Mettler Toledo M400 2 wire Wiring Diagram Installation guide

Brand: Mettler Toledo

Model: M400 2 wire Wiring Diagram

Type: Installation guide

Transmitter M400 2(X)H 18

Printed in Switzerland 30 748 687 A

4 Installation Instruction

4.1 Unpacking and Inspection of Equipment

Inspecttheshippingcontainer.Ifitisdamaged,contacttheshipperimmediatelyforinstructions.

Donotdiscardthebox.

Ifthereisnoapparentdamage,unpackthecontainer.Besureallitemsshownonthepacking

listarepresent.

Ifitemsaremissing,notifyMETTLERTOLEDOimmediately.

4.1.1 Panel Cutout Dimensional Information –

½DIN Models

½DINModeltransmittersaredesignedwithanintegralrearcoverforstand-alonewallmount

installation.

Theunitmayalsobewallmountedusingtheintegralrearcover.Seeinstallationinstructionsin

section4.1.2.

Belowarecut-outdimensionsrequiredbythe½DINmodelswhenmountedwithinaflatpanel

oronaflatenclosuredoor.Thissurfacemustbeflatandsmooth.Texturedorroughsurfacesare

notrecommendedandmaylimittheeffectivenessofthegasketsealprovided.

137 mm + 0.5 mm

– 0.0 mm

(5.39" + 0.02")

– 0.00"

PANEL CUT-OUT

137 mm + 0.5 mm

– 0.0 mm

(5.39" + 0.02")

– 0.00"

Optionalhardwareaccessoriesareavailablethatallowforpanel-orpipe-mount.

Refertosection15fororderinginformation.

Transmitter M400 2(X)H 19

Printed in Switzerland 30 748 687 A

4.1.2 Installation Procedure

General:

• Orientthetransmittersothatthecablegripsfacedownward.

• Wiringroutedthroughthecablegripsshallbesuitableforuseinwetlocations.

• InorderprovideIP66enclosureratings,allcableglandsmustbeinplace.Eachcablegland

mustbefilledusingacable,orsuitableCableGlandHoleSeal.

For Wall Mount:

• Removerearcoverfromfronthousing.

• Startbyunscrewingthefourscrewslocatedonthefaceofthetransmitter,ineachcorner.This

allowsthefrontcovertoswingawayfromtherearhousing.

• Removethehinge-pinbysqueezingthepinfromeachend.Thisallowsthefronthousingtobe

removedfromtherearhousing

• Mountrearhousingtowall.SecuremountingkittotheM400accordingtothesupplied

instructions.Attachtowallusingappropriatemountinghardwareforwallsurface.Besureitis

levelandsecurelyfastenedandtheinstallationadherestoanyandallclearancedimensions

requiredfortransmitterserviceandmaintenance.Orientthetransmittersothatthecablegrips

arefacingdownward.

• Replacethefronthousingtotherearhousing.Securelytightentherear-coverscrewstoensure

thatIP66/NEMA4Xenclosureenvironmentalratingismaintained.Theunitisreadytobewired.

For Pipe Mount:

• Useonlymanufacturer-suppliedcomponentsforpipe-mountingtheM400transmitterand

installperthesuppliedinstructions.Seesection15fororderinginformation.

4.1.3 Assembly – ½DIN Version

1. 3M20X1.5cableglands

2. Plasticsplugs

3. 4screws

Transmitter M400 2(X)H 20

Printed in Switzerland 30 748 687 A

4.1.4 ½DIN Version – Dimension Drawings

4.1.5 ½DIN Version – Pipe Mounting

40 ...

60 mm

1.57...

2.36"

METTLER TOLEDO

M400

150 mm / 5.90"

90 mm / 3.54"

36 mm

1.41"

72 mm

2.83"

150 mm / 5.90"

136 mm / 5.35"

90 mm / 3.54"

75 mm / 2.95"

105 mm / 4,13"

31 mm

1.22"

22 mm

0.87"

137 mm

(+0,5mm/−0,0mm)

5.39"

(+0.02"/−0.0")

137 mm

(+0,5mm/−0,0mm)

5.39"

(+0.02"/−0.0")

Transmitter M400 2(X)H 21

Printed in Switzerland 30 748 687 A

4.2 Connection of Power Supply

Allconnectionstothetransmitteraremadeontherearpanelofallmodels.

a Besurepowertoallwiresisturnedoffbeforeproceedingwiththeinstallation.

Atwo-terminalconnectorontherearpanelofallM400modelsisprovidedforpowerconnection.

AllM400modelsaredesignedtooperatefroma14–30VDCpowersource.Refertospecifications

forpowerrequirementsandratingsandsizepowerwiringaccordingly(AWG16–24,wirecross-

section0.2mm2 to 1.5 mm2).

4.2.1 Housing (Wall Mount)

1: TB1–InputandOutputAnalogSignal

2: TB2–SensorSignal

Transmitter M400 2(X)H 22

Printed in Switzerland 30 748 687 A

4.3 Terminal Block (TB) Denitions

TB1

TB2

A Q

1 12 13 18

PowerconnectionsarelabeledA01+ / HART and A01– / HART

resp.A02+ and A02–for14to30VDC.

