Samson Media 6 Z Documento tecnico
Translation of original instructions
EB 9527-3 EN
Firmware version 3.12
Edition October 2015
Differential Pressure Meters
Media6 · Media6 Z
Media6 with mounted valve block
Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesser[email protected]).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.
Denition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
2 EB 9527-3 EN
Contents
EB 9527-3 EN 3
1 Safety instructions .........................................................................................5
2 Firmware version ..........................................................................................6
3 Design and principle of operation ..................................................................8
3.1 Technical data .............................................................................................10
4 Installation..................................................................................................12
4.1 Arrangement of devices for ow rate measurement.........................................12
4.2 Media6 indicating unit ................................................................................12
4.3 Differential pressure lines..............................................................................14
4.4 Orice ange (orice plate assembly)............................................................14
4.4.1 Accessories .................................................................................................15
4.4.2 Valve block..................................................................................................15
4.4.3 Shut-off and equalizing valves ......................................................................16
4.4.4 Compensation chambers ..............................................................................16
4.4.5 Accessories for connection............................................................................16
5 Electrical connection ....................................................................................17
5.1 Device connector..........................................................................................18
6 Operation...................................................................................................19
6.1 Display and operating controls......................................................................19
6.1.1 Switching over to display mode.....................................................................20
7 Start-up ......................................................................................................22
7.1 Liquid level measurement..............................................................................22
7.2 Flow rate measurement.................................................................................22
7.3 Water drainage...........................................................................................23
8 Settings.......................................................................................................24
8.1 Write protection...........................................................................................24
8.2 Selecting the gas type...................................................................................24
8.3 Checking zero .............................................................................................25
8.4 Checking the measuring range (span)............................................................26
8.5 Adjusting limit contacts.................................................................................28
8.5.1 Max. lling limit during operation .................................................................28
8.5.2 Alarm contacts A1 and A2...........................................................................28
Contents
4 EB 9527-3 EN
8.6 Switching the LCD on and off........................................................................28
8.7 Ammeter function.........................................................................................29
8.8 Battery operation .........................................................................................29
9 Memory pen communication........................................................................30
9.1 Data transmission using a memory pen .........................................................30
9.2 Communication with computer ......................................................................32
10 Troubleshooting...........................................................................................33
11 Servicing explosion-protected devices ..........................................................35
11.1 Firmware update..........................................................................................35
11.2 Maintenance, calibration and work on equipment ..........................................36
12 Dimensions .................................................................................................37
EB 9527-3 EN 5
Safety instructions
1 Safety instructions
−The device is to be mounted, started up or operated only by trained and experienced
personnel familiar with the product. According to these mounting and operating instruc-
tions, trained personnel refers to individuals who are able to judge the work they are as-
signed to and recognize possible dangers due to their specialized training, their knowl-
edge and experience as well as their knowledge of the applicable standards.
−Explosion-protected versions of this device are to be operated only by personnel who has
undergone special training or instructions or who is authorized to work on explosion-pro-
tected devices in hazardous areas. See note in section11 on page35.
−Any hazards that could be caused in the device by the process medium or operating
pressure are to be prevented by taking appropriate precautions. To ensure appropriate
use, only use the device in applications where the operating pressure and temperatures
do not exceed the specications used at the ordering stage.
−The Media6 Differential Pressure Meter is not approved for measuring ammable gases
or liquids in hazardous areas of Zone 0.
−The device is designed for use in low voltage installations. For wiring and maintenance,
you are required to observe the relevant regulations concerning device safety and elec-
tromagnetic compatibility.
−Proper shipping and storage are assumed.
−Devices with a CE marking fulll the requirements of the Directives 2014/34/EU (ATEX)
and 2014/30/EU. The Declaration of Conformity is available on request.
−Replacement of defective printed circuit boards: SAMSON can provide replacement PCBs
programmed according to customer specications, if required.
The replacement of printed circuit boards in explosion-protected devices is not permis-
sible.
Oxygen service
When the device is used for oxygen service, make sure that the dp cell and any SAMSON
accessories (e.g. valve block) only come into contact with gaseous oxygen.
NOTICE
!
6 EB 9527-3 EN
Firmware version
2 Firmware version
Table1: Firmware versions
Firmware revisions
Old New
A 2.03/B 2.03 A 2.10/B 2.10
Limit contacts The limit contacts A1 and A2 are congured using software
to function as either min. or max. alarms. They can be con-
gured separately using the keys on the device.
Operating lling limit The operating lling limit (UCW) can be set at the keys on
the device independent from the limit contacts.
A 2.10/B 2.10 A 2.11/B 2.11
Error code The current output of Media6 is set to ≤3.6mA.
A2.11/B2.11 V3.02
LCD The LCD can be switched on and off using the and
keys (LCD ON or LCD OFF).
Gas and medium code The gas and medium code can contain max. 8 characters.
Error code Error code changed. Changed response when conrming
errors. Device errors are logged in the error history.
Operating mode New operating modes: counting ow rate, differential pres-
sure
Units for ow rate Units for ow rate are displayed in .../h or .../min.
Units for static pressure (PTANK) The following units were added:mbar, bar, kPa, psi,
mmH20, cmH20, mH20, inH20.
DP0 value Pressure for 4mA signal
LOAD reading LOAD reading replaced by reading of version no. V3.02
V3.02 V3.03
Display mode Counting ow rate operating mode: default display shows
meter reading.
V3.03 V3.04
Digital potentiometer Temperature control in LCD modied
V3.04 V3.10/index 02
Battery operation New power supply: battery operation
Operating mode New operating mode: level measurement in transportation
vehicles
Boot loader Firmware update
EB 9527-3 EN 7
Firmware version
Firmware revisions
Old New
V3.10 3.11
Battery operation Error remedied on changing to power-saving mode. Small
corrections made.
