Fitted Options- Power Supply:
24V
Output Option Card: 1-Current 2-Relays Channel1: Cond
Channel2: Cond Channel3: Cond
Mains
3-Current 0-Relays
pH/Redox
pH/Redox
pH/Redox
3-Current 4-Relays
ECS
ECS
ECS
5-Current 2-Relays
DO
DO
DO
Modbus 4-Relays
Aux mA IP
Aux mA IP
Aux mA IP
SS
SS
SS
MXD75
Quick Start Guide
Relay Connection Details
MXD75 Instrument Dimensions
74 mm
300 mm
6 mm x
3 off
8 mm
74 mm
Power Connection Details
CAUTION!
Always remove the main power from the
system before any alterations to the wiring.
Ensure that both power lines are isolated. Make
sure that the power cannot be switched on by
accident whilst the instrument is being
connected. For safety reasons an earth
connection must be made to the earth terminal
of this instrument.
Local wiring and safety regulations should be
strictly adhered to when installing this
instrument. If the installation methods and
cable types recommended in this guide are
followed, then the instrument will achieve the
levels of EMC protection as specified in the
accompanying CD manual.
Consult the serial label on the side of the
instrument for supply voltage requirements.
Power Supply
“Live” In
Power Supply
“Live” Out
(For Daisy Chaining)
Power Supply
“Neutral” In
Power Supply
“Neutral” Out
(For Daisy Chaining)
Protective Earth
(Must Be Connected)
Earth
L
+
N
-
L
+
N
-
Earth
Earth
Power Connector
85V-265V AC/DC Power Supply
Connection Details
Power Supply
“+” In
Power Supply
“+” Out
(For Daisy
Chaining)
Power Supply
“-” In
Power Supply
“-” Out
(For Daisy
Chaining)
Protective Earth
(Must Be Connected)
Earth
L
+
N
-
L
+
N
-
Earth
Earth
Power Connector
18V-32V AC/DC Power Supply
Connection Details
Relay Connection Details
Available Relays Vary Depending On Instrument Configuration
5-6
NO3 C3 NC3
NO2 C2 NC2
NO1 C1 NC1
NO6
C6
NO5
C5
NO4 C4 NC4
Relay 1
Normally
Open
Contact
Relay 1
Common
Contact
Relay 1
Normally
Closed
Contact
Relay 2
Normally
Open
Contact
Relay 2
Common
Contact
Relay 2
Normally
Closed
Contact
NO1 C1 NC1 NO2 C2 NC2
NC3
NO3 C3
Relay 3
Common
Contact
Relay 3
Normally
Open
Contact
Relay 3
Normally
Closed
Contact
Relay 4
Normally
Open
Contact
Relay 4
Common
Contact
Relay 4
Normally
Closed
Contact
Relay 5
Normally
Open
Contact
Relay 5
Common
Contact
Relay 6
Normally
Closed
Contact
NO4 C4 NC4 C5 NO5 C6 NO6
Relay 6
Normally
Open
Contact
Relays 1 - 3 Connector
Relays 4 - 6 Connector
LTH recommends using No.
10 x 1¼ inch round head
screws or similar for
mounting.
Ensure top screw head is 8
mm proud.
Care must be taken when
fitting the unit on uneven
walls or surfaces. Do not
over stress the mounting
lugs.
Over tightening the
mounting screws could also
break the lugs.
Drill Hole Dimensions
110 mm
CH3
CH2
CH1
85-265V 15W
_
~
1
4
7
2
5
8
3
6
G
G
G
DIGITAL
INPUTS
SENSOR INPUT 3
SENSOR INPUT 2
SENSOR INPUT 1
L
+
N
-
L
+
N
-
SD CARD
0/4-20 mA
OUTPUT
1
2
A+
-
A
A
B
B G E C
A
+
-
+
-
E
E
R R
A
B
B
A
A
B
B
+
-
+
-
R R
D D
CONDUCTIVITY
PH / REDOX
ECS CONDUCTIVITY
5-6
A+
B+
C+
D+ -
-
-
0/4-20 mA
OUTPUTS
3
2
1
6
5
4
Power Supply
Input
Relays
Current Outputs
/ Modbus RS485
Channel 1
Input
Channel 2
Input
Channel 3
Input
Digital
Inputs SD Card
Slot
Earth Studs
Ethernet
Port
(Future
Expansion)
Exact Instrument Configuration Depends
Upon Ordered Specification
MON 1 JUN 2009
09:56
CH1: 517.2 µS/cm TEMP1: 12.3°C
CH2: 9.64 pH
CH3: 23.3%
TEMP2: 25.0°C
TEMP3: 28.0°C
MAIN MENU
DIGITAL INPUTS
CHANNELS
EXIT
4-20mA OUTPUTS
CALIBRATION
SETPOINT / RELAYS
CONFIGURATION
CURSOR
FURTHER MENU
PAGES BELOW
INSTRUMENT
READINGS
CURRENT
DATE / TIME
UNIT STATUS
FURTHER MENU
PAGES ABOVE
MON 1 JUN 2009
09:56
CH1: 517.2 µS/cm TEMP1: 12.3°C
CH2: 9.64 pH
CH3: 23.3%
TEMP2: 25.0°C
TEMP3: 28.0°C
SETPOINT 1 SETUP
INPUT SOURCE:
RANGE:
TRIGGER:
HIGH VALUE:
MODE:
CHANNEL:
SENSOR
0 to 9.999 mS/cm
HIGH
7.500mS/cm
ON/OFF
EXIT
CHANNEL 1 (COND)
LOW
BAND
LATCH HIGH
TRIGGER
HIGH
LATCH LOW
CURSOR
ADDITIONAL
OPTIONS BELOW
OPTION POP-UP
MON 1 JUN 2009
09:56
CH1: 517.2 µS/cm TEMP1: 12.3°C
CH2: 9.64 pH
CH3: 23.3%
TEMP2: 25.0°C
TEMP3: 28.0°C
CHANNEL 1 SETUP
UNITS:
CELL CONSTANT:
RANGE:
TEMP INPUT SENSOR:
TEMPERATURE UNITS:
MODE:
SIEMENS(S/cm)
1.000
AUTO
PT1000
°C
EXIT
ON-LINE
SECURITY CODE
CODE
ENTER ACCESS
* * *
0
User Interface Overview
Scrolling Menu Layout
Front Layout
Main Menu Layout
Pop-Up Option Layout
Security Access Pop-Up
To protect the instrument setup
from unauthorised or accidental
tampering, a security access code
system is present. This is
implemented via the instrument’s
menu system which operates in two
modes, “locked” as indicated by a
padlock symbol and “unlocked” as
indicated by a key symbol.
