Dover OPW 8800E User manual

Installation Manual
OPW Fluid Transfer Group Europe
B.V.
Rack Monitor 8800E / 8801E
Version
B.1
Date 24 August 2016

Rack Monitor 8800E/8801E
Document: Installation Manual
Date: 24 August 2016
Version: B.1
Page 2 of 29 Document: H71342
Disclaimer
In this document an installation manual is presented of the OPW Rack Monitor 8800E/8801E. It is important
that the end user (in many cases the operator) of the OPW Rack Monitor 8800E/8801E has an adult age, is
skilled, reads and understands this manual (and therefore has knowledge of the English language),
otherwise it is not recommended to use the OPW Rack Monitor 8800E/8801E.
OPW Fluid Transfer Group Europe BV guarantees that this product is adequate for the stated use in
chapter 1 and is in accordance with the Directive(s) stated in the declaration of conformity in this manual.
OPW Fluid Transfer Group Europe BV cannot be held responsible for incorrect use of the RACK
MONITOR 8800E/8801E. The Rack Monitor 8800E/8801E is for the use of monitoring of loading of tank
trucks with the application and parameters stated in chapter 1 of this manual.
In case this OPW Rack Monitor 8800E/8801E is used in another location then mentioned in the initial
quotation or is abused, all guarantees will be declined.
This installation manual is a part of the supplied product and must at all times accompany the Rack Monitor
8800E/8801E, when it is relocated or sold to a third party. All pages of this manual should be present, in
accordance to the table of contents. If not, please contact the OPW Fluid Transfer Group Europe BV.
© COPYRIGHT 2007. The design, drawings and documentation are the exclusive property of OPW Fluid
Transfer Group Europe BV. It is submitted on the condition that the designs contained therein are held
confidential and is subject to return on demand.
Apart from exceptions provided by the law, nothing from this publication may be duplicated and/or published
by means of photography, microfilm, storage in computer files or otherwise, which also applies to full or
partial processing, without the written consent of OPW Fluid Transfer Group Europe BV.
Although the utmost care has been taken with this publication, errors and omissions cannot be entirely
excluded. The OPW Fluid Transfer Group Europe BV therefore accepts no liability, not even for direct or
indirect damage, occurring due to or in relation with the application of publications issued by OPW Fluid
Transfer Group Europe BV.
This is an OPW Fluid Transfer Group Europe BV product, for technical assistance, information and/or
complaints contact:
OPW Fluid Transfer Group Europe BV
Visiting adress:
Roggestraat 38
2153 GC Nieuw Vennep
Postal adress:
P.O.Box 32
2150 AA Nieuw Vennep
T: [phone]
F: [phone]
E: [e-mail]
W: http://www.opw-ftg.nl
Mr. Harry Gilde
Managing Director

Rack Monitor 8800E/8801E
Document: Installation Manual
Date: 24 August 2016
Version: B.1
Page 3 of 29 Document: H71342
Warranty
All parts and products are thoroughly inspected and tested from the time raw material is received at
our plant, until the product is completed. We guarantee that all products are free from defects in
materials and workmanship for a period of one year from the date of shipment. Any product that may
prove defective within said one year period will, at our option, be promptly repaired, or replaced, or
credit given for future orders. This warranty shall not apply to any product which has been altered in
anyway, which has been repaired by any party other than an authorized service representative, or
when such a failure is due to misuse or conditions of use. We shall have no liability for labour costs,
freight costs, or any other cost or charges in excess of the amount of invoice for the products.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, AND
SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
Approvals
The 8800E/8801E CIVACON Loading Rack Monitor is suitable for
Equipment group II, category 2(1)
Class I, Division 1, Groups C & D
hazardous locations with intrinsically safe outputs, and housed in an Explosion Proof
Enclosure. All monitors are ATEX / FM / CSA approved. Please consult the factory for the availability of
special models.
Technical assistance in the U.S.A.
If at any time during the installation a question arises that is not covered in this Installation
Instruction, or with any other applicable documents referenced, feel free to call the
CIVACON ELECTRONICS TECHNICAL ASSISTANCE LINE :
In the U.S.A., Call 1-800-5 CIVACON . (800-524-8226)
For the CUSTOMER SERVICE DEPARTMENT :
In the U.S.A., Call 1-888-526-5657
In other countries, call your local agent.
4304 MATTOX RD. * KANSAS CITY, MO 64150
PH: [phone] * FAX: [phone]
[phone] [phone]

