G460 Field Operation Manual
G460
Multi-gas Detector
Field Operation Manual
1194 Oak Valley Dr, Ste 20, Ann Arbor MI 48108 USA
(800) 959-0329 • (734) 769-0573 • www.goodforgas.com
Warranty
GfG Instrumentation warrants our products to be free from
defects in material and workmanship when used for their intended
purpose, and agrees to remedy such defect or to furnish a new
part (at the option of GfG Instrumentation) in exchange for any
part of any product we manufacture that under normal use is
found to be defective; provided that the product is returned by the
purchaser to GfG’s factory, intact, for our examination, with all
transportation costs prepaid, and provided that such examinations
reveals, in our judgment, that it is defective.
This warranty does not extend to any products that have
been subjected to misuse, neglect, accident or unauthorized
modifications; nor does it extend to products used contrary to the
instructions furnished by us or to products that have been repaired
or altered outside of our factory or by a non-authorized service
center. No agent or reseller of GfG Instrumentation may alter the
above statement.
This warranty is expressly in lieu of any and all other warranties
and representations, express or implied, including but not limited
to, the warranty of fitness for a particular purpose. GfG will not be
liable for loss or damage of any kind connected to the use of its
products or failure of its products to function or operate properly.
The G460 has a limited lifetime warranty to the original purchaser
(as long as the instrument is in service). Accessories (battery
packs and chargers, sampling pumps and other components),
which by their design are consumed or depleted during normal
operation, or which may require periodic replacement are
warranted for one year from the date of purchase. O2, LEL, CO,
H2S, COSH and CO2 sensors are covered for 3 years from date of
purchase. PID and all other sensors are warranted from 6 months
to 2 years.
Introduction
The purpose of this manual is to provide day-to-day basic information
for the G460. Please refer to the accompanying CD-ROM to access the
complete user’s manual. The G460 is a handheld detector for personal
protection from gas hazards. The instrument measures continuously
in diffusion mode and gives visual and audible alarms if a gas-induced
danger arises.
The G460 is a safety device and it is up to the user to ensure proper
action is taken in the event of an alarm.
The following signal words, as defined by ANSI Z535.4-1998, are used in
this guide.
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which if not
avoided, may result in moderate or minor injury.
Safety Information
The G460 must only be operated as specified in this manual, otherwise
the instrument’s protection may be diminished. Please refer to ISARP12.13, Part II-1987 for guidance in use of this instrument.
Warnings
WARNING Never substitute any component as this may compromise the
G460s intrinsic safety.
AVERTISSEMENT Ne jamais remplacer les composants, car cela pourrait
compromettre la sécurité intrinsèque du G460.
WARNING For safety reasons, this equipment must be operated
and serviced by qualified personnel only. Read and understand the
instruction manual completely before operating or servicing the G460.
AVERTISSEMENT Pour des raisons de sécurité, cet équipement doit
être utilisé et entretenu par du personnel qualifié. Lire et comprendre le
manuel d’utilisation avant de faire fonctionner ou de réparer cet appareil.
WARNING Instrument should be calibrated before first time use and
then on a regular basis. Length of interval will depend on frequency of
use and contaminants and/or poisons being exposed to the sensors.
AVERTISSEMENT étalonner le détecteur avant la première utilisation,
puis à intervalles réguliers, en fonction de l’utilisation et de l’exposition du
capteur aux poisons et des contaminants.
WARNING If the combustible sensor may be exposed to a known
poison (silicon, sulfur, halogenated compounds, etc), GfG recommends
checking it against a known concentration of calibration gas before use.
AVERTISSEMENT Si le capteur de gaz combustible peut être exposé
à un poison connu (silicium, le soufre, les composés halogénés, etc)
GfG recommande de vérifier contre une concentration connue de gaz
d’étalonnage avant utilisation.
