Bulletin G ・0-R/CM Ill

selas.

The Heat Technology Compan曹COMPLETE-MIXQUAL・ 0 ・RIME_TER③

for Air/Gas Premixing Systems
Moni�ors and adju�ts combustible premix by• Better than oxygen analyzers fortemperature sensitive process• Recognizes changes in fuelquality before production is a行ected• Maintains uniform heat release andflame shape• Maximizes fuel efficiency• Uses fast-acting microprocessor
circuitry for control of fuel gas
quality• Pushbutton control with backlit
indication• Easy-to ・read digital display• Incorporates self-contained visualand audibleトalarn市• Alarm prevents false
円、ovement of mixing valve• Outputs for optional recorder andremote alarm device• Control panel can be remotely
mounted from sensing unit

ariatlons in fuel gas compo鍋ion that
伺 U鵠 deviations in heating quality arecommon. Even stable natural gases varybecause of the well source, method of
extraction and later mixing with othersource gases In the distribution system.

Some gases are stored In caverns,
mixed with so・舗”ed lnterchang銅ble
mixtures or both. The Seias Qual・0・
Rlmeter guards c尚ical heating appll·
cations against such fuel gas variations.

QUAL·O・RIMETERBURNERS/PROCESS

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月盛ーTHERMALLY BALANCEDCOMBUSTION CHAMBER

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COMPLETE MIX SYSTEM

aintaining constant heat on the work
surface The temperature of the flame ina gas-fired process depends on several
independent variables. Air/gas ratio is oneof them. The others include the composition
and Btu content of the gas, air temperatureand humidity. All these variables must be
monitored to maintain a constant flame
temperature. That is why the Qual-0 ・Rimeterhas gained wide acceptance in hundreds of
installations for over 30 years for applications
that include glass processing, tempering,brazing and food processing.
ow, microprocessor control
The original Qual-0 ・Rimeter which usedanalog controls has now been replaced with
Model G ・0-R/CM Ill. This new model uses
the same time-proven method of thermal
analysis plus the many user benefits madepossible by microprocessor control.

igital displays
All readouts on the Model Q-0・R/CM
Ill are digital, so that settings can be mademore precisely and read more quickly.
A built-in alarm is supplied in the unlikely
event that a system problem occurs.
Terminals for a remote alarm are provided.
emote control and recording
When remote control is required, thecontrol panel can easily be installed awayfrom the sensor unit. The unit can be pro­vided with a recorder to maintain a per­manent temperature record.

uI/recision Combustion Monitoring andControl The Selas Complete-Mix
Qual-0 ・ Rimeter monitors and automaticallycorrects the air/gas mixture to maintainuser-set requirements. It does so by duplト
cating in miniature, within the instrument,
an actual heating system. As shown in thesystem diagram, the Q-0 ・ R monitors theactual heating system within this instrument.
A continuous sample of air/gas mixture
passes through a pressure regulator andcontrol orifice. It is burned in a thermallybalanced combustion chamber. The flow of
the mixture and the combustion temperatureis a仔ected by any change in the combustion
variables such as gas chemistry, heating
value of the gas, air temperature, pressureand humidity.
When the Q-0 ・ R senses a change in the
flame temperature, the G ・ O・ R will adjust theblend. A microprocessor signals the exter­
nal ratio control valve which adjusts theblend of gas in the mix blend system until
the flame sample returns to its preset
condition.

asy·to・use controls. POWER-Tur…instrument. Power is
115 or 230 VAC, 50/60 Hz.
.!GNITER ー Ignites the sample flame in
the thermally balanced combustion
chamber.
.CONTROL -lndica恰s and switches
the instrument to automatic control
mode.
·�TAND·BY ー Indicates and switches
instrument to manual mode.
.A凶RM仙C ー Indicates and silences
alarm. The alarm is actuated when thefuel quality deviates from a user-set value
or if thermocouple burnout occurs. An alarm
automatically switches the instrument tostand-by mode to prevent false movementof the remote air/gas ratio controller.
!MICROPROCESSOR CONTROLLER Digitally displays setpoint and chamber
temperature and positions remote air/gas
ratio controller. Internal electronic limit
switches limit output or setpoint within asafety band. A S配urity lockout feature
prevents unauthorized changes in configura­tion. It utilizes standard PIO controller typeprocess control tuning. Process setpoint
can be changed by the Up/Down arrow keys.

