do_troubleshooting
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do_troubleshooting [10/04/2018 09:34] pieter [Check the electrode] |
do_troubleshooting [13/06/2018 08:19] pieter |
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| 1. The condition of the electrode' | 1. The condition of the electrode' | ||
| * The correct electrolyte solution should be used! Use only the solution that is supplied with the electrode or the membrane kit (article code SZ02K). | * The correct electrolyte solution should be used! Use only the solution that is supplied with the electrode or the membrane kit (article code SZ02K). | ||
| - | * The membrane (Teflon) should be intact, use a magnifying glass to check for visual damage, replace when required. | + | * The membrane (Teflon) should be intact, use a magnifying glass to check for visual damage, replace when required. If not sure, try with a new membrane. |
| * The plastic body and the screw threads should be clean and intact. | * The plastic body and the screw threads should be clean and intact. | ||
| * The O-ring should be present, intact and correctly placed. | * The O-ring should be present, intact and correctly placed. | ||
| Line 23: | Line 23: | ||
| * This same NTC value should be measured between the two electrode metals Lead and Platinum at the electrode type. Value? ....... Ohm | * This same NTC value should be measured between the two electrode metals Lead and Platinum at the electrode type. Value? ....... Ohm | ||
| * Another measurement is between the BNC plug contacts and the metals (Lead and Platinum) at the electrode tip. Be careful when touching the Platinum metal cap at the tip as it easily detaches from the electrode which would destroy it permanently. Each metal is connected to one of the BNC contacts and should measure around zero Ohm. | * Another measurement is between the BNC plug contacts and the metals (Lead and Platinum) at the electrode tip. Be careful when touching the Platinum metal cap at the tip as it easily detaches from the electrode which would destroy it permanently. Each metal is connected to one of the BNC contacts and should measure around zero Ohm. | ||
| - | * Value between the BNC outer conductor and Lead metal? ....... Ohm | + | * Value between the BNC outer conductor and Lead metal? ....... Ohm (should be zero) |
| - | * Value between the BNC central pin and Platinum tip? ....... Ohm | + | * Value between the BNC central pin and Platinum tip? ....... Ohm (should be zero) |
| - | * Value between the BNC outer conductor and Platinum tip? ....... Ohm | + | * Value between the BNC outer conductor and Platinum tip? ....... Ohm (should be NTC value) |
| - | * Value between the BNC central pin and Lead metal? ....... Ohm | + | * Value between the BNC central pin and Lead metal? ....... Ohm (should be NTC value) |
| * A resistance measurement between the temperature banana plugs should give a resistance value around 1100 Ohm @ 25°C. This resistance should increase when becoming warmer. Value? ....... Ohm | * A resistance measurement between the temperature banana plugs should give a resistance value around 1100 Ohm @ 25°C. This resistance should increase when becoming warmer. Value? ....... Ohm | ||
| 3. When 1. and 2. are found to be OK. The electrode should be reassembled. Watch very carefully for the correct placement of membrane, O-ring and membrane cap. After reassembling, | 3. When 1. and 2. are found to be OK. The electrode should be reassembled. Watch very carefully for the correct placement of membrane, O-ring and membrane cap. After reassembling, | ||
do_troubleshooting.txt · Last modified: 13/06/2018 08:19 by pieter
