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Product short description:
  • Universal thermocouple or ±100mV input
  • 4-20mA outputs (sink/source)
  • 7-32V DC Loop/local power

The SP233 model is a high-performance signal splitter that converts one millivolt or thermocouple sensor input into two proportional isolated 4-20mA control signals. Power is received from one or both output loop currents.

Click here to watch a short video highlighting the features of the Acromag SP Series.

SP233: Two-Wire Thermocouple / milliVolt Input Signal Splitter Description

The SP233 model is a high-performance signal splitter that converts one millivolt or thermocouple sensor input into two proportional isolated 4-20mA control signals. Power is received from one or both output loop currents.

Setup is fast and easy with a USB connection to your PC and our Windows software. Acromag’s Agility™ mobile app enables configuration on an Android smart phone or tablet. Software simplifies I/O range scaling, calibration, and advanced signal processing capabilities.

High-voltage isolation separates the input and between the output circuits. The isolation protects from surges, reduces noise, and eliminates ground loop errors.

These rugged instruments withstand harsh industrial environments to operate reliably across a wide temperature range with very low drift. They feature high immunity to RFI, EMI, ESD, and EFT, plus low radiated emissions.

Performance Specifications

IMPORTANT: To prevent ground loop error between a grounded PC and a grounded input signal, Acromag strongly recommends use of a USB isolator like Acromag’s USB-Isolator when configuring a SP230 Series transmitter.

USB Interface

USB Connector: USB Mini-B type socket, 5-pin.

USB Data Rate: 12Mbps. USB v1.1 and 2.0 compatible.

USB Transient Protection: Transient voltage suppression on power and data lines.

USB Cable Length: 5.0 meters maximum.

Driver: Not required. Uses built-in Human Interface Device (HID) USB drivers of the Windows operating system.

Input (Passive)

Default Configuration/Calibration
Input: TC J, -210 to 760°C, high filter, Break: up
Output: 4 to 20mA

Input Ranges and Accuracy
Input                        Range                                  Accuracy*
TC J          -210 to 760°C (-346 to 1400°F)            ±0.5°C
TC K         -200 to 1372°C (-328 to 2502°F)          ±0.5°C
TC T         -260 to 400°C (-436 to 752°F)               ±0.5°C
TC R           -50 to 1768°C (-58 to 3214°F)             ±1.0°C
TC S           -50 to 1768°C (-58 to 3214°F)             ±1.0°C
TC E        -200 to 1000°C (-328 to 1832°F)           ±0.5°C
TC B          260 to 1820°C (500 to 3308°F)           ±1.0°C
TC N        -230 to 1300°C (-382 to 2372°F)          ±1.0°C
mV           -100 to 100mV                                           ±0.1mV
*Error includes the effects of repeatability, terminal point conformity, and linearization. Does not include CJC error.

Thermocouple Reference (Cold Junction Compensation): ±0.2°C typical, ±0.5°C maximum at 25°C.

Ambient Temperature Effect: Better than ±80ppm/°C (±0.008%/°C).

Zero Scaling Adjust: 0 to 95% of range, typical.

Full Scale Adjust: 5 to 100% of full scale range, typical.

Lead Break (Sensor Burnout) Detection: Configurable for either upscale (24mA) or downscale (3.3mA) operation.

Input Over-Voltage Protection: Bipolar Transient Voltage Suppressers (TVS), 5.6V clamp level typical.

Resolution
milliVolt input: 0.0025% (1 part in 40,000).
Thermocouple input: 0.1°C.

Input Filter: Selectable digital filtering settings (none, low, medium, high).

Input Filter Bandwidth
Normal mode plus digital filtering within the ADC.
Bandwidth (-3dB) varies with digital filter setting from 4Hz without filtering to 0.33Hz with high filtering.

Noise Rejection (Common Mode, High Filter): 138dB @ 60Hz, typical with 100 ohm input unbalance.

Output (Two Signals, Passive)

Output Range: 4 to 20mA DC.

Output Compliance
RLOAD = (VSUPPLY – 7V) / 0.020A.
RLOAD = 0 to 850 ohms @ 24V DC.

Output Response Time (for step input change)
Time to reach 98% of final output value (typical)
No filtering:         21 milliseconds
Low filter:             48 milliseconds
Medium filter:   149 milliseconds
High filter:       1138 milliseconds

Environmental

Operating temperature: -40 to 80°C (-40° to 176°F).

Storage temperature: -40 to 85°C (-40 to 185°F).

Relative humidity: 5 to 95% non-condensing.

Power Requirement: 7-32V DC SELV (Safety Extra Low Voltage), 24mA max.

Isolation: 1500V AC peak. 250V AC (354V DC) continuous isolation between input and output circuits.

