MAS2600
Tank Contents Transmitter
Reference Manual
Ed 21
December 2014
The content 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. All sales are governed by our
terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of our products at any time without notice. Damcos A/S and Rosemount Tank Radar AB accepts no responsibility for any errors that may appear in this publication.
As each system may be configured for each delivery, the content and illustrations in this manual may differ from your system.
Copyright © Damcos A/S, 2014
Reference Manual for MAS2600 in English
MAS2600: Table of Contents Reference Manual
December 2014 Ed 21
Table of Contents
Description and Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Technical Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MAS2600 Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Measuring Ranges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mounting Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Amplifier Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Amplifier PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Intrinsically Safe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Intrinsic Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Intrinsically Safe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Testing and Recalibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Recalibrating Gauge Transmitter using Pressure on the Transducer . . . . . . . 39
Recalibrating Gauge Transmitter using Vacuum (for gauge transmitters only) 40
Recalibrating the Absolute Transmitter using Pressure on the Transducer . 41
Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Trouble Shooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
MAS2600 Test Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
1
Reference Manual MAS2600: Table of Contents
Ed 21 December 2014
2
MAS2600: Description and Technical Data Reference Manual
December 2014 Ed 21
Description and Technical Data
3
Reference Manual MAS2600: Description and Technical Data
Ed 21 December 2014
4
MAS2600: Description and Technical Data Reference Manual
December 2014 Ed 21
Description and Operation
MAS2600 Tank Contents Transmitter
The MAS2600 is a 2-wire 4-20 mA level transmitter consisting of a transducer, an amplifier and an
interconnecting cable.
Transducer
The transducer is a pressure sensitive silicon micro strain gauge sensor mounted in a glass to metal
seal. The sensor is protected by an isolation diaphragm, welded to the transducer housing, with an oil
filling between the sensor and the diaphragm. Pressure changes on the front of the diaphragm will
bring a resistance change in the Wheatstone bridge of the transducer. This change in the Wheatstone bridge will be transmitted to the amplifier as a change in the electrical signal.
The transducer is fully welded, housed in titanium with a titanium diaphragm.
All transducer types are submersible (IP68).
The transducer is available in two versions:
• Gauge version
• Absolute version
As optional the transducer is available with a built-in Pt100 temperature sensor.
Cable
The cable is available as a standard version and as a high temperature version.
Amplifier
The amplifier is available in the following options:
• Programmable version: Calibration is made by dip switches and potentiometers
• Differential version: For measuring of both pressure and vacuum
The amplifier is housed in a sea water resistant polyester casing (IP56).
Application
The MAS2600 has been developed for level measuring in ballast, oil, service and fresh water tanks as
well as tanks containing media which are not hostile to titanium.
Intrinsically Safe in Hazardous Areas
The MAS2600 is certified for use with standard transmitter safety barriers or Ex isolation amplifiers
and is Ex ia IIC T4 compliant in accordance with IEC 60079-0, IEC 60079-11 and IEC 60079-26.
Type Approvals
DNV, GL, LRS, MRS, BV, RINA, KRS, ABS, PRS.
CE marked in accordance with EU directive.
5
Reference Manual MAS2600: Description and Technical Data
Ed 21 December 2014
Technical Specification
Gauge 0 - 3.5 / 0 - 7 / 0 - 16 / 0 - 35 m H2O
Transducer Ranges
Absolute 0 - 20.394 / 0 - 35.690 m H
O
2
Accuracy
Stability
TEB (Total Error Band)
Overload Capability
Built-in Temperature Sensor Pt100
Output Current
Current Limiting
Sensor Materials
Transducer cable
± 0.25% F.S. at 20°C
Max. ± 0.1% / Year
± 0.4% F.S. at ±0 to +50°C
± 2.0% F.S. at -20 to +80°C
Minimum 4 x transducer range with no changes in calibration.
6 x transducer range burst pressure.
Optional (for safe area only)
4-20 mA DC, loop powered 2-wire system
Typic a l: 25 mA
Maximum: 32 mA
Housing Titanium Grade 2
Diaphragm Titanium Grade 4
Safe area Maximum 300 m
Intrinsically safe in
hazardous area
Safe Area Transducer -20° to +125°C
Standard cable: 44m
High temperature cable: 34 m
Standard cable -20° to + 80°C
Operating Temperature Ranges
Ingress Protection
Intrinsic Safety (IS)
6
High temperature
cable
Amplifier -20° to + 80°C
Intrinsically safe in
Hazardous Area
Tran s d ucer IP 6 8
Amplifier IP 56
Ex ia IIC T4 compliant.
Transducer -20° to +80°C
Standard cable -20° to + 80°C
High temperature
cable
Amplifier -20° to + 80°C
-20° to +125°C
-20° to + 80°C
MAS2600: Description and Technical Data Reference Manual
R
loop max.
(KOhm) =
(U
loop
- 17 V) / 32 mA
December 2014 Ed 21
Power Supply
The Power Supply can vary from 17-33 VDC. Permissible load resistance is shown graphically below.