pecifi伺tions of CM Ill
Qual·O・Ri 『n eter
Fuel: Combustible gas mixture of naturalgas, propane, butane or manufactured gas
containing not more than 55% hydrogen by
volume. Mixture must contain 80% to 100%f the air required for complete combustion.
(Call factory for special conditions.)
Inlet Pressure: Premixed fuel from 16 inches
w.c. to 5 psig (400mm to 0.3 ATM).
Fuel Consun司ption: 2000 Btu per hour
(500 Kcal/hr.)
Power Supply: 115/230 VAC, 50/60 Hz
Controller: Honeywell UDC-3000
Position proportional output with slide wire
feedback - 100 to 1000 ohms
Remote Actuator Interfacing: Field
selectable: direct drive such as Foxboro
Jordan - standard with Selas mixing valve;or sliding winding type such as Barber
Coleman, EA Medium Torque Series.
Contacting Rating of Relay for External
Load: 3 Amps
Ignition: By electric spark, ignition trans·
former mounted within the instrument cabinet
Inlet Connection: 1/4・inch NPT internal
thread (U.S. Std.)
Measurement Characteristics: Based on
a complete mixture of air and natural gas;other conditions in relative proportions.
Sensitivity... ±2 Btu per cu.代. (±18 Kcal/m 3)of fuel gas.
±0.5% air by volume in air/gas mixture.
Reproducibility... 20 Btu per cu. ft.
(180 Kcal/m 3) of fuel gas, and 2% air/gas
ratio, over extended periods of operation,
without recheck of zero.
Control Capability... Based on a complete
mixture of air and natural gas; otherconditions in relative proportions.
Btu (fuel gas）…±10 Btu per cu.代. of。

.？..�，.9§:.

Selas S.A.
71, rue Rivay
92300 Levallois-Perret
Tel.・（1) 47.37.56.60
Telex:・610269
F似. (1) 47.37.88.21
FRANCE
R9010M690

natural gas (or equivalent) (±90 Kcal/m 3)
Btu (mixture）…土1 Btu per cu.代(±9 Kcal/m 3)
Combustibles…±0.70%
Excess Air...±1.25%
Oxygen... ±0.25%
Response ... 90% in approximately one
minuteWarm-Up: 30 minutes
Ambient Te円、perature Compensation:±2% of scale between 45 ° F and 110 ° F(? ° C and 44 ° C)
Mounting: Wall, surface or flush on panel,such that cooling air circulates throughlouvres from lower outside through top of
instrument case.
町mensions: 143/s in. wide x 203/4 in. highx 1O in. deep (365mm wide x 527mm highx 250mm d田p) including door latch.向nel
cut-out is 12% in. wide x 19 in. high(311mm wide x 483mm high)Shipping Weight:
Approximately 75 lbs (34 kg),,

rdering Information
Please specify fuel gas, specific gravity,
heating value, and degree of blend.
Ordering
CodeComplete-Mix
G・O·R/CM Ill
Qual-0・Ri 『neter
ARA
Automatic Ratio Adjuster
For use with Automatic CM
Qual-0・Rimeter when CM
Qual-0・Rimeter will be used
to monitor a Selas Combustion
Controller or Mixing Valve.
Please specify Combustion
Controller model, number, serial
number, and valve serial
number.
CMA・CCR
Circular Chart Recorder

Selas Corporation of America
P.O. Box 200, Dresher, PA 19025, U.S.A.
Tel: (215) 646・6600, Toll Free (800) 523・6500
in Pennsylvania (800) 562 ・5389
Telex: 244472, Telefax: (215) 646 ・3536

Selas warmetechnik GmbH
SchlOterstrasse 95
4000 DOsseldorf 1
Tel.: (02 11) 23 72 21
Telex: 8 584 638
Fax: (02 11) 23 74 75
GERMANY

Selas lt a liana S.R.L.
Via delle Tuberose 14
20146 Milano
Tel.: (02) 4158497
Telex: 353472
Fax: (02) 483 02211
ITALY

Nippon Selas Co., Ltd.
4-3 Arakawa 7心home
Aralくawa-Ku Tokyo 116
Tel.: (03) 807-9591
Telex: 2655466
Fax: (03) 807・ 9594
JAPAN
Printec in USA

Bulletin G ・0-R/RG”1selas.