Design
5
1
6
2
7
3
8
4
9
10
Item
1
2
3
4
5
6
7
8
9
10
Description
Hook for carrying strap
Alarm LEDs
Horn
Screw connectors for pump
Display
Push buttons
Diffusion inlets
Contacts for accessories
Battery pack screws
Battery pack (accessible from back)
Display
5
1
6
2
7
3
4
6
Item Description
1
Clock
2
3
4
5
Flashlight indicator
Battery charge level indicator
Peak indicator
Alarm Status (backlight)
Green - No alarms
Orange - Alarm 1
Red - Alarm 2 or 3
Gases
Gas readings
6
7
1
Push
Button
1
2
3
1+3
2+3
1+2
2
3
Description
Activate Peak
Hold to turn on optional flashlight
Reset latching alarm
Hold to enter service mode
View one gas at a time or STEL/TWA
Press to turn on monitor (when off)
Hold to turn off monitor (approximately 5 seconds)
Rotate the display 180°
Enter calibration mode
% Vol measurement (if equipped)
Battery Installation
Batteries must not be replaced in hazardous locations.
Replace only in non hazardous locations.
Piles ne doivent pas être remplacés dans des endroits
dangereux. Remplacez uniquement dans des endroits non
dangereux.
Turn the detector off before you replace the batteries. To replace
the batteries or battery pack, unscrew the two screws on the front
of the detector and pull the whole pack backwards or insert the
allen wrench through one of the screw holes to push the pack
backwards.
When the alkaline batteries have to be replaced, use the allen
wrench to push the two battery cells out through the PCB holes.
When inserting new batteries, check for the correct polarity (see
plastic holder). Use only size AA batteries, Duracell MN1500 LR6.
Secure the supply module by replacing the two screws.
NOTE: Failure to use Duracell AA batteries will void the warranty.
Utilisez uniquement des piles AA, Duracell MN 1500 LR6.
Maintenance and Inspection
Maintenance includes service, calibration and adjustment, as
well as repair if it is necessary. Gas monitoring devices can react
differently depending on environmental conditions. It is important,
independent from maintenance duties, to test the device before
putting it into operation each day. Bump testing before each use
is highly recommended. The casing can be cleaned with a damp
cloth. Never use solvents or detergents!
Calibration Procedure
Calibration is a two step procedure. The first step is the Fresh
Air AutoCal® adjustment. In this step the readings of the sensors
are automatically adjusted to equal the values expected in fresh
air, (20.9% O2, 0% LEL combustible gas, and 0 PPM (parts per
million) for toxic sensors such as CO and H2S).
To perform a Fresh Air AutoCal® adjustment:
1. Make sure the instrument is located in fresh air (20.9%
oxygen, and no measurable flammable or toxic contaminants)
2. Turn the instrument on and allow the readings to stabilize fully.
3. Attach the calibration adapter to the instrument.
4. The instrument will automatically recognize that the adapter is
attached, and display the AutoCal® menu screen.
5. Push the “Air” button to initiate the Fresh Air adjustment.
6. The instrument will automatically count down, then begin the
adjustment process.
7. The display will list the sensors installed, and show a
checkmark by each sensor as the adjustment is completed.
8. After completing the Fresh Air adjustment the instrument will
return to normal operation.
9. Make sure to remove the calibration adapter before using the
instrument to detect gas.
The second step in a full calibration is the AutoCal® Gas
adjustment. In this step the sensitivity of the sensors is
automatically adjusted while the sensors are exposed to known
concentration calibration gas.
A single cylinder of all-in-one (Quad Mix) calibration gas may be
used to automatically calibrate CO, H2S and LEL sensors all at
the same time. Other types of sensors must be calibrated one
sensor at a time using the calibration gas that is appropriate for
that sensor.
To initiate AutoCal® Gas calibration using all-in-one (Quad-Mix)
calibration gas:
1. Make sure the instrument has been properly Fresh Air
adjusted before proceeding to the Gas calibration.
2. Attach the calibration adapter to the instrument. (If the adapter
is already attached, momentarily remove and replace the
adapter to display the AutoCal® menu screen,)
3. Turn the regulator on to begin flowing calibration gas to the
sensors and press “Gas”.
4. You will be prompted to verify that gas has been applied.
Press “Yes” to continue.
5. Allow the instrument to count down.
6. The display will show an hourglass icon by each sensor while
it is being adjusted, then a check mark when the adjustment is
complete.
7. Continue the calibration procedure for any remaining sensors
using the Single Sensor calibration procedure below.
8. Make sure to remove the calibration adapter before using the
instrument to detect gas.