Transmitter Dimensions
Amplifier Box
Tra ns duce r
7
Reference Manual MAS2600: Description and Technical Data
Ed 21 December 2014
8
MAS2600: Ordering Information Reference Manual
December 2014 Ed 21
Ordering Information
9
Reference Manual MAS2600: Ordering Information
Ed 21 December 2014
MAS2600 Ordering Information
Typ e
A Absolute Transducer
G Gauge Transducer
H High Temperature Gauge Transducer
Transducer Ranges
3,5 mH
1
7,0 mH
2
16,0 mH
3
35,0 mH
4
7 0,8 to 2,0 bar absolute
Temperature Sensor
X X X - XX - X /
O gauge
2
O gauge
2
O gauge
2
O gauge or 0,8 to 3,5 bar absolute
2
0 without
1 Built-in Pt 100 (not available for IS installations)
Cable (length in meters)
Standard cable (-20° to 80° C)
XX
Maximum length: Hazardous area 44 m, Safe area 300 m
High temperature cable (-20° to 125° C) (-20° to 80° C for IS installation)
XX
Maximum length: Hazardous area 34 m, Safe area 300 m
Mounting
0 without fittings
1 brackets for internal mounting
2 pole mounting
3 1” pipe end mounting
4 flange mounting DN 25
5 flange mounting DN 40
6 flange mounting DN 50
9 flexible rubber tube mounting (add length in mm)
P flexible PTFE tube mounting (add length in mm)
V DN 25 flange with 1” ball valve mounting
A - M replacement
Amplifier Box
0 not supplied
1 standard box with PG 11 / PG 11
2 standard box with PG 11 / PG 13,5
3 standard box with PG 11 / PG 16
5 standard box with PG 13,5 / PG 13,5
Amplifier PCB
0 not supplied
P programmable output range gauge
D differential output range gauge
XX
10
MAS2600: Ordering Information Reference Manual
December 2014 Ed 21
Type
MAS2600 -XXX-XX-X/XX
Typ e
A Absolute Trans-
ducer
G Gauge Transducer The gauge transducer is fitted with a breather pipe at the back of the
H High Temperature
Gauge Transducer
The absolute transducer has no breather pipe, because it refers to
absolute vacuum. An atmospheric pressure sensor is used to compensate for the atmospheric pressure. The absolute transducer is especially suitable for open deck applications, where the amplifier box may
be exposed to flooding.
diaphragm to compensate for the atmospheric pressure. The breather
pipe is connected to a vent plug in the amplifier box. The gauge transducer is suitable for most applications.
The transducer is mounted with a special high temperature cable and
designed for heated tanks e.g. HFO tanks, and other applications with
high tank media temperatures.
Selecting the Transducer Type
Gauge and High Temperature Gauge Transducers
The Gauge Transmitter is normally used on dry and pressure neutral locations.
The Gauge Transmitter is available in 4 ranges:
• 0 - 3.5 mH
• 0 - 7.0 H
• 0 - 16.0 mH
• 0 - 35.0 mH
O.
2
O.
2
O.
2
O.
2
Absolute Transducers
The Absolute Transmitter is typically used if the amplifier is exposed to water, e.g. on open deck.
The Absolute Transmitter is available in 2 ranges: 0 - 20 and 0 - 35 mH
10 mH
consideration when choosing the transducer.
A transducer with an effective range larger than the tank height should be selected.
O less than the nominal range because of the atmospheric pressure which must be taken into
2
O. In practice this means
2
11
Reference Manual MAS2600: Ordering Information
Ed 21 December 2014
Measuring Ranges
MAS2600 -XXX-XX-X/XX
Gauge Transmitter
The MAS2600 Gauge Transmitter is supplied in 4 ranges. In the programmable amplifier the measuring range is divided into 8 sub-ranges and operated by means of the range select switch.
The transmitter output signal can be adjusted to 20 mA within the sub-ranges as of the table below.
Range
no.
Typ e 1:
0 - 3.5 mH2O
Typ e 2:
0 - 7.0 mH2O
Tran sducer Type
Typ e 3:
0 - 16.0 mH2O
Typ e 4:
0 - 35.0 mH2O
1 0.20 - 0.37 mH2O 0.20 - 0.30 mH2O 0.50 - 0.75 mH2O 1.00 - 1.90 mH2O
2 0.37 - 0,54 mH
3 0,54 - 0.73 mH2O 0.50 - 0.70 mH2O 1.00 - 1.50 mH
4 0.73 - 1.10 mH2O 0.70 - 1.10 mH
5 1.10 - 1.92 mH2O 1.10 - 1.80 mH
6 1.92 - 3.10 mH2O 1.80 - 3.00 mH
7 3.10 - 3.50 mH2O 3.00 - 4.80 mH
8 Not Applicable 4.80 - 7.10 mH
O 0.30 - 0.50 mH
2
O 0.75 - 1.00 mH2O 1.90 - 2.80 mH2O
2
O 2.80 - 3.90 mH2O
2
O 1.50 - 2.50 mH2O 3.90 - 5.80 mH2O
2
O 2.50 - 4.00 mH2O 5.80 - 9.90 mH2O
2
O 4.00 - 6.00 mH2O 9.90 - 15.30 mH2O
2
O 6.00 - 10.00 mH2O 15.30 - 25.10 mH2O
2
O 10.00 - 16.00 mH2O 25.10 - 35.60 mH2O
2
Absolute Transmitter
The MAS2600 Absolute Transmitter is available in two ranges.
The output signals are calibrated as follows:
12
Tran sducer Type
4 0.8 - 3.5 bar abs
7 0.8 - 2.0 bar abs
MAS2600: Ordering Information Reference Manual
MAS 2600 Amplifier box
Flange mounted
G02 2P013
Sensor pos. above
lowest point
Tankheight
Vent pipe hei ght
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
Tamb.: -40 to +85 °C
I 45 mAK=<
2600
December 2014 Ed 21
Selecting the Measuring Range
When selecting the measuring range it is important to consider the tank height, vent pipe height,
the tank type and the specific gravity (SG) of the tank contents.
