ST51A/ST75A/ST75AV Mass Flow Meters
INSTALLATION
Fluid Components International LLC
19
The above precautions are minimum requirements. The complete use of ESD precautions can be found in the U.S. Department of Defense
Handbook 263.
Interface Board Connections
Power and signal connections are made at the interface board. Refer to
Power Connections
Warning:
Turn OFF instrument power source before wiring instrument power.
The instrument is offered in DC and AC input power configurations. DC units include DC interface and power supply boards. Similarly, AC
units include AC interface and power supply boards. Interface boards are specifically marked for AC or DC power. Only connect the power
specified on the wiring module as shown in
. Both AC and DC inputs require a ground wire to be connected. Input power terminal
blocks accept 14-26 AWG wire. Observe power wire routing as described in
O
NBOARD
P
OWER
ON
LED
I
NDICATOR
An LED on the interface board lights up green when instrument power is ON. The LED is visible only when the blind lid is removed, which
serves to alert the user that power is active when accessing the instrument’s signal/power wiring.
Figure 17 – Power and Signal Wiring Terminals
Summary of Contents for ST51A
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