RKI Instruments FI-8000 Owner's manual

RKI Instruments FI-8000 Owner's manual
PT3E-0525
Optical Interferometric Gas
Concentration Meter
FI-8000
Operating Manual
(PT3-052)
<Contents>
1 Outline of the Product ......................................................................................................... 2
1-1. Preface .............................................................................................................................. 2
1-2. Purpose of use .................................................................................................................. 2
1-3. Definition of DANGER, WARNING, CAUTION and NOTE ................................................ 2
2 Important Notices on Safety ............................................................................................... 3
2-1. Danger cases .................................................................................................................... 3
2-2. Warning cases................................................................................................................... 5
2-3. Precautions ....................................................................................................................... 6
2-4. Safety Information ............................................................................................................. 8
3 Product Components .......................................................................................................... 9
3-1. Main unit and standard accessories .................................................................................. 9
3-2. Names and functions for each part ................................................................................... 12
4 How to Use ......................................................................................................................... 14
4-1. Before using the concentration meter ............................................................................... 14
4-2. Preparation for start-up ..................................................................................................... 14
4-3. Basic operating procedures............................................................................................... 18
4-4. How to start the concentration meter ................................................................................ 19
4-5. Measurement method (measuring mode) ......................................................................... 21
4-6. Manual Memory ................................................................................................................ 24
4-7. Measuring Gas/Range Detail Display ............................................................................... 25
4-8. Reference gas calibration ................................................................................................. 26
4-9. Setup mode ....................................................................................................................... 27
4-10. Recording measurement mode (pump suction type only) ............................................... 33
4-10. How to exit ...................................................................................................................... 39
5 Operations and Functions ................................................................................................... 40
5-1. CAUTION display .............................................................................................................. 40
5-2. ERROR display ................................................................................................................. 41
6 Maintenance ....................................................................................................................... 42
6-1. Maintenance intervals and items ....................................................................................... 42
6-2. Calibration ......................................................................................................................... 43
6-3. How to clean ..................................................................................................................... 43
6-4. Parts replacement ............................................................................................................. 44
7 Storage and Disposal ......................................................................................................... 45
7-1. Procedures to store the concentration meter or leave it for a long time ............................ 45
7-2. Procedures to use the concentration meter again ............................................................. 45
7-3. Disposal of products .......................................................................................................... 46
8
Troubleshooting .................................................................................................................. 47
9 Product Specifications ........................................................................................................ 50
9-1. List of specifications .......................................................................................................... 50
9-2. List of accessories............................................................................................................. 52
10
Definition of Terms ............................................................................................................ 53
11
Detection Principle ............................................................................................................ 54
Measuring Gas Specifications by Type .................................................................................... 55
-1-
1 Outline of the Product
1-1. Preface
1
Outline of the Product
1-1. Preface
Thank you for choosing our optical interferometric gas concentration meter FI-8000. Please check that the
model number of the product you purchased is included in the specifications on this manual.
This manual explains how to use the concentration meter and its specifications. It contains information
required for using the concentration meter properly. Not only the first-time users but also the users who
have already used the product must read and understand the operating manual to enhance the knowledge
and experience before using the concentration meter.
1-2. Purpose of use
This product is a portable concentration meter designed to measure concentration or density of gases, such
as halothane in oxygen and methyl bromide in the air.
The measuring gases and ranges vary by the type of FI-8000 you purchased. Check the type again before
use and perform gas measurement properly in accordance with purposes (see "Measuring Gas
Specifications by Type" at the end of this manual for identifying the type).
1-3. Definition of DANGER, WARNING, CAUTION and
NOTE
DANGER
This message indicates that improper handling may cause serious damage on
life, health or assets.
WARNING
This message indicates that improper handling may cause serious damage on
health or assets.
CAUTION
This message indicates that improper handling may cause minor damage on
health or assets.
NOTE
This message indicates advice on handling.
-2-
2 Important Notices on Safety
2-1. Danger cases
2
Important Notices on
Safety
2-1. Danger cases
DANGER
About explosion-proof

When using this gas detector in a hazardous area, take the following countermeasures for
preventing dangers resulting from electrostatic charges.
(1) Wear anti-static clothes and conductive shoes (anti-static work shoes).
(2) For indoor use, use the gas detector while standing on a conductive work floor (with a
leakage resistance of 10 MΩ or less).

【FI-8000】The battery units that can be connected are the BUL-8000(F)(TC21066),
BUL-8000 (F1)(TC21067), or BUD-8000(F)(TC21065).
 【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】The main unit that can be connected is
FI-8000(TC21064) only.
 【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】Do not attach and remove the battery unit in a
hazardous location.

【BUL-8000(F), BUL-8000(F1)】Charging has to be done with the dedicated AC adaptor in
non-hazardous area.

【BUL-8000(F), BUL-8000(F1)】The temperature should be between 0degree C and +40degree C.

【BUD-8000(F)】Do not attach and remove batteries in the dry battery unit in a hazardous
location.

【BUD-8000(F)】Use specified AA alkaline batteries (LR6 TOSHIBA) for the dry battery unit.

The specifications of the gas detector are as follows:
Sensor circuit
: Allowable voltage of 4.95 V, allowable current of 1.12 A, and
allowable power of 1138 mW
Pump circuit
: Allowable voltage of 4.95 V, allowable current of 0.834 A, and
allowable power of 853 mW
Buzzer circuit
: Allowable voltage of 4.95 V, allowable current of 0.431 A, and
allowable power of 441 mW
Main circuit
: Allowable voltage of 4.95 V, allowable current of 0.717 A, and
allowable power of 733 mW
Backup circuit
: 3.0 VDC, 10 µA
Ambient temperature
:-20degree C to +50degree C
-3-
2 Important Notices on Safety
2-1. Danger cases
DANGER
About explosion-proof

The specifications of the BUL-8000(F), BUL-8000(F1) are as follows:
Sensor circuit
: Maximum voltage of 4.25 V, maximum current of 1.12 A, and
maximum power of 901 mW
Pump circuit
: Maximum voltage of 4.25 V, maximum current of 0.768 A, and
maximum power of 618 mW
Buzzer circuit
: Maximum voltage of 4.25 V, maximum current of 0.410 A, and
maximum power of 330 mW
Main circuit
: Maximum voltage of 4.25 V, maximum current of 0.653 A, and
maximum power of 526 mW
Battery charging contact : Allowable current of 250 VAC 50/60Hz
Ambient temperature
: -20degree C to +50degree C

The specifications of the BUD-8000(F) are as follows:
Sensor circuit
: Maximum voltage of 4.95 V, maximum current of 1.12 A, and
maximum power of 1138 mW
Pump circuit
: Maximum voltage of 4.95 V, maximum current of 0.834 A, and
maximum power of 853 mW
Buzzer circuit
: Maximum voltage of 4.95 V, maximum current of 0.431 A, and
maximum power of 441 mW
Main circuit
: Maximum voltage of 4.95 V, maximum current of 0.717 A, and
maximum power of 733 mW
Power supply
: 4.5 VDC, 150 mA (LR6 3 pcs)
Ambient temperature
: -20degree C to +50degree C

Make sure that the product model on the nameplate is correct.
Inappropriate combinations of models deviate from the range of explosion-proof certification.

The nameplate shows the followings as well as the product model.
Product model
: Main unit: FI-8000
Lithium ion battery unit: BUL-8000 (F), BUL-8000(F1)
Dry battery unit: BUD-8000 (F)
Explosion proof class
: 【FI-8000】Ex ia IIC T4
【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】 Ex ia IIC T4
Ambient temperature
: -20 to 50ºC
Charging terminal rating : 【BUL-8000(F), BUL-8000(F1)】Allowable voltage AC250V 50/60Hz

Warnings
: 【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】
Inhibit to take off battery unit in non-hazardous area.

Manufacturer
: RIKEN KEIKI Co., Ltd.

IP protection class: IP20
About use

To measure a harmful or explosive gas, take a measure to prevent diffusion of the discharged
gas such as attaching a gas sampling bag to the gas outlet (GAS OUT).
-4-
2 Important Notices on Safety
2-2. Warning cases
2-2. Warning cases
WARNING
Sampling point pressure

The concentration meter is designed to draw gases around it under the atmospheric pressure.
If excessive pressure is applied to the gas inlet (GAS IN) and outlet (GAS OUT) of the
concentration meter, measuring gases may leak out from its inside and may cause dangerous
conditions. Be sure that excessive pressure is not applied to the concentration meter while
used.

Do not connect the gas sampling hose directly to a location with a pressure higher than the
atmospheric pressure. The internal piping system may be damaged.
Reference gas calibration in the atmosphere

When the reference gas calibration is performed in the atmosphere, check the atmosphere for
freshness before beginning the calibration. If interference gases (other than measuring and
base gases) exist, the adjustment cannot be performed properly, thus leading to dangers when
the gas leaks.
Battery level check

Before use, check that there remains sufficient battery power. When the concentration meter is
used for the first time or is not used for a long period, the batteries may be exhausted. Either
fully charge the batteries or replace them with new ones before use.

If a battery error occurs, measurement cannot be performed. If the error message is displayed
during use, turn off the power and promptly replace or charge the batteries in a non-hazardous
area.
Others

Do not draw a high-concentration gas beyond the measuring range. Accurate readings cannot
be obtained.

