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INTRODUCTION!TO!THE!HGM300/RDM800!YOKOGAWA!REFRIGERANT!
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Welcome!ñ!This!is!an!introduction!the!Yokogawa! HGM300/RDM800!refrigerant! monitor! system.!As! you!open!the!
shipping!carton!locate!the!following!items;!
HGM300!ñ!Manufactured! to!your!order!specifications,!that!is,!number!of!zones,!type!of!air!sample!fittings!and!dual!
4-20ma!DC!option!(if!ordered)!!!!
RDM800!ñ!Remote!Display!Module!(if!ordered).!
Charcoal!filter!with!ìTî!bolt!bracket;!line! end!filter!assembly!(quantity!dependant!on!number!of!zones!ordered!ñ!for!
4! zones! ñ! 5! filters,! for! 8! zones,! 9! filters,! 12! zones! 13! filters! and! 16! zones! 17! filters.! Do! not! use! a! filter! on! the!
exhaust!line).!
Operations!manual!
Optional! items! ñ! Audio/Visual! alarms,! visual! alarm,! audio! alarm,! air! sample! tubing,! etc.! as! ordered.
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Proper!mounting!of!HGM300!and!RDM800!-!!
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HGM300!Mounting!Specs!!!!
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7.0"
14.0"
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RDM800!Mounting!Specs!
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7.0"
9.0"
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Rev.!10/22/01!!
HGM300/RDM800!mini!manual.doc
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The! HGM300! should! be! centrally! located! in! the! mechanical! room! and! be! readily! accessible! for! easy! visual!
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monitoring! and! servicing.! Air! sample! tubing! may! be! run! in! lengths! up! to! 500í.! The! fresh! air! purge! line! should!
draw! from!an! area ! that!does! not! contain!any! refrigerant! gas! and! cannot! exceed! 300í! in! length.! The! exhaust!
line!should!run!to!an!out!side!location!if!possible.!The!length!of!the!exhaust!line!cannot!exceed!100í.!!
!Ideally,!two!to!three!pick!up!points!spaced!around!each!chi ller!will!provide!sufficient!coverage.!It!may!be! necessary!
to!perform!a!ìsmokeî!test!of!the!mechanical!room!to!determine!the!best!locations.!The!smoke!test!would!provide!the!
pattern!of!air!currents!present!in!the!mechanical!room.!
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HGM300/RDM800!Refrigerant!Gas!leak!monitor!mechanical!room!placement!
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Sample! Inlet!
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Picture!of!HGM300!alarm!wiring)!
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!The!RDM800!should!be! mounted! outside! of!the! mechanical! room!or! at!least!just!inside!of!a!door! to! the!room.!
This!is!the! ì split! architecture! designî ! for! safety!of! the!operator.!The! RDM800!can! be! located! up! to! 4500í ! from!the!
HGM300.!The! RDM800! is! the! man! machine! interface! by!which! you! program! the! HGM300,! acknowledge! alarms!
and!observe!conditions!inside!of!the!mechanical!room.!Note!that! there!are!two!additional!alarm!relay!contacts!in!the!
RDM800!that!can!be!programmed!to!alarm!with!ì leak,!spill,!evacuate,!fault!or!monitor!onî .!
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Rev.!10/22/01!!
Exhaust Fan
Chiller!
Outside Hallwa
Machine Room
Aux. Horn/Strobe
Remote Alarm
HGM300
Halo
Monitor
Sample Inlet Pickup Points
HGM300/RDM800!mini!manual.doc
RDM800
Remote
Display
Module
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WIRING!THE!HGM300!
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Dual!4-20!mAdc!
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Outputs!
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RS485!
AC!Power!(In!/!Out)!--!RS485!--!4-20!mAdc!
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Node!Address!
Switch
On/Off!Power!
Switch
Main!120Volt!Power!
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(Used!to!supply!power!for!audio/visual!alarms)!
Auxiliary!Power!120Volt!
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Leak,!Spill,!Evac uate!&!
Fault!alarm!wiring!block
Rev.!10/22/01!!
HGM300/RDM800!mini!manual.doc
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WIRING!THE!RDM800
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HGM300!RS485!
Connector!
Terminator!for!
Building!Automation!
RS485!Connecto
Building!
Automation!
System!RS485!
Connector!
Terminator!for!
HGM300!RS485!
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Connector!
RDM800!
relays!
Main!Power!
Rev.!10/22/01!!
HGM300/RDM800!mini!manual.doc
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HGM300!Relay!Wiring!
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!!!!!!!!!!!!LEAK!!!!!!!!!!!!!!!SPILL!!!!!!!!!!EVACUATE!!!!!!!FAULT!
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Relay
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Strobe!