V3.11 V3.12
Error detection Detection and treatment of error codes 1 and 32768
changed.
8 EB 9527-3 EN
Design and principle of operation
3 Design and principle of oper-
ation
Differential pressure meters are used to mea-
sure and indicate differential pressure as
well as derived measured variables for gases
and liquids.
Measurement tasks
Liquid level measurement in stationary pres-
sure vessels and in pressure vessels on trans-
portation vehicles, in particular for cryogen-
ic gases, such as argon, oxygen, and nitro-
gen.
−Differential pressure measurement be-
tween ow and return ow pipe
−Pressure drop measurement across valves
and lters
−Flow rate measurement according to the
differential pressure method
The device mainly consists of the dp cell with
measuring diaphragm, range springs sized
according to the measuring span as well as
the indicating unit with two-wire transmitter
(4 to 20mA output signal) and an LCD. The
power supply UB is 12 to 36VDC. Option-
ally, battery operation1) with 9VDC, with-
out 4 to 20mA output signal.
The differential pressure ∆p=p1 – p2creates
a force at the measuring diaphragm (1.1),
which is opposed by the range springs (1.2).
The movement of the measuring diaphragm
and lever (1.3), which is proportional to the
differential pressure, is transmitted by the
elastic disk (1.4) out of the pressure chamber
and converted into an electric signal by the
travel sensor (2).
Based on the evaluation of the data saved in
the FRAM (4), the electric signal is processed
by a microprocessor (3). It controls both the
LCD (7) and the D/A converter (9) for the
output signal, which is issued as a 4 to
20mA two-wire transmitter signal at con-
nector A.
The serial interface (10) allows the device to
be congured with the TROVIS-VIEW soft-
ware using a special memory pen or a cable
connection to a computer. The user-specic
data are saved in the memory (FRAM) (4).
Data backup is also possible. The data re-
main saved until they are overwritten again.
This allows operating data to be easily ex-
changed on site between Media 6 and the
memory pen, and vice versa. The memory
pen can be programmed on a computer us-
ing the TROVIS-VIEW software.
The operating data allow the differential
pressure to be converted into values propor-
tional to the tank capacity or ow rate 2) and
displayed or issued as a 4 to 20mA signal.
The DIP switches (6) are used to select four
saved gas types and different write protec-
tion functions for saved data.
Three operating keys (5) are used to adjust
different operating functions (zero and span
adjustment, lling limit during operation,
limit contacts, and test function settings etc.)
as well as set different operating states (load
or save operating values).
1) Operating mode: liquid level measurement
2) Counting pulse (Media 6 Z)
EB 9527-3 EN 9
Design and principle of operation
Fig.1: Functional diagram
Min./max. alarm A1
Serial interface
Indicating unit with LCD
1Differential pressure cell
1.1 Measuring diaphragm
1.2 Range spring
1.3 Lever
1.4 Flexible disk
1.5 Diaphragm stem
2Travel sensor
3Microprocessor
4Data memory (FRAM)
5Operating keys
6 Four DIP switches (for select-
ing gas type, span protection
and write protection)
7Indicating unit with LCD
8Limit switch and pulse output
9D/A converter
10 RS-232 interface
Connector B
Min./max. alarm A2 or pulse
output (Media6Z)
Connector A
UB=12 to 36VDC
IA=4 to 20mA
FRAM
μP
dp cell
Valve block
with pressure
gauge
0
20
40 60
80
100
%
m3
#
7
6
5
3
2
1.1
1.2
9
8
10
1.5
4
1.4
1.3
1.2
1
p2p1
_+
10 EB 9527-3 EN
Design and principle of operation
3.1 Technical data
Table2: Technical data
All pressure in bar (gauge)·All errors and deviations are specied in % of the adjusted measuring span
Media6 Differential Pressure Meter
Measuring range in mbar 0 to
100
0 to
160
0 to
250
0 to
400
0 to
600
0 to
1000 1)
0 to
1600 1)
0 to
2500 1)
0 to
3600 1)
Adjustable measuring span in mbar
Class ±1% to
from –––≤400
≥100
≤600
≥150
≤1000
≥250
≤1600
≥320
≤2500
≥500
≤3600
≥720
Class ±1.6% to
from – – ≤250
≥125
<100
≥80
<150
≥120
<250
≥200 – – –
Class ±2.5%
to
from
<60
≥352)
<60
≥32
<125
≥50 ––––––
to
from
≤100
≥60
<160
≥160 –––––––
Nominal pressure PN 50, overloadable on one side up to 50 bar
Display LCD Ø 90mm
Characteristic Output and reading linear or square root extraction depending on operating
mode
Deviation from terminal-based
linearity
<±1.0% to <±2.5% (including hysteresis)
depending on measuring span selected
Sensitivity <0.25% or <±0.5% depending on measuring span selected
Effect of static pressure <0.03%/1 bar
Effect of ambient temperature
in the
range from –20 to +70°C
on zero
on span
<±0.2%/10K
<±0.2%/10K
Limit contacts Two congurable software limit contacts or one software limit contact acc. to
EN60947-5-6 and pulse output 5)
Control circuit, in 1% steps Specications corresponding to connected switching amplier 3)
Switching accuracy 1% based on MCN or SCN 4)
Dead band, approx. <0.6%
Pulse output 5) Max. possible counting frequency: 120 pulses/min or 7200 pulses/h 6)
Floating transistor contact for connection of external counter
Input voltage UDC 50V
Input current IDC 80mA
Residual current Ioff <0.1mA
Voltage drop at 10mA <3.5V
Voltage drop at 80mA <4.8V
Pulse length Ton 200ms
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