The transducer measures the height of the fluid from the transducer diaphragm to the surface of the
fluid, including the fluid in the vent pipe.
To ensure measuring accuracy a transducer type within the range no. 4, 5, 6, 7 and 8 is recommended.
Guidelines for selection of transducer measuring ranges are set out in the following.
Basic Rules
1. The selected measuring range must be larger than the tank height.
2. The selected measuring range must be larger than: (tank height + vent pipe height) / 2
Example:
Tank height = 6 m
Vent pipe height = 14 m
1. The selected measuring range must be larger than 6 m due to the height of the tank.
2. The selected measuring range must be larger than (6 + 14) / 2 = 10 m due to the total height of
the tank and the vent pipe combined.
Select a transducer with a measuring range of 16 mH
than 10 m.
Turn the range select switch on the amplifier to range No. 7.
Normally the selection of transducer, range select and calibration are done by Marine Tank Management.
Special consideration applies to e.g. forepeak tanks and draft measuring when selecting the measuring range of the transducer.
If the transducer is installed in tanks which may have excessive dynamic stresses such as e.g. high
pump pressure, long bottomed tanks with a risk of sloshing etc., contact Marine Tank Management.
O as this is the next measuring range larger
2
13
Reference Manual MAS2600: Ordering Information
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
Tamb.: -40 to +85 °C
I 45 mAK=<
2600
MAS2600 amplifier box
Vent pipe min. 1”
Weather deck
Min. Draft
Class approved
sea valve
Sensor pos. above
ships hull
Ships hull
Ed 21 December 2014
Forepeak Tank
If transducer measuring range > tank height: Select the next measuring range.
Example:
Tank height 12 m.
Based on the tank height a transducer with a measuring range of 16 mH
O should be selected.
2
However, due to the dynamic conditions in the forepeak tank, a transducer with a measuring range
of 35 mH
O, i.e. the next in line, should be selected.
2
Turn amplifier range select switch to range No. 6.
Draft
Transducer measuring range > max. draft minus sensor position.
This rule applies provided the transducer is mounted in accordance with the installation drawing for
draft transmitters (vent pipe min. 1"). The sensor may be mounted directly on the sea valve with an
air release valve depending on ship type and environment, always consult Marine Tank Management
for proper installation guidance.
14
MAS2600: Ordering Information Reference Manual
December 2014 Ed 21
Temperature Sensor
MAS2600 -XXX-XX-X/XX
The transducer can be supplied with a built-in Pt100 temperature sensor. The temperature sensor
will only give a proper reading, if the transducer is an internally mounted type.
Temperature Sensor
0 Without temperature sensor.
1 With temperature sensor.
15
Reference Manual MAS2600: Ordering Information
Ed 21 December 2014
Cable
MAS2600 -XXX-XX-X/XX
Two types of transducer cables are available. The standard cable for applications with temperatures
up to 80C, and high temperature cable for applications with temperatures up to 125C. The transducer cable is delivered in whole meters.
To make the MAS2600 transmitter easy to install, and for later service purposes, the transducer cable
should be as short as possible, though considering the position of the transducer and amplifier box.
Note! Maximum cable length:
Safe area
Standard cable 300 m
High temperature cable 300 m
Hazardous area
Standard cable 44 m
High temperature cable 34 m
16
MAS2600: Ordering Information Reference Manual
Bulkhead
Tank bottom
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
T
amb.: -40 to +85 °C
I 45 mA
K=
<
2600
Tan k t op
125.0
160.0
38.0
55.0
40.0
45.0
December 2014 Ed 21
Mounting Methods
MAS2600 -XXX-XX-X/XX
Brackets for Internal Mounting (dwg no. P022P010)
The brackets are U-shaped and manufactured of 2 mm ASTM 316L plated steel. Diameter of mounting holes: 11.5 mm. The transducer is secured by means of a spring fitted into two holes in the “U”
shape, and can be mounted/dismounted without the use of tools.
When installing in hazardous areas the cable must be protected by a steel pipe welded to the tank.
Also consider not to install to close the pump inlets.
Note! Internal mounting in service tanks is not recommended due to limited possibilities to per-
form service and maintenance.
17
Reference Manual MAS2600: Ordering Information
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
T
amb.: -40 to +85 °C
I 45 mA
K=
<
2600
Bulkhead
Tan k t op
Tank bottom
34.0
26.0
40.0
24.0
41.0
26.0
1" Thread
Ed 21 December 2014
Pole Mounting (dwg no. P022P011)
The weldable collar and the nut are manufactured of ASTM 316L steel. The gaskets are made of
nitrile rubber.
Note! Max torque 20 Nm (slightly tighten by the hand + 1/8-1/4 turn).
Remember the gasket.
18
MAS2600: Ordering Information Reference Manual
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
Tamb.: -40 to +85 °C
I 45 mAK=<
2600
Ta nk t op
Ta nk b ott om
Bu lk he a d
25 ,0
55,0
80 , 0
34 .0
26,0
24 . 0
41,0
26 ,0
December 2014 Ed 21
1” Pipe End Mounting (dwg no. P022P015)
The thread collar and the nut are manufactured of SS 316L steel. The gaskets are made of nitrile rubber.
Note! Max torque 20 Nm (slightly tighten by the hand + 1/8 to 1/4 turn).
Remember the gasket.