Relay
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#2
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COMMON
Relay
#3
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COMMON
Relay
#4
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COMMON
NO
Horn!
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!!!!Aux.!Power! ! !!!!Main!Power!
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Jumper!the!ëNeutralí!of!the!auxiliary!power!connector!to!the!ëCommoní!on!the!relay!block.!!!
Connect!one!end!of!strobe!or!horn!to!the!ëNOí!of!whichever!level!of!alarm!is!appropriate!for!application.!
The!other!end!of!strobe!or!horn!is!connected!to!a!120VAC!power!source,!or!to!the!ëLineí!of!the!auxiliary!
power!connector!(Max!5AAC).!
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Line!
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eutral!
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HGM300/RDM800!mini!manual.doc
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Power!up!the!monitor!system.!(Warm!up!time!is!15!minutes)!
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Start!up!checkpoints!!!
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a)! All!b uttons!on!RDM800!ìchirpî!when!pressed.!(Contact!the!factory!if!the!do! not! ìchirpî.!See!last!page! for!
whom!to!call)!
b)! Communication!connection!between!HGM300!and!RDM800!
c)! Checking!node!address!for!HGM300ís!(multiple!HGM300î s!also)!
d)! Terminator!positions!
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TERMINATOR!
!!!!!!!!!ìINî!! MULTIPLE!HGM300íS!WITH!RDM800
RMD800!
!!!!!!!!!!!RS-485!! RS-485!CONNECTIONS!BETWEEN!HGM300ís!!
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HGM300!
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UNIT!1!
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ODE!1!
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TERMINATOR!! !!TERMINATOR!! ! TERMINATOR!! !!TERMINATOR!
!!!ì OUTî ! ! !!!!!!!!ìOUTî !! ! ! !!!!!!ì OUTî ! ! !!!!!!!!ìINî!
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The!HGM300!may!be!connected!to!a!building!automation!via!the!RS-485!connector.!The!node!address!
switch!on!each!HGM300!may!be!set!from!ì0î!to!ì16î!in!order!to!conform!to!the!building!automation!
system!requirements.!Units!set!to!a!ì0î!or!ì1î!address!both!respond!to!messages!from!the!RDM800!as!
address!ì1î!therefore!you!should!not!have!a!unit!set!to!ì0î!and!another!set!to!ì1î!on!the!same!network.!If!
the!HGM300!network!is!connected!directly!to!a!building!automation!system!
the!RDM800.!However,!the!RDM800!has!two!communications!ports,!an!ìupstreamî!port!(labeled!TO!
BMS)!and!a!ìdownstream!port!(labeled!TO!MONITORS).!A!BMS!node!may!be!connected!to!the!upstream!
RDM800!port!while!the!downstream!RDM800port!talks!to!the!HGM300ís.!In!this!case,!the!BMS!is!talking!
ìthroughî!the!RDM800!to!the!HGM300ís,!but!not!physically!on!the!HGM300/RDM800!network.!
Note!ñ!If!the!HGM300!is!not!at!the!end!of!the!line!in!a!series!connection,!then!the!terminator!on!the!HGM!
must!be!set!to!ìOUT.î!!Also,!each!end!of!the!network!must!have!the!terminator!set!to!ìINî.!
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HGM300!
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!!!!!!!TERMINATOR! !!!!!!!!!!TERMINATOR!! TERMINATOR!! TERMINATOR!
!!!! !ìINî! ! !!!! !!ì OUTî !! ! !!!!!!ì OUTî ! ! !!!!!!!!!ìINî!
Rev.!10/22/01!!
ODE!1!
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! NOTE!ñ!THE!LAST!HGM300!OR!RDM800!ON!EITHER!END!OF!THE!NETWORK!
MUST!HAVE!THE!TERMINATOR!IN!THE!ìINî!POSITION!AND!ALL!OTHER!
UNITSMUST!HAVE!THEIR!TERMINATORS!IN!THE!ì OUTî !POSITION.!
! NOTE!ñ!TOTAL!LENGTH!OF!RS-485!CABLE!CANNOT!EXCEED!1500m.!!(Use!
instrument!cable!20!gage!multistrand!shielded!and!twisted!pair!ñ!similar!or!equal!to!
Beldon!cable!#8762.)!
THE!RDM800!AND!HGM300!UNIT!4!TERMINATOR!MUST!BE!IN!THE!ìINî!
POSITON.!!HGM300!UNITS!1,!2,!&!3!MUST!BE!IN!THE!ì OUTî !POSITION.!
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HGM300!
UNIT!2!
Multiple!HGMís!
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HGM300!
UNIT!3!
ODE!2!
Connecting!To!A!Building!Automation!System!
BMS!
HGM300!
ODE!2!
ODE!3!
