Idex Knight Ultra Micro-Pro UMP 100 Series User manual

Page 1 of 12 0901082 Rev: D (08/08)
Ultra Micro-Pro
UMP 100 / 200 Series
Instr ction Man al

0901082 Rev: D (08/08) Page 2 of 12
TABLE OF CONTENTS
Declaration of Conformity .....................................................................................3
Introduction ...........................................................................................................4
Circuit Board Diagram...........................................................................................4
Installation.............................................................................................................5
Plumbing...............................................................................................................5
Probe Installation ..................................................................................................6
Electrical ...............................................................................................................6
Rinse O eration....................................................................................................7
Probe O eration....................................................................................................8
Probeless O eration .............................................................................................9
Wiring Diagram ...................................................................................................10
Assembly Diagram..............................................................................................11
Warranty Information ..........................................................................................12
Knight Locations .................................................................................................12
EQUIPMENT RATINGS
This includes equi ment su ly, descri tion of I/O connections, duty cycle and o erating environmental conditions.
• Pollution degree 2;
• Installation category 2;
• Altitude 2000 m;
• Humidity 50% to 80%
• Electrical su ly 120, 208, or 240 Vac, 50/60 Hz;
• Indoor use statement;
• Tem erature 5°C to 40°C;
• Statement advising that mains su ly voltage fluctuations are not to exceed 10 ercent of the nominal su ly
voltage.
CAUTION: Wear protective clothing and eyewear when dispensing chemicals or
other materials. Observe safety handling instr ctions (MSDS) of chemical mfrs.
CAUTION: To avoid severe or fatal shock, always disconnect main power when
servicing the nit.
CAUTION: When installing any eq ipment, ens re that all national and local
safety, electrical, and pl mbing codes are met.

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INTRODUCTION
Ultra Micro-Pro UMP-Series warewash systems rovide the versatility of robe or robeless detergent control through
advanced micro rocessor design. With the ca ability of controlling u to two roducts, and the choice of liquid or dry
detergent, virtually any warewash a lication can be accommodated.
The UMP Series warewash control features sim licity and versatility.
SLIDE SWITCH SETTINGS
•
Probe/Probeless Switch: Allows you to select
o eration with or without a robe
• Door/Conveyor Switch: Sets alarm delay range for
robe mode. Sets initial charge timing range for
robeless mode.
• Low/High Range Switch: Used if o erating in robe
mode. Selects concentration ranges.
• Low/High Audio Switch: Sets the alarm volume.
• On/Off Rinse Limit Switch: When on, sto s the rinse
um after 30 seconds.
POTENTIOMETER SETTINGS
•
Concentration or Recharge Pot: In “ robe mode” sets
detergent concentration strength. In “ robeless mode”
sets the um time necessary to recharge the
detergent concentration.
• Alarm Delay or Initial Charge Pot: In “ robe mode”
sets the time before the alarm sounds if the robe
senses low detergent concentration. In “ robeless
mode” sets the um time necessary to initially
charge the detergent concentration.
• Rinse S eed Pot: Adjust the s eed at which the rinse
um runs.
• Rinse Delay Pot: Delays the rinse um from
0 to 14 seconds.
CONCENTRATION OR RECHARGE
ALARM DELAY OR INITIAL CHARGE
RINSE SPEED
RINSE DELAY