19
Reference Manual MAS2600: Ordering Information
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
Tamb.: -40 to +85 °C
I 45 mAK=<
2600
Ta nk t op
Tank bo tt om
Bulkhead
19, 5
D
k
d
b
Ed 21 December 2014
Flange Mounting (dwg no. P022P013)
The standard transducer is supplied with DN25, DN40 or DN50 PN16 DIN2527 flange manufactured
of ASTM 316L steel.
Flange Bolts
DN
D
mm
25 115 16 85 4 M12 14
40 150
50 165 18
Note! Maximum torque 20 Nm (slightly tighten by the hand + 1/8 to 1/4 turn).
Remember the gasket.
B
mm
K
mm
No. of bolts
16 110 4
125 4
Thread
diameter
M16 18
M16 18
d
mm
20
MAS2600: Ordering Information Reference Manual
Bulkhead
Ta nk b o tto m
Ta nk t op
TWO WIRE TRANSMITTER
2600 SERIES
90-C.95948
T5
Cint = 10 nF
C
CERTIFICATE REF.:
4-20 mA
Lint = 20 uH
x
iEEX
a
MARINE AUTOMATION DENMARK
S/N:
Umax = 33 V
T
amb.: -40 to +85 °C
I 45 mAK=<
2600
H
December 2014 Ed 21
Flexible Rubber Tube Mounting (dwg no. P022P001)
A top flange made of ASTM 316L connected to rubber tube by a tightening clip using a special tool.
The opposite hose end covers the transducer body and is fixed by a tightening clip.
Note! When ordering this mounting type always specify the length for the measurement of H
(see picture above).
21
Reference Manual MAS2600: Ordering Information
Ta nk b ot to m
H
Bulkhead
Lint = 20 uH
CERTIFICATE REF.:
4-20 mA
Tank top
x
S/N:
MARINE AUTOMATION DENMARK
Umax = 33 V
90-C.95948
TWO WIRE TRANSMITTER
Cint = 10 nF
XEEi
a
T5C
2600 SERIES
I 45 mA
amb.: -40 to +85 °C
<=K
T
2600
Ed 21 December 2014
Flexible PTFE Tube Mounting (dwg no. P022P021)
A top flange made of ASTM 316L connected to a Stainless Steel braided PTFE tube by fittings fixed to
the tube by using special tools. A fitting in the opposite tube end is fixed to the transducer by means
of nut and ferrules. Minimum hose bending radius is 130 mm.
Note! When ordering this mounting type always specify the length for the measurement of H
(see picture above).
Note! This mounting type can only be assembled by Marine Tank Management because it
requires special tools. The customer can exchange the MAS2600 transmitter by ordering a
G022B085 and a G022B082 together with the new MAS2600 transducer. It must clearly
be specified that it is a replacement for an MAS2600 XXX-XX-P/XX.
22
MAS2600: Ordering Information Reference Manual
Ta nk b ot to m
Bulkhead
Tank top
4-20 mA
CERTIFICATE REF.:
Lint = 20 uH
x
EE
X
2600
amb.: -40 to +85 °C
I 45 mA
MARINE AUTOMATION DENMARK
TWO WIRE TRANSMITTER
90-C.95948
Umax = 33 VCint = 10 nF
Cai
T5TS/N:
<=K
2600 SERIES
December 2014 Ed 21
DN25 flange with 1” ball valve (dwg no. P022P019)
Flange, valve and nut are manufactured of ASTM 316L steel. The gaskets are made of nitrile rubber.
Note! Max torque 20 Nm (slightly tighten by the hand + 1/8 to 1/4 turn).
Remember the gasket.
23
Reference Manual MAS2600: Ordering Information
Deck box -165B9035
Ed 21 December 2014
Amplifier Box
MAS2600 -XXX-XX-X/XX
The MAS2600 amplifier box is manufactured of polyester, which has the strength and stability of alu-
minium, insulation and resistance properties of plastics. Color code RAL 7000.
The amplifier box is protected to the level of IP 56 and must be mounted outside the tank, e.g. in the
engine room or other dry areas.
When the amplifier box is mounted on open deck with the risk of being drenched it is strongly rec-
ommended to mount the amplifier box inside the deck box 165B9035. To further reduce the exposure of water place the amplifier box to the center of the vessel.
Amplifier Box
0 Without amplifier box.
1 Standard box with PG 11/PG 11 cable glands. For cable diameter 5 -10 mm
2 Standard box with PG 11/PG 13.5 cable glands. For cable diameter 6-12 mm.
3 Standard box with PG 11/PG 16 cable glands. For cable diameter 10-14 mm.
5 Standard box with PG 13.5/PG 13.5 cable glands. For cable diameter 6-12 mm.
24
MAS2600: Ordering Information Reference Manual
December 2014 Ed 21
Amplifier PCB
MAS2600 -XXX-XX-X/XX
The PCB is available in different types for the different transducers.
Amplifier PCB
0 Without amplifier PCB.
P Programmable output range. The amplifier can be calibrated to 4-20 mA output in
whatever range wanted within the transducer range. Calibration is made by means of
dip switches and potentiometers.
D Differential output range. The output can be adjusted to 12 mA output with no pres-
sure applied. With pressure or vacuum, the output goes against 20 mA and 4 mA
respectively. Full-scale and zero point calibration by means of software, e.g. tank
monitoring software.
