Hanna-instruments HI 903 Bedienungsanleitung PDF herunterladen (Seite 149)

A1-3

APPENDIX 1

A1 TECHNICAL SPECIFICATIONS

Range 100 ppm to 100%

Resolution 1 ppm to (0.0001%)

Result Units %, ppm, mg/g, µg/g, mg, µg, mg/mL, µg/mL,

mg/pc, µg/pc

Sample Type Liquid or Solid

Determination

Pre-Titration Conditioning Automatic

Background Drift Correction Automatic or User Selectable Value

Endpoint Criteria Fixed mV persistence, Relative drift stop or Absolute drift

stop

Dosing Dynamic with optional pre-dispensing

Result Statistics Mean, Standard Deviation

Clip-Lock

Exchangeable Burette System

Dosing Pump

Resolution 1/40000 of the burette volume (0.125 µL per dose)

Accuracy ± 0.1% of full burette volume

Syringe 5-mL precision ground with PTFE plunger

Valve Motor-driven 3-way, PTFE liquid contact material

Tubing PTFE with light block and thermal jacketing

Dispensing Tip Glass, fixed position anti-diffusion

Titration Vessel Conical with operating volume between 50-150 mL

Solvent Handing System Sealed system, integrated diaphragm air pump.

Electrode

Type Dual platinum pin, polarization electrode

Connection BNC

Polarization Current 1, 2, 5, 10, 15, 20, 30 or 40 µA

Voltage Range 2 mV to 1000 mV

Voltage Resolution 0.1 mV

Accuracy ± 0.1%

Stirrer

Type Magnetic, Optically regulated, digital stirrer

Speed 200- 2000 RPM

Resolution 100 RPM

External Stirrer 4-pin mini DIN Connection allows for the control of an

external stirring apparatus

Peripheral Devices

PC Transfer methods and reports via USB connection to

a PC using the HI 900 PC Software

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Hanna-instruments HI 903 Bedienungsanleitung Seite 149