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Product short description:
  • Universal thermocouple or ±100mV input
  • 0-20mA, ±10V or 0-10V outputs
  • 6-32V DC external power
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Description

The SP333 is a high-performance signal splitter that converts one millivolt or thermocouple input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Power connects on a terminal block, a rail bus, or both for redundancy.

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

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.

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 SP330 Series transmitter.

USB Interface:

USB Connector: USB Mini-B type socket, 5-pin. 5.0 meters cable length max. No driver required, uses Windows HID drivers.
USB Data Rate: 12Mbps. USB v1.1 and 2.0 compatible
USB Transient Protection: Transient voltage suppression on power and data lines

Input (Passive)

Default Configuration/Calibration:
Input: TC J, -210 to 760°C, med. 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 (but not 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)
Scaling Adjust: 0 to 95% of range, typical
Full Scale: 5 to 100% of full scale range, typical
Lead Break (Sensor Burnout) Detection: Upscale/downscale ±5% full scale range typical
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 Impedance:
Current input: 24.9 ohms
Voltage input: 15M ohms
Noise Rejection (with High Filter):
Normal mode @ 60Hz: >80dB
Common mode @ 60Hz: >134dB

Output (Two Signals, Active)

Output Range:
Range                  Over-Range                            Resolution
±10V                            ±10.5V                                1 part in 62415
±5V                              ±5.25V                                1 part in 31208
0 to 10V             –0.5527 to +10.5V                  1 part in 59240
0 to 5V             –0.27634 to +5.25V                  1 part in 60262
0 to 20mA          –1.1054 to 21mA                   1 part in 58596
4 to 20mA          –1.1054 to 21mA                   1 part in 46877

Output Load:
Voltage output: 1K ohms minimum
Current output: 0-550 ohms

Output Response Time (for step input change):

Time to reach 98% of final output value (typical)
No filtering:          14 milliseconds
Low filter:             41 milliseconds
Medium filter:   137 milliseconds
High filter:        1141 milliseconds

Output Ripple: Less than ±0.1% of output span

Environmental

Operating temperature: -40 to 75°C (-40° to 167°F)
Storage temperature: -40 to 85°C (-40 to 185°F)
Relative humidity: 5 to 95% non-condensing
Power Requirement: 6-32V DC external supply, 1.5W max
Isolation: 1500V AC peak. 250V AC (354V DC) continuous between input, output, and power 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 can scale differently for each output
  • User-selectable filtering (none, low, med, high)
  • Scalable current or voltage output ranges: 0-20mA, 4-20mA, ±5V, ±10V, 0-5V, 0-10V
  • Normal or reverse-acting output
  • Wide-range DC power input from 6-32V with support for rail power bus and redundancy
  • 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 75°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
WHITEPAPER: Electrical Ground Rules Part 1 (Log in to view the file)
WHITEPAPER: Electrical Ground Rules Part 2 (Log in to view the file)
WHITEPAPER: Electrical Ground Rules Part 3 (Log in to view the file)

Specifications

Manuals

SP333 User Manual (Log in to download the file)

Agility Config Tool (Log in to download the file)
SP Series Windows Configuration Software (Log in to download the file)
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Additional information

Weight 8 oz
Dimensions 2.4 × 1.85 × 0.925 in
Part Number

USB-Isolator: includes USB cable

  • Description

    This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.

    The isolation protects equipment from electrical surges and transient voltage spikes. It also eliminates ground loop currents flowing between the PC and peripherals which can cause damage and inaccurate measurements. Additionally, isolation minimizes conducted noise from static discharge, magnetic fields, and radio frequency interference.

    Acromag’s USB isolator is very easy to use. The isolator inserts in-line with the USB connection and operates transparently. No special software drivers are required. The unit receives power from the PC’s USB port and isolates that power to the connected device. High noise immunity and low radiated emissions ensure reliable data transfer in sensitive applications.

    A number of high-performance features help provide convenient and dependable operation. The green LED indicates that power is being received and blinks if the connected device draws too much current. An internal jumper lets you switch from Full Speed (12 Mbps) to Low Speed (1.5 Mbps) communication. The reset button offers a simple way to reinitialize a connected device without breaking the cable connection. High-retention USB sockets keep cables securely attached under shock and vibration.

  • 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 can scale differently for each output
    • User-selectable filtering (none, low, med, high)
    • Scalable current or voltage output ranges: 0-20mA, 4-20mA, ±5V, ±10V, 0-5V, 0-10V
    • Normal or reverse-acting output
    • Wide-range DC power input from 6-32V with support for rail power bus and redundancy
    • 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 75°C)
    • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
  • Tech Papers

    WHITEPAPER: Electrical Ground Rules Part 1 (Log in to view the file)
    WHITEPAPER: Electrical Ground Rules Part 2 (Log in to view the file)
    WHITEPAPER: Electrical Ground Rules Part 3 (Log in to view the file)
  • Specs & Data Sheets

    Specifications

    Manuals

    SP333 User Manual (Log in to download the file)

  • Software

    Agility Config Tool (Log in to download the file)
    SP Series Windows Configuration Software (Log in to download the file)
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      Read more
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      • Includes configuration sofware CD-ROM (5040-944), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
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      • Download the configuration software only from the Software Tab below
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  • Additional information

    Additional information

    Weight 8 oz
    Dimensions 2.4 × 1.85 × 0.925 in
    Part Number

    USB-Isolator: includes USB cable