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Rev.

 

10/22/01

 

 

HGM300/RDM800

 

mini

 

manual.doc

 

1

 
 
 
 
 
 

INTRODUCTION

 

TO

 

THE

 

HGM300/RDM800

 

YOKOGAWA

 

REFRIGERANT

  

                                                 

MONITOR

 

SYSTEM

 

 

 

 

 

 
 

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

 

ì Tî

 

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.

 
 

 

Proper

 

mounting

 

of

 

HGM300

 

and

 

RDM800

 

-

  

 

 

HGM300

 

Mounting

 

Specs

 

 

 

 

 

 

 

 

7.0"

14.0"

 

 
 
 
 

 
 
 
 
 
 
 
 

 

 

RDM800

 

Mounting

 

Specs

 

 

7.0"

9.0"

 

 
 
 
 

Archived 

Document

Summary of Contents for HGM300

Page 1: ...s and dual 4 20ma DC option if ordered RDM800 ñ Remote Display Module if ordered Charcoal filter with ì Tî 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 ala...

Page 2: ... pattern of air currents present in the mechanical room HGM300 RDM800 Refrigerant Gas leak monitor mechanical room placement Picture of HGM300 alarm wiring 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 th...

Page 3: ...AC Power In Out RS485 4 20 mAdc Main 120Volt Power Auxiliary Power 120Volt Used to supply power for audio visual alarms On Off Power Switch Dual 4 20 mAdc Outputs RS485 Node Address Switch Leak Spill Evacuate Fault alarm wiring block A r c h i v e d D o c u m e n t ...

Page 4: ...al doc 4 WIRING THE RDM800 Terminator for Building Automation RS485 Connector Terminator for HGM300 RS485 Connector HGM300 RS485 Connector Building Automation System RS485 Connector Main Power RDM800 relays A r c h i v e d D o c u m e n t ...

Page 5: ...auxiliary power connector to the ë Commoní on the relay block Connect one end of strobe or horn to the ë NOí 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 ë Lineí of the auxiliary power connector Max 5AAC LEAK SPILL EVACUATE FAULT 1 2 3 4 Line Neutral Line Neutral Strobe Horn A r c h i v e d D o c u m e n ...

Page 6: ...o 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 d...

Page 7: ...ng the up down keys select the proper refrigerant gas for this zone then press ì ENTERî 4 Press the ì DISTANCEî 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 î ENTERî Note ñ to disable a zone set the distance to ì 0î 5 Press ì AVE TEMPî This function is used to ì standardizeî the readings to ì Standard Temperature and Pres...

Page 8: ...rted 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 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 ...

Page 9: ... type for that zone ñ HIGHLIGHT the gas type and press ENTER 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 To close or bypass a zone set the DISTANCE to 0 feet Saving the program to a disk or C drive Saving an HGM300 program to a disk or the ëCí drive 1 ...

Page 10: ...then eight alarms additional screens can be displayed by pressing the MORE button Each active alarm is indicated by a blinking box as an alarm is acknowledged the box stops blinking 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 Refrigeran...

Page 11: ...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 LOG INTERVAL AND TREND SCREEN The HGM300 retains a data log of 100 measurements per zone...

Page 12: ...he 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 101st value will replace the first stored value 1 Working with the fault screens WORKING WITH THE FAULT SCREENS A From the ì SYSTEMî screen press the button adjacent to ì FAULTî This ...

Page 13: ... 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 fro...

Page 14: ...erify 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 Reset to factory default settings Hold down the left most button inside the HGM300 ñ cycle the power off then o...

Page 15: ... 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 ...

Page 16: ...th 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 weath...

Page 17: ... x5143 jeff summers yca com SHIPPING ADDRESS YOKOGAWA CORP OF AMERICA 2 DART ROAD NEWNAN GA 30265 WARRANTY HIGHLIGHTS PLEASE REVIEW COMPLETE WARRANTY CONDITIONS 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...

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