ISOMAG ML 110 Specification sheet

OPERATING AND INSTALLATION MANUAL
CONVERTER
ML 110

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INTRODUCTION ......................................................................................... 3
SYMBOLS USED IN THIS MANUAL ............................................................... 3
TECHNICAL CHARACTERISTICS .................................................................. 4
INPUT OUTPUT ISOLATION ........................................................................ 4
ENVIRONMENTAL CONDITIONS OF USE ...................................................... 4
OPERATING TEMPERATURE ........................................................................ 4
ELECTRIC CHARACTERISTICS ..................................................................... 4
DIMENSIONS (PA6 HOUSING) .................................................................... 5
DIMENSIONS (ALUMINUM HOUSING) ......................................................... 6
ELECTRICAL CONNECTIONS ....................................................................... 7
GROUNDING INSTRUCTIONS ..................................................................... 7
INTERNAL VIEW OF PA6 CONVERTER ......................................................... 8
PA6 CONVERTER TO SENSOR ELECTRICAL CONNECTIONS .......................... 8
ALUMINUM CONVERTER TO SENSOR, ELECTRICAL CONNECTIONS .............. 9
DIGITAL INPUT ........................................................................................ 10
OPERATION ON INPUT ON OFF ................................................................ 10
OUTPUT WIRINGS ................................................................................... 11
Output on off 1250 Hz.............................................................................. 11
Output 4-20 mA ....................................................................................... 11
ACCESS TO THE CONVERTER KEYPAD ...................................................... 13
Key pad function ...................................................................................... 13
BLIND CONVERTERS ................................................................................ 13
ACCESSING THE CONVERTER FUNCTIONS AT START-UP (Power On) ......... 14
Example of visualized display pages at start-up .......................................... 14
FLOW RATE VISUALIZATION .................................................................... 15
CONVERTER FUNCTIONS SETTING ACCESS CODES ................................... 16
ACCESS TO THE CONFIGURATION MENU .................................................. 16
Factory preset access codes ...................................................................... 16
FUNCTIONS MENU ................................................................................... 19
FUNCTIONS DESCRIPTION ....................................................................... 22
ALARM MESSAGES, CAUSES AND CORRECTIVE ACTIONS ............................ 28
ANOMALY CODES ..................................................................................... 28
CONFORMITY DECLARATION .................................................................... 31
CONTENTS

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INTRODUCTION
SYMBOLS USED IN THIS MANUAL
This manual is integral part of the product. Read carefully the instructions contained in it
since it contains important indications for the safety of use and maintenance.
The technical information and the relative products of this manual could be modified
without any previous notice.
The flowmeter must be used for the use it has been built for. The improper use, possible
tampering of the instrument or parts of it and substitutions of any components not
original, makes the warranty to decay automatically. The manufacturer is considered
responsible only if instrument is used in its original configuration and setting, therefore
only qualified staff may open the cover.
The flowmeter makes measures of liquids with conductivity greater than 5 µS; it consists
of a converter (described in this manual) and a sensor, for which see the manual
provided.
When transporting, unpacking and handling the flowmeter, be careful and care.
In the case of protracted storage keep it in the original box in a dry place; do not place
more than 3 packs one above the other. It is possible storage and transport over a pallet
(in case of wooden crates do not place one above the other).
For the cleaning of the device use only a damp cloth, and for the maintenance repairs,
contact the service center (for details see the last page).
For device and packaging discarding, follow severely the local rules, laws and
regulations.
The reproduction of this manual and all the software supplied with the instrument is
strictly forbidden.
ATTENTION
WARNING
PRECAUTIONS
DANGER ELECTRIC SHOCK

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TECHNICAL CHARACTERISTICS
INPUT/OUTPUT ISOLATION
ENVIRONMENTAL CONDITIONS OF USE
OPERATING TEMPERATURE
Environmen al Temp.
Min. Max
°C °F °C °F
-10* -14* 50 122
 Input output insulated up to 500 V.
 The output 4-20 mA (optional) is electrically connected to the ON OFF outputs and
the output power supply (24 Vdc).
* In si ua ions of discon inuous use in cold environmen al empera ures, he
ins alla ion of an addi ional hea source may be necessary.
If the converter is supplied in compact version to the sensor, consider the operating
temperatures more restrictive; otherwise refer to the respective manuals.
ELECTRIC CHARACTERISTICS
Classifica ion of he conver er: class I, IP65 for PA6 housing, IP67 for aluminum
housing, installation category (overvoltage) III, rated pollution degree 2.
Power supply
versions
Power supply
vol age
Power supply
frequency Pmax Max curren
HV 100-240 V~ 44-66 Hz 5 VA 35 mA
LV 18-45 V 3 W 300 mA
18-45 V~ 44-66 Hz 5 VA
Voltage changes must not exceed ±10% of the nominal one.
 The converter can be installed internally or externally
 Altitude: from –200 to 2000 m (from -656 to 5602 feet)
 Humidity range: 0-85%, without condensation (only PA6 housing)
 Line voltage range: (see table of Electrical Characteristics above)

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DIMENSIONS (PA6 HOUSING)
COMPAC
T VERSION
SEPARATE VERSION
127
129
168
124
78
CABLE GLAND
COVER SCREW
IF2 CAP
TORQUES
To guarantee the housing’s IP degree the following torques are required:
 cover screws: 0,5 Nm
 cable glands: 4 Nm (in reference conditions)
 IF2 cap: 4 Nm

