RIKEN RX-516 User manual

PT0E‑0730
RIKEN PORTABLE COMBINATION GAS DETECTOR
MODEL ＲＸ−５１６
ＲＸ−５１７
OPERATION MANUAL
MARINE USE
Precaution in operation
・Afterreadingthis manualwell, starttooperate thisinstrument.
・Keep this manual where to carry out easily
・When take out this manual by use of construction work, be sure to put it
where it was.
・Do not use this instrument for no other than given purpose.
・When operate this instrument without using this manual or repair it by use of
no other parts than the genuine one, the safety and quality of products could
not be guaranteed. When any accident should take place by those irregular
method, we cannot assume the responsibility for it.
2-7-6Azusawa Itabashi-ku Tokyo,174-8744 Japan
Phone : Tokyo
(
03
)
3966-1113
Telex : 272 2638 RKNFNE
Fax : [phone] GⅢ
E-Mail : [e-mail]

PT0E‑0730
1
In the beginning
It is of our great pleasure to purchase Riken portable combination gas detector model
RX-516/RX-517 this time. This instrument is an explosion-proof type portable gas
detector which is designed to measure the presence of the following gas at crude oil
tankers shown below.
RX-516
•Hydro carbon(HC) :0-100.0%LEL/2-100.0vol% (Iso-butane cal.)
•Oxygen(O2) :0-25.0 vol%
•Hydrogen sulfide(H2S) :0-100.0ppm
RX-517
•Hydro carbon(HC) :0-100.0%LEL/2-100.0vol% (Iso-butane cal.)
•Oxygen(O2) :0-25.0 vol%
•Hydrogen sulfide(H2S) :0-100.0ppm/0-1000ppm
This instruction manual is a guide book for operation to use and operate model
RX-516/RX-517. It is kindly requested to read and understand this content by
experienced users as well as beginners. The following headline shall be shown to carry
out the safety and effective work in this instruction manual.
Danger
This means that it gives the serious harm to the human life, body or material directly
such as touching high voltage.
Warning
This means that it gives the serious harm to the human body or material if do not
perform the operation according to the instruction manual.
Caution
This means that it gives the slight harm to the human body or material if do not perform
the operation according to the instruction manual.
＊ Note
This means the advice in the operation.

PT0E‑0730
2
C O N T E N T S
１．Caution in operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３
２．Name of each part・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・４
３．Operation・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・８
３−１．Check item before operation・・・・・・・・・・・・・・・・・・・・・ ８
３−２．Preparation・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・８
３−３．Start‑up and end‑up・・・・・・・・・・・・・・・・・・・・・・・・・・９
３−４．Flow monitor check・・・・・・・・・・・・・・・・・・・・・・・・・・ １０
３−５．Zero point adjustment・・・・・・・・・・・・・・・・・・・・・・・・ １０
３−６．Operational procedure・・・・・・・・・・・・・・・・・・・・・・・・ １２
３−７．Peak value mode・・・・・・・・・・・・・・・・・・・・・・・・・・・・１３
３−８．Power pump ON/OFF・・・・・・・・・・・・・・・・・・・・・・・・・・・１３
３−９．Operation finished・・・・・・・・・・・・・・・・・・・・・・・・・・ １４
３−10. Practical application・・・・・・・・・・・・・・・・・・・・・・・・ １５
４．Alarm・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ １６
４−１．Alarm display・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１６
４−２．Alarm buzzer & lamp・・・・・・・・・・・・・・・・・・・・・・・・・ １６
４−３．Trouble display・・・・・・・・・・・・・・・・・・・・・・・・・・・・１７
５．Each function・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１９
５−１．Operation mode control・・・・・・・・・・・・・・・・・・・・・・・・ １９
５−１−１．Alarm setting・・・・・・・・・・・・・・・・・・・・・・・・・・２０
５−１−２．Date/time setting・・・・・・・・・・・・・・・・・・・・・・・・２１
５−２．LCD back light・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ２１
５−３．Data logger・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・２２
６．Maintenance check・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・２３
６−１．Battery replacement・・・・・・・・・・・・・・・・・・・・・・・・・・２３
６−２．Gas calibration (Span adjustment)・・・・・・・・・・・・・・・・・・・２４
６−３．Filter replacement・・・・・・・・・・・・・・・・・・・・・・・・・・ ２７
６−４．Sensor replacement・・・・・・・・・・・・・・・・・・・・・・・・・・ ２７
６−５．Daily check and regular check・・・・・・・・・・・・・・・・・・・・・２７
６−６．The replacement of parts・・・・・・・・・・・・・・・・・・・・・・・ ２８
６−７．Storage or treatment not to use for a long period)・・・・・・・・・・ ２９
７．Scrap of products・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ２９
８．Trouble shooting・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ３０
９．Definition of words・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３１
１０．Specifications・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ３２
１１．Detection principle・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３３
１１−１．NDIR method (Non‑Dispersive Infrared)・・・・・・・・・・・・・・・・・３３
１１−２．GALVANIC CELL method・・・・・・・・・・・・・・・・・・・・・・・・・ ３３
１１−３．ELECTRO‑CHEMICAL CELL method・・・・・・・・・・・・・・・・・・・・・ ３４
RIKEN STANDARD WARRANTY・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３５

