Metermatic SCS-400 User manual

SCS-400
Sealed Parcel Delivery
System
Installation Manual

Table of Contents
1. Introduction ......................................................................................................................1
2. Pre Installation..................................................................................................................1
2.1. General..................................................................................................................1
2.2. Exd........................................................................................................................2
2.3. Intrinsic Safe.........................................................................................................3
2.4. SCS-400................................................................................................................4
2.5. API-400 Sensor.....................................................................................................4
2.6. BVS-100 Sensor ...................................................................................................4
2.7. MAN-400 Sensor..................................................................................................4
2.8. REF-400 Sensor....................................................................................................4
3. Installation........................................................................................................................5
3.1. SCS-400 Installation Block Diagram ...................................................................5
3.2. SCS-400 All Connections.....................................................................................6
3.3. Input Power (Connector J1)..................................................................................7
3.4. Aux Battery (Connector J2)..................................................................................8
3.5. Output Power (Connector J3)...............................................................................8
3.6. RS232 / RS 485 (Connector J4) ...........................................................................9
3.7. RS232 / GSM (Connector J5).............................................................................10
3.8. Gantry Permissive Interface (Connector J7) ......................................................10
3.9. 5 Wire Sensor Interface (Connector J8) .............................................................11
3.10. CANBUS Interface (Connector J9)....................................................................12
3.11. IO Interface (Connector J10)..............................................................................16
3.12. Proximity Interface (Connector J11)..................................................................17
3.13. 2 Wire Sensor Interface (Connector J12) ...........................................................18
4. Troubleshooting..............................................................................................................19
4.1. EXD Test Points.................................................................................................19
4.2. IS Test Points......................................................................................................20
5. Certification....................................................................................................................21
5.1. SCS-400 - 15.0026X...........................................................................................21
5.2. Annex to 15.0026X.............................................................................................24
5.2.1. Equipment .................................................................................................24
5.2.1.1. Power to the non-i.s. electronics in the flameproof enclosure:.25
5.2.1.2. ANT [Ex ib] (824MHz to 1990MHz).......................................25
5.2.1.3. J8 - 5 Wire Interface [Ex ia] .....................................................26
5.2.1.4. J9 –CANBUS [Ex ia] ..............................................................26
5.2.1.5. J12 - 2 Wire Interface [Ex ia]...................................................26
5.2.1.6. J11 –Proxy Interface [Ex ia]....................................................27
5.2.1.7. J10 –Output (pin 1 w.r.t 2) Interface [Ex ia] ...........................27
5.2.1.8. J10 –Input (pin 3 w.r.t 4 Interface [Ex ia] ...............................27
5.2.1.9. JJ8 –Dallas Tag Interface [Ex ia].............................................28
5.2.1.10. J7 - GPI Interface [Ex ia]..........................................................28

5.2.2. Conditions of Certification........................................................................28
5.2.2.1. Conditions of manufacture........................................................28
5.2.2.2. Special conditions of use..........................................................29
5.3. API, BVS, MAN, REF - 15.0009X....................................................................30
5.4. Annex to 15.0009X.............................................................................................33
5.4.1. Equipment .................................................................................................33
5.4.1.1. API-400: ...................................................................................33
5.4.1.2. MAN-400:.................................................................................34
5.4.1.3. BVS-100:..................................................................................34
5.4.1.4. REF-400: ..................................................................................35
5.4.2. Conditions of Certification........................................................................36
5.4.2.1. Special Conditions of use .........................................................36
5.4.2.2. Conditions of manufacture .......................................................36

