Related Manuals for XS Instruments COND 7 Plus
Summary of Contents for XS Instruments COND 7 Plus
- Page 1 7+ Series pH/Conductivity Portable Meter Manual pH 7+ DHS Portable pH Meter COND 7+ Portable Cond. Meter PC 7+ DHS Portable pH/Cond. Meter 7+Series Version 2.0...
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Page 2: Table Of Contents
Index Introduction ..................................4 Measurement parameters ..............................4 Basic features ..................................4 pH measurement features (suited for model pH7+DHS and PC7+DHS) ................4 Conductivity measurement features (suited for model COND7+ and PC7+DHS) ............... 4 Data sheet ................................... 5 Instrument Description ............................... 6 LCD Display .................................. - Page 3 Temperature coefficient ..............................15 Avoid contamination of standard solution ........................15 Conductivity Calibration ..............................16 Customer calibration ................................ 16 Measure .................................... 17 Factory default setting ..............................17 Conductivity electrode maintenance ..........................18 Relations between TDS and conductivity ......................... 18 Setup Menu ..................................18 Main menu..................................
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Page 4: Introduction
Introduction Thanks for purchasing 7+ series portable pH/Conductivity meter. This meter is perfect combination of the most advanced electronics, sensor technology and software design, and is the most cost effective portable electrochemical meter suited for industrial and mining enterprises, power plant, water treatment engineering, environmental protection industry, etc, especially suited for application in field. -
Page 5: Data Sheet
Data sheet Specifications Models （0.00 ~ 14.00）pH Range Resolution 0.1/0.01 pH Accuracy ±0.01 pH ±1digit Temperature （0 ~ 100）°C（manual or automatic） compensation pH 7+ Multi-point calibration 1-3 point PC 7+ USA: 1,68 - 4,00 - 7,00 - 10,01pH Buffer value NIST: 1,68 - 4,01 - 6,86 - 9,18pH 2 value CUSTOMER Range... -
Page 6: Instrument Description
Instrument Description LCD Display (1) — Parameter mode icons (2) — Measurement reading (3) — Prompts of special display mode (4) — Units of measurement (5) — Temperature units (°C and °F) (6) — Units of pH and conductivity calibration value (7) —... -
Page 7: Meter Connections
Keypad Operations Descriptions • In the power-off mode, press this key to turn on the meter • Momentary press In the calibration mode or the parameter set-up mode, press this key to return to the measurement mode In the measurement mode, press and hold this key for 2 seconds to turn off the Long press meter. -
Page 8: Stability Indication
Stability indication When the measuring value is stable, smiley icon appears on LCD. If the smiley icon does not appear or flash, please do not get the reading value, or make calibration until the measuring value is stable. In the parameter P1.6, there are 3 criteria for stability standard: -Normal (default) -High (longer time) Low (shorter time.) -
Page 9: Ph Measurement
pH Measurement pH electrode information On this meter is possible to use electrode with integrated temperature sensor else link two different probes for pH and temperature. The BNC socket of electrode connects pH socket, RCA socket connects temperature socket. When dip the electrode in the solution, please stir the solution briefly and allow it to stay in the solution until a stable reading is reached. -
Page 10: Ph Meter Calibration
pH Meter Calibration Press key to enter into the calibration mode, “CAL 1” blinks at the top right of LCD and “7.00 pH ”blinks at the bottom right of LCD, indicating using pH 7.00 buffer solution to make the 1 point calibration. -
Page 11: Customer Calibration
Customer calibration example of 1.60pH and 6.50pH calibration solution Select CUS in the setup menu P1.1 (please refer to clause 7.3 for customer-defined solution). The meter enters into Customer-defined calibration mode. Press key, the meter’s display show a blinking CAL1 icon at the top right of LCD, indicating the meter enters into the 1 point customer-defined calibration. -
Page 12: Measurement
Measurement Rinse pH electrode in pure water, allow it to dry, and submerge it in tested solution. Stir the solution briefly and allow it to stay in the tested solution until icon appears on LCD and a stable reading is reached which is pH value of tested solution. -
Page 13: Ph Electrode Maintenance
