PH-221 Portable pH mV Temp Meter

PH-221 Portable pH mV Temp Meter

PH-221 is a professional portable pH meter with relative mV measurement mode, 1 to 5 points calibration, setup menu contains 9 options, accuracy: 0.002pH.

pH Mode:

• Professional portable pH meter is equipped with a backlit LCD display.

• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.

• Automatic electrode diagnosis shows the pH slope and offset.

• Automatic temperature compensation ensures accurate readings over the entire range.

• Calibration due alarm prompts user to calibrate the meter regularly.

ORP Mode (Sensor is optional):

• 1 point offset calibration allows adjusting the displayed value to a known standard.

• Relative and absolute millivolt modes provide reliable ORP measurements.

General Features:

• Auto-Read function senses and locks the measurement endpoint.

• Auto-Power Off effectively conserves battery life.

• Setup menu allows setting the pH buffer group, number of calibration points, resolution, stability criteria, date and time, etc.

• Reset function automatically resumes all settings back to the factory defaults.

• Expanded memory stores or recalls up to 500 data sets.

• USB communication interface is easy to transfer data to PC.

• Multi-mode power scheme (batteries, power adapter and USB port) ensures that using the meter smoothly.

Specifications:

1. pH:

1) Range: -2.000~20.000pH

2) Accuracy: ±0.002pH

3) Resolution: 0.001, 0.01, 0.1pH, selectable

4) Calibration Points: 1 to 5 points

5) pH Buffer Options: USA, NIST, DIN or custom

2. mV (Sensor is optional):

1) Range: ±1999.9mV

2) Accuracy: ±0.2mV

3) Resolution: 0.1, 1mV, selectable

4) Calibration Points: 1 point

5) Measurement Modes: Relative or absolute mV

3. Temperature:

1) Range: 0~105°C, 32~221°F

2) Accuracy: ±0.5°C, ±0.9°F

3) Resolution: 0.1°C, 0.1°F

4) Offset Calibration: 1 point

5) Calibration Range: Measured value ±10°C

4. General:

1) Temperature Compensation: 0~100°C, 32~212°F, manual or automatic

2) Stability Criteria: Low or high

3) Calibration Due Alarm: 1 to 31 days or off

4) Memory: Stores up to 500 data sets

5) Output: USB communication interface

6) Connector: BNC

7) Display: 3.5" custom LCD

8) Power: 3×1.5V AA batteries or DC5V power adapter

9) Battery Life: Approximately 150 hours (Turn off the backlit)

10) Auto-Power Off: 10, 20 or 30 minutes after last key pressed

11) Dimensions: 170(L)×85(W)×30(H)mm

12) Weight: 300g