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Panasonic Industry / Automation Controls

Electrostatic Sensor EF-S1

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  • Basic Information

  • Applications

  • Order guide

  • Option

  • Specifications

  • Dimensions

  • Wiring/ Connection

  • Sensing characteristics

  • Cautions For Use

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Basic Information

Continuously check invisible static electricity in lines

    Features

    Constantly check static in lines!

    Constantly check static in lines!

    With this inline-capable surface potential sensor, you can constantly monitor static that will be generated in various places in a process while running a line and, if there is any abnormality, you can respond to it immediately. It will clarify damage or failure caused by static which has been hard to find out before, allowing the maintenance of stable quality.

    Reduce the inspection man-hours for the ionizer

    You can see the neutralizing effect of the ionizer in real time, so it is possible to objectively verify damage on the ionizer or time to replace expendable parts. By quickly finding decrease in the effect of the ionizer, it will relieve concerns like “Is it really neutralizing?”, and reduce the man-hours required for inspection and verification.

    New proposal for electrostatic measurement

    Unlike the off-line measurement with a handheld instrument, it can be installed in a line in the same way as photoelectric sensors, thus reduces variation in measurements caused by differences in workers, measurement sites and distance to help improve reliability. In addition, with its variety of features such as the window comparator output that outputs a signal when the measured value exceeds the measurement range, and analog output essential for data collection and analysis, it enables line control for anti-static measures similar to the beam sensor (photoelectric sensor).

    Easy-to-read 2-color dual display

    The controller is equipped with a red and a green display. Current values and threshold values can be viewed at a glance.

    Easy-to-read 2-color dual display

    Suitable for measuring under strict conditions

    High-precision design with a repeatability precision of ±0.3 % F.S. Even very slight differences in potential will not be skipped over.

    Lightweight and compact for easy setup in any location

    Lightweight and compact for easy setup in any location

    The sensor head only weighs 90 g. Installation can be carried out easily using just a bracket so that it is suitable for use in a wide variety of applications.
    In addition, power consumption is low so the devices can be utilized without concerns for high running costs.

    A variety of functions for a wide range of applications

    A variety of functions for a wide range of applications

    A large number of functions for a variety of applications are available, including 0-adjust, hysteresis setting, window comparator output, and +potential / -potential peak hold (external timing input) measurement.

    Easy data management with analog output

    Easy data management with analog output

    Data logger can collect and analyze data, which will be helpful when reviewing the installation angle of the ionizer and the number of ionizers.

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    用途

    Surface potential measurement when releasing BG sheets

    BGシート剥離時の表面電位測定

    Surface potential measurement during chip release electrification

    チップ剥離帯電時の表面電位測定

    Surface potential measurement during loading and unloading

    ローダ　アンローダ時の表面電位測定

    Measurement of lead frame charge removal

    リードフレーム除電状況の測定

    Measurement of frictional electrification of printed circuit boards

    基板　摩擦帯電の測定

    Measurement of frictional electrification of LCD modules

    LCDモジュール　摩擦帯電の測定

    ------------------------------ Tab3 showing ------------------------------

    Order guide

    Sensor head

    AppearanceModel No.Measurement range (Note)

    		EF-S1HS8.0 to 20.5 mm 0.315 to 0.807 in (±1 kV range mode)
    21.0 to 100 mm 0.827 to 3.937 in (±2 kV range mode)

    Note : Set the distance between the sensor head and the sensing object by using the controller before use.

    Controller

    AppearanceModel No.Output type

    		EF-S1CNPN open-collector transistor
    Analog output
    ・Output voltage: 1 to 5 V

    Accessory

    CN-EP1 (Connector for controller)
    5 pcs. per set (Note)

    Note: One connector is attached to each sensor head as standard equipment.

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    Option

    DesignationAppearanceModel No.Description
    Controller
    mounting
    bracket

    		MS-DIN-2Mounting bracket for controller
    End plates

    		MS-DIN-EIf the controller moves because of the way it has been installed to the DIN rail, use clamps at both sides to secure the controller so that it will not move.
    [ 2 pcs. per set ]

    ------------------------------ Tab5 showing ------------------------------

    Specifications

    Sensor head

    Model No.EF-S1HS
    Applicable controllerEF-S1C
    Measurement range
    (Measurement range) (Note 2, 3, 4)    		8.0 to 20.5 mm 0.315 to 0.807 in (±1 kV range mode)
    21.0 to 100 mm 0.827 to 3.937 in (±2 kV range mode)
    Power indicatorGreen LED
    Ambient temperature0 to +40 ℃ +0 to +104 ℉ (No dew condensation),
    Storage: -20 to +60 ℃ -4 to +140 ℉
    Ambient humidity35 to 65 % RH, Storage: 35 to 85 % RH
    Vibration resistance10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude in X, Y and Z directions for two hours each
    Shock resistance98 m/s2 acceleration (10 G approx.) in X, Y and Z directions five times each
    MaterialEnclosure: Heat resistant ABS, Measuring part cover: Stainless steel (SUS304)
    Cable0.09 mm2, 3-core shielded cable, 5 m 16.404 ft long
    (with controller connector) (Note 5)
    WeightNet weight: 90 g approx., Gross weight: 130 g approx.