Shock and Vibration Immunity
Vibration: 4g, per IEC 60068-2-64.
Shock: 25g, per IEC 60068-2-27.

Electromagnetic Compatibility (EMC) Compliance
Radiated Emissions: BS EN 61000-6-4, CISPR 16.
RFI: BS EN 61000-6-2, IEC 61000-4-3.
Conducted RFI: BS EN 61000-6-2, IEC 61000-4-6.
ESD: BS EN 61000-6-2, IEC 61000-4-2.
EFT: BS EN 61000-6-2, IEC 61000-4-4.
Surge Immunity: BS EN 61000-6-2, IEC 61000-4-5.

Approvals: CE compliant. Designed for UL/cUL Class I Division 2 Groups ABCD, ATEX/IECEx Zone 2. Ex II 3 G Ex nA IIC T4 Gc -40°C ≤ Ta ≤ +80°C

Physical

General: General-purpose enclosure designed for mounting on 35mm “T-type” DIN rail.

Case Material: Self-extinguishing polyamide, UL94 V-0 rated, color light gray. General-purpose NEMA Type 1 enclosure.

I/O Connectors: Removable plug-in terminal blocks rated for 12A/250V; AWG #26-12, stranded or solid copper wire.

Dimensions: 17.5 x 114.5 x 99.0 mm (0.69 x 4.51 x 3.90 inches).

Shipping Weight: 0.22 kg (0.5 pounds) packed.

  • Easy Configuration via USB with Windows software or Agility app for Android
  • Universal thermocouple or millivolt input (TC Type J, K, T, R, S, E, B, N or ±100mV)
  • Input scales independently at each output
  • User-selectable filtering (none, low, med, high)
  • User-configurable output range damp levels support NAMUR-compliant operation
  • Supports reverse-acting (inverse) output
  • Support sink or source output wiring
  • Very low 7V two-wire loop burden
  • High accuracy, linearity, stability, and reliability
  • 1500V Isolation
  • Space-saving 17.5mm (0.69 inch) design with pluggable terminals for easier wiring
  • Shock (25g) and vibration (4g) resistant
  • Wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
What is Circuit Grounding and Why is it Important? - 8500993 (Log in to view the file)
Why is circuit grounding important? This whitepaper is Part 1 of a three-part Grounding Electrical Equipment Best Practices series that looks at grounding and its role in protecting personnel, equipment, and ensuring the integrity of electrical signals. In this part, we will review circuit grounding and its importance to you, as well as the US...
How Do Ground Fault Circuit Interrupters Work & Protect Us from Shock? - 8500020 (Log in to view the file)
How do ground fault circuit interrupters work? This Electrical Ground Rules white paper is Part 2 of a three-part series that takes a look at grounding and its role in protecting personnel and equipment, and ensuring the integrity of electrical signals. In this part, we will examine our use of ground as a means of...
How does Ground Work as a Voltage Stabilizer and Transient Limiter? - 8501021 (Log in to view the file)
What is the role of ground as a voltage stabilizer and transient limiter? This Electrical Ground Rules whitepaper is Part 3 of a three-part series that takes a look at grounding and its role in protecting personnel and equipment, and ensuring the integrity of electrical signals. Consideration of ground can be very complex and application...

Specifications

Manuals

SP233 User Manual (Log in to download the file)

TTC-SIP: Software Interface Package Information Page (Log in to download the file)
SP Series Windows Configuration Software (Log in to download the file)
Agility Config Tool (Tethered) (Log in to download the file)
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    SP230-Config/Cal

    Factory custom configuration/calibration service. Specify input type, input/output zero and full-scale values, filtering, and sensor fault settings on order.
    Select options
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    TTBus-Kit: DIN Rail Bus Power Connector

    • One kit supports multiple TT330 series transmitters.
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    TTC-SIP: Software

    • Software Interface Package for Acromag DT, ST, TT Series Transmitters and SP, uBSP Series Signal Splitters.
    • Includes configuration sofware CD-ROM (5040-xxx), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
    • Easy setup and digital calibration via USB with Windows configuration software.
    • Download the configuration software only - from the Software Tab
    Select options
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    USB Cables

    4001-112: USB cable, 1 meter, with Type A to Type B plugs. 4001-113: USB cable, 1 meter, with Type A to Mini-B plugs. 5028-565: USB-OTG cable, 6 inches
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Additional information

Weight 8 oz
Dimensions 4 × 4.75 × 1 in
Part Number

SP233-0600: Thermocouple/Millivolt Input, Two-Wire

Configuration

Agility Mobile App, USB Configuration, Windows Software Configuration

Product Series

SP230 Series

Power

Loop Power

  • Description

    SP233: Two-Wire Thermocouple / milliVolt Input Signal Splitter Description

    The SP233 model is a high-performance signal splitter that converts one millivolt or thermocouple sensor input into two proportional isolated 4-20mA control signals. Power is received from one or both output loop currents.

