Nova-tech 2700 Series Benchtop Meters Manuale Utente

TechnologyMadeEasy... Instruction Manual 2700 Series Benchtop Meters pH 2700 ● ION 2700 ● CON 2700 ● DO 2700 ● PC 2700 Part of Thermo Fish

6Stability Criteria The 2700 allows adjustment of the Stable indicator which relates to how fast and frequent it appears. There are three levels of a

7Data Log (storing data to internal memory) Select “SINGLE” to manually save one point at a time. Press the “MEM IN” function key any time during me

8Date & Time Setting the correct date and time is required for GLP and will apply to power off, measurement, data log, and print functions. Instr

9Factory Reset Select “YES” to reset the 2700 to the factory default settings except; Date & Time, Temperature calibration, and data stored in me

104. Setup pH & mV Use Setup pH or mV mode to customize these parameters. Note: mV setup offers Sample ID and Alarm setting only. Press from

11Cal Points Specify the number of pH calibration points you intend to calibrate with. Select the number of calibration points from 1 to 5 with prese

125. pH Calibration (with preset buffer group) For best results, periodic calibration with known accurate standards is recommended prior to measurem

13 4) The primary display is the un-calibrated measured value. The 2700 automatically searches for and selects the appropriate value from your

146. pH Calibration (with custom buffers) Buffer Group pH Values CUSTOM Any 2 - 5 values, ≥ 1.0 pH unit apart 1) Turn meter on, press MODE if ne

155) Rinse the pH and ATC electrodes then submerse in next custom pH buffer. Use any pH value that is at least 1.0 pH unit from custom pH standards

167. Millivolt (mV) Calibration (Offset Adjustment) Oxidization Reduction Potential (ORP or Redox) as measured by an ORP electrode in mV units is no

178. Temperature Setup Use Setup Temperature mode to desired temperature units; º C or º F. Press from the measurement screen and then press ENTE

189. Temperature Calibration The thermistor sensor used for automatic temperature compensation and measurement is both accurate and stable, so requi

1910. Conductivity, TDS, Salinity, & Resistivity Setup Use Setup mode to customize Conductivity, TDS, Salinity, & Resistivity parameters. P

20automatic calibration is recommended. Otherwise, manual calibration should be selected. The factory default is automatic conductivity calibration

21Note: this option does not apply to Salinity mode. For more information, see Section 20—Calculating Temperature Coefficients. Normalization Temper

22Alarm The 2700 offers a visual and audible alarm to alert you when the High or Low values that have been set from this menu are exceeded. “High

2311. Conductivity Calibration (automatic) For best results, periodic calibration with known accurate standards is recommended prior to measurement.

245) For multi-point calibration repeat steps 2 & 3 with additional standards. Press ESC to save the calibration, or press NEXT to view the cali

2512. Conductivity, TDS, Salinity, & Resistivity Calibration (manual adjustment) For best results, periodic calibration with known accurate sta

TABLE OF CONTENTS 1. Introduction...1 2. Getting Started...

26 Before and after a manual calibration 5) For multi-point calibration repeat with additional standards. Press ESC to save calibration or pre

2713. Ion Setup Use Setup Ion mode to customize this parameter. Press from the measurement screen and then press ENTER when ION is selected. Samp

28Cal Due When enabled, the “Cal Due” indicator blinks if the number of days since the last calibration has been exceeded. Set the number of days fro

2914. Ion Calibration The ION 2700 can measure ion concentration such as ammonia or fluoride when using an ion selective electrode (ISE) for the spe

30 Before and after a two point ion calibration using 0.001 and 0.01 standards 5) The mV/decade slope value will be displayed if t

3115. Dissolved Oxygen Setup Use Setup Dissolved Oxygen mode to customize the parameter. Press from the measurement screen and then press ENTER w

32Pressure Cal (% saturation mode only) The DO 2700 includes a built-in barometer that is factory calibrated. While frequent pressure adjustment is n

33Salinity Value (concentration mode only) Enter the salinity value of your samples in parts per thousand (ppt) units. Select from 0 to 50.0 ppt.

3416. Dissolved Oxygen Calibration The DO 2700 utilizes a self-stirring polargraphic electrode with a built-in temperature sensor. The electrode is

350% Calibration 7) After completing steps 1 thru 6 for 100% saturation calibration, place your electrode in zero oxygen solution (0.08M sodium sul

Sample ID ...27 Measure Unit...

36Additional dissolved oxygen calibration notes: • Keep the membrane free from contact with solid objects. • Use with aqueous solutions only. •

3717. Transferring and Printing Data To send data directly to a printer or PC, connect the 30X427301 / 35420-01 cable to the RS-232 output port of t

3818. Calibration Report Calibration report provides detailed information on the most recent calibration. It includes date & time, calibration s

39Solubility of oxygen in water contact with water saturated air at standard atmospheric pressure02468101214160 5 10 15 20 25 30 35 40 45 50Temperatu

40another way to analyze DO levels. % saturation is the measured DO level divided by the greatest amount of oxygen that the water could hold under v

41Applications Oxygen is essential for fish, invertebrate, plant, and aerobic bacteria respiration. DO levels below 3 ppm are stressful to most aqua

4220. Calculating Temperature Coefficients To determine the temperature coefficient of your sample solution use this formula: Where: tc = Te

4321. Calculating TDS Conversion Factor You can calibrate TDS using the value of the calibration standard solution at a standard temperature such as

4422. DO Electrode Maintenance Changing the Membrane Cap The DO 2700 electrode utilizes a cap attached to a pre-installed membrane that is easily re

4523. Troubleshooting Parameter Cause Solution pH Won’t accept 1st calibration point New calibrations must begin with neutral standard (7.00 or 6

11. Introduction Thank you for selecting our 2700 series research benchtop meter. This microprocessor-based instrument incorporates a large LCD for

46sensor. DO Instrument will not read zero in sodium sulfite solution Solution contains oxygen—use fresh solution. Replace membrane and recondition

4724. Specifications We reserve the right to make changes, improvements and modifications to the specifications listed here. pH pH 2700, ION 2700

48Conductivity CON 2700, PC 2700 only Range 0.050 µS to 500.0 mS Resolution 0.01 / 0.1 µS; 0.001 / 0.01 / 0.1mS Accuracy ±1% full scale Cal. Poin

49Dissolved Oxygen DO2700 Range 0 to 50.00 mg/L Resolution 0.01 mg/L Accuracy ±0.5% full scale Offset Adjustment ±10.0% Cal. Points (%) 2 points

5025. Replacements and Accessories Part number Ordering Code Item Description Eutech Instruments Oakton Instruments pH 2700 meter with pH electrode

51pH 6.86 buffer solution, 480 mL bottle ECBU686BT 00654-03 pH 7.00 buffer solution, 480 mL bottle ECBU7BT 00654-04 pH 9.18 buffer solution, 480 mL

5226. Warranty This meter is supplied with a warranty against significant deviations in material and workmanship for a period of THREE years from d

5327. Return of Items Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any r

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22. Getting Started Keypad and Display Auto Read is enabled. When flashing, the instrument has detected a ‘Stable’ reading and locked the value. P

For more information on our products, please contact our channel partner or visit our websites listed below: Oakton Instruments 625

3Navigation of Tabs

4Meter Connections pH 2700 ION 2700 PC 2700 CON 2700 DO 2700 DC Power supply RS-232 RS-232 output, 2.5 mm jack for RS-232 cable CON/TEMP 8-pin

53. System Setup & Configuration Use the System Setup to customize operation of your 2700 series meter. Press from the measurement screen and