Rack Monitor 8800E/8801E
Document: Installation Manual
Date: 24 August 2016
Version: B.1
Page 4 of 29 Document: H71342
Important.
Entity parameters for pin 11 on all rack 8800E rack monitors with a serial number starting
with a “1” has been changed.
Terminals
Entity
2 Wire
5 Wire
Grounding
Data
Emergency Sw
Internal
Parameter
s
CN2 / pin1~8
CN2 / pin 4,5,6,8
CN2 / pin9
CN2 /pin11
CN5
CN7
U
o
12,6 V 12,6 V 12,6 V 12,6 V 12,6 V 12,6 V
I
o
200mA 800mA 56mA 121mA 28mA 45mA
P
o
630mW 2,52 W 178mW 380mW 89mW 1,41W
C
o
3,7 µF 3,7 µF 3,7 µF 3,7 µF 3,7 µF 3,7 µF
L
o
2mH 110 µH 22,5mH 4.5mH 90mH 32,5mH
Table of Contents
Installation Manual ...........................................................................................................................................1
Disclaimer .........................................................................................................................................................2
Warranty.........................................................................................................................................................3
Approvals .......................................................................................................................................................3
Technical assistance in the U.S.A. ................................................................................................................3
Table of Contents .............................................................................................................................................4
1 Specifications...........................................................................................................................................6
1.1 Specifications inside Enclosure ........................................................................................................6
1.1.1 Specifications Printed Circuit Board (PCB) ..................................................................................6
1.2 Specifications external environment .................................................................................................7
1.2.1 Cable Glands Specifications.........................................................................................................7
1.3 General Specifications ......................................................................................................................7
1.3.1 Bolts ..............................................................................................................................................8
1.3.2 Package Dimensions ....................................................................................................................8
1.3.3 Storage of the Rack Monitor 8800E/8801E ..................................................................................8
1.4 Nameplate .........................................................................................................................................8
1.5 Compliance .......................................................................................................................................9
2 Initial installation....................................................................................................................................10
2.1 Safety precautions ..........................................................................................................................10
2.2 Installation Preparations..................................................................................................................10
2.3 Installation Rack Monitor 8800E/8801E..........................................................................................10

Rack Monitor 8800E/8801E
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Version: B.1
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Mounting Points .............................................................................................................................................12
2.4 Electrical wiring / installation ...........................................................................................................14
Sensor ..........................................................................................................................................................14
2.4.1 Mains wiring ................................................................................................................................17
2.4.2 Relay outputs ..............................................................................................................................18
2.4.3 Data communication ...................................................................................................................20
3 System configuration ............................................................................................................................22
4 Maintenance ...........................................................................................................................................24
4.1 Check Points ...................................................................................................................................24
5 Operational Use .....................................................................................................................................24
6 Dismantling Rack Monitor ....................................................................................................................25
7 Trouble shooting....................................................................................................................................26
8 Procedure in case of an Error or Emergencies ..................................................................................26
Sensor cable specifications:.........................................................................................................................27
Annex A - Available detail wiring drawings of the Rack Monitor 8800E/8801E and associated parts ..28
Annex B - Modification Mounting Holes ......................................................................................................28
Annex C - Recommended Spare Parts.........................................................................................................28
Annex D - Official documents .................................................................... Fout! Bladwijzer niet gedefinieerd.
Rack Monitor Test equipment. ......................................................................................................................29

