleeve adapter R1-1/2 > R1, PPS Usage: FTC260. Thread type: EN10226/ISO7. Material: PPS.6.96 943215-1001
    Sleeve adapter G1-1/2 > R1, PPS Usage: FTC260. Thread type: EN10226/ISO7. Material: PPS.6.96 943215-1021
    Rope shortening kit FTC262 Usage: FTC262.26.37 52005918

    Prices valid until 30.11.2017 in EUR per unit (not including shipping and applicable sales tax). See
    Endress+Hauser Terms and Conditions

    People who bought this also watched

  • Application 

    The Minicap is suitable for the level detection of powdery and fine-grain bulk solids, such as grain, flour, powdered milk, mixed feed, cement, chalk or gypsum and is suitable for use in dust explosive areas (ATEX II 1/3 D). The Minicap has two output options:

    • Relay output (SPDT) or
    • PNP output

    Function

    The Minicap is an electronic switch. When the limit is exceeded or the load falls below the limit, a switching signal is output. A switch housing or signal output device (e.g. lights, horns, programmable logic sequencer, stored program control, etc.) can be connected to the Minicap. It has an in-built switch-over facility for minimum/ maximum safety. It detects the formation of deposits on the probe, and compensates for the effects of this so that the switching point is maintained. The Minicap comes with factory settings.

    Other sensitivity adjustments can be made on the housing. 

    Application Example

    Capacitive level switch for bulk solids - Application example

    Level detection in silos with bulk goods. The silos can be made of various materials (e.g. metal, plastic, concrete), as these do not affect measurement.

    The filling stream should not be directed onto the probe.

     

    a) load

    Applications

    Examples ρ in g/l (approx.) εr (approx.) Function
    Grain, seed, legumes and their products
    Rice 770 3.0 yes
    Cornstarch (packed) 680 2.6 yes
    Flour (wheat) 580 2.4 yes
    Corn grist 500 2.1 yes
    Sunflower seeds 380 1.9 yes
    Noodles 370 1.9 yes
    Bran (wheat) 250 1.7 yes
    Popcorn 30 1.1 no
    Minerals, inorganic materials
    Cement 1050 2.2 yes
    Plaster 730 1.8 yes
    Chalk (packed) 540 1.6 (yes)
    Chalk (loose) 360 1.4 no
    Plastics
    ABS granulate 630 1.7 yes
    PA granulate 620 1.7 yes
    PE granulate 560 1.5 no
    PVC powder 550 1.4 no
    PU dust 80 1.1 no

    Grey background:
    Application limits of Minicap exceeded.

     

    In general:

    If the dielectric constant of the solid is not known, then the density of the solid is a deciding factor. Under normal conditions the Minicap functions in foodstuffs with a density of 250 g/l and above or in plastic or mineral materials with a density of 600 g/l and above.

  • Technical data FTC260

    Output
    Output signal

    DC-PNP: Imax 200 mA, secure against overload and shorting, residual voltage at transistor at Imax < 2.9 V

    AC/DC-SPDT:
    AC: Imax = 4 A, Imin = 1 mA, Umin = 6 V, Umax = 253 V, Pmax = 1000 VA
    DC: Imax 4 A up to 30 V, Imax 0.2 A up to 253 V

    Malfunction signal

    DC-PNP: < 100 µA

    AC/DC-SPDT: relay de-energised

    Switching delay 0.5 s upon release/covering
    Power supply
    Supply voltage DC-PNP: 10.8 to 45 V DC, short pulse up to 55 V DC, current input 30 mA (max.), reverse polarity protection AC/DC-SPDT (relay contact): 20 to 253 V AC or 20 to 55 V DC, max. current input: 130 mA
    Terminal compartment Stranded wires max. 1.5 mm2 in end sleeves, Electric wire max. 2.5 mm2
    Accuracy
    Long-term drift Horizontal ±3 mm (±0.12"), vertical ±6 mm (±0.24")
    Hysteresis Horizontal 4 mm (0.16"), vertical 7 mm (0.28")
    Switchpoint Horizontal at centre of probe –5 mm (–0.2"), vertical 40 mm (1.58") above probe tip
    Operating conditions
    Ambient temperature –40 to +80 °C (–40 to +176°F)
    (to +60 °C/140 °F Dust Ex)
    Climate class As per EN 60068 part 2-38
    Protection system IP 66
    EMC Interference Emission to EN 61326, Electrical Equipment Class B; Interference Immunity to EN 61326, Annex A (Industrial) and NAMUR Recommendation NE 21 (EMC)
    Process temperature –40 to +130 °C (–40 to +266 °F) (to +80 °C/176 °F Dust Ex)
    Process pressure –1.0 to +25 bar (–14 to +363 psi)
    Material
     Wetted parts Probe: PPS GF40; FDA: FCN No. 000040
    General
    Medium Bulk solids with grain size up to 30 mm (1.18"), relative dielectric constant εr ≥ 1.6
    Flexural strength 1400 N (at tip of probe)
    Process connection R1 DIN 2999/ISO 7
    Adapter Inner thread R1 DIN 2999 ISO 7: for R 1½ DIN 2999/ISO 7 for G1½ DIN ISO 228
    Approvals
    Ex approval ATEX II 1/3 D
    WHG approval Overspill protection to §19 WHG (Germany)
    Sensor material is FDA registered

