Voltage-Output-Transmitters

Supported Applications

The ACI Voltage Output Analog Current Sensors (Series CTE2, SCTE2, CTV2, and SCTV2) are designed for AC current monitoring applications where equipment operation is tracked. These sensors utilize an 'Average' current measuring method intended specifically for pure sinusoidal AC waveforms. Documented application areas include load trending, single speed loads, pumps, compressors, fans, preventative maintenance, LEED compliance, project justification (ROI), and process control.

The series offers solid-core versions suitable for new installations or OEM applications, while split-core versions are intended for retrofit scenarios and use on service technicians' vehicles. The sensors must be used with insulated conductors only and are not recommended for life/safety applications, hazardous locations, switching power supplies, or variable speed drives due to the limited operating frequency range.

Operating Conditions & Performance

The series monitors AC Current up to a maximum of 600 VAC with an isolation voltage of 2200 VAC. The operating frequency range is specified as 50 to 600 Hz, and the sensors are powered by induction from the monitored conductor without requiring external power.

Performance specifications vary by series and selected amperage range:

• A/CTE2 & A/SCTE2 Series (0-10A Range Only): +/- 1% accuracy from 5-100% of Selected Range.
• A/CTE2 & A/SCTE2 Series (All Other Ranges): +/- 1% to +/- 2% accuracy depending on the specific range row in the ordering grid; table data indicates +/- 1% from 2-100% of Selected Range for some configurations and +/- 2% from 5-100% for others.
• A/CTV2 Series: +/- 1% accuracy from 5-100% of Selected Range.
• A/SCTV2 Series (0 to 10A Range Only): +/- 2% accuracy from 5 to 100% of Selected Range.
• A/SCTV2 Series (All Other Ranges): +/- 1% accuracy from 5 to 100% of Selected Range.

The response time is < 300 mS for rise and fall times. The sensors operate within an ambient temperature range of 5 to 104°F (-15 to 40°C) and a humidity range of 0 to 95%, non-condensing.

Configuration Options

The series supports field-selectable amperage ranges via internal jumpers, with factory settings typically on the high range. Available measurement ranges include:

• 0 to 10/20/50A
• 0 to 50/100/150A
• 0 to 100/200/250A (Split-Core only)

Housing and Mounting:

• Solid-Core Versions: Designed for new installations; dimensions are approximately 2.760" x 3.343" x 1.050" (L x W x H).
• Split-Core Versions: Ideal for retrofit applications without disconnecting the conductor; aperture size is 0.75" (19.05 mm). Dimensions are approximately 2.780" x 3.238" x 1.120".
• Mounting: Features a patented 35 mm Din Rail mounting foot or can be mounted using #8 x ¼" Tek screws into the base holes.

Output and Electrical Connections:

• A/CTE2 & A/SCTE2 Series: Provide a linear 0 to 5 VDC output signal via 2-wire connection.
• A/CTV2 & A/SCTV2 Series: Provide a linear 0 to 10 VDC output signal via 2-wire connection.
• Connections: Utilize a 2-position, polarity-sensitive screw terminal block. Recommended wiring is 18 to 24 AWG copper wire using shielded cable (max length <30 meters).

The enclosure material is PC/ABS (Polycarbonate/ABS Blend) with a UL94-V0 flammability rating.

Key Product Differences

Variants within the series are distinguished by core style, output voltage level, and maximum amperage capability:

• Solid-Core Models (A/CTE2-xxx, A/CTV2-xxx): Available in 0 to 50A and 0 to 150A ranges. These models weigh approximately 0.194 lbs.
• Split-Core Models (A/SCTE2-xxx, A/SCTV2-xxx): Offered in 0 to 50A, 0 to 150A, and 0 to 250A ranges. These models weigh approximately 0.274 lbs.
• Voltage Output: Models ending in 'E' (CTE2/SCTE2) output 0-5 VDC; models ending in 'V' (CTV2/SCTV2) output 0-10 VDC.

All sensors carry UL/CUL US Listed (UL 508), CE, RoHS2, WEEE, and UKCA approvals. The series is covered by a Five-Year Limited Warranty.