Do not throw the concentration meter into fire.

Do not block the buzzer sound opening. No buzzer sound can be heard.

Do not remove the battery unit while the power is on.

Use dry batteries of the specified ratings for the concentration meter.
-5-
2 Important Notices on Safety
2-3. Precautions
2-3. Precautions
CAUTION
Do not measure gases that contain interference gases.

If a measuring gas contains an interference gas (other than measuring and base gases),
accurate readings cannot be obtained.
Do not measure gases that contain interference gases.
The gas inlet and outlet should be at the atmospheric pressure.

Keep the gas inlet and outlet at the atmospheric pressure.
Do not use the concentration meter where it is exposed to oil, chemicals, etc. Do not submerge the
concentration meter under water on purpose.

Do not use in a place where the concentration meter is exposed to liquids such as oil and
chemicals.

The concentration meter, being compliant to IP67, is not water-pressure-resistant. Do not use
the concentration meter where a high water pressure is applied to it (under a faucet, shower,
etc.) or submerge it under water for a long time. The concentration meter is water-proof only in
fresh water and running water, and not in hot water, salt water, detergent, chemicals, human
sweat, etc.

The gas inlet and outlet are not water-proof. Be careful not to let water such as rainwater get
into these parts. Because this may cause trouble and gas cannot be measured.

Do not place the concentration meter where water or dirt gets accumulated. The concentration
meter placed at such a location may malfunction due to water or dirt that gets into the buzzer
opening, gas inlet, etc.

Note that drawing in dirty water, dust, metallic powder, etc. will significantly deteriorate the
sensor sensitivities. Be careful when the concentration meter is used in an environment where
these elements exist.
Do not use the concentration meter in a place where the temperature drops below -20ºC or rises
over 50ºC.

The operating temperature of the concentration meter is -20 to 50ºC. Do not use the
concentration meter at higher temperatures, humidities and pressures or at lower temperatures
than the operating range.

Avoid long-term use of the concentration meter in a place exposed to radiant heat (infrared
rays emitted from a high-temperature object) or direct sunlight.

Do not store the concentration meter in a sun-heated car.
Observe the operating restrictions to prevent condensation inside the concentration meter or gas
sampling hose.
Condensation formed inside the concentration meter or gas sampling hose causes clogging or gas
adsorption, which may disturb accurate gas measurement. Thus, condensation must be avoided. In
addition to the operating environment, carefully monitor the temperature/humidity of the sampling
point to prevent condensation inside the concentration meter or gas sampling hose. Please observe
the operating restrictions.
-6-
2 Important Notices on Safety
2-3. Precautions
Do not use a transceiver near the concentration meter.

Radio wave from a transceiver near the concentration meter may disturb readings. If a
transceiver or other radio wave transmitting device is used, it must be used in a place where it
disturbs nothing.

Do not use the concentration meter near a device that emits strong electromagnetic waves
(high-frequency or high-voltage devices).
Never fail to perform a regular maintenance.
Never fail to perform a regular maintenance to ensure safety. Continuing to use the concentration
meter without performing maintenance will result in inaccurate gas measurement.
Others

Operate the concentration meter using only the procedures described in this operating manual.

Do not drop or give shock to the concentration meter. The water-proof performance and
accuracy may be deteriorated.

Do not use the concentration meter while charging it.
-7-
2 Important Notices on Safety
2-4. Safety Information
2-4. Safety Information
The FI-8000 is an optical interferometer which is used for measuring gas concentration or calorie of
flammable gases in hazardous location.
It has two different suction styles, one is manual aspirating with squeezing a rubber bulb and other is
automatic suction by an internal micro pump.
The battery can be selected either Li-ion battery or alkaline dry battery.
Li-ion battery unit is called BUL-8000(F), BUL-8000(F1) and alkaline dry battery unit is called BUD-8000(F).
The battery unit structured in a way, that even the end user is possible to replace it.
Specification for safety
・Ex ia IIC T4 Ga
・
II 1 G Ex ia IIC T4 Ga
・Ambient temperature range for use : -20°C to +50°C
・Ambient temperature range during battery charging : 0°C to +40°C
Electrical data
・Power supply of Li-ion battery unit : BUL-8000(F), BUL-8000(F1)
Two parallel connected Li-ion cells used in battery pack BP-8000 are from type Maxell
INR18650PB1 or SDI INR18650-15M or SONY US18650VT3. Um=250V.
・Power supply of alkaline battery unit : BUD-8000(F)
Powered by three series AA size alkaline batteries, model LR6 by TOSHIBA.
Certificate numbers
・IECEx Certificate number : IECEx PRE 14.0061
・ATEX Certificate number :Presafe 14 ATEX 5711
List of standards
・IEC 60079-0:2011
・IEC 60079-11:2011
・IEC 60079-26:2006
・EN60079-0:2012
・EN60079-11:2012
・EN60079-26:2007
WARNING
・DO NOT CHARGE IN HAZARDOUS LOCATION.
・DO NOT CHARGE IT EXCEPT BY GENUINE CHARGER.
・DO NOT REPLACE BATTERY UNIT IN HAZARDOUS LOCATION.
・DO NOT REPLACE DRY BATTERIES IN HAZARDOUS LOCATION.
・DO NOT ATTEMPT TO DISASSEMBLE OR ALTER THE INSTRUMENT.
・USE ONLY WITH CONNECTED ALKALINE AA BATTERY, TYPE LR6
MANUFACTURED BY TOSHIBA.
INST. No. 0 0 0 0 0 0 0 0 0 0 0
AB C
D
E
A: Manufacturing year (0-9)
B: Manufacturing month (1-9,XYZ for Oct.-Dec.)
C: Manufacturing lot
D: Serial number
E: Code of factory
Phone
Fax
E-mail
Web site
: +81-3-3966-1113
: +81-3-3558-9110
: [email protected]
: http://www.rikenkeiki.co.jp
-8-
3 Product Components
3-1. Main unit and standard accessories
3
Product Components
3-1. Main unit and standard accessories
After opening the package, check the main unit and accessories.
If anything in the following list is not included, contact RIKEN KEIKI.
<Main Unit>
<Standard Accessories>
 Alkaline dry battery: 3
FI-8000 main unit
 Gas sampling hose: 1
 Shoulder strap: 1
Dry battery unit (BUD-8000(F))
 Handy aspirator: 1
(manual draw-in type only)
 Absorbing tube (contains calcium chloride)
and absorbing tube fixing belt
(anesthetic gas specification type only)
 Operating manual
 Measuring gas specifications
(attached when measuring gases are not included in
"Measuring Gas Specifications by Type" at the end of
this manual)
 Product warranty
DANGER
About explosion-proof

When using this gas detector in a hazardous area, take the following countermeasures for
preventing dangers resulting from electrostatic charges.
(1) Wear anti-static clothes and conductive shoes (anti-static work shoes).
(2) For indoor use, use the gas detector while standing on a conductive work floor (with a leakage
resistance of 10 MΩ or less).
-9-
3 Product Components
3-1. Main unit and standard accessories
DANGER















