อุปกรณ์วัด ISE (Two Channel, pH/ORP/ISE, EC/TD/NaCl/Resistivity Benchtop Meter)

HI 3512

Two Channel, pH/ORP/ISE, EC/TD/NaCl/Resistivity Benchtop Meter

The HI 3512 is a 2 channel professional benchtop meter with a graphic LCD, designed to provide accurate laboratory results. Channel 1 features pH/ORP/ISE and temperature measurement capability while channel 2 measures EC/TDS/NaCl/Resistivity
and temperature.

The pH channel offers up to five point pH calibration with seven standard buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45) and up to two custom buffers.

HANNA’s exclusive Calibration Check™ diagnostics system ensures accurate pH?readings every time by alerting users of potential problems during the calibration process. The Calibration Check™ system eliminates erroneous readings due to dirty or faulty pH electrodes or contaminated pH buffer solutions. After the guided calibration process, a probe condition indicator is displayed on the LCD informing the user of the overall pH electrode status.

This instrument can measure using ORP electrodes (pH channel input), thanks to its capability to measure mV with a resolution up to 0.1 mV and ISE electrodes on ppm scale (pH channel input). The electrode type and unit selection capability and the ISE calibration in up to five calibration standard solutions make this instrument very useful for a large range of concentration solution measurements.

The EC channel offers up to two calibration points with 7 memorized standards (0.00 μS/cm, 84.0 μS/cm, 1.413 mS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm). The EC channel supports autoranging, manual ranging and lock of the user selected range, temperature compensation selection, temperature reference selection (15 °C, 20 °C or 25 °C) and temperature coefficient set.

pH and EC channels also provide user selectable “out of calibration range” warnings and a “calibration timeout” to remind the user when a new calibration is necessary.

Messages on the graphic LCD offer directions for easy and accurate calibration for both channels as well as diagnostics to alert the user when calibration or measurement issues are detected.

Other features of the HI 3512 include log-on-demand of up to 400 samples, automatic logging interval with log on stability feature of up to 600 records, auto HOLD that freezes the first stable reading on the LCD display, GLP to view the last calibration data for pH, rel mV, ISE, EC or NaCl and PC interface via USB.