Page 5 of 12 0901082 Rev: D (08/08)
INSTALLATION
Mount the unit (using suitable hardware) with the
rovided bracket in the accessory kit. Try to kee the
unit within three feet from the final rinse line to avoid
long tubing runs.
CAUTION: Do not mount the unit in the direct ath of
steam. This can short circuit and ermanently damage
the unit. Mounting the unit on the side, on the back, or
on the vents of the dishwasher may cause thermal
overload and damage or hinder the erformance of the
unit.
Check all a licable lumbing and electrical codes
before roceeding with the installation. This will hel to
ensure that the system is installed in safe and suitable
manner. A wiring schematic of the dishwasher should
be used as reference for making electrical connections
— this is ty ically rovided by the dishwasher
manufacturer if one cannot be located on the machine
itself.
PLUMBING
RINSE PLUMBING
(1) Install the rovided 1/4" tube x 1/8" NPT injection
fitting into the side or bottom of the dishwasher
rinse line between the rinse solenoid valves and the
rinse jets. If necessary, drill a 11/32" hole and ta to
1/8" NPT. Use of a saddle clam may be desired on
co er rinse line for better su ort.
(2) Cut a suitable length of 1/4" OD oly tubing and
connect between the discharge (right) side of the
rinse um ’s squeeze tube and the injection fitting.
(3) Cut a suitable length of 1/4" OD oly tubing and
connect between the suction (left) side of the rinse
um ’s squeeze tube and the icku tube rovided.
Be sure to draw tubing through the end of the
icku tube.
(4) Hand-tighten the com ression nuts on both the
rinse fitting and icku tube. Plastic ties can be
used to cinch around the connections where the
oly tubing is inserted into the um ’s squeeze
tube.
PRESSURE SWITCH PLUMBING (optional)
Install ressure switch kit. Thread the male end of the
“tee” fitting into the rinse line on the dishwasher, and
connect the oly tubing from the rinse um into the end
o osite the male threads, using the checkvalve
rovided. Thread the ressure switch into the remaining
o ening on the tee, er endicular to the male threaded
end.
LIQUID DETERGENT PLUMBING
(1) Install the rovided bulkhead fitting through a wall
of the wash tank (above water level). If an existing
mounting hole cannot be located, use of a 7/8" hole
saw or unch may be desired.
(2) Cut a suitable length of 1/4" OD oly tubing and
connect between the discharge (right) side of the
detergent um ’s squeeze tube and the bulkhead
fitting.
(3) Cut a suitable length of 1/4" OD oly tubing and
connect between the suction (left) side of the
detergent um ’s squeeze tube and the icku
tube rovided. Be sure to draw tubing through the
end of the icku tube.
(4) Hand-tighten the com ression nuts on both the
bulkhead fitting and icku tube. Plastic ties can be
used to cinch around the connections where the
oly tubing is inserted into the um ’s squeeze
tube.
DRY DETERGENT PLUMBING
(1) A owder or solid ty e feeder (not rovided) should
be used for dis ensing dry detergent roducts.
Follow the instructions included with the detergent
feeder for installation, and recommended water
tem erature/ ressure.
(2) Cut a suitable length of 1/4" OD co er tubing (not
rovided) and connect between the in ut side of the
water solenoid and the water source. Maximum
recommended water tem erature is 140°F (60°C).
(3) Cut a suitable length of 1/4" OD co er tubing (not
rovided) and connect between the out ut of water
solenoid to a owder or solid detergent feeder.
(4) Carefully tighten the com ression nuts on the water
solenoid — over tightening may cause solenoid to
leak. Tighten connections to the water source and
detergent feeder as needed.

