SGM LEKTRA MUXM User manual
MUXM
multiplexer concentrator for TM and TU (pending) probes
technical documentation EN Rev. of 16/03/2022
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MUXM - contents
CONTENTS
1-WARRANTY
2-PRODUCT
3-FEATURES
4-DIMENSIONS
5-ELECTRICAL CONNECTIONS
6-VL701 DISPLAYING AND PROGRAMMING
7-CONFIGURATION
8-FACTORY TEST AND QUALITY CERTIFICATE
page 3
page 4
page 5
page 6
page 8
page 16
page 17
page 24
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Products supplied by SGM LEKTRA are guaranteed for a period of 12 (twelve) months from delivery date according to the
conditions specifi ed in our sale conditions document.
SGM LEKTRA can choose to repair or replace the Product.
If the Product is repaired it will maintain the original term of guarantee, whereas if the Product is replaced it will have 12
(twelve) months of guarantee.
The warranty will be null if the Client modifi es, repair or uses the Products for other purposes than the normal conditions
foreseen by instructions or Contract.
In no circumstances shall SGM LEKTRA be liable for direct, indirect or consequential or other loss or damage whether
caused by negligence on the part of the company or its employees or otherwise howsoever arising out of defective goods
1-WARRANTY
MUXM - warranty
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MUXM - product
2- PRODUCT
3
2
1
1. “VL701” extractable module (optional) for displaying and programming
2. Terminals
3. Closing cover
2.1 IDENTIFICATION
Each instrument has an adhesive identication plate on which are the meter main data. The following picture describes the
information and data on the identication plate
MUXM02B
85÷230Vac 50÷60Hz
AB0123456789
2
3
1
1. Product code
2. Power supply
3. Serial number
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3-FEATURES
MUXM
Concentrator for TM temperature probes and TU humidity probes (pending). Up to max. 32 TU+TM probes can be connected to
each MUXM. With 32 connected TM probes, and each probe with 50 temperature measuring points (highest possible option), the
total is 1600 controllable points. The electrical connection between the probe and the MUXM is made with a screened cable, while
the connection between the MUXM and the AGRITHERM-50 control unit is made with screened bipolar cable for data
communication via MODBUS RTU. The MUXM and the connected probes conguration is made via the VL701 removable module
and operations are displayed by the O-LED display. Up to 63 “MUXM” can be connected by MODBUS serial network.
Housing material
Aluminium
Installation
Wall mounting
Programming
Via VL701 removable module with display and 4 buttons (opt.)
Display
OLED display 57 x 30 digit alphanumeric
Electrical connections
4 removable terminals 4-pole probes for TM or TU
2 terminal. extr. 3-pin connection for Modbus
2 terminal. extr. 3-pin for supply voltage
Power supply
85 ÷ 230Vac 50 to 60Hz
Consumption
3.5 VA
Measuring inputs
No. 4 x 8 TM or TU probes
Conversion Resolution
0.1° C
Maximum expansion system
No. 63 MUXM
TM probes per MUXM unit
No. 32 maximum
Digital communications
MODBUS RTU
Operating temperature
-20 ° C to + 70 ° C
Ip rating
IP66
Ex-proof
ATEX Zone 22 self certication
MUXM - features
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MUXM - dimensions
4-DIMENSIONS
4.1 MECHANICAL DIMENSIONS
285~
210~
92,5
160
260
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MUXM - dimensions
4.2 WALL MOUNTING
240mm
110mm
Ø7mm
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5.1 INSTALLATION PRECAUTIONS
- Installation shall only be performed by quali ed personnel and in accordance with local governing regulations.
- Make sure that the working temperature is between -20 and +70°C
- Install the concentrator in a its physical characteristics and housing construction materials compatible environment.
- The concentrator must be used safety warnings observance.
- Improper transmitter use would cause serious damage to people, to the product and connected equipment.
- Do not open the housing in the presence of potentially explosive dust
5-ELECTRICAL CONNECTIONS
MUXM - electrical connections
5.2 ADVICE FOR EXTERNAL MOUNTING
- for electrical connections, use a cable with a 6÷12mm outer diameter and fully tighten the M20x1.5 cable gland
- correctly close the cover, and fully tighten the screws.
- For connections between MUXM and TM use probes FUTP2PR AWG624/1 CAT. 5E cable
- position the cable so that it forms a downward curve at the cable glands output; in this way the condensation and/or rain water
will tend to drip from the bottom curve (as shown below).
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MUXM - electrical connections
5.2.1 CABLES ENTRY/EXIT
M20x1.5
85÷230Vac power sup-
ply cable entry
M20x1.5
85÷230Vac power
supply cable entry
M20x1.5
MODBUS RTU
serial communication
cable entry
M20x1.5
MODBUS RTU
serial communication
cable entry
M20x1.5
Cable entry for TM probes
connecting to the
CH1 ÷ CH4 channels
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MUXM - electrical connections
5.2.1.1 Cable technical specications for the TM probes and MODBUS connection
FUTP2PR AWG6 24/1 CAT. 5E cable
Conductors copper rigid wire, Ø 0,50mm
Insulations Polyethylene, Ø 1,00mm +-0,1
Conductors Colours 2 white-green-brown
Wires twisted in pairs Green/white-brown/white
Twisting Twisted pairs between them
Shielding Polyester tape + tinned copper continuous wire + Mylar tape
Sheath BLUE PVC RZ RAL 5015 Ø 5,90mm+-0,50
Marking SGM-LEKTRA-525B025A-F UTP 2PR AWG 6 24/1 CAT 5E+metric mark
Operating temperature -25°C+70°C (xed installation)
Test voltage 1,5KV V.c.a.
Working voltage 300/300V
Curvature radius 8 times the diameter
Reference Standards CEI 20-35 - IEC 332.1 – CEI 20-37 ROHS 2011/65/UE(ROHS 2)
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