1. Nhanganyaya
This manual provides detailed instructions for the Apera Instruments GroStar Series GS3 EC/ppm Pen Tester Kit (AI103G). This lab-grade conductivity meter is designed for accurate measurement of EC (Electrical Conductivity), 500ppm, and 700ppm, along with temperature, making it suitable for hydroponics and general water quality testing. The device features a replaceable titanium conductivity sensor and a user-friendly interface.
2. Chigadzirwa Pamusoroview
The GroStar Series GS3 EC/ppm Pen Tester is engineered for reliability and ease of use. Key features include:
- Measures conductivity (EC), 500ppm, 700ppm, and temperature.
- Replaceable titanium sensor for high accuracy in the 0 to 10 EC range.
- Backlit HD screen for clear readings.
- Grower-friendly calibration workflow with a calibration reminder function.
Figure 1: Apera Instruments GroStar Series GS3 EC/ppm Pen Tester.
Mufananidzo 2: Pedyo-kumusoro view of the durable titanium alloy sensor for conductivity measurements.
Figure 3: The GroStar GS3 Pen Tester demonstrating its water resistance during use.
3. Setup
Before first use, ensure all components are present and the device is ready for operation.
3.1 Chii chiri muBhokisi
- Apera Instruments GroStar Series GS3 EC/ppm Pen Tester (Gen II)
- 2.77 EC Calibration Solution
- Lanyard
- Mabhatiri mana eAAA (akaiswa kare kana kuti akaiswa oga)
Figure 4: The complete kit contents, including the tester, calibration solution, and lanyard.
3.2 Kuiswa kwebhatiri
The device requires 4 AAA batteries. If not pre-installed, open the battery compartment located at the top of the tester, insert the batteries according to the polarity indicators, and securely close the compartment.
3.3 Kugadzirira Kwekutanga
- Bvisa chivharo chekudzivirira kubva kune sensor.
- Rinse the sensor with distilled or deionized water.
- Gently shake off excess water.
4. Operating Instructions
4.1 Simba On/Kudzima
Press the SIMBA button to turn the tester on or off.
4.2 Kutora Chiyero
- Ensure the tester is clean and calibrated.
- Nyura iyo sensor mu sampmhinduro, ichiita kuti sensor inyudzwe zvizere.
- Stir gently and wait for the reading to stabilize on the display.
- The display will show EC/ppm and temperature readings.
4.3 Switching Measurement Modes (EC/ppm)
Press the MODE/UNITS button to cycle through EC, 500ppm, and 700ppm measurement modes.
Figure 5: The tester's display cycling through different measurement units.
4.4 Bata Basa
Press the BATA bhatani kuti uomese kuverenga kuripo pachiratidziro. Dzvanya zvakare kuti ubvise.
4.5 TruRead Display
The TruRead display provides MAX, AVG, and MIN readings, offering a comprehensive view of your measurements.
Figure 6: The TruRead display feature, showing maximum, average, and minimum recorded values.
5. Calibration
Regular calibration ensures accurate measurements. The GS3 features a grower-friendly calibration workflow and a reminder function.
5.1 Calibration Maitiro
- Batidza tester.
- Press the CAL bhatani rekupinda mu calibration mode.
- Immerse the sensor into the 2.77 EC calibration solution.
- The tester will automatically recognize the solution and calibrate. Wait for the stable reading and confirmation.
- Rinse the sensor with distilled water after calibration.
Figure 7: Visual representation of the tester's display in measurement, calibration, and error states.
5.2 Calibration Reminder
The tester will automatically remind you when recalibration is due, ensuring consistent accuracy.
6. Kuchengeta
6.1 Kuchenesa Sensor
After each use, rinse the sensor thoroughly with distilled or deionized water to prevent residue buildup. Do not scrub the sensor vigorously.
6.2 Kuchengeta
Always replace the protective cap after use. For long-term storage, ensure the sensor is kept moist. Refer to the product packaging or Apera Instruments website for specific storage solution recommendations if applicable.
6.3 Kutsiva Sensor
The titanium EC sensor is replaceable. If the sensor performance degrades significantly or it becomes damaged, a new sensor can be purchased and easily installed by twisting off the old one and attaching the new one.
7. Kugadzirisa matambudziko
| Dambudziko | Zvinogona Kukonzera | Solution |
|---|---|---|
| Kurava kusina kururama | Sensor is dirty or dry; Calibration is outdated or incorrect; Damaged sensor. | Clean the sensor; Recalibrate the tester; Replace the sensor if damaged. |
| Tester does not power on | Dead batteries; Incorrect battery installation. | Tsiva mabhatiri; Tarisa polarity yebhatiri. |
| "CAL Er" error during calibration | Incorrect calibration solution; Contaminated solution; Sensor issue. | Ensure correct 2.77 EC solution is used; Use fresh calibration solution; Clean or replace sensor. |
8. Zvinotsanangurwa
- Model Number: AI103G
- Zviyero zvechigadzirwa: 7 x 1.5 x 1.3 inches
- Kurema 4.69 ounces
- Kunobva Simba: 4 AAA mabhatiri (akabatanidzwa)
- Sensor Type: Replaceable Titanium EC Probe
- Measurement Parameters: EC, 500ppm, 700ppm, Temperature
- Zuva Rokutanga Kuwanikwa: Gunyana 28, 2022
9. Warranty uye Tsigiro
Apera Instruments products are backed by a manufacturer's warranty. For detailed warranty information, technical support, or to purchase replacement parts, please visit the official Apera Instruments websaiti kana kubata basa ravo revatengi zvakananga. Chengeta risiti yako yekutenga yezvichemo zvewaranti.
Mugadziri: Apera Instruments