HGM300!
ODE!3!
HGM300!
UNIT!4!
ODE!4!
may!not!be!connected!to!
HGM300!
ODE!4!
HGM300/RDM800!mini!manual.doc
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MULTIPLE!HGM300ís!CONNECTED!TO!A!BUILDING!AUTOMATION!SYSTEM!
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DAISEY!CHAIN!FASHION!!!
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RS-485!!!!!TERMINATOR!
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HGM300!
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UNIT!1!
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ODE!1!
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TERMINATOR!! !!TERMINATOR!! ! TERMINATOR! ! !!!!!!!TERMINATOR!
!!!!!ì OUTî ! ! !!!!!!!ì OUTî !! ! ! !!!!!!ì OUTî ! ! !!!!!!!!!!!!!!!ìINî!
Node!address!may!be!set!from!0!to!16!to!allow!building!automation!system!to!integrate!the!monitor!
system!into!its!system.!(Note:!!Units!set!for!address!ì0î!and!address!ì1î!will!both!respond!to! address!ì1î!
messages.!!Therefore,!there!should!not!be!an!address!ì1î!and!an!address!ì0î!unit!on!the!same!network.!
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PROGRAMING!THE!HGM300!USING!THE!RDM 800
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1)! From!the!System!Screen!on!the!RDM800!press!the!button!adjacent!to!ì ZONESî .!
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System!Screen!
HGM300!
UNIT!2!
ODE!2!
BUILDING!
AUTOMATION!
SYSTEM!
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HGM300!
UNIT!3!
ODE!3!
HGM300!
UNIT!4!
ODE!4!
SETUP!SCREEN!#!1!
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2)! Press!button!adjacent!to!ZONE!1!
Note!-!Press!button!adjacent!to!ì LOCATIONî .!Using!the!keypad!left/right!buttons!to!move!across!and!the!
up/down!buttons!to!enter!alphanumeric!data,!enter!a!location!for!zone!one!(up!to!12!characters).!
Press!ìENTERî!to!lock!in!data!and!allow!you!to!move!to!the!next!function.!
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3)! Press!the!button!adjacent!to!ì REFRIGERANTî !
!!!!!!!Using!the!up/down!keys!select!the!proper!refrigerant!gas!for!this!zone,!then!press!ìENTERî!
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4)! Press!the!ìDISTANCEî!button;!use!the!left/right!keys!to!move!across!and!the!up/down!keys!to!enter!the!length!
of!tubing!for!this!zone,!then!press!îENTERî.!(Note!ñ!to!disable!a!zone!set!the!distance!to!ì0î)!
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5)! Press!ìAVE!TEMPî !This!function!is!used!to!ì standardizeî !the!readings!to!ìStandard!Temperature!and!
Pressureî !(STP,!which!is!1!atmosphere!and!25!degrees!C).!This!function!is!rarely!if!ever!used.!The!PPM!
readings!displayed!are!inversely!related!!(i.e.,!as!temperature!goes!up,!PPMs!decrease)!to!the!temperature!of!the!
sample!(and!thus!the!sample!area).!If!the!sample!area!temperature!does!not!vary!from!standard!temperature!(i.e.,!
25°C!or!77°F)!significantly!the!PPM!reading!will!not!be!greatly!affected.!!A!10°C!(18°F)!change!in!the!
area/sample!temperature!will!result!in!~3.5%!change!in!the!PPM!reading.!!!The!Ave!temp.!parameter!can!be!
used!to!compensate!the!PPM!reading!as!the!sample/sample!area!temperature!varies!from!ìstandardî!temperature!
(25°C!or!77°F).!
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Rev.!10/22/01!!
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HGM300/RDM800!mini!manual.doc
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6)! Use!the!left/right!and!up/down!keys!to!change!the!temperature!and!the!ìENTERî!key!to!complete!the!action.!
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7)! ì CURRENT!PPMî !This!function!cannot!be!accessed.!
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8)! Press!the!ìLOG!INTERVALî !button!only!if!the!interval!is!to!be!reduced!from!the!1440-minute!(once!every!24!
hours)!factory!setting!to!a!lower!setting.!(At!the!1440!minute!setting!the!HGM300!will!record!the!observed!PPM!
level!once!every!24!hours.!This!can!be!reset!to!lower!numbers!to!trend!a!problem!in!a!given!zone.)!
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9)! Press!ìMOREî!This!takes!you!to!the!second!zone!set!up!screen.!
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SETUP!SCREEN!#!2!
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Press!ìLEAK!LEVELî !button.!Use!left/right!keys!to!move!across!and!up/down!keys!to!readjust!leak!alarm!PPM!
level!to!desired!PPM!level.!
