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Related Manuals for EUTECH INSTRUMENTS ALPHA PH 500 - REV 6
Summary of Contents for EUTECH INSTRUMENTS ALPHA PH 500 - REV 6
- Page 1 Alpha pH 500 2-Wire Transmitter pH / ORP...
- Page 2 ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent 6,793,787. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher.
- Page 3 Preface This manual serves to explain the use of the Alpha pH 500 transmitter. It functions in two ways, firstly as a step by step guide to help you to operate the transmitter. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the transmitter as possible.
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Page 4: Table Of Contents
TABLE OF CONTENTS INTRODUCTION PREPARATION Power Supply Requirements (SL2 Position) Connecting the Electrode & Temperature Probe (SL1 Position) 3 INSTALLATION Wall Mount Panel Mount DISPLAY AND KEYPAD FUNCTIONS Display Keypad CALIBRATION Preparing the Transmitter for Calibration pH Calibration Relative mV Calibration Temperature Calibration ADVANCED SETUP FUNCTIONS Offset Setting (Unavailable in ORP mode) -
Page 5: Introduction
INTRODUCTION Thank you for selecting an Alpha pH 500 pH/ORP Transmitter. This transmitter is a microprocessor-based instrument that is designed to be sturdy and user-friendly. It is capable of measuring pH, mV and temperature. This transmitter has many user-friendly features – all of which are completely accessible through the water-resistant membrane keypad. -
Page 6: Preparation
PREPARATION Remove screws from the four corners at the back of the Transmitter, and remove back cover. Connectors should be exposed as follows: Figure 1 – Connection Guide All wiring is done on 2 detachable connectors: – 9-pin connector (located on SL1 position) for pH electrode, temperature sensor and potential matching pin (PMP);... -
Page 7: Power Supply Requirements (Sl2 Position)
Power Supply Requirements (SL2 Position) This transmitter requires a 12 to 24V DC power supply. Other Transmitters and/or a chart recorder may be connected in series. Insert positive loop wire from power supply to pin 1, tighten screw. Insert negative loop wire to pin 2, tighten screw. This wire may be linked to a chart recorder or to negative terminal of power supply. - Page 8 2.2.2 To connect temperature probe: For Automatic Temperature Compensated (ATC) pH readings, a 100Ω Pt RTD temperature probes can be used. Industrial pH electrodes are often offered with ATC, which will typically be bare wires. 3-wire probe Insert Pt 100 sense wire to pin 5 of connector. Tighten screw. Insert Pt 100 input wire to pin 6 of connector.
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Page 9: Installation
INSTALLATION Wall Mount... -
Page 10: Panel Mount
Panel Mount 1. Prepare panel cut-out of Panel (side) 92.0 mm by 92.0 mm 2. Remove back cover of transmitter and slide it through panel cut-out 4. Thread rods through lugs until transmitter is held in place against panel 3. Atta ch lugs to either side of transmitter... -
Page 11: Display And Keypad Functions
DISPLAY AND KEYPAD FUNCTIONS Display The LCD has a primary and secondary display. • The primary display shows the measured pH, mV or Relative mV value. • The secondary display shows the measured temperature. In Calibration mode, pH buffer values are displayed here; while measured mV values are displayed in the ORP Calibration mode. -
Page 12: Keypad
Keypad The four-button keypad allows easy and quick operations of the Transmitter. Function Brings you directly into the Calibration mode. If you were in pH Measurement mode, press CAL to enter pH Calibration mode. If you were in mV Measurement mode, press CAL to enter mV Calibration mode. -
Page 13: Calibration
CALIBRATION Preparing the Transmitter for Calibration Before starting calibration, make sure you are in the correct measurement mode. When you switch on the transmitter, the transmitter starts up in the units last used. For example, if you shut the transmitter off in “mV” units, the transmitter will read “mV”... -
Page 14: Ph Calibration
pH Calibration A complete 2-point CAL is required for this Transmitter. If Calibration is aborted after 1st calibration point, transmitter reverts to previous Calibration data. Rinse probe thoroughly with de-ionized water or a rinse solution. Blot excess liquid. READY HOLD Dip probe into calibration buffer. -
Page 15: Relative Mv Calibration
Relative mV Calibration From the ORP MEAS mode, press CAL key. R.mV CAL indicator appears at top of LCD. Primary READY HOLD display shows relative reading secondary display shows absolute mV value. NOTE: If you have never calibrated relative mV or if the transmitter has been reset, the value shown in the primary display is the same as the R.mV... -
Page 16: Advanced Setup Functions
ADVANCED SETUP FUNCTIONS The advanced setup mode lets you customize your transmitter’s preferences and defaults. This transmitter features different sub groups that organize all setup parameters. The sub-groups are: Offset Setting (Unavailable in ORP mode) As a result of the continuous measurement and the application concerned, it may not be convenient to remove the electrode for calibration. -
Page 17: Output Range Setting
Output Range Setting Output of pH 500 transmitter is via the 2-wire power supply SETUP HOLD loop. Both the 4 mA and 20 mA output can be assigned to specific pH or ORP values, for a more refined output. Press ENT key and use ▲ or ▼ keys to scroll till LCD displays ‘r n g ’. -
Page 18: Temperature Compensation Setting (Unavailable In Orp Mode)
Temperature Compensation Setting (Unavailable in ORP mode) pH values other than pH 7.00 are affected by temperature. Under varying temperature conditions, use ATC to compensate pH values. If temperature of bath is constant, and a temperature probe is not available, Manual Temperature Compensation can be utilized. - Page 19 Press ENT key. Primary display shows ‘ATC’ and secondary display shows ‘On’ or ‘OFF’. Use ▲ or ▼ keys to select ‘ATC Off’. Press ENT. Primary display shows temperature (default is 25.0), and secondary display shows ‘P °C’’. This is the set up page for setting the temperature of your transmitter to the temperature of your process or sample by using an accurate thermometer as reference.
