Specifications

Frequency Output Load Resistance Value

 

 

 

 

Rmax = (Vsupply - 4)/0.003

 

 

 

 

 

 

 

 

*Rmin = (Vsupply - 25)/0.006

 

 

 

 

 

*Absolute minimum = 100 Ohms for Vsupply < 25.6 volts

 

 

10000

 

 

 

 

 

 

 

 

 

 

 

 

 

9000

 

 

 

 

 

 

 

 

 

 

 

 

(Ohms)

8000

 

 

 

 

 

 

 

 

 

 

 

 

7000

 

 

 

 

 

 

 

 

 

 

 

 

6000

 

 

 

 

 

 

 

 

 

 

 

 

resistor

 

 

 

 

 

 

 

 

 

 

 

 

5000

 

 

 

 

 

 

 

 

 

 

 

 

4000

 

 

 

 

 

 

 

 

 

 

 

 

External

3000

 

 

 

 

 

 

Operating

 

 

 

2000

 

 

 

 

 

 

Region

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

5

7

9

11

13

15

17

19

21

23

25

27

29

Supply voltage (volts)

Discrete output (Model 2700 only):

-Can report event 1, event 2, event 1 or 2, flow direction, flow switch, calibration in progress, or fault

-Configurable polarity: active high or active low

Model 2700 transmitters with non-intrinsically safe configurable input/outputs option board (output option code B or C)

One or two 4–20 mA outputs:

Channel A is always an mA output; Channel B is configurable as an mA output

Not intrinsically safe

Internally powered (active)

Isolated to ±50 VDC from all other outputs and earth ground

Maximum load limit:

-Channel A (mA1): 820 Ohms

-Channel B (mA2): 420 Ohms

Can report mass flow, volume flow, density, temperature, or drive gain; transmitters with the petroleum measurement application (API) or enhanced density application can also report standard volume flow and density at reference temperature

Linear with process from 3.8 to 20.5 mA, per NAMUR NE43 (June 1994)

Output Wiring – Intrinsically Safe

Output Wiring – Configurable I/O Output Wiring – Fieldbus/PROFIBUS

Specifications

Installation Manual

59

Page 63
Image 63
Emerson 2700, 1700 installation manual Absolute minimum = 100 Ohms for V supply 25.6 volts