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3-2750 pH/ORP Sensor

3-2750 pH/ORP Sensor. * Electrodes sold separately. Table of Contents. Description of Product(s) Theory of Operation Features, Advantages and Benefits Key Technical Specifications Target Applications Wiring/Installation Competitive Matrix Ordering Information.

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3-2750 pH/ORP Sensor

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  1. 3-2750 pH/ORP Sensor * Electrodes sold separately.

  2. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  3. Description of Product(s)3-2750 In-Line or Submersible pH/ORP Sensor 3-2750-3 Submersible Assembly 3-2750-1 or -2* In-Line Assembly Use with 3-8050-1,2* Universal Mount Kit OR 3-8052-1,2* 3/4” Integral Mount Kit. Use with +GF+ SIGNET fittings 0.5 to 4 in. OR 1-1/4 in. adapters (P31515) CPVC-0C200 PVC-0P200 PVDF-0V200 * Electrodes sold separately.

  4. pH Description of Product(s)3-2754 thru 3-2757 Combination Electrode ORP pH 3-2754 Flat -HF HF resistant 3-2756 Bulb (shown in B&W) -DI For < 100 uS 3-2755 Flat 3-2757 Bulb (shown in B&W) ORP

  5. Description of Product(s)3-8050-1,2* and 3-8052-1,2* PCB with internal calibration switches Dual Terminal Blocks for easy wiring Green LED for Visual Indication of calibration

  6. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  7. Theory of Operation 1. Unit outputs 4-20mA when input power exceeds 12 VDC 2. In Cal Mode unit has auto buffer recognition of pH 4, 7, 10 pH or 87, 264 mV’s ORP. 2a. RESET TO FACTORY - Remove electrode; push and hold button for 10 secs. LED steady ON, then OFF indicates reset (let go).2b. CAL - Push and hold button for 10 secs. LED steady ON, then OFF indicates proper calibration. 3. Calibration error indicated by blinking LED, previous values kept.

  8. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  9. Features, Advantages and Benefits2750 Sensor Electronics PBT In-Line Assembly CPVC Submersible Assembly Features: • 3/4” NPT(ISO coming) • DryLoc™Connection • Auto-BufferRecognition • 4-20 mA orS3L™Digitalsignal for planned products Advantages: • Simple ProcessConnection • Waterproof/Foulproof • Simplifiescalibration/use • Allows minimalstocking to meet applications -sets stage for multi-parametermeters Benefits: • Saves install./service time • Forgivingsystem vs. BNC • Reduces training • Saves OEM/Distributor $$’sinventory red.Common signal for future meters

  10. Features, Advantages and Benefits275X Electrodes Features: • DryLoc™ Connection • In-Line or Submersible • Double Junction • Long ReferencePath • Various Options Advantages: • Waterproof/Foulproof • One sensor typefor both • Two barriersfor reference • Accurate,reliable sensorreference • Can handle manyprocess types Benefits: • Secure connection • Simplifies maintenance • Provides long life expectancy • Greater accuracy and stability • User risk reduced with sensors available (Bulb electrode shown in B&W)

  11. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  12. Key Technical Specifications2750 Sensor Electronics General Compatible Electrodes: +GF+ SIGNET 3-275x pH/ORP Electrodes Operational Range: pH: 0.00 to 14.00 ORP: ± 2,000 mV Temp. : 0° C to 85° C (32 to 185°F) Response Time*: pH: < 6 s for 95% of change ORP: application dependent Temp : 140 seconds (2754), 196 seconds (2756) * includes response time of electrodes Enclosure: 2750-1&2 (in-line): NEMA 4X/IP65 2750-3 &4 (submersible): NEMA 6P/IP68 (with pipe extension and/or watertight conduit) Materials: 2750-1&2 (in-line): Valox® (PBT) 2750-3&4 (submersible): CPVC Weight: 2750-1&2 (in-line): 0.75 kg (1.65 lbs.) 2750-3&4 (submersible): 0.64 kg (1.41 lbs.) Immunity: EN 50082-2 Emissions: EN 50081-1 Electrical Cable: 4.5m (15 ft.), 3-conductor shielded 22AWG Power: 12 to 24VDC for 4 to 20mA Loop 5VDC ± 5% regulated, 3mA max. Current output: pH: Fixed 4 to 20mA, isolated, = 0.00 to 14.00 pH (custom scaling available) ORP: Fixed 4 to 20mA, isolated, = -1000 to 2000mV (custom scaling available from -2000 to 2000mV) Max Loop Resistance: 50 max. @ 12V 325 max. @ 18V 600 max. @ 24V • Accuracy: ± 32µA • Resolution: ± 5µA • Update Rate: 0.5 s • Error indication: 3.6mA • S3L output Serial ASCII, TTL level 9600 bps • Accuracy: pH: ± 0.03 pH @ 25° C (77°F) • ORP: ± 2mV @ 25° C (77°F) • Resolution: pH:  0.02 pH • ORP:  1mV • Temp.:  0.2°C • Update Rate: 0.5 seconds • Error indication: Initiates “Check Sensor” command via S3L output • Input Impedance, Z: >1011 • Environmental • Operating Temp.: 0° C to 85°C (32° to 185°F) • Storage Temp.: -20° C to 85°C (-4° to 185°F) • Relative Humidity: 0 to 95%, non-condensing • (without electrode connected) • Enclosure Rating: • 3-2750-1&2: NEMA 4X/IP65 with electrode connected • 3-2750-3&-4: NEMA 6P/IP68 with electrode and watertight conduit and/or extension pipe connected • Standards and Approvals • CE • Manufactured under ISO 9001 and ISO 14001

