Delta Faucet NANOTRACE DF-745 - Manual (Page 21)

Installation, Start Up and Shut Down DF-745 17
4.1.4 Electrical Connections
Open the door and locate the power switch in the center of the upper rail. Be sure it is in
the OFF position. Plug the line cord (supplied with 110VAC units only) into the receptacle
at the back of the analyzer. Verify the operating voltage is proper according to the label on
the rear and connect the line cord to the power source. See Figure 6 and Figure 7.
4.1.5 Hydrogen Service Safety System
This optional system is designed to safeguard the DF-745 from explosion hazards when
operating on hydrogen sample gas under normal pressure and flow conditions as detailed in
the Operating Instruction Manual. The instrument chassis and the remote pump, if
equipped, are both protected by maintaining a safe condition within their respective
enclosures. If installed, this option impacts the electrical wiring, gas plumbing and operation
of the analyzer. See page 89 for additional installation and operation information.
NOTE, if equipped with the Hydrogen Safety Service System, when shipped from the
factory the analyzer will be configured through the GSF screen to measure hydrogen. As a
result, the Hydrogen Safety Service System will be enabled out of the box.
5 5 RLY4-COM RLY2-COM
RLY1-COM
RLY1-NO
RLY1-NC
KEY
4 4 RLY3-NC
1
2
3
KEY
3
2
1 RLY3-COM
RLY3-NO
RLY2-NO
RLY2-NC
GND 8
6
7
GND 8
7
6 RLY4-NO
RLY4-NC
RX+
TX+
3 3
1
2
1
AC INLET
NOT USED
2
4-20mA-
4-20mA+
TX-
GND
RX-
KEY
8
7
6
4
5
KEY
GND 8
7
6
4
5 AOUT-
AOUT+
~
~
~
~ ~
~
STANDARD GAS PANEL SHOWN
Figure 6: AC Power Connections