Rack Monitor 8800E/8801E
Document: Installation Manual
Date: 24 August 2016
Version: B.1
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1 Specifications
The Rack Monitor 8800E/8801E is a loading rack monitoring system detects and communicates an overfill
condition to the loading rack control automation equipment by means of a normally open relay contact. In
addition this non-permissive condition as well as diagnostic information is displayed. A typical system
contains loading rack control monitor (88xxE Rack Monitor) and a API 10 wire screened coiled cable with a
black 10 pins 4 J-slot plug (Model 7400E).
Thermistor and optic signal inputs allow compatibility with the NEN-EN13922 and two other API standard
signaling conventions commonly used in the industry. Either of these signals comes from the truck/trailer
mounted on-board control monitor or sensors. The 88xxE rack monitor supersedes the 84xx and 85xx type
rack monitors and are suitable for hazardous locations with intrinsically safe outputs, and are housed in a IP
65, Explosion Proof “d” Enclosure.
There are two versions available. The Rack Monitor 8800E is a complete version with display. The Rack
Monitor 8801E is a version without a display. The installation of both versions is the same.
1.1 Specifications inside Enclosure
Free Volume : <3L empty, <2.2L with Main PCB and Display PCB
Internal Pressure : 80 kPa (0.8 bar) to 110 kPa (1.1 bar) (atmospheric pressure)
1.1.1 Specifications Printed Circuit Board (PCB)
Mains:
Nominal min. input voltage : 110 Vac.
Nominal max. input voltage : 230 Vac.
Frequency : 50 / 60 Hz
The nominal power consumption depends on ambient temperature.
Above 0ºC (32ºF) no internal heating is needed
Nominal power consumption : 20VA.
Below 0ºC (32ºF) a certain amount of power is used to keep the liquid display within operating temperature.
Nominal power consumption : 30VA.
Nominal input current : at 110Vac -> 0.4A rms.
: at 230Vac -> 0.2A rms.
Mains current limitation
internal fuses : 2AT
Relay contacts:
Input voltage : 250V ac/dc max.
Relay contacts current limitation:
Internal fuses : 5AT
•All cables will guided into the Rack Monitor by use of Cable Glands (see Annex A of IEC 60079-0
and Annex C of IEC 60079-1)

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Date: 24 August 2016
Version: B.1
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1.2 Specifications external environment
Temperature Range (Ta) : -45°C (-42.8°F) to +70°C
Max. surface temperature (T4) : ≤135°C (21.1°F)
Relative humidity : 50 ± 5%
IP Class closed : IP65 acc. to IEC 60529
Resistant to : UV Light (within Sun light)
: Corrosion
: Ingress of Gasoline vapours and liquids
: (Diesel) Exhaust fumes
: Rain Water
: All other weather conditions
: Explosive Mixtures
External Pressure : 80 kPa (0.8 bar) to 110 kPa (1.1 bar) (atmospheric pressure)
Air : normal oxygen content, typically 21% v/v
1.2.1 Cable Glands Specifications
Pitch (P) : 0.7 ≥P ≤2 mm
Thread form an quality of fit : Medium or fine tolerance quality acc. To ISO 965-1 and ISO 965-3
Threads engaged : ≥5
Depth of engagement : ≥8 mm
Execution (ATEX) : M20
Execution (FM) : ¾”-14 NPT
Safety class : Explosion proof Ex d
1.3 General Specifications
Outline size 8800E/8801E : width = 310 mm
: height = 280 mm
: thickness = 80 mm
Material : Aluminum with <7.5% Mg (acc. to IEC 60079-0 Group II, zone 1)
: AL 6061
Surface Resistance : ≤1 GΩ(at 23±2°C and relative humidity stated) (between parts)
Min. X sect. earth con. (S) : at least 4 mm2
Earth continuity torque : 10 Nm (±10%)
View angle display : ~25°
Visibility display : ~0.5 m
View angle LED’s : 120°
Visibility LED’s : 20 m (no direct sunlight)
Seals : NBR
•The gasket(s) shall be attached or secured to one of the mating faces to prevent loss, damage or
incorrect assembly. The gasket material shall not itself adhere to the other joint face and has to be
slightly greased.

