Omega FCLTX-100 instruction sheet Section Electrical Installation, Section Sensor Conditioning

PRODUCT INSTRUCTION SHEET

SECTION 6.0

ELECTRICAL INSTALLATION

6.0ELECTRICAL INSTALLATION. The sensor produces an ap- proximate output of 4 mA in air and 20mA at the top range of free chlorine output (0-2ppm, 0-5ppm, 0-10ppm).

NOTE: The supply voltage to the Sensor must be 12-24 V DC with minimum of 250 mA. Maximum load is 1 Watt. The sensor has 3 wires, red (+) , black (-) and clear (shield). Twist together or solder black and clear if instrument does not have separate ground. If a separate ground is available such as for PLC’s connect clear (shield) to it. Attach the red wire to the power supply positive terminal (+)and the black wire to the PLC or DVM positive (+) terminal. Connect a wire (customer supplied) from the power suppy negative (-) and the PLC or DVM (-). See FIG 3. The Sensor will require several minutes to stabilize after power is supplied to it.

FIG. 3

Power Supply

PLC, DVM,...

sensor red wire

sensor black wire

SECTION 7.0

SENSOR CONDITIONING

7.0SENSOR CONDITIONING The sensor requires conditioning prior to generating stable values.

a.For new Sensors, allow the Sensor to run for at least

4 hours before calibration.

b.If the Sensor will be un-powered for 2 hours or more, run for 3 hours prior to use.

c.After membrane/electrolyte replacement, allow the Sensor to run for at least 4 hours.

M4679/0708 page 3 of 6

Parts covered by this product instruction sheet include: FCLTX-100 Series