The Heat Tech『，ology Compan曹RAW-GASQUAL-0・RIMETER®

for Gas Blending Systems and Fuel Monitoring
Monitors and adjusts raw fuel gas quality
for processes that depend on
fuel stabilization• Recognizes changes in fuelcomposition before production isaffected• Maintains uniform heat release andflan可e shape• Maximizes fuel efficiency• Uses fast-acting microprocessor
circuitry for control of fuel gas
quality• Pushbutton control with backlit
indication• Easy-to・read digital display
Incorporates self-contained visualand audible alarm• Alarm indicates excessive
movement of mixing valve• Outputs for optional recorder andremote alarm device• Control panel can be remotely
mounted from sensing unit・

he Se胸 s QuaI・0・Rlmeter is used toeliminate deviations ll'l heating qua附y伺used by common deviations In fuelgas compos 代ion. Fuel gas 浦市tlons arenormal. Even stable natura! gases vary
upon the well s urce，『nethod of extraction
and subsequent mixing with other。

“source gases In the ma』or distribution
systems. S me ga鍋s are stor In錨verns and/or mixed with 鈎伺l拘dlnterchang舗ble mixtures. As a resu怜，many c 州儲l heating appll伺tlons are
a符ected by deviations In fuel gas
composition.

。

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OUTLET PRESSUREI SENSING LINE
AIR FAILURE
PRESSURE SWITCH

\
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,,

BLOW OFFRELIEF W凶ESE LASELECTRICALLY OPERATEDMIXING VALVEMANUAL RESETSAFET Y SHUT-OFF VALVEPRECISION BLEND SYSTEM

ow, microprocessor control
The original Qual-0・Rimeter whichused analog controls has now been replacedwith Model Q-0・R/RG Ill. This new model
uses the same time-proven method ofthermal analysis plus the many user bene­fits made possible by microprocessor
control.
igital displays
All readouts on the Model G・0-R/RG Ill
are digital, so that settings can be mademore precisely and read more quickly.
A built-in alarm is supplied in the unlikely
event that a system problem occurs.
Terminals for a remote alarm are provided.
uel Stabilization
Accurately mixes a higher Btu fuel with
air to make a replacement for lower Btu fuelsuch as propane/air to produce a natural
gas replacement.

hen product quality depends upon
precise blending
The composition and Btu content of raw
gas can vary for several reasons. But, what­ever the reason, when the gas is being
used to fuel a temperature-sensitive process,such changes can adversely affect productquality. That ’s why the Selas Raw-Gas
Qual-0・ Rimeter precision combustion
monitor has found wide acceptance inindustries using gas-fired temperature­sensitive processes for over 30 years.
emote control and recording
When remote control is required, thecontrol panel can easily be installed awayfrom the sensor unit. The unit can be pro­vided with a recorder to maintain a per­manent temperature record.

recision Combustion Monitoring andControl The Selas Raw-Gas Qual-0Rimeter monitors and automatically corrects
fuel gas quality to user requirements. The
G・0-R continuously burns a small sampleof blended gas and instrument air in athermally balanced combustion chamber.
The temperature of the sample flame is
a行ected by a change in the blend ratio.
When equipped with an automatic ratio
adjuster (see system diagram), the G・0-R
will adjust the blend. A microprocessor
signals the external ratio control valve which
adjusts the blend of gas in the mix blend
system until the flame sample returns to thepreset condition.

asy-to・ use controls• POWER - Turns on instrument. Power is
115 or 230 VAC, 50/60 Hz.
．陥 NITER ー Ignites th

the thermally balanced combustion
chamber.