0901082 Rev: D (08/08) Page 6 of 12
PROBE INSTALLATION (if equi ed)
(1) Install the robe in the wash tank below the water
level. It should be away from incoming water
su lies, near the recirculating um intake, and 3
to 4 inches from corners, heating elements, or the
bottom of the tank. If an existing mounting hole
cannot be located, use of a 7/8" hole saw or unch
may be desired.
(2) Connect leads from the terminals on the robe to
the “ robe” terminals on the circuit board.
(3) For best results, use 18 AWG multi-stranded
co er wire for the robe connection. Avoid running
the wire near high voltage AC lines.
ELECTRICAL
Turn off all ower before wiring the control. Check
with a voltmeter to ensure ower is off.
MAIN POWER CONNECTION
One ste -down transformer is rovided with the UMP
control. Connect the high voltage side, through a switch
or circuit breaker in close roximity to the equi ment
and marked UMP, to any 115/208/230 VAC ower
source that is “on” when the dishmachine is “on” (i.e.
mains switch on dishmachine).
NOTE: The transformer rovides ower to both the
detergent and rinse circuits. The UMP will only o erate
detergent or rinse when electrically signaled.
To wire main ower connection:
(1) Check the voltage of the main ower source and
make sure that it matches one of the three available
in ut voltages (115/208/230 VAC) of the
transformer inside the Ultra Micro-Pro.
(2) Remove all ower from the dishwasher.
(3) Connect leads from the main ower source to the
a ro riate wires on the transformer.
* CAUTION: The UMP unit has high voltage connected
to the transformer. Always disconnect main ower when
servicing the unit.
REMOTE ALARM
A remote 3 - 28 VDC alarm may be wired to the “alarm”
terminals on the circuit board. See wiring diagram on
age 10.
DETERGENT POWER SIGNAL
A detergent ower signal is required to activate the
detergent robe sensing or robeless initial charge.
Detergent ower can be jum ered from main ower.
(1) Check the dishwasher for a ower source that is
active during the washcycle only (exam le: the
magnetic contactor that controls the wash um
motor) and verify voltage. The Ultra Micro-Pro
circuit board will acce t a detergent ower signal of
14 - 240 VAC.
(2) Remove all ower from the dishwasher.
(3) Connect leads from the detergent signal ower
source to the detergent signal terminals on the
circuit board.
RINSE POWER SIGNAL
In addition to running the rinse um , the rinse ower
signal also triggers the detergent “recharge” injection if
robeless mode is selected
(1) Check the dishwasher for a ower source that is
active during the rinse cycle only (exam le: the
rinse solenoid or rinse cycle light) and verify
voltage. The Ultra Micro-Pro circuit board will
acce t a signal of 14 - 240 VAC. If a direct signal
can’t be located on the dishwasher, a ressure
switch can be used to rovide a signal (see next
section below).
(2) Remove all ower from the dishwasher.
(3) Connect leads from the rinse signal source to the
rinse signal terminals on the circuit board.
PRESSURE SWITCH RINSE ACTIVATION
An o tional remote ressure switch kit is available for
a lications where a rinse ower signal can’t be located
on the dishwasher. The ressure switch is used to
rovide a rinse ower signal to the Ultra Micro-Pro’s
circuit board when the switch is activated by ressure in
the dishwasher’s rinse line. This is done by using ower
from the system’s transformer as the signal voltage
source, and sim ly letting the ressure switch make/
break the connection. To use a ressure switch:
(1) Remove all ower from the dishwasher and the
dis enser.
(2) Wire the ressure switch terminals as shown in the
wiring diagram on age 10.

Page 7 of 12 0901082 Rev: D (08/08)
RINSE OPERATION
The rinse um will o erate whenever the rinse ower
signal is a lied to the circuit board, whether directly
from the dishwasher, or by using a ressure switch. A
rinse delay feature and rinse limit feature maximize the
o erating ca abilities of the rinse um .
A rime button, located on the front cover, will allow the
rinse um to run at full s eed, regardless of the rinse
otentiometer setting. Main ower must be a lied to
the system to rime the um , a signal is not necessary.
RINSE SPEED SETTING
(1) Turn the rinse otentiometer clockwise to increase
s eed of the rinse um
(2) Adjust as needed to achieve the best sheeting
action.
RINSE DELAY SETTING
This feature delays the o eration of the rinse um for a
rogrammed time once the rinse ower signal is
received. This function is ty ically used to conserve
rinse agent injection on door-ty e dishwashers (using
with conveyor machines is not recommended). The
rinse delay range is 0 - 14 seconds.
(1) Turn the rinse delay otentiometer clockwise to
increase.
(2) Turning the setting to full minimum shuts off this
feature.
RINSE LIMIT SETTING
This feature will sto the rinse um after 30 seconds of
continuous o eration, conserving rinse agent on
dishmachines that fill through the rinse valve.
Slide switch to “rinse limit” to activate.
SLIDE LEFT TO ACTIVATE
CLOCKWISE
TO INCREASE
RINSE
SPEED
CLOCKWISE
TO INCREASE
RINSE
DELAY

0901082 Rev: D (08/08) Page 8 of 12
PROBE OPERATION
• With the detergent ower “on”, the conductivity robe
senses detergent concentration. When concentration
dro s below the set oint, the control automatically
turns on detergent feed.
• Low and high concentration ranges allow easy setting
on all ty es of water conditions.
• When the detergent concentration is within 15% of the
set oint, the control automatically ulse feeds (3
seconds on / 2 seconds off) to revent over-use of
chemical.
• An “out of roduct” alarm will automatically sound if
the detergent set oint is not reached in a s ecific time
eriod.
CONCENTRATION SETPOINT ADJUSTMENT
(1) With low range selected, slowly adjust the
detergent concentration ot clockwise a few
degrees. Detergent will ulse feed, then sto .
(2) Using a chemical titration kit, test detergent
concentration of the wash water. Continue to
increase the ot until the desired set oint.
(3) If at full clockwise osition of concentration ot and
wash water concentration is not strong enough, turn
ot back full counter-clockwise. Switch to high
range.
(4) Slowly adjust ot clockwise until detergent feed
begins, then sto s. Using chemical titration kit,
continue adjusting ot until desired concentration
set oint is reached.
ALARM DELAY SETTING
If the detergent set oint is not achieved within the time
set on the alarm delay ot, the alarm will sound and the
unit will continue to feed. If the detergent set oint is still
not reached within a second time frame (double the first)
the alarm will stay on, and detergent feed will sto .
(1) Delay time settings are:
Door 1 to 64 seconds
Conveyor 1 to 128 seconds
(2) For conveyor ty e dishwashers, adjust the alarm
delay to be slightly longer than the time it takes for
the unit to achieve the set oint with a fresh tank of
water. For door ty e 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

