User’s Guide Shop online at www.omega.com e-mail: info@omega.
OMEGAnet® Online Service www.omega.com Internet e-mail info@omega.com Servicing North America: USA: One Omega Drive, P.O. Box 4047 Stamford CT 06907-0047 TEL: (203) 359-1660 e-mail: info@omega.com ISO 9001 Certified Canada: 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 e-mail: info@omega.
OMEGA PH-2720-PA pH/ORP Preamplifier Instructions 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 instructions may result in severe personal injury! 1. Wiring Preamplifier: PH-2720-PA Brown Blue (mV Input) (Iso.
3. Recommended Position Customer supplied: • 3/4 in. NPT nipple (male) • J-box • flex conduit 3/4 in. NPT OR ISO 7/1-Rc 3/4 female threads C. B. D. A. Customer supplied: • 3/4 in. NPT threaded pipe (A) • J-box (B) • Flex conduit (C) • Quick release pipe clamp (D) • Tank flange (E) B. C. A. 0° ° -60 E. +60 2 in. min. ° In-Line Process pipe Open tanks • Vertical (0°) position optimum • 4 fps or less for max.
. Accessories Part no. Description Material PH-31542-TC Sensor cap PP FPP-1220-0021 Sensor O-ring, FPP-1224-0021 2 required FPP-1228-0021 Viton® EPR Kalrez CAUTION! When replacing O-rings, apply O-ring lubricant to sensor O-rings prior to preamplifier/electrode assembly. Unlubricated O-rings may score the preamplifier sealing surface. 6.
With simulator connected Ok with simulator connected but fails with electrode Error Condition Possible Cause Possible Remedy A) mV output stuck at zero B) mV output erratic C) mV output stuck at 1.4 VDC A) Shorted input signal B) Faulty preamplifier or wiring C) Faulty preamplifier A) Check preamplifier cable connections and shielding. B) Verify preamplifier shield connections. Verify cable shield wire has been maintained through each cable splice.
WARRANTY/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. OMEGA’s WARRANTY 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 customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation.
Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at www.omega.
