Emerson MAS2600 User Manual

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

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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.

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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

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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

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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.

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