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        OM-19-2

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        Load Cell Central OM-19-2 is a DIN-rail analog signal conditioner for strain-gauge load cells with selectable voltage or 4–20 mA output.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for OM-19-2

        • Manufacturer:
          Load Cell Centre
        • Part Number:
          OM-19-2
        • Product Family:
          Load Cell Centre
        • Product Type:
          DIN-Rail Analog Load Cell Signal Conditioner
        • Stock:
          1
        • Power supply:
          24 ±4 V DC
        • Accuracy class:
          0.05%
        • Zero temperature effect:
          ≤0.035% F.S./°C
        • Span temperature effect:
          ≤0.02%/°C
        • Operating temperature:
          0 to +70 °C
        • Load-cell excitation:
          3, 5, or 10 V DC selectable
        • Minimum cell impedance at 3/5 V:
          80 Ω
        • Minimum cell impedance at 10 V:
          160 Ω
        • Span adjustment:
          0.15 to 12 mV/V
        • Maximum supply current:
          120 mA
        • Voltage output:
          ±10 V or 0–10 V
        • Current output:
          4–20 mA
        • Voltage-output load:
          ≥2000 Ω
        • Current-output load:
          ≤500 Ω
        • Output capacitive load:
          ≤1 nF
        • Low-pass filter:
          10 Hz (-3 dB), jumper selected
        • Bandwidth:
          ≤20 kHz
        • Weight:
          0.22 lbs (0.1 kg)
        • Estimated shipping dimensions:
          13x11.1x2.25cm
        • Tariff Code:
          9031809090
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Sensor Wiring Output Modes Calibration Installation

        Features:

        • DIN-rail housing integrates load-cell conditioning inside a control cabinet.
        • One module can excite up to four 350 Ω strain-gauge load cells.
        • Selectable voltage or current output matches common controller analog inputs.
        Four- and six-wire sensor selections let the terminal arrangement follow the actual load-cell cable and available sense conductors.

        Zero and span controls work with the chosen excitation and analog-output mode, so calibration should be completed after wiring selections are fixed.

        A shunt-calibration input and measurement points support verification without changing the mechanical load during every electrical check.

        The Load Cell Central OM-19-2 DIN-Rail Analog Load Cell Signal Conditioner may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Load Cell Central OM-19-2 DIN-Rail Analog Load Cell Signal Conditioner Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Preparing the strain-gauge connection

        • Cell count: The conditioner can energize up to four 350 Ω load cells.
        • Cable selection: Set the input for a four- or six-wire sensor before calibration.
        • Excitation: Choose 3, 5, or 10 V to suit the connected bridge network.
        • Sense conductors: On six-wire installations, confirm the sense pair reaches the load-cell terminals rather than stopping at the cabinet.

        Matching the receiving analog input

        • Bipolar voltage: Select ±10 V when the controller must receive positive and negative measurement direction.
        • Unipolar voltage: Use 0–10 V only with an input impedance of at least 2000 Ω.
        • Current loop: The 4–20 mA path supports a loop load up to 500 Ω.
        • Output loading: Keep connected capacitance within the documented 1 nF limit.

        Establishing zero, span, and response

        • Zero setting: Remove mechanical load and stabilize excitation before trimming the zero point.
        • Span range: Set gain within the documented 0.15 to 12 mV/V sensor range.
        • Shunt check: Use the calibration control to verify a repeatable electrical response without altering the load.
        • Filtering: Engage the 10 Hz low-pass option only when its response time still fits the weighing process.

        Cabinet and supply checks

        • Rail position: Allow space for the 130 x 111 x 22.5 mm DIN-rail housing and terminal wiring.
        • DC source: Maintain the supply inside 24 ±4 V DC under load.
        • Thermal limit: Keep operating temperature between 0 and +70 °C.
        • Commissioning order: Confirm wiring and jumpers before applying known-load points for final scaling.
        Description
        Load Cell Central OM-19-2 is the DIN-rail version of the OM-19 analog signal conditioner, supplying strain-gauge load cells and converting their bridge output into a voltage or 4-20 mA signal for the receiving controller.

        A four- or six-wire sensor connection on OM-19-2 carries the selected 3, 5, or 10 V excitation to as many as four 350 ohm load cells, with the wiring selection matched to the available sense conductors.

        Zero, span, and shunt-calibration controls on OM-19-2 act on the conditioned bridge signal before it reaches the selected analog output, allowing the electrical reading to be checked without altering the mechanical load.

        At the output stage, OM-19-2 routes the measurement to +/-10 V, 0-10 V, or 4-20 mA; the jumper-selected low-pass filter changes how quickly signal variation reaches the controller.
        Alternative Names
        Load Cell Central OM-19-2 Load Cell Centre OM-19-2 OM-19-2 DIN Rail Version OM19-2 OM 19 2 OM-19 Analog Conditioner OM-19 DIN Rail Conditioner OM-19-2 Load Cell Amplifier
        Technical notes
        Load Cell Central OM-19-2 accepts four- or six-wire load-cell connections and powers up to four 350 Ω strain-gauge cells.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Which load-cell wiring should be selected on OM-19-2 before calibration?
        OM-19-2 supports four- or six-wire strain-gauge sensors. Match the jumper position to the actual cable, then verify sense conductors and excitation at the load cell before setting zero and span.
        How should the excitation setting on OM-19-2 be chosen?
        Set OM-19-2 to 3, 5, or 10 V excitation only after checking the connected cells and their combined impedance. The total load must remain at or above the documented minimum for the selected excitation voltage.
        What must be matched when connecting an OM-19-2 voltage output?
        For OM-19-2 in ±10 V or 0–10 V mode, confirm the receiving input presents at least 2000 Ω. Select the output range first, then calibrate zero and span against known mechanical loads.
        When is the 4–20 mA mode on OM-19-2 the better choice?
        Use the OM-19-2 4–20 mA output when the receiving controller and loop are designed for current transmission. Keep the loop load at or below 500 Ω and verify the measured current at zero and full-scale test points.
        How can filtering be applied on OM-19-2 without masking a process change?
        OM-19-2 provides a jumper-selected 10 Hz low-pass option and can be customized for other filtering ranges. Choose filtering from the required process response, then confirm that a real load change is still reproduced within the needed time.
        What power check should be completed before commissioning OM-19-2?
        Supply OM-19-2 from 24 ±4 V DC and allow for up to 120 mA. Verify polarity and voltage under load before attaching the controller input so a supply problem is not mistaken for sensor drift.

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