Hexavalent Chromium Online Water Quality Analyzer 0~5mg/L ‌Measuring Range‌

Diphenylcarbazide Spectrophotometric Method

0~5mg/L (segmented measurement, expandable)

≤0.02mg/L

0.001mg/L

±10%

≤±5%

‌Drift (24h)‌

Zero drift: ±5%

Span drift: ±10%

<20min (digestion time adjustable)

Adjustable time interval, fixed time point, or triggered measurement

‌Calibration Modes‌

Automatic calibration (1~99 days adjustable)

Manual calibration based on actual water samples

‌Maintenance Cycle‌

1 month per session; ~30min per maintenance

Touchscreen display and command input

‌Self-Diagnosis & Protection‌

Self-diagnoses operational status; retains data during anomalies/power outages

Automatically clears residual reactants and resumes operation after reset/power recovery

5-year data capacity

Digital input

‌Output Interfaces‌

1× RS232, 1× RS485

2× 4~20mA analog outputs

‌Operating Environment‌

Indoor use; recommended temperature: 5~28℃, humidity ≤90% (non-condensing)

‌Power Supply‌

Voltage: AC 220±10% V

Frequency: 50±0.5 Hz

Power: ≤150W (excluding sampling pump)

‌Dimensions‌

520H × 370W × 265D (mm)