Walchem WDT400 Series Instruction Manual

Walchem WDT400 Series Instruction Manual Manual pdf 6 page image

2.4 WDT Variables and their LimitsLow Limit High LimitConductivity menuPPM Conversion Factor 0.200 ppm/μS/cm 1.000 ppm/μS/cmInterval Time (sampling) 5 minutes 24:00 hoursDuration Time (sampling) 1 minute 59 min: 59 sec% Calibration Range -50 +50Temperature Menu No variablesBleed MenuSet Point 0 μS/cm 10,000 μS/cmDead Band 5 μS/cm 500 μS/cmBleed Limit Time (set in hours/minutes) 1 minute 8 hrs: 20 min(enabled)0=unlimited (disabled)Feed MenuFeed Lockout Timer (Mode A) 1 second 99 min: 59 secPercent of Bleed (Mode B) 5 % 99 %Feed Time Limit (Mode B) 1 minute 99 min: 59 secPercent of Time (Mode C) 5 % 99 %Feed Cycle Time (Mode C) 10 minutes 59 min: 59 secTime per Contact (Mode D) 1 second 59 min: 59 sec÷ Contacts by (Mode D) 1 contact 100 contactsTime Limit (Mode D & E) 1 minute 99 min: 59 secTime/Vol (Mode E) 1 second 59 min: 59 secVol to Initiate Feed (Mode E) 1 9,999WM1 and WM2 MenusGallons per Contact 1 gal/contact 500 gal/contactLiters per Contact 1 L/contact 500 L/contactK Factor (Paddlewheel) 0.01 pulse/vol 999.99 pulses/vol4-20 mA Menus 4 & 20 mA Settings 0 μS/cm 10,000 μS/cmAccess Code New Value 0 9999Alarms Menu* High & Low (set to zero to disable) 1% 50%Datalog Menu (Optional) No variablesConfig Menu (Optional) No variablesUpgrade Menu No variables*Note: The Alarm relay is non-programmable. Refer to the Main Menu diagram on page 16 for the list of errorconditions that trigger the alarm relay.3