MULTISPAN MHC-512 Owner's manual

MULTISPAN
Brand
MULTISPAN
Model
MHC-512
Type
Owner's manual

MULTISPAN MHC-512 is a humidity controller designed for refrigeration and HVAC applications. It features a 3-digit 7-segment display, 2 relay outputs, and a range of 0.0 to 99.9% relative humidity. The MHC-512 can be used for dehumidification or humidification control, and it has a number of features that make it ideal for these applications, including:

  • Set point and hysteresis: The MHC-512 allows you to set a desired humidity level and a hysteresis value. The hysteresis value determines the amount of variation in humidity that is allowed before the controller takes action.
  • Alarm: The MHC-512 has an alarm output that can be used to alert you when the humidity level exceeds or falls below a certain threshold.

MULTISPAN MHC-512 is a humidity controller designed for refrigeration and HVAC applications. It features a 3-digit 7-segment display, 2 relay outputs, and a range of 0.0 to 99.9% relative humidity. The MHC-512 can be used for dehumidification or humidification control, and it has a number of features that make it ideal for these applications, including:

  • Set point and hysteresis: The MHC-512 allows you to set a desired humidity level and a hysteresis value. The hysteresis value determines the amount of variation in humidity that is allowed before the controller takes action.
  • Alarm: The MHC-512 has an alarm output that can be used to alert you when the humidity level exceeds or falls below a certain threshold.
WIRINGDIAGRAM
MECHANICAL INSTALLATION
MODEL
A37mm
78mm
70mm
30mm
B
C
D
E
DIMENSIONS
3mm
A
B
SET
ENT
MHC 512
E
C
D
NOTE
PressKeyforgo