SCS-400
Installation Manual
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1. Introduction
The SCS-400 System, designed and manufactured by Metermatic (Pty.) Ltd. South
Africa, is intended to control and monitor liquid product transports. The SCS-400 is
mounted on bulk petroleum vehicles and is designed to electronically seal all
loading/offloading and access points on the vehicle, providing a “sealed parcel delivery”
system.
The SCS-400 is housed in a combined Exd and Intrinsic safe enclosure, which has
approximate dimensions of 347mm x 226mm x 91mm. Four M10 bolts secures the SCS-
400 onto the vehicle. The SCS-400 enclosure has seven M20x1.5 gland entries, the first
three providing cable entries to the Intrinsic Safe side and four providing cable entries to
the Exd side. There is also an M16x1.5 gland entry at the top providing an entry for the
M16 Exd antenna bush assembly, when GSM connectivity is required.
2. Pre Installation
Failure to adhere to the operating conditions and considerations described
below could result in the equipment malfunctioning.
2.1. General
a) The SCS-400 enclosure must be mounted within a stainless steel cabinet for additional
protection from the elements.
b) The enclosure shall be installed so that it is not subjected to direct spray from the
vehicle’s wheels.
c) If welding is to be done on the vehicle after the SCS has been installed, then all
connections to the SCS must be isolated, and the internal battery should be
disconnected.
d) No additional holes may be drilled into any enclosure, as this will invalidate the
certification of the system.
e) No additional components may be installed in any enclosure, as this will invalidate the
certification of the system.
f) Repair of this equipment shall be carried out in accordance with the applicable code of
practice.
g) All cables that interconnect the various system components and sensors must be
securely fastened.

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2.2. Exd Instructions
The following instructions apply to equipment covered by certificate number IECEx ICS
15.0026X. Referring to the FLP-100 (Exd Enclosure specifically)
Certification Number: IECEx ICS 15.0026X
Classification: Exd [ia] [ib] IIA T4 Mb Gb
Ambient temperature: -20°C to +60 deg °C
PART No. FLP-100
VOLTAGE: 24V
WATT: 7.5W
Installation Safety Instructions:
a) Manager’s site rules and guidelines to be followed to install equipment.
b) Refer to Installation drawings for the flameproof dimensions and correct wiring.
c) Inspection of the FLP-100 Enclosure (SCS-400) should be performed prior to
powering of the system.
d) The following items should be inspected, but inspection should not be limited to:
Flameproof bolted joints for missing or loose fasteners.
Flameproof joint gaps.
Flameproof compression glands, blanking plugs and certified bushings.
Check all terminations for loose connections.
e) Only qualified personnel are allowed to be installing, inspecting and maintaining
equipment.

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2.3. Intrinsic Safe Instructions
The following instructions apply to equipment covered by certificate number IECEx ICS
15.00026X and IECEx ICS 15.0009X.
1. The equipment is only certified for use in ambient temperatures from -20C to +60C
and should not be used outside this range.
2. Installation shall be carried out in accordance with the applicable code of practice by
suitably trained personnel and in accordance with the Manual provided.
3. The plastic enclosures (REF-400) shall be installed so that under normal conditions of
use, maintenance and cleaning, danger of ignition due to electrostatic charges is
avoided.
4. The cleaning of the plastic enclosures should be executed with a damp cloth.
5. Repair of this equipment shall be carried out in accordance with the applicable code
of practice.
6. Programming connectors JJ1, JJ2 and JJ3 are only used during manufacturing, repair
or overhaul.
7. The BR2330 coin cell is not replaceable.
8. Only a Metermatic BBU-500 can be used in the SCS-400 system, replacement may
only take place in a Safe Area. This is not a user replaceable battery.
9. The certification of this equipment relies upon the following materials used in its
construction:
Aluminium enclosure (API-400, MAN-400, BVS-100).
Plastic enclosure (REF-400).
Type FR453 Elite Chemicals potting compound.
10. The certificate number has an ‘X’ suffix, which indicates that special conditions of
installation and use apply. Refer to Certificate 15.0026X - Special conditions of use
and Certificate 15.0009X Special Conditions of use for more information.

