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0901082 Rev: D (08/08) 

Page 8 of 12 

PROBE OPERATION 

• 

With the detergent power “on”, the conductivity probe 
senses  detergent  concentration.  When  concentration 
drops  below  the  setpoint,  the  control  automatically 
turns on detergent feed. 

• 

Low and high concentration ranges allow easy setting 
on all types of water conditions. 

• 

When the detergent concentration is within 15% of the 
setpoint,  the  control  automatically  pulse  feeds  (3 
seconds  on  /  2  seconds  off)  to  prevent  over-use  of 
chemical. 

• 

An  “out  of  product”  alarm  will  automatically  sound  if 
the detergent setpoint is not reached in a specific time 
period. 

CONCENTRATION SETPOINT ADJUSTMENT 

(1)  With  low  range  selected,  slowly  adjust  the 

detergent  concentration  pot  clockwise  a  few 
degrees. Detergent will pulse feed, then stop. 

(2)  Using  a  chemical  titration  kit,  test  detergent 

concentration  of  the  wash  water.  Continue  to 
increase the pot until the desired setpoint. 

(3)  If at full clockwise position of concentration pot and 

wash water concentration is not strong enough, turn 
pot  back  full  counter-clockwise.  Switch  to  high 
range. 

(4)  Slowly  adjust  pot  clockwise  until  detergent  feed 

begins,  then  stops.  Using  chemical  titration  kit, 
continue  adjusting  pot  until  desired  concentration 
setpoint is reached. 

ALARM DELAY SETTING 

If  the  detergent  setpoint  is  not  achieved  within  the  time 
set on the alarm delay pot, the alarm will sound and the 
unit will continue to feed. If the detergent setpoint is still 
not reached within a second time frame (double the first) 
the alarm will stay on, and detergent feed will stop. 

(1)  Delay time settings are: 

Door 

1 to 64 seconds 

Conveyor  

1 to 128 seconds 

(2)  For  conveyor  type  dishwashers,  adjust  the  alarm 

delay to be slightly longer than the time it takes for 
the unit to achieve the setpoint with a fresh tank of 
water. For door type dishwashers, the alarm setting 
should be calibrated to 5 - 10 seconds less than the 
washcycle timing. 

(3)  Select low or high volume for the alarm. 

SLIDE LEFT TO ACTIVATE 

SLIDE RIGHT TO ACTIVATE 

SLIDE LEFT OR 

RIGHT TO ACTIVATE 

SLIDE LEFT TO ACTIVATE 

CLOCKWISE 

TO INCREASE 

DETERGENT 

CONCENTRATION 

CLOCKWISE 

TO INCREASE 

ALARM 

Summary of Contents for Knight Ultra Micro-Pro UMP 100 Series

Page 1: ...Page 1 of 12 0901082 Rev D 08 08 Ultra Micro Pro UMP 100 200 Series Instruction Manual...

Page 2: ...s Pollution degree 2 Installation category 2 Altitude 2000 m Humidity 50 to 80 Electrical supply 120 208 or 240 Vac 50 60 Hz Indoor use statement Temperature 5 C to 40 C Statement advising that mains...

Page 3: ...Page 3 of 12 0901082 Rev D 08 08...

Page 4: ...Low High Range Switch Used if operating in probe mode Selects concentration ranges Low High Audio Switch Sets the alarm volume On Off Rinse Limit Switch When on stops the rinse pump after 30 seconds...

Page 5: ...the pump s squeeze tube PRESSURE SWITCH PLUMBING optional Install pressure switch kit Thread the male end of the tee fitting into the rinse line on the dishwasher and connect the poly tubing from the...

Page 6: ...rd See wiring diagram on page 10 DETERGENT POWER SIGNAL A detergent power signal is required to activate the detergent probe sensing or probeless initial charge Detergent power can be jumpered from ma...

Page 7: ...of the rinse pump 2 Adjust as needed to achieve the best sheeting action RINSE DELAY SETTING This feature delays the operation of the rinse pump for a programmed time once the rinse power signal is re...

Page 8: ...wash water concentration is not strong enough turn pot back full counter clockwise Switch to high range 4 Slowly adjust pot clockwise until detergent feed begins then stops Using chemical titration k...

Page 9: ...he initial charge amount 3 For all other types of machines the initial charge amount will be dispensed each time a detergent signal is applied 4 Adjust the charge potentiometer clockwise for the amoun...

Page 10: ...0901082 Rev D 08 08 Page 10 of 12 WIRING DIAGRAM...

Page 11: ...Page 11 of 12 0901082 Rev D 08 08 ASSEMBLY DIAGRAM...

Page 12: ...inspection Bearings and pump seals or rubber and synthetic rubber parts such as O rings diaphragms squeeze tubing and gaskets are considered expendable and are not covered under warranty Warranty doe...

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