Rack Monitor 8800E/8801E
Document: Installation Manual
Date: 24 August 2016
Version: B.1
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1.3.1 Bolts
Yield Stress Limit : 450 N/mm2
Tensile Stress Limit : 700 N/mm2
Thread engagement (h) : > Dbolt
1.3.2 Package Dimensions
Package outside dimensions 8800E/8801E (HxWxD) :45x40x50 cm
Package weight 8800E/8801E : 12 Kg (26 lb)
Package outside dimensions 8800E/8801E with cable-plug assembly :45x40x50 cm
Package max weight with cable-plug assembly : 25 Kg (55 lb)
Keep the Rack Monitor 8800E/8801E into the initial box and store it into a dry warehouse. Make sure (before
installation or storage) to check if the package and the Rack Monitor 8800E/8801E is free from damages.
1.3.3 Storage of the Rack Monitor 8800E/8801E
Storage Temperature (Ts) : -20°C (-4°F) to +70°C
The storage and transport ambient temperature of the 8800E/8801E may never exceed the above
mentioned temperature range to prevent damage to the liquid crystal display.
Read installation chapter for recommended precautions when the 8800E/8801E is used in the maximum
ambient operating temperature range.
The Liquid crystal display must be shielded from direct sunlight.
1.4 Nameplate
The nameplate of the Rack Monitor 8800E/8801E is affixed to the outside of the bottom part of the
Enclosure. The material is stainless steel and will be attached to the Enclosure by means of 4 stainless steel
drive screws (see Figure 1). The font used on the nameplate is Arial in sizes 2 to 3.5 points high, depending
on the information containing. The nameplate contains at least the supplier, brand, type, serial number, year
of manufacturing, protection type, certificate number, temperature range and product category.
Figure 1

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Date: 24 August 2016
Version: B.1
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1.5 Compliance
See inserted Declaration of conformity H71794 for the latest standards and directives.
Please contact OPW when this document is missing
To get the Rack Monitor enclosure with a CE marking, the following directives are applicable with IS Outputs
The Rack Monitor 8800E/8801E is designed with the use of the following standards.
Used Standards:
IEC/EN 60079-0 : Electrical apparatus for explosive gas atmospheres – Part 0 : General requirements
IEC/EN 60079-11 : Electrical apparatus for explosive gas atmospheres – Part 11 : Intrinsic safety ”i”
IEC/EN 60079-1 : Electrical apparatus for explosive gas atmospheres – Part 1 : Flameproof enclosures ”d”
IEC/EN 60079-26 : Electrical apparatus for explosive gas atmospheres – Part 26 : eq. prt. Level (EPL) Ga
IEC 60529 : Degrees of protection provided by enclosures (IP Code)
EN 13922 :Tanks for transport of dangerous goods -
Service equipment for tanks –
Overfill prevention systems for liquid fuels
With regard to the Electromagnetic Compatibility the following standards are applied:
EN 61000-6-2 : Generic standards, Immunity for industrial environments
IEC/EN 61000-4-2 : Electrostatic discharge immunity test (ESD,)
IEC/EN 61000-4-3 : Radiated radio-frequency electromagnetic field immunity test,
IEC/EN 61000-4-4 : Electrical Fast Transient/burst immunity test (EFT),
IEC/EN 61000-4-5 : Surge Immunity test,
IEC/EN 61000-4-6 : Immunity to conducted disturbances, inducted by radio-frequency fields,
IEC/EN 61000-4-11 : Voltage dips, shorts interruptions and voltage variations,
EN 61000-6-4 : Generic standards, Emission for industrial environments
EN 55011 : Conducted emission
Radiated emission
EN 61000-3-2 : Harmonics
EN 61000-3-3 : Flicker