【FI-8000】The battery units that can be connected are the BUL-8000(F)(TC21066),
BUL-8000 (F1)(TC21067) or BUD-8000(F)(TC21065).
【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】The main unit that can be connected is
FI-8000(TC21064) only.
【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】Do not attach and remove the battery unit in a
hazardous location.
【BUL-8000(F), BUL-8000(F1)】Charging has to be done with the dedicated AC adaptor in
non-hazardous area.
【BUL-8000(F), BUL-8000(F1)】The temperature should be between 0degree C and +40degree C.
【BUD-8000(F)】Do not attach and remove batteries in the dry battery unit in a hazardous location.
【BUD-8000(F)】Use specified AA alkaline batteries (LR6 TOSHIBA) for the dry battery unit.
The specifications of the gas detector are as follows:
Sensor circuit
: Allowable voltage of 4.95 V, allowable current of 1.12 A, and allowable
power of 1138 mW
Pump circuit
: Allowable voltage of 4.95 V, allowable current of 0.834 A, and allowable
power of 853 mW
Buzzer circuit
: Allowable voltage of 4.95 V, allowable current of 0.431 A, and allowable
power of 441 mW
Main circuit
: Allowable voltage of 4.95 V, allowable current of 0.717 A, and allowable
power of 733 mW
Backup circuit
: 3.0 VDC, 10 µA
Ambient temperature
:-20degree C to +50degree C
The specifications of the BUL-8000(F), BUL-8000(F1) are as follows:
Sensor circuit
: Maximum voltage of 4.25 V, maximum current of 1.12 A, and maximum
power of 901 mW
Pump circuit
: Maximum voltage of 4.25 V, maximum current of 0.768 A, and
maximum power of 618 mW
Buzzer circuit
: Maximum voltage of 4.25 V, maximum current of 0.410 A, and
maximum power of 330 mW
Main circuit
: Maximum voltage of 4.25 V, maximum current of 0.653 A, and
maximum power of 526 mW
Battery charging contact : Allowable current of 250 VAC 50/60Hz
Ambient temperature
: -20degree C to +50degree C
The specifications of the BUD-8000(F) are as follows:
Sensor circuit
: Maximum voltage of 4.95 V, maximum current of 1.12 A, and maximum
power of 1138 mW
Pump circuit
: Maximum voltage of 4.95 V, maximum current of 0.834 A, and
maximum power of 853 mW
Buzzer circuit
: Maximum voltage of 4.95 V, maximum current of 0.431 A, and
maximum power of 441 mW
Main circuit
: Maximum voltage of 4.95 V, maximum current of 0.717 A, and
maximum power of 733 mW
Power supply
: 4.5 VDC, 150 mA (LR6 3 pcs)
Ambient temperature
: -20degree C to +50degree C
Make sure that the product model on the nameplate is correct.
Inappropriate combinations of models deviate from the range of explosion-proof certification.
The nameplate shows the followings as well as the product model.
Product model
: Main unit: FI-8000
Lithium ion battery unit: BUL-8000 (F), BUL-8000(F1)
Dry battery unit: BUD-8000 (F)
Explosion proof class
: 【FI-8000】Ex ia IIC T4
【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】 Ex ia IIC T4
Ambient temperature
: -20 to 50ºC
Charging terminal rating : 【BUL-8000(F), BUL-8000(F1)】Allowable voltage AC250V 50/60Hz
Warnings
: 【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】
Inhibit to take off battery unit in non-hazardous area.
Manufacturer
: RIKEN KEIKI Co., Ltd.
IP protection class: IP20
- 10 -
3 Product Components
3-1. Main unit and standard accessories
NOTE
Connect either the lithium ion battery unit BUL-8000(F),
BUL-8000(F1) or dry battery unit BUD-8000(F).
Check the model of the battery unit with the nameplate
affixed to the unit.
A nameplate indicating a compatible model is affixed to the
battery unit to avoid using the gas monitor in combination
with a wrong unit.
Nameplate
Check this information and use a correct combination.
(Top view of battery unit)
(Side view of battery unit)
- 11 -
3 Product Components
3-2. Names and functions for each part
3-2. Names and functions for each part
<Outline Drawing> (Main Unit)
(1)
(2)
LCD display
(3)
(4)
(5)
Alarm LED arrays
Infrared communication port
REF CAL switch
[switch]
REC. switch
[ switch]
DISP switch
[ESC switch]
(6)
(7)
Buzzer sound opening
Displays a measuring gas name, concentration, error, etc.
Emits a buzzer sound at power-on/off or error occurrence.
(Do not block it.)
The lamp blinks in response to error occurrence.
Used to carry out data communications with a PC in data logger mode.
Used to perform reference gas calibration.
[Used to enter numerical values or move a screen.]
Used to save measurement results in the measuring mode.
[Used to enter numerical values or move a screen.]
Displays detailed information such as a range of measuring gas.
[Used to stop processing and to do others.]
- 12 -
3 Product Components
(8)
POWER switch
[ENTER switch]
(9)
(10)
Gas inlet
Gas outlet
(11)
(12)
(13)

Battery cover
Battery cover fixing screw
Battery unit screws
3-2. Names and functions for each part
Turns ON/OFF the power.
[Used to make a selection in the setup and recording measurement
modes.]
Draws in a gas (do not block it). The gas sampling hose is connected.
Discharges a gas drawn into the concentration meter (do not block it).
(A handy aspirator is attached for the handy aspirator specification
type.)
Opened or closed when replacing dry batteries.
Fixes the battery cover.
Loosened to detach and replace the battery unit.
The switches and descriptions in [ ] are for the setup and recording measurement modes.
CAUTION



Do not jab the buzzer sound opening with a sharp-pointed item. The unit may malfunction or
get damaged, allowing water or foreign matter, etc. to get inside.
Do not remove the panel sheet on the surface. The water-proof and dust-proof performances
will be deteriorated.
Do not affix a label or the like on the infrared communication port. Infrared communications can
no longer be conducted.
<LCD Display> (Measuring mode)
(2) Unit
(1) Battery level icon
(3) Measured gas
concentration display
(4) Measured gas name
(1)
Battery level icon
(2)
Unit
Measuring gas
concentration display
Measuring gas name
(3)
(4)
Displays the battery level. See the information below for the meanings
of battery level icons.
Displays a unit of gas concentration.
Displays the gas concentration as numeric output.
Displays the measuring gas name.
NOTE
 The meanings of battery level icons are as follows:
: Sufficient/
: Low/
: Needs replacement (charging)
 If the battery level further drops, the inside of the battery icon starts to blink (
- 13 -
).
4 How to Use
4-1. Before using the concentration meter
4
How to Use
4-1. Before using the concentration meter
Not only the first-time users but also the users who have already used the concentration meter must follow
the operating precautions.
Ignoring the precautions may damage the unit, resulting in inaccurate gas measurement.
4-2. Preparation for start-up
Before starting gas measurement, read and understand the following precautions. Ignoring these
precautions may prevent correct gas measurement.

Check that the battery level is sufficient.

Check that there is no bend or hole in the gas sampling hose.

Check that the filter in the gas sampling probe is free of dust or clogging.

Check that the main unit and gas sampling hose are connected properly.

Check that the main unit and handy aspirator are connected properly (the handy aspirator specification
type only).
DANGER
 【BUL-8000(F), BUL-8000(F1), BUD-8000(F)】Do not attach and remove the battery unit in a
hazardous location.

【BUL-8000(F), BUL-8000(F1)】Charging has to be done with the dedicated AC adaptor in
non-hazardous area.

【BUL-8000(F), BUL-8000(F1)】The temperature should be between 0degree C and +40degree C.

【BUD-8000(F)】Do not attach and remove batteries in the dry battery unit in a hazardous location.

【BUD-8000(F)】Use specified AA alkaline batteries (LR6 TOSHIBA) for the dry battery unit.
<Attaching Batteries> (When the standard accessory BUD-8000(F) is used)
When the concentration meter is used for the first time, or when the battery level is low, attach new AA
alkaline batteries.
CAUTION
<Replacement>

Turn off the power of the concentration meter before replacing the batteries.

Replace the batteries in a non-hazardous area.

Replace all of the three batteries with new ones at one time.

Pay attention to the polarities of the batteries.

If the battery cover fixing screw is not completely tightened, the dry batteries may drop off or
water may get in through the clearance.
Water may also get in if a minute foreign substance is caught beneath the battery unit.
<Batteries>

Use AA alkaline batteries. Rechargeable batteries cannot be used.

If the concentration meter is not used for a long time, store it after removing the batteries.
- 14 -
4 How to Use
4-2. Preparation for start-up
(1) Using a flathead screwdriver or coin,
turn the battery cover fixing screw
counterclockwise to open the battery
cover.
(2) Paying attention to the polarities of
batteries, replace all the three batteries
with new ones.
Battery cover
Battery cover fixing screw
(3) Close the battery cover and tighten the
battery cover fixing screw.
AA alkaline dry
batteries
Battery
polarity
<Charging Batteries> (When the option unit BUL-8000(F), BUL-8000(F1) is used)
In addition to the alkaline battery unit (BUD-8000(F)) of standard accessory, the optional lithium ion battery
unit (BUL-8000(F), BUL-8000(F1)) can be used for the concentration meter.
When the concentration meter is used for the first time, or when the battery level is low, be sure to use the
accessory AC powered charger to charge the batteries.
DANGER







Use the dedicated AC powered charger.
Charge the battery unit in a non-hazardous area.
Charge the battery unit at ambient temperatures between 0 to +40ºC.
Do not use the concentration meter while charging it. Correct measurements cannot be
obtained.
Furthermore, the batteries get deteriorated more quickly and may have shorter life.
The charger is neither water-proof nor dust-proof. Do not charge the batteries while the
concentration meter is wet.
The AC powered charger is not explosion-proof.
- 15 -
4 How to Use
4-2. Preparation for start-up
(1) Open the charging jack cover of the concentration meter.
Charging indicator lamp
CAUTION
Do not pull the charging jack cover too
hard. It may get damaged.
Charging jack
Put the plug of AC powered
charger into the charging jack
Charging jack cover
(rubber cap)
Plug
AC powered charger
(2) Put the plug of the AC powered charger into the charging jack of the concentration meter.
(3) Connect the AC powered charger to the wall electric outlet.
When charging is started, the charging indicator lamp lights up (red).
(Charging time: Three hours at the maximum until the batteries are fully charged)
(4) When charging is completed, the charging indicator lamp goes off.
(5) When charging is completed, disconnect the AC powered charger from the wall electric outlet.
(6) Pull out the AC powered charger plug from the charging jack of the concentration meter and reattach
the charging jack cover (rubber cap). Push the charging jack cover as far as it will go.
CAUTION



Do not use the concentration meter with the charging jack cover detached. Dust or water may
get into the concentration meter, causing it to malfunction.
If the charging jack cover is not completely closed, water may get in from the power jack. The
same thing occurs if a minute foreign substance is caught beneath the knob.
Disconnect the AC powered charger plug from the charging jack while it is not in use.
NOTE
 During charging, the battery unit may get hot, but this is not an abnormality.
 The temperature of the concentration meter is high immediately after charging is completed. Let it stand
for 10 minutes or more before using it. Otherwise, correct measurements may not be obtained.
 When fully charged batteries are recharged, the charging indicator lamp does not go on.
- 16 -
4 How to Use
4-2. Preparation for start-up
<Releasing and Attaching the Battery Unit>
(1) Loosen the two battery unit screws.
(They need not be completely detached.)
(2) Detach the battery unit.
(3) Attach a new battery unit.
Connection
terminal
NOTE
Make sure that the battery unit is installed in correct orientation by
checking the locations of the connection terminal and projection
portions.
(4) Securely tighten the two battery unit screws.
CAUTION





Turn off the power of the concentration meter before
replacing the battery unit.
Detach and reattach the battery unit in a non-hazardous
area.
If the battery unit screw is not completely tightened, the
battery unit may drop off or water may get in through the
clearance.
Also, if a minute foreign substance is caught in the
clearance, water may get in.
Do not damage the rubber seal.
To maintain the water-proof and dust-proof performances, it
is recommended to replace the rubber seal every two years,
whether or not it has an abnormality.
Battery unit screws
Bottom of concentration meter
<Connecting the Gas Sampling Hose>

Connect the sampling hose securely to the gas inlet (GAS IN) of the concentration meter.