NOTE: Single Sensor calibration is a Security Protected mode of
operation. The choices available in the Single Sensor calibration
mode permit users to change alarm levels as well as to change
the range and type of gas used to calibrate the sensor. Advanced
functions available in the Service Menu should only be accessed
and used by qualified individuals. Please call GfG for the correct
calibration gas and concentration to use for the sensors installed
in your instrument.
To initiate Single Sensor AutoCal® Gas calibration:
1. Be sure to calibrate the standard sensors as indicated
previously.
2. Make sure that the calibration adapter is still attached to the
instrument, and that the instrument is in the normal operation
mode showing readings for each installed sensor.
NOTE: If the calibration adapter is not already attached, when
you attach the adapter the instrument will display the AutoCal®
menu screen. Press the “Exit” button to display the normal
operation screen and continue as below.
3. Enter the service menu by pressing and holding down the
“Reset” button.
4. The instrument will display the Main Menu choices.
5.
6.
7.
8.
9.
Scroll down to the “Service” choice, then press “Select”.
Enter “1100” as the Security Code when prompted.
The display will show the Service Menu screen.
Highlight the “Sensors” choice, then press “Select”.
Use the down arrow key to choose the desired sensor, then
press “Select”.
10.The instrument will display the choices available for that
particular type of sensor.
11.Highlight the “Calibrate” choice, then press “Select”.
12.Turn the regulator on to begin flowing calibration gas to the
sensor, THEN press “Start”.
13.The display will show the sensor readings, the concentration
of “CalGas” being used to adjust the sensor, an hourglass icon
while the sensor is adjusted, and “OK” when the adjustment is
successfully completed.
NOTE: Make sure that the concentration of gas in the cylinder
matches the “CalGas” concentration shown on the instrument
display.
14.Repeat this process for each additional sensor as necessary,
or press “Exit” to return to normal operation. It will be
necessary to push “Exit” several times to get back to the main
reading screen.
15.You will be prompted to “SAVE NEW ADJUSTMENT”. You
MUST press the “Yes” button for the new calibration date and
values to be updated to the instrument’s memory.
16.Make sure to remove the calibration adapter before using the
instrument to detect gas.
NOTE: It may take a few minutes for the sensors to re-stabilize
at their normal fresh air values. Wait for the sensors to stabilize
completely before using the instrument to detect gas. If the
sensors fail to stabilize it may be necessary to make a Fresh Air
AutoCal® adjustment as explained previously.
Sensors may initially fail the Fresh Air or Gas Calibration
adjustment. It is usually worthwhile to repeat the failed procedure
at least once.
1. Make sure that the sensors (especially the combustible
sensor) have had a chance to warm up completely before
beginning the Fresh Air or Cal Gas adjustment. Five minutes
is usually sufficient.
2. Before making a Fresh Air adjustment, make sure that
the calibration adapter and tubing do not contain trapped
calibration gas.
3. Make sure the air used for the Fresh Air adjustment does not
contain measurable contaminants such as solvent vapors,
cigarette smoke or engine exhaust.
4. Make sure that the calibration gas cylinder has not run out of
gas.
5. Make sure the calibration gas cylinder, tubing and adapter are
properly connected to the instrument.
6. If the sensor still fails calibration, contact GfG Instrumentation
for additional advice.
7. Any sensor that fails to calibrate properly must be replaced
before using the instrument.
Alarms
If the measured gas concentration exceeds a pre-set threshold,
the monitor will give audible and visual alarms.
Alarm Type
Sensors
Oxygen
Instantaneous
Combustibles
Value (AL)
Toxic gases
# of
Alarms
3
3
2
Short Term
Value (STEL)
Toxic gases
1
Long Term
Value (TWA)
Toxic gases
1
Over Range
All
1
Under Range
All
1
Description
An instantaneous alarm
is activated immediately
if the gas concentration
exceeds or falls below
a pre-set threshold.
The alarm values are
adjustable.
The short-term exposure
limit (STEL) is the
average concentration
over a short period of
time (e.g. 15 minutes).
The STEL alarm is
not latching; it resets
automatically as soon as
the concentration falls
below the threshold.*
The time weighted
average (TWA) refers
to an 8-hour shift and
calculates the average
concentration. The TWA
alarm cannot be reset. It
is only de-activated if the
detector is switched off.*
The screen will display
The screen will display
*Note: To avoid possible personal injury, do not turn off the
detector during a work shift. TWA, STEL and Max readings are
reset when the G460 is turned off.