PT0E‑0730
3
１．Caution in operation
To maintain the function for safety, follow the following instruction.
Warning
・Do not modify nor change the circuit and structure etc. When modify or change, it could
not maintain the function.
・This is explosion‑proof product. Battery has to be replaced in non‑hazardous zone. The
battery replacement in hazardous zone shall be out of the scope for explosion‑proof
product.
・This is explosion proof. Be sure to operate with carrying case on.
・Do not measure in the environment of oxidant gas presence. When measure, it may shorten
the sensor life.
・When measure under organic solvent gas presence, do it in short time and make sensor
cleaning by sucking fresh air after measurement.
Caution
・Do not drop or damage it. This is a fire instrument. When strong shock is given, the
function may be the case not to maintain. Especially, when power is on, the shock from
outside is easy to receive. So, the caution at this point is needed.
・Keep it from the direct splash of water. As this is not of drip‑proof, it may cause
the trouble by splash of water.
・Do not give the electric noise such as by walkie‑talkie during operation. When receive
the electric noise, it may cause the trouble of reading and instrument.
・When the atmospheric pressure and temperature are changed, it may affect the gas reading.
・When it is condensed, the normal operation is impossible.
・Be sure to mount the internal filter and filter tube.

PT0E‑0730
4
２．Name of each part
①POWER／ENTER SW
This is used for power ON/OFF and entering the figure.
②PUMP／− SW
This is used when make the pump ON/OFF and deverse the figure.
③ZERO／＋SW
This is used when make zero adjustment and increase the figure.
④PEAK SW
This is used when to let the peak displayed.
⑤MODE／ESC SW
This is used when enter the set mode or cancel the input.
⑥ALARM LAMP
When trouble alarm triggers, this shall blink and light out.
⑦LCD with Back‑light
This shows the gas reading.
⑧H2S gas range mode cock (for model RX‑517 only)
The mode for H2S Low ⇔ H2S High can be changed over by this switch.
① ②③ ④ ⑤⑥
⑦
GAS OUT
H2S Low・HC・O2 GAS IN
⑧
GAS OUT
H2S high

PT0E‑0730
5
《Display of RX‑516／517》
Hydro carbon「HC」
RX‑516／RX‑517
H
y
dro
g
en sulfide（Low）「H2S」
Oxygen「OXY」
RX‑517
Hydrogen sulfide（High）「H2S」
＊Caution
・For HC, when it goes over 100%LEL, it shall be changed to vol% automatically.
《RX‑517 case》
・H2S can be changed over by H2S gas range mode cock. (H2S High ⇔ H2S Low)
①H2S low display ②H2S high display

PT0E‑0730
6
【Standard accessories】
①Carrying case with shoulder strap ②Filter tube with flow monitor and junction tube
③Gas sampling probe ④Gas sampling hose
⑤Alkaline battery