To use an absorbing tube, connect tubes to the gas inlet (GAS IN) of the concentration meter in the
following order: relay tube, absorbing tube and then gas sampling hose.

To use the handy aspirator specification type, connect the handy aspirator securely to the gas outlet
(GAS OUT) of the concentration meter.
Insert the handy aspirator all the way into the gas outlet (GAS OUT)
to ensure connection.
Insert the sampling hose or relay tube to the gas inlet (GAS IN)
until it clicks into place to ensure connection.
CAUTION
Use only the tubes specified by RIKEN KEIKI.
- 17 -
4 How to Use
4-3. Basic operating procedures (measuring mode)
4-3. Basic operating procedures (measuring mode)
<Measuring Mode>
(long pressing)
<Caution Display>
<Manual Memory>
<Measuring Gas/Range Detail Display>
<Error Display>
(long pressing)
<Reference Gas Calibration>
NOTE
The concentration meter provides various operating modes: "Measuring mode" for measuring a specified
gas continuously, "Setup mode" for changing a measuring gas, setting time, etc. and "Recording
measurement mode (pump specification type only)" for measuring and recording at specified time intervals.
The power-on method differs in each mode. See "4-7. Modes" for details.
- 18 -
4 How to Use
4-4. How to start the concentration meter
4-4. How to start the concentration meter
<Start-up Procedures> (Measuring mode)
Keep the POWER switch pressed for three seconds or more.
All LCDs light up.
Alarm lamp lights up.
Buzzer sounds once. (Beep)
Self-diagnosis (battery level)
Example: March 10, 2014 23:47
OK (no problem)
Self-diagnosis (UV intensity)
Example: OK (no problem)
Self-diagnosis (contrast)
Example: OK (no problem)
Measuring mode
Buzzer sounds twice. (Beep, beep)
CAUTION
After start-up, make the concentration meter draw the reference gas specified in the measuring gas
specifications sufficiently from the gas inlet (GAS IN) before performing gas measurement. If the
concentration meter does not read the reference calibration value specified in the measuring gas
specifications, perform reference gas calibration (see "4-8. Reference gas calibration").
- 19 -
4 How to Use
4-4. How to start the concentration meter
<Self-diagnosis Function at Start-up>
The concentration meter provides various operating modes: "Measuring mode" for measuring a specified
gas continuously, "Setup mode" for changing a measuring gas, setting time, etc. and "Recording
measurement mode (pump suction type only)" for measuring and recording at specified time intervals. The
power-on method differs in each mode. See "4-7. Modes" for details.
The self-diagnosis function works automatically regardless of the way to turn on the power, and the
self-diagnosis screen is displayed (see P.17 Start-up Procedures). If a problem is found in the battery level,
UV intensity or contrast as a result of self-diagnosis, the concentration meter displays "LOW" in the lower
part of the screen and sounds the buzzer.
Display example: Low contrast
If the problem found is a minor one, the concentration meter enters the measuring mode. However, the
screen provides the normal and caution displays alternately.
Alternate display
Display example: Caution display for low contrast
If the problem found is a major one that prevents measurement, the concentration meter does not enter any
mode and displays an error.
Display example: Contrast error
CAUTION
If a caution or error is displayed, promptly take an appropriate remedial measure to restore the
normal condition. See "8. Troubleshooting" for caution and error details and remedial actions.
- 20 -
4 How to Use
4-5. Measurement method (measuring mode)
4-5. Measurement method (measuring mode)
The concentration meter provides the following display in the measuring mode.
Display example
<- Display example
Sevoflurane concentration: 7. 43 vol%
Base gas: Air
Battery level: Sufficient
<Automatic Draw-in by Built-in Pump>
In the measuring mode, put the gas sampling hose close to the measurement location and take the reading.
<Manual Draw-in by Handy Aspirator>
In the measuring mode, put the gas sampling hose close to the measurement location and squeeze the
handy aspirator two or three times to draw a gas. The reading fluctuates widely due to change in pressure
while a gas is drawn. After drawing a gas, take the reading when it is stabilized.
DANGER


Oxygen-deficient air or other gases may blow out from the gas exhausting outlet. Never inhale
the air or gases.
To measure a harmful or explosive gas, take a measure to prevent diffusion of the exhausted
gas such as attaching a gas sampling bag to the gas outlet (GAS OUT).
WARNING







The concentration meter is designed to draw gases around it under the atmospheric pressure.
If excessive pressure is applied to the gas inlet and outlet (GAS IN, GAS OUT) of the
concentration meter, measuring gases may leak out from its inside and may cause dangerous
conditions. Be sure that excessive pressure is not applied to the inlets while the concentration
meter is used.
Do not connect the gas sampling hose directly to a location with a pressure higher than the
atmospheric pressure. The internal piping system may be damaged.
Do not draw a gas with a pressure higher than the atmospheric pressure. Accurate readings
cannot be obtained.
Before use, check that there remains sufficient battery power. When the concentration meter is
used for the first time or is not used for a long period, the batteries may be exhausted. Either
fully charge the batteries or replace them with new ones before use.
If a battery error occurs, measurement cannot be performed. If the error message is displayed
during use, turn off the power and promptly replace or charge the batteries in a non-hazardous
area.
Do not draw a high-concentration gas beyond the measuring range. Accurate readings cannot
be obtained.
Do not block the buzzer sound opening. No buzzer sound can be heard when an error is
displayed.
- 21 -
4 How to Use
4-5. Measurement method (measuring mode)
CAUTION



If the measured gas contains an interference gas (other than measuring and base gases),
accurate readings cannot be obtained. Do not measure gases that contain interference gases.
Keep the gas inlet and outlet at the atmospheric pressure.
The concentration meter does not read normally unless a measuring and base gases are
selected correctly. Check that the measuring and base gas names displayed on the screen
agree with ones to be measured before use.
NOTE
 In a low-temperature environment, the operating time is shortened due to the battery performance
property.
 At a low temperature, the response of the LCD display may get slow down.
 If a high-concentration gas is drawn, some gas may remain in the gas sampling hose due to adsorption
in the hose, etc. After drawing a high-concentration gas, clean the concentration meter to remove the
adsorbed gas (draw a reference gas and check that the reading becomes the reference calibration
value).
Note that if reference gas calibration is performed while the cleaning is incomplete, the concentration
meter will not be adjusted properly and thus correct measurement cannot be performed. In such a case,
remove the gas sampling hose before performing reference gas calibration to avoid inaccurate
adjustment.
<Points of attention in fumigation gases measurement>
FI-8000 might indicate different reading from true measuring concentration due to influence of carbon
dioxide concentration variation. In order to reduce the influence of carbon dioxide concentration variation as
much as possible, please operate the FI-8000 with below instructions.
In order to reduce the influence of carbon dioxide concentration variation as much as possible, carbon
dioxide needs to be removed by pretreating prior to start measurement. Carbon dioxide removal filter (soda
*1
*2
lime filter) and Moisture removal filter (calcium chloride filter) are used for this pretreatment.
*1) Carbon dioxide removal filter (soda lime filter)
It removes carbon dioxide. Moisture will be generated in a chemical reaction of carbon dioxide and soda
lime.
*2) Moisture removal filter (calcium chloride filter)
It removes moisture that is generated by carbon dioxide removal filter.
At the beginning, Reference gas calibration should be done using carbon dioxide removal filter and moisture
removal filter at the fumigation area that there is no fumigation gas (see “4-6. Reference gas calibration”).
Once gas is introduced, start measurement that also should be done using both filters as soon as possible.
Since carbon dioxide is being generated from objects, if a time interval causes, you might not have accurate
reading due to carbon dioxide concentration variation.
Moisture removal
filter
Carbon dioxide
removal filter
FI-8000
- 22 -
Fumigation area gas
(Environment before/after
introducing fumigation gas)
4 How to Use
4-5. Measurement method (measuring mode)
CAUTION


