FL4000
35
Table 15: Analog Output Levels
Analog Output
Dual MODBUS
HART
Startup
8
0 to 0.2 mA
3.5 mA
FAULT Signal
0 to 0.2 mA
3.5 mA
Test Mode
1.5 ± 0.2 mA
3.5 mA
COPM Fault Signal
2.0 ± 0.2 mA
3.5 mA
Ready signal
4.3 ± 0.2 mA
4.3 ± 0.2 mA
WARN signal
16.0 ± 0.2 mA
16.0 ± 0.2 mA
ALARM signal
20.0 ± 0.2 mA
20.0 ± 0.2 mA
The maximum analog output load is 600
Ω
.
NOTE:
The COPM Fault Signal may also be set to 0 mA at the factory (non HART only).
3.6.9 Cable
Requirements
For interfacing with 250
Ω
input impedance devices, the following maximum cable lengths
apply (maximum 50
Ω
loop):
Table 16: Maximum Cable Lengths for 250
Ω
Inputs
AWG
Feet
Meters
14
9,000 2,750
16
5,800 1,770
18
3,800 1,160
20
2,400 730
22
1,700 520
3.6.10 Power
Table 17: Power Terminals
Terminal Block
Connection Point
Block Name
Setting
P1
Term 8
+24IN
+24 V
In
(VDC)
P1
Term 9
GND
Ground (COM)
Table 17 shows the power connections for the FL4000. The supply voltage range is 20 to 36
VDC at the detector (low voltage is detected at 18.5 VDC). The following maximum cable
lengths apply for a +24 VDC supply (maximum 20
Ω
loop):
Table 18: Maximum Cable Lengths for +24 VDC
AWG
Feet
Meters
14
4,500 1,370
16
2,340 715
18
1,540 470
20
970 300
22
670 205
8
Startup mode lasts exactly 15 seconds.