    Setup is fast and easy with a USB connection to your PC and our Windows software. Acromag’s Agility™ mobile app enables configuration on an Android smart phone or tablet. Software simplifies I/O range scaling, calibration, and advanced signal processing capabilities.

    High-voltage isolation separates the input and between the output circuits. The isolation protects from surges, reduces noise, and eliminates ground loop errors.

    These rugged instruments withstand harsh industrial environments to operate reliably across a wide temperature range with very low drift. They feature high immunity to RFI, EMI, ESD, and EFT, plus low radiated emissions.

    Performance Specifications

    IMPORTANT: To prevent ground loop error between a grounded PC and a grounded input signal, Acromag strongly recommends use of a USB isolator like Acromag’s USB-Isolator when configuring a SP230 Series transmitter.

    USB Interface

    USB Connector: USB Mini-B type socket, 5-pin.

    USB Data Rate: 12Mbps. USB v1.1 and 2.0 compatible.

    USB Transient Protection: Transient voltage suppression on power and data lines.

    USB Cable Length: 5.0 meters maximum.

    Driver: Not required. Uses built-in Human Interface Device (HID) USB drivers of the Windows operating system.

    Input (Passive)

    Default Configuration/Calibration
    Input: TC J, -210 to 760°C, high filter, Break: up
    Output: 4 to 20mA

    Input Ranges and Accuracy
    Input                        Range                                  Accuracy*
    TC J          -210 to 760°C (-346 to 1400°F)            ±0.5°C
    TC K         -200 to 1372°C (-328 to 2502°F)          ±0.5°C
    TC T         -260 to 400°C (-436 to 752°F)               ±0.5°C
    TC R           -50 to 1768°C (-58 to 3214°F)             ±1.0°C
    TC S           -50 to 1768°C (-58 to 3214°F)             ±1.0°C
    TC E        -200 to 1000°C (-328 to 1832°F)           ±0.5°C
    TC B          260 to 1820°C (500 to 3308°F)           ±1.0°C
    TC N        -230 to 1300°C (-382 to 2372°F)          ±1.0°C
    mV           -100 to 100mV                                           ±0.1mV
    *Error includes the effects of repeatability, terminal point conformity, and linearization. Does not include CJC error.

    Thermocouple Reference (Cold Junction Compensation): ±0.2°C typical, ±0.5°C maximum at 25°C.

    Ambient Temperature Effect: Better than ±80ppm/°C (±0.008%/°C).

    Zero Scaling Adjust: 0 to 95% of range, typical.

    Full Scale Adjust: 5 to 100% of full scale range, typical.

    Lead Break (Sensor Burnout) Detection: Configurable for either upscale (24mA) or downscale (3.3mA) operation.

    Input Over-Voltage Protection: Bipolar Transient Voltage Suppressers (TVS), 5.6V clamp level typical.

    Resolution
    milliVolt input: 0.0025% (1 part in 40,000).
    Thermocouple input: 0.1°C.

    Input Filter: Selectable digital filtering settings (none, low, medium, high).

    Input Filter Bandwidth
    Normal mode plus digital filtering within the ADC.
    Bandwidth (-3dB) varies with digital filter setting from 4Hz without filtering to 0.33Hz with high filtering.

    Noise Rejection (Common Mode, High Filter): 138dB @ 60Hz, typical with 100 ohm input unbalance.

    Output (Two Signals, Passive)

    Output Range: 4 to 20mA DC.

    Output Compliance
    RLOAD = (VSUPPLY – 7V) / 0.020A.
    RLOAD = 0 to 850 ohms @ 24V DC.

    Output Response Time (for step input change)
    Time to reach 98% of final output value (typical)
    No filtering:         21 milliseconds
    Low filter:             48 milliseconds
    Medium filter:   149 milliseconds
    High filter:       1138 milliseconds

    Environmental

    Operating temperature: -40 to 80°C (-40° to 176°F).

    Storage temperature: -40 to 85°C (-40 to 185°F).

    Relative humidity: 5 to 95% non-condensing.

    Power Requirement: 7-32V DC SELV (Safety Extra Low Voltage), 24mA max.

    Isolation: 1500V AC peak. 250V AC (354V DC) continuous isolation between input and output circuits.

    Shock and Vibration Immunity
    Vibration: 4g, per IEC 60068-2-64.
    Shock: 25g, per IEC 60068-2-27.

    Electromagnetic Compatibility (EMC) Compliance
    Radiated Emissions: BS EN 61000-6-4, CISPR 16.
    RFI: BS EN 61000-6-2, IEC 61000-4-3.
    Conducted RFI: BS EN 61000-6-2, IEC 61000-4-6.
    ESD: BS EN 61000-6-2, IEC 61000-4-2.
    EFT: BS EN 61000-6-2, IEC 61000-4-4.
    Surge Immunity: BS EN 61000-6-2, IEC 61000-4-5.

