SP236 Process Loop Splitter
• DC current and low voltage input
• 4-20mA outputs (sink/source)
• 7-32 V DC loop power
The SP236 model is a high-performance signal splitter that converts one DC current or millivolt input into two isolated proportional 4-20mA control signals. Power is received from one or both output loop currents.more >
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 from each output circuit. 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.
Agility™ Config Tool is available for free.
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.
Default Configuration/Calibration: Input: 4 to 20mA, medium filter. Output: 4 to 20mA.
Input Ranges and Accuracy
|±20mA||±0.05% of span|
|0 to 20mA||±0.05% of span|
|4 to 20mA||±0.05% of span|
|0 to 11.17mA (for AC sensor)||±0.05% of span|
|±1mA||±0.05% of span|
|±0.5V||±0.05% of span|
|0 to 500mV||±0.05% of span|
Error includes the effects of repeatability, terminal point conformity, and linearization.
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.
Current input: 24.9 ohms.
Voltage input: 15M ohms.
Input Over-Voltage Protection: Bipolar Transient Voltage Suppressers (TVS), 5.6V clamp level typical.
Bipolar input: 1 part in 50000 (±25000).
Unipolar input: 1 part in 25000.
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: Dual isolated 4 to 20mA DC.
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 filter||17 milliseconds|
|Low filter||41 milliseconds|
|Medium filter||138 milliseconds|
|High filter||1142 milliseconds|
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: Loop powered, 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 (pending): CE compliant. UL/cUL listing. ATEX Certified. Designed for Class I; Division 2; Groups ABCD; Zone 2. ATEX II 3 G Ex nA IIC T4 Gc -40°C < Ta < +80°C
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
• Single unit accepts input ranges up to ±500mV, ±20mA DC, or 0-20A AC (with external sensor)
• Input scales independently at each output
• User-selectable filtering (none, low, med, high)
• User-configurable output range clamp levels support NAMUR-compliant operation
• Supports reverse-acting (inverse) output
• Supports 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 1 Division 2 and ATEX Zone 2 approvals (pending).