PH-220 Features:
* 1 to 3 points calibration with automatic recognition for USA and NIST buffers.
* Automatic electrode diagnosis helps user decide whether to replace the pH electrode.
* Automatic temperature compensation ensures accurate readings over the entire range.
* Auto-Read function senses and locks the measurement endpoint.
* Setup menu allows setting the pH buffer set, number of calibration points, temperatureunit, auto-power off, etc.
* Reset function automatically resumes all settings back to the factory defaults.
* Expanded memory stores or recalls up to 100 data sets.
* USB communication interface for data transfer or connecting a power adapter to meter.
PH-221 Features:
PH
* 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
* 1 point offset calibration allows adjusting the displayed value to a known standard
* Relative and absolute millivolt modes ensure the 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 set, number of calibration points, resolution, stability criteria, temperature unit, 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
Accessories:
PH electrode * Temperature probe * PH buffer solutions (pH4.01/7.00/10.01) * Carrying case
Technical Parameters:
|
Model |
PH-220 |
PH-221 |
|
|
pH |
pH Range |
-2.00-20.00pH |
-2.000~20.000pH |
|
pH Accuracy |
±0.01 pH |
±0.002pH |
|
|
Resolution |
0.01 pH |
0.1, 0.01, 0.001 pH, Selectable |
|
|
Calibration Points |
1 to 3 points |
1 to 5 points |
|
|
pH Buffer Options |
USA (4.01/7.00/10.01), NIST (4.01/6.86/9.18) |
USA (pH1.68/4.01/7.00/10.01/12.45), NIST (pH1.68/4.01/6.86/9.18/12.45), DIN (pH1.09/4.65/6.79/9.23/12.75) or 2 custom buffers |
|
|
ORP |
mV Range |
-1999-1999mV |
-1999.9-1999.9mV |
|
mV Accuracy |
±1mV |
±0.2mV |
|
|
Resolution |
1mV |
0.1,1mV, Selectable |
|
|
Calibration Points |
/ |
1 point |
|
|
Temperature |
Temperature Range |
0~105°C/320 221°F |
|
|
Temperature Accuracy |
±0.5°C/±0.9°F |
||
|
Resolution |
0.1°C/0.1°F |
||
|
Offset Calibration |
1 point, reading ±10°C |
||
|
Other Specifications |
Temperature Compensation |
。0 100°C, manual or automatic |
|
|
Stability Criteria |
/ |
Low or high |
|
|
Calibration Due Alarm |
/ |
1 to 31 days or off |
|
|
Slope/Offset Display |
Yes |
||
|
Hold Function |
Manual or auto-endpoint |
||
|
Auto-Off |
30 minutes after last key pressed |
10, 20 or 30 minutes after last key pressed |
|
|
Memory |
100 data sets |
500 data sets |
|
|
Communication Interface |
USB |
||
|
Connector |
BNC, 3.5 mm jack socket |
||
|
Display |
Custom LCD (80 x 60 mm) |
||
|
Power Requirements |
3*1.5V AA batteries or DC5V power adapter |
||
|
Battery Life |
Approximately 150 hours (Turn off the backlight) |
||
|
Dimensions(W*D*H) |
170*85*30mm |
||
|
Package Size(W*D*H) |
475*155*350mm |
||
|
Net Weight |
300g |
||
|
Gross weight |
2kg |
||
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