Camlab CW/6210 2/5/06 3:30 pm Page 3 Table of Contents Page Scope of delivery .............. 4 System description ............4 Connections ..............5 Display ................7 Keypad ................7 Start up ................8 Measurement ..............9 Configuration of the unit ..........11 Selection of measuring function [pH] –...
Camlab CW/6210 2/5/06 3:30 pm Page 4 1. Scope of delivery Standard: • pH Meter • Batteries, 4 x AA 1,5 V cells • Operating instructions • Carrying strap Set: • pH Meter • Batteries, 4 x AA 1,5 V cells •...
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Camlab CW/6210 2/5/06 3:30 pm Page 5 The permanent protective plating on the unit serves not just as impact protection but also as a storage compartment for the electrode and as an anti-slip de- vice when the meter is used in an upright position.
Camlab CW/6210 2/5/06 3:30 pm Page 6 An internal memory for 20 results is integrated in the unit as standard. The memory stores location, result and temperature. The memory is called up via the display. Rel mV °C °C MEAS °F...
Camlab CW/6210 2/5/06 3:30 pm Page 7 4. Display Main diplay: Result or Rel mV user prompt [mV] Redox voltage, absolute °C [Rel mV] Redox voltage, relative to the hydrogen electrode (DIN 38404) °C MEAS [pH] pH level °F HOLD...
Camlab CW/6210 2/5/06 3:30 pm Page 8 6. Start up The unit is supplied with integrated batteries as stan- dard and is therefore ready for immediate use. You have to unscrew the unit to insert or change the batteries. When inserting the batteries, ensure correct...
Camlab CW/6210 2/5/06 3:30 pm Page 9 is defective, the display still shows pH or mV results. However, these results are not valid results! The electrode or temperature sensor must be plug- ged in before the unit is switched on.
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Camlab CW/6210 2/5/06 3:30 pm Page 10 The display shows Auto/Hold in alternating mode to- gether with the result. Once a stable reproducible value is present, the result is shown permanently in the display ("frozen”). The display also shows HOLD and the automatically set or manually entered temperature.
Camlab CW/6210 2/5/06 3:30 pm Page 11 8. Configuration of the unit To configure the unit, press the [Menu] key. The first menu item appears. Menu If you press the [Menu] key again, the display jumps to the next menu item.
Camlab CW/6210 2/5/06 3:30 pm Page 12 8.2 CAL = Calibration: selection of ca- libration (only with pH function) You can choose between 1, 2 and 3-point calibration. 1-point calibration: Calibration of the pH electrode is performed at a ran- dom point.
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Camlab CW/6210 2/5/06 3:30 pm Page 13 Percentage calculation of the electrode status is ba- sed both on asymmetry potentials and on slopes (gra- dient of the pH characteristic) of the electrode. The electrode condition is then determined by the worst result.
Camlab CW/6210 2/5/06 3:30 pm Page 14 8.4 Selection of temperature unit °C /°F • °C All temperature values in degrees Celsius • °F All temperature values in degrees Fahrenheit (°C = 0.556*°F-17.8 or °F = 1.8*°C+32) 8.5 Power off: automatic unit...
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Camlab CW/6210 2/5/06 3:30 pm Page 15 • standard series (25 °C): pH 4.00, pH 7.00 and pH 10.00 • DIN 19266 series (25 °C): pH 1.68 (A), pH 4.01 (C), pH 6.87 (D), pH 9.18 (F) and pH 12.45 (G) •...
Camlab CW/6210 2/5/06 3:30 pm Page 16 Performing calibration If you have not already done so, select the measuring mode 'pH' (see Configuration) and ensure that (de- pending on your requirements), 1-point, 2-point or 3- point calibration is active in the configuration setting...
Camlab CW/6210 2/5/06 3:30 pm Page 17 DIN 19266 series Values at 25 °C: 1.68pH(A), 4.01pH(C), 6.87pH(D), 9.18pH(F),12.45pH(G) Manual buffer setting If you want to use buffers other than those in the Tin- tometer standard or DIN series, you can choose ma- nual buffer adjustment here.
Camlab CW/6210 2/5/06 3:30 pm Page 18 Without temperature sensor: manual input of temperature of solution 1 °C You can enter the actual temperature of the buffer so- lution using the keys. [▲] [▼] The value is stored when you press the [Store] key, and the system shows the next calibration step.
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Camlab CW/6210 2/5/06 3:30 pm Page 19 lutions are used, the system automatically detects the pH value of the solution. If the display flashes and switches between different buffers, this means that no valid buffer has been de- tected. [CAL.2] appears in the secondary display until the va- lue is stable;...
Camlab CW/6210 2/5/06 3:30 pm Page 20 9.5 Calibration point 3: 'CAL. 3' (only with 3-point calibration) Insert the electrode and the temperature sensor (if present) in buffer solution 3 (e.g. standard series pH 10.00). In the case of manual buffer setting, [Pt.1] appears in the secondary display.
Camlab CW/6210 2/5/06 3:30 pm Page 21 You can enter the temperature of the third buffer solu- tion using the keys. [▲] [▼] The value is stored when you press the [STORE] key, Store and the status of the electrode is displayed.
Camlab CW/6210 2/5/06 3:30 pm Page 22 You can use keys to switch between the stored [▲] [▼] results. As soon as you press the [STORE], [MEAS] or [HOLD] Store Hold Store Hold key, the unit reverts to the corresponding measuring mode.
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Camlab CW/6210 2/5/06 3:30 pm Page 23 Display Cause Remedy No display Batteries are empty Insert new batteries or strange symbols. Batteries incorrectly Check batteries Unit does not react inserted when keys are System error Disconnect batteries, pressed wait for a short time,...
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Camlab CW/6210 2/5/06 3:30 pm Page 24 pH-Calibration CAL.-Err.1 Asymmetry Clean electrode, inadmissible: re-calibrate Electrode defective If error repeated -> replace electrode Buffer solution Use fresh buffer unusable solution CAL.-Err.2 Slope too small Replace electrode Electrode defective Buffer solution Use fresh buffer...
Camlab CW/6210 2/5/06 3:30 pm Page 25 12. Technical data • Indicating ranges: Temperature -10,0 ... +110,0°C/ 14.0 ... 230.0°F 0,1 °C bzw. 0.1°F Resolution 0,00 ... 14,00 pH Resolution 0,01 pH Redox (ORP) -1999 ... +2000 mV - 1792 ... +2206 Rel mV(based on hydrogen system in acc.
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Camlab CW/6210 2/5/06 3:30 pm Page 26 • Input current: <1 pA • Nominal temperature: 25°C • Operating temperature: 0 to +50°C • Storage temperature: -20 to +70°C • Memory: 20 result memory locations • Power supply: 4*1.5V batteries, type AA operating life up to >15000h...
Camlab CW/6210 2/5/06 3:30 pm Page 27 • Recommended redox electrodes: reference system: silver/silver chloride, electrolyte: KCl, 3 mol/l (only use this type when converting to hydrogen "Rel mV"!) • CE EN 55022: 6/1993 class B EN 50082-1 (EN 61000-4-6, EN...
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Camlab CW/6210 2/5/06 3:30 pm Page 28 camlab Choice, Service and Trust Camlab Limited , Camlab House, Norman Way, Over Cambridge CB4 5WE Tel: 01954 233110 • Fax: 01954 233101 www.camlab.co.uk Technical changes may occur without notice...