Instruction Manual Pneumatic tank contents gauge Unitel # 72513

Instruction Manual Pneumatic tank contents gauge Unitel # 72513
Instruction Manual
Pneumatic tank contents gauge
Unitel
# 72513
Distributed by
Centre Tank Services Ltd.
Unit 41, Minworth Industrial Park, Forge Lane, Minworth, Sutton
Coldfield, West Midlands B76 1AH
Telephone: 0121 351 4445 – Fax: 0121 351 4442
Email: [email protected] Website: www.centretank.com
Read manual before use!
Observe all safety information!
Keep manual for future use!
08.2008 1
854.001.0333
Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
About this instruction manual...................................................................................3
1.1
Explanation of symbols and typeface...........................................................3
Safety .......................................................................................................................3
2.1
Intended use .................................................................................................3
2.2
Predictable incorrect application ..................................................................4
2.3
Safe handling................................................................................................4
2.4
Modifications to the product..........................................................................4
2.5
Use of spare parts and accessories .............................................................4
2.6
Liability information.......................................................................................4
Product description ..................................................................................................5
Specifications...........................................................................................................6
Installation and commissioning................................................................................7
5.1
Installing the device ......................................................................................7
5.2
Adjusting the measuring range and the Zero correction ..............................7
5.3
Installing capillary line...................................................................................8
Operation .................................................................................................................9
Maintenance ..........................................................................................................10
Troubleshooting .....................................................................................................10
Spare parts and accessories .................................................................................11
Warranty ................................................................................................................11
Copyright................................................................................................................11
Customer satisfaction ............................................................................................11
Addresses ..............................................................................................................12
Appendix ................................................................................................................12
14.1 Determining the measurement range.........................................................12
Unitel
About this instruction manual
1
About this instruction manual
This instruction manual is part of the product.
Read this manual before using the product.
Keep this manual during the entire service life of the product
and always have it readily available for reference.
Always hand this manual over to future owners or users of the
product.
1.1
Explanation of symbols and typeface
Symbol
Meaning
Prerequisite for an activity
Activity consisting of a single step
1.
Activity consisting of several steps
Result of an activity
•
Bulleted list
Text
Indication on a display
Highlighting
Highlighting
2 Safety
2.1
Intended use
The pneumatic tank contents gauge Unitel is exclusively suitable for
the level measurement of the following liquids:
•
Fuel oil EL according to DIN 51603-1
•
Diesel fuel according to EN 590
•
Fatty acid methyl ester (FAME) as a fuel oil according to
EN 14213
•
Fatty acid methyl ester (FAME) as biodiesel according to
EN 14214
•
Inflammable liquids of danger class AIII and non-inflammable liquids which meet the following requirements:
•
The fumes of the liquid do not attack plastics (PA, PS, PE)
or Cu-, Zn- and Sn-alloys or elastomers.
•
The liquid is not classified as hazardous class AI, AII or B.
•
Kinematic viscosity < 300 mm²/s.
Any use other than the use explicitly stated in this instruction manual
is not permitted.
Unitel
3
Safety
2.2
Predictable incorrect application
The pneumatic tank contents gauge Unitel must never be used in the
following:
•
Level measurement of liquids other than those listed above.
•
Hazardous areas (ex)
If the device is operated in hazardous areas, sparks may cause
deflagrations, fires or explosions
2.3
Safe handling
This product represents state-of-the-art technology and is manufactured in accordance with the pertinent safety regulations. Each unit is
subjected to a function and safety test prior to despatch.
Operate the product only when it is in perfect condition. Always
observe the instruction manual, all pertinent local and national
directives and guidelines as well as health and safety regulations and directives regarding the prevention of accidents.
2.4
Modifications to the product
Changes or modifications made to the product by unauthorised persons may lead to malfunctions and are prohibited for safety reasons.
2.5
Use of spare parts and accessories
Use of unsuitable spare parts and accessories may cause damage
to the product.
Use only the manufacturer’s genuine spare parts and accessories (refer to chapter 9, page 11).
2.6
Liability information
The manufacturer shall not be liable for any direct or consequential
damage resulting from failure to observe the technical instructions,
guidelines and recommendations.