Filters are consumables. Please replace both filters periodically.
Incorrect filter connection sequence can cause failure. The FI-8000 will suck the moisture
which is generated from carbon dioxide removal filter.
<Correct use>
Carbon dioxide
removal filter
Fumigation area gas
(Environment before/after
introducing fumigation gas)
Moisture removal
filter
Fumigation area gas
(Environment before/after
introducing fumigation gas)
Moisture removal
filter
FI-8000
<Incorrect use>
Carbon dioxide
removal filter
FI-8000
- 23 -
4 How to Use
4-6. Manual Memory
4-6. Manual Memory
Any instantaneous value during measurement can be recorded. Up to 256 points of data can be recorded.
(1) In the measuring mode, press the REC. switch (for about two seconds).
(2) The buzzer blips and the time and instantaneous value at that time are recorded. The following screens
are displayed on the concentration meter.
The concentration meter returns to the normal display of the measuring mode automatically.
NOTE
If the maximum data amount (256 points) is exceeded, the concentration
meter displays "RECORD FULL" and rejects saving of further data. To save
data newly, delete the saved data in the display/setting mode
(see "4-8. Setup mode" for details).
- 24 -
4 How to Use
4-7. Measuring Gas/Range Detail Display
4-7. Measuring Gas/Range Detail Display
The detailed information of measuring gas/range can be checked.
(1) Press the DISP switch. The concentration meter displays the following screens in turn (the display
content varies by the combination of measuring and base gases).
(2) After displaying ten cycles, the normal display returns.
- 25 -
4 How to Use
4-8. Reference gas calibration
4-8. Reference gas calibration
Draw a specified reference gas
from GAS IN. When the reading
is stabilized, press the REF. CAL
switch (for more than two
seconds).
When the buzzer blips, release
the REF. CAL switch
Reference gas calibration is
now finished.
CAUTION




Perform reference gas calibration under pressure and temperature/humidity conditions close to
those in the operating environment.
Perform reference gas calibration after the reading is stabilized.
If there is a sudden temperature change of 15ºC or more between the storage and operation
locations, turn on the power of the concentration meter, leave it for about ten minutes in a
similar environment to the operation location, and perform reference gas calibration before
using it.
After calibration, check that the concentration meter reads the reference calibration value
(REF. CAL value) which is determined by the combination of measuring and base gases. See
the measuring gas specifications for REF. CAL values.
NOTE
When an occurrence of zero drift is highly likely, the caution display "CHECK
REF. CAL" is displayed. In this case, draw a specified reference gas and
perform reference gas calibration (see the measuring gas specifications for
reference gas).
- 26 -
4 How to Use
4-9. Setup mode
4-9. Setup mode
This mode allows changing various displays and settings.
This mode can be entered by pressing the POWER switch while holding down the /REF CAL switch.
Every time the  switch is pressed, various menu screens are displayed in turn.
Power ON
Press the POWER switch while
holding down the /REF CAL
switch.
Start-up procedures
=>P19
Setup mode
Measuring gas setting
A measuring gas can be selected.
Measuring gas setting
=> P28
Date/time setting
Set the date and time of the
internal clock.
Date/time setting
=> P29
Saved data display
Display the data recorded in
the manual memory or
recording measurement mode.
Saved data display
=> P30
Saved data clear
Clear saved data.
Saved data clear
=> P31
IrDA communication
Establish an infrared
communication with a personal
computer to perform various
settings or data management.
(The communication program is
available as an optional
accessory.)
- 27 -
4 How to Use
4-9. Setup mode
Switch to measuring mode
Exit the setup mode and enter
the measuring mode.
Switch to measuring mode
⇒P32
<Measuring Gas Setting "1. SELECT GAS">
A measuring gas can be selected.
(1) Press the / switch and select "1. SELECT GAS" from the setup menu.
(2) When the ENTER switch is pressed, the currently set measuring gas, base gas, measuring range and
other information are displayed as shown below (the displayed information varies by the selected
measuring gas or range).
NOTE
When there is no need of changing the setting, press the ESC switch to return to the setup mode menu.
(3) When the ENTER switch is pressed again, the SPE number (a number allocated to a combination of
measuring and base gases, measuring range, etc.) in the upper right section of the screen blinks.
Every time the  or  switch is pressed, the displayed SPE number changes.
(4) Press the ENTER switch to confirm it. After a value is confirmed, the concentration meter returns to the
setup mode menu automatically.
NOTE
Contact RIKEN KEIKI for a change or addition of selectable gases.
- 28 -
4 How to Use
4-9. Setup mode
<Date/Time Setting "2. SET DATE/TIME">
The date and time of the internal clock can be set.
(1) Press the / switch and select "2. SET DATE/TIME" from the setup mode menu.
(2) When the ENTER switch is pressed, the set time is displayed. (Input example: January 20, 2014 23:47)
NOTE
When there is no need of changing the setting, press the ESC switch to return to the setup mode menu.
(3) When the ENTER switch is pressed again, the input area blinks. Enter the year, month, day, hour, and
minute in this order. Press the / switch to change the values and press the ENTER switch to
confirm each value (24-hour notation is used).
(4) When the ENTER switch is pressed to confirm a change of time (minute), the concentration meter
returns to the setup mode menu automatically.
- 29 -
4 How to Use
4-9. Setup mode
<Saved Data Display "3. VIEW SAVED DATA">
The data recorded in the manual memory or recording measurement mode is displayed.
(1) Press the / switch and select "3. VIEW SAVED DATA" from the setup mode menu.
(2) Press the ENTER switch to display the saved data.
NOTE
When there is no need of viewing the detailed information of saved data, press the ESC switch to return to
the setup mode menu.
(3) Press the / switch to display the data numbers in turn. When the ENTER switch is pressed to make
a selection, the saved data number/time, measuring gas, range and other information are displayed in
turn in the lower part of the screen (the displayed information varies by the selected measuring gas or
range).
(4) When the ESC switch is pressed, the concentration meter returns to the setup mode menu.
- 30 -
4 How to Use
4-9. Setup mode
<Saved Data Clear "4. CLEAR SAVED DATA">
The data recorded in the manual memory or recording measurement mode can be deleted.
(1) Press the / switch and select "4. CLEAR SAVED DATA" from the setup mode menu.
(2) When the ENTER switch is pressed, a confirmation screen asking for permission to delete the saved
data appears.
NOTE
 When there is no need of deleting saved data, press the ESC switch to return to the setup mode menu.
 When saved data clear is executed, all the data recorded up to that time will be deleted.
(3) Press the ENTER switch. When deletion is completed, DATA CLEAR is displayed in the upper right
section of the screen.
(4) When the ENTER or ESC switch is pressed, the concentration meter returns to the setup mode menu.
- 31 -
4 How to Use
4-9. Setup mode
<Switch to Measuring Mode "6. START MEAS.">
The measuring mode can be entered from the setup mode.
(1) Press the / switch and select "6. START MEAS." from the setup menu.
(2) When the ENTER switch is pressed, a confirmation screen asking for permission to enter the
measuring mode appears.
NOTE
When there is no need of entering the measuring mode, press the ESC switch to return to the setup mode
menu.
(3) When the ENTER switch is pressed, the concentration meter enters the measuring mode.
- 32 -
4 How to Use
4-10. Recording measurement mode
(pump suction type only)
4-10. Recording measurement mode
(pump suction type only)
NOTE
The recording measurement mode is unavailable for the handy aspirator manual draw-in type.
The concentration meter enables automatic measurement and data recording at specified time intervals.
While measurement is not performed, the concentration meter is put into the power-saving state. The
recording measurement can be performed for a few hours up to four days.
See the following for the recording measurement flow.
Power ON
Start
Recording measurement interval
Recording measurement interval
Condition input
Pump suction time
Power-saving standby state
Recorded
Pump suction time
Repeated
Power-saving standby state
Recorded
Recorded
The recording measurement mode allows setting measuring and base gases, recording measurement
interval and pump suction time, checking the memory free space and starting recording measurement.
This mode can be entered by pressing the POWER switch while holding down the /REC. switch.
Every time the  switch is pressed, various menu screens are displayed in turn.
Power ON
Press the POWER switch
while holding down the
/REC. switch.
Start-up procedures
=>P19
Recording measurement mode
Measuring gas setting
Set a measuring gas.
Measuring gas setting
=> P35
Recording measurement interval
setting
Set a time interval for recording
measurement.
Recording measurement interval
setting
=> P36
- 33 -
4 How to Use
4-10. Recording measurement mode
Pump suction time setting
Set a pump suction time during
recording measurement.
(pump suction type only)
Pump suction time setting
⇒P37
Memory free space display
Display a memory free space.
Recording measurement start
Start recording measurement.
Recording measurement start
=> P38
- 34 -
4 How to Use
4-10. Recording measurement mode
(pump suction type only)
<Measuring Gas Setting>
A measuring gas can be selected.
(1) Press the / switch and select measuring gas setting from the recording measurement mode menu.
The measuring and base gases, range and other information are displayed in turn on the concentration
meter (the displayed information varies by the selected measuring gas or range).
(2) Press the ENTER switch.
NOTE
When there is no need of changing the setting, press the ESC switch to return to the recording
measurement mode menu.
(3) The SPE number (a number allocated to a combination of measuring and base gases, measuring
range, etc.) in the upper right section of the screen blinks. It changes to another every time the /
switch is pressed.
(4) Select a desired SPE number and press the ENTER switch to confirm it.
The setting is completed when the SPE number stops blinking. When the selection is confirmed by
pressing the ENTER switch, the concentration meter returns to the recording measurement mode
menu.
- 35 -
4 How to Use
4-10. Recording measurement mode
(pump suction type only)
<Recording Measurement Interval Setting "REC. INTERVAL">
A recording measurement interval can be selected from 5 sec, 10 sec, 30 sec, 60 sec, 5 min, 10 min, 30 min
and 60 min.
(1) Press the / switch and select recording measurement interval setting from the recording
measurement mode menu.
(2) When the ENTER switch is pressed, the recording measurement interval (numerical value and unit)
blinks.
NOTE
When there is no need of changing the setting, press the ESC switch to return to the recording
measurement mode menu.
(3) Press the / switch to select a time interval of recording measurement and press the ENTER switch
to confirm it.
(Input example: 10 minutes)
(4) The setting is completed when the numerical value and unit stop blinking.
When the ENTER switch is pressed to confirm the measurement interval, the concentration meter
returns to the recording measurement mode menu.
- 36 -
4 How to Use
4-10. Recording measurement mode
(pump suction type only)
<Pump Suction Time Setting "PUMPING TIME">
A pump suction time can be selected from 10 sec, 30 sec, 60 sec, 300 sec and CONTINUOUS.
(1) Press the / switch and select pump suction time setting from the recording measurement mode
menu.
(2) When the ENTER switch is pressed, the pump suction time (numerical value and unit) blinks.
NOTE
When there is no need of setting the pump suction time, press the ESC switch to return to the recording
measurement mode menu.
(3) Press the / switch to select a pump suction time and press the ENTER switch to confirm it.
(Input example: 60 seconds)
(4) The setting is completed when the numerical value and unit stop blinking.
When the ENTER switch is pressed to confirm the pump suction time, the concentration meter returns
to the recording measurement mode menu.
- 37 -
4 How to Use
4-10. Recording measurement mode
(pump suction type only)
<Recording Measurement Start "RECORDING MEAS.">
Recording measurement can be started.
(1) Press the / switch and select recording measurement start from the recording measurement mode
menu.
(2) When the ENTER switch is pressed, recording measurement is started.
The following screens are displayed in turn on the concentration meter during recording measurement.
<Display until 1 Minute before Next Measurement>
The last recorded measurement result and the time to perform the next measurement (in minutes) are
displayed alternately.
<Display from 60 to 2 Seconds before Next Measurement>
The last recorded measurement result and the time to perform the next measurement (in seconds) are
displayed alternately.
<Display from 2 to 0 Seconds before Next Measurement>
The last recorded measurement result blinks. The display content will be updated when a new
measurement result is saved.
NOTE
If the maximum data amount (256 points) is exceeded, the concentration
meter displays "RECORD FULL" and rejects saving of further data. To
save data newly, delete the saved data in the display/setting mode (see
"4-8. Setup mode" for details).
- 38 -
4 How to Use
4-11. How to exit
4-11. How to exit
After measurement, make the concentration meter draw fresh air from GAS IN and discharge the measuring
gas remaining inside.
To turn off the power, hold down the POWER switch. The buzzer sounds three times. Hold down the
POWER switch until the screen display disappears to turn off the power.
- 39 -
5 Operations and Functions
5-1. CAUTION display
5
Operations and Functions
5-1. CAUTION display
The concentration meter is equipped with a self-diagnosis function. When the caution display appears on
the concentration meter, it means that a minor abnormality is found by the self-diagnosis function.
Caution display:
Display operation:
Caution type:
Appears when a minor abnormality is found in the concentration meter operation by
automatic check function.
Displays the caution detail on the screen to notify users of it.
Low battery voltage, low contrast, low UV intensity, calibration failure,
out-of-specification temperature, out-of-specification pressure
Determine the causes and take appropriate actions.
If the unit has problems and the caution display appears frequently, contact RIKEN KEIKI immediately.
<Display Operation>
LCD display
Provides the normal and caution displays alternately.
Alternate display
Normal display
Caution display for low contrast
Display example
NOTE
 The concentration meter continues measurement with the caution display. However, if the caution
display appears, promptly take an appropriate remedial measure to restore the normal condition.
 See "8. Troubleshooting" for caution details and appropriate actions.
- 40 -
5 Operations and Functions
5-2. ERROR display
5-2. ERROR display
The concentration meter is equipped with a self-diagnosis function. When the error display appears on the
concentration meter, it means that a major abnormality that prevents measurement is found by the
self-diagnosis function.
Error display:
Appears when a major abnormality is found in the concentration meter operation by
automatic check function.
Display operation: Displays the error detail on the screen to notify users of it.
Error type:
Battery error, contrast error, UV intensity error, setting information error, system error,
built-in clock error, optical sensor unit error
Determine the causes and take appropriate actions.
If the unit has problems and the error display appears frequently, contact RIKEN KEIKI immediately.
<Display Operation>
LCD display
Provides the error detail.
Lamp
Blinks
Buzzer
Sounds (be-beep, be-beep...)
Contrast error
Display example
NOTE
 When the error display appears, any mode cannot be entered unless the error is eliminated. When the
error display appears, promptly take an appropriate remedial measure.
 See "8. Troubleshooting" for error details and appropriate remedial measure.
- 41 -
6 Maintenance
6-1. Maintenance intervals and items
6
Maintenance
To maintain the performance of the concentration meter and improve the reliability, perform regular
maintenance and check.
6-1. Maintenance intervals and items


