تیتراتور اتوماتیک HI931

-2.000 to 20.000 pH; -2.00 to 20.00 pH; -2.0 to 20.0 pH

0.001 pH; 0.01 pH; 0.1 pH

±0.001 pH

up to five-point calibration, eight standard buffers and five custom buffers

automatic from -5.0 to 105.0°C; 23.0 to 221.0°F

-2000.0 to 2000.0 mV

0.1 mV

±0.1 mV

single point offset

1 x 10⁻⁶ to 9.99 x 10¹⁰ concentration

1; 0.1; 0.01 concentration

±0.5% (monovalent ions); ±1% (divalent ions)

automatic, up to five point calibration, seven fixed standard solutions available (0.01, 0.1, 1, 10, 100, 1000, 10000 choice of concentration) and five custom solutions

-5.0 to 105.0°C; 23.0 to 221.0°F; 268.2 to 378.2K

0.1°C; 0.1°F; 0.1K

±0.1°C; ±0.2°F; ±0.1K, excluding probe error

one analog board for pH/ORP/ISE; not upgradeable

acid/base (pH or mV-mode), redox, precipitation, complexometric, non-aqueous, ion-selective, argentometric

user-specified expression of concentration units to suit specific calculation requirements

up to 100 methods (standard and user-defined)

single equivalence point (1st or 2nd derivative) or fixed pH/mV value

one included can be upgraded for two

user-selectable from 0.1 mL/min to 2 x burette volume/min

overhead propeller type, 200 to 2500 rpm, resolution 100 rpm

one 25 mL burette included

5, 10, 25, and 50 mL (auto-detection)

1/40000

0.001 mL

±0.1% of full burette volume

not available

not available

mV-volume or pH-volume titration curve, 1st derivative curve or 2nd derivative curve; pH mode, mV mode or ISE mode: pH/mV/concentration versus time

instrumentation data storage and printing capabilities

not available

up to 100 titration and pH/mV/ISE reports

USB: flash drive compatibility for transfer of methods and reports
RS232 for analytical balance
Parallel printer port

5.7” (320 x 240 pixel) backlit color LCD

100-240 VAC; “-01” models, US plug (type A); “-02” models, European plug (type C)

Operating: 10 to 40°C (50 to 104°F), up to 95% RH
Storage: -20 to 70°C (-4 to 158°F), up to 95% RH

315 x 205 x 375 mm (12.4 x 8.1 x 14.8 “)

approx. 4.3 kg (9.5 lbs.) with 1 pump, stirrer and sensors

Each HI931 potentiometric titrator is supplied with titrator, pump assembly, burette assembly, electrodes holder and stirrer, burette blank support, pump and burette locking screws with plastic head, temperature probe, shorting cap, power adapter, USB cable, instruction manual, USB Memory Stick, HI900 PC application (installation kit on USB stick), and quality certificate.