Metermatic Sealed Compartment System (SCS)

Secure your deliveries. Avoid unauthorized product removal. Put a stop to product contamination with the Sealed Compartment System (SCS).

The SCS is a Sealed Parcel Delivery system, which effectively secures the load for transfer from one point to another in accordance with EN15208 and provides detailed and accurate information regarding any changes in the load status.

All vehicle compartment inlets and outlets are continuously monitored and any opening or closing of any of the vehicle's loading or unloading points is detected, date time and position stamped (subject to the vehicle being equipped with a suitable GPS/GPRS device) and recorded by the SCS Monitor. The sensors are uniquely numbered to prevent their substitution with a fraudulent sensor. The SCS also monitors and records the state of each compartment by way of the bottom valve sensors, the bottom retain sensors and, optionally, the overfill sensors. All data recorded is available for transfer via GPRS and / or can be printed.
  • Features & Benefits
  • Configuration
  • Technical Specification
  • Approvals
  • Downloads

Features & Benefits

  • Assistance in the prevention of “cocktails” where:
  • a non compatible product is loaded into a compartment which already contains a different product, or
  • product is dropped into the incorrect forecourt tank. This is achieved by immediate availability to the operator of information regarding the status of the compartment (empty or not) as well as which product was loaded.
  • Prevention of overfills by connecting the overfill sensors to the SCS monitor. Should an overfill be detected the SCS will send a signal to the gantry to  allow the preset to shut it down and, as an optional extra, shut the truck bottom valve.
The SCS is available either with or without the optional Pneumatic Interface System which allows for pneumatic control of the bottom and vent valves.

Configuration

SCS Explorer Software for PC and PDA (Optional)

 

Loading/Unloading Operation

  • Should any of the manholes or API adaptors be opened after loading has been completed and before the vehicle arrives at the service station, the compartment status will change to display “unsealed” allowing the service station owner to refuse the load.
  • If one of the compartments cannot be emptied completely, the driver can change the status of that compartment from “unsealed” to “resealed” to allow the secure return of product to the gantry. If that compartment is opened again it will change back to “unsealed” and cannot be resealed again.

Technical Specification

SYSTEM POWER
24 VDC ± 15%

POWER SUPPLY
3 intrinsically safe output channels. Certified for operation in zone 1, housed in an Exe certified enclosure

VEHICLE COMMUNICATION INTERFACE
Output power source, adjustable from 12V to 24V to power external
communication device. e.g. Printer

  • 1 x Intrinsically safe RS485 interface to SCS printer port. RS485 signal converted to RS232 which can be interfaced to a standard text printer with DTR flow control or printers with bi-directional communication
  • 1 x Intrinsically safe RS485 interface to SCS communication port. RS485 signal can be routed through to provide a RS485 interface to a secondary on truck computer.

Alternatively the RS485 interface can be routed through 2 RS232 interfaces for communication to a GPS or computer. RS485 to RS232 interfaces can be selected for Baud rates of 2400, 4800 or 9600 bps.

BACK-UP POWER
NiMH Nickel-metal hydride battery pack (4 Ah). Standby time: 72 hours under preload condition. Battery management controlled by SCS electronics.

 OVERFILL
Can interface to Two wire and Five wire optic overfill sensors. (Up to 12 compartments)

COMPARTMENT WET / DRY DETECTION
Can interface to Two wire optic retain sensors. (Up to 12 compartments)

COMMUNICATIONS (2 PORTS)
Half duplex asynchronous communications on a multi-drop RS485 network

API, MANHOLE SENSORS and REFERENCE SENSOR
Can interface to 12 API and Manhole sensors and 1 reference sensor

INPUTS
2 general purpose optically isolated inputs
1 intrinsically safe proximity sensor input

DISPLAY
320 x 240 graphic LCD

CLOCK
Non - volatile real time clock with time and date display

KEYPAD
18 key vandal proof keypad interface

SWITCHES
Vandal proof start and stop switch interface

ENCLOSURES
Rated to IP67

MEMORY
On board memory for transaction storage of +/- 19,000 events per compartment.

Approvals

The Safety and Control System has ATEX approvals for operation in hazardous locations. The system has been tested for conformance with the following assessment standards:

SCS-300 Series Safety and Control System
Sira 09ATEX2127X
Ex e ib mb [ia] IIA T4 (Tamb = -20°C to 60°C)

 II 2(1) G

EN60079-0:2006
EN60079-11:2007
EN60079-7:2007
EN60079-18:2004

API-300 Sensor
Sira 09ATEX2138X
Ex ia IIA T4 Ga (Tamb = -20°C to 60°C)

II 1 G

EN60079-0:2006
EN60079-11:2007
EN60079-26:2007

MAN-300 Sensor
Sira 09ATEX2138X
Ex ia IIA T4 Ga (Tamb = -20°C to 60°C)

II 1 G

EN60079-0:2006
EN60079-11:2007
EN60079-26:2007

Vehicle Communications Interface (VCI-200)
Sira 02ATEX2117X
[EEx ib] IIA

II 2 G

EN60079-0:2006
EN60079-11:2007

95/54 EC Directive : 1995 : Radiated Emissions
95/54 EC Directive : 1995 : Radiated Immunity
IEC 61000-4-2 : 1999 : Electrostatic Discharge
ISO 7637-2 : 1990 : Conducted Immunity
ISO 7637-3 : Coupled Immunity

Downloads