เครื่องวัดความกระด้างของน้ำ Total Hardness Photometer
รุ่น HI97735 แบรนด์ HANNA

เครื่องทดสอบคุณภาพน้ำ ตัวเครื่องกันน้ำได้ ใช้งานง่าย พกพาสะดวก มีระบบออปติคัลขั้นสูงที่ให้ประสิทธิภาพในด้านความแม่นยำ และสามารถทำซ้ำได้ในระยะเวลาอันสั้น เครื่องวัด HI97735 สามารถวัดความกระด้างทั้งหมดในตัวอย่างน้ำได้ถึง 750 มก./ลิตร (ppm) CaCO3

Description

The HI97735 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement. This compact, waterproof meter is extremely user friendly with a tutorial mode that walks the user graphically, step by step, in performing a measurement. The use of a backlit dot matrix LED allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different methods, reviewing GLP data, recalling the last 50 measurements, and customising the meter to user preferences.

Specifications

TOTAL HARDNESS - LOW RANGE
Range: 0 to 250 mg/L (as CaCO3)
Resolution: 1mg/L
Accuracy @ 25°C: ±5mg/L ±4% of reading at 25°C
Method: Adaptation of the EPA recommended method 130.1

TOTAL HARDNESS – MEDIUM RANGE
Range: 200 to 500 mg/L (as CaCO3)
Resolution: 1mg/L
Accuracy @ 25°C: ±7mg/L ±3% of reading at 25°C
Method: Adaptation of the EPA recommended method 130.1

TOTAL HARDNESS – HIGH RANGE
Range: 400 to 750 mg/L (as CaCO3)
Resolution: 1mg/L
Accuracy @ 25°C: ±10mg/L ±2% of reading at 25°C
Method: Adaptation of the EPA recommended method 130.1

MEASUREMENT SYSTEM
Light Source: Light emitting diode
Bandpass filter: 466nm
Bandpass filter bandwidth: 8nm
Bandpass filter wavelength accuracy: ±1.0nm
Light detector: Silicon photocell
Cuvette type: Round 24.6mm diameter (22 mm inside)

ADDITIONAL SPECIFICATIONS
Auto logging: 50 readings
Display: 128 x 64 pixel B/W LCD with backlight
Auto off: After 15 minutes of inactivity (30 minutes before a READ measurement)
Battery type/life: Alkaline 1.5 V AA (3) / > 800 measurements (without backlight)
Environment: 0 to 50°C; 0 to 100% RH, non-serviceable
Dimensions: 142.4 x 102.5 x 50.5 mm
Weight: 380g