Hanna Instruments HI 903 - Manual (Page 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 TM 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