PT0E‑0730
7
【Optional accessories】
①Gas sampling hose 30m with plummet ②Gas sampling hose 30m with float type sampling head
③Gas sampling bag 1L for LEL and VOL and calibration gas cylinder
⑤Absorbent cotton ⑥Water proof filter for filter tube (10pcs.)
⑦Metal storage box ⑧H2S calibration checker (for H2S)
⑨Data logging software ⑩Communication cable

PT0E‑0730
8
３．Operation
３−１．Check item before operation
RX‑516 or 517 instrument：
・Check that there is no damage for display unit etc.
Filter tube with flow monitor：
・Check the dirt of inside cotton filter. When it gets dirt, replace the cotton filter with
new one.
・When water drops remain, wipe it out and change it with new one.
・Check that these is no crack or damage.
・Check that these is no loose mount on the nipple.
Gas sampling hose：
・Check that there is no crack, creek or twist on the instrument.
３−２．Preparation
（1） Dry batteries are put into instrument.
（2） Put carrying case on to instrument.
（3） Connect the ①instrument(Gas inlet)＋②Filter tube with flow monitor＋③Sampling hose
respectively.
For gas sampling, 3 kinds tip formation are available and change it according to he measuring
environment.
Standard: Sampling hose (1m) and gas sampling probe
Optional: Sampling hose (30m) with plummet
Sampling hose with floating gas sampling head (30m)
・Connection with sampling hose
Take knurling part by fingers and pull ①arrow mark to → direction. Put it to the arrow
mark ②←direction. Then, release the finger from the knurling part. Further press and
sound tick, and then, locked.
Knurling part
①
② ③
①
②

PT0E‑0730
9
３−３．Start‑up and end‑up
When press power switch for 3 sec, the power gets on and this shall start up sequencing the
program of the voltage check, filter connection check and sensor connection check respectively.
Press power switch for 3 sec.
PROBE OK？
SENSOR CHECK
SENSOR OK
WARM UP 30
Accessory connection check
（Display word atternately） FILTER OK？
Warm up
Operation mode
ENTER key
STAND BY
Operation ready
Press POWER SW for 3 sec
GOOD − BYE
PREPARATION
Date/time display
Stand‑by
FAIL SENSOR
WARM UP 30
STAND BY
【Sensor normal】 【Sensor trouble】
Trouble sensor shall
show …….
Power off
・Press ENTER key

PT0E‑0730
10
３−４．Flow monitor check
When the power gets ON, the pump shall start operation check that suction works properly by
filter tube with flow monitor.
At normal sucking（Can see float）
Not sucking（Can not see float）
３−５．Zero point adjustment
Zero point calibration for this instrument shall be done HC, O2(Oxygen), H2S(Hydrogen
sulfide).
Float
Caution
When make zero adjustment, proceed to do it after having fresh air sucked into instrument
for over 1 min. When make zero adjustment through the suction of gas present atmosphere,
the correct measurement can not be done and it may lead to the accident.

PT0E‑0730
11
＜FLOW CHART OF ZERO POINT ADJ＞
ZERO MODE DISPLAY
HOLD KEY
ADJ ZERO OK
《Zero set OK》
ZERO SET OK FAIL ZERO
・Press ZERO key for 3 sec.
Press for 5 sec and move to
the display.
《Zero adj fails》
FRESH AIR？
・When press ENTER key, HC, O2, H2S zero adj
shall start.
・Calibration
ZERO key
ENTER key
ESC key
Move to zero adj
for CO2 adj ESC key
All are OK HC fails
＊Note
・To cancel previous operation, press ESC key.
But can not cancel after press ENTER key.
《RX‑517 case》
・For zero adjustment of H2S high, proceed to make zero adjustment by changing to the
display of H2S high

