ACO Haustechnik 3300.11.50 User manual

Tel. [phone]
Fax [phone]
1
ACO Haustechnik
Service-Line
3300.11.50
03.2010 Edition
Installation and operating manual
GREASE LEVEL CONTROL - Measuring device for grease layer thickness -
Please read through this manual carefully and
completely prior to commissioning this appli-
ance.
Observe and comply with the mentioned safety
notes!
GREASE-LEVEL-CONTROLLER
DANGER

Tel. [phone]
Fax [phone]
2Service-Line
Contents
1. Notes on manual ..................................................................................................................3
2. Basic safety notes and warnings ....................................................................................3
3. Product description
3.1 Scope of supply .............................................................................................................................4
3.2 Technical data ................................................................................................................................4
3.3 Description ....................................................................................................................................4
3.4 Correct intended use.......................................................................................................................5
4. Assembly
4.1 Disassembly of appliance.................................................................................................................5
4.2 Preparations at grease separator......................................................................................................6
4.3 Assembly of appliance in the grease separator...................................................................................6
5. Commissioning ......................................................................................................................8
6. Operation
6.1 Function.........................................................................................................................................9
6.2 Description of front wall of evaluation device.................................................................................... 10
6.3 Condition description: half level signal = 50 % of max. grease storage capacity...................................10
6.4 Condition description: full level signal = 80 % of max. grease storage capacity................................... 10
6.5 Possible malfunctions ................................................................................................................... 11
7. Servicing .................................................................................................................................11
8. Spare parts ............................................................................................................................11

Tel. [phone]
Fax [phone]
3Service-Line
ACO Haustechnik
1. Notes on manual
2. Basic safety notes and warnings
In the case of long connection lengths, the
setting of the potentiometer may change due
to the capacitive load of the electrode input.
Therefore, it may be advisable to have the set-
ting checked after a change of cable length by
a qualified contractor (notes on chapter 5).
General
Please read through the notes mentioned below and in the following chapters prior to commissioning! The symbols
used in the manual are to point to safety risks.
The symbol used cannot replace the text of the safety note. Therefore, the text must always be read completely!
Symbol Description
Texts with this symbol point to dangerous situations which could lead to
death or severe injuries in case of non-observance of directions given.
Texts with this symbol point to dangerous situations which could lead to
light or severe injuries in case of non-observance of directions given.
Texts with this symbol point to situations which could cause faults during
operation of the appliance in case of non-observance of directions given.
The product may only be applied and operated
in accordance with its intended use, as descri-
bed in this manual (also refer to chapter 3.4).
The electrical connection must be carried out
by a qualified contractor as per the pertinent
VDE regulations.
The appliance may not be altered or subjected
to other modifications.
• The assembly or maintenance works may
only be carried out by trained staff mem-
bers, authorised for this work thanks to their
education.
• Assembly and service works may only be
carried out in dead-voltage condition.
The terminal can be damaged by incorrect
bolting torques at the connecting terminals or
by inappropriate tools by what insulation or
contact making is jammed. Cables which were
improperly connected can disconnect during
operation and present a considerable safety
risk. By transfer resistance at clamp connec-
tions, an increased heat build-up is generated
which could cause a fire. Incorrectly wired con-
nections may damage electrical components
and cause other damages (notes on chapter 5) .
Notes, safety notes and warnings
DANGER
CAUTION
NOTICE
DANGER
DANGER
DANGER
DANGER
DANGER
NOTICE

