6
2.2.2
Remote LCD Readouts
FMA 5400A/5500A Mass Flow Controllers are available with optional remote
reading LCD displays supplied with a three foot long wire to accommodate most
applications. This configuration includes the upper block element which serves as
the LCD readout mounting. Special lengths of remote extension wiring (up to 9.5
feet [3 meters] are available on request.
2.2.3
Panel Mounting Readouts
Another option for the FMA 5400A/5500A Mass Flow Controller is the Panel
Mounting Remote Readout.
In this configuration the LCD readout is supplied with a three foot long extension
wire, and no aluminum housing around the LCD. The LCD readout for panel
mounting includes a bezel with two plastic screws which conveniently fit into a rec-
tangular cut-out for panel mounting (see Figure 2-3).
When active, the 2% cutoff will shut off the power to the valve when a setpoint of
less than 2% of the full scale flow range is set. Figure 2-2 shows the jumper con-
figurations for the three basic valve control options.
The factory default jumper settings are: LOCAL control, 2% cutoff off, and 0 to 5 VDC.
FUNCTION
NJ1A
NJ1B
NJ1C
NJ1D
NJ1E
Remote
0 to 5 Vdc 2% cutoff ON
2 - 3
5 - 6
8 - 9
10 - 11
13 - 14
0 to 5 Vdc 2% cutoff OFF
14 -15
4 to 20 mA 2% cutoff ON
1 - 2
4 - 5
7 - 8
10 - 11
13 - 14
4 to 20 mA 2% cutoff OFF
14 - 15
Local
2% cutoff ON
2 - 3
5 - 6
8 - 9
11 - 12
13 -14
2% cutoff OFF
14 - 15
3
6
9
12 15
2
5
8
11 14
1
4
7
10 13
A
B
C D
E
FIGURE 2-3,
VALVE CONTROL CONFIGURATION JUMPERS