    Notes:
    1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20 ℃ +68 ℉.
    2) Set the distance between the sensor head and the sensing object by using the controller before use.
    3) The measurement range mode is switched automatically when the measurement range setting is changed at the controller.
    4) Measurement areas will vary depending on the measurement distances.
    5) Cable cannot be extended.

    Controller

    Model No.EF-S1C
    Applicable sensor headEF-S1HS
    Supply voltage24V DC ± 10%
    Current consumptionNormal operation: 50 mA or less, ECO mode: 40 mA or less
    Display range
    (Measurement range) (Note 2)    		-1,000 to 1,000 (±1 kV range mode)
    -1,999 to 1,999 (±2 kV range mode)
    Repeatability±0.3 % F.S.(Note 3)
    Linearity±0.5 % F.S. (Note 3, 4, 6)
    Temperature characteristics0.05 % F.S./℃ (Note 3, 5)
    Judgment outputs
    (OUT 1, OUT 2)    		NPN open-collector transistor
    ・Maximum sink current: 100 mA
    ・Applied voltage: 30 V DC or less (between judgment output and 0 V)
    ・Residual voltage: 1.5 V or less (at 100 mA sink current)
     Response time10 ms, 20 ms (STD), 100 ms, 200 ms, 400 ms, 800 ms switching method
    Output operationOUT1: +potential measurement output or window comparator output
    OUT2: -potential measurement output or error output
    Short-circuit protectionIncorporated
    Analog output (Note 6)Analog voltage
    ・Output voltage: 1 to 5 V
    ・Output impedance: 100 Ω approx.
     Response time20 ms, 30 ms (STD), 110 ms, 210 ms, 410 ms, 810 ms switching method
    Timing input / 0-adjust inputNPN non-contact input
    ・Signal condition
    High: +V or open,
    Low: 0 to +2 V (source current 0.5 mA or less)
    ・Input impedance: 10 kΩ approx.
    Ambient temperature-10 to +55 ℃ +14 to +131 ℉ (No dew condensation or icing allowed),
    Storage: -20 to +70 ℃ - 4 to +158 ℉
    Ambient humidity35 to 85 % RH, Storage: 35 to 85 % RH
    MaterialEnclosure: Heat-resistant ABS, Case cover: Polycarbonate, Mode key: Acrylic, Jog switch: Heat-resistant ABS
    Cable0.2 mm2 6-core cabtyre cable, 2 m 6.562 ft long
    Cable extension (Note 7)Extension up to total 10 m 32.808 ft is possible with 0.3 mm2, or more, cable.
    WeightNet weight: 65 g approx., Gross weight: 110 g approx.

    Notes:
    1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20 ℃ +68 ℉.
    2) The display range (measurement range) is switched automatically when the measurement distance setting is changed at the controller.
    3) F.S. is 2,000 V (-1,000 V to 1,000 V) for the ±1 kV range mode and 4,000 V (-2,000 V to 2,000 V) for the ±2 kV range mode.
    4) The values given are for when the measured potential is ±200 V or less in the ±1 kV range mode and ±400 V or less in the ±2 kV range mode. If the measured potentials are outside these values, the values will be equal to the displayed values ±5 %.
    5) The values given are for when the measured potential is ±200 V or less in the ±1 kV range mode and ±400 V or less in the ±2 kV range mode. If the measured potentials are outside these values, the values will be 0.5 %/℃ of the displayed values.
    6) In order to satisfy the linearity specifications for the analog output, do not use the judgment output.
    7) This product is CE compliant and complies with EMC directives. EN 61000-6-2 is the applicable standard that covers immunities relating to use of this product, but in order to comply with this standard, the following conditions must be satisfied.
    - The controller must be connected to the power supply at a distance of less than 10 m 32.808 ft.
    - Install the ferrite core (accessory) to the cable approximately 30 mm 1.181 in away from the sensor head (EF-S1HS).

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    Dimensions

    Unit: mm in

    EF-S1HS

    Sensor head

    EF-S1HS

    EF-S1C

    Controller

    EF-S1C

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    I/O Circuit and Wiring diagrams

    EF-S1C[NPN output]

    I/O circuit diagram

    Notes:

    1)If using together with an ionizer, the 0 V line of this product should be connected to the ionizer ground. In addition, the metal parts of the sensor head (EF-S1HS) are connected to the 0 V line, so it should be insulated during installation.

    2)In case of using the analog voltage output, connect a device having a input impedance of 1MΩ or more. Further, the analog voltage output does not incorporate a short-circuit protection circuit.
    Do not connect it directly to a power supply or a capacitive load.

