To reduce the risk of electrical shock, the controller must be plugged into a grounded outlet with ratings conforming to the specifications on the data nameplate. It must be connected to a viable ground circuit. DO NOT USE ADAPTERS (see Figure 4)! All wiring must conform to required electrical codes.
The DC4500 conductivity controller is available in either 115 or 230 VAC 50/60 Hz. The 115 VAC version is supplied with one (1) 6-foot grounded AC power cord and four (4) 12-inch output pigtails for plug-in connection of controlled devices.
A four-pin connector is provided for the conductivity probe and temperature compensation probe.
The DC4500 controller is provided with a voltage selector switch to allow the unit to be used with a 115 VAC or 230 VAC power source. To change the voltage selection, disconnect the unit from the power source and remove the front keypad panel. The selector switch is located on the circuit board attached to the back panel. When switching voltages ensure that power cord and pigtails are appropriately changed