    Technical data FTC262

    Output
    Output signal

    DC-PNP: Imax 200 mA, secure against overload and shorting, residual voltage at transistor at Imax < 2.9 V

    AC/DC-SPDT:
    AC: Imax = 4 A, Imin = 1 mA, Umin = 6 V, Umax = 253 V, Pmax = 1000 VA
    DC: Imax 4 A up to 30 V, Imax 0.2 A up to 253 V

    Malfunction signal

    DC-PNP: < 100 µA

    AC/DC-SPDT: relay de-energised

    Switching delay 0.8 s upon release/covering
    Power supply
    Supply voltage

    DC-PNP: 10.8 to 45 V DC, short pulse up to 55 V DC, current input 30 mA (max.), reverse polarity protection

    AC/DC-SPDT (relay contact): 20 to 253 V AC or 20 to 55 V DC, max. current input: 130 mA

    Terminal compartment Stranded wires max. 1.5 mm2 in end sleeves, Electric wire max. 2.5 mm2
    Accuracy
    Longterm drift Vertical ±6 mm (0.24")
    Hysteresis Vertical 5 mm (0.2")
    Switch point Vertical 35 mm (1.38") above probe tip
    Operating conditions
    Process temperature –40 to +80 °C (–40 to +176 °F)
    Process pressure –1.0 to +6 bar (–14.5 to +87 psi)
    Ambient temperature –40 to +80 °C (–40 to +176°F)
    (to +60 °C/140 °F Dust Ex)
    Climate class As per EN 60068 part 2-38
    Protection system IP 66
    EMC Interference Emission to EN 61326, Electrical Equipment Class B; Interference Immunity to EN 61326, Annex A (Industrial) and NAMUR Recommendation NE 21 (EMC)
    Material
     Wetted parts  – Probe: PPS GF40; FDA: FCN No. 000040
    – Probe rope: PE-HD
    – Probe rope seal: VMQ; FDA: 21 CFR 177.2600
    General
    Medium Bulk solids, grain size up to 30 mm (≥1.18"), relative dielectric constant εr ≥ 1.6
    Tensile strength Max. 3000 N up to 40 °C (104 °F)
    Process connection R1½ DIN 2999/ISO 7
    Length reduction Shortening kit
    Approvals
    Ex approval ATEX II 1/3 D EEx ia IIB T6  

    Dimensions (in mm)

    FTC260

    Capacitive level switch for bulk solids - Dimensions of the short version

    a) Wall thickness: 5 mm

    FTC262

    Capacitive level switch for bulk solids - Dimensions of the cable version

    Aluminum housing, IP66

    Polyester PBT-FR housing, IP66

    Top view, FTC260 / FTC262

    Adapter for FTC260

    Electrical connection

    AC/DC-SPDT

    Capacitive level switch for bulk solids - Connecting the SPDT relay version

    Minicap FTC260/262 with AC or DC connection and relay output (SPDT)

    F1: fine-wire fuse for protection of relay contact depending on the connected load

    F2: fine-wire fuse, 500 mA

    M:  earth connection to silo or to metal parts of silo

    E:   earth

    DC-PNP

    Capacitive level switch for bulk solids - Connecting the DC-PNP version

    Minicap FTC260/262 with PNP DC connection:

    F:  fine-wire fuse 500 mA

    R:  connected load, e.g. stored programme control, programmable logic sequencer, relay

    M: earth connection to silo or to metal parts of silo

    E:  earth

     

    • The Minicap system is protected against reverse polarity.
    • If the connections are reversed, then the green light goes out.
    • No grounding lines (PE) or potential matching lines (PAL) are required with FTC260.
    • The PAL line has to be connected according to local Ex-guidelines
  • More documents for FTC260
    More documents for FTC262