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Document: Installation Manual
Date: 24 August 2016
Version: B.1
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Initial installation
Attention: Installation must be performed by authorized and trained personnel only.
1.6 Safety precautions
Warning: Read & Understand this instruction before starting installation.
•Equipment to be used for its designated purpose only.
•Local regulations for installation have to be followed at any time.
•Product flow may result in static electricity, earthing of the equipment is required.
•OPW instructions must be followed for installation of any OPW Product at any time.
•Make sure to use adequate personal protection at all time during the operation,
Caution: Switch OFF mains power before making any connections
1.7 Installation Preparations
For safe and efficient transportation, Rack Monitor 8800E/8801E’s is packed in a box. Each shipment can
contain one or more boxes with fastening materials for assembly of the Rack Monitor 8800E/8801E. Also
optional accessories are packed in boxes.
When on arrival one decides to store the Rack Monitor 8800E/8801E for later use, keep the Rack Monitor
8800E/8801E into the initial box and store it into a dry warehouse (for details see chapter 1.3.3). Make sure
(before installation or storage) to check if the Rack Monitor 8800E/8801E is free from damages.
All Rack Monitor 8800E/8801E’s will have an unique identification by means of an unique serial number.
Bolts, nuts and washers for mounting of the Rack Monitor 8800E/8801E are included in the scope of supply.
Following requirements apply for these materials:
•Bolt material minimum Stainless Steel class A2-70
•Torque setting as per bolt class.
No special tools or equipment for installation of the Rack Monitor 8800E/8801E are required.
Make use of metric Allen Keys and metric wrenches to secure the nuts from rotating.
1.8 Installation Rack Monitor 8800E/8801E
Steps to mount the Rack Monitor 8800E/8801E:
•Remove the Rack Monitor 8800E/8801E from the box and make sure it is free from damages,
•Check if the Rack Monitor 8800E/8801E corresponds to the drawing in Figure 2.

Rack Monitor 8800E/8801E
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Date: 24 August 2016
Version: B.1
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Figure 2
•Remove the 12 bolts mounted into the door,
•Open the door as far as 180°,
Warning: Make sure always to open the door by 180°, because there is a risk that the hinges could be
damaged when not opened completely (see Figure 3).
Figure 3

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Version: B.1
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•Prepare the designated position for installation,
•Make sure that the drilled holes are at least 8,4 mm or M8 threaded (when you don’t want to use the
supplied nuts) and that they correspond to the holes of the enclosure.
•Position the Rack Monitor 8800E/8801E in front of the drilled holes (see Fout! Verwijzingsbron niet
gevonden.),
•Attach the Hexagon slotted bolts M8x65 and fixate them with the supplied M8 nuts (see Fout!
Verwijzingsbron niet gevonden.),
Or
•Tap M10 screw thread in the back of the enclosure, to mount the Rack Monitor 8800E/8801E from
the rear (see Annex B - Modification Mounting Holes for instructions) using M10 bolts,
Figure 4
Mounting Points
•Tighten the bolts and the nuts with a minimum of 14.5 Nm and a maximum torque of 27.6 Nm,
•Select a suitable cable gland that meets the cable outer diameter.
•Secure the (Ex “d” M20x1,5mm Certified) cable glands into the desired location.
M8 Washers &
Self Retaining Nuts (4x)
Hexagon Slotted Bolts
M8x65mm (4x)
Mounting Points (4x)