  13. Key Technical Specifications2754 and 2756 pH Electrodes • Primary Functions: • 2754: Flat surface resists fouling • 2756: Bulb surface for general use 2754-HF: Extended use in applications with trace hydrofluoric acid (<2%) • 2756-DI: Extended use in pure waters (< 100 µS) • Efficiency: >97%@ 25°C (77° F) • pH Response Time: < 5 s for 95% of signal change (for flat and bulb style electrodes) • Weight: 0.25 kg (0.55 lb) Operating Range: 0 to 14 pH Temperature: 2756: 0°C to 85°C (32° to 185°F) 2754: 10° to 85°C (50° to185°F) 2754-HF: 0° to 85°C (32° to 185°F) Storage Temperature: > -12° C (11° F) Pressure: 6.89 bar @ 0°C (100 psi @ 32° to 149°F) 4.00 bar @ 85°C (58 psi @ 150° to 185°F) Pipe Size Range: 1/2 in. and up. Use +GF+SIGNET installation fittings from 0.5 to 4.0 in. (use pipe adapter in pipes over 4 in.) Vertical mounting ±60° required. Submersion with 3-2750 sensor requires 3/4 in. NPT or ISO 7-1/R 3/4 male threaded extension pipe. Temperature Sensor: PT-1000 (1096.8 = 25°C) Response Time, =140 s (2754), 196 s (2756) Wetted Materials: CPVC Body Glass FPM - Viton® O-rings Porous UHMW Polyethylene reference junctions Reference: Electrolyte: Solidified Acrylamide Gel 3.5M KCI (2754, 2754-HF, 2756) 0.1 M KCl (2756-DI) Element: Ag/AgCl

  14. Key Technical Specifications2755 and 2757 ORP Electrodes • Operating Range: ORP: -2,000 to +2,000 mV • Operating Temperature/Pressure: • 6.89 bar @ 0°C(100 psi @ 32° to 149° F) • 4.00 bar @ 85°C (58 psi @150° to 185°F) • Storage Temperature: > -12° C (11° F) • Pipe Size Range: 1/2 in. and up. Use +GF+SIGNET installation fittings from 1/2 to 4 in. (use pipe adapters in pipes over 4 in.) Submersion with 3-2750 sensor requires 3/4 in. NPT or ISO 7-1 /R 3/4 male threaded extension pipe. • Efficiency: > 97% @ 25°C (77 °F) • ORP Response Time: Application dependent • Materials: CPVC Body • Glass • FPM-Viton® O-rings • Porous UHMW Polyethylene reference junctions • Platinum sensing surface • Reference: Solidified Acrlyamide Gel: 3.5M KCL saturated with AgCl • Element: Ag/AgCl • Primary Functions: 2755: Flat surface resists fouling • 2757: Bulb surface for general use • Weight: 0.25 kg (0.55 lb)

  15. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  16. Target Applications Application:Use: • Waste Treatment Systems Final Effluent Input to Recorder Input to Proportional Controller • Plating Systems Input to Proportional Controller • Aquatic Environmental Monitoring Process Input to Recorder • Cooling Towers Input to Proportional Controller • Pool/Spas/Fountains Input to Proportional Controller

  17. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  18. Wiring and Installation2750 (4-20 mA)

  19. Wiring and Installation2750 (S3L) * * Products under development: S3L™ pH/ORP devices and S3L to RS-232 adapter card / command set

  20. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  21. Competitive Matrix Information presented herein is deemed accurate as of July 5, 2001. +GF+ SIGNET is not responsible for changes in accuracy thereafter.

  22. Table of Contents • Description of Product(s) • Theory of Operation • Features, Advantages and Benefits • Key Technical Specifications • Target Applications • Wiring/Installation • Competitive Matrix • Ordering Information

  23. Ordering Information pH/ORP SensorsPart Number Code No. Description3-2750-1 159 000 744 In-Line pH/ORP Sensor3-2750-2 159 000 745 In-Line pH/ORP Sensor w/Cal3-2750-3 159 000 746 Submersible pH/ORP Sensor(NPT)3-2750-4 159 000 842 Submersible pH/ORP Sensor (ISO)pH Electrodes3-2754 159 000 747 Flat pH Electrode 3-2754-HF 159 000 748 Flat pH Electrode, HF-RES3-2756 159 000 750 Bulb pH Electrode3-2756-DI 159 000 751 Bulb pH Electrode, DI-RESORP Electrodes3-2755 159 000 749 Flat ORP Electrode3-2757 159 000 752 EXT TIP ORP ElectrodeJ-Box Accessories3-8050-1 159 000 753 UNI-MOUNT J-BOX3-8050-2 159 000 754 UNI-MT J-BOX, pH/ORP Cal3-8052-1 159 000 755 NPT MOUNT J-BOX3-8052-2 159 000 756 NPT-MT J-BOX, pH/ORP Cal3-9000.392-1 159 000 839 Liquid tight connector kit, NPT (1 connector)3-9000.392-2 159 000 841 Liquid tight connector kit, PG13.5 (1 connector)

  24. +GF+ SIGNET “Product” Conveyance Measurement Control

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