Amplifier PCB
25
Reference Manual MAS2600: Ordering Information
Ed 21 December 2014
26
MAS2600: Intrinsically Safe Installation Reference Manual
December 2014 Ed 21
Intrinsically Safe Installation
Description of the Ex safety information and
Intrinsically Safe Installation
MAS2600
27
Reference Manual MAS2600: Intrinsically Safe Installation
Ed 21 December 2014
28
MAS2600: Intrinsically Safe Installation Reference Manual
December 2014 Ed 21
Intrinsic Safety
When connecting equipment in hazardous areas, certain requirements must be fulfilled to comply to
the equipment safety certification and cable installation. There are requirements both for the equipment in the hazardous area on deck and for the associated apparatus in the nonhazardous area.
Safety Certifications
The MAS2600 Level Transmitter is intrinsically safe and meets the requirements of all the major classification societies. The MAS2600 has the following safety Ex-certifications:
• ATEX: II 2(1) G Ex ia IIC T4
• IECEx: Ex ia IIC T4
• INMETRO: Ex ia IIC T4
The MAS2600 is certified by UL international Demko A/S (certificate DEMKO 11 ATEX 146506X and
IECEx Certificate of Conformity no IECEx ULD 10.0013X) and by UL do Brazil Certificações
no UL-BR 12.0116X).
(certificate
Intrinsic Safety Principle
Intrinsic safety is based on the principle of restricting electrical energy available in hazardous-area
circuits, so that any sparks or hot surfaces, that may occur as a result of electrical faults in components, have too low energy content to cause ignition.
An intrinsic safe environment allows the crew or the service personnel to safely maintain the equipment while the ship is in operation.
Precautions are necessary to maintain in safe environment. Precautions related to installation and
special considerations for safe use are to be found on page 31.
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Reference Manual MAS2600: Intrinsically Safe Installation
Ed 21 December 2014
Intrinsically Safe Installation
The MAS2600 is designed for use in an approved intrinsically safe installation. The amplifier is fitted
with a label describing the IS category:
Item Explanation
S/N Serial number - production year
Ex identification according to guideline 94/9/EC (ATEX)
II Equipment group II
2(1) Sensor mounted in zone 0 and amplifier in zone 1
Ex ia Denotes the type of protection intrinsic safety, i.e. the system is incapable of
causing ignition in normal operation or with any combination of up to two
faults applied. This category will be adequate for use in zone 0, 1 and 2.
IIC Denotes the group of gases
T4 Denotes the maximum surface temperature classification specified (T4: 135 C)
Tamb Denotes the minimum and maximum ambient temperature.
When calculating ambient temperature the effect from external source of heating shall be included.
Relevant intrinsic safety certificates to be supplied with the system units.
The certification of electric apparatus as intrinsically safe requires the apparatus to be designed and
tested in accordance with approved drawings and the apparatus to be installed in accordance with
approved block schematic diagrams.
30
MAS2600: Intrinsically Safe Installation Reference Manual
December 2014 Ed 21
Installation and Special Considerations for Safe Use
Before installing intrinsically safe units within an approved installation, it is essential to ensure that
there are no deviations from the conditions of the order or the requirements of the approved block
schematic diagram and the following related instructions:
1. No circuits other than those shown on the drawing are permitted. There must be no intercon-
nection to any other circuits.
2. The intrinsically safe cabling must not be connected to non-intrinsically safe circuits, through
any plug, socket or other form of electric connector containing the cable.
3. Adequate precautions must be taken to prevent danger arising from the charging of the intrin-
sically safe circuit by the contact leakage or inductance from any other circuit. To prevent static
electricity do not rub cables or amplifier housing with a dry piece of cloth.
4. The intrinsically safe circuit must be adequately insulated from earth in the hazardous area and
the insulation of all cabling must be at least 500 V r.m.s.
5. The safety barrier must be placed in a safe area and be mounted within a protective enclosure
with a protection degree, at least equal to IP 20.
6. The cable between the safety barrier and the amplifier should be provided with a cable shield
which is connected to earth at the safety barrier. The impedance between the safety barrier
earth rail and a secure bond to the hull must not exceed 1 ohm.
7. Safe area apparatus must not be supplied from, nor contain, a source of potential with respect
to earth under normal or abnormal conditions exceeding 250V r.m.s. or 250 V DC.
8. The inductance/resistance ratio, total inductance and total capacitance, of the cable and the
amplifier must not exceed the values stated by the manufacturer of the approved safety barriers.
9. Prevent impacts on the sensor housing to avoid sparks. Do not mount or dismount the sensor
when there is a hazardous condition in the tank. Be sure the tank is vented and gas free.
10. Be sure that the amplifier box is dry and clean before the lid is mounted. The four screws in the
lid should be tightened fully.
11. Be sure to order and use sensor cable with the right temperature specification. Check that the
ambient temperature for the entire cable run do not exceed the max limit for the cable.
12. MAS2600 contain no repairable parts. Repairing or fixing the circuit or replacing components
may impact the intrinsic safety.
13. The sensor cable shall remain in one piece from sensor to amplifier box.
Reference is made to manufacturer instructions of safety barriers and to the rules in force at the time
in question concerning intrinsically safe area installation.
