PART TWO - INSTALLATION
SECTION 3 - ELECTRICAL CONNECTIONS
Model P33 pH/ORP Analyzer (panel-mount 1/4 DIN)
Rev. 6-1100
28
3.6 Line Power
☞
☞
Refer to Figure 2-9, 2-10 or 2-11 and connect line power to
appropriate terminals on TB1 using the standard three-wire
connection arrangement.
Use wiring practices which con-
form to local codes
(example: National Electric Code
Handbook in the U.S.A.).
WARNING:
REMOVE LINE POWER WHILE CONNECTING LINE
POWER WIRES TO THE TB1 TERMINALS. ALSO, USE
ONLY THE STANDARD THREE-WIRE CONNECTION
ARRANGEMENT FOR SINGLE-PHASE LINE POWER
TO PREVENT AN UNSAFE CONDITION, AND TO
ENSURE PROPER ANALYZER OPERATION.
NOTE:
In all cases, connect the line power cable ground
wire (usually green) to the “ground symbol” terminal
on TB1.
The “115” and “230” voltage circuits are protected with in-
ternal, board-mounted slow-blow fuses.
NOTE:
For 230 volt split phase line power, be sure to con-
form to local codes with regard to fusing the 115
volt line connected to the “N” terminal.
FIGURE 2-9
Connecting 115 Volt
Single Phase Line Power
(90-130 VAC)
FIGURE 2-10
Connecting 230 Volt
Single Phase Line Power
(190-260 VAC)
FIGURE 2-11
Connecting 230 Volt
Split Phase Line Power
(190-260 VAC)