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10)! Press!ìSPILL!LEVELî !button.!Repeat!as!in!step!8.!
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11)! Press!ìEVACUATE!LEVELî !Button.!Repeat!as!in!step!8.!
Note:!!The!evacuate!level!must!be!greater!than!or!equal!to!the!spill!level,!which!must!be!greater!than!or!equal!to!
the!leak!level.!
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12)! Press!ìRESET!PEAKî !button.!Use!the!to!clear!the!previous!peak!PPM!displayed!for!this!zone.!
This!key!is!used!to!clear!the!peak!PPM!for!this!zone,!which!is!displayed!at!the!top!of!this!screen.!!The!peak!PPM!
gives!the!PPM!level,!time!and!date!of!the!highest!refrigerant!readings!since! the!unit!was!last!cleared!(or!started,!
if!the!reading!has!never!been!cleared).!!The!peak!PPM!reading!along!with!the!TREND!DATA!can!be!a!powerful!
diagnostic!tool!in!detecting!small!leaks!before!they!become!large!leaks.!
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13)! To!move!to!the!next!zone!set!up!screen!press!the!right!keypad!button.!Use!the!ì BACKî !button!to!move!to!the!
first!zone!set!up!screen.!Repeat!steps!2!to!13!to!program!the!second!zone.!
Repeat!as!necessary!for!all!zones!in!monitor.!
To!return!to!the!SYSTEM!SCREEN,!press!QUIT!then!press!SYSTEM.!
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PROGRAMMING!USING!THE!HGM300!PC!SOFTWARE
Note!ñ!There!are!two!versions!of!software!and!firmware.!Version!1.0!generally!is!found!in!HGM300!serial!
numbers!beginning!with!AJ00!to!serial!numbers!beginning!with!AF01!and!version!1.25!from! serial!numbers!
beginning!with!AF01!forward.!!!If!an!RDM800!is!connected!to!the!unit!the!version!of!the!firmware!can!be!
obtained!from!the!HGM300!Main!screen.!
Insert!software!disk!into!PC.!
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Note:! The!PC!software!uses!COM1!by!default.!!Therefore,!the!interface!cable!should!be!connected!to!the!port!
configured!as!COM1!on!the!PC.!!Also,!no!other!software!drivers!or!devices!in!the!PC!may!control!COM1!
when!the!HGM300!software!is!in!use.!
The!connection!is!made!through!a!standard!ìstraight!throughî !serial!port!connection.!!A!three-wire!
connection!is!used!(RXD,!TXD,!and!GND).!!No! hard ware!flow!control!is!used.!!The!HGM300!software!
automatically!configures!COM1!to!match!the!HGM300!RS-232!communications!parameters.!
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Turn!on!power!to!HGM300.!
Rev.!10/22/01!!
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HGM300/RDM800!mini!manual.doc
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!Connect!RS232!interface!cable!to!PC!and!RS232!port!on!the!HGM300!after!both!the!HGM300!and!PC!has!fully!
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powered!up.!
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Open!the!HGM300!software!using!Windows!Explorer.!!Upon!start!up,!the!program!will!immediately!attempt!to!
download!data!from!the!HGM300.!!Several!beeps!can!be!heard!as!the!program!communicates!with!the!HGM300.!!
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Note:! To!move!through!the!screen!use!the!ARROW
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Use!the!ENTER
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Using!the!arrow!keys!go!to!EDIT!ñ!press!Enter!key!ñ!the!EDIT!Menu!DROPS!DOWN!ñ!select!SYSTEM!ñ!press!
ENTER!key.!!The!HGM!ì LOCATIONî !becomes!highlighted.!!Press!ENTER!key!to!move!to!the!HGM!TAG!area,!
use!the!BACKSPACE!key!to!remove!the!existing!tag,!then!enter!in!a!new!tag.!!Press!ENTER!and!you!are!returned!to!
ì LOCATION.î !!Use!the!ARROW!key!to!select!the!next!item!to!be!addressed.!!You!CANNOT!change!the!ìSNî!or!
ìFIRMWAREî!items.!!Press!the!ESCAPE!key!to!return!to!the!menu!bar.!
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Go!to!EDIT!ñ!press!ENTER,!select!ì ZONESî !and!press!ENTER!key.!!You!may!now!select!a!specific!zone!to!
identify!and!set!parameters.!!When!"REFRIGERANTî !is!selected!use!the!ARROW!keys!to!move!up!and!down!
through!the!gas!library!to!locate!the!gas!type!for!that!zone!ñ!HIGHLIGHT!the!gas!type!and!press!ENTER.!
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To!set!the!ALARMS!ñ!select!EVAC!LEVEL!first,!press!ENTER!use!the!BACKSPACE!key!to!clear!previous!setting!
and!type!in!the!new!PPM!level.!!Use!the!same! method!to!set!the!SPILL!LEVEL!and!LEAK!LEVEL.!!!