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Reference Manual MAS2600: Intrinsically Safe Installation
Ed 21 December 2014
The entity concept allows inter-connections of intrinsically safe apparatus to associated apparatus
not specifically examined in combination as a system. The approved values of maximum open circuit
voltage and maximum short circuit current and maximum output power, for the associated apparatus must be less than or equal to the maximum safe input voltage (U
), and maximum safe input power (Pi) of the intrinsically safe apparatus. In addition, the approved
(I
i
), maximum safe input current
i
maximum allowable connected capacitance of the associated apparatus must be greater than the
sum of the inter-connecting cable capacitance and the unprotected internal capacitance (C
) of the
i
intrinsically safe apparatus, and the approved maximum allowable connected inductance of the
associated apparatus must be greater than the sum of the inter-connecting cable inductance and the
unprotected internal inductance (L
) of the intrinsically safe apparatus.
i
Grounding
32
MAS2600: Installation Reference Manual
December 2014 Ed 21
Installation
Installation and Handling the MAS2600
33
Reference Manual MAS2600: Installation
Ed 21 December 2014
Handling
The MAS2600 transducer is a highly sensitive electronic piece of equipment and proper handling is
most important.
To avoid damaging the transducers:
• NEVER lift by the cable if transducer is mounted with fittings.
• NEVER remove the protection cap in front of the diaphragm before installation.
• NEVER knock the transducer.
• NEVER apply pressure to the diaphragm in any way whatsoever, whether using fingers, tools or
sharp objects.
• NEVER use sharp objects when cleaning the diaphragm.
• NEVER submerge the cable so that the breather tube is under water.
• NEVER bend the cable in a radius of less than 90 mm.
34
MAS2600: Installation Reference Manual
Shield bracket
Do not fasten
Breather tube
Transducer cable
1/8” NPT fitting for
breather tube
4-20 mA signal cable
Breather hose
Terminal block
for Pt100
element
too tight!
December 2014 Ed 21
Installation
As part of the installation please check that:
• the serial numbers on the transducer, amplifier and lid of amplifier box complies. The serial num-
bers are found on the S/N on the amplifier box at the bottom line and on the transducer S/N on
the range label.
• the transducer is fitted in the correct tank.
• the transducer is correctly connected to the amplifier.
• all cable glands are properly secured to the amplifier box. Use torque of 6 Nm.
• the amplifier box is mounted in such a way that the breather tube cannot be flooded.
• the cable is fastened with cable clips with a distance of max. 50 cm.
• the cable isolation is not damaged (cracks, weld spatter, burns etc.).
• shut-off valves can be either ball valves or other valves not generating over pressure exceeding 4
x the transducer range between valve seat and transducer when the valve is closed.
Note! The white and brown wires in the transducer cable are only used when a Pt100 sensor is
built into the transducer.
As for flange mounted applications it is recommended that a ball valve is fitted in the front of the
transducer to facilitate testing and calibration of the transmitter.
The power cable / 4 - 20 mA signal cable shall be a cable with solid insulation; the minimum wire insulation must be 0.25 mm for each wire. Using a shielded cable for the 4-20 mA signal, the shield shall
be connected at the earth terminal of the I/O system (e.g. simple gauge or tank monitoring system)
and not in the amplifier box. Using a shielded cable ensures maximum protection against electrical
noise.
If the amplifier box is installed in an area with over pressure or negative pressure in relation to the
atmospheric pressure in the tank, the breather tube must be directed to an area with atmospheric
pressure equal to the pressure inside the tank. This applies to gauge transmitters only. For absolute
transmitters this has no affect, due to the reference to absolute vacuum and not atmospheric pressure. This is also the reason why no breather tube is necessary.
35
Reference Manual MAS2600: Installation
Ed 21 December 2014
36
MAS2600: Testing and Recalibration Reference Manual
December 2014 Ed 21
Testing and Recalibration
Testing and Recalibration of the MAS2600
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Reference Manual MAS2600: Testing and Recalibration
Ed 21 December 2014
Testing
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
Before dispatch, the MAS2600 transmitter is calibrated in accordance with the requirements specified in the order.
The transducer and the amplifier are calibrated together and must, therefore, always be used
together.
A programmable measuring range transmitter will in conditions of no pressure (empty tank) give an
output signal of 4 mA, and in conditions of maximum pressure an output signal of 20 mA.
The transmitter should be tested by applying to the transducer a known pressure from a calibrator
and reading the equivalent milliamp signal on a milliamp meter.
The above-mentioned applies to the gauge transmitter only. For absolute transmitters the output
signal will be higher than 4 mA, because it is calibrated for 4 mA at 0.8 bar abs. The output signal will
typically be 5-7.5 mA in atmospheric pressure, depending on the transducer range and the actual
atmospheric pressure. Maximum output signal 20 mA, will be at the transducers absolute range.
38
MAS2600: Testing and Recalibration Reference Manual
December 2014 Ed 21
Recalibrating Gauge Transmitter using Pressure on the
Transducer
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
When recalibrating the MAS2600 Gauge Transmitter a pressure calibrator with a range of -1 to 3.5
bar should be used. It should have an accuracy of 0.05% FS or better, as well as a 4½ digit milliamp
meter.
1. Set the calibrator to pressure mode.
2. Connect the pressure calibrator to the transducer via MAS2600 Test Cup, type G022S100
(DPI610 and DPI603) or type G022S103 (DPI802P CAL KIT).
3. Check that the range select switch on the amplifier is correctly set.
4. In conditions of no pressure (atmospheric pressure) the output signal should be adjusted to 4.00
mA on the zero potentiometer.
5. Increase the pressure to maximum and adjust the output signal to 20.00 mA on the span poten-
tiometer.