Tel. [phone]
Fax [phone]
4Service-Line
3. Product description
3.2 Technical data
Designation Description
Operating voltage 230VAC/5 VA max.
2 x relay Change-over contact for Ohm resistive load
Load NC connection 230V AC / 5A
Load NO connection 230V AC /2 A
Fault clearance NC connection by means of varistor VZ 05/390V
Consumption approx. 12W
Dimensions Type -230V (15 65 46) 100 x 100 x 60 mm
Supplied in plastic housing, with ready to plug-in connecting cable (3 m)
Impedance switch-point 15-80 kOhm, adjustable via individual potentiometers
Measurement voltage max. 5 Vss
Measurement current < 250µA
3.3 Description
General
In the measuring stick, four heated electrodes (sensors) are mounted which project into the medium in accordance with
required switch-point (see also chapter 6). A fifth electrode serves as reference electrode.
Depending on water contact, the filling level is shown by four green LEDs L1 to L4. As grease layer thickness progres-
ses, the LEDs go out top down. When reaching 50 % of max. grease layer, 2 green LEDs are still flashing and when
reaching > 80 %, only 1 red LED is still lighting. Emptying of the separator must be arranged.
Two relays with change-over contact activate the aggregates (signals).
The NC connection can be loaded with 230V/5A AC and is dejammed with a varistor. The NO connection is loadable up
to 230V/2A.
In the housing is a 230V AC mains adapter and a control unit with LEDs to display filling level as well as two buttons for
manual switching-on of relays.
Delays in switching behaviour may result from sensor surfaces coated by grease, dissolving only in the course of several
minutes and admitting a proper test reading. In the case of indication error of the sensor, the cleanliness of the sensor
heads must be checked.
Operators whose plants do not possess of an automatic cleaning system are to check the cleanliness of the sensors
during each disposal and are to clean the sensor heads, if applicable.
3.1 Scope of supply
Single components
1 Measuring stick with heated
electrodes (sensors)
2 Evaluation device with ready to
plug-in connecting cable - 3 m
long
3 Screw joint with half-shell
4 Sealing and counter nut (not
depicted)
5 Installation and operating ma-
nual
Appliance
132
Product description
GREASE-LEVEL-CONTROLLER

Tel. [phone]
Fax [phone]
5Service-Line
ACO Haustechnik
4. Assembly
3.4 Correct intended use
This device for measuring grease layer thickness is intended for installation in ACO grease separator plants as per
DIN EN 1825.
It displays 50 % and > 80 % of max. grease layer thickness in the grease separator.
A different use of the device is not permitted!
4.1 Disassembly of appliance
Step 2
> Remove evaluation device and gripper clamps from
measuring stick.
Step 1
> Loosen spigot nut of angle plug and remove from
measuring stick.
Evaluation device
Gripper clamps
Measuring stick
Spigot nut
Measuring stick
(not depicted)
Angle plug
Step 3
> Loosen bolts of gripper clamp.
> Take half-shell out of screw joint.
> Remove screw joint from the measuring stick.
Half-shell
Bolts
Gripper clamp
Measuring stick
(not depicted)
Screw joint
Product description and assembly

Tel. [phone]
Fax [phone]
6Service-Line
4.2 Preparations at grease separator
Step 1
> Take the measuring stick in the separator through
the maintenance opening and bring it to the outside
again through the bore (the part containing the
sensors remains in the separator).
Bore
Sensors
Measuring stick
Maintenance opening
Assembly
4.3 Assembly of appliance at the grease separator
With assembly opening *
> Dismantle dummy plug with sealing and counter-nut.
*ACO grease separators are generally supplied
with assembly opening for measuring device of
grease layer thickness.
Counter-nut
Sealing
Bore
Dummy plug
Grease separa-
tor housing
Maintenance opening
In the case of retro-fit
Ø 41

M 40 x 1,5
> Make the bore or the thread respectively.
Position of bore X as per fig. A!
Deburr bore and cutting edges!
Fig. A
X
Maintenance opening
Inspection window
HP rinsing head
Separator from stainless
steel or plastic
Separators from
plastic
NOTICE
CAUTION

Tel. [phone]
Fax [phone]
7Service-Line
ACO Haustechnik
Step 2
> Pull the sealing over the measuring stick.
> Push the screw joint over the measuring stick.
Sealing
Measuring stick
Screw joint
Step 3
> Push the sealing and the screw joint through the
bore up to the dead stop.
> Push the counter nut over the measuring stick, turn
it to the thread neck of screw joint and firmly tighten
up the connection.
Sealing
Measuring stick
Counter nut
Screw joint
Step 4
Table A
Grease separator Nominal size Groove
Shape NS no.
oval 1 - 4 1
oval 5 - 10 2
round 2 - 4 2
round 7 - 10 2
round 15 + 20 3

