HI 98140 • HI 98150 Waterproof pH/ORP/°C Meters with “Intelligent” Electrode and Log-on-demand

Rugged, Waterproof Construction. - The ABS housing provides the instrument with ultimate protection from harmful environments.
"Intelligent" Electrode Technology. - Allows the electrode to memorize the calibration date and data performed with a specific instrument.
Extended pH Range. - From -4 to 19.99 pH
Dual Level Backlit LCD - Unsurpassed visibility of measurements.

HI 98140 and HI 98150 are some of the most innovative portable pH meters ever offered. These instruments feature IP 67 waterproof protection, GLP (Good Laboratory Practice) capabilities and use the latest in electrode technology - Hanna’s new “intelligent” electrodes. These pH electrodes incorporate a chip which memorizes the calibration date and data performed with a specific instrument. When the “intelligent” electrode is attached to the meter again, it is automatically recognized. This new technology allows the operator to optimize time and efficiency with unsurpassed safety. It avoids erroneous measurements taken in the event the pH electrode is substituted after calibration. This series of electrodes also incorporates a temperature sensor, eliminating the need for an additional temperature probe. In addition, HI 98140 and HI 98150 feature a dual level backlit LCD which facilitates operation in dimly-lit locations. Graphic symbols and messages on the LCD guide the user through measurement procedures as well as the calibration. The pH range of the HI 98140 and HI 98150 has been extended from -4 to 19.99 pH and pH calibration is automatic at one or two points with five memorized buffers (pH 4.01, 6.86, 7.01, 9.18 and 10.01). These advanced meters also allow the operator to set a calibration maximum validity time and will automatically alert the user when recalibration is necessary. Access to the GLP data is password protected for added safety. All pH measurements are automatically compensated for the effects of temperature variations, and a stability indicator on the display shows the operator when the pH reading is stable. At the touch of a button, HI 98140 and HI 98150 can store up to 500 measurements, complete with date and time. The log-on demand data can be immediately displayed on the LCD or downloaded at a later date to a PC for graph analysis, troubleshooting and compliance record keeping. HI 98140 and HI 98150 are each supplied with HI 1618D intelligent electrode with built-in temp. sensor, DIN, 1 m (3.3’) cable, 12VDC adapter, pH 4.01/7.01 buffer solutions, cleaning sol., batteries, hard carrying case.

Specifications:		HI 98140	HI 98150
Range:	pH	-4.00 to 19.99	-4.00 to 19.99
	mV(ISE)	—	±400.0
	mV(ORP)	—	±2000
	°C	-20.0 to 120.0	-20.0 to 120.0
Resolution:	pH	0.01	0.01
	mV(ISE)	—	0.1 (-400 to +400); 1 (outside)
	mV(ORP)	—	0.1 (-400 to +400); 1 (outside)
	°C	0.1 (-10 to 120)	0.1 (-10 to 120)
Accuracy:	pH	±0.01	±0.01
(@20°C/68°F)	mV(ISE)	—	±0.5 (-400 to +400); ±2 (outside)
	mV(ORP)	—	±0.5 (-400 to +400); ±2 (outside)
	°C	±0.4 (0 to 70); 1 (outside)	±0.4 (0 to 70); 1 (outside)
Typical	pH	±0.03	±0.03
EMC Deviation:	mV(ISE)	—	±1 (above ±400); ±2 (outside)
	mV(ORP)	—	±1 (above ±400); ±2 (outside)
	°C	±0.8	±0.8
pH Calibration:		Automatic 1 or 2 points with 5 memorized buffers (pH 4.01, 6.86, 7.01, 9.18 or 10.01)
mV Calibration:		—	Automatic 2 points at 0, 350 mV or 3 points at 0, 350, 1900 mV
Temp.Compensation:		Automatic from -10 to 120°C (14 to 248°F)
Electrode:		HI 1618D intelligent electrode with temp sensor, DIN, 1 m (3.3’) cable (included)
Computer Interface:		RS232
Logging Function		Up to 500 measurements with log-on-demand
Input Impedance:		10¹²ohm
Power Supply:		4 batteries 1.5V AA/300 hours approx. continuous use (without backlight) or 12VDC adapter (incl.)
Environment:		32 to 122°F (0 to 50°C); RH 100%
Dimensions:		196x80x60 mm (7.7x3.1x2.4”)
Weight:		500 g (17.6 oz.)