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2.4. SCS-400
a) The installed location height of the unit should permit easy viewing of the display,
and provide convenient access to the keypad and the M16 Exd Antenna Bush
assembly located on the top of the enclosure.
b) Access for servicing the unit is through the front cover. Complete access by service
personnel for repair and removal of parts should be provided. For ease of service, the
cover must swing open more than 100°. The enclosure is hinged on the left.
c) The SCS enclosure must be earthed to the vehicle’s chassis by means of either the
connecting bolts or bonding point provided.
d) A plastic isolator separates Intrinsically Safe connections J7 and J8 from Non
Intrinsically Safe connections J1, J2, J3, J4 and J5. Care must be taken that in the
event of any connection comes loose, a clearance of at least 50mm is maintained
between IS and non-IS connections.
2.5. API-400 Sensor
a) The API adaptors must be installed so that the API-400 sensor is positioned
horizontally.
2.6. BVS-100 Sensor
a) Ensure that the correct length BVS-stem is used for the bottom valve type.
b) When attaching the BVS-100 sensor to the bottom valve ensure that the bolts are not
overtightened, as this will affect operation.
2.7. MAN-400 Sensor
a) The MAN-400 sensors must be installed on top of the manhole cover perpendicular to
the opening movement of the manhole.
b) All MAN-400 sensor cables must be routed neatly and securely to prevent any
obstruction to operators or interference with manhole operation.
c) All MAN-400 sensors must be orientated in the same direction.
2.8. REF-400 Sensor
a) The REF-400 sensor must be installed at the end of the CAN bus. (Refer to section
CANBUS Interface (Connector J9) for details).
b) The REF-400 sensor cable must be routed neatly and securely to prevent any
obstruction to operators or interference with manhole operation.
c) The REF-400 sensor must be orientated in the same direction as all the MAN-400
sensors.

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3. Installation
3.1. SCS-400 Installation Block Diagram

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3.2. SCS-400 All Connections
GCAN
VCAN
CANH
CANL
5WPO 5WPI 5WPD GND
P-OU T
P-IN
TX / A RX / B GND VOUT GND BAT+ NTC
BAT-
24V IN
GND
TX-GSM
RX-GSM
GND
10V
OUT
GANTRY
GND
GANTRY
POWER
5 WIRE SENSORS GPI RS232-GSM RS232/RS485 VOU T BATTERY POW ER
2 W IRE SE NSORS PROXY OUT IN CAN BUS
ISOLATOR
J1J2J3J4J5J7J8
J9
J10
J11
J12
1 2 3 4 5 6 7 8 9 10 11 12 13 + - + - + - + - - + CH CL
COMPARTMENT 1 COMPARTMENT 2 COMPARTMENT 3 COMPARTMENT 4 COMPARTMENT 5 COMPARTMENT 6 COMPARTMENT 7 COMPARTMENT 8 COMPARTMENT 9
COMPARTMENT 10 COMPARTMENT 11 COMPARTMENT 12
RETAIN GND
PROXY 1 BROWN (+)
PROXY 1 BLUE (-)
PROXY 2 BROWN (+)
PROXY 2 BLUE (-)
SWITCHED 12V OUT
OUTPUT GND
INPUT
INPUT GND
F2
400m A
F12
40m A
F13
40m A
F14
40m A
F15
40m A
F6
40m A
F7
100mA F8 100mA F9 100mA F10 100mA F1
5A
F11
5A
F3
125mA
F4
80m A
F5
125mA
F16
315mA
TE S T
PO I N TS
GND T P1 TP2 TP3
TP4 TP5 T P6 T P7
VOLTAGE:
TP1
TP2
TP3
TP4
TP5
TP6
TP6
TP7
=
MIN
MAX
=
=
=
=
=
=
=
24V
23V
6.2V
12V
3.3V
16V
21V
6V
+ -
JJ8
1 W IRE
BUS
5W SENSOR GREY
5W SENSOR YELLOW
5W SENSOR BLUE
5W SENSOR GREEN
5W SENSOR WHITE
OPTIC SOCKET PIN 8 OPTIC SOCKET PIN 6 OPTIC SOCKET PIN 4
OPTIC SOCKET PIN 10
RS232 OR RS485 e.g Printer / OBC
12V OUTPUT TO RIO-200
BBU-500
VEHICLE BATTERY
AUX RS232 PORT IF GSM NOT USED

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3.3. Input Power (Connector J1)
Nominal Input Voltage: 24VDC
Input Voltage range: 22VDC to 30VDC
Max Input Current: 1600 mA
(8 Compartment vehicle with full control. Internal Battery
Charging)
Max Input Current: 640 mA
(8 Compartment vehicle with full control. Internal Battery Fully
Charged)
It is important to supply the SCS-400 from the Isolator Switch and not
directly from the battery as shown in the figure below. Failure to do this will
invalidate the IS certification.
The SCS-400 is protected by a 5A internal fuse (F1). It is recommended to connect an
additional 3A inline fuse on the positive (+) line from the vehicle battery. Install this fuse
after the isolator switch as shown below.

