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KD221 is a high performance portable pH/ORP meter designed for outdoor applications. The meter contains a built-in setup menu that provides many advanced and useful options to improves accuracy of measurements and simplify operations
Features:
During the pH mode, Up to 5 points push-button calibration with auto-buffer recognition.Selectable pH buffer standards and temperature units.
Automatically calculates and displays electrode slope after calibration.
Automatic Temperature Compensation (ATC) ensures highly accuratemeasurements over the entire range.
Calibration due reminder prompts you to calibrate the meter regularly.
During ORP mode, Single point offset calibration allows user adjustsdisplayed value to a known standard.
Absolute or Relative millivolt (R.mV) measurement provides accurate ORP readings.
Automatic endpoint function freezes the stable measured values foreasy reading and recording data.
Manual temperature calibration provides accurate temperature value.
Help message as a operational guide to helps you understand howto use meter.
Setup menu lets user customizes buffer standards, calibration points,stability conditions, resolution, temperature units, date and time to meet measurement requirements.
Reset function can resumes all settings to factory default values.
Expanded memory stores and recalls up to 500 readings.
Built-in real-time clock stamps stored data to meets GLP standards.
Stored data can be transferred into computer via USB communication interface.
Specifications:
Model | KD221 | ||
pH Range | -2.000~20.000pH | ||
pH Accuracy | ±0.002pH | ||
Resolution | 0.001, 0.01, 0.1pH, Selectable | ||
mV Range | -1999.9~1999.9mV | ||
mV Accuracy | ±0.2mV | ||
Resolution | 0.1, 1mV, Selectable | ||
Calibration Points | Up to 5 points | ||
Calibration Solutions | 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) | ||
Temperature Range | 0~105°C, 32~221°F | ||
Temperature Accuracy | ±0.5°C, ±0.9°F | ||
Temperature Calibration | Manual | ||
Temperature Compensation | 0~100°C, 32~212°F, Automatic or Manual | ||
Auto-Off | Manual or Automatic (10, 20, 30 minutes after last key pressed, Selectable) | ||
Hold Function | Manual or Automatic endpoint | ||
Stability Conditions | Low or High, Selectable | ||
Calibration due reminder | 1 to 30 days or Off | ||
Reset Function | Yes | ||
Memory | 500 data sets with Date/Time stamping | ||
Output | USB Communication Interface | ||
Connector | BNC | ||
Power Requirements | 3×1.5V "AA" batteries | ||
Battery Life | Approximately 150 hours | ||
Dimensions | 170(L)×85(W)×30(H)mm | ||
Weight | 300 grams |
Order code and Accessories:
Order Code | Accessories | |
KD221-UK | P11 pH Electrode (Made in UK), Standard pH Buffers, Temperature Probe, Batteries, Carrying Case | |
KD221-CN | E65-1 pH Electrode (Made in China), Standard pH Buffers, Temperature Probe, Batteries, Carrying Case | |
KD221-ORP | E65-1 pH Electrode, 501 ORP Electrode, Standard pH Buffers, Temperature Probe, Batteries, Carrying Case |
Payment Terms
1. All the payments required before
2.Time of delivery: within 7 days after receipt of payment
3.Term of payment: company account or west union
4.100% T/T Payment in advance
5.Validity: 30 working days
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