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To!close!or!bypass!a!zone,!set!the!DISTANCE!to!0!feet.!
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!Saving!the!program!to!a!disk!or!C!drive
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Saving!an!HGM300!program!to!a!disk!or!the!ëCí !drive.!
1`)!ñ!Go!to!ëF I L E í !on!the!software!program!screen,!select!ëP A TH í !using!the!arrow!keys!then!press!enter.!
Change!the!ëC U R E N T !PATHí!to!the!desired!drive!and!location.!
!2)!ñ!Select!ëSAVE!SETUPí!type!in!the!title,!such!as!HGM!#!1!then!press!enter.!
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Sending!a!saved! setup!to!the!HGM300!
1)! ñ!Select!ëP A T H í !enter!the!correct!path!for!the!saved!program.!
2)! ñ!Select!ëO P E N !SETUPí!ñ!path!and!setup!name!is!displayed.!Use!the!arrow!keys!to!go!to!HGM!and!select!
ëS E N D !SETUPí!then!press!enter.!The!saved!program!will!be!sent!to!the!HGM300.!
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USB!type!lap!tops
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Some!of!the!newer!laptops!have!USB!ports!and!no!RS-232!9!pin!ports.!You!will!be!required!to!purchase!a!
PCMCIA!card!that!converts!the!laptop!to!RS-232.!Yokogawa!knows!of!one!PCMCIA!card!that!works!well.! The!
manufacturer!is;!
!
! SEALEVEL!SYSTEMS,!INC.!
155!TECHNOLOGY!PLACE!!
P.!O.!BOX!830!
LIBERTY,!SC!29657!
PHONE!ñ!864-843-4343!
www.sealevel.com
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Part!number!!-!PC-!SIO-232!PCMCIA!CARD!ñ!Cost!$!199.00!
A!ì !straight!throughî !RS-232!cable!and!a!DB25!to!DB9!converter!will!be!required!to!connect!to!the!
HGM300.!
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!key!to!select!options!and!the!ESCAPE!key!to!back!out!of!a!selection.!
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!keys!to!move!up,!down,!left!and!right.!
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HGM300/RDM800!mini!manual.doc
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RESPONDING!TO!ALARMS
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To!respond!to!an!alarm!from!the!SYSTEM!SCREEN!press!the!button!adjacent!to!the!blinking!ALARM!field.!!
This!will!take!you!to!the!ALARM!SUMMARY!SCREEN.!
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The!ALARM!SUMMARY!SCREEN!displays!a!list!of!all!alarm!conditions!across!the!network.!Each!box!represents!
a!single!alarm.!If!there!are!more!then!eight!alarms!additional!screens!can!be!displayed!by!pressing!the!MORE!button.!
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Each!active!alarm!is!indicated!by!a!blinking!box,!as!an!alarm!is!acknowledged!the!box!stops!blinking.!
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To!acknowledge!an!alarm,!press!the!button!adjacent!to!the!first!alarm!box.!This!will!take!you!to!the!ALARM!
DETAIL!SCREEN.!The!ALARM!DETAIL!SCREEN!displays!the!following!information;!
• Complete!location!information!
• Refrigerant!type!and!current!PPM!level!
• Peak!PPM!and!peak!time!
• Type!of!alarm,!alarm!time!and!date!
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Alarm!Summary!Screen!
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Alarm!Detail!Screen!
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The!ALARM!DETAIL!SCREEN!allows!access!to!three!buttons!on!the!bottom!of!the!screen:!
QUIT!ñ!Returns!you!to!the!ALARM!SUMMARY!SCREEN!
ACK!ñ!Acknowledges!the!alarm!
SETUP!ñ!Returns! you!to!the!ZONE!SETUP!SCREEN!(From!the!ZONE!SETUP!SCREEN!you!can!access!
the!TREND!SCREEN!for!that!zone.)!
!
To!acknowledge!the!alarm!press!the!button!below!ACK.!You!will!be!returned!to!the!ALARM!SUMMARY!
SCREEN!and!the!box!associated!with!that!alarm!will!no!longer!be!blinking,!indicating!that!the!alar m!has!been!
acknowledged.!Repeat!this!procedure!for!each!active!alarm.!When!all!alarms!are!acknowledged!the!red!alarm!light!
will!go!out!on!the!HGM300!and!the!alarm!relays!will!de-activate.!All!pending!alarms!across!the!entire!network!must!
be!acknowledged!before!the!RDM800!returns!to!normal!operation.!Once!this!occurs,!the!RDM800!red!alarm!light!
will!go!out!and!its!relays!will!de-activate.!