Page 9 of 12 0901082 Rev: D (08/08)
PROBELESS OPERATION
• Controls detergent concentration without a robe,
based on timed detergent feed.
• Initial charge time feeds detergent to the
concentration set oint when dishmachines are initially
filled.
• Recharge time feeds detergent to maintain detergent
set oint as rinse water dilutes the dishmachine.
• Door or conveyor switch selection o timizes
robeless o eration for different ty es of
dishwashers.
INITIAL CHARGE DETERGENT SETTINGS
(1) Select door or conveyor setting.
(2) For dishmachines that fill through the rinse valve, a
detergent signal is not necessary for initial charge if
the control is set to door. The control senses by the
rinse signal when the rinse has been on over 30
seconds and runs the detergent for the initial
charge amount.
(3) For all other ty es of machines, the initial charge
amount will be dis ensed each time a detergent
signal is a lied.
(4) Adjust the charge otentiometer clockwise for the
amount needed to initially charge the washtank with
detergent. The ranges are:
Door 1 to 64 seconds
Conveyor 1 to 128 seconds
RECHARGE DETERGENT SETTINGS
(1) Adjust the recharge otentiometer to the amount of
d e t e r g e n t n e e d e d f o r o n e r a c k .
The range is 0 – 10 seconds.
(2) With door selected, the recharge detergent amount
will be dis ensed one time when a rinse signal is
received.
(3) With conveyor selected, the recharge detergent
amount will be dis ensed after a 12 second
continuous rinse signal. It will continue to dis ense
every 12 seconds if the rinse signal remains on (i.e.
two racks in a conveyor train, two detergent
recharges).
SLIDE LEFT OR
RIGHT TO ACTIVATE
SLIDE RIGHT TO ACTIVATE
CLOCKWISE
TO INCREASE
CHARGE
CLOCKWISE
TO INCREASE
RECHARGE

0901082 Rev: D (08/08) Page 10 of 12
WIRING DIAGRAM

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ASSEMBLY DIAGRAM

0901082 Rev: D (08/08) Page 12 of 12
DISCLAIMER
Knight LLC does not acce t res onsibility for the mishandling, misuse, or non- erformance of the described items
when used for ur oses other than those s ecified in the instructions. For hazardous materials information consult
label, MSDS, or Knight LLC. Knight roducts are not for use in otentially ex losive environments. Any use of our
equi ment in such an environment is at the risk of the user, Knight does not acce t any liability in such
circumstances.
WARRANTY
All Knight controls and um systems are warranted against defects in material and workmanshi for a eriod of
ONE year. All electronic control boards have a TWO year warranty. Warranty a lies only to the re lacement or
re air of such arts when returned to factory with a Knight Return Authorization (KRA) number, freight re aid, and
found to be defective u on factory authorized ins ection. Bearings and um seals or rubber and synthetic rubber
arts such as “O” rings, dia hragms, squeeze tubing, and gaskets are considered ex endable and are not covered
under warranty. Warranty does not cover liability resulting from erformance of this equi ment nor the labor to
re lace this equi ment. Product abuse or misuse voids warranty.
FOOTNOTE
The information and s ecifications included in this ublication were in effect at the time of a roval for rinting.
Knight, LLC reserves the right, however, to discontinue or change s ecifications or design at any time without notice
and without incurring any obligation whatsoever.
Knight Headq arters
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KNIGHT LLC,
KNIGHT LLC, KNIGHT LLC,
KNIGHT LLC, A Unit of IDEX Co po ation (www.knightequip.com)