Premium Series PH5S Spear pH Tester User Manual APERA INSTRUMENTS (Europe) GmbH www.aperainst.de v7.
Thank you for purchasing Apera Instruments PH5S Premium Spear pH Tester. Please read this manual before use in order to properly use and maintain the product. For video tutorials, please go to support.aperainst.de Table of Contents 1 What’s in the Kit....................................................................................................................... 3 2 Keypad Functions....................................................................................................................
1 What’s in the Kit PH60S Tester Calibration Vials 2 Keypad Functions Short press: < 2 seconds Long press: > 2 seconds 1. Short press to turn on the tester and long press to turn off the tester. 2. When turned off, long press to enter parameter setting. 3. In measurement mode, short press to turn on backlight. 4. In calibration mode, short press to cancel calibration. 1. In measurement mode, short press to switch between pH and mV. 2. In settings, short press to change parameters (Unidirectional). 1.
3 Preparation Before Use 3.1 Pull out the battery insulation slip, and take off the probe cap. 3.2 Rinse off the probe in pure water (preferably distilled or deionized water. RO water or tap water is the alternative), then shake off excess water (see graph on the right). 3.3 Perform at least a 2-point calibration. For tutorial, refer to Section 4. 3.4 When you are not using the tester, always store the spear probe in the 3M KCL soaking solution. Never let it dry out.
replace the buffer solutions in the calibration vials with new ones to keep the accuracy. Keeping the freshness and cleanliness of calibration buffers is essential for accurate pH measurement. c) The tester can perform 1 to 3 points of automatic calibration and can recognize 5 types of pH standard solutions. For details, please refer to the following table: Calibration USA Series NIST Series 1-pt 7.00 pH 6.86 pH 2-pt 3-pt 5 5.1 Indication icon 1st pt: 7.00 pH 1st pt: 6.
.2 For tough contaminants, detach the sensor shield, soak the probe in Apera probe cleaning solution (AI1166) or detergent water for 30 minutes. Then use a soft brush to remove the contaminants. Afterwards, soak the probe in 3M KCL soaking solution for at least 1 hour. Rinse it off, then re-calibrate the tester before using again. 7 Probe Storage 7.1 Always store the spear probe in the 3M KCL soaking solution when not in use. Never let it dry out. Replace the soaking solution if it gets contaminated.
■ Alarm triggered when measurement ≤ 3.20 pH: Preset lowest value (P2) = 3.20 pH, highest value (P3) = 14.00 pH, when measured value ≤ 3.20 pH (stable displays on screen); screen turns red. ■ Alarm triggered when measurement ≥ 8.60 pH: Preset highest value (P3) = 8.60 pH, lowest value (P2) = 0.00 pH, when measured value ≥ 8.60 pH (stable displays on screen); screen turns red. ■ Alarm triggered when measurement ≤ 3.20 pH or ≥ 8.60 pH Preset lowest value (P2) = 3.20 pH, highest value (P3) = 8.
Measuring Range ± 1000 mV Resolution 1 mV Accuracy ±0.2% F.S Measuring Range 0 – 50˚C (32 – 122˚F) Resolution 0.1˚C Accuracy ±0.5˚C ORP (mV) Temp. 11 Other Specifications Screen 3-color LCD screen, Blue: Measurement; Green: Calibration; Red: Alarm Reading Lock HOLD flashing, reminder of battery replacement needed Low-Voltage Warning Auto.
13 Notes a) Avoid testing in very high (>113°F) or very low (<41°F) temperature solutions as it will cause greater measurement error and potential damage to the probe. Test your samples and perform calibration close to room temperature as much as possible. b) Never use your finger to touch the glass membrane or use other material to rub it. Doing so could generate static electricity and cause measurement errors. Never test oily liquids. c) Make sure the battery cap is completely closed with the red O-ring.
15 Troubleshooting Guide Trouble Reason Pressing too soon (showing Cannot calibrate Reading is always How to fix ) Wait for to stay on screen before pressing . Incorrect standard solutions (showing ) Reboot tester, calibrate pH 7 first, then pH 4. For details refer to Section 4.2 (a). Poor quality standard solutions (showing ) Replace with fresh and clean standard calibration solutions made by legitimate scientific instrument manufacturers.
Reading keeps jumping Probe is not fully submerged in the solution Make sure the probe is fully immersed in the solution at least 1 inch. Air bubbles around the sensor shield Make a quick stir in the solution to remove air bubbles. Probe is not properly connected, or the pin connector is broken. Check the probe’s connector, make sure it’s not broken and is correctly connected. Align the probe and instrument correctly before plugging in. Never force it.
16 Warranty We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at option of APERA INSTRUMENTS (Europe) GmbH, any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS (Europe) GmbH for a period of TWO YEARS (SIX MONTHS for the probe) from the delivery.
