Benchtop microprocessor meter that reads pH, mV (ORP) and temperature, showing temperature together with pH or mV on a 16 × 2 backlit LCD. pH calibration is 2-point or 3-point: automatic with pH 4.00, 7.00 and 9.20 buffers, which the meter recognises on its own, or manual with any two buffers from 0 to 14 pH. Temperature compensation is automatic with the Pt-100 probe or set by keys. Stores 1000 readings with date and time and prints them, all at once or by date, to a printer or computer through RS-232 or a parallel port. Supplied with a combination pH electrode, Pt-100 probe, pH 4.00, 7.00 and 9.20 buffer tablets, electrode holder and RS-232 cable. 230 V AC.
Non-returnable
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Application Industry
PharmaceuticalFood, dairy and beveragesWater and environmentEducation and researchAgriculture and soil Parameters Measured
pHTemperaturemVORP Product Details
Specifications
Product Details
Product Details
The Hintron microprocessor pH, mV and temperature meter is a benchtop instrument for laboratories that need pH and ORP readings with a record of when each one was taken. The 16 × 2 backlit display shows temperature alongside pH or mV, and 1000 readings can be stored with date and time and printed or sent to a computer.
Measurement
- pH: 0 to 14.00 pH, resolution 0.01 pH, accuracy ±0.01 pH (relative)
- mV (ORP): 0 to +1999 mV, resolution 1 mV, accuracy ±1 mV
- Temperature: −20.0 to +200.0 °C with the Pt-100 probe, resolution 0.1 °C, accuracy ±0.2 %
- Temperature compensation of pH: automatic with the probe, or set by keys, 0 to 100 °C
- Slope correction: 80 % to 120 % (100 % by default)
pH calibration
- 2-point or 3-point
- Automatic: the meter recognises the standard buffers pH 4.00, 7.00 and 9.20 and shows the buffer it has detected; the 3-point calibration uses all three
- Manual (2-point): any two buffers from 0 to 14 pH, by adjusting the displayed value
- A calibration can be cleared and repeated at any time; the meter shows CAL ERROR if the same buffer is used twice
mV (ORP) calibration
- Manual, at two points
- Zero: 0 mV with the ORP input terminals connected together
- Span: quinhydrone in fresh pH 4.00 buffer, 268 mV at 20 °C, 263 mV at 25 °C, 258 mV at 30 °C
- The ORP electrode is not supplied
Temperature calibration
- Calibrated before dispatch; normally no temperature calibration is needed
- If required: 2-point (low and high) against a temperature calibrator, the two points more than 20 °C apart
- When the probe is not connected, a manual temperature can be set by keys
Memory and printing
- Up to 1000 readings stored with date and time from the real-time clock (24-hour, with date)
- Readings recalled on the display one by one, or cleared from the menu
- Prints all stored readings, or the readings of a chosen date
- Serial printer or computer through RS-232: 1200 to 9600 baud, 8 data bits, no parity, 1 stop bit
- Parallel printer through the 25-pin Centronics port
General
- Display: 16 × 2 alphanumeric backlit LCD
- Keypad: 6 soft-touch membrane keys
- Error indication: pH, buffer and ORP errors
- Power: 230 V ±10 % AC, 50 Hz
Supplied with
- pH, mV and temperature meter
- Combination pH electrode
- Pt-100 temperature probe
- pH buffer tablets, pH 4.00, 7.00 and 9.20
- Electrode holder
- RS-232 cable
- Operation manual
Intended for industrial and laboratory use only, not for clinical use.
Specifications
Specifications
Measurement
- CalibrationpH 2-point (automatic or manual) or 3-point (automatic) · mV 2-point manual (zero and span) · Temperature 2-point against a temperature calibrator (set at the factory)
- Calibration standardsAutomatic: pH 4.00, 7.00, 9.20 buffers. Manual: any two buffers, 0 to 14 pH · Zero: input terminals connected together. Span: quinhydrone in pH 4.00 buffer · Low and high points over 20 °C apart
- Range0 to 14.00 pH · 0 to +1999 mV · −20.0 to +200.0 °C
- Resolution0.01 pH · 1 mV · 0.1 °C
- Accuracy±0.01 pH (relative) · ±1 mV · ±0.2 %
- Temperature compensationAutomatic with the Pt-100 probe, or a manual value set by keys, 0 to 100 °C · — · —
- Buffer recognitionAutomatic for pH 4.00, 7.00 and 9.20; the buffer recognised is shown on the display · — · —
- Slope correction80 % to 120 % (100 % by default) · — · —
- InputCombination pH electrode (supplied) · ORP electrode (not supplied) · Pt-100 probe on a 3-pin socket (supplied)
General
- Form factorBenchtop
- Display16 × 2 alphanumeric backlit LCD
- Power230 V ±10 % AC, 50 Hz
Data and connectivity
- Display formatTemperature with pH, or temperature with mV (ORP), together on the two lines
- Keypad6 soft-touch membrane keys (STORE, PRG, INC, DEC, ENT, ESC) plus ON/OFF
- Memory1000 readings, each with date and time; recall on the display or clear from the menu
- ClockReal-time clock, 24-hour, with date
- InterfaceRS-232 serial (9-pin) and Centronics parallel (25-pin), for a printer or a computer
- Serial settings1200, 2400, 4800 or 9600 baud; 8 data bits, no parity, 1 stop bit
- PrintingAll stored readings, or the readings of a chosen date
- Error indicationpH error, buffer error, ORP error; CAL ERROR and TEMP ERROR prompts if a calibration is not valid