Aqua Metrix P/R65 Betriebsanleitung - Seite 6

Blättern Sie online oder laden Sie pdf Betriebsanleitung für Messgeräte Aqua Metrix P/R65 herunter. Aqua Metrix P/R65 20 Seiten. Differential 2-wire (4-20 ma) ph & orp probes

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3.3.

ORP (R65) 4-20 mA Probes

1. ORP 4-20 mA probes have four wires; black, red, green and white. The red wire is to be connected

to the +24 VDC terminal and the back wire to the 24 VDC common terminal via the load in the loop.

2. For an instrument with a range of 0 to 1000 mV the green and white wires are to be shorted.

3. For an instrument with a range of –500 to 500 mV the green and white wires are to be isolated from

each other.

3.4.

Submersion Mounting Series 8 Differential Probes

1. Refer to Figure 5.

2. A submersion mounting kit, STC60L is available from Water Analytics which includes 4 ft. of 1"

pipe, 1-1/2" x 1" reducer, a strain relief fitting and wire mounting bracket. Proceed as follows, either

with the kit or with your own hardware.

3. Apply a thread sealant to the thread on the cable end of the probe and screw a 1-1/2" x 1" NPT

reducer onto the probe. Route the sensor cable through an appropriate length of 1" pipe and using

thread sealant, screw the pipe into the reducer. The cable end of the probe should not be exposed

to the process. A cable strain relief fitting should be used on the upper end of the pipe. In the kits a

wire bracket is provided to aid in supporting the assembly.

NOTE: An optional protective shroud, Part No. PROTECTOR-3 should be used on the electrode

end of the probe to protect the electrodes from accidental contact with the tank bottom, sides or

objects in the process.

3.5.

Submersion Mounting Series 6 Differential Probes

1. Refer to Figure 4.

2. A submersion mounting kit, STC60-6 is available from Water Analytics which includes 4 ft. of 1"

pipe, 1-1/2" x 1" reducer and a strain relief fitting. Proceed as follows, either with the kit or with your

own hardware:

3. Install the optional protective shroud, Part No. PROTECTOR-6 on the probe by threading the probe

cable through it. The shroud will contact the shoulder on the probe.

4. Install the compression fitting components on the probe in the order shown in the drawing below so

that the pipe thread is towards the cable end of the probe. If you are concerned that the shroud

may get pushed up and expose the electrodes you can lock it down by the positioning of the fittings.

5. Snug up the nut of the compression fitting to locate it in the desired position. Hand tighten as much

as possible, then turn 1/2 turn with a wrench.

6. Apply a thread sealant to the pipe thread portion of the compression fitting and screw a 1-1/4" x 1"

NPT reducer to it.

7. Route the sensor cable through an appropriate length of 1" pipe and using thread sealant, screw the

pipe into the reducer on the probe. The cable end of the probe should not be exposed to the

process.

3.6.

Flow-through tee mounting Series 8 Differential Probes

1. Refer to Figure 5.

2. Apply pipe sealant to the electrode end of the probe and screw it into the AquaMetrix union tee w/

adaptor (Part No. AM-MH538N9A) or any standard 1-1/2" NPT tee.

P/R65

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