Hanna Instruments HI-701

Hanna Instruments HI701 Checker HC Handheld Colorimeter User Manual

Model: HI-701 | Brand: Hanna Instruments

สินค้าเกินview

The Hanna Instruments HI701 Checker HC is a compact and accurate handheld colorimeter designed for the precise measurement of free chlorine levels. This device offers a simpler and more cost-effective alternative to traditional chemical test kits, providing digital readings for enhanced reliability. Its single-button operation and clear LCD screen make it user-friendly for various applications, including water quality testing, environmental monitoring, and pool and spa maintenance.

Hanna Instruments HI701 Checker HC Handheld Colorimeter

Figure 1: The Hanna Instruments HI701 Checker HC Handheld Colorimeter, a compact device for free chlorine measurement.

การตั้งค่า

Before using your HI701 Checker HC, follow these steps to ensure proper setup:

  1. แกะอุปกรณ์ออกจากกล่อง: Carefully remove the colorimeter and all accessories from its packaging. Inspect for any visible damage.
  2. ติดตั้งแบตเตอรี่: Open the battery compartment and insert one 1.5V AAA battery, ensuring correct polarity. The device requires 2 A batteries according to specifications, but the operational instructions refer to a single AAA battery. Please refer to the device's battery compartment markings for definitive guidance.
  3. Prepare Cuvettes: Ensure the glass cuvettes are clean and free from scratches or fingerprints. Use a lint-free cloth to wipe them clean before each use.
Hanna Instruments HI701 Checker HC in its carrying case with accessories

Figure 2: The HI701 Checker HC, cuvettes, and reagents neatly stored in the included carrying case.

คำแนะนำการใช้งาน

The HI701 Checker HC operates with a simple, single-button interface. Follow these steps for accurate free chlorine measurements:

  1. เปิดเครื่อง: Press the button once to turn on the colorimeter. The display will show "Add C1" (Cuvette 1).
  2. ตั้งค่าอุปกรณ์ให้เป็นศูนย์: Fill a clean cuvette with 10 mL of your unreacted water sample. Cap the cuvette and insert it into the checker. Press the button. The display will show "Add C2" (Cuvette 2) after the zeroing process is complete. This step establishes a baseline for your measurement.
  3. Prepare Reacted Sampเลอ: Remove the cuvette. Add one packet of HI701-25 Free Chlorine Reagent to the sample in the cuvette. Cap the cuvette and shake gently for approximately 20 seconds to dissolve the reagent.
  4. Insert Reacted Sampเลอ: Reinsert the cuvette containing the reacted sample into the checker.
  5. เริ่มการวัด: Press the button. The display will show a countdown timer (e.g., "2:30" for 2 minutes and 30 seconds). This allows for the chemical reaction to complete.
  6. อ่านผลลัพธ์: Once the countdown finishes, the display will show the free chlorine concentration in ppm (parts per million).

The HI701 uses the EPA approved diethyl-p-phenylenediamine (DPD) method for free chlorine determination. The large LCD screen ensures clear readability of results. The device features an auto shut-off function to conserve battery life after a period of inactivity.

Hanna Instruments HI701 Checker HC displaying a free chlorine reading

Figure 3: The HI701 Checker HC displaying a free chlorine measurement on its large LCD screen.

Hanna Instruments HI701 Checker HC with a cuvette inserted for measurement

Figure 4: A cuvette containing the sample is inserted into the HI701 Checker HC for analysis.

Hanna Instruments HI701 Checker HC with reagents and sampเลอขวด

Figure 5: The HI701 Checker HC alongside the necessary reagents and sample vials for testing.

การซ่อมบำรุง

Proper maintenance ensures the longevity and accuracy of your HI701 Checker HC:

Hanna Instruments HI701 Checker HC with its lid open, showing the cuvette slot

Figure 6: The HI701 Checker HC with its protective lid open, revealing the cuvette insertion slot, which should be kept clean.

การแก้ไขปัญหา

If you encounter issues with your HI701 Checker HC, refer to the following common problems and solutions:

ปัญหาสาเหตุที่เป็นไปได้สารละลาย
อุปกรณ์ไม่เปิดแบตเตอรี่หมดหรือใส่ไม่ถูกต้องReplace the battery, ensuring correct polarity.
การอ่านค่าที่ไม่ถูกต้องหรือไม่สม่ำเสมอ
  • Dirty or scratched cuvette.
  • Expired or incorrect reagent.
  • ไม่เหมาะสม sample preparation (e.g., incorrect pH, insufficient mixing).
  • Optical path obstruction.
  • Clean or replace cuvette.
  • Use fresh, correct reagent.
  • Review sample preparation steps, ensure proper pH (less than 8.2 for DPD method).
  • Clean the cuvette slot.
ข้อความ "Err" ปรากฏบนหน้าจอMeasurement outside the device's range (0.00 to 2.50 ppm Free Chlorine).เจือจาง sample if concentration is too high, or re-test if too low. Ensure proper zeroing.

ข้อมูลจำเพาะ

Detailed specifications for the Hanna Instruments HI701 Checker HC:

คุณสมบัติรายละเอียด
หมายเลขรุ่นHI-701
พารามิเตอร์คลอรีนอิสระ
พิสัย0.00 ถึง 2.50 ppm (มก./ลิตร)
ปณิธาน0.01 ppm (มก./ลิตร)
ความแม่นยำ±0.03 ppm ±3% ของค่าที่อ่านได้
แหล่งกำเนิดแสงLED @ 525 nm
เครื่องตรวจจับแสงตาแมวซิลิคอน
วิธีAdaptation of the EPA DPD method 330.5
แหล่งจ่ายไฟ1 x 1.5V AAA battery (Note: Product specifications mention "2 A batteries required", please verify with device markings.)
ปิดเครื่องอัตโนมัติหลังจากไม่ใช้งาน 10 นาที
ขนาดขนาด 50 x 50 x 50 นิ้ว (ประมาณ 127 x 127 x 127 เซนติเมตร); น้ำหนัก 10.58 ออนซ์ (ประมาณ 300 กรัม)
ผู้ผลิตฮันน่า อินสทรูเมนท์
การใช้ที่แนะนำWater Quality, Environmental Testing, Pools & Spas
ยูพีซี611517433696

การรับประกันและการสนับสนุน

For warranty information or technical support regarding your Hanna Instruments HI701 Checker HC, please contact Hanna Instruments directly or refer to the official documentation provided with your purchase. A digital user manual is also available for download from the product's Amazon page or the Hanna Instruments webเว็บไซต์.

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