If the detection range of the LEL sensor is exceeded, the display
will read “
”, indicating it is over range, instead of a value for
gas concentrations above 110% LEL. To protect the sensor from
damage, the device turns off the sensor. However, the audible
and visual alarms and the “
” message remain active. The
alarms must be reset by pushing the RESET key. The display
will read: “Fresh air?” If you have made sure that there is no
combustible gas in the vicinity of the CH4 sensor, press yes to
resume detection.
Service
Service consists of the maintenance, inspection and repair of the
gas monitoring device. A function test should be performed before
each day’s use.
•
•
•
•
•
•
•
Status of the zeropoint
Charging status of the battery
Pump and diffusion inlet
Display with zero gas and standard test gas and adjustment, if
necessary
Alarm signal release, e.g. with alarm test gas
Constantly amplified signal with standard test gas
Response time
Any repair of the G460 must be done according to the
manufacturer’s instructions and with genuine parts.
Troubleshooting
Symptom
Solution
No power
No gas response
Check/charge battery
Check/replace sensor (see
complete user manual)
Perform autozero
Alarms in clean (fresh) air
Specifications
Dimensions: 2.95x4.33x2.17 in (75x110x55 mm)
Weight: 10 oz (280 g) with O2/LEL/CO/H2S sensors, 14 oz (380 g) with above
plus IR, CO2 or PID
Climate conditions:
Temperature: -4 to +131°F (-20 to +55°C)
Humidity: 5 to 95% r.h. (non-condensing)
Pressure: 700 to 1300 hPa
Detection Range: Please refer to complete operating manual “Sensor Types and
Detection Ranges”
Sensor type: Please refer to complete operating manual “Sensor Types and
Detection Ranges”
Alarm Conditions: Alarm 1, Alarm 2, Alarm 3, TWA, STEL, battery, confidence blip
Vibrating alarm: standard
Audible alarm: 103 dB at 30 cm
Display: Illuminated LCD full graphic display
Visual alarm: Bright, 360° wraparound LEDs plus heterochromatic (green/orange/
red) backlight display
Backlight: Automatic when a button is pressed or any alarm condition is activated
Self-test: Initiated upon start up.
Calibration: Manual or automatic.
User options: Location ID, User ID, Confidence blip, audible alarm levels
(103 dB, 95 dB, or 0 dB), display contrast, time, next inspection date, language
selection, adjustable alarm levels, disable vibrating alarm, latching alarm 2,
sensor deactivation, combustible sensor (0-100% LEL or 0-5% vol), set span
values, autosave and datalogging (mode and interval)
Battery operating time: Up to 25 hours with LEL and toxic sensors; up to 18 hours
with IR CO2 or PID sensors
Approved batteries: GfG NiMH rechargeable battery pack or Duracell MN1500
LR6
Battery charger: GfG cradle charger
Charge: up to 6 hours
Warranty: Limited lifetime on instrument and electronics; 3 yrs from date of
purchase for O2, LEL, CO, H2S, COSH and CO2 sensors. PID and all other
sensors are between 6 months to 2 years.
Approvals: cCSAus
Approved: Class I, Division 1, Group A, B, C, and D
Class I, Zone 0: Ex ia IIC T3
Standards: ATEX: II 2G EEx ia d IIC T3/T4
CSA C22.2 No. 152-M1984
UL 913
ANSI / ISA-12.13.01-2000
EMI/RFI resistance: EMC directive 89/336/EEC
Caution
WARNING Never substitute any components as this may compromise the
G460s intrinsic safety.
AVERTISSEMENT Ne jamais remplacer les composants, car cela pourrait
compromettre la sécurité intrinsèque du G460.
WARNING For safety reasons, this equipment must be operated and serviced
by qualified personnel only. Read and understand the user manual completely
before operating or servicing this device.
AVERTISSEMENT Pour des raisons de sécurité, cet équipement doit être utilisé
et entretenu par du personnel qualifié. Lire et comprendre le manuel d’utilisation
avant de faire fonctionner ou de réparer cet appareil.
WARNING Do not use the detector if it is damaged. Before you use the
detector, inspect the case for cracks or missing parts.