intotheparameter
●
Press&to
parameter
changethe
●
Presskeyforexit
theprogram
from
●
OPERATING MANUAL
HUMIDITY CONTROLLER
TECHNICALSPECIFICATION
MHC-512
ModelModel MHC-512
Display
Size (mm)
37 (H) x 78 (W) x 70 (D) mm
Power Supply
Operating
Temperature
Relative
Humidity
Panel Cutout
Input
Range
Output
30 X 71 mm
2 Relay, (NO-C-NC)
1st Relay
2nd Relay for Alarm contact
230V AC,50/60Hz,Approx 3VA
0.0 To 99.9 %
3 Digit 0.62” 7 Segment
RED / WHITE Display
RST
ENT
RST
Presskeytoreset
●ENT
RST
theAlarmRelaywhen
Alarmcondition
Occurs
230V AC
50/60Hz,3VA
MHC 512-B1-01
LN
!
Alarm
RH-100
0.0 to 99.9 %
Relay
} 10A
( Resistive load )
NCC NO NCC NO
Press or key to change
value
Press key
SET
Process Value
Set Point Message
Password Message
Set Point
Press for 3 sec to
enter into password
%
R1
Dehumidification/
Humidification
/
Password message
Enter password “39”
Delay time
0.0 to 20.0 Min
Hysterisis
0.1 to 20.0 %
-9.0 to 9.0 %
Operating Mode
Offset
Press key to Save and Exit
(High & Low/High/Low/None)
Set Low Limit
Set High Limit
(0.0 to 99.9 %)
(0.0 to 99.9%)
Alarm selection
Press key to Save and Exit
0 to 999 sec
Alarm Time
(Yes/No)
(No/Yes)
Alarm
Lock Paramter
Factory Set
(No/Yes)
(No/Yes)
Lock Paramter
Factory Set
(No/Yes)
(Yes/No)
Press key to Save and Exit
Password message
Enter password “69”
IF Alarm = NO SelectedIF Alarm = Yes Selected
%
IfNokeyisPressed,
Menuwill
Automatically
exitafter15SEC.
withsaving.
Humidity Sensor (RH-100)
HUMIDITY RH
OPN
SensoropenorBreak
Sensorisnotconnected
Temperaturevaluegoesdown
to-50orgoesupto99.9
ManualMode
FactorySetData
Hysteresis
TimeDelay
DefrostFrequency
DefrostTime
SetLowerLimit
SetHigherLimit
Offset
Open
Parameter
(SLL)
(SHL)
WarningGuidelines
InstallationGuidelines
1)Topreventtheriskofelectricshockpower
supplytotheequipmentmustbekeptOFFwhile
doingthewiringarrangement.Donottouchthe
terminalswhilepowerisbeingsupplied.
2)Toreduceelectromagneticinterference,use
wirewithadequateratingandtwistsofthesame
ofequalsizeshallbemadewithshortest
connection.
3)Cableusedforconnectiontopower
source,musthaveacrosssectionof1mm
orgreater.Thesewiresshouldhave
insulationscapacitymadeofatleast1.5kV.
3)Cableusedforconnectiontopower
source,musthaveacrosssectionof1mm
orgreater.Thesewiresshouldhave
insulationscapacitymadeofatleast1.5kV.
3.0
0min
0hours
0min
-50C
99.9C
0.0C
OFF
°
°
°
4)Whenextendingthethermocouplelead
wires,alwaysusethermocouple
compensationwiresforwiringfortheRTD
type,useawiringmaterialwithasmall
leadresistance(5Ωmaxperline)andno
resistancedifferentialsamongthree
wiresshouldbepresent.
5)Abetteranti-noiseeffectcanbeexpected
byusingstandardpowersupplycable
fortheinstrument.
2
1)Thisequipment,beingbuilt-in-type,
normallybecomesapartofmaincontrol
panelandsuchincasetheterminalsdo
notremainaccessibletotheenduser
afterinstallationandinternalwiring.
2)Donotallowpiecesofmetal,wireclippings,
orfinemetallicfillingsfrominstallationto
entertheproductorelseitmayleadtoa
safetyhazardthatmayinturnendangerlife
orcauseelectricalshocktotheoperator.
3)Circuitbreakerormainsswitchmustbe
installedbetweenpowersourceand
supplyterminaltofacilitatepower‘ON’
or‘OFF’function.Howeverthismains
switchorcircuitbreakermustbeinstalled
atconvenientplacenormallyaccessible
totheoperator.
4)Useandstoretheinstrumentwithinthe
specifiedambienttemperatureandhumidity
rangesasmentionedinthismanual.
3
0min
0hours
0min
-50C
99C
0C
OFF
°
°
°
69
and
1)Preparethepanelcutoutwithproper
dimensionsasshowabove.
2)Fittheunitintothepanelwiththehelpof
clampgiven.
3)Theequipmentinitsinstalledstatemust
notcomeincloseproximitytoanyheating
source,causticvapors,oilssteam,orother
unwantedprocessbyproducts.
4)Usethespecifiedsizeofcrimpterminal
(M3.5screws)towiretheterminalblock.
Tighteningthescrewsontheterminalblock
usingthetighteningtorqueoftherangeof
1.2N.m.
5)Donotconnectanythingtounusedterminals.

Maintenance
1)Theequipmentshouldbecleanedregularly
toavoidblockageofventilatingparts.
2)Cleantheequipmentwithacleansoftcloth.
Donotuseisopropylalcoholoranyother
cleaningagent.
3)Fusibleresistormustnotbereplacedby
operator.
MechanicalInstallationGuideline
OPERATING MANUAL
HUMIDITY CONTROLLER
MHC-512
1)Preparethepanelcutoutwithproper
dimensionsasshowabove.
2)Fittheunitintothepanelwiththehelpof
clampgiven.
3)Theequipmentinitsinstalledstatemust
notcomeincloseproximitytoanyheating
source,causticvapors,oilssteam,orother
unwantedprocessbyproducts.
4)Usethespecifiedsizeofcrimpterminal
(M3.5screws)towiretheterminalblock.
Tighteningthescrewsontheterminalblock
usingthetighteningtorqueoftherangeof
1.2N.m.
5)Donotconnectanythingtounusedterminals.