pH electrode maintenance Daily maintenance The soaking solution contained in the supplied protective bottle is used to maintain activation in the glass bulb and junction. Loosen the capsule, remove the electrode and rinse in pure water before taking a measurement. Insert the electrode and tighten the capsule after measurements to prevent the solution from leaking. -
Page 14: Orp
ORP measurement does not require calibration. When the user is not sure about ORP electrode quality or measuring value, use ORP standard solution to test mV value and see whether ORP electrode or meter works properly. Clean and activate ORP electrode After the electrode has been used over long period of time, the platinum surface will get polluted which causes inaccurate measurement and slow response. -
Page 15: Calibration Intervals
Calibration intervals • The meter is calibrated before leaving the factory and can generally be used right out of the box. • Normally perform calibration per month. • For high accuracy measurements or large temperature deviation from the reference temperature (25°C), perform calibration per week. -
Page 16: Conductivity Calibration
Conductivity Calibration example of calibration at 1413μS/cm Rinse conductivity electrodes in pure water, allow it to dry, wash with a little of standard solution and submerge it in standard solution. Stir the solution briefly and allow it to stay in the solution until a stable reading is reached. Press key to enter into the calibration mode. -
Page 17: Measure
temperature value blinks when press key, press key to adjust the temperature value, and when press key, conductivity value blinks. Only 1-point calibration for customer-defined calibration. The value set in “customer-defined” is at a fixed temperature. There is no regulations of temperature coefficient and reference temperature. The meter has to perform calibration and measurement at the same temperature to avoid large error. -
Page 18: Conductivity Electrode Maintenance
Conductivity electrode maintenance Always keep the conductivity electrode clean. Before taking a measurement, rinse the electrode in pure water and then rinse it in the sample solution. When submerge the electrode in solution, stir the solution briefly to eliminate air bubbles and allow it to stay until a stable reading is reached. - Page 19 Main menu of parameter setting Submenu of pH parameter setting P1.1 Select pH standard solution P1.4 Select resolution P1.5 Restore to factory setting P1.6 Set stability criteria P1.7 Temperature calibration Submenu of conductivity parameter setting P2.1 Select electrode constant P2.2 Select conductivity standard solution P2.5 Select reference temp.
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Page 20: Submenu Of Ph Parameter Setting (Ph7+Dhs, Pc+Dhs)
Submenu of pH parameter setting (pH7+DHS, PC+DHS) Select pH standard solution (USA-NIST-CUS) In P1.0 mode, press to enter in P1.1, refer to the left Diagram. When press key, USA blinks, press directional keys to select blinking NIST→CUS. When parameter blinks, press to confirm ( USA series: 1,68 pH, 4.00 pH, 7.00 pH, 10.01 pH, NIST series: 1,68 pH, 4.01 pH, 6.86 pH, 9.18 pH, CUS –... -
Page 21: Submenu Of Conductivity Parameter Setting (Cond7+, Pc7+Dhs)
Submenu of conductivity parameter setting (COND7+, PC7+DHS) Select electrode constant (1.0-10.0-0.1) In P2.0 mode, press key to enter in P2.1 mode, please refer to the left Diagram. Press key, 1.0 blinks, then press directional keys to select blinking 10.0→0.1, when parameter blinks, press key to confirm. -
Page 22: Submenu Of Tds Parameter Setting (Cond7+, Pc7+Dhs)
Submenu of TDS parameter setting (COND7+, PC7+DHS) Adjust TDS factor (0.40…1.00) Press key, 0.71 blink, then press keys to adjust the value 0.40-1.00. Press key to confirm the coefficient and return to the measurement mode. Submenu of standard parameter setting (pH7+DHS, COND7+, PC7+DHS) Select temperature unit (°C—°F). -
Page 23: Appendix I: Parameter Setting & Factory Default Setting
Appendix I: Parameter setting & Factory default setting Restore to factory Modes Prompts Parameter setting items Abbreviation Description default P1.1 Select pH buffer solution USA－NIST－CUS P1.4 Select resolution 0.01－0.1 0.01 Restore to factory default P1.0 P1.5 No－Yes setting P1.6 Set reading stability criteria Normal—High—Low Normal Temperature... -
Page 24: Appendix Ii: Abbreviation Glossary
Appendix II: Abbreviation Glossary Code and Modes Prompts In English Description abbreviation P1.1 Standard buffers Standard buffer solution P1.4 Resolution Resolution P1.0 P1.5 Factory default setting Factory default setting Set up reading stability P1.6 Stability criteria criteria P1.7 Temperature Calibration Temperature Calibration P2.1 Cell...
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