In the case of separators with high-pressure
(HP) internal cleaning (fig A), sensors (1) point
towards HP Orbital cleaning head (2) and with
separators without HP internal cleaning (fig. B),
towards a maintenance opening (2) - Reason:
effective sensor cleaning.
> Depending on grease separator type, adjust the
measuring stick by setting relevant groove (see table
A) to zero water level height (= static water level,
water reaches up to pipe bottom of outlet or overflow
edge).
Zero water level
Groove 3
Groove 2
Groove 1
1
1
1
32
Step 5
> Reinsert the half-shell into the screw joint.
> Retighten the bolts of the gripper clamp.
Half-shell
Bolts
Gripper clamp
Step 6
> Click the evaluation device or the gripper clamps
again to the measuring stick.
Evaluation device
Gripper clamps
Measuring stick
Assembly
Fig. AFig B
NOTICE

Tel. [phone]
Fax [phone]
8Service-Line
Assembly and commissioning
Step 7
> Put the angle plug on the measuring stick and tigh-
ten the spigot nut again.
Spigot nut
Measuring stick
(not depicted)
Angle plug
5. Commissioning
Description
The electrical connection must be carried out
by a qualified contractor in accordance with
the pertinent VDE regulations.
• Operation is permitted only with 230 V AC
voltage.
• The mains voltage connection is protected
against excess voltage by a varistor 390 V.
• Fuse protection of the appliance must be
carried out by an external fuse. Observe
operator protection! Error current protective
circuit!
> Put the safety plug of the plug-in evaluation device
into the socket with earth contact mounted in situ.
AC230VPhase1
AC230VNeutral wire2
PE3
Relay1COM4
-X1
Relay1NC connection5
Relay1NO connection6
Relay2COM7
Relay2NC connection8
Relay2NO connection9
9
-X2
50%
Half level signal
8 7 6
-X2
80%
Full level signal
5 4 L1
-Connection
230VAC
PE N
Grease Level Control
The appliance is not suitable for use in po-
tentially explosive atmospheres. The user has
to make sure by adequate measures (e. g.
earthing of metal containers) that no hazar-
dous touch voltage is able to develop in the
medium.
GREASE-LEVEL-CONTROLLER
Connection
NOTICE
DANGER
DANGER

Tel. [phone]
Fax [phone]
9Service-Line
ACO Haustechnik
Description
The NC / NO connections (2 relays) with potential-free
change-over contacts activate signals (ZLT = central
technical supervision). The NC connection can be loaded
with 230V/5A AC and is dejammed with a varistor. The
NO connection can be loaded up to 230V/2A.
Use a cable 7 x 0.5 mm2as connecting cable.
> Please take the terminal connections from the
connecting diagram depicted on page 8.
Signals:
•Half level signal = 50 % grease storage capacity
•Full level signal = 80 % grease storage capacity
Fuse protection of the load circuit must be car-
ried out externally via a fuse, if required (max.
5A NC connection, 2A NO connection). For
switching of higher currents, relevant switching
elements have to be used.
When closing the evaluation device cover, pay
attention that jack and and plug intertwine
correctly!
Commissioning and operation
Jacks Plug
6. Operation
Description
For more detailed description of conditions in
the separator (at the sensors) and of displays
(signals) at the evaluation device, refer to next
page.
> Corresponding to water contact, the filling level is
displayed by four green LED’s L1 to L4 at the evalu-
ation device. With > 80 % of max. storage capacity,
the L1 lights up red.
Sensors
Evaluation device
6.1 Function
GREASE-LEVEL-CONTROLLER
NOTICE
NOTICE

Tel. [phone]
Fax [phone]
10Service-Line
Operation
6.2 Description of evaluation device front wall
Description
Table A: Possible displays
Display Lights Explanation
Water Grease Air
off green red exists exists exists
LED 4 