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DIMENSIONS (ALUMINUM HOUSING)
COMPACT VERSION
SEPARATE VERSION
193 169
160
78
CABLE GLAND
COVER SCREW
IF2 CAP
TORQUES
To guarantee the housing’s IP degree the following torques are required:
 cover screws: 0,8 Nm
 cable glands: 1,8 Nm (in reference conditions)
 IF2 cap: 2 Nm

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L(-)
N(+)
M3
M3
ELECTRICAL CONNECTIONS
ALWAYS ensure that the converter and the sensor are grounded (earthed) correctly. The
grounding of the sensor and converter ensures that the equipment and liquid are
equipotential.
 Before connecting the power supply, verify that the mains voltage are within the
limits indicated on data plate (see also page 4).
 For the connections use only approved conductors, with fire-proof properties, whose
section varies from 0,25 to 2,50 mm
2
, based on distance power; as well fix the
power supply wires with a additional fastening system located close to the terminal.
 The power supply line must be equipped with an external protection for overload
current (fuse or automatic line breaker).
 Provide nearness the converter a circuit breaker easily accessible for the operator
and clearly identified; whose symbols must conform to the electrical safety and local
electrical requirements.
 Ensure that the component complies with the requirements of the standard for
electrical safety distance.
 Check the materials chemical compatibility used in the connection security systems in
order to minimize the electrochemical corrosion. In the aluminum housing it should
avoid direct contact between the ground connection cable and the aluminum
housing. It is therefore recommended to connect the safety ground cable, by placing
it between the washer and the metal bracket on the related terminal or use an eyelet
terminal crimped on the ground protection cable.
 The sensor, hardwired inputs and outputs are connected to the converter through a
terminal block locate inside the converter.
 To locate the terminal block loosen the 4 screws on the front cover. When the front
cover is lifted, the terminal block is visible. The terminal block is the hardwire
connection of the converter to external equipment, including the sensor.
The following pages give informations on the terminal block numbering, and the
respective connecting of the sensor cables, and input outputs.
GROUNDING INSTRUCTIONS
CONVERTER POWER SUPPLY
PA6 HOUSING
ALUMINUM HOUSING

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INTERNAL VIEW OF PA6 CONVERTER
PA6 CONVERTER TO SENSOR ELECTRICAL CONNECTIONS
Power supply
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
Signalling LED:
See interpretation notes page 12
IF2 socket
Power supply
Keyboard
123456789
10
11121314151617181920
-
EC
+
SC B2 B1 SC
OUT2 OUT1 24V
24V
COILS
E1
E2
C
SC
4-20mA
ELECTRODES
EC
+
-
B
A
RS 485* INPUT
-
+
RS 485* : OPTIONAL, PROVIDED EXCLUSIVELY
BY THE MANUFACTURER
1
2
3
4
11
12
13
E1
E2
C
SH
SH
B1
B2
ALL SENSORS
SEPARATE VERSION
TERMINAL BLOCK
Sudden movements of to the
electrodes cable can cause noise
during measurement
Max cable leng h: 20 m

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Power supply
SENSOR cable
Shield
INTERNAL VIEW OF THE ALUMINUM CONVERTER
Signalling LED:
See interpretation notes page 12
IF2 socket
Keyboard
123456789
10
11121314151617181920
-
E C
+
SC B2 B1
OUT2 OUT1 24V
24V
COILS
E1
E2
C
4-20mA
ELECTRODES
E C
+
-
B
A
RS 485* INPUT
-
+
RS 485* : OPTIONAL, PROVIDED EXLUSIVELY BY THE MANUFACTURER
1
2
3
4
11
12
13
E1
E2
C
SH
SH
B1
B2
ALL SENSORS
SEPARATE VERSION
TERMINAL BLOCK M1
Sudden movements of the
electrodes cable can cause noise
during measurement
Max cable leng h: 20 m
ALUMINUM CONVERTER TO SENSOR, ELECTRICAL CONNECTIONS
Power supply

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0-1,5 V
3-40 V
AUTOCALIB. OFF
T
RESET
0-1,5 V
3-40 V
Tmin = 100ms
BLOCK
0-1,5 V
3-40 V
T
0-1,5 V
3-40 V
DIGITAL INPUT
OPERATION ON INPUT ON/OFF
3/40 Vdc (ON)
0/1,5 Vdc (OFF)
5 (+)
6 (-)
10 K
5
6
20
0
15
+24
10 K
Au o-calibra ion
Rese o alizers
Block o alizers
Block totalizers
Totalizers active
Necessary conditions for enabling the function
Necessary conditions for enabling the function
Necessary conditions for enabling the function
Tmin<T<1sec. = autocalibration
T > 1 sec. = Auto zero
POS. 5.7 ENABLED (Autozero calibration external
command)
POS. 5.1 to 5.4 ENABLED ( partial positive or reverse flow
totalizers reset enable).
POS. 5.6 ENABLED ( totalizers counting lock command)
POS. 5.8 ENABLED (range change)
Necessary conditions for enabling the function
Range change
Scale 2
Scale 1
10 Hz
20 Hz
50 Hz
80 Hz
150 Hz
220 ms
110 ms
45 ms
30 ms
15 ms
T must be > to Tmin
SAMPLE RATE Tmin SAMPLE RATE Tmin
Ex ernal power supply
In ernal power supply