Servomex DF-130E, Operator'S Manual

Page: 50 / 88

46 DF-150E Outputs and Remote Connections
9.3.2 Analyzer Control of a Remote Pump
If factory configured, a remote pump can be powered and controlled through
the Pump Control connector on the back panel. See Figure 27.
DANGER
The pump connector will have 110 VAC present even if the analyzer
is running on 220 VAC. The pump connector is intended to power
the Servomex 5 watt pump only.
The pump control wires should be in a shielded cable (separate from the
sensor signal) with the shield attached to the ground stud on the back of the
analyzer. To avoid ground loops, the shield should left open and
not attached
to the remote pump chassis. The three wires in the pump cable should be
attached to the pump connector on the rear of the analyzer. The lowest pin is
hot.
Pump Cable (separate from sensor cable)
Distance in Feet Minimum Wire Size
0 – 500 #22 AWG
500 – 1000 #20 AWG
Table 7: Pump Cable Specification
9.3.3 Remote Control of the On-board Pump
If factory configured, an on-board pump can be controlled via a remote, user
provided switch connected to the PUMP connector. See Figure 27. The pump
switch located behind the front door is in series with any external remote
switch. See the rear panel of the analyzer for pump control information.
DANGER
The pump connector will have 110 VAC present. The lowest pin is
hot.
NOTE
The pump switch located behind the front door must be pushed in to
enable remote pump control.
Any user-provided remote switch and wiring should be rated for 5 watts and
110 VAC.