901003 100351 PDF
Data Sheet
mA-Bus ConverterTM
Functions
There are two configurations of the mA-Bus
converter. One is in the standard MJK field
housing with blind lid, the other is in the MJK
wide field housing with a display. The later
configuration allows the converter from other
MJK transmitters to be housed together with
the mA-Bus converter.
With the mA-Bus Converter™ the measured
values are converted into Modbus values
and displayed as engineering units. The large
built-in data logger of the display unit offers
160,000 time-stamped entries. A trend curve
of the loged data for the overview by the local
operator is easily retrieved and shown in the
display simply by pushing one button on the
unit. The logged values can then be transferred as csv files to a PC.
Applications
• The mA-Bus Converter™ is used for well
water supply systems where the pipe
system pressure is shown on the MagFlux®
display together with the flow.
• For booster stations on the water supply system, where a pressure transmitter
measures and controls the speed of the
pumps and the pressure is shown together
with the flow and volume of the water flow.
Add the pump’s power consumption if needed and a complete system data viewing
and collection is possible.
• Another example is to measure dissolved
oxygen in aeration basins and add a Redox potential (ORP) measurement from a
transmitter with mA output for side by side
display and data logging.
Mechanical dimensions
Small field cabinet
6.4”
Wide field cabinet
9.84 in.
9.80 in.
1.20 in.
3.35 in.
6.1”
5.91 in.
5.67 in.
5.9”
5.7”
3.11 in.
Straight mounted
front plate
US 6.80 mA-Bus Converter 1205
We reserve the right to continuously improve our products and make any
change in the stated specifications and dimensions without prior notice.
MJK North America, Inc.
37 Sherwood Terrace, #126
Lake Bluff, IL 60044
Tel: 847-482-8655
877 MJK LINK
Fax: 847-482-8654
[email protected]
www.mjk.com
6.80
The MJK mA-Bus Converter™
is used when a measured
value from a transmitter with
analog mA signal is to be
shown on an MJK display.
The mA-Bus Converter™
translates any mA signal to
Modbus® and can be used
together with the MJK transmitter series for flow, dissolved oxygen, turbidity etc.
Data Sheet
Specifications
mA-Bus ConverterTM
Inputs (I/O’s - 3DI / 2AI)
Analog inputs
2 pcs. AI galvanic separated, 4 - 20 mA
Accuracy
Better than ± 0.25 % of reading
Digital inputs
3 pcs. DI, 10 - 30 V DC
Power supply for I/O
1 pcs. 24 V DC, 200 mA
Communication
Modbus® RTU-mode, Settings, 9600 baud, 2-wire RS 485, slave
Interfaces
1 pcs. RS-485 galvanic separated for MagFlux® / SuSix® / Oxix® or Display unit
Power supply
115/230 V AC 50 / 60 Hz, ±10 % or 24 V AC, 50 / 60 Hz ± 10 %
Power consumption
Max. 10 W
Cabinet material
Glass-reinforced polycarbonate
Enclosure rating
IP 67 / Nema 4x
Temperature range
- 20 … 60 °C / -4 - 140 ºF
Weight
1 kg / 2.3 lbs
CE approvals
EN 61000-6-4:2001, EN 61000-6-2:2001
AI2
COM DI1 DI2 DI3
PE
N
L
Order Numbers
For remote
Display Unit
For attached
Display Unit
Display
Fuse rating: 100 mAT @ 115 V AC
63 mAT @ 230 V AC
AI1
Supply 24 V DC
Elelectrical connection
mA-Bus ConverterTM
295910
mA-Bus Converter™, small Field cabinet - (I/O- 2AI / 3DI)
295911
mA-Bus Converter™, wide field cabinet with Display - (I/O- 2AI / 3DI)
295912
mA-Bus converter™, small field cabinet with Display- (I/O- 2AI / 3DI)
205505
Display unit for mA-Bus, wide cabinet
207940
Display unit for mA-Bus, small cabinet
MJK offices:
Distributed by:
US 6.80 mA bus converter 1205
Accessories
Denmark
Sweden
www.mjk.dk
[email protected]
+45 45 56 06 56
www.mjk.se
[email protected]
+46 53 31 77 50
Norway
www.mjk.no
[email protected]
+47 69 20 60 70
Ireland
Australia
www.mjk.com
[email protected]
+353 87 953 5625
au.mjk.com
[email protected]
+61 03 9758 8533
The Netherlands
North America
Singapore
nl.mjk.com
[email protected]
+31 251 672171
us.mjk.com
[email protected]
+1 847 482 8655
www.mjk.sg
[email protected]
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