• CONTROL - Indicates and switches
the instrument to automatic control
mode.
• STAND-BY - Indicates and switches
instrument to manual mode.
• ALARM·SILNC - Indicates and silences
alarm. The alarm is actuated when thefuel quality deviates from a useトset value
or if thermocouple burnout occurs. The
actuated alarm automatically switches the
instrument to stand-by mode to prevent
false movement of the remote air/gas ratio
controller.
．附CROPROC邸OR CONTROLLER

Digitally displays setpoint and flame
temperature and automatically positions
remote air/gas blender valve. Internal e恰c­tronic limit switches limit output or setpoint within a safety band. A security
lockout feature prevents unauthorizedchanges in configuration. It utilizes standard
PIO controller type process control tuning.
Process setpoint can be changed by the
Up/Down arrow keys.

peeifぬations of RG Ill Qual-0・Rimeter
Fuel: Combustible gas mixture of naturalgas, propane, butane or manufactured gas
containing not more than 55% hydrogen by
volume.
Inlet Pressure:
Raw Gas: 3 inches (??mm) w心minimumand 10 inches (254mm) w.c.
maximum
Fuel Consumption:
For natural gas: 2 cfh (.06m3/H) Raw Gas
18 cfh (.51m3/H) Inst. Air
Power Supply: 115/230 VAC, 50/60 Hz
Controller: Honeywell UDC-3000
Position proportional output with slide wire
feedback - 100 ・ 1000 ohms
Remote Actuator Interfacing: Field
selectable: direct drive such as Foxboro
Jordan - standard with Selas mixing valve;or sliding winding type such as Barber
Coleman, EA Medium Torque Series.
Contacting Rating of Relay for External
Load: 3 Amps
Ignition: By electric spark, ignitiontransformer mounted within the instrument
cabinet.
Inlet Connection: 1 /4・inch NPT internal
thread (U.S. Std.)
Measurement Characteristics: Based on
a complete mixture of air and natural gas;other conditions in relative propo吋ions.
Sensitivity... ±0.2% of higher heating value±0.5% air by volume in air/gas mixture
Reproducibility... 20 Btu per cu. ft. of naturalgas (or equivalent) (180 Kcal/m3) overextended periods of operation without
recheck of zero.
Control Capability... Based on a complete.？..巨

Selas S.A.
71, rue Rivay
92300 Levallois·Perret
Tel.: (1) 47.37.56.60
Telex: 610269
Fax ：・（1) 47.37.88.21
FRANCE
R9010M690

te�.：.

mixture of air and natural gas; otherconditions in relative proportions.
Btu (fuel gas） … ±10 Btu per cu.代. ofnatural gas (or equivalent) (±90 Kcal/m 3)
Response... 90% in approximately one
minuteWarm-Up: 30 minutes
Ambi_ent Temperature Compensation:
士2% of scale between 45 ° F and 110 ° F(7 。 C and 44 ° C)
Mounting: Wall, surface or flush on panel,such that cooling air circulates throughlouvres from lower outside through top of
instrument case.
Dimensions: 143/s in. wide x 203/4 in. highx 10 in. deep (365mm wide x.527mm highx 250mm deep) including door latch.向nel
cut-out is 12% in. wide x 19 in. high(311mm wide x 483mm high)Shipping Weight:
Approximately 75 lbs (34 kg)'Irdering Information
Please specify fuel gas, specific gravity,
heating value, and degree of blend.
Ordering
Code
Raw-Gas Qual·O・Ri『neter O・O·R/RG Ill
Automatic Ratio Adjuster
ARA
For use with Automatic RG
Qual-0・ Rimeter when RG
Qual-0・ Rimeter will be used
to monitor a Selas Blender
Valve. Please specify Com·bustion Controller model,
number, serial number, andvalve serial number.
RGA・CCR
Circular Chart Recorder

Selas Corporation of America
P.O. Box 200, Dresher, PA 19025, U.S.A.
Tel: (215) 646・ 6600, Toll Free (800) 523・ 6500
in Pennsylvania (800) 562・5389
Telex: 244472, Telefax: (215) 646-3536

Selas W轟rmetechnik GmbH
Schli.iterstrasse 95
4000 DOsseldorf 1
Tel.: (02 11) 23 72 21
Telex: 8 584 638
Fax: (02 11) 23 74 75
GERMANY

Selas ltaliana S.R.L.
Via delle Tuberose 14
20146 Milano
Tel.: (02) 4158497
Telex: 353472
Fax: (02) 483 02211
ITALY

Nippon Selas Co., Ltd.
4-3 Arakawa 7・Chome
Arakawa・Ku Tokyo 116
Tel.: (03) 807-9591
Telex: 2655466
Fax: (03) 807・9594
JAPAN
Printed in USA