Hanna-instruments HI 4521 Manual de usuario descargar pdf (Pagina 6)

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

HI 4521 and HI 4522 are professional bench meters with color graphic LCD for pH, ORP (Oxidation Reduction

Potential), ISE (HI 4522 only), conductivity, resistivity, TDS, salinity and temperature measurements.

The display can be configured as a single channel or dual channel display in various modes: Basic information

only, GLP information, Graph and Log History mode.

The main features of the instruments are:

• Two input channels;

• Eight measurement parameters: pH, mV, ISE (HI 4522 only), conductivity, resistivity, TDS, salinity and

temperature;

• Manual selection, automatic and semiautomatic pH calibration in up to five points, with standard (1.68,

3.00, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45) and custom buffers (up to 5 custom buffers);

• Manual Selection and Custom Standard ISE calibration in up to five points, with standard (up to five standard

solutions for each measurement unit) and custom solutions (up to 5 custom solutions), with or without

temperature compensation (HI 4522 only);

• Pure water checking using the USP <645> standard;

• Conductivity probe automatic recognition;

• Automatic or custom standard conductivity calibration in up to four points, probe offset calibration;

• One fixed point salinity calibration (Percent Scale only);

• AutoHold feature to freeze first stable reading on the LCD;

• Two selectable alarm limits (for pH, mV, ISE, conductivity, resistivity, TDS, salinity);

• Three selectable logging modes: Automatic, Manual, AutoHold logging;

• Up to 100 logging lots for automatic or manual modes and up to 200 USP reports, up to 100 ISE methods

reports;

• Selectable area and sampling period feature for automatic logging;

• GLP feature;

• Online and offline graph;

• User-friendly interface on large color graphic LCD (240 x 320 pixels);

• Opto-isolated PC interface via RS232, respectively USB.

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HI 1131B

Glass-body, single junction, refillable, combination pH electrode.

Use: general purpose.

HI 1330B

Glass-body, semimicro, single junction, refillable, combination pH electrode.

Use: laboratory, vials.

HI 1331B

Glass-body, semimicro, single junction, refillable, combination pH electrode.

Use: flasks.

HI 1230B

Plastic-body, double junction, gel-filled, combination pH electrode.

Use: general, field.

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Hanna-instruments HI 4521 Manual de usuario Pagina 6