HI 9026 pH/ORP Meter with Calibration Check™

•Backlit, dual-level LCD•Measures in °C or °F •7 memorized buffers for calibration •Custom calibration with two custom buffers•Display hold and memory storage•User-selectable calibration reminder This advanced pH/ORP meter has a large, backlit LCD for clear readings in dark environments.

SPECIFICATIONS HI 9026

Range pH: -2.00 to 16.00; mV: ±699.9 to ±1999; Temp.: -20.0 to 120.0°C/-4.0 to 2482.0°F Resolution pH: 0.01; mV: 0.1, 1; Temperature: 0.1°C/0.1°F Accuracy
(@20°C/68°F) pH: ±0.01; mV ±0.2, ±1; Temperature: ±0.4°C/±0.8°F Calibration Check™ Check of the electrode status during calibration pH Calibration Automatic, 1 or 2 point with 7 memorized buffer values (pH 1.68, 4.01, 6.86, 7.01,9.18, 10.01, 12.45); + 2 custom buffers Temp Comp Automatic or manual, -20 to 120°C (-4°F to 248°F) pHElectrode HI 1230B, double junction, PEI body, gel filled, BNC conn. and 1 m cable (included) Temperature probe HI 7669 with 1 m (3.3’) cable (included) Input Impedance 10
12 Ohm Battery Type/Life (4) 1.5V AA / approx. 500 hours of continuous use (without backlight);auto-off after 20 minutes of non-use (can be disabled) Environment 0 to 50°C (32 to 122°F); 100% RH Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4’’) Weight 500 g (1.1 lb.)

ORDERING INFORMATION

HI 9026 is supplied with HI 1230B ph electrode, HI 7662 temperature probe, pH 4 and pH 7 buffer sachets,100 mL plastic beaker, batteries, rugged carrying case and instructions.

ACCESSORIES

HI 3230B ORP electrode, gel filled, PEI body, BNCconnector, 1 m cable HI 7010L pH 10.01 buffer solution, 500 mL HI 70300L Electrode storage solution, 500 mL

Tank

Tip

HI 7007L pH 7.01 buffer solution, 500 mL HI 7061L Electrode cleaning solution, 500 mL

ORP is the best way to measurewater’s potential ability to oxi- dize organic contaminants. In other words, ORP can be used as an indicator of water quality. Many consider an ORP level of 250-400 mV to be reflective of good to optimal water quality; this level can be maintained by using aeration, ozone, or a UV sterilizer. ORP levels below 200 mV can indicate low dissolved oxygen, high nitrites, or high DOC (Dissolved Organic Carbon). DOC promotes the increase of harmful bacteria. However, ORP levels exceeding 550 mV are harmful to animals and plants. Levels this high should only be used as a steril- izing agent to treat water that contains no live stock.

HI9026Calibration Check™ System

Clean Electrode Expired Calibration

Each time pH calibration is performed, the meter inter- nally compares the new calibration with the one previously stored. When this comparison indicates a significant difference, the clean message blinks on the LCD to advise the user that the pH electrode may need to be cleaned and another calibration will need to be performed. The instrument is providedwith a real time clock (RTC) in order to monitor the time elapsed since the last pH calibration. The RTC is reset every time the meter detects a calibration time-out. The CAL tag will start blinking to warn the user that the meter should be calibrated.

Electrode Condition

The HI 9026 display features a bar graph which displays the status of the electrode after calibration. The bargraph remains active for 12 hours after calibration, then only the frame is shown on the display.

61 to 80% Life41 to 60% Life21 to 40% Life1 to 20% Life0% Life81 to 100% Life

(888) 815-6422 • aquaculture@hannainst.com

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