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Installation Manual
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3.4. BBU-500 Aux Battery (Connector J2)
Max Voltage = 21VDC
Min Voltage = 16VDC
Charge time = 3.5hours
Note: The SCS-400 will not operate when the battery voltage is below 16V
Only the Metermatic BBU-500 may be connected to these terminals.
The BBU-500 can only be replaced when no explosive atmosphere is
present.
The BBU-500 contains Lithium Ion cells. Care must be taken when
replacing the BBU-500 that the leads are not shorted together.
Take care when closing the EXD lid that the battery leads are not
clamped between the lid and enclosure.
3.5. Output Power (Connector J3)
VOUT = 24V - Vehicle Battery
OR
VOUT = 21V - Aux Battery (BBU-500) while SCS-400 is isolated from vehicle battery
during loading.
The voltage from connector 3 is used to power the RIO-200 that is located in the
pneumatic control box (PCU-500-XX, PCU-600-XX).

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Installation Manual
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3.6. RS232 / RS 485 (Connector J4)
The SCS-400 can interface to communication devices (Printer or On Board Computer)
via connector J4.
The port can be configured For RS232 or RS485 by using the jumper settings JP1 –JP4.

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3.7. RS232 / GSM (Connector J5)
This is an auxiliary communication port that can only be used if the GSM module is not
used.
3.8. Gantry Permissive Interface (Connector J7)
The overfill status of the vehicle is transmitted to the Gantry via the GPI connections on
the SCS-400.
It is important not to exceed the safety parameters of J7 (see section J7 GPI
Interface [Ex ia]) Failure to do this will invalidate the IS certification.
These connections are wired to the 10 pin Optic Socket as shown in the figure below.

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3.9. 5 Wire Sensor Interface (Connector J8)
The SCS-400 interfaces to 5 Wire Overfill Sensors that comply with EN13922.
The SCS-400 can interface to a maximum of 10 x 5 wire sensors (10-compartment
vehicle).
It is important not to exceed the safety parameters of J8 (see section J8 - 5
Wire Interface [Ex ia]). Failure to do this will invalidate the IS certification.
The sensors connections are shown in the figure below:

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Installation Manual
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3.10. CANBUS Interface (Connector J9)
The following sensors / components interface to the SCS-400 via the CAN Bus:
API-400
BVS-100
PCU-500/600-XX
MAN-400
REF-400
It is important not to exceed the safety parameters of J9 (see section J9 –
CANBUS [Ex ia]). Failure to do this will invalidate the IS certification.
NOTE The most important issue regarding the wiring of the sensors on the CAN bus,
is that the REF-400 MUST be connected at the furthest point on the BUS.
When wiring the CAN Bus, the objective is to maintain the shortest possible cable
length connecting all sensors.
Examples of CAN BUS wiring is shown below. The first example is when the SCS-400 is
mounted in front of the API’s and the second example is when the SCS-400 is mounted
behind the API’s.
These examples illustrate that the sensor sequence does not have to follow the
compartment number sequence. Note that the PCU-500/600-XX can be mounted in
between the bottom valve sensors.
Please note: The actual wiring sequence can differ from the examples below depending
on equipment mounting and cable trunking / piping provided on the tanker.
The REF-400 sensor contains a GPS module. The REF-400 enclosure must not be
covered with any metal plate that will interfere with the GPS signal.

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3.11. IO Interface (Connector J10)
The SCS-400 has a single Intrinsically Safe output that can be used to switch a certified
relay or solenoid. Alternatively, it can be used as a permissive signal to a certified OBC.
The SCS-400 has a single Intrinsically Safe input that can be switched from a certified
contact.
It is important not to exceed the safety parameters of J10 (see sections J10 –
Output (pin 1 w.r.t 2) Interface [Ex ia] & J10 –Input (pin 3 w.r.t 4 Interface
[Ex ia]). Failure to do this will invalidate the IS certification.

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3.12. Proximity Interface (Connector J11)
The SCS-400 can interface to two certified Namur Proximity switches or Current
switches.
It is important not to exceed the safety parameters of J11 (see section
J11 –Proxy Interface [Ex ia]). Failure to do this will invalidate the IS
certification.