OPERATING INSTRUCTION MANUAL MODEL P/R60 & P/R65 DIFFERENTIAL PH & ORP PROBES N116-19 REV. 10 AquaMetrix Inc. 1245 Maple Hill Court, Unit 7 Newmarket, ON Canada, L3Y 9E8 P/R60 & P/R65 Tel: (800) 742-1413 (905) 954-0841 Fax: (905) 954-0415 www.aquametrix.
TABLE OF CONTENTS 1.0 GENERAL INFORMATION 4 2.0 SPECIFICATIONS 5 3.0 INSTALLATION 6 3.1 General Instructions 6 3.2 ORP 4-20 mA Probes, R65 6 3.3 Submersion Mounting Series 8 Differential Probes 6 3.4 Submersion Mounting Series 6 Differential Probes 7 3.5 Flow-through tee mounting Series 8 Differential Probes 7 3.6 Flow-through tee mounting Series 6 Differential Probes 7 3.7 Sanitary Probe P60S, P65S, R60S, R65S 7 3.8 Insertion mounting Series 4 Differential Probes 8 3.
6.0 DRAWINGS 14 6.1 N106-61 SERIES 4 DIFFERENTIAL pH/ORP PROBES 14 6.2 N106-183 SERIES 6 DIFFERENTIAL pH/ORP PROBES 15 6.3 N106-184 SERIES 7 DIFFERENTIAL pH/ORP PROBES 16 6.4 N106-182 SERIES 8 DIFFERENTIAL pH/ORP PROBES 17 6.5 N106-62 SERIES S DIFFERENTIAL pH/ORP PROBES 18 6.6 N105-73 INSTALLATION OF SERIES 6 DIFFERENTIAL PROBES 19 6.7 N106-79 INSTALLATION OF SERIES 7 DIFFERENTIAL PROBES 20 6.8 N105-72 INSTALLATION OF SERIES 8 DIFFERENTIAL PROBE 21 6.
1.0 GENERAL INFORMATION This manual covers all AquaMetrix P60, P65, R60 and R65 Series differential measurement pH and ORP probes. All mounting configurations are described. Both those probes with encapsulated preamplifiers and those with encapsulated two-wire transmitters are covered. If your probe has five wires it has an encapsulated preamplifier (P60 and R60). If your probe has two wires, or in the case of an ORP probe four wires, it has an encapsulated two-wire transmitter (P65 and R65).
2.0 SPECIFICATIONS MEASURING RANGES: pH: 0 to 14.00 pH ORP: R60: +1999 mV R65: 0-1000 mV / +500 mV field selectable PRESSURE LIMIT: 100 psig @ 65°C 40 psig @ 95°C FLOW RATE: 10 ft./sec max.
3.0 INSTALLATION 3.1 General Instructions 3.1.1 Specific instructions for each type of probe are given in the following pages. Common to all probes are the following instructions: a) 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.
3.4 Submersion Mounting Series 6 Differential Probes Refer to Dwg# N105-73 3.4.1 a) A submersion mounting kit, STC60-6 is available from AquaMetrix 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: b) 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.
3.8 Insertion mounting Series 4 Differential Probes 3.8.1 Apply pipe sealant to the electrode end of the probe and screw it into the any standard 1-1/2” Male NPT. 3.9 Hot/Wet tap insertion mounting Series 7 Differential Probes Refer to Dwg# N106-79 3.9.1 a) A ball valve assembly, P60-HTC, is available from AquaMetrix which includes the assembly and a safety shroud. b) Mount the ball valve assembly in a desirable location. The assembly comes with a field selectable, 1-1/4 NPTF or socket adaptor.
4.2 Replacement of Salt Bridge for Series 4, 6, 7 & S Differential Probes 4.2.1 a) If the system cannot be calibrated after cleaning the probe, it may be necessary to replace the standard cell solution. A kit is available from AquaMetrix for this purpose (Part No. C35-17K). Proceed as follows: Refer to DWG N106-60. b) Hold the probe vertically with the sensor face up. Insert long nose pliers in the blind holes in the salt bridge and turn counter-clockwise taking care not to damage the glass electrode.
5.0 TROUBLESHOOTING AND SERVICE 5.1 Checking 5-wire Differential Probes P60 and R60 The probe can be checked by a few simple measurements. Two pH buffer solutions, 7 pH and either 4 pH or 10 pH, and a multimeter are required. For ORP probes two calibration solutions, 200 and 600 mV, are required. Millivolt solutions may be ±20% of nominal value. Actual value is noted on the bottle. 5.1.1 P60C pH probes a) Clean the probe as described in Section 4.1.
f) Measure the voltage between the red and green wires. The reading should be between 160 and 240 mV; otherwise, the probe is defective. If the voltage is OK proceed to the next step. g) Rinse the probe and place it in 600 mV solution. Allow it to stabilize then check the voltage again between the red and green wires. If the voltage is between 560 and 640 mV, the probe is within specifications. 5.
5.2.2 ORP Probes R65 a) Disconnect the red wire at the instrument or power supply and connect it to the milliammeter (-) black. Connect the milliammeter (+) red to the instrument or power supply red wire output terminal. b) For a probe with range of –500 to 500 mV: (white and green wire open). Rinse the probe and place it in the 200 mV solution. The milliammeter should read between 14.4 and 16.0 mA. Rinse the probe and place it in the 600 mV solution. The meter should read between 19.55 and 20.45 mA.
5.5 Probe Return 5.5.1 If you are returning a probe for inspection, enclose description of the problem. Pack the probe adequately to avoid damage to the glass electrode and ensure that it will not be exposed to temperatures below –5°C. AquaMetrix cannot be responsible for shipping damage nor for damage due to frozen electrodes. For safety reasons, AquaMetrix cannot accept probes which have not been thoroughly cleaned to remove all process material.
6.0 DRAWINGS 6.
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