NOTE!ñ!If!there!is!still!sufficient!refrigerant!gas!present!the!system!will!go!back!into!alarm!
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LOG!INTERVAL!AND!TREND!SCREEN
The!HGM300!retains!a!data!log!of!100!measurements!per!zone,!starting!on!the!left!and!moving!to!the!right.!The!log!
interval!is!the!number!of!minutes!from!0!to!1440!(1440!minutes!is!once!every!24!hours)!between!each!log!point.!
This!parameter!can!be!changed!from!the!ZONE!SETUP!SCREEN!for!each!zone.!(When!0!minutes!are!set!the!trend!
is!recorded!every!time!the!zone!is!sampled.)!
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Zone!Setup!Screen!#1!
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The!LOG!INTERVAL!setting!is!a!useful!tool!to!determine!what!is!occurring!in!a!mechanical!room!over!time.!
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Trend!Screen!
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From!the!ZONE!SCREEN!press!the!button!adjacent!to!the!zone!that!you!wish!to!work!with!to!go!to!the!ZONE!
SETUP!SCREEN,!press!the!button!below!TREND!to!get!to!the!TREND!screen!for!that!zone.!
The!trend!graph!opens!to!the!most!current!data!point.!Use!the!left/right!keypad!keys!to!move!the!cursor!across!the!
screen.!As!you!move!across!the!screen!the!date!and!time!of!the!reading!and!the!PPM!level!will!be!displayed.!Use!the!
ZOOM!IN!and!ZOOM!OUT!buttons!to!adjust!the!vertical!scale.!
Trend!data!is!first!in,!first!out!basis.!After!100!trend!values!have!been!stored!the!101
stored!value.!!
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1)!!-!Working!with!the!fault!screens!
WORKING!WITH!THE!FA ULT!SCREENS
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A.! From!the!ìSYSTEMî!screen!press!the!button!adjacent!to!ìFAULTî.!This!takes!you!to!the!FAULT!SCREEN.!
The!information!displayed!on!this!screen!is!broken!onto!two!categories!ñ!CRITICAL!FAULTS!and!NON!
CRITICAL!FAULTS.!
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FAULT!SCREEN!
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CRITICAL!FAULTS
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1)! NO!FLOW!ON!ZONE!ñ! Go!to!SYSTEM!SCREEN,!the!to!ZONES.!The!zone!screen!will!display!a!ìNO!
FLOWî !message! in!each!individual!zone!affected.!Check!for!a!blockage!in!the!air!sample!line!or!at!the!line!end!
filter.!Once!the!blockage!has!been!cleared,!the!HGM300!will!return!to!normal!operation!after!the!zone!has!been!
sampled.!Note!-!This!can!take!some!several!minutes!since!it!is!dependent!upon!how!many!zones!there!are!and!
their!lengths.!The!HGM300!will!clear!the!fault!the!next!ti me!it!polls!the!effected!zone!and!the!RDM800!will!
return!to!normal!operation!the!next!time!that!it!polls!the!HGM300.!
2)! NO!FLOW!ON!PURGE!ñ!Check!the!purge!line!for!a!blockage.!Verify!that!the!length!of!the!purge!line!and!
exhaust!line!do!not!exceed!100!feet!in!length.!
3)! NO!FLOW!DETECTED!ñ!Check!for!proper!pump!operation.!Check!the!water!trap!ñ!drain!if!necessary.!
4)! CLIPPING!FAULT!ñ!The!detector!voltage!may!be!out!of!tolerance.!Check!the!DIAGNOSTIC!SCREEN!for!the!
DET!voltage,!AVE!voltage!and!ZERO!voltage.!Call!the!factory!with!this!information!at!1-800-888-6400!Ext.!
5182,!5169!or!5403!for!farther!instructions.!
5)! REZERO!VOLT!TOL!ñ!The!detector!output!voltage!is!out!of!tolerance.!Check!the!DIAGNOSTIC!SCREEN!as!
in!item!4!and!contact!the!factory!for!assistance.!
6)! TRIGGER!FAULT!ñ!No!trigger!from!IR!source!pulser.!Contact!factory!with!all! information!from!the!
DIAGNOSTIC!SCREEN!for!farther!instructions.!
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DIAGNOSTIC!SCREEN
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To!get!to!the!DIAGNOSTIC!SCREEN!ñ!From!the!SYSTEM!SCREEN!press!the!button!adjacent!to!the!HGM300!
that!you!wish!to!view,!this!takes!you!to!the!HGM!SETUP! SCREEN,!from!there!press!the!button!adjacent!DIAG.!