MechanicalInstallationGuideline
InstallationGuidelines
1)Thisequipment,being
built-in-type,
normallybecomesapart
ofmaincontrolpaneland
suchincasetheterminals
donotremainaccessible
totheenduserafter
installationandinternal
wiring.
Maintenance
1)Theequipmentshouldbe
cleanedregularlytoavoid
blockageofventilatingparts.
2)Cleantheequipmentwitha
cleansoftcloth.Donotuse
isopropylalcoholoranyother
cleaningagent.
3)Fusibleresistormustnotbe
replacedbyoperator.
WarningGuidelines
SafetyPrecautions
Allsafetyrelatedcodifications,
symbolsandinstructionsthatappear
inthisoperatingmanualoronthe
equipmentmustbestrictlyfollowed
toensurethesafetyoftheoperating
personnelaswellastheinstrument.
Ifalltheequipmentisnothandledin
amannerspecifiedbythe
manufacturer,itmightimpairthe
protectionprovidedbythe
equipment.
=>Readcompleteinstructions
priortoinstallationand
operationoftheunit.
WARNING:Riskofelectricshock.
Productimprovementandupgradeisaconstantprocedure.
Soformoreupdatedoperatinginformationandsupport,
Pleasecontactourhelpline:+91-9978991483/81or
Emailat[email protected]Ver:2208
A brand by
Temperature & Humidity Controllers
Designed for Refrigeration & HVAC
A wide range of controllers for
managing various refrigeration applications.
www.multispanindia.com
1)Topreventtheriskofelectricshock
powersupplytotheequipment
mustbekeptOFFwhiledoingthe
wiringarrangement.Donottouch
theterminalswhilepowerisbeing
supplied.
2)Toreduceelectromagnetic
interference,usewirewith
adequateratingandtwistsofthe
sameofequalsizeshallbemade
withshortestconnection.
2)Donotallowpiecesof
metal,wireclippings,or
finemetallicfillingsfrom
installationtoenterthe
productorelseitmaylead
toasafetyhazardthatmay
inturnendangerlifeor
causeelectricalshockto
theoperator.
3)Circuitbreakerormains
switchmustbeinstalled
betweenpowersourceand
supplyterminaltofacilitate
power‘ON’or‘OFF’
function.Howeverthis
mainsswitchorcircuit
breakermustbeinstalled
atconvenientplace
normallyaccessibleto
theoperator.
4)Useandstorethe
instrumentwithinthe
specifiedambient
temperatureandhumidity
rangesasmentionedin
thismanual.
ManualMode
If+keypressedfor3sec,
Therelaygoesinmanual
Defrostmodeanddisplay
shows“OFF”message.
Pressandhold+key
toturnonrelay.
3)Cableusedforconnectionto
powersource,musthaveacross
sectionof1mmorgreater.
Thesewiresshouldhaveinsulations
capacitymadeofatleast1.5kV.
4)Whenextendingthethermocouple
leadwires,alwaysusethermocouple
compensationwiresforwiringforthe
RTDtype,useawiringmaterialwitha
smallleadresistance(5Ωmaxperline)
andnoresistancedifferentialsamong
threewiresshouldbepresent.
5)Abetteranti-noiseeffectcanbe
expectedbyusingstandardpower
supplycablefortheinstrument.
WIRINGDIAGRAM
230V AC
50/60Hz,3VA
MHC 512-B1-01
LN
!
Alarm
RH-100
0.0 to 99.9 %
Relay
NCC NO NCC NO
FactorySetData
Hysteresis
Mode
Parameter Set
1.0%
hum
1.0min%
YES
10Sec
H-L
0.0%
99.9%
0.0%
Offset
SetHigherLimit
SetLowerLimit
AlarmOnTimeAlarmOnTime
AlarmSelection
Alarm
TimeDelay
RLY-OFF
RLY-ON
RLY-ON
RLY-ON
RLY-OFF
RLY-OFF
Temp.
S.V
HYST
Time
OFF OFF
ON ON
delay delay delay
Time Time Time
RLY-ON
RLY-OFF
Temp.
HYST
S.V
Time
OFF OFF OFF
ON ON ON
Humidity Function Dehumidity Function
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MULTISPAN MHC-512 Owner's manual

MULTISPAN
Brand
MULTISPAN
Model
MHC-512
Type
Owner's manual

MULTISPAN MHC-512 is a humidity controller designed for refrigeration and HVAC applications. It features a 3-digit 7-segment display, 2 relay outputs, and a range of 0.0 to 99.9% relative humidity. The MHC-512 can be used for dehumidification or humidification control, and it has a number of features that make it ideal for these applications, including:

  • Set point and hysteresis: The MHC-512 allows you to set a desired humidity level and a hysteresis value. The hysteresis value determines the amount of variation in humidity that is allowed before the controller takes action.
  • Alarm: The MHC-512 has an alarm output that can be used to alert you when the humidity level exceeds or falls below a certain threshold.
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