HI9146 วัดปริมาณออกซิเจนในน้ำออกแบบมาเพื่อให้มีความแม่นยำและความถูกต้อง มีย่านการวัด 0.00 – 45.00 ppm (mg/L) และ 0.0 – 300.0% saturation ด้วยความละเอียด 0.01 ppm (mg/L) และ0.1% saturation ด้วยความถูกต้อง ±1.5%
DO meter รุ่นนี้มีคุณสมบัติหลายอย่างรวมทั้งการสอบเทียบอัตโนมัติ และการชดเชยอุณหภูมิ ความเค็มและความสูง มีระบบป้องกันข้อผิดพลาดแบตเตอรี่ (BEPS) ที่ตรวจพบเมื่อแบตเตอรี่นอ่อนเกินไปเพื่อให้แน่ใจว่าค่าการวัดความน่าเชื่อถือ คุณภาพสูงมีใบรับรองการสอบเทียบ (Certificate) จากโรงงาน มีคู่มือการใช้งานภาษาไทย ขายราคาถูก จัดส่งทั่วไทย
วิดีโอแนะนำสินค้า HI9146 DO Meter วัดปริมาณออกซิเจนในน้ำ
คุณสมบัติ DO Meter รุ่น HI9146
- Polarographic Measuring System: The meter and probe use polarographic sensor technology based on the Ross and Clark polarographic measurement method. The probe is comprised of a platinum cathode and silver anode in an electrolyte solution held in place over the surfaces of the electrodes by a polymer membrane. An external voltage applied across the system establishes a current proportional to the concentration of dissolved oxygen.
- Replaceable Membrane Caps: The pretensioned thin polytetrafluoroethylene (PTFE) membranes employ a screw cap design that can be changed quickly by simply filling with the HI7041 electrolyte fill solution and screw on the DO probe.
- Automatic Calibration: Calibration can be performed at one or two points to 100% and/or 0% saturation. The 100% saturation is done in air while the 0% is done with the HI7040 bicomponent zero oxygen solution.
- Good Laboratory Practice (GLP): The Good Laboratory Practice feature allows the user to recall calibration information including date, time and calibrations points.
- Automatic Temperature Compensation: All readings are automatically compensated for temperature variations with a high accuracy, built-in linearized thermistor temperature sensor behind a stainless steel cover.
- Altitude Compensation: The HI9146 allows for altitude compensation for up to 4000 meters with a 100-meter resolution.
- Salinity Compensation: Salinity compensation is adjustable from 0 to 80 g/L (ppt) with a 1 g/L resolution for the measurement of DO in brackish and sea water.
- Auto End Point: The HI9146 features an auto endpoint mode in which, when selected, the reading will freeze on the display once a stable measurement is obtained. The auto-end feature allows for consistency among various users by ensuring that stability has been achieved before recording a measurement.
- Backlit LCD: The HI9146 has a display with a backlight for easy viewing of readings in poor lighting conditions.
- Battery Error Prevention System (BEPS): The Battery Error Prevention System detects when the batteries become too weak to ensure reliable measurements. The backlight feature is automatically disabled when batteries are getting low and a clear indication is displayed to warn the user of this condition.
Specifications HI9146
- DO Range: 0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation
- DO Resolution: 0.01 ppm (mg/L); 0.1% saturation
- DO Accuracy: ±1.5% F.S. or ±1 digit, whichever is greater
- DO Calibration: One or two points at 0% (HI 7040 solution) and 100% (in air)
- Temperature Range: 0.0 to 50.0°C / 32.0 to 122.0°F
- Temperature Resolution: 0.1°C / 0.1°F
- Temperature Accuracy: ±0.2°C; ±0.4°F (excluding probe error)
- Temperature Compensation automatic: 0 to 50°C (32 to 122°F)
- Altitude Compensation : 0 to 4000 m (resolution 100 m)
- Salinity Compenstaion: 0 to 80 g/L (ppt) (resolution 1 g/L)
- Electrode/Probe polarographic DO probe, internal temperature sensor, DIN connector
- Battery Type/Life: 1.5V AAA (3) /approximately 200 hours of continuous use without backlight (50 hours with backlight on)
- Environment: 0 to 50°C (32 to 122°F); RH max 95%
- Dimensions: 185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)
- Weight: 300 g (10.6 oz.)
การสั่งซื้อ HI9146 มีอยู่ 2รุ่น ได้แก่ HI9146-04 และ HI9146-10 ความแตกต่างคือความยาวของสายวัด (Probe)
- HI9146-04 is supplied complete with HI76407/4F probe with 4 m (13.1’) cable, HI76407A membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.
- HI9146-10 is supplied complete with HI76407/10F probe with 10 m (32.8’) cable, HI76407A membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.
