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計測機器 Aqua Metrix P/R65のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Aqua Metrix P/R65 20 ページ。 Differential 2-wire (4-20 ma) ph & orp probes

3. INSTALLATION

3.1.

Specific instructions for each type of probe are given in the following pages. Common to all probes

are the following instructions:

1. If the distance between the probe and the instrument is such that a direct connection is not possible,

the probe cable should be routed to a junction box with a terminal strip (AquaMetrix Part No. JB1).

The box should be well sealed and away from corrosion danger. Be sure that you have sufficient

slack cable to allow for probe removal for calibration and servicing.

2. Route the interconnect cable from the junction box to the instrument, preferably in metal conduit.

Do not run the power cable or control cables in the same conduit with the probe interconnect cable.

3. Remove the protective plastic caps from the end of the probe before placing in service.

4. For best results probes should always be mounted vertically with electrodes down. If this is not

possible, the probe must be at least 15° above horizontal.

3.2.

Connecting the P/R 60 to a PLC or AquaMetrix 2300

1. Refer to Figure 1 for configuring the probe for operation with a PLC or the AquaMetrix 2300 multi-

input controller.

2. For connecting to a PLC (or ammeter) with a separate 24 VDC power supply the wiring between the

PLC and power supply is in series as shown on the left side of to Figure 1. Note that some PLC's

as well as the AquaMetrix 2300 controller have powered inputs that eliminate the need for an

external power supply. The right side of to Figure 1 shows the connections to the analog connector

of the 2300.

PLC

Black Wire

Red Wire

Probe

Figure 1 - Left: Electrical connections for the P/R65, with a 24 VDC power supply and a PLC.

Right Electrical connection for the P/R65 with the AquaMetrix 2300 controller or a PLC with

P/R65

Power Supply

GND +24 V

Signal

Black Wire

Red Wire

24 VDC

Probe

24V 24V An1

An2

An3

An4

2300 Analog Connector Block

Gnd

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