Blog posts of '2014' 'February'

STATIM / STATIM 1000 / 2000 UNITS CONTAIN ELECTRONIC COMPONENTS WHICH MAY BE DAMAGED OR
DESTROYED BY ELECTROSTATIC DISCHARGE (ESD). IF THE RESERVOIR HAS BEEN DRAINED PRIOR TO TRANSPORT
OR IF A NEW RESERVOIR IS BEING INSTALLED INTO THE UNIT, DISCHARGE THE PLASTIC RESERVOIR PRIOR TO
DIAGNOSING CONDUCTIVITY SENSOR PROBLEMS OR INSTALLATION.
WHEN INSTALLING A NEW RESERVOIR, ALWAYS SHORT THE SENSOR LEADS TO THE CHASSIS WHILE
FILLING THERESERVOIR FOR THE FIRST TIME.
Before starting diagnostic procedures check that:
1. The reservoir is free of any debris and the conductivity sensor is clean.
2. The reservoir is filled with good quality steam distilled process water so that the conductivity sensor is completely
submerged. If in doubt about water quality, drain the reservoir and refill with steam-process distilled water containing less
than 5 ppm total dissolved solids or having conductivity less than 10 μS/cm.
3. The leads of the conductivity sensor are securely connected to Controller Board – check latest TSB for connections.
4. Nothing is connected to Controller Board terminal positions labeled FLOAT J4-5 and J4-6.
5. The Controller Board is clean and dry (both sides). Pay particular attention to terminal block J4 and components on the
upper right hand portion of the board.
6. For rev 2.x, 5.x and 6.x Controller Boards, measure the negative voltage across test connector header positions P1-1
and P1-3. If the voltage reading is not within -8.4V to -9.7V, replace the Controller Board.
To check the Conductivity sensor, follow these steps:
1. Power the unit OFF and disconnect the sensor leads from Controller Board connector positions J4-3 and J4-4.
2. Power the unit ON and start an Unwrapped cycle.
3. If a "REFILL RESERVOIR, EMPTY WASTE BOTTLE" message appears on the LCD, proceed to step 4. If the cycle
starts when the sensor leads are disconnected, replace the Controller Board.
4. Short Controller Board connector positions J4-3 and J4-4 together and start a cycle. If the unit displays a "WATER
QUALITY NOT ACCEPTABLE" message, proceed to step 5. If not, replace the Controller Board.
5. Remove the short from J4-3 and J4-4 and short Controller Board connector positions J4-5 and J4-6 together. If the unit
displays a "SELECT A CYCLE" message, it is unlikely that the Controller Board is damaged.
6. If problems persist, leave the unit powered ON to allow internal components to warm up for a period of time (some
failures are temperature dependent). Then start any sterilization cycle and repeat steps 1 through 6.
7. To test the conductivity sensor, short the sensor posts in the reservoir using a long handle screwdriver. The measured
resistance across the unconnected sensor leads should be less than 1.0 ohm. If the reading is other than that the sensor is
likely damaged.
Replace the reservoir.