LED 3 

LED 2 

LED 1 

Table B:
Button Description
Test button 1 Output relay 1 is switched, half level signal can be
checked at ZLT (central technical supervision).
Test button 2 Output relay 2 is switched, full level signal can be
checked at ZLT (central technical supervision).
LED 4
LED 3
LED 2
LED 1
Test button H
Test button L
6.3 Condition description: Half level signal = 50 % of max. grease storage capacity
Condition in separator Evaluation at evaluation device
Table C: Half level signal=50% max. grease storage cap.
Display Lights Sensors
Water Grease
off green red exists exists
LED 4 
LED 3 
LED 2 
LED 1 
By pressing test button 1, this condition
can be simulated and tested at the ZLT
prior to reaching the condition.
The 2 upper sensors are covered with grease
50 % of max. grease layer
Sensors
6.4 Condition description: Full level signal = 80 % of max. grease storage capacity
Condition in separator Evaluation at evaluation device
Table D: Full level signal=80% max. grease storage cap.
Display Lights Sensors
Water Grease
off green red exists exists
LED 4 
LED 3 
LED 2 
LED 1 
By pressing test button 2, this condition
can be simulated and tested at the ZLT
prior to reaching the condition.
The 4 upper sensors are covered with grease.
>80 % of max. grease layer
Sensors
GREASE-LEVEL-CONTROLLER
NOTICE
NOTICE

Tel. [phone]
Fax [phone]
11Service-Line
ACO Haustechnik
6.5 Possible malfunctions
Operators whose plants do not possess of an au-
tomatic cleaning system are to check the cleanli-
ness of the sensors during each disposal and are
to clean the sensor heads, if applicable.
Risk of scalding: The sensors are heated and
reach an operating temperature of approx.
65-75°C. After disconnecting it from the mains
voltage, the device may still be hot for several
minutes.
In case of need, adequate protective measures
must be taken.
7. Servicing
8. Spare parts
Setting of switching points Switching manner
The switching points are pre-set at our works.
Depending on conductivity of water, the switching point
is adjusted at the trim-pot. Generally, it is sufficient
for most applications with clean tap water to leave the
potentiometers in the most sensitive setting (left stop),
corresponding to a switching point of approx. 12µS.
> If required, sensitivity for each electrode can be se-
parately adjusted. When turning against the clockwise
direction, the electronics become more insensitive
leading to better results with wastewater.
> Generally, all potentiometers should be in the same
position. Only in the case of very different distances
of electrodes to the reference electrode or in the
case of long connection lines it is reasonable to
adjust sensitivity in different ways. Following chan-
ging the cable connecting length, the setting must be
checked.
Delays in switching behaviour may result from
sensor surfaces coated by grease, dissolving only
in the course of several minutes and admitting
a proper test reading. In the case of indication
error of the sensor, the cleanliness of the sensor
heads must be checked.
Risk of scalding: The sensors are heated and
reach an operating temperature of approx.
65-75°C. After disconnecting it from the mains
voltage, the device may still be hot for several
minutes.
In case of need, adequate protective measures
must be taken.
If during operation situations develop which are not
sufficiently described, please contact: ACO -Service:
Telefon [phone] - 819-444
Fax [phone] - 819-367
E-Mail [email protected]
Questions
If you have questions of any kind which are not suffici-
ently described, please contact: ACO -Service:
Telefon [phone] - 819-444
Fax [phone] - 819-367
E-Mail [email protected]
For spare parts, please contact: ACO -Service:
Telefon [phone] - 819-444
Fax [phone] - 819-367
E-Mail [email protected]
Operation, servicing and spare parts
NOTICE DANGER
DANGER
NOTICE

The ACO Group. A strong family you can build on.
ACO Passavant GmbH
Im Gewerbepark 11c
36457 Stadtlengsfeld
Tel. ++49 (0) 36965 819–0
Fax ++49 (0) 36965 819–361
www.aco-haustechnik.de
www.aco.com
ACO Haustechnik
Installation and Operating Manual
As per: 03.2010
Origin: German Manual
Art. no.: 3300.11.50
HT 869 ●As per 03/2010 ●LTC ●Subject no. 3300.11.50
Origin: German manual l Subject to technical alterations!