AMT611 Lab Benchtop pH Meter | NIST Auto-Calibration

AMTAST Lab pH Meter

AMT611 Lab Benchtop pH Meter

Keywords: AMT611, lab pH meter, benchtop pH tester, NIST pH calibration, pH/mV meter

Compact 6.0-inch LCD benchtop pH/mV meter with 1–2 point calibration and automatic NIST buffer recognition for routine laboratory testing.

The AMT611 is a dependable benchtop pH meter built for everyday laboratory use. It delivers accurate pH and mV readings with continuous-read stability, ±0.05 pH accuracy, and 0.01 pH resolution across a 0.00–14.00 pH range. Manual temperature compensation (MTC) supports accurate readings from 0.0 to 60.0 °C, and the meter automatically recognises NIST pH buffers (4.01, 7.00, 10.01) to streamline calibration.

The 6.0-inch segment LCD shows pH, mV, and temperature values at a glance, with an adjustable backlight for clear viewing in any lab environment. A BNC (Q9) connector accepts standard pH combination electrodes, and the included short-circuit plug protects the high-impedance input when no electrode is connected. With IP54 protection, power-failure memory, and a configurable EU/UK/US AC-to-DC adapter, the AMT611 is ready for daily work in academic, environmental, and industrial labs.

Key Features

1.  6.0-Inch Segment LCD — Large display shows pH, mV and temperature with adjustable backlight for easy reading.

2.  1–2 Point Auto/Manual Calibration — Calibrate with NIST pH 4.01, 7.00 and 10.01 buffers, or define your own custom standard.

3.  Automatic Buffer Recognition — Auto-identifies pH 4.01, 7.00 and 10.01 standard solutions to streamline routine calibration.

4.  Manual Temperature Compensation (MTC) — Adjusts the pH reading for sample temperatures between 0.0 and 60.0 °C.

5.  Continuous-Read pH and mV — Stable live readings in pH (0.00–14.00) and mV (-1400 to +1400) modes.

6.  Electrode Slope Display — On-screen diagnostics show electrode slope and performance for quick reliability checks.

7.  Configurable Auto Shutdown — Programmable from off to 3600 seconds to extend component life.

8.  Reset to Factory Defaults — One-touch restore clears user settings and returns the meter to its shipping configuration.

How to Use

1.  Connect the Electrode — Attach the pH combination electrode to the BNC (Q9) socket on the back panel, or fit the short-circuit plug if no electrode is in use.

2.  Rinse and Power On — Rinse the electrode with distilled water and blot gently, then switch on the meter using the Power key.

3.  Set Temperature (MTC) — Press the Setting/▼ key to enter temperature setting, then adjust to match the temperature of your buffer or sample.

4.  Calibrate — Immerse the electrode in pH 7.00 buffer (then pH 4.01 or 10.01 for 2-point calibration), wait for a stable reading, and press Cal → Enter.

5.  Measure — Rinse the electrode, immerse it in the sample, set the sample temperature, and record the reading once it stabilises.

6.  Switch Units — Use the mV/pH key to toggle between pH and mV display modes during the same session.

Technical Specifications

Model	AMT611
pH Range	0.00 – 14.00 pH
pH Resolution	0.01 pH
pH Accuracy	±0.05 pH
mV Range (sensor optional)	-1400 – 1400 mV
mV Resolution	1 mV
mV Accuracy	±0.1 % FS
Calibration Points	1 – 2 points, auto or manual
Standard Recognition	NIST pH 4.01, 7.00, 10.01
Reading Mode	Continuous
Temperature Compensation	Manual (MTC), 0.0 – 60.0 °C
pH Electrode Input	BNC (Q9)
Display	6.0-inch segment LCD with backlight
Auto Shutdown	Off, 300, 600, 900, 1200, 1500, 1800, 2100, 2400, 2700, 3600 s
IP Rating	IP54
Power Supply	AC 110 V/60 Hz or AC 230 V/50 Hz → DC 12 V / 1000 mA
Dimensions	200 × 160 × 63 mm
Weight	600 g (1.32 lb)

Applications

1.  Academic and university laboratories — chemistry, biology and life-science course labs

2.  Environmental monitoring — acid rain, surface water, industrial wastewater and drinking water analysis

3.  Food and beverage testing — finished products, ingredients and beverages

4.  Pharmaceutical and medical laboratories — formulation, QC and biological sample prep

5.  Geological prospecting and metallurgy — ore, soil and process-solution testing

6.  Marine exploration — seawater and aquaculture sample pH measurement

7.  Daily chemical and textile QC — cosmetics, detergents, dyes and process water

Spare Parts

Optional accessories available for separate purchase — select any combination based on your testing needs:

1.  E520BNC pH composite electrode (replacement / spare)

2.  mV / ORP sensor (add-on for redox potential measurement, sold separately)

3.  NIST pH standard solution sachets — pH 4.01 / 7.00 / 10.01 (3 × 5 sachets per pack)

4.  Electrode clip assembly and electrode stem (replacement parts)

5.  Configurable AC power adapter — EU / UK / US plug variants