Parker Digital MXR-D 4065D User Manual

Contents

Parker Digital MXR-D 4065D User Manual Manual pdf 15 page image

15Display / Condition Meaning User ActionTotal Flow%N2O 50 6 L/MNormal display condition for50% N2O settingAdjust % N2O and Total Flow knobsto desired concentration. Thedisplay will change by every 0.5Liter increments when the TotalFlow knob is turned, and the % N2Owill change by every 5% incrementsas you turn the knob.Failsafe / ServiceIs Required, TurnOff N2O SourceAudible alarm will sound.Display will Flash.1) Possible failsafe failure:Nitrous Oxide is flowingwithout Oxygen or NitrousOxide is flowing more than70%2) This display may appearafter a power interruption orpower outage.1) End procedure. Confirm failsafeoperation by performing safetycheck on Nitrous Oxide failsafesystem. If failsafe failure isconfirmed, flowmeter should beremoved for servicing.2) Follow Initialization Procedurebelow. If display continues to showFailsafe message, follow Step 1above.Low O2 Flow, TurnKnob to IncreaseO2 Flow, Check O2Source (Tanks)Audible alarm will sound.Display will Flash.1) Oxygen flowrate is below1 L/min.2) Oxygen regulator isvarying pipeline pressure.3) Empty Oxygen cylinders.4) O2 Connect feature is inuse.1) Increase Oxygen flowrate byturning the Total Flow Knobcounter-clockwise. Unit will stopbeeping.2) Check Oxygen regulator,manifold pressure setting should be50 PSIG ±2 PSIG.3) Replace with full cylinder.4) Remove quick connect from O2Connect port to return display tonormal.O2 Flush ConditionDisplay will not indicateaccurate flow settings.When the O2 Flush button isactivated / pushed in, extradelivery of Oxygen (about 35L/min) is provided to thebreathing bag. However, thereading displayed by thedigital display will not displaythe actual flow and percent.Remove finger from O2 Flush buttonto deactivate. Releasing buttonreturns unit to flowrate and mixtureratio before flush activation.Low O2 FlushService is RequiredThe unit is flowing less than25 L/min of Oxygen when theO2 Flush button is pushed in.N2O % OutsideTolerances, Turn KnobTo Reduce N2O%% N2O measurement isabove 70.0% concentration.Turn % N2O knob clockwise toreduce / decrease % N2O flowrate.INITIALIZATION PROCEDUREThese steps are required for new installations or may be required when a power interruption /outage occurs and the flowmeter’s switch is in the STANDBY position and the unit is off for 15minutes or longer (and Failsafe message appears).1. Confirm power supply is plugged into the power source and the back of flowmeter.2. Turn On / Standby switch to the ON position and wait 20 seconds.3. Then, turn On / Standby switch to the STANDBY (Off) position and wait 20 seconds (auto-zero).4. Turn On / Standby switch to the ON position and the unit will display initial sequence startup. Ifdisplay continues to show a Failsafe message, flowmeter should be removed for service.