The manufacturer and the sales company shall not be liable for costs
or damages incurred by the user or by third parties in the use or application of this device, particularly in case of improper use of the device, misuse or malfunction of the connection, malfunction of the device or of connected devices. The manufacturer or the sales company shall not be liable for damages resulting from any use other
than the use explicitly stated in this instruction manual.
The manufacturer shall not be liable for misprints.
4
Unitel
Product description
3
Product description
a
Reference
pointer
b
Capillary connection
c
Adjustment
scale for measuring range
d
Adjustment
screw for
measuring
range
e
Adjustment
screw for Zero
point correction
f
Pump plunger
Fig. 1: Front view Unitel
1
Cable gland PG9
2
Screw-in tank adapter G½-G1
3
O ring Ø 30 x 3 mm
4
O ring Ø 18 x 2,5 mm
5
Stand pipe
6
Conical washer
7
Balance chamber
Fig. 2: Tubing kit
Unitel measures the hydrostatic liquid pressure at the tank bottom.
The pressure varies according to liquid height and specific gravity of
Unitel
5
Specifications
the medium to be measured. The pressure is measured approx.
20 mm above the tank bottom and displayed on the gauge dial.
When operating the pump of the Unitel a pneumatic pressure is built
up in the capillary measuring line until that pressure is equal to the liquid head pressure at the bottom of the tank. The pressure created
by the pump has displaced the liquid in the capillary tubing inside the
tank and the air bubbles out of the end of the standpipe in the tank.
The pointer has reached its highest indication point and stops at that
level.
Unitel enables the user to obtain a relativley accurate consumption
control thereby allowing a timely reordering of fuel. The driver of the
oil delivery vehicle can use Unitel to check whether the tank can accept the ordered quantitiy of fuel.
4
Specifications
Table 1: Specifications
Parameter
Value
General
Dimensions housing (W x H x D)
145 x 135 x 65 mm
Weight
400 g
Housing material
Impact resistant plastic
Remote indication
Up to 50 m
Measuring range
Fully adjustable: 900-3000 mm tank height for
measurement of fuel oil EL or diesel fuel with
an average density of 840 kg/m³ at +15 °C
Mechanism
Linear capsule type, overpressure protected
Accuracy
± 3 % of full scale value
Indication
Standard: 0-100 %-liquid height for rectangular and horizontal cylindrical tanks
For additional slide-in scales with indication in
litres for standardised tanks as well as special
slide-in scales see chapter 9, page 11.
Operating temperature range
Ambient
6
-5 °C to +55 °C
Unitel
Installation and commissioning
Parameter
Value
Tubing kit materials
5
5.1
Stand pipe
PVC, Ø 4 x 1 mm
Conical washer
POM
Balance chamber
Stainless steel
O rings
NBR
Screw-in tank
adapter
PA6
Installation and commissioning
Installing the device
Protect Unitel from rain and direct sunshine.
1
Drive screw into wall.
2
Hang housing onto
screw.
3
Fix housing to wall with
screw through lower fixing lug.
Fig. 3: Wall mounting
5.2
Adjusting the measuring range and the Zero correction
The accuracy of the gauge measurement is dependent on the exact
adjustment of the measuring range and the Zero correction.
Unitel
7
Installation and commissioning
1.
2.
3.
4.
5.
6.
5.3
Determine measuring range:
Fuel oil EL and diesel fuel: Measuring range = Tank height.
Other liquids: See table 4, page 12.
Remove front glass (a).
Adjust measuring range accurately (b).
Tap housing gently on the side.
Adjust Zero correction (c): Set pointer to “0” by turning screw either to the left or right by maximum 1 full turn.
If applicable, insert slide-in-scale and then refit front glass.
Installing capillary line
1
Screw-in tank adapter
2
Capillary tubing
3
Condensate trap
4
Unitel
5
Stand pipe
6
Balance chamber
Fig. 4: Installing capillary line
8
Unitel
Operation
If no separate gauge connection socket is provided on the tank, it is
possible to combine a number of capillary lines by connecting a Euroflex 3 combination fitting to a G1"-socket on the tank.
