Electro-chemical-devices-ecd L20 Bedienungsanleitung

Model L20 Instruction Manual Microprocessor based pH, ORP, Temperature Bench Top Meter Electro-Chemical Devices, Inc. 1681 Kettering, Irvine, CA 92

4. Rinse the pH and ATC/Temp probe in distilled water and immerse them in the second buffer solution (either 4.00/4.01 or 9.18/10.01). Allow temperat

then press “Slope” key to calibrate. Once the unit calibrates the second point, the “SLOPE” icon will flash. The unit is ready to be sloped at the thi

track the pH value as sensed by the pH electrode and the ATC/Temp probe. 5. When the “WAIT” icon disappears, the reading is then “LOCK” and will not

3. Rinse the pH electrode and ATC/temp probe with distilled water and immerse in the sample to be measured. 4. Allow sufficient time for the display

[Note: For samples that are inherently unstable, the unit will not AUTOLOCK. In this case, use the pH NON- AUTOLOCK mode for measurements.] Measuremen

Error Displays and troubleshooting Main Display Possible Causes Corrective Actions “Er1” ● “Stand” was pressed before the electrode and ATC/Temp probe

Specifications Display Range Resolution Accuracy pH -2.00 to 16.00 pH 0.01 pH ±0.1% FS mV -1999 to 1999 mV 1 mV ±0.1% FS Temperature 0.0 to 100.0 °C 0

17

Warranty Electro-Chemical Devices, Inc. (ECD) warrants all products it manufactures to be free from defect in materials and factory workmanship, and a

19

Contents General Introduction………………………. 3 Initial Inspection……………………………... 3 Powering the Unit……………………………. 4 Installing the Batteries…………………….. 4 Dis

1681 Kettering, Irvine, CA USA Phone +1 949 336-6060 FAX +1 949 336-6064 www.ecdi.com 20

General Introduction Thank you for selecting the Model L20 pH meter. The Model L20 is a precision tool that measures pH, mV, ORP and temperature. A b

Powering the Unit The model pH6175 can be powered by an 115V or 230VAC adaptor as well as 6 “AAA” alkaline batteries. Check the label on the AC 3 adap

Display and Key Functions A. Display Figure 2 1. WAIT This will be displayed when the unit is still waiting for a stable reading or end point sensin

B. Keys On/Off Press and hold this key for 5 seconds to power on and shut off the meter. Once the unit is power up, press the same key to turn on or

Operational Procedures A. Buffer Set Selection The Model L20 meter has two buffer sets: 7.00, 4.01, 10.01pH and 6.86, 4.00, 9.18 pH. The meter is fact

4. Rinse the pH and ATC/Temp probe in distilled water and immerse them in the second buffer solution (either 4.00/4.01 or 9.18/10.01). Allow temperat

buffers start to flash. The unit is ready to be sloped at the second buffer. 4. Rinse the pH probe in distilled water and immerse it in the second bu