PT0E‑0730
12
３−６．Operational procedure
Approach the sampling hose to the sampling site for measurement and leave sampling gas
sucked.
・Take care that any twist on the sampling hose can not be made.
・Stop sampling hose at the point of measurement.
・From the hose length consider the delay time and read out the reading after the reading
gets stable.
Danger
・Oxygen depletion air etc may be exhausted from gas outlet. Do not breathe in there
absolutely.
・High density gas over (LEL) may be exhausted. Do not approach fire there absolutely.
Caution
・When suck air containing gas, do it after removing water vapours.
・When suck high temp gas, do it after being used to be ambient temp.
・Do not have water and oil sucked wrongly, the internal pump and sensor may be troubled.
・When measure, check the roaring sound of pump and flow monitor.
It is impossible to measure at pump work stop.
・Do not block the pump outlet, the reading shall show a little higher.
・When measure oxygen in inert gas for a long time, be sure to measure lower than 15% CO2
by all means. When exeed higher density than 15%, shorten the time for this measurement
as life of oxygen sensor may be shortend.
Warning
・In the place where environment temp is remarkably changed, there may be the case that
accurate oxygen measurement is impossible by temperature change. Wait until the
instrument may be used to the ambient temp (About 10 min) and start measurement after
having made zero calibration again.
・Do not use for after purpose then the measurement of combustible gas, vapor and toxic
gas mixchares.
＊Note
When measure the high density gas than LEL, the hung‑up phenomenon.
①When measure HC by vol%, do measure it as it is.
②When make zero adjustment, remove the sampling base and supply fresh air sucked into
instrument.
③When measure by %LEL, make air cleaning of sampling hose and start to measure after
reading goes down to zero.

PT0E‑0730
13
３−７．Peak SW value mode
When press PEAK SW during operation, the peak valve from power on to the current point (HC,
H2S = MAX, O2=MIN) shall be shown.
When hold and press ESC key for 3 sec during the peak value display, the peak value shall be
cleared.
３−８．Power pump ON/OFF
When move the sampling point and stop to operate temporarily, the pump only stops operation.
When stop the pump operation, the power consumption shall be reduced by about 40%. Then
the other than pump is on active and once the pump re‑starts up, this shall start operation
immediately.
Peak mode Operation mode
ESC SW
P E A K
Operation mode Peak mode
PEAK SW
P E A K
【RX‑517】 H2S change over
P E A K
H2S high display Peak display
＊Note
《RX‑517 case》
・In the H2S high display, the peak value of H2S is displayed.
・When changed from peak display, it changes to the operation display.
【RX‑516／517】
PEAK key
＊Note
・When do not operate for the time being, make off the power. Other than pump is active
and if it is left alone, the battery is consumed up.
＊注記
《RX‑517 case》
All peak value is cleared on both the displays of HC, O2, H2S low and the another one
of H2S high.

PT0E‑0730
14
３−９．Operation finished
（1）Treatment after operation
Wind up sampling hose so treat it can not be twisted and bent.
Supply fresh air in the condition of sampling hose connected and make air‑cleaning until
the reading gets to zero nearly.
When use the floating gas sampling head or 30m sampling hose (30m: optical acc.), be sure
to make air‑cleaning for 5 minutes before use.
（2）Power OFF
When hold and press power SW for about 5 sec, the buzzer sounds 8 times and the power will
be off.
HOLD KEY
PUMP OFF
HOLD KEY
PUMP ON
・Press pump key for 3 sec.
・Pump work will be off.
・Press pump key for 3 sec.
Operation mode
PUMP key
・Pump work will be on.
Hold and press for 5 sec and back
to the operation display.
PUMP key
Caution
Never fail to make air cleaning of sampling hose.
When the vapors, water drop and substance remain, there will be the possibility of
remaining material at start‑up. This will be the cause for trouble.

PT0E‑0730
15
３−１０．Practical application
(1) Tank inside of crude oil tanker
By use of sampling hose with plummet, it is available to monitor the gas density in the tank.
《Sample in crude oil tanker》
《Use of sampling hose with plummet》
①Mount the sampling hose to the instrument.
②Put into the tank from the plummet of hose.
③Sampling hose shows the mark at every 5m and stop it at the point desired to stop by checking
the distance.
④Check that the flow monitor works normally.
⑤When the reading gets stable after 3 minutes have passed, read out the value.
⑥When change the sampling point, stop at the sampling point and in the same manner, read
out the reading after over 3 minutes have passed.
《HC read out》
HC in the measuring gas stands for iso‑butane. But the crude oil to be measured is