If required, the capillary measuring line can be extended with PE
capillary tubing. The maximum distance between tank adapter and
Unitel must not exceed 50 m. Connect standpipe to capillary line, using for instance a hose connector.
1. The lower end of the capillary tube should end approx. 2 cm
above the lowest point of the tank bottom. Tighten cable gland
in order to fix the standpipe in the tank adapter.
2. Screw tank adapter into a vacant boss in the top of the tank.
3. Install capillary line with a steady slope towards the tank, avoiding any kinks or possible water traps in the line.
4. Install a condensate trap if Unitel is mounted below the max. liquid level in the tank or in a place where condensate may collect.
5. Push connector onto capillary tube.
6.
7.
6
1
Hollow rivet
2
Grommet seal
3
Washer
4
Connector
5
Capillary standpipe
6
Pipe
Insert capillary line into connector and push in to the stop.
Tighten pressure screw gently.
Operation
Unitel provides a semi-permanent indication. The built-in pump closes off the measuring line when it reaches the end of its travel, the
pointer stays temporarily at its last reading and then drops back very
slowly. As a result of this the gauge mechanism is protected by an
oil-stop air cushion.
Do not operate gauge during a tank filling operation as the gauge will
not give a stable reading.
1. Pull out pump plunger to its stop and then release.
Unitel
9
Maintenance
2. Repeat this process until the indication is stable.
3. Read tank contents on the dial of the gauge.
If the capillary measuring line has been installed absolutely airtight
the pointer of the gauge will continue to show the last reading over a
long period of time. In order to obtain an accurate up-to-date reading
we recommend that you operate the pump everytime before a reading is taken.
The reference pointer can be adjusted manually. When set to the latest reading it serves for consumption control purposes.
7
Maintenance
Table 2: Maintenance intervals
When
8
Activity
Condensate trap contains water.
Empty condensate trap.
At time of tank servicing or tank cleaning.
Check Unitel for correct function and,
if necessary, have the instrument readjusted.
Troubleshooting
Repair work may only be carried out by qualified, specially trained
personnel.
Table 3: Troubleshooting
Problem
Possible reason
Pointer does not move
when pump is operated
or drops back again
very quickly.
Connections are not
airtight or the capillary
lines are damged and
leaking.
Tighten connections and
check capillary lines for air
tightness.
Filling process.
Take measurement after the
tank filling process.
Capillary line is either
blocked or has a kink
in it.
Check that capillary line has
no kinks in it and clear any
blockage.
Pointer goes beyond
the 100 % mark or
pump does not return
fully to its stop.
Install condensate trap.
Condensate trap full.
10
Remedy
Empty condensate trap.
Unitel
Spare parts and accessories
Problem
Possible reason
Wrong indication.
Other malfunction.
9
Remedy
The wrong measuring
range has been adjusted.
Check tank dimensions and
correct measuring range, see
chapter 5.2, page 7.
Measuring range adjusted wrongly.
See above.
Zero correction not
correctly set.
Reset Zero correction, see
chapter 5.2, page 7.
–
Return the device to the manufacturer.
Spare parts and accessories
Part
Part No.
Combination fitting Euroflex 3 with capillary tubing 2,15 m
Combination fitting Euroflex 3 with capillary tubing 3,15 m
20160
20164
Montagefix-extension set (10 m PE-capillary tubing 4 x 1 mm with capillary
extension piece)
20132
Additional slide-in scales in litres for standardised tanks
725...
When ordering, please specify the shape and capacity of tank.
Special slide-in scales for tanks of any shape and dimension
72599
When ordering, please specify exact tank shape, size and capacity.
10 Warranty
The manufacturer’s warranty for this product is 24 months from date
of purchase. This warranty applies to all countries in which this product is sold by the manufacturer or its authorised representatives.
11 Copyright
The manufacturer holds the copyright to this manual. This manual
may only be reprinted, translated, copied in part or in whole with the
prior written consent of the manufacturer.
We reserve the right to modify any specifications or alter any illustrations in this manual without prior notice.
12 Customer satisfaction
Customer satisfaction is our prime objective. Please get in touch with
us if you have any questions, suggestions or problems regarding
your product.
Unitel
11
Addresses
13 Addresses
The addresses of our worldwide representatives can be found on the
Internet at www.afriso.com.
