Rosemount® CTS - SCU 51
Product Data Sheet
Ed 02
Product Data Sheet
February 2013
February 2013
Ed 02
Rosemount® CTS - SCU 51
Supply and Communication Unit
Rosemount® CTS is a Custody Transfer Measurement System for LNG. Tank data is measured by Tank
Gauge Units (TGU 53), processed and transferred to the Supply & Communications Unit (SCU) that acts
as the connection hub where the data is further processed and made available for clients. There is also
a service and backup touch screen display each for the Primary CTS and the optional Secondary CTS.
„„ All basic tank data from deck available on touch screen display (SCD)
„„ Service and diagnostics of deck units available from the SCD for easy trouble shooting
„„ Systems supplied as Primary CTS (single channel) can be upgraded to Primary and Secondary CTS (dual
channel) within the same cabinet
©2013 Emerson Process Management. All rights reserved.
The Emerson logo is a trademark and service mark of Emerson Co. Rosemount and the
Rosemount logotype are registered trademarks of Rosemount Inc.
Emerson Process Management
Rosemount Tank Radar AB
Box 13045
SE-40251 Sweden
T +46 31 337 00 00
F +46 31 25 30 22
www.EmersonProcesss.com/mtm
The contents of this publication are presented for information purposes only, and while effort has
been made to ensure their accuracy, they are not to be construed as warranties or guarantees,
expressed or implied, regarding the products or services described herein or their use or
applicability. Standard Terms and Conditions of Sale can be issued by contacting Rosemount
Tank Radar AB. We reserve the right to modify or improve the designs and specifications of our
products at any time without notice. Rosemount Tank Radar AB accepts no responsibility for any
errors that may appear in this publication.
„„ Full separation of power, hardware, functionality and communication within a Primary and Secondary CTS
cabinet
Rosemount® CTS - SCU 51
February 2013
Cabinet for Deck Communication
Rosemount® CTS - SCU 51
February 2013
Technical Data - Supply and Communication Unit (SCU)
The Supply and Communications Unit (SCU) is the central
cabinet for connection of the deck devices in a Rosemount® CTS
system. All the information from the Tank Gauge Units (TGU)
on the deck goes through the SCU, and a touch screen display
provides a possibility to monitor tank data and perform service
tasks in case the Workstation is unavailable. A Rosemount® CTS
SCU cabinet can handle up to 17 tanks. The cabinet comes in one
standard size regardless of if the system is a Primary CTS only
system or a combined Primary plus Secondary CTS system.
Standard Features
Dimension
600 x 1795 x 400 mm (Width x Height x Depth)
Weight (typical)
Maximum 125 kg
AC Mains supply (channel one)
115 V or 230 V ±10%
50 or 60 Hz
Max 650 VA
Continuous 450 VA
External uninterrupted DC supply (channel two)
24 V, +30%, -25%
Maximum 16 A (with 2 SCT)
Maximum 10 A (with 1 SCT)
Operating Temperature
0 to 35 °C
Tested and approved towards IACS UR E10 requirements within 0 to 45 °C
Operating Humidity
20% to 80% (non-condensing)
„„
Supply intrinsically safe power to the Tank Gauge Units and
connected devices
Painting
RAL 7032
Sealing
IP22
„„
Store configuration data for the Tank Gauge Units and
connected devices
Additional serial interfaces
2 RS-485
2 RS-232
„„
Collect and store real-time data from the Tank Gauge Units
and connected devices
One Supply and Communications Display (SCD) is provided each
for the Primary CTS and the optional Secondary CTS. This means
that systems with only one Primary CTS measuring channel have
a single SCD installed in the SCU, while dual channel, Primary
and Secondary, CTS systems have two SCD.
Interface, service connection
10 BaseT/100 BaseTx
On each SCD it is possible to:
Cable length to Tank Gauge Units
Maximum 400 m
LED indicators
Power on/off
Explosion Protection
Associated apparatus
„„
Support clients with requested data
„„
6.5” touch screen providing diagnostics, service and tank
data monitoring functions to the operator
„„
Built-in UPS
„„
Relay outputs for system failure indication
Touch Screen Display Functions
„„
Optional Features
„„
Depending on configuration the SCC data servers may be
configured for full redundancy, where SCC act as backup
servers for each other
Mechanical installation
Access all tank data such as Raw Level*, Vapor Pressure,
Spot Temperatures and Average Temperatures (Liquid
and Vapor). This can serve as a backup if Workstations are
unavailable for CTS reports and calculations.
„„
View diagnostics information for TGU and auxiliary
equipment
„„
Perform service actions such as replacing devices, store/
restore configuration database, tank scan, data logging etc.
*) Raw Level is uncorrected for trim, list and tank expansion.
No. of relay control outputs
8 (incl. System Failure Alarm)
No. of terminals/output
3 (Normally Closed – Common – Normally Open)
Contact rating
250 VAC, 5 A max (resistive load)
Supply and Communication Battery (SCY)
Type
Gel filled sealed lead battery, hence spill proof.
Capacity
2x12 V
16 Ah
Operating Time
> 20 minutes
Battery life
Up to 8 years at 25 °C , impaired to 3 years at 35 °C
Requires no maintenance after having been taken into operation.
Supply and Communication Display (SCD)
Type
The Supply and Communications Unit is placed indoors in a
non-hazardous and ventilated area.
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Relays:
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6.5" touch screen that provides service and diagnostics functions, as well as
tank monitoring functions to the operator.
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