AI, 16-Channel, 4-20 mA, HART

The DeltaV system supports the Series 2 AI, 16-Channel, 4-20 mA, HART card in Simplex mode and the AI, 16-Channel, 4-20 mA, HART, Series 2 Plus card in redundant mode.

Installation Notes

The 16-channel Analog Input terminal block provides screw terminations for field wiring for the simplex Series 2 AI, 16-Channel, 4-20 mA, HART card used with 2-wire field devices.
The 4-wire 16-Channel Analog Input Terminal Block provides screw terminations for field wiring for the simplex, Series 2 AI, 16-Channel, 4-20 mA, HART card used with 4-wire field devices.
The Redundant 16-Channel Analog Input Terminal Block provides screw terminations for a redundant pair of AI, 16-Channel, 4-20 mA, HART, Series 2 Plus cards used with 2- or 4-wire field devices.
The Redundant Analog Input 48-Pin Mass Termination Block can also be used to provide terminations for a redundant pair of AI, 16-Channel, 4-20 mA, HART, Series 2 Plus cards.The AI/AO Mass Connection Board can be used to provide an interface to the AI, 16-Channel, 4-20 mA, HART, Series 2 Plus card used with the Redundant Analog Input 48-Pin Mass Termination Block.
To function correctly, the card requires that 24 VDC be supplied through the bussed field power connection.

Specifications

Table: AI, 16-Channel, 4-20 mA, HART (Series 2 and Series 2 Plus)
Item	Specifications
Number of channels	16
Isolation	Field to system isolation is factory tested to 1000 VDC. No channel to channel isolation.
Nominal signal range (span)	4 to 20 mA
Full signal range	2 to 22 mA
2-wire transmitter power	13.5 V min. at 20 mA (current limited to 29 mA maximum)
LocalBus current (12 VDC nominal)	85 mA typical, 150 mA maximum
Field circuit power (per card)	600 mA maximum at 24 VDC (±10%)
Field circuit per channel	30 mA maximum
Accuracy over temperature range	0.2% of span
Resolution	16 bits
Repeatability	0.05% of span
Filtering	-3 db at 2.7 Hz -6 db at 4.6 Hz -20.5 db at 20 Hz -34 db at 50 Hz -90 db at 1200 Hz
Rolloff frequency	-3 dB at 2.7 Hz, -20.5 dB at one-half the sampling frequency
Calibration	None required
Communications support	HART pass-through request/response HART variable report Field device status report
HART scan time	600-800 ms (typical) per enabled channel
Mounting	Assigned slot of I/O carrier

Wiring Diagrams

Figure: Wiring Diagram for Series 2 AI, 16-channel, 4-20 mA, HART connected to a two-wire device

Figure: Wiring Diagram for Series 2 AI, 16-channel, 4-20 mA, HART connected to a 4-wire device

Figure: Wiring Diagram for Redundant AI, 16-Channel, 4-20 mA, HART, Series 2 Plus