AVERTISSEMENT Ne pas utiliser le détecteur s’il est endommagé. Avant
d’utiliser le détecteur, inspectez le cas de fissures ou de pièces manquantes.
WARNING If the detector is damaged or something is missing, contact GfG
Instrumentation, Inc. immediately.
AVERTISSEMENT Si le détecteur est endommagé ou qu’il manque quelque
chose, contactez GfG Instrumentation Inc. immédiatement.
WARNING Calibrate the detector before first-time use and then on a regular
schedule, depending on use and sensor exposure to poisons and contaminants.
AVERTISSEMENT étalonner le détecteur avant la première utilisation, puis à
intervalles réguliers, en fonction de l’utilisation et de l’exposition du capteur aux
poisons et des contaminants.
WARNING GfG recommends that you “bump test” the sensors before each
use to confirm their ability to respond to gas. To do this, expose the detector to
a gas concentration that exceeds the alarm set points. Manually verify that the
audible and visual alarms are activated. Calibrate if the readings are not within
the specified limits.
AVERTISSEMENT GfG vous recommande de “test cogner” les capteurs avant
chaque utilisation afin de confirmer leur capacité à répondre à gaz. Pour ce
faire, exposer le détecteur à une concentration de gaz qui dépasse les points de
consigne d’alarme. Vérifier manuellement que les alarmes sonores et visuelles
sont activées. Calibrer si les lectures ne sont pas dans les limites spécifiées.
WARNING It is recommended that the combustible sensor be checked
with a known concentration of calibration gas after any known exposure to
catalyst contaminants/poisons (sulfur compounds, silicon vapors, halogenated
compounds, etc).
AVERTISSEMENT Il est recommandé que le capteur de gaz inflammables être
vérifié avec une concentration connue de gaz d’étalonnage après une exposition
connue à catalyseur contaminants / poisons (composés soufrés, des vapeurs de
silicium, composés halogénés, etc)
WARNING The combustible sensor is factory calibrated to 50% LEL methane.
If monitoring a different combustible gas in the % LEL range, calibrate the sensor
using the appropriate gas.
AVERTISSEMENT Le capteur de gaz combustible est calibré en usine à 50%
LIE méthane. Si le suivi d’un autre gaz combustible dans la gamme de% LEL,
étalonner le capteur en utilisant le gaz approprié.
WARNING High off-scale readings may indicate an explosive concentration.
AVERTISSEMENT Haute lectures hors échelle peut indiquer une concentration
explosive.
WARNING Only the combustible gas detection portion of this instrument has
been assessed for performance by CSA International.
AVERTISSEMENT Seule la partie de détection de gaz combustible de cet
instrument a été évaluée pour la performance par CSA International.
WARNING Protect the combustible sensor from exposure to lead compounds,
silicones and chlorinated hydrocarbons. Although certain organic vapors (such as
leaded gasoline and halogenated hydrocarbons) may temporarily inhibit sensor
performance, in most cases the sensor will recover after calibration.
AVERTISSEMENT Protégez le capteur de gaz combustible à partir de
l’exposition au plomb, composés silicones et des hydrocarbures chlorés.
Bien que certaines vapeurs organiques (comme l’essence au plomb et les
hydrocarbures halogénés) peuvent inhiber temporairement les performances du
capteur, dans la plupart des cas, le capteur va récupérer après calibration.
WARNING For use only in hazardous locations where oxygen concentrations
do not exceed 20.9% volume (v/v).
AVERTISSEMENT A utiliser uniquement dans des endroits dangereux où les
concentrations d’oxygène ne dépasse pas 20,9% en volume (v / v).
WARNING Any rapidly increasing reading followed by a declining or erratic
reading may indicate a gas concentration beyond the upper scale limit, which
may be hazardous.
AVERTISSEMENT Toute lecture augmente rapidement suivie par une lecture
diminution ou irrégulière peut indiquer une concentration de gaz au-delà de la
limite supérieure de l’échelle, ce qui peut être dangereux.
WARNING Extended exposure of the G460 to certain concentrations of
combustible gases and air may stress detector elements, which can seriously
affect the device’s performance. If an alarm occurs due to a high concentration of
combustible gases, recalibration should be performed, or if needed, the sensor
replaced.