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Version: B.1
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•Determine the conductor length required to connect to the designated terminal block and prepare the
cable accordingly, removing part of the outer sheath where required to reveal the insulated
conductors. (wires should be cut to length with no excessive wire coiled inside the enclosure).
•Strip the insulated wires to the desired length (OPW recommends the use of bootlaces or crimping
pins to connect multi-stranded wires. This provides a secure connection to terminal blocks and
captive terminals and stop wire strands short circuiting to adjacent connectors).
•Ensure that the seal is in a relaxed state by unscrewing the seal nut until there is no compression on
the seal.
•Pass selected cable through the gland to desired position, then tighten seal nut by hand until heavy
resistance is felt, then rotate one full turn with the appropriate spanner
•Start connecting the wiring according to the following steps,
Note : Use one of the two provided ground bolts ( see Figure 5 ). to ensure a proper and reliable grounding
(electrical bonding ).
Note : The connection of cables and conduits to the Rack Monitor should be made in accordance with
requirements of the relevant type of protection. Cables and cable glands must be in accordance with
the type of protection. Unused openings must be closed with blanking elements suitable for the
relevant type of protection. The blanking elements must be certified for the type of protection and can
be removed only with the aid of tools. The product connections must guarantee the degree of
protection. Instruction Manual of the certified cable glands and blanking elements must be observed.
Grounding
bolt M6 (2x)
Figure
5

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Date: 24 August 2016
Version: B.1
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Note : Do not drill any additional (conduit) hole in the rack monitor enclosure. This will violate the
enclosure’s approvals and voids the warranty.
1.9 Electrical wiring / installation
Sensor
For connecting the monitor to the sensors mounted on
a tank-truck a plug and cable set is being used.
If the monitor is set to EN13922 specifications a 10
wire cable with a Black plug MUST be used.
However, if needed and used outside the European
union a cable and Blue 3-J-plug can be provided
(Civacon Model 7100)
Although a plug and cable set can be directly
connected to the monitor, it is recommended to do this
through a junction box to prevent or limit the damage
caused by tank-trucks driving away with the plug still
attached to the socket.
The connections of the cable to the plug according
EN13922 are shown in Figure 6 and Figure 7
In Table 1 is shown the alternative colour-code and
functional descriptions of all 10 wires.
Only Ex certified sensors within entity parameters
mentioned in Table 3 may be connected to the 8800E
and 8801E. OPW also recommends to use only
EN13922 sensors to ensure compatibility.
Note : read cable specifications mentioned under entity parameters
It is recommended to leave this pin 11 unconnected to avoid
disturbance on the other lines if not used.
See truck data communications below for details.
Figure
6
Figure
7

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Five
-
wire pin usage
EN13922 Colour Current Colour US Colour US Colour
7400E 7110 7300 7100
Black Blue Green Blue
4J Plug 3J Plug 4J Plug 3J Plug
Plug & terminal
Pin No. 10 Pins 6 Pins 10 Pins 6 Pins
1 nc
2 nc
3 nc
4 Pulse to sensors
5 Diagnostic
6 Pulse Return
7 nc
8Power
9 Ground verification
10 Ground return
Two
-
wire pin usage
EN13922 Colour US Colour
7400E 7300
Black Green
4J Plug 4J Plug
Plug & terminal
Pin No. 10 Pins 10 Pins
1 Input compartment 1
2 Input compartment 2
3 Input compartment 3
4 Input compartment 4
5 Input compartment 5
6 Input compartment 6
7 Input compartment 7
8 Input compartment 8
9 Ground verification
10 Ground return
Table 1
Note:
In all above cases plug-pin number must connected to the same terminal pin number.
e.g. plug-pin 1 must be connected to terminal pin 1 etc.

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Emergency-switch
An emergency switch or dead man switch can be
connected at the terminal shown in Figure 8.
On the right side of the 10+1 tank truck sensors terminal
strip a 2 pin terminal strip is placed.
This is an intrinsically safe normally closed input
(latched or un-latched).
As soon as the switched is opened (or broken wire) the
Rack monitor 8800E/8801E will switch to NON permissive.
If this input is NOT used a connection MUST be made
between the two pins. See Fout! Verwijzingsbron niet
gevonden..
An overview of all Intrinsically safe connections is shown
below in Fout! Verwijzingsbron niet gevonden..
Truck data communication.
All rack monitors with serial number starting with a “1” can be used to read a Vehicle Id on the truck.
A connection must be made between pin 11 and 9 on terminal (See Figure 8)
Dip switch “0” (outmost right). must be set to activate the software.
Entity parameters of both channels has to be combined. See operating manual for used RS485 Data
protocol.
OPW / Civacon advise to use ViD 1951
See H72109 for details
Figure
8
picture
1