6. Remove the pressure and check the zero point
7. Check the linearity at 0-25-50-75 and 100% of the measuring range.
8. If necessary, repeat the steps 4 to 7.
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Reference Manual MAS2600: Testing and Recalibration
Ed 21 December 2014
Recalibrating Gauge Transmitter using Vacuum (for gauge
transmitters only)
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
An internally mounted transducer can also be recalibrated by using vacuum.
1. Check that the tank is empty.
2. Check that the range select switch on the amplifier is correctly set.
3. Set the calibrator to vacuum mode.
4. Connect the hose from the calibrator to the breather tube from the transducer cable.
5. In conditions of no pressure the output signal should be adjusted to 4.00 mA on the zero poten-
tiometer.
6. Increase the vacuum equal to the maximum height of the fluid (water gauge) and adjust the out-
put signal to 20.00 mA on the span potentiometer.
7. Remove the vacuum and check the zero point.
8. Check the linearity at 0-25-50-75 and 100% of the measuring range.
9. If necessary, repeat the steps 5 to 8.
Note! If the calibrated maximum water gauge is greater than the maximum water gauge that
can be generated by the vacuum calibrator, the proportional mA output signal equal to
the maximum vacuum signal should be calculated.
Example:
If the full-scale of the transmitter is 15 mH
7.5 mH
15 mH
7.5 mH
The span potentiometer is adjusted so that the output signal shows 12 mA at 7.5 mH2O.
O, the mA output signal at 7.5 mH2O is calculated as:
2
O = 20 mA and 0 mH2O = 4 mA
2
O = 4 + ((20 - 4) * 7.5) / 15 = 12 mA
2
O, and the maximum capacity of the vacuum calibrator is
2
40
MAS2600: Testing and Recalibration Reference Manual
December 2014 Ed 21
Recalibrating the Absolute Transmitter using Pressure on
the Transducer
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
When recalibrating the MAS2600 Absolute Transmitter a pressure calibrator with a range of
-1 to 3.5 bar should be used. It should have an accuracy of 0.05% FS or better, as well as a 4½ digit
milliampmeter. If a calibrator without reference transmitter is used, the atmospheric pressure must
be known to calculate the correction.
Atmospheric pressure and Transducer range to be entered into the formulas as mbar.
1. The calibrator with the output selector switch set to pressure mode is connected to the
MAS2600 transmitter via MAS2600 Test Cup, type G022S100 (DPI610 and DPI603) or type
G022S103 (DPI802P CAL KIT).
2. Check the transducer range. The transducer range is indicated on the amplifier inside the box.
3. Calculate output signal in conditions of no pressure (atmospheric pressure), using below for-
mula. The output signal should be adjusted to the calculated value on the zero potentiometer.
mA at Atmospheric pressure = 4 + (16
4. Calculate the pressure for maximum output signal, using the following formula.
mbarg at 20 mA = Trd. range - Atm. press
Increase the pressure to calculated pressure and adjust the output signal to 20.00 mA on the
span potentiometer.
5. Remove the pressure and check the zero point.
6. Check the linearity at 0-25-50-75 and 100% of the measuring range.
Output signal at different pressures P can be calculated, using the following formula.
mA at P mbarg = 4 + (16
7. If necessary, repeat the steps 3 to 6.
(Atm. press - 800 + P) / (Trd. range - 800))
*
(Atm. press - 800) / (Trd. range - 800))
*
Example:
If the range of the transducer is 3.5 bar abs and the atmospheric pressure is 1005 mbar.
Calculated output at atmospheric pressure:
mA at Atm.press = 4 + (16
Calculated applied pressure for maximum output:
mbarg at 20 mA = 3500 - 1005 = 2495 mbarg
Calculated pressure at 50% of the transducer range:
mA at P mbarg = 4 + (16
(1005 - 800) / (3500 - 800)) = 5.215 mA
*
(1005 - 800 + 1750) / (3500 - 800)) = 15.585 mA
*
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Reference Manual MAS2600: Testing and Recalibration
Ed 21 December 2014
42
MAS2600: Maintenance and Troubleshooting Reference Manual
December 2014 Ed 21
Maintenance and Troubleshooting
43
Reference Manual MAS2600: Maintenance and Troubleshooting
Ed 21 December 2014
Maintenance
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
Marine Tank Management recommends that the following to be checked annually:
1. Visual inspection of the cable, transducer and amplifier.
2. Compare signal with e.g. manual readings, and if necessary perform a zero and full-scale calibra-
tion.
44
MAS2600: Maintenance and Troubleshooting Reference Manual
December 2014 Ed 21
Trouble Shooting
Caution! Please observe that testing and recalibration of transmitters mounted in hazardous
areas shall be carried out by Ex qualified personnel.
If the MAS2600 transmitter is not functioning in accordance with Marine Tank Management instructions, check that:
1. the 24 VDC power supply has been correctly connected, and is between 17-33 VDC.
2. the 4 - 20 mA output signal is functioning (compared with e.g. hand sounding).
3. the transducer cable has been correctly fitted and the shield connected to the shield terminal in
the amplifier box.
4. the diaphragm has not been damaged.
If this does not succeed, fill in the test sheet on page 46 and submit this to our Service department at
Marine Tank Management.
When contacting our Service department please specify the serial numbers of transducer, amplifier
and box.
The test sheet will be examined to see whether it can be established that the transmitter is broken or
not.
When returning a defective MAS2600 transmitter, please ensure that:
• The transducer diaphragm is protected against mechanical damage.
• Both the transducer and the amplifier are returned.
• A detailed description of the fault is enclosed.