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1)! BOX!TEMP!FAULT
Check!the!installation!to!verify!that!the!monitor!is!not!being!subjected!to!extreme!temperatures.!Verify!that!
the!ventilation!holes!are!not!obstructed.!Check!the!DIAGNOSTIC!SCREEN!for!the!ZERO!temperature,!
BNCH!temperature!and!BOX!temperature.!Call!the!factory!with!this!information!at!!
!!!!!!!!! ! 1-800-888-6400!Ext.!5182,!5169!or!5403!for!farther!instructions.!
Rev.!10/22/01!!
!ñ!Internal!ñ!Enclosure!temperature!is!outside!normal!range!(or!IR!sensor!has!failed).!
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! NON!CRITICAL!FAULTS
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2)! BENCH!TEMP!FAULT
Check!the!installation!to!verify!that!the!monitor!is!not!being!subjected!to!extreme!temperatures.!Check!the!
DIAGNOSTIC!SCREEN!for!the!ZERO!temperature,!BNCH!temperature!and!BOX!temperature.!Call!the!
factory!with!this!information!at!1-800-888-6400!Ext.!5182,!5169!or!5403!for!farther!instructions.!
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! 3)! PRESSURE!SENSOR
Check!the!DIAGNOSTIC!SCREEN!record!ALL!data!and!call!the!factory!with!this!information!at!
1-800-888-6400!Ext.!5182,!5169!or!5403!for!farther!instructions.!
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4)! LOOP!FAULT
current!loops!are!open.!!Check!the!wiring!to!load/monitoring!circuit!on!both!4-20mA!loops.!
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5)! CONFIG!FAULT
verify!that!the!actual!number!of!zones!installed!in!the!monitor!is!equal!to!the!number!indicated!in!the!Zone!
Setup!Screen.!Check!to!insure!that!the!manifold!solenoid!cable!connector!is!securely!fastened!to!its! terminal!
connector.!Check!for!illegal!parameter.!Reset!to!factory!default!settings.!!!
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Reset!to!factory!default!settings
off!then!on!while!holding!that!button!down!ñ!listen!for!five!b eeps!then!release!the!button.!Reprogram!the!
HGM300.!
!Performing!this!function!wipes!out!all!program!parameters,!alarms,!faults,!trends!and!log!
Note!ñ
files.!!
Resetting!the!RDM800!to!factory!default!settings!
RDM800!to!factory!default!settings.!From!the!System!Screen,!press!and!hold!the!button!adjacent!to!the!
ìALARMî!function,!cycle!power!off!then! on,!listen!for!five!beeps.!
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FAULT!LOG!SCREEN
last!20!fault!conditions!recorded!by!the!system.!!Using!the!left/right!keys!on!the!keypad!you!can!move!
across!the!screen!to!view!the!time!and!date!of!the!fault.!
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!ñ!This!would!only!be!displayed!if!the!dual!4-20mAdc!option!was!installed!and!one!or!both!
!ñ!There!is!an!error!in!the!ZONE!SETUP!SCREEN,!Number!of!zones!field.!Check!to!
!ñ!Optical!bench!is!outside!of!normal!operating!range!(or!sensor!has!failed).!
!ñ!Manifold!pressure!is!outside!normal!operating!range!(or!sensor!has!failed).!
!-!Hold!down!the!left!most!button!inside!the!HGM300!ñ!cycle!the!power!
ñ!Occasionally!it!will!be!necessary!to!rest!the!
!ñ!From!the!FAULT!SCREEN!press!the!button!under!LOG.!This!screen!lists!the!
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!Working!with!the!diagnostic!screen!
Archived Document
Overview
The!Diagnostic!Screen!displays!reference!values!for!use!by!repair!technicians.!From!the!top!level!Zone!
Screen!press!the!SYSTEM!key!to!go!to!the!System!Screen.!Press!the!Diagnostic!key!to!view!the!
reference!values.!
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Diagnostic!Screen!Overview
The!diagnostic!screen!contains!sensor!data!and!status!information!useful!for!trouble!shooting!various!
fault!conditions.!!An!explanation!of!each!line!is!given!below!along!with!normal!operating!ranges.!
LINE!1:!Detector!Voltage!ñ!This!is!the!peak!to!peak!output!of!the!IR!sensor,!in!the!absence!of!refrigerant!this!
value!can!range!from!3.900V!to!4.500V.!
LINE!2:!Average!Detector!Voltage!ñ!This!is!simply!a!running!average!of!the!values!displayed!in!line!1.!
LINE!3:!Zero!Voltage!ñ!This!is!the!IR!sensor!output!that!was!stored!during!the!last!purge!cycle!and!has!the!
same!range!as!line!1.!