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Date: 24 August 2016
Version: B.1
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To bypass the emergency
switch connect pin 1 to pin 2
by means of a short peace of
wire. The color is not
important and can be chosen
randomly. See Fout!
Verwijzingsbron niet
gevonden..
Mains wiring
CAUTION: Switch OFF mains power before making any connection.
110-230Vac 2Amp
MAINS
2AT
GND-OKPERM
all relay
RELAY
5AT
PERM
2AT
5Amp Ma
contacts
MAINS
2AT
110-230Vac 2Amp
Figure 11
Figure
9
Figure
10

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Date: 24 August 2016
Version: B.1
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The mains terminal block is situated at the upper left corner of the
metallic enclosure.
Since the 8800E/8801E rack monitor is equipped with a high efficient
switching regulator with a wide operating range no settings has to
made and all voltages between 110 and 230 Vac are accepted. The
two left entries of the mains terminal is used to connect the earth wire
and is internally connected to the chassis. The two right entries are
the power terminals and the neutral conductor and the line conductor.
Two internal (2AT) fuses are placed for mains current limitation.
Warning: The electrical installation must be done
according local regulations and code of practice.
Relay outputs
Five relays are used to provide 4 relay outputs.
All relays are voltage free relays and can be
used within their specifications.
The permissive relay consists of two relays in
series. When the rack monitor enters the
permissive state the first relay K1 will switch to a
closed position and after a short period the safety
switch K2 will close the loop.
As soon as the rack monitor leaves the
permissive state the safety switch K2 will switch
to open first to break the loop and secondly the
relay K1 will switch to open.
In this way K1 will always switch voltage- less.
K2 is a special relay and monitored by the
processor for failing or welded contacts. If K2 is
stuck in one position K1 will open and stay open
until K2 is repaired.
Figure
13
Figure
12
contacts
5Amp Ma
PERM
5AT
RELAY
all relay
PERM
TCP/IP
RJ45
RS485/422
RS485
RS-com
AUX2AUX1GND-OK
AUX1
5AT
5AT
GND-OK
PERM
all relay
RELAY
5AT
PERM
1AT
5Amp Ma
contacts
120 Ohm ON
5AT
AUX2
RS422120 Ohm OFF

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The second relay is closed when proper grounding of the truck is
verified.
The permissive and ground verified relay are Form A normally open
relays.
See Figure 13 and Figure 14 for details.
All relay contacts are rated at 250 Vac, 5Amp resistive
The two remaining Form C Auxiliary relays can be dedicated
to other functionalities. E.g. The Aux relay can be used as a
secondary Overfill permissive relay from software version
0.64 and higher. The white nr:9 dip switch needs to be up
(on) to activate this functionality.
Ask OPW Fluid Transfer Group Europe BV for other
available functionalities.
Figure
15
Figure
14

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Data communication
This Rack Monitor 8800E/8801E can be connected to the rest
of the world by means of RS 485 half duplex or RS485 full
duplex multi drop (See inside enclosure for detailed switch
setting).
OPW Fluid Transfer Group Europe BV recommends 24AWG
(7x32) tinned copper conductors, twisted pairs PVC insulated
with laid up twisted pairs, lapped with an overall aluminum-
polyester foil screen and 24AWG stranded tinned copper drain
wire for each pair (e.g. Belden 9729 for RS422 and Belden
9841 for RS-485).
RS-com
120 Ohm ON
120 Ohm OFF
AUX2
5AT
Half Duple
Full Duple
RS485/422
RJ45
TCP/IP
Figure
18
Figure
16
Figure
17