    Approvals: CE compliant. Designed for UL/cUL Class I Division 2 Groups ABCD, ATEX/IECEx Zone 2. Ex II 3 G Ex nA IIC T4 Gc -40°C ≤ Ta ≤ +80°C

    Physical

    General: General-purpose enclosure designed for mounting on 35mm “T-type” DIN rail.

    Case Material: Self-extinguishing polyamide, UL94 V-0 rated, color light gray. General-purpose NEMA Type 1 enclosure.

    I/O Connectors: Removable plug-in terminal blocks rated for 12A/250V; AWG #26-12, stranded or solid copper wire.

    Dimensions: 17.5 x 114.5 x 99.0 mm (0.69 x 4.51 x 3.90 inches).

    Shipping Weight: 0.22 kg (0.5 pounds) packed.

  • Features & Benefits

    • Easy Configuration via USB with Windows software or Agility app for Android
    • Universal thermocouple or millivolt input (TC Type J, K, T, R, S, E, B, N or ±100mV)
    • Input scales independently at each output
    • User-selectable filtering (none, low, med, high)
    • User-configurable output range damp levels support NAMUR-compliant operation
    • Supports reverse-acting (inverse) output
    • Support sink or source output wiring
    • Very low 7V two-wire loop burden
    • High accuracy, linearity, stability, and reliability
    • 1500V Isolation
    • Space-saving 17.5mm (0.69 inch) design with pluggable terminals for easier wiring
    • Shock (25g) and vibration (4g) resistant
    • Wide ambient operation (-40 to 80°C)
    • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
  • Tech Papers

    What is Circuit Grounding and Why is it Important? - 8500993 (Log in to view the file)
    Why is circuit grounding important? This whitepaper is Part 1 of a three-part Grounding Electrical Equipment Best Practices series that looks at grounding and its role in protecting personnel, equipment, and ensuring the integrity of electrical signals. In this part, we will review circuit grounding and its importance to you, as well as the US...
    How Do Ground Fault Circuit Interrupters Work & Protect Us from Shock? - 8500020 (Log in to view the file)
    How do ground fault circuit interrupters work? This Electrical Ground Rules white paper is Part 2 of a three-part series that takes a look at grounding and its role in protecting personnel and equipment, and ensuring the integrity of electrical signals. In this part, we will examine our use of ground as a means of...
    How does Ground Work as a Voltage Stabilizer and Transient Limiter? - 8501021 (Log in to view the file)
    What is the role of ground as a voltage stabilizer and transient limiter? This Electrical Ground Rules whitepaper is Part 3 of a three-part series that takes a look at grounding and its role in protecting personnel and equipment, and ensuring the integrity of electrical signals. Consideration of ground can be very complex and application...
  • Specs & Data Sheets

    Specifications

    Manuals

    SP233 User Manual (Log in to download the file)

  • Software

    TTC-SIP: Software Interface Package Information Page (Log in to download the file)
    SP Series Windows Configuration Software (Log in to download the file)
    Agility Config Tool (Tethered) (Log in to download the file)
  • Accessories

    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
       
      Select options
    • Compare

      SP230-Config/Cal

      Factory custom configuration/calibration service. Specify input type, input/output zero and full-scale values, filtering, and sensor fault settings on order.
      Select options
    • Compare

      TTBus-Kit: DIN Rail Bus Power Connector

      • One kit supports multiple TT330 series transmitters.
      • For multiple DT330/351 or SP330 transmitters, one TTBUS-KIT is required for each transmitter to be DC Power wired via the bus rail power connections.
         
      Select options
    • Compare

      TTC-SIP: Software

      • Software Interface Package for Acromag DT, ST, TT Series Transmitters and SP, uBSP Series Signal Splitters.
      • Includes configuration sofware CD-ROM (5040-xxx), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
      • Easy setup and digital calibration via USB with Windows configuration software.
      • Download the configuration software only - from the Software Tab
      Select options
    • Compare

      USB Cables

      4001-112: USB cable, 1 meter, with Type A to Type B plugs. 4001-113: USB cable, 1 meter, with Type A to Mini-B plugs. 5028-565: USB-OTG cable, 6 inches
      Select options
  • Additional information

    Additional information

    Weight 8 oz
    Dimensions 4 × 4.75 × 1 in
    Part Number

    SP233-0600: Thermocouple/Millivolt Input, Two-Wire

    Configuration

    Agility Mobile App, USB Configuration, Windows Software Configuration

    Product Series

    SP230 Series

    Power

    Loop Power