LINE!4:!Noise!ñ!This!is!a!16!point!running!average!of!the!noise!portion!of!IR!bench!output.!!This!reading!is!
valuable!mainly!when!refrigerant!is!NOT
LINE!5:!Average!Absorbency!ñ!This!is!the!optical!absorbency!computed!from!the!values!in!lines!2!and!3.!In!the!
absence!of!refrigerant!the!absorbency!is!approximately!0.000AU.!!When!sampling!refrigerants,!itsí!value!varies!
proportionally!with!the!refrigerant!concentration.!
LINE!6:!uMoles/L!ñ!This!is!the!absolute!concentration!in!micromoles!per!liter!of!refrigerant!base!on!line!4!and!
the!internal!calibration.!!There!are!2!figures!given.!!The!first!(which!is!annotated!by!a!B)!is!the!actual!
measurement!at!the!IR!bench.!!The!second!is!the!calculated!value!corrected!to!ambient!conditions!(temperature!
+!pressure).!!!
LINE!7:!PPM!ñ!Parts!Per!Million!is!the!volume!concentration!referenced!to!standard!te mperature!and!pressure!
and!is!computed!from!lines!5,!8!and!12.!!There!are!2!figures!given.!!The!first!(annotated!by!a!B)!is!the!actual!
PPM!at!the!IR!branch.!!The!second!is!a!PPM!reading!normalized!to!standard!temperature!and!pressure.!
LINE!8:!Zero!Temperature!ñ!This!line!contains!the!sensor!and!enclosure!temperature!measured!and!stored!
during!the!last!purge!cycle!in!degrees!C.!
LINE!9:!Bench!Temperature!ñ!This!is!the!current!IR!sensor!temperature!in!degrees!C!as!well!as!the!raw!
voltage!coming!from!the!temperature!sensor!itself.!!This!value!can!range!from!ambient!to!ambient!+15!degrees!
C.!
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LINE!10:!Box!Temperature!ñ!This!is!the!current!internal!enclosure!temperature!along!with!the!raw!voltage!
Archived Document
from!the!temperature!sensor,!and!has!the!same!range!as!line!8.!
LINE!11:!Pressure!ñ!This!is!the!current!absolute!manifold!pressure!in!PSIA!along!with!the!output!voltage!of!
the!pressure!sensor.!!This!value!should!always!be!0.2!to!1.0!PSIA!below!ambient!(line!12).!
LINE!12:!Vacuum!ñ!The!vacuum!pressure!is!measured!every!purge!cycle!by!closing!all!sample!valves.!!Itsí!
value!is!typically!2.5!to!4.0!PSIA!below!ambient!(line!12).!
LINE!13:!Ambient!ñ!Ambient!pressure!is!measured!every!purge!cycle!with!the!sample!pump!off!and!the!
manifold!open.!!Itsí!value!is!weather!and!altitude!dependent!and!can!range!from!10.0!to!15.5!PSIA.!
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WHOM!TO!CALL!AT!THE!FACTORY!
FOR!REFRIGERANT!GAS!LEAK
MONITOR!ASSISTANCE
!
PHONE!NUMBER:! 800-888-6400!
FAX!NUMBER:!! 770-251-2088!
WEB!SITE:!! ! www.yca.com!
!
Dianne!Evans:!x5417,!dianne.evans@yca.com
Dolan!Malloy:!x5182,!dolan.malloy@yca.com
Peter!Pape:!x5169,!peter.pape@yca.com
C.!R.!Phillips:!x5403,!cr.phillips@yca.com
Jeff!summers:!x5143,!jeff.summers@yca.com
!
SHIPPING!ADDRESS:!
!
YOKOGAWA!CORP.!OF!AMERICA!
!!2!DART!ROAD!
!!NEWNAN,!GA!30265!
!
!
! PLEASE!REVIEW!COMPLETE!WARRANTY!CONDITIONS.!
!
WARRANTY!HIGHLIGHTS!
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! PARTS:!2!YEARS!AFTER!SHIPMENT!FROM!FACTORY!UNLESS!
OTHERWISE!NEGOTIATED.!
!
! LABOR:!90!DAYS!AFTER!SHIPMENT.!
! DRILLING!INTO!THE!TOP!OF!THE!HGM300!OR!RDM800!CASE!VOIDS!
WARRANTY.!
!
! ANY!WATER!FOUND!IN!THE!INFRARED!DETECTING!BENCH!VOIDS!
WARRANTY.!
!
! ANY!OBVIOUS!DAMAGE!VOIDS!WARRANTY.!
! CALL!ANYONE!LISTED!ABOVE!FOR!WARRANTY!QUESTIONS!OR!
CLAIMS.!
!
Rev.!10/22/01!!
J:/EDP/HGM300/WHOM!TO!CALL! AT!THE!!FACTORY.DOC!
HGM300/RDM800!mini!manual.doc
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