Capacitive point level switches for solids

 

 

Capacitive point level switches for solids

Nivector FTC968

from $218CAD
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    • No moving parts

    • Maintenance-free operation

    • No contact with product when using protector

     

    Specs at a glance

    Function Level switch
    Product Bulk solids ≤ 10 mm grain size
    Product dielectric constant εr ≥ 1.6
    Product temperature –20 to +80 °C (–4 to +176 °F)
    Probe length 81 mm (3.19")
    Process pressure –1 to +6 bar (–15 to +87 psi)
    Product / VersionPrice / pcs. in CADOrder code
    Nivotester FTC9681 to 34 to 1011+
    Point level switch, capacitive. Application: powder, bulk solids. Process connection: G1. Immersion: 20-71mm. Output: 2-wire, 21-253VAC. Material isolation/housing: PC, IP65.
    • No set-up required.
    • No moving parts.
    248231218 918098-0000
    Point level switch, capacitive. Application: powder, bulk solids. Process connection: G1. Immersion: 20-71mm. Output: 3-wire PNP, 10-55VDC. Material isolation/housing: PC, IP65.
    • No set-up required.
    • No moving parts.
    248231218 918098-0140
    Note that models FTC968Z come without CSA approval

    Accessory

    Product / VersionPrice / pcs. in CADOrder code
    Protector for Nivector FTC968 Mounting adapter, thread G1-1/2. Material: PBT-GF, FDA listed. Temp.: -20...+80oC, immersion: 81mm.
    • Protection against abrasion.
    • No solids flow at Nivector-exchange.
    Verwendung: FTC968.
    70.63 71329077

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

  • Application

    The Nivector capacitive point level switch is suitable for all kinds of powdered and fine-grained solids (e.g. plastic granulates, washing agents and animal feed). Because of its materials of construction, Nivector is also suitable for use with foodstuffs such as grain, sugar, herbs and spices or semolina.

    Function

    The face of the Nivector unit acts as a sensor. If the solids come into contact with the front face, then the electronics change the switching mode. The Nivector can be switched to either min or max fail-safe mode and a LED indicates its switching status. A screen electrode prevents interference through the container walls or lateral solids build-up.

    Application Example

    Capacitive level switches for solids - Application example

    The Nivector FTC968 is a compact point level switch, to which a miniature contactor, a solenoid valve or a programmable logic controller (PLC) may be directly connected.

  • Technical data

    Output
    Safety circuit Selectable minimum or maximum
    Connectable load

    AC:
    short duration (40 ms): max. 1.5 A max. 375 VA at 253 V or max. 31.5 VA at 21 V (not protected against short circuit);
    continuous: max. 87 VA at 253 V, max. 7.4 VA at 21 V, min. 2.5 VA at 253 V (10 mA), min. 0.5 VA at 21 V (20 mA) voltage drop max. 12 V, leakage current max. 4 mA

    DC:
    short duration (50 ms): max. 0.5 A, max. 55 V (clocked overload and short-circuit protection);
    continuous: max. 350 mA, residual voltage <3 V, leakage current <100 µA

    Switching time Approx. 0.2 s covered/uncovered
    Power supply
    AC 21 to 253 V, 50/60 Hz
    DC 10 to 55 V
    Operating conditions
    Ambient temperature –20 to +60 °C (–4 to +140 °F)
    Material temperature

    –20 to + 80 °C (–4 to +176 °F)

    Operating temperature –20 to +80 °C (–4 to +176 °F)
    Storage temperature –25 to +85 °C (–13 to +185 °F)
    Operating pressure –1 to +6 bar (–14.5 to +87 psi)
    Grain size Up to 10 mm (0.4")
    Relative dielectric constant of measured material Min. 1.6
    Ingress Protection

    IP 65/IP 67 according to Standard EN 60529

    EMC Interference Emission to EN 61326, Electrical Equipment Class B; Interference Immunity to EN 61326
    Mechanical construction
    Process connections

    FTC968: Thread G1 A with two nuts, thread R 1 (DIN 2999)

    Protector: Thread G½ A

    Electrical connection Screwed terminals for max. 1.5 mm² wires in cable entry PG 11 (can be rotated as required), for 6 to 8 mm (0.24 to 0.31”) cable diameter
    Materials in contact
    with the material
    being measured

    Housing made from blue PC, lock nuts made from black PA

    Other materials: Connection area: transparent PC

    User interface
    Display in connection area Red LED for display of switching mode, visible from the outside
    Operation in connection area Rotary switch for switch-over from minimum to maximum safety mode, potentiometer for switching sensitivity
    Approvals
    Ex approval FTC968Z: ATEX II 1/3 D 

    Dimensions (in mm) and materials

    FTC968

    Capacitive level switches for solids - Dimensions

    Materials in contact with the material being measured: housing made from blue PC, lock nuts made from black PA

    Other materials: Connection area: transparent PC

     

    Installation according to instruction manual

    Optional protector

    The optional protector has a G1½" thread and protects the Nivector from damage by particularly abrasive or coarse material. It allows removal of the Nivector from a full silo for function testing.

    Electrical connection

    Capacitive level switches for solids - Connecting

    a) AC version

    b) DC version (PNP)

  • More documents for FTC968