14 Appendix
14.1
Determining the measurement range
Table 4: Determining the measurement range
Tank
height
[mm]
800
850
900
950
1000
1100
1200
1250
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
12
Specific gravity (density)
Fuel oil EL/diesel fuel
of liquid to be measured [kg/m³]
700 720 740 760 780 800 820 840 860 880 900 920 940 960
0,90 0,91
0,91 0,93 0,95 0,97
0,90 0,92 0,94 0,96 0,99 1,01 1,03
0,91 0,93 0,95 0,97 1,00 1,02 1,04 1,06 1,08
0,90 0,93 0,95 0,98 1,00 1,02 1,05 1,07 1,10 1,12 1,14
0,92 0,94 0,97 1,00 1,02 1,05 1,07 1,10 1,13 1,15 1,18 1,20 1,23 1,26
1,00 1,03 1,06 1,08 1,11 1,14 1,17 1,20 1,23 1,26 1,29 1,31 1,34 1,37
1,04 1,07 1,10 1,13 1,16 1,19 1,22 1,25 1,28 1,31 1,34 1,37 1,40 1,43
1,08 1,11 1,14 1,18 1,21 1,24 1,27 1,30 1,33 1,36 1,39 1,42 1,45 1,48
1,17 1,20 1,23 1,27 1,30 1,33 1,37 1,40 1,43 1,47 1,50 1,53 1,57 1,60
1,25 1,28 1,32 1,36 1,39 1,43 1,46 1,50 1,54 1,57 1,60 1,64 1,68 1,71
1,33 1,37 1,41 1,45 1,48 1,52 1,56 1,60 1,64 1,67 1,70 1,75 1,80 1,83
1,42 1,46 1,50 1,54 1,58 1,62 1,65 1,70 1,75 1,78 1,82 1,85 1,90 1,95
1,50 1,54 1,59 1,63 1,67 1,70 1,75 1,80 1,85 1,89 1,93 1,95 2,00 2,05
1,58 1,63 1,67 1,72 1,75 1,80 1,85 1,90 1,95 2,00 2,08 2,12 2,10 2,15
1,67 1,70 1,75 1,80 1,85 1,90 1,95 2,00 2,05 2,10 2,15 2,20 2,25 2,30
1,75 1,80 1,85 1,90 1,95 2,00 2,05 2,10 2,15 2,20 2,25 2,30 2,35 2,40
1,85 1,90 1,95 2,00 2,05 2,10 2,15 2,20 2,25 2,30 2,35 2,40 2,45 2,50
1,95 2,00 2,05 2,10 2,15 2,20 2,25 2,30 2,35 2,40 2,45 2,50 2,55 2,60
2,00 2,05 2,10 2,15 2,20 2,30 2,35 2,40 2,45 2,50 2,55 2,60 2,70 2,75
2,10 2,15 2,20 2,25 2,30 2,40 2,45 2,50 2,55 2,60 2,70 2,75 2,80 2,85
2,20 2,25 2,30 2,35 2,40 2,50 2,55 2,60 2,65 2,70 2,80 2,85 2,90 2,95
2,25 2,30 2,40 2,45 2,50 2,55 2,65 2,70 2,75 2,85 2,90 2,95 3,00
2,35 2,40 2,45 2,55 2,60 2,65 2,75 2,80 2,85 2,95 3,00
2,45 2,50 2,55 2,60 2,70 2,75 2,85 2,90 2,95
2,50 2,55 2,65 2,70 2,80 2,85 2,95 3,00
2,60 2,65 2,75 2,80 2,90 2,95
2,65 2,75 2,80 2,90 2,95
2,75 2,85 2,90 3,00
2,85 2,90 3,00
2,90 3,00
3,00
980
0,93
0,99
1,05
1,11
1,17
1,28
1,40
1,46
1,52
1,63
1,75
1,85
1,98
2,10
2,20
2,35
2,45
2,55
2,65
2,80
2,90
3,00
1000
0,95
1,01
1,07
1,13
1,19
1,31
1,43
1,50
1,55
1,65
1,79
1,90
2,00
2,15
2,25
2,40
2,50
2,60
2,70
2,85
3,00
Unitel
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