Daily maintenance: Perform maintenance before beginning to work.
Regular maintenance: Perform maintenance once or more every year to maintain the performance.
Maintenance item
Maintenance content
Battery level check
Check that the battery level is sufficient.
Concentration display
check
Draw a specified reference gas and check that the
displayed concentration value indicates the
reference calibration value. If the reading is
incorrect, perform reference gas calibration using a
reference gas.
See the pilot indicator to check for abnormalities.
Checking the
operation of the main
unit
Checking the
operation of the pump
(pump suction type
only)
Span adjustment
See the pump operation status indicator to check
for abnormalities.
Check the sensitivity using a calibration gas and
perform span adjustment as needed.
Daily
maintenance
Regular
maintenance
○
○
○
○
○
○
○
○
○
* It is recommended that the sensitivity of the instrument be confirmed periodically (at least once a year) to
assume the correct operation. If any problem is found, or If you would like to have it calibrated, please
contact any of our agents.
- 42 -
6 Maintenance
6-2. Calibration
6-2. Calibration
Perform span adjustment of sensors using a calibration gas at least once a year.
Request RIKEN KEIKI to perform span adjustment.
6-3. How to clean
Clean the concentration meter if it becomes extremely dirty. The concentration meter must be turned off
while cleaning it. Use a waste cloth to remove dust. Do not use water or organic solvent for cleaning
because they may cause malfunctions.
CAUTION
When cleaning the concentration meter, do not splash water over it or use organic solvents such as
alcohol and benzene on it. The surface of the concentration meter may be discolored or damaged.
NOTE
When the concentration meter gets wet, water may remain in the buzzer sound opening or clearances.
Drain water as follows:
(1) Wipe away moisture on the concentration meter thoroughly using a dry towel, cloth, etc.
(2) While holding the concentration meter firmly, shake it about ten times with the buzzer sound opening
facing downward.
(3) Wipe away moisture coming out from the inside thoroughly using a towel, cloth, etc.
(4) Place the concentration meter on a dry towel, cloth, etc. and let it stand at normal temperatures.
- 43 -
6 Maintenance
6-4. Parts replacement
6-4. Parts replacement
<Replacement of Regular Replacement Parts>
List of recommended regular replacement parts
No.
Item
Part number
Recommended
maintenance
interval
Recommended
replacement
interval
Quantity
(pieces
per unit)
1
Pump unit
(RP-12)
4181 0610 30
6 months
2 years (*)
1
2
Alkaline dry battery
(AA)
2753 3007 80
-
-
3
3
Lithium ion
battery pack
(for BUL-8000(F),
BUL-8000(F1))
-
-
About 500 cycles
of charging and
discharging
1
4
Rubber cap
4775 5614 50
-
2 years
1
5
Handy aspirator
0904 0012 60
-
5 years
1
Remarks
* Assuming 500
hours of use per
year
When
BUL-8000(F),
BUL-8000(F1)
(option) is used
When
BUL-8000(F),
BUL-8000(F1)
(option) is used
When the handy
aspirator
specification type
is used
NOTE
The above replacement intervals are recommendation only. The intervals may change depending on the
operating conditions. These intervals do not mean the warranty periods either.
The result of the regular maintenance may determine when to replace the parts.
The operation of most of the periodical replacement parts must be checked after replacement by a qualified
service engineer.
For the stable operation of the unit and safety, ask a qualified service engineer to take care of replacement
of the parts that require operation check. Please contact RIKEN KEIKI.
- 44 -
7 Storage and Disposal
7-1. Procedures to store the concentration meter or leave it for a long time
7
Storage and Disposal
7-1. Procedures to store the concentration meter or
leave it for a long time
The concentration meter must be stored under the following environmental conditions.