- Page 20 SETUP HOLD SETUP SETUP HOLD SETUP HOLD °C Temperature Compensation Setting Chart – alpha pH 500 Transmitter...
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Page 21: Hold Current Setting
HOLD Current Setting When Transmitter is in CAL or SETUP modes, it automatically SETUP goes into a ‘HOLD’ mode. HOLD To indicate Transmitter is in ‘HOLD’ mode, output current can be set to 22 mA output by activating the ‘HLD On’. Press ENT key and use ▲... -
Page 22: Configuration
Configuration 6.6.1 Selecting pH or ORP Mode of Operation The alpha pH 500 transmitter is not only a pH transmitter, but SETUP also an ORP transmitter. When configured to measure ORP, HOLD electrode must be changed and calibrated (see Section 5.3 for calibration procedure). - Page 23 ’ (asymmetrical operation). Use ▲ or ▼ keys to select LCD displays ‘ for ‘ ’ (symmetrical mode of operation). Press ENT key again. Press keys together, to return to MEAS mode.
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Page 24: Probe Care And Maintenance
PROBE CARE AND MAINTENANCE Since your pH electrode is susceptible to dirt and contamination, clean it every one to three months depending on the extent and condition of use. NOTE: For specialty electrode care, consult the instruction manual included with your electrode. - Page 25 Reactivating the pH electrode If stored and cleaned properly, your pH electrode should be ready for immediate use. However, a dehydrated bulb may cause sluggish response. To rehydrate the bulb, immerse electrode in a pH 4 buffer solution for 10 to 30 minutes. If this fails, the electrode requires activation.
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Page 26: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Problem Cause Solution Power on but no a). Loose connections a). Check cables are making good display contact. b). Cables not in correct polarity (+ and – position). b). Re-wire loop cables with correct polarity. Unstable readings a). -
Page 27: Specifications
SPECIFICATIONS SPECIFICATIONS DESCRIPTIONS pH Range 0.00 to 14.00 pH 0.01 pH / ± 0.01 pH Resolution / Accuracy -10.0 to 110.0 °C Temperature Range 0.1 °C / ± 0.5 for °C Resolution / Accuracy Millivolt Range -1000 to +1000 mV 1 mV / ±... -
Page 28: Technical Dimensions
10 TECHNICAL DIMENSIONS... -
Page 29: Accessories
11 ACCESSORIES THERMO SCIENTIFIC Replacement Transmitter and Transmitter accessories Ordering Code No. Item TSPHCTP0500 Alpha pH/ORP 2-wire LCD Transmitter ECARTSO05B Combination pH electrode with 5m cable ECARGTSO05B Combination pH electrode with PMP and 5m cable EC100GTSO05B Combination pH electrode with PT 100, PMP and 5m cable ECDA9350605B Combination pH electrode, submersible, with 5m cable ECHTAUTSO05B... - Page 30 EUTECH INSTRUMENTS Replacement Transmitter and Transmitter accessories Ordering Code No. Item 56717-20 pH 500 pH/ORP 2-wire LCD Transmitter with display 35807-20 pH/Temp electrode with PMP and 10-ft cable 35801-21 Platinum ORP electrode with 10-ft cable 05994-90 BNC to spade lug adapter Calibration Solutions Ordering Code No.
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Page 31: Warranty
12 WARRANTY This transmitter is supplied with a one-year warranty against significant deviations in material and workmanship from date of purchase and a six-month warranty for probe. Each instrument will have a warranty card with a specific serial number. The warranty card must be endorsed by the Authorized Distributor at the point of sale. - Page 32 Water Analysis Instruments North America 166 Cummings Center Beverly, MA 01915 USA Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 Dom. Fax: 1-978-232-6015 Int’l Fax: 978-232-6031 Europe P.O. Box 254, 3860 AG Nijkerk Wallerstraat 125K, 3862 CN Nijkerk, Netherlands Tel: (31) 033-2463887 Fax: (31) 033-2460832 Asia Pacific Blk 55, Ayer Rajah Crescent #04-16/24, Singapore 139949...