ISOIL ISOMAG ML 51 Specification sheet

OPERATING AND INSTALLATION MANUAL
CONVERTER
ML 51
ISOMAG
™
THE FRIENDLY MAG METER

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INTRODUCTION ________________________________________ 3
SYMBOLS USED IN THE MANUAL _________________________ 3
TECHNICAL CHARACTERISTICS __________________________ 4
OVERALL DIMENSION ___________________________________ 5
INTERNAL VIEW OF CONVERTER _________________________ 7
INPUT/OUTPUT _________________________________________ 8
VISUALIZATION PAGE ( WITH IF21 ) ______________________ 10
FLAGS INTERPRETATION AND LED ______________________ 11
FUNCTIONS___________________________________________ 13
ACCESS TO THE CONFIGURATION MENU _________________ 15
FUNCTIONS DESCRIPTION ______________________________ 17
ALARM MESSAGES, CAUSES AND ACTIONS TO BE TAKEN __ 22
ANOMALIES CODES____________________________________ 22
INDEX

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INTRODUCTION
Symbols Used in the manual
This manual is integral part of the product. Read carefully the instructions contained
since they give important indications for the safe use and maintenance.
Technical information and relative products in this manual could undergo modifications
without any previous notice.
The flow meter must be used for what it has been built for. The improper use, possible
tampering of the instrument or parts of it and substitutions of any not original
components, make the warranty to decay automatically.
The manufacturer is considered responsible only if the instrument it’s used in his original
configuration.
Reproduction of the present manual and of any possible software supplied with the instrument is
strictly forbidden.
ATTENTION
WARNING
PRECAUTIONS
DANGER ELECTRIC SHOC
K

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TECHNICAL CHARACTERISTICS
OPERATING TEMPERATURE
CONVERTER
Ambient Temp.
Min. Max
°C °F °C °F
-20* -4* 50 140
ELECTRIC CHARACTERISTICS
Classification of the instrument: class I, IP 67, category of installation II
Power supply
versions Power supply voltage Power supply frequency current max
Loop 4/20 18÷36 Vdc // 24 mA
4/20 disable 12 Vdc+/-10% CONSUMPTION 12 mA
ENVIRONMENTAL CONDITIONS OF USE
1. The instrument can be installed inside or outside buildings
2. Altitude: from –200 a 6000 m (from -656 to 19685 feet)
3. Humidity range: 0÷100% (IP 65)
Line voltage range: (see table on technical characteristics)
* For discontinuous use, the installation of a heatin
g
resistance is necessar
y

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OVERALL DIMENSION
127
129
168
124

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-
+
910
GROUNDING INSTRUCTIONS
For the correct operation of the meter it’s NECESSARY that sensor and liquid are
equipotential, so ALWAYS connect sensor and converter to the ground
INPUT/OUTPUT ISOLATION
1. Input/output are insulated up to 500V
CONVERTER POWER SUPPLY
Power su
pp
l
y
Before connecting the power supply, verify that
the mains voltage falls between the limits
indicated on the tag plate
ATTENTION: the converters on dc power
supply line are not protected against the
inversions of polarity.
For the wiring use only approved conductors,
with fireproof properties.
In the proximity of the instrument Provide a
circuit breaker that must be easily accessible
from the operator and clearly identified.
NOTE: characteristics of meter’s power supply, see
page 4

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123456789
10
11121314151617181920
-
E
C
+
SC B2 B1 SC
OUT1
Pow.
OUT
COILS
E1
E2
C
SC
4-20mA
ELECTRODES
+
-
Main Power supply
Pow.
OUT
INTERNAL VIEW OF CONVERTER
12345678910
11 12 13 14 15 16 17 18 19 20
Signalling LED with light:
interpretation at page 11
Socket for IF2
MAIN Power supply
T
ERMINAL BLOCKS OF CONVERTE
R

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CURRENT
LIMITER
+
-
Galvanic
BARRIER
MAIN
BOARD 9
10
CURRENT
SENSOR
REG.
POWER
SUPPLY
Galvanic
BARRIER
16
17
43V
INPUT/OUTPUT
ON/OFF OUT Opto-insulated output with collector and emitter
terminals floating and freely connectable
Maximum switching voltage: 40 Vdc
Maximum switching current: 10mA
Maximum saturation voltage between collector
and emitter @100mA: 1,2V
Maximum switching frequency 32 Hz
Maximum reverse current bearable on the input
during and accidental polarity reversion (VEC):
100mA
Insulation from other secondary circuits: 500 Vdc
Power supply/Out 4÷20mA
Working voltage : 18 ÷ 36 Vdc
This option allows using the converter like transmitter with technique " 2 wire": the current
4/20 beyond to give the measure also SUPPLY the converter . The MINIMUM value of current,
correspondent to "0" FLOW RATE is 4 mA .
Power Supply R_MAX (ohm)
21.6 (24V-10%) 300
24 400
26.4 (24V+10%) 500
30 680
36 950
MAX LOAD TABLE

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START UP AND MAINTENANCE OF THE INSTRUMENTS
Before starting up the instrument please verify the following:
Power supply voltage must correspond to that specified in the name plate
Electric connections must be done as described at page 7
Ground connections must be done
Verify periodically:
The integrity of the power supply cables, wiring and other electrical parts
connected
The integrity of the instrument’s housing (this must not have bruises or other
damages that may compromises the hermetical sealing)
The tightening of the sealing elements (cable glands, covers, etc.)
The mechanical fixing of the instrument on the pipe or on the wall stand

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Scale
Flow rate visualization
*Direct totalizer
*Reverse totalizer
A
lternate page
( 4sec. per pagina )
A
larms
Flow rate visualization
*Partial direct/reverse totalizer
Flow rate visualization
Speed of fluid
VISUALIZATION PAGE ( WITH IF21 )
* The maximum digit shown from the totalizer is 999999999 independently from the number
of selected decimal. Beyond this value the totalise are reset.
FUNZIONE DI “VALUTA” ATTIV
A
Push to change
visualisation
Push to see alarms
page
Push to change
visualisation