Related Manuals for EUTECH INSTRUMENTS ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 1)
Summary of Contents for EUTECH INSTRUMENTS ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 1)
- Page 1 Instruction Manual pH 500 LCD Transmitter 2-wire pH/ORP Transmitter with Display Technology Made Easy ... 68X216829 03/02 version 1...
- Page 2 Authorized Distributor. Eutech Instruments/ Oakton Instruments will not accept any responsibility for damage or malfunction to the transmitter caused by improper use of the instrument. Remember to fill in the guarantee card and mail it back to your authorized distributor or Eutech Instruments Pte Ltd.
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION PREPARATION Power Supply Requirements Connecting the Electrode and Temperature Probe 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) Output Range Setting Temperature Compensation Setting (Unavailable in ORP mode) -
Page 4: Introduction
INTRODUCTION Thank you for selecting a Eutech Instruments/ Oakton Instruments transmitter. The pH 500 pH/ORP 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 5: Preparation
Preparation Remove screws from the four corners at the back of the Transmitter, and remove back cover. Connectors should be exposed as follows: All wiring is done on the detachable 9-pin connector. Using a suitable screwdriver, loosen screws from top of connector. When inserting the wires, always hold connector with top screws facing up. -
Page 6: Connecting The Electrode And Temperature Probe
Connecting the Electrode and Temperature Probe To connect the pH or ORP electrode: The Eutech Instruments pH transmitter uses any pH reference standard pH or ORP. Clear sheath pH sensing Insulation Remove BNC connector from cable. Two wires Screen will be exposed: Strip insulation, just enough to expose bare wires. -
Page 7: Installation
INSTALLATION Wall Mount... -
Page 8: 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. Attach lugs to either side of transmitter... -
Page 9: 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 10: 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 11: Calibration
CAL IBRATION 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 12: Ph Calibration
pH Calibration A complete 2-point CAL is required for this Transmitter. If Calibration is aborted after 1 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 13: 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 14: 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 15: Output Range Setting
Output Range Setting Output of pH 500 transmitter is via the 2-wire power supply SETUP loop. Both the 4 mA and 20 mA output can be assigned to HOLD specific pH or ORP values, for a more refined output. Press ENT key and use keys to scroll till LCD ▲... -
Page 16: Temperature Compensation Setting (Unavailable In Orp Mode)
Temperature Compensation Setting (Unavailable in ORP mode) pH values other than pH 7.00 is affected by temperature. Under varying temperature conditions, use ATC to compensate pH values. If temperature of bath is constant, then select Manual Temperature Compensation. 5.3.1 Automatic Temperature Compensation For automatic temperature compensation (ATC), connect ATC probe to transmitter, as described in Section 3.2, page 5. - Page 17 ▲ or ▼ keys to set temperature of sample. Press ENT key. Primary display shows temperature (default is 25.0), and secondary display shows ‘ ’. Input temperature of your calibration solutions. Press ENT key. Press keys together, to return to MEAS mode. The transmitter will now compensate pH readings for the manually set temperature (values taken from P SETUP...
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Page 18: Hold Current Setting
HOLD Current Setting When Transmitter is in CAL or SETUP modes, it automatically goes into a SETUP HOLD ‘HOLD’ mode. 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 19: Configuration
Configuration 5.6.1 Selecting pH or ORP Mode of Operation The alpha pH 500 transmitter is not only a pH transmitter, but also an ORP SETUP transmitter. When configured to measure ORP, electrode must be changed HOLD and calibrated (see Section 5.3 for calibration procedure). ORP values are measured and displayed in mV only. -
Page 20: Probe Care And Maintenance
PROBE CARE AND M AINT ENANCE 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 pH electrode storage For best results, always keep the pH bulb wet. - Page 21 Protein deposits: Prepare a 1% pepsin solution in 0.1 M of HCl. Set • the electrode in the solution for five to ten minutes. Rinse the electrode with distilled water. Reactivating the pH electrode If stored and cleaned properly, your pH electrode should be ready for immediate use.
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Page 22: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Problem Cause Solution Power on but no display a). Loose connections a). Check cables are making good contact. b). Cables not in correct polarity (+ b). Re-wire loop cables with correct and – position). polarity. Unstable readings a). -
Page 23: 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 24: Technical Dimensions
TE CHNICAL DIM ENS IONS... -
Page 25: 10 Acce Ss Ories
10 ACCE SS ORIES EUTECH INSTRUMENTS Replacement Transmitter and Transmitter accessories Ordering Code No. Item EC-PHCTP0500 Alpha pH/ORP 2-wire LCD Transmitter EC-ARTSO-05B Combination pH electrode with 5m cable EC-ARGTSO-05B Combination pH electrode with PMP and 5m cable EC-100GTSO-05B Combination pH electrode with PT 100, PMP and 5m cable... - Page 26 OAKTON INSTRUMENTS Replacement Transmitter and Transmitter accessories Ordering Code No. Item Alpha pH/ORP 2-wire LCD Transmitter Combination pH electrode with 5m cable Combination pH electrode with PMP and 5m cable Combination pH electrode with PT 100, PMP and 5m cable Combination pH electrode, submersible, with 5m cable Combination Gold ORP electrode with PMP and 5m cable Combination Platinum ORP electrode with PMP and 5m cable...
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Page 27: 11 Warrant Y
A restocking charge will be made on all unauthorized returns. NOTE: Eutech Instruments Pte Ltd reserves the right to make improvements in design, construction, and appearance of products without notice. For more information on Eutech Instruments products, contact your nearest Eutech... - Page 28 For more information on our products, contact your nearest distributor or visit our website listed below: DISTRIBUTED BY: Eutech Instruments Pte Ltd. Oakton Instruments P.O Box 5136, Vernon Hills, Blk 55, Ayer Rajah Crescent, IL60061, USA #04-16/24 Singapore 139949 Tel: Toll free 1-888-4OAKTON...
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