Conductivity Module HI6000-3

EC USP Mode

The HI6000 Multiparameter Modular Sytem used in conjunction with HI6000-3 EC module and EC probes can be used for conductivity measurements required to prepare water for injection (WFI) according to USP <645>. The HI6000 gives clear instructions on how to perform each stage and automatically check that the temperature, conductivity and stability are within USP limits.

Recommended Probe
Hanna recommends the HI7631233 four-ring conductivity/resistivity/
TDS/salinity probe for use with this module. Recommended for a wide range of industrial process water applications, HI7631233 provides stable measurements over a wide measurement range and does not require frequent calibrations. An integral temperature sensor measures the process temperature and adjusts the measured conductivity to a reference temperature by applying specialized compensation algorithms:

· Linear: appropriate when it is assumed that the្temperature coefficient of variation has the same value for all measurement temperatures.
· Standard: appropriate for high-purity water measurements and documented in ASTM Standard D5391-14. This setting should be used for >1Mohm.cm resistivity measurements.
· Natural: appropriate for natural ground, well, or surface water (or water with similar composition) in accordance with ISO7888 standard.

The result is reliable electrolytic conductivity (EC), TDS (Total Dissolved Solids), resistivity, or Seawater Salinity in percent, PSU, or ppt units.

TDS is a calculated value based on the conductivity of the solution (TDS = factor x EC25). A TDS factor is a conversion factor used to change an EC measurement to a ppm measurement.

Salinity PSU: The practical salinity of seawater relates the ratio of្electrical conductivity of a normal seawater sample at 15 °C and 1 atmosphere to a potassium chloride solution (KCl) with a mass of 32.4356 g/Kg water at the same temperature and pressure. Under these conditions the ratio is equal to 1 and S=35. The practical salinity scale may be applied to values 0 through 42.00 psu at temperatures between 0 to 35 °C.

Sal ppt: measurements expressed in ppt are based on the Natural Seawater Scale that extends from 0.00 to 80.00 g/L and covers 10 to 31 °C temperature range. It determines the salinity based upon a conductivity ratio of sample to standard seawater at 15 °C and an approximate salinity value of 35 in seawater.

Sal %: in this scale 100% salinity is equivalent to roughly 10% solids.

Measurement
• Measure μS/cm, mS/cm (Conductivity); Ω·cm, kΩ·cm, MΩ·cm (Resistivity); ppm, ppt (TDS); ppt, PSU, % (Salinity) with temperature
• Application-specific profiles allow quick and direct measurement without the need to update the sensor and system settings
• Active log during measurement
• Measurement stability indicator (using the Stability Criteria setting)
• Reading modes: direct and direct/autohold
• Temperature compensation can be Automatic or set manually
• Audible and/or alarm messages for measurements outside of predefined limits
• Galvanic isolation for conductivity measurement
Calibration
• Standard single point salinity calibration in 100% salinity standard, with the reading salinity scale set to %
• Standard single or multiple conductivity calibration with standards
• Non-volatile memory saves data and settings

លក្ខណៈបច្ចេកទេស
pH Range	2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH Resolution	0.1 pH; 0.01 pH; 0.001 pH
pH Accuracy	±0.1 pH; ±0.01 pH; ±0.002 pH (±1 last significant digit)
pH Temperature Compensation	ដោយស្វ័យប្រវត្តិ ឬដោយដៃ
mV Range	−2000.0 mV ទៅ 2000.0 mV
mV Resolution	1 mV; 0.1 mV
mV Accuracy	ខ្ទង់សំខាន់ចុងក្រោយ ±0.2 mV ±1
ISE Range	កំហាប់ 1 x 10-6 ទៅ 9.99 x 1010
ISE Resolution	កំហាប់ 1; 0.1; 0.01; 0.001
ISE Accuracy	±0.5% (monovalent ions); ±1% (divalent ions)
ISE Calibration	ស្វ័យប្រវត្តិ ការក្រិត រហូតដល់ប្រាំចំណុច សូលុយស្យុងស្តង់ដារថេរចំនួនប្រាំពីរដែលមានសម្រាប់ឯកតាវាស់នីមួយៗ និងស្តង់ដារកំណត់ដោយអ្នកប្រើប្រាស់ចំនួនប្រាំ
Range សីតុណ្ហភាព	-20.0 to 120.0 °C; -4.0 to 248.0 °F; 253.2 to 393.2 K
Resolution សីតុណ្ហភាព	0.1 °C / 0.1 °F / 0.1 K
ភាពត្រឹមត្រូសីតុណ្ហភាព	±0.2 °C / ±0.4 °F / ±0.2 K
Relative mV offset range	±2000.0 mV
ចំណុចក្រិត pH	រហូតដល់ 5
ប្រភេទ	ស្វ័យប្រវត្តិ; ពាក់កណ្តាលស្វ័យប្រវត្តិ; សៀវភៅណែនាំ
Buffers ស្តង់ដារ	Hanna and NIST pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45
Buffers ផ្ទាល់ខ្លួន	រហូតដល់ 5
ក្រុមផ្ទាល់ខ្លួន	រហូតដល់ 5
ចំណុចក្រិតទី 1	offset ឬ ពិន្ទុ (ការកំណត់អ្នកប្រើប្រាស់)
ការក្រិតតាមខ្នាតសីតុណ្ហភាពរបស់អ្នកប្រើប្រាស់	ចំណុចតែមួយ អាចលៃតម្រូវបាន; ចំណុច Isopotential : -2.000 ទៅ 20.000 pH

Specifications
pH Range	2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
pH Resolution	0.1 pH; 0.01 pH; 0.001 pH
pH Accuracy	±0.1 pH; ±0.01 pH; ±0.002 pH (±1 last significant digit)
pH Temperature Compensation	automatic or manual
mV Range	−2000.0 mV to 2000.0 mV
mV Resolution	1 mV; 0.1 mV
mV Accuracy	±0.2 mV ±1 last significant digit
ISE Range	1 x 10-6 to 9.99 x 1010 concentration
ISE Resolution	1; 0.1; 0.01; 0.001 concentration
ISE Accuracy	±0.5% (monovalent ions); ±1% (divalent ions)
ISE Calibration	automatic, up to five-point calibration, seven fixed standard solutions available for each measurement unit, and five user defined standards
Temperature Range	-20.0 to 120.0 °C; -4.0 to 248.0 °F; 253.2 to 393.2 K
Temperature Resolution	0.1 °C / 0.1 °F / 0.1 K
Temperature Accuracy	±0.2 °C / ±0.4 °F / ±0.2 K
Relative mV offset range	±2000.0 mV
pH Calibration points	up to 5
Type	automatic; Semiautomatic; Manual
Standard buffers	Hanna and NIST pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45
Custom buffers	up to 5
Custom group	up to 5
1st calibration point	offset or Points (user setting)
Temperature User Calibration	Single point, adjustable; Iso potential point: -2.000 to 20.000 pH