AVERTISSEMENT Une exposition prolongée de la G460 à certaines
concentrations de gaz combustibles et d’air peut souligner éléments détecteurs,
qui peuvent sérieusement affecter les performances de l’appareil. Si une alarme
se produit en raison d’une forte concentration en gaz combustibles, l’étalonnage
doit être effectué, ou en cas de besoin, le capteur remplacé.
WARNING Do not test the combustible sensor’s response with a butane
cigarette lighter; doing so can damage the sensor.
AVERTISSEMENT Ne pas tester la réponse des capteurs combustible avec un
briquet au butane, cela peut endommager le capteur.
WARNING Do not expose the detector to electrical shock and/or severe
continuous mechanical shock.
AVERTISSEMENT Ne pas exposer le détecteur de choc électrique et / ou sévère
choc mécanique continue.
WARNING Do not attempt to disassemble, adjust or service the detector unless
instructions for that procedure are contained in the manual and/or that part is
listed as a replacement part.
AVERTISSEMENT N’essayez pas de démonter, modifier ou réparer le détecteur
à moins que des instructions pour que la procédure se trouvent dans le manuel
et / ou la partie est répertorié comme une pièce de rechange.
WARNING Electromagnetic interference (EMI) signals may cause incorrect
operation of this detector.
AVERTISSEMENT interférence des signaux électromagnétiques (EMI) peut
entraîner un mauvais fonctionnement de ce détecteur.
WARNING The G460 with IR-EX 005 Sensor complies with the performance
requirements of CSA C22.2 No. 152 over the temperature range of 0 to 55 °C.
Outside this range, it exceeds the standard’s minimum tolerance requirements of
±3% of full scale. At -10°C it is -4% and at -20°C it is -5%.”
AVERTISSEMENT Le G460 avec IR-EX capteur 005 est conforme avec les
exigences de performance de la norme CSA C22.2 No. 152 au cours de la
plage de température de 0 à 55 C. En dehors de cette gamme, il dépasse les
exigences de tolérance aux minimales les normes de 3% la pleine échelle. A -10
° C, il est de -4% et à -20 ° C, il est de -5%.
Sensor Specifications
MK376-5 Electrochemical sensor for oxygen O2
Response time:
t50: <10 sec
t90: <20 sec
Pressure:
800...1200 hPa:
max. ±0.2Vol.% or
±2.5% of range
(referred to 1000 hPa)
Humidity:
0%...90% r.h.:
max. ±0.2Vol.% or
±2.5% of range
(referred to 50% r.F.)
max. ±0.5Vol.% or
±2.5% of display
(referred to 20°C)
Temperature:
-20...+50°C:
Expected lifetime:
3 years in air
MK344-5/-6 Electrochemical sensor for carbon monoxide CO
Response time:
t50: <15 sec
t90: <45 sec
Pressure:
800...1200 hPa:
max. ±3ppm or ±7% of
display
(referred to 1000 hPa)
Humidity:
15%...90% r.h.:
max. ±3ppm or ±7% of
display
(referred to 50% r.F.)
Temperature:
-10...+40°C:
max. ±3ppm or ±7% of
display
(referred to 20°C)
Temperature:
-20...+50°C:
max. ±3ppm or ±15% of
display
(referred to 20°C)
Cross
sensitivities:
C2H4<100%; C2H2<90%; Cl2<40%; H2<30%;
NO<30%; NO2<30%; H2S=0%; SO2=0%;
NH3=0%; C2H6O=0%
(*1)
Expected lifetime:
3 years
(*1): Displayed value with reference to the supplied gas concentration in the range of
maximum allowable concentration (MAC).
MK429-5/-6 Electrochemical sensor for hydrogen sulfide H2S
Response time:
t50: <15 sec
t90: <45 sec
Pressure:
800...1200 hPa:
max. ±2ppm or ±10% of
display
(referred to 1000 hPa)
Humidity:
15%...90% r.h.:
max. ±2ppm or ±10% of
display
(referred to 50% r.h.)
