Omega Engineering PH-2720-PA manual

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Table of contents for the manual

  • Page 1

    www .omega.com e-mail: info@omega.com U ser ’ s Guide Shop online at PH-2720-P A Preamplifier[...]

  • Page 2

    It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OME[...]

  • Page 3

    1. Wiring OMEGA PH-2720-P A pH/ORP Preamplifier Instr uctions SAFETY INSTRUCTIONS FOR IN-LINE ELECTRODE INSTALLATION 1. Do not remove from pressurized lines. 2. Do not exceed maximum temperature/pressure specifications. 3. Wear safety goggles or face shield during installation/service. 4. Do not alter product construction. Failure to follow safety [...]

  • Page 4

    3. Recommended Position 4. Installation 1 Preamplifier 2 Fitting inlet Hand tighten only! In-line Applications Preamplifier 1 2 Customer supplied pipe 3/4 in. NPT or ISO 7/1-Rc 3/4 Submersible Applications Sealant PH-31542-TC Sensor Cap (purchased separately) A. O-ring lubricant recommended (factory applied) A. O-ring lubricant recommended (factory[...]

  • Page 5

    5. Accessories 6. Specifications PH-2720-PA pH/ORP Preamplifier Housing material: CPVC Compatible sensors: PHE-3271 Flat Surface pH Electrode PHE-2716 Bulb pH Electrode ORE-2715 Flat Surface ORP Electrode ORE-2717 Bulb ORP Electrode Input Impedance: >10 11 Ω Operating temp.: 0 to 80 ° C Gain: X1 (unity) Input power: ± 4.5 to ± 8 VDC, dual s[...]

  • Page 6

    With simulator connected Ok with simulator connected but fails with electrode Error Condition A) mV output stuck at zero B) mV output erratic C) mV output stuck at 1.4 VDC A) mV output stuck near zero B) mV output erratic C) Output stuck at 1.4 VDC Possible Cause A) Shorted input signal B) Faulty preamplifier or wiring C) Faulty preamplifier A) Cra[...]

  • Page 7

    W ARRANTY /DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEG A ’ s W ARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA ’ s custo[...]

  • Page 8

    6-2720.090-OM/(B-1 1/01) M-2035/1 101 Where Do I Find Ever ything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at www.omega.com TEMPERA TURE   Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies   Wire: Thermocouple, RTD & Thermistor   Calibrators & Ice Point Referen[...]