HI98185 is a waterproof, portable meter designed for demanding applications. This meter measures pH/ORP/ISE and temperature HI98185 pH/ORP/ISE Waterproof Portable Meter pH Calibration Check™ Electrode condition on display Five point pH calibration with seven standard buffers and five custom buffers Automatic logging and log on demand Menu driven for ease of use Soft-key extended functionality Multiple language selection Contextual help at the touch of a button GLP features USB Backlit, graphic LCD and battery life on display Waterproof and rugged casing HI 98185 is a waterproof, portable meter designed for demanding applications. This meter measures pH/ORP/ISE and temperature. Choose from 7 standard pH buffers and 5 custom pH buffers to obtain up to five point calibration and achieve high precision readings with a pH accuracy of ±0.002 and up to ±0.001 pH resolution. HANNA's Calibration Check™ maintains a history of past calibrations and monitors the pH electrode and buffers during subsequent calibrations for any signs of wide calibration variances due to a dirty or broken electrode or contaminated pH buffers. In measurement mode, the electrode's percent condition is continuously displayed. Exchange the pH probe for an ORP probe to obtain mV readings in the ±2000 mV range. HI 98185 adds direct ion concentration readings for ISE's and the results are displayed in ppm. The ion charge or nominal slope can be entered manually. HI 98185 supports 15 different ISE sensors by default and can be calibrated with up to five points and 6 standard buffers (choice of units). This unit allows an extensive choice of measurement units (ppm, ppt, g/L, ppb, ug/L, mg/mL, M, mol/L, mmol/L, % w/v, user) and has an expanded measuring range of 1.00 x 10-7 to 9.99 x 10-10. Press Auto-Hold while measuring and once stabilized, the current reading will remain displayed for your convenience in documenting. Switching to log-on-demand mode allows users to record and save up to 300 samples. This data can later be transferred to a PC with the USB connection and HANNA's HI 92000 software. “Out Of Calibration Range Warning” can be engaged to keep the user informed of the current calibration and helps to avoid taking measurements that are out of range. A backlit, graphic LCD provides easy to read resolution even in low-lit conditions. A combination of dedicated and soft keys allows easy, intuitive operation in a choice of languages. Comprehensive GLP data are directly accessible by pressing the GLP key. Access the contextual Help Menu to obtain on-screen information and assistance about each feature at the touch of a button. Designed for field use, these instruments can be operated with one hand and are supplied in a rugged carrying case. With an extended battery life of up to 200 hours users are assured long operation. The inductive charger can either be plugged into a standard 115V socket with the included adapter or a 12 VDC source, such as a car's 12 V accessory outlet. This meter come equipped with the HI 72911B pH/ temperature electrode with rugged, titanium casing. Order Information: HI 98185-01 (115V), HI 98185-02 (230V) and HI 98185-01 (115V) and HI 98185-02 (230V) are supplied with HI 72911B pH electrode, HI 70004 pH 4.01 buffer solution sachet, HI 70007 pH 7.01 buffer solution sachet, rechargeable batteries, HI 710042 inductive battery charger with power adapter, instructions and hard carrying case. Range pH -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH mV ±2000 mV ISE from 1.00 E-7 to 9.99 E10 concentration Temperature -20.0 to 120.0 °C (-4.0 to 248.0°F) Resolution pH 0.1; 0.01; 0.001 pH mV 0.1 mV ISE 3 digits 0.01; 0.1; 1; 10 concentration Accuracy (@20°C/68ºF) pH ±0.01; ±0.002 pH mV ±0.2 mV ISE ±0.5% of reading (monovalent ions), ±1% of reading (divalent ions) Temperature ±0.4°C (±0.8°F) (excluding probe error) Calibration pH up to five point calibration, seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) + five custom buffers ISE up to five point calibration, six standard solutions (0.1, 1, 10, 100, 1000, 10000 ppm) Slope From 80 to 110% pH Temp. Compensation manual or automatic from -20.0 to 120.0°C (-4.0 to 248.0°F) Probe HI 72911B Titanium body, pre-amplified pH electrode with internal temperature sensor, BNC connector and 1 m (3.3’ cable) Logging log on demand 300 samples (100 each range) PC Connectivity opto-isolated USB with optional HI 92000 software Input Impedance 1012 Ohms Battery Type / Life 1.2V AA rechargeable batteries (4) / approximately 200 hours of continuous use with backlight (50 hours with backlight) Auto-off user selectable: 5, 10, 30, 60 min or can be disabled Environment 0 to 50°C (32 to 122°F); RH 100% Dimensions 226.5 x 95 x 52 mm (8.9 x 3.75 x 2”) Weight 525 g (18.5 oz.) Hanna HI98185 Nitrate Meter pH Meter à¤Ã×èͧÇÑ´ ORP à¤Ã×èͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´ä¹àµÃ·