45
Reference Manual MAS2600: Maintenance and Troubleshooting
Ed 21 December 2014
MAS2600 Test Sheet
Name AT T.
Emerson Process Management
Marine Tank Management
Damcos A/S, Service Department
FAX.: +45 5578 7272
Ship name Yard NB no.
MAS2600 Transducer serial no. MAS2600 Amplifier serial no.
Tank na me
Liquid in tank HFO DO Ballast Other
The tank is Full Empty Other
Step Result Unit Limits
1 Measure voltage between terminal 5 and 6. V DC Voltage should be in the range 17 to 22 V DC.
Check power supply.
2 Measure nipple voltage between terminal 5
and 6.
3 Measure sensor excitation voltage between
terminal 7 and 10.
4 Measure sensor excitation voltage between
terminal 8 and 9.
5 Measure current in supply lead to terminal
5.
6 Measure current in supply lead to terminal
6.
7 Measure sensor resistance with sensor
cable unconnected between:
Terminal 7 to cable shield. M Ohm
Terminal 8 to cable shield. M Ohm
Terminal 9 to cable shield. M Ohm
Terminal 10 to cable shield. M Ohm
8 Measure sensor bridge resistance with sen-
sor cable unconnected between:
Terminal 7 to terminal 9. K Ohm
Terminal 7 to terminal 10. K Ohm
Terminal 8 to terminal 9. K Ohm
Terminal 8 to terminal 10. K Ohm
Terminal 9 to terminal 10. K Ohm
9 Visual inspect the transmitter for:
- Damages on the cable
- Sharp bends on the cable
- Moisture/liquids in the breather tube
- Damages on the diaphragm
10 Comments
V AC Voltage must not exceed 2 V AC.
Check power supply.
V DC Voltage should be in the range 3.0 and 6.2 V
DC.
mV DC Voltage should be in the range -15 to 100 mV
DC.
mA DC Current should be in the range 4 to 20 mA
and the same value as measured in point 6. if
not the amplifier may be defect.
mA DC Current should be in the range 4 to 20 mA
and the same value as measured in point 5. if
not the amplifier may be defect.
If the measured resistance is less than 1 M
Ohm the sensor is considered defect.
If the measured resistance is less than 1 K
Ohm or greater than 50 K Ohm the sensor is
considered defect.Terminal 7 to terminal 8. K Ohm
46
MAS2600: Index Reference Manual
December 2014 Ed 21
Index
Numerics
1” Pipe End Mounting.......................................... 19
A
Absolute Transducers .......................................... 11
Absolute Transmitter........................................... 12
Amplifier ............................................................... 5
Amplifier Box....................................................... 24
Amplifier PCB ...................................................... 25
Application............................................................ 5
ATEX.................................................................... 29
B
Brackets for Internal Mounting ............................ 17
C
Cable................................................................... 16
D
Description............................................................ 5
DN25 flange with 1” ball valve............................. 23
F
Flange Mounting ................................................. 20
Flexible PTFE tube mounting 125ºC ..................... 22
Flexible rubber tube mounting 80 ºC ................... 21
G
Gauge ................................................................. 11
Gauge Transmitter .............................................. 12
H
Handling ............................................................. 34
High Temperature Gauge Transducers ................ 11
Mounting Methods .............................................. 17
O
Operation .............................................................. 5
Ordering Information........................................... 10
P
Pole Mounting ..................................................... 18
Power Supply......................................................... 7
R
Recalibrating Gauge Transmitter using Test Cup type
G022S100............................................................ 39
Recalibrating Gauge Transmitter using Vacuum .. 40
Recalibrating the Absolute Transmitter using Test
Cup type G022S100............................................. 41
S
Safety Approvals.................................................. 29
Selecting Measuring Range.................................. 13
Selecting Transducer Type................................... 11
T
Technical Specification .......................................... 6
Temperature Sensor ............................................ 15
Test Sheet............................................................ 46
Testing ................................................................ 38
Transducer............................................................. 5
Transducer Type .................................................. 11
Transmitter Dimensions ........................................ 7
Transmitter is not functioning.............................. 45
Trouble Shooting................................................. 45
Type Approvals ...................................................... 5
I
Installation .......................................................... 35
Intrinsically safe ............................................ 30
Intrinsic Safety..................................................... 29
Intrinsically Safe .................................................... 5
Intrinsically Safe Installation ................................ 30
M
Maintenance ....................................................... 44
Measuring Ranges ............................................... 12
47
Reference Manual MAS2600: Index
Ed 21 December 2014
48
Emerson Process Management
Damcos A/S
Aaderupvej 41
DK-4700 Naestved
T +45 5578 7200
F +45 5578 7272
www.EmersonProcess.com/mtm
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.EmersonProcess.com/mtm
©2014 Emerson Process Management. All rights reserved.
The Emerson logo is a trademark and service mark of Emerson Electric Co. , Rosemount® and
the Rosemount logotype are registered trademarks of Rosemount Inc., Damcos and the Damcos logotype are trademarks of Damcos A/S. TankRadar, LevelDatic and MAS 2600 are trademarks of Rosemount Tank Radar AB. Damcos A/S and Rosemount Tank Radar AB are members
of the Emerson Process Management family of companies. All other marks are the property of
their respective owners.
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
Damcos A/S or Rosemount Tank Radar AB. We reserve the right to modify or improve the
designs and specifications of our products at any time without notice.
Damcos A/S and Rosemount Tank Radar AB accepts no responsibility for any errors that may
appear in this publication.
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