Datasheet
• Pre-amplified pH electrodes
· The HI1297D pH/ORP electrode and
HI1296D pH electrode have an internal
temperature sensor and also contain
a pre-amplifier to render measurements
impervious to noise and electrical
interferences.
HI1297D
HI1296D
HI991001 • HI991002 • HI991003
pH/pH-mV/ORP and
Temperature Meters
• Sensor Check™
· (HI991003) Allows users to check the
pH electrode status at any time
• Automatic Temperature Compensation (ATC)
• Two-Point calibration
· Up to two points automatic calibration
• Battery Error Prevention System (BEPS)
· Alerts the user of low battery power
that could adversely affect readings
• Waterproof
· Compact, heavy-duty, and waterproof
protected casing
• Battery life indicator
· Battery percentage displayed
on startup
• HELP Feature
· Tutorial messages displayed on LCD
HI991001, HI991002 and HI991003
are ideal for plating baths, wastewater,
swimming pool and spa water quality and
environmental applications.
HI991003 is a portable pH/pH-mV/ORP
and temperature meter with our unique
Sensor Check™ feature that allows the
user to determine the electrode status
at any time. HI991002 measures pH/ORP
and temperature while the HI 991001
measures pH and temperature.
The HI1296D pH/temperature and HI1297D
pH/ORP/temperature probes feature an easy
to clean recessed tip that prevents solids in
solutions from collecting on the sensor. The
titanium body of these probes function as a
potential matching pin for increased stability
of readings and extended sensor life.
Specifications HI991001 HI991002 HI991003
pH*
Range -2.00 to 16.00 pH -2.00 to 16.00 pH -2.00 to 16.00 pH
Resolution 0.01 pH 0.01 pH 0.01 pH
Accuracy ±0.02 pH ±0.02 pH ±0.02 pH
Calibration
automatic one or two-point calibration with two sets of standard
buffers available (standard 4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18)
mV
Range — ±1999 mV ±1999 mV
Resolution — 1 mV 1 mV
Accuracy — ±2 mV ±2 mV
pH-mV
Range — — ±825 mV (pH-mV)
Resolution — — 1 mV
Accuracy — — ±1 mV
Temperature*
Range -5.0 to 105.0°C; 23.0 to 221.0°F
Resolution 0.1°C; 0.1°F
Accuracy
±0.5°C (up to 60°C), ±1.0°C (outside);
±1.0°F (up to 140°F), ±2.0°F (outside)
Additional
Specifications
pH Electrode
(HI991003 &
HI991002)
HI1297D pre-amplified pH/ORP probe with internal temperature
sensor, DIN connector and 1 m (3.3’) cable (included)
pH Electrode
(HI991001)
HI1296D pre-amplified pH probe with internal temperature sensor,
DIN connector and 1 m (3.3’) cable (included)
Temperature
Compensation
automatic, -5.0 to 105.0°C (23.0 to 221.0°F)
Battery Type / Life 1.5V (3) AAA / approximately 1200 hours of continuous use.
Auto-off auto-off after eight minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max. 100%
Dimensions / Weight 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”) / 205 g (7.2 oz.)
Ordering
Information
HI991001 is supplied with HI1296D pH/ORP probe with internal temperature sensor,
HI70004 pH 4.01 buffer sachet, HI70007 pH 7.01 buffer sachet, HI700601 electrode
cleaning solution sachet (2), batteries, instructions and rugged carrying case.
HI991002 and HI991003 are supplied with HI1297D pH/ORP probe with internal
temperature sensor, HI70004 pH 4.01 buffer sachet, HI70007 pH 7.01 buffer sachet,
HI700601 electrode cleaning solution sachet (2), batteries, instructions and rugged
carrying case.
pH and ORP solutions begin on page 3.100
* Limits will be reduced to actual sensor limits
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3
pH
portable
3.45