Emerson IFT9701 Specifications, Performance specifications, Pulse passive, Communication

Appendix A

IFT9701 Specifications

A.1 Performance specifications

For performance specifications, refer to the documentation for your sensor.

A.2 Functional specifications

A.2.1 Output signals

Milliamp (active)

•4–20 mA output represents mass flow or volume flow

•Sensor size determines minimum and maximum spans. Recommended minimum span (% of nominal flow range):

-ELITE sensors: 2.5%

-F-Series sensors: 10%

-D and DL sensors: 10%

•Load limit is 600 ohms

•Internally powered (active)

•Isolated to ±500 VDC from all other outputs and earth ground

•Out-of-range capability is 3.8 or 20.5 mA

Pulse (passive)

•Pulse output represents mass or volume flow

•Externally powered (passive), requires pull-up resistor to 5–30 VDC power supply

•Minimum resistance is 500 ohms at 5 V, 3 kohms at 30 V

•Galvanically isolated to ±500 VDC

•Out-of-range capability to 7200 Hz

•Voltage in on state is less than 1 V

•Below 1 Hz, the pulse width will be 500 ms; at all pulse frequencies between 1 Hz and 7200 Hz, the pulse width is half the pulse period

Communication

•HART protocol-compatible Bell 202 digital signal is superimposed on 4–20 mA analog signal, and available for host system interface

•Frequency 1.2 and 2.2 kHz, amplitude 0.5 mA peak-to-peak, baud rate 1200 baud

•Requires 250 to 600 ohms load resistance

Specifications

HART Menu Trees

Optional Display

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Model IFT9701 Transmitter Instruction Manual 65