Temperature:
-10...+40°C:
max. ±2ppm or ±10% of
display
(referred to 20°C)
Temperature:
-20...+50°C:
max. ±2ppm or ±15% of
display
(referred to 20°C)
Cross
sensitivities:
SO2≈ 20%; NO2<-20%; CO<1%; NO<0,2%;
H2<0,1%; (*1)
Expected lifetime:
3 years
MK211-6 Catalytic combustion sensor for combustible gases and vapors
Response time:
t90: <30 sec
Pressure:
950....1100 hPa:
max. ±5% of range or
±15% of display
(referred to 1000 hPa)
Humidity:
5%...90% r.h.:
max. ±5% of range or
±15% of display
(referred to 55% r.h.)
Temperature:
-20...+ 50°C:
max. ±3% of range or
±10% of display
(referred to 20°C)
Cross sensitivities : 2.00Vol.% H2: approx.140%;0.70Vol.% C4H10: approx.72%;
at 50%LEL:
2.20Vol.% CH4: 100%;0.70Vol.% C5H12: approx.71%;
0.85Vol.% C3H8: approx.85%;0.50Vol.% C6H14: approx.55%;
The above information refers to the detection range for methane. It may vary from sensor
to sensor and depends on the gas concentration and on the age of the sensor.
Expected lifetime:
3 years
MK222-2/-3 Photo-ionisation sensor for toxic combustible vapors Isobutylene i-C4H8
Response time:
t90: <30 sec
Ionisation potential:
10.6 eV
Cross sensitivities:
Kerosene: approx.250%; C8H8: 250%; C7H8: 190%; C6H6: 190%;
Diesel: approx.110; Benzine: approx.90%; C3H60: 83%; C8H18:
45%; C7H16: 40%; H2S: 30%; C6H14: 22%; NO: 14%; NH3: 11%;
C5H12: 10%; C4H10=C3H8=CH4=H2=0%
Expected lifetime:
3 years
MK224-5/MK231-5 Infrared sensor for carbon dioxide CO2
Response time:
t50: <20 sec t90: <50 sec t10 <50 sec @ CO2
Pressure:
70...130 hPa:
<1.6% of display per 1%
pressure change
(referred to 100 hPa)
Humidity:
0%...95% r.h.:
max. ±0.01Vol% or ±2% of
display
(referred to 50% r.h.
@20°C)
Temperature:
-20...+55°C:
max. ±0.02Vol% or ±10%
of display
(referred to 20°C)
Cross sensitivities:
max. ±0.01Vol% or ±2% of
display
(under laboratory
conditions)
Expected lifetime:
6 years
MK227-5/MK231-5 Infrared sensor for combustible gas
Response time:
Pressure:
t50: <20 sec
t90: <45 sec
@ CH4
(Methane)
t50: <25 sec
t90: <66 sec
@ C3H8
(Propane)
t50: <30 sec
t90: <99 sec
@ C6H14
(n-Hexane)
t50: <55 sec
t90: <371 sec
@ C9H20
(n-Nonane)
70...130 hPa:
<1.5% of CH4 -display
per 1% pressure
change
(referred to 100 hPa)
<1.2% of C3H8 -display
per 1% pressure
change
(referred to 100 hPa)
Humidity:
0%...95% r.h.:
max. ±2.0%Vol or ±15%
of display
(referred to 0% r.h.
@40°C)
Temperature
-20...+50°C:
max. ±2.0%Vol or ±10%
of C3H8 display
(referred to 20°C)
Expected lifetime:
6 years
Accessories and Replacement Parts
Part Number
Batteries, alkaline (AA)
4002-001
Battery hardware kit (includes 6 screws and hex key)
4003-450
Battery pack, alkaline (without batteries) with vibrator
1450-202
Battery pack, rechargeable NiMH with vibrator
1450-211
Battery pack, rechargeable NiMH with vibrator and lights
1450-212
Cable, data downloading / USB interface (for PC)
1650231
Calibration adapter with tubing
7771-450
Calibration connector
1450225
Charger, plug-in (110 VAC) wall pack (for use with drop-in charger)
4001-650
Charger, vehicle
4001-650V
GfG Instrumentation, Inc.
1194 Oak Valley Dr.
Suite 20
Ann Arbor, MI 48108
USA
US/Canada: US/Canada Fax: International: International Fax: Website: (800) 959-0329
(734) 769-1888
+1 734 769 0573
+1 734 769 1888
www.goodforgas.com
Worldwide Manufacturer of Gas Detection Solutions
7004-460 Rev. 4 (10/30/13)
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