Fourth Issue September 2016
For configuration and calibration information please consult the operational manuals
on the accompanying CD.
The default Access Code is: 1000
Front Screen
Current
Output
Bargraphs
Channels
Setup
Setpoint /
Relays Setup
4-20mA
Outputs Setup
Digital
Inputs Setup
Error
Messages
Live Trends
1, 2 & 3*
*Optional Extra
CAL
SETPOINT STATUS
LEDS
SETPOINT STATUS
LEDS
ALARM STATUS
LEDS
09:56
MON 1 JUN 2009
CH1:
517.2
µS/cm
i)
ii)
12.3
°C
A: 12.28mA
CH2:
9.64
pH
i)
ii)
25.0
°C
-156mV
CH3:
23.3
%
i)
ii)
28.0
°C
2.15Atm
MENU
CAL
CONTEXT SENSITIVE BUTTON FUNCTIONS
UNIT STATUS
CURRENT TIME
CHANNEL
MESSAGES
CHANNEL SECONDARY
READING ii
CURRENT DATE
CHANNEL PRIMARY
READING
CHANNEL ID
CHANNEL SECONDARY
READING i
CHANNEL ALARM
STATUS
TANK 1
TANK 3
CHANNEL
LABEL
A+
C+
D+
E+
F+
-
-
-
0/4-20 mA
OUTPUTS
B+
Current Output Connector
Current
Output A+
Current
Output B+
B+
C+
D+
E+
F+
Current
Output D+
Current
Output -
(Common)
Current
Output E+
Current
Output C+
Current
Output F+
Current
Output -
(Common)
Current Output Connection Details
A+
-
-
-
Current
Output -
(Common)
Current Output & Modbus Connection Details
-
MODBUS RS485
& 0/4-20 mA OUTPUT
Modbus and Current Output Connector
Current
Output A+
Current
Output -
(Common)
Modbus A
Conenction
(Inverting)
(Rx-/Tx-) Modbus B
Connection
(Non-Inverting)
(Rx+/Tx+)
Modbus and Current Output
Connection Details
A+
mA
Modbus C
Connection
(0V Reference)
Optional
-
mA
A-
485
B+
485
C
G
485
A+
mA
A-
485
B+
485
C
G
485
mA
Available Current Output and Modbus Connections Vary Depending Upon
Instrument Configuration
Temperature Connection Details
Sensor Input Connector
Link
Link
RTD
2 Wire RTD
Temperature Connection
A
A
B
B
Sensor Input Connector
RTD
3 Wire RTD
Temperature Connection
Link
A
A
B
B
Sensor Input Connector
Link
22K Thermistor
Temperature Connection
Link
Thermistor
A
A
B
B
T
(Only Available On Dissolved Oxygen Input Card)
Sensor Input Connector
RTD
4 Wire RTD
Temperature Connection
A
A
B
B
Digital Input Connection Details
G
1
2
3
4
5
6
7
8
Digital Input Connector
1
4
7
2
5
8
3
6
G
G
G
Digital Input Connection Details
PO Box 1142
Pukekohe
Auckland
2340
New Zealand
Telephone: +64 (0) 9 234 4609
email: [email protected]
Web: www.quadbeam.co.nz
SKT5
SKT6
SKT7
HEADER A
HEADER B
HEADER C
HEADER D OR E
COMMS A
COMMS B
CH3
CH2
CH1
85-250V 15W
_
~
1
4
7
2
5
8
3
6
G
G
G
DIGITAL
INPUTS
SENSOR INPUT 3
SENSOR INPUT 2
SENSOR INPUT 1
L
+
N
-
L
+
N
-
SD CARD
LINK
ACT
0/4-20 mA
OUTPUT
1
2
A+
-
A
A
B
B G E C
A
+
-
+
-
E
E
R R
A
B
B
A
A
B
B
+
-
+
-
R R
D D
CONDUCTIVITY
PH / REDOX
ECS CONDUCTIVITY
5-6
A+
B+
C+
D+ -
-
-
0/4-20 mA
OUTPUTS
3
2
1
6
5
4
F1
F2
F3
F4
F5
09:56
MON 1 JUN 2009
CH1:
517.2
µS/cm
i)
ii)
12.3°C
A: 12.28mA
CH2:
9.64
pH
i)
ii)
25.0°C
-156mV
CH3:
23.3
%
i)
ii)
28.0°C
2.15Atm
MENU
CAL
242 mm
331 mm
09:56
MON 1 JUN 2009
CH1:
517.2
µS/cm
i)
ii)
12.3°C
A: 12.28mA
CH2:
9.64
pH
i)
ii)
25.0°C
-156mV
CH3:
23.3
%
i)
ii)
28.0°C
2.15Atm
MENU
CAL