4.4 Terminal Block TB1

Terminal Designation Description

1V_EC

Easyclean

2GND_EC

3485A_EC

4485B_EC

5DI1+ Digitalinput1

6DI1−

7DI2+ Digitalinput2

8DI2−

9OC1+ Opencollectoroutput1(switch)

10 OC1−

11 OC2+ Opencollectoroutput2(switch)

12 OC2−

13 AO1+/HART • Powerconnection14to30VDC

• Analogoutputsignal1

• HARTsignal

14 AO1−/HART

15 AO2+ • Powerconnection14to30VDC

• Analogoutputsignal2

16 AO2−

17 Notused –

Transmitter M400 2(X)H 23

Printed in Switzerland 30 748 687 A

4.5 Terminal Block TB2: Analog Sensors

4.5.1 Conductivity (2-e / 4-e) Analog Sensors

Terminal Function Color

A Cnd inner11) White

BCndouter11) White/blue

CCndouter1 –

DNotused –

E Cndouter2 –

F Cnd inner22 ) Blue

GCndouter2(GND)

2) Black

HNotused –

I RTDret/GND Bareshield

J RTDsense Red

KRTD Green

L Notused –

MNotused –

N Notused –

ONotused –

PNotused –

QNotused –

1) For third party Conductivity 2-e sensors a jumper between A and B may be required.

2) For third party Conductivity 2-e sensors a jumper between F and G may be required.

4.5.2 ph and Redox (ORP) Analog Sensors

pH Redox (ORP)

Terminal Function Color1) Function Color

A Glass Transparent Platinum Transparent

BNotused – – –

CNotused – – –

DNotused – – –

E Reference Red Reference Red

FReference

2) – Reference

2) –

GSolutionGND

2) Blue

3) SolutionGND

2) –

HNotused – – –

I RTDret/GND White – –

J RTDsense – – –

KRTD Green – –

L Notused – – –

MShield(GND) Green/yellow Shield(GND) Green/yellow

N Notused – – –

ONotused – – –

PNotused – – –

QNotused – – –

1) Grey wire not used.

2) Install jumper between F and G for ORP sensors and pH electrodes without SG.

3) Blue wire for electrode with SG.

Transmitter M400 2(X)H 24

Printed in Switzerland 30 748 687 A

4.5.3 Amperometric Oxygen Analog Sensors

InPro 6800(G) InPro 6900 InPro 6950

Terminal Function Color Color Color

ANotused – – –

B Anode Red Red Red

C Anode –1) –1) –

DReference –1) –1) Blue

E Notused – – –

FNotused – – –

GGuard – Grey Grey

HCathode Transparent Transparent Transparent

I NTCret(GND) White White White

J Notused – – –

K NTC Green Green Green

L Notused – – –

MShield(GND) Green/yellow Green/yellow Green/yellow

N Notused – – –

ONotused – – –

P+Ain

2) –––

Q–Ain

2) –––

1) Install jumper between C and D for InPro 6800(G) and InPro 6900.

2) 4 to 20 mA signal for pressure compensation

4.6 Terminal Block TB2: ISM Sensors

4.6.1 pH, Amperometric Oxygen, Conductiviy (4-e)

and Dissolved Carbon Dioxide ISM Sensors

Terminal Function Color

ANotused –

BNotused –

CNotused –

DNotused –

E Notused –

FNotused –

GNotused –

HNotused –

I Notused –

J Notused –

K Notused –

L1-wire Transparent(cablecore)

MGND Red(shield)

N RS485-B –

ORS485-A –

P+Ain1) –

Q–Ain1) –

1) Only for Oxygen sensors: 4 to 20 mA signal for pressure compensation

Transmitter M400 2(X)H 25

Printed in Switzerland 30 748 687 A

4.6.2 Optical Oxygen ISM Sensors

Optical Oxygen with VP8 Cable1) Optical Oxygen with other Cables

Terminal Function Color Function Color

ANotused – Notused –

BNotused – Notused –

CNotused – Notused –

DNotused – Notused –

E Notused – Notused –

FNotused – Notused –

GNotused – Notused –

HNotused – Notused –

I Notused – D_GND(shield) Yellow

J Notused – Notused –

K Notused – Notused –

L Notused – Notused –

MD_GND(shield) Green/yellow D_GND(shield) Grey

N RS485-B Brown RS485-B Blue

ORS485-A Pink RS485-A White

P+Ain

3) – +Ain

3) –

Q–Ain

3) – –Ain

3) –

1) Connect the grey +24DC wire and the blue GND_24V wire of the sensor separately to an external power supply.

2) Connect the brown +24DC wire and the black GND_24V wire of the sensor separately.

3) 4 to 20 mA signal for pressure compensation

Mettler Toledo M400 2 wire Wiring Diagram Installation guide

Mettler Toledo M400 2 wire Wiring Diagram Installation guide

Mettler Toledo M400 2 wire Wiring Diagram Installation guide

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