    *1

    Symbols・・・

    D : Reverse supply polarity protection diode
    ZD1, ZD2 : Surge absorption zener diode
    Tr1, Tr2 : NPN output transistor

    Wiring diagram

    <Points to note when using analog output>
    Because the 0 V lines for judgment output and analog voltage output are common, the analog voltage output may vary depending on the load current. In order to satisfy the linearity specifications for the analog voltage output, do not use the judgment output.

    * Connector for controller (CN-EP1) pin position

    Terminal No.Mating cable
    (1)+V: Brown
    (2)0 V: Blue
    (3)Sensor output: Orange / Violet
    (4)Shield wire

     

    回路・接続

    入・出力回路図

    入・出力回路図

    (注1):イオナイザと組み合わせて使用する場合は、本製品の0Vとイオナイザのアースを共通にしてください。また、センサヘッド（EF-S1HS）の金属部は、0Vになっていますので、取り付けの際には絶縁などにご配慮ください。

    (注2):アナログ電圧出力（灰）を使用する場合は、入力インピーダンス1MΩ以上の接続機器を使用してください。また、アナログ電圧出力には、短絡保護回路が装備されていません。電源あるいは容量負荷を直接接続しないでください。

    ※ 1

    ※ 1

    記号

    接続図

    接続図

    <アナログ電圧出力使用時の注意事項>
    判定出力とアナログ電圧出力の0Vが共通のため、負荷電流によってアナログ電圧出力が変動する場合があります。アナログ電圧出力の直線性仕様を満足するためには、判定出力を使用しないでください。

    ※コントローラ接続用コネクタ（CN-EP1）ピン配置図

    ※コントローラ接続用コネクタ（CN-EP1）ピン配置図

    端子No.接続ケーブル
    (1)茶色
    (2)青色
    (3)橙/紫色
    (4)シールド線

    ------------------------------ Tab8 showing ------------------------------

    Sensing characteristics

    *TYPICAL

    EF-S1HS

    Measurement range - field of measurement

    EF-S1HS

    EF-S1HS

    This product is not an instrument for measuring the absolute amount of potential.This product measures the electric field. Thus, the presence of objects other than the object to be measured that disturb the electric field in the measurement area (see left) or around the sensor head will affect measurement accuracy.(The closer the measurement distance, the less affected by surrounding objects.)For accurate measurement, install the sensor head considering measurement distance, measurement area and the surrounding environment.

    Installation tolerance - Display value tolerance characteristics

    EF-S1HS

    Note:If the installation tolerance is greater than 0.5 mm0.020 in, change the measurement range setting at the controller.

    Angular deviation 1

    EF-S1HS

    Angular deviation 2

    Note:There is no graph indication from 5 degrees or higher in the case of L=8mm because the enclosure touches the object when tilted to the positive direction.

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    使用上のご注意

    • Never use this product as a sensing device for personnel protection.
    • In case of using sensing devices for personnel protection, use products which meet laws and standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.

    ・The sensor head is manufactured according to specifications that are complete for use in combination with the optional exclusive controller. Be sure to use it together with the exclusive controller.
    ・Do not touch the sensor head and surrounding parts. If this is not observed, it may cause measurement accuracy to drop.
    ・The metal parts of the sensor head are connected to the 0V line of the exclusive controller power supply, so it should be insulated during use.
    ・Do not use with a plus ground.

    Cautions For Use

    Mounting

    • Do not let dust stick to the measurement unit. When dust has adhered to the measurement unit and its surroundings, it may interfere with proper measurement. If dust has adhered to the measuring unit, blow it off using an air blower, etc.
    • When fittings are charged, it affects the measurement accuracy, so use after grounding the fittings. However, the metal part of the case must be insulated.
    • This product has higher sensitivity when used in the measurement distance of 21 to 100 mm 0.827 to 3.937 in compared to when used in the measurement distance of 8 to 20.5 mm 0.315 to 0.807 in, thus it becomes more susceptible to disturbance noise. Check the usage environment before using this product.

    Wiring

    • Make sure that the power supply is off while wiring.
    • If power is supplied from a commercial switching regulator, ensure that the frame ground (F.G.) terminal of the power supply is connected to an actual ground.
    • In case noise generating equipment (switching regulator, inverter motor, etc.) is used in the vicinity of this product, connect the frame ground (F.G.) terminal of the equipment to an actual ground
    • Do not run the wires together with high-voltage lines or power lines or put them in the same raceway. This can cause malfunction due to induction.
    • A thin cable of 0.09 mm2 is employed for the sensor head. Note that pulling the cable with force may break the cable.
    • Cannot extend the cable of the sensor head.
    • Make sure that stress is not applied directly to the sensor head cable joint.
    • Extension up to total 10m 32.81 ft is possible with 0.3mm2, or more, cable. However, in order to reduce noise, make the wiring as short as possible.

    Others

    • Do not use during the initial transient time (3 sec.) after the power supply is switched on.
    • In order for stable sensing to be carried out, wait for 10 min. after turning on the power before use.
    • Do not use in places where there are strong electric fields apart from those for the object being measured.
    • Do not use in strong magnetic fields.

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