Specifications

pH  Range  -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH
Resolution  0.1 pH; 0.01 pH; 0.001 pH
Accuracy  ±0.01 pH; ±0.002 pH
mV  Range  ±2000.0 mV
Resolution  0.1 mV
Accuracy  ±0.2 mV
ISE  Range  1.00 E-7 to 9.99 E10 conc.
Resolution  3 digits 0.01, 0.1, 1, 10 conc.
Accuracy  ±0.5% of reading (monovalent ions); ±1% of reading (divalent ions)
Temperature Channel 1  Range  –20.0 to 120.0 ºC (4.0 to 248.0 ºF)
Resolution  0.1 ºC (0.1 ºF)
Accuracy  ±0.2 ºC (±0.4 ºF) (excluding probe error)
Rel. mV Offset Range  ±2000 mV
pH Calibration  up to five point calibration, seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45), and two custom buffers
pH Calibration Check™  yes
Slope Calibration  from 80 to 110%
pH Temp. Compensation  manual or automatic from –20.0 to 120.0 ºC
(–4.0 to 248.0 ºF)
pH Electrode  HI 1131B glass body pH electrode with BNC connector and 1 m (3.3′) cable (included)
Temperature probe  HI 7662-T temperature probe with 1 m (3.3′) cable (included)
ISE Calibration  up to five-point calibration points 6 standard solutions available (0.1, 1, 10, 100, 1000, 10000 ppm)
EC  Range  0.000 to 400 mS/cm (shows values up to 1000 mS/cm) actual conductivity 1000 mS/cm; 0.001 to 9.999 µS/cm; 10.00 to 99.99 µS/cm; 100.0 to 999.9 µS/cm; 1.000 to 9.999 mS/cm; 10.00 to 99.99 mS/cm; 100.0 to 999.9 mS/cm; 1000 mS/cm (autoranging)
Resolution  0.001 µS/cm; 0.01 µS/cm; 0.1 µS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm
Accuracy  ±1% of reading (±0.01 µS/cm or 1 digit whichever is greater) excluding probe error
Resistivity  Range  01.0 to 199.9 ohms; 100 to 1.999 ohms; 1.00 to 19.99 Kohms; 10.0 to 199.9 Kohms; 100 to 1.999 Kohms; 1.00 to 19.99 Mohms; 10.0 to 100.0 Mohms (autoranging)
Resolution  0.1 ohm; 1 ohm; 0.01 Kohms; 0.1 Kohms; 1 Kohms; 0.01 Mohms; 0.1 Mohms
Accuracy  ±1% of reading (±10 ohms or 1 digit whichever greater) excluding probe error
TDS  Range  0.000 to 9.999 ppm; 10.00 to 99.99 ppm; 100.0 to 999.9 ppm; 1.000 to 9.999 g/L; 10.00 to 99.99 g/L; 100.0 to 400.0 g/L (autoranging)
Resolution  0.001 ppm; 0.01 ppm; 0.1 ppm; 0.001 g/L; 0.01 g/L; 0.1 g/L
Accuracy  ±1% of reading (±0.05 ppm or 1 digit whichever greater) excluding probe error
Factor  0.40 to 1.00
Salinity  Range  % NaCl: 0.0 to 400.0 %
Resolution  0.1 %
Accuracy  ±1% of reading excluding probe error
Temperature Channel 2
Range  -20.0 to 120°C
Resolution  0.1°C
Accuracy  ±0.2 °C (excluding probe error)
EC Calibration  automatic up to two points with seven memorized standards (0.00 µS/cm, 84.0 µS/cm, 1.413 mS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm)
Constant Cell Setup  0.010 to 10.000
NaCl Calibration  max. one point only (with HI 7037 standard)
EC Probe  HI 76310 platinum four ring conductivity/TDS probe with 1 m (3.3′) cable (included)
Temperature Source  automatic from sensor inside the probe; manual entry
EC Temp. Compensation  NoTC, MTC, ATC
Reference Temperature  15, 20, 25 °C
Temperature Coefficient  0.00 to 10.00 %/°C
Log On Demand  400 samples
Lot Logging  5, 10, 30 seconds; 1, 2, 5, 10, 15, 30, 60, 120, 180 minutes (max 600 samples)
PC interface  opto-isolated USB
Input Impedance  1012 Ohms
Power Supply  12 VDC adapter (included)
Environment / Dimensions / Weight  0 to 50 °C (32 – 122 °F) RH max 55% non-condensing / 235 x 207 x 110 mm (9.2 x 8.14 x 4.33”) / 1.8 Kg (4.1 lbs.)

Accessories

Solutions
HI 6016  Millesimal Buffer Solution, 7.413 pH, 500 mL bottle
HI 6004  Millesimal Buffer Solution, 4.010 pH, 500 mL bottle
HI 6007  Millesimal Buffer Solution, 7.010 pH, 500 mL bottle
HI 6010  Millesimal Buffer Solution, 10.010 pH, 500 mL bottle
HI 6124  Millesimal Buffer Solution, 12.450 pH, 500 mL bottle
HI 7030L  12880 µS/cm EC Solution, 500 mL Bottle
HI 7031L  1413 µS/cm EC Solution, 500 mL Bottle
HI 7033L  84 µS/cm EC Solution, 500 mL Bottle
HI 7034L  80000 µS/cm EC Solution, 500 mL Bottle
HI 7035L  111800 µS/cm EC Solution, 500 mL Bottle
HI 7039L  5000 µS/cm EC Solution, 500 mL Bottle
HI 7037L  Calibration Solution for % Readings (100% NaCl)
HI 7061L  General Purpose Cleaning Solution
1 x 500 mL bottle
HI 70300L  Electrode Storage Solution
1 x 500 mL bottle
Accessories
HI 76404N  Electrode Holder for HI 42xx Type Bench Meters
HI 92000  Windows® Compatible Software
HI 920013  USB Cable