Filter
Top Products
204
Reference Manual
00809-0100-4444, Rev AC
Appendix B: Product Specifications
January 2015
Product Specifications
Figure B-4. Analog Loop Load Limitations
The analog output is automatically scaled to provide 4mA at lower range value and 20mA at
upper range value. Full scale continuously adjustable between -39 and 39 ft/s (-12 to 12 m/sec),
1 ft/s (0.3 m/s) minimum span.
HART Communications is a digital flow signal. The digital signal is superimposed on the 4–
20mA signal and is available for the control system interface. A minimum of 250Ohms loop
resistance is required for HART communications.
Scalable pulse frequency adjustment
(1)(2)
0-10,000Hz, switch-selectable as internally or externally powered. Pulse value can be set to
equal desired volume in selected engineering units. Pulse width adjustable from 0.1 to 650 ms.
Internally powered: Outputs up to 12VDC
Externally powered: Input 5 - 28VDC
Output testing
Analog output test
(3)
Transmitter may be commanded to supply a specified current between 3.5 and 23mA.
Pulse output test
(4)
Transmitter may be commanded to supply a specified frequency between 1 and 10,000Hz.
Optional discrete output function (AX option)
Externally powered at 5 - 28VDC, 240mA max, solid state switch closure to indicate either:
Reverse flow
Activates switch closure output when reverse flow is detected.
R
max
= 31.25 (V
ps
– 10.8)
V
ps
= Power Supply Voltage (Volts)
R
max
= Maximum Loop Resistance (Ohms)
(1) For transmitters with intrinsically safe outputs (option code B), power must be supplied externally.
(2) For transmitters with intrinsically safe outputs (option code B), frequency range is limited to 0-5000Hz.
(3) For transmitters with intrinsically safe outputs (option code B), power must be supplied externally.
(4) For transmitters with intrinsically safe outputs (option code B), power must be supplied externally.
Power Supply (Volts)
Load (Ohms)
Operating
Region
600
0
10.8 30