In a dark place under the normal temperature and humidity away from direct sunlight

In a place where gases, solvents or vapors are not present
Store the concentration meter in a shipping carton, if any, in which the product was delivered.
Store the concentration meter away from dust, etc. if the shipping carton is not available.
CAUTION
If the concentration meter is not used for a long time, turn on the power at least once every six
months and check that the pump draws in air (about three minutes). The concentration meter, when
not activated for a long time, may cease to work because of hardening of the grease in the pump
motor.
NOTE
 If the concentration meter with a lithium ion battery unit is not used for a long time, it is recommended to
store it after discharging the batteries until the battery level icon shows one battery mark or so. If the
concentration meter is stored with the batteries fully charged, the batteries get deteriorated more
quickly and may have shorter life.
 If the concentration meter with a dry battery unit is not used for a long time, store it after removing the
batteries. Battery leaks may result in fire or injury. If the concentration meter is not used for a short time,
store it without removing the batteries.
7-2. Procedures to use the concentration meter again
CAUTION
When using a stopped or stored concentration meter again, never fail to perform a calibration. For
information on readjustment including calibration, please contact RIKEN KEIKI.
- 45 -
7 Storage and Disposal
7-3. Disposal of products
7-3. Disposal of products
When the concentration meter is disposed of, it must be treated properly as an industrial waste in
accordance with the local regulations.
WARNING


Dispose of the batteries in accordance with procedure specified by the local authority.
When disposing of the concentration meter in EU member states, sort the batteries as specified.
Handle the removed batteries according to the classified refuse collection system and recycling system
based on the regulations of EU member states.
Removing batteries
See Section 4-2 "Preparation for start-up" and take out the batteries.
When BUL-8000(F), BUL-8000(F1) (option) is used
Model
BUL-8000(F)
BUL-8000(F1)
Type
Lithium ion battery
NOTE


BUL-8000(F), BUL-8000(F1) (option) contains batteries.
Crossed-out recycle dustbin mark
This symbol mark is indicated on the products which contain the batteries which fall under EU Battery
Directive 2006/66/EC. Such batteries need to be disposed of as specified by the latest Directive.
This symbol mark indicates that the batteries need to be separated from the ordinary waste and disposed of
appropriately.
- 46 -
8 Troubleshooting
8
Troubleshooting
The troubleshooting does not explain the causes of all the malfunctions which occur on the concentration
meter. This simply helps to find the causes of malfunctions which frequently occur. If the concentration
meter shows a symptom which is not explained in this manual, or still has malfunctions even though
remedial actions are taken, please contact our sales department.
<Troubles on the Unit>
Symptoms
Causes
The power cannot be
turned on.
Abnormal operations
Key operations are
disabled.
Low battery voltage
caution is displayed.
(CAUTION)
LOW BATTEERY
Actions
Alkaline battery unit:
Turn off the power and replace all the three dry
batteries with new ones in a non-hazardous area.
The battery level is too low.
Lithium ion battery unit:
Turn off the power and charge the batteries in a
non-hazardous area.
The POWER switch was not For power-on, keep the POWER switch pressed until
pressed long enough.
a beep is heard.
Improper installation of the Check whether the battery unit is properly attached to
battery unit
the main unit.
Disturbances by sudden
Turn off and restart the concentration meter.
static electricity noise, etc.
Turn off the power, and remove the battery unit and
Disturbances by sudden
install it again in a non-hazardous area and then turn
static electricity noise, etc.
on the power to perform operations.
Alkaline battery unit:
Turn off the power and replace the dry batteries with
new ones in a non-hazardous area.
The battery level is low.
Lithium ion battery unit:
Turn off the power and charge the batteries in a
non-hazardous area.
Low contrast caution is
displayed.
(CAUTION)
LOW CONTRAST
The contrast of
interferometric sensor has
been decreased due to
contamination.
Low UV intensity
caution is displayed.
(CAUTION)
LOW BRIGHTNESS
The UV intensity of
interferometric sensor has
been dropped.
Condensation occurred
inside the product (light
source sensor).
Replacement or repair of the interferometric sensor is
recommended. Request RIKEN KEIKI for the
replacement or repair.
Replacement or repair of the interferometric sensor is
recommended. Request RIKEN KEIKI for the
replacement or repair.
Draw dry air to dry the sensor.
- 47 -
8 Troubleshooting
Zero drift may have
occurred.
Perform reference gas calibration using a specified
reference gas (see the measuring gas specifications
for the specified reference gas).
Condensation occurred
inside the product (light
source sensor).
Draw dry air to dry the sensor.
Out-of-specification
temperature caution is
displayed.
(CAUTION)
OUT of SPEC. TEMP
The built-in temperature
sensor detected a
temperature exceeding the
specified range.
Use the concentration meter within the specified
temperature range.
Out-of-specification
pressure caution is
displayed.
(CAUTION)
OUT of SPEC. PRES
The built-in pressure sensor
Use the concentration meter under the atmospheric
detected an abnormal
pressure.
pressure.
Built-in clock error
is displayed.
(ERROR)
CLOCK
An abnormal time setting for Make a setting of date/time.
the internal clock was
If the symptom like this recurs frequently, contact
detected.
RIKEN KEIKI.
Reference calibration
caution is displayed.
(CAUTION)
CHECK REF. CAL
Battery error is
displayed.
(ERROR)
LOW BATTERY
Contrast error is
displayed.
(ERROR)
LOW BRIGHTNESS
The battery level is too low
to perform measurement.
The contrast of
interferometric sensor has
been decreased so much
due to contamination that
measurement cannot be
performed.
Alkaline battery unit:
Turn off the power and replace the dry batteries with
new ones in a non-hazardous area.
Lithium ion battery unit:
Turn off the power and charge the batteries in a
non-hazardous area.
Request RIKEN KEIKI for the replacement or repair
of interferometric sensor.
UV intensity error
is displayed.
(ERROR)
LOW BRIGHTNESS
An abnormality occurred in
the system.
Optical sensor unit
error
(ERROR)
OPTOCAL UNIT
Turn off and restart the concentration meter. If the
An abnormality occurred in
symptom like this recurs frequently, the
communication signals
interferometric sensor needs to be repaired. Request
from the optical sensor unit.
RIKEN KEIKI for the repair.
Setting information
error is displayed.
(ERROR)
SETTING
The data set in the setup
mode is damaged.
Check the setting in the setup mode. If the setting
disagrees with the displayed content, set the data
again.
System error is
displayed.
(ERROR)
SYSTEM
An abnormality occurred in
the system.
Request the dealer or Riken Keiki local representative
for repair.
The charger is not
connected properly.
The batteries cannot
be charged.
A charging circuit
(Rechargeable battery abnormality occurred.
unit only)
The batteries have been
fully charged.
Request RIKEN KEIKI for the replacement or repair
of interferometric sensor.
Connect the AC plug and DC plug of the AC powered
charger properly.
Request the dealer or Riken Keiki local representative
for repair.
When fully charged batteries are charged again, the
charging indicator lamp does not go on.
- 48 -
8 Troubleshooting
<Troubles in Reading>
Symptoms
Causes
Actions
Drifting of sensor output Perform reference gas calibration.
Measuring and base
gases were not selected Select measuring and base gases correctly.
correctly.
If an interference gas (other than measuring and base
Presence of interference gases) is included, correct measurement cannot be
gas
performed by the concentration meter. Remove the
interference gas and perform measurement again.
Incorrect reading
The concentration meter can perform correct measurement
GAS IN/GAS OUT is not under the atmospheric pressure only. Keep GAS IN/GAS
at atmospheric pressure. OUT at the atmospheric pressure and then perform
measurement again.
Bended or clogged
suction tube or exhaust Fix the defective parts.
tube
Condensation is formed
Fix the defective parts.
inside the suction tube.
- 49 -
9 Product Specifications
9
Product Specifications
9-1. List of specifications
Model
Measuring
principle
Measuring gases
Reading accuracy
Sampling method
Self-diagnosis
function
Display
Displays
External output
Functions
Power supply
Continuous
operating time
Use temperature/
humidity range
Protection class
Explosion-proof
structure
Explosion-proof
class
External
dimensions
Weight
FI-8000
Optical interferometric type
See *1 below
Depending on the measuring gas. See *2 below
Automatic draw-in by built-in pump
Manual draw-in by handy aspirator
Low battery voltage, low UV intensity, low contrast, abnormal pressure, abnormal
temperature
LCD digital display
(7-segment numeric display + symbol + 20-segment character display x 2 lines)
Gas concentration, gas name, measuring rage, battery level
IrDA (for data logger)
Data logger, pressure correction, temperature correction
Alkaline battery unit (AA alkaline dry battery x 3)【BUD-8000(F)】 (standard)
or lithium ion battery unit 【BUL-8000(F), BUL-8000(F1)】(option)
BUD-8000(F)
BUD-8000(F)
: 12 hours or more
: 16 hours or more
(25ºC, no alarm, and no lighting)
(25ºC, no alarm, and no lighting)
BUL-8000(F), BUL-8000(F1)
BUL-8000(F), BUL-8000(F1)
: 18 hours or more
: 24 hours or more
(25ºC, no alarm, no lighting, and battery
(25ºC, no alarm, no lighting, and battery
fully charged)
fully charged)
Temperature range: -20 - +50ºC (at a constant condition),
humidity range: Below 95% RH (Non-condensing)
Compliant with IP67
Intrinsically safe explosion-proof structure
Ex ia IIC T4 Ga (ATEX/IECEx<Presafe>), Ex ia llC T4(TIIS)
Approx. 154 (W) x 127 (H) x 81 (D) (mm)
Approx. 1.1 kg (BUD-8000(F) included)
Approx. 1.2 kg (BUL-8000(F) or BUL-8000(F1) included)
* Specifications subject to changes without notice.
*1 See the measuring gas specifications for measuring gases, range, reading accuracy, etc.
See "Measuring Gas Specifications by Type" at the end of this manual for the standard lineup types.
See the separate specification sheet for measuring the gases not included in "Measuring Gas
Specifications by Type".
- 50 -
9 Product Specifications
*2 Reading accuracy is calculated with the formula below.
(The calculated value is the reading accuracy right after the reference gas calibration.
Reading Accuracy=±(Reading - REF CAL Value)X 0.03
(Example)
Measuring gas
: Halothane
Base gas : Oxygen
Measuring range
: 0.00-6.00vol%
REF CAL value : 1.57vol% (See Page 52 “Measuring gas specifications by TYPE”)
If the Reading is 4.23vol% with the gas specification mentioned above
Reading accuracy : ±(Reading - REF CAL value) X 0.03
=±(4.23 - 1.57) X 0.03
=± 0.0798
- 51 -
9 Product Specifications
9-2. List of accessories
Standard
accessories
Optional
accessories







Alkaline battery unit (BUD-8000(F))
Alkaline dry battery: 3
Gas sampling hose: 1
Shoulder strap: 1
Handy aspirator: 1 (manual draw-in type only)
Absorbing tube (contains calcium chloride) and absorbing tube fixing belt
(anesthetic gas specification only)
 Operating manual
 Measuring gas specifications
(attached when measuring gases are not included in "Measuring Gas Specifications
by Type" at the end of this manual)
 Product warranty
 Lithium ion battery unit (BUL-8000(F), FI-8000(F1))
 AC powered charger
See "Measuring Gas Specifications by Type" at the end of this manual for the FI-8000 specification.
- 52 -
10 Definition of Terms
10
Definition of Terms
vol%
LEL
g/m
3
Measuring gas
Base gas
Reference gas
Reference gas
calibration value
Gas concentration indicated in the unit of one-hundredth of the volume
An acronym for Lower Explosive Limit.
LEL refers to the lowest concentration of a combustible gas in air capable of causing
explosion when ignited.
A unit used to represent the mass of concentration measurement target gas
3
contained in 1 m .
Of the draw-in gases, the ones targeted for concentration measurement.
Of the draw-in gases, the ones other than measuring gases.
A gas used as a reference of refractive index in performing measurement (see the
measuring gas specifications).
A value that should be read in measuring a reference gas
(see the measuring gas specifications).
- 53 -
11 Detection Principle
11
Detection Principle
The refractive index of gases is determined by the types of composing gases and the mix ratio. When a
mixed gas consists of two different gases and the types are known, the mix ratio (concentration) can be
obtained by measuring the refractive index.
The optical interferometric sensor used for the concentration meter forms an "interference fringe" that
moves in proportion to changes in refractive index on the image sensor. Then the interference fringe is
captured by the image sensor and converted into a refractive index after calculating the move amount of
interference fringes with a high degree of accuracy through the phase analysis processing.
The "concentration" display of various mixed gases is enabled by inputting the data such as type and
refractive index of "measuring gas" and "base gas" that compose a mixed gas to the "refractive index"
calculated with high accuracy.
The sensitivity of optical interferometric sensor depends on the length of the chamber that flows gases.
Because the chamber length is physically unchangeable, high accuracy is maintained over a long period of
time.
Chamber
Prism
Plane parallel mirror
Lens
Image sensor
LED light source
Mirror
LED light source
Half mirror
Schematic view of optical interferometric sensor
- 54 -
FI-8000
Measuring Gas Specifications by Type
TYPE □ - 24 – 50
TYPE □ - 48 – 52
Anesthetic gas
Fumigation gas
NOTE


Measuring gases vary by the type of the concentration meter. The type of
FI-8000 can be checked with the nameplate attached to the side of the main unit.
(See the right figure for the nameplate location.)
How to identify the type.
<Draw-in Type>
A
Manual draw-in by handy aspirator
P
Automatic draw-in by built-in pump
< Chamber Length >
05
5mm
24
24mm
48
48mm
< Measuring Gas >
50
Anesthetic gas
52
Fumigation gas
99
Customized

Measuring gases, range, reading accuracy, etc. are included in the measuring gas specifications.
When the anesthetic or fumigation gas specification is used, see "Measuring Gas Specifications by
Type" at the end of this manual. When the customized specification is used, see the separate
measuring gas specifications.
- 55 -
[Anesthetic Gas]
TYPE
TYPE
P-24-50
A-24-50
Anesthetic gas and pump specification
Anesthetic gas and handy aspirator specification
Selectable gases and measuring ranges
Measuring gas type
Measuring range
(Display characters)
(Minimum digit)
Halothane in O2
0.00 - 6.00 vol%
1
(HALOTHANE in O2)
(0.01 vol%)
Isoflurane in O2
0.00 - 8.00 vol%
2
(ISOFLURANE in O2)
(0.01 vol%)
Sevoflurane in O2
0.00 - 10.00 vol%
3
(SEVOFLURANE in O2)
(0.01 vol%)
Desflurane in O2
0.00 - 20.00 vol%
4
(DESFLURANE in O2)
(0.02 vol%)
Halothane in AIR
0.00 - 6.00 vol%
5
(HALOTHANE in AIR)
(0.01 vol%)
Isoflurane in AIR
0.00 - 8.00 vol%
6
(ISOFLURANE in AIR)
(0.01 vol%)
Sevoflurane in AIR
0.00 - 10.00 vol%
7
(SEVOFLURANE in AIR)
(0.01 vol%)
Desflurane in AIR
0.00 - 20.00 vol%
8
(DESFLURANE in AIR)
(0.02 vol%)
Reference gas
(REF CAL value)
AIR
(1.57 vol%)
AIR
(1.65 vol%)
AIR
(1.70 vol%)
AIR
(2.10 vol%)
AIR
(0.00 vol%)
AIR
(0.00 vol%)
AIR
(0.00 vol%)
AIR
(0.00 vol%)
Drift amount*
±0.11 vol%
±0.11 vol%
±0.12 vol%
±0.14 vol%
±0.11 vol%
±0.12 vol%
±0.12 vol%
±0.16 vol%
Interferometric chamber length: 24 mm
Reading accuracy: ±(Reading - REF CAL value) x 0.03
REF CAL value:
Drift amount:
Reading accuracy
A value that should be read in measuring a reference gas
Drift of reading that may be caused by ±10°C change in temperature
The accuracy right after reference gas calibration (REF CAL)
Special caution
*1)
Because the substance does not volatilize easily, the upper concentration in the measuring
range may not be reached depending on the temperature or pressure.
- 56 -
[Fumigation Gas]
TYPE
TYPE
P-48-52
A-48-52
Fumigation gas and pump specification
Fumigation gas and handy aspirator specification
Selectable gases and measuring ranges
Measuring gas type
Measuring range
(Display characters)
(Minimum digit)
3
Methyl bromide in AIR
0 - 200 g/m
1
3
(CH3Br in AIR)
(0.2 g/m )
3
Methyl iodide in AIR
0 - 200 g/m
2
3
(CH3I in AIR)
(0.2 g/m )
3
Sulfuryl fluoride in AIR
0 - 200 g/m
3
3
(SO2F2 in AIR)
(0.5g/m )
Methyl bromide in AIR
0.000 - 5.000 vol%
4
(CH3Br in AIR)
(0.005 vol%)
Propylene oxide in AIR
0.000 - 10.000 vol%
5
(PO in AIR)
(0.005 vol%)
3
Phosphine in AIR
0.0 – 50.0 g/m
6
3
(PH3 in AIR)
(0.1g/m )
3
Hydrogen Cyanide in AIR
0.0 – 200.0 g/m
7
3
(HCN in AIR)
(0.1g/m )
Reference gas
(REF CAL value)
AIR
3
(0.0 g/m )
AIR
3
(0.0 g/m )
AIR
3
(0.0 g/m )
AIR
(0.000 vol%)
AIR
(0.000 vol%)
AIR
3
(0.0 g/m )
AIR
3
(0.0 g/m )
Drift amount*
±5.0 g/m
3
±5.0 g/m
3
±7.0 g/m
3
±0.110 vol%
±0.100 vol%
±2.1 g/m
3
±5.5 g/m
3
8
Interferometric chamber length: 48 mm
Reading accuracy: ±(Reading - REF CAL value) x 0.03
REF CAL value:
Drift amount:
Reading accuracy
A value that should be read in measuring a reference gas
Drift of reading that may be caused by ±10°C change in temperature
The accuracy right after reference gas calibration (REF CAL)
Special caution
*1)
Measuring gases are highly toxic.
Carefully handle the gases discharged from the gas outlet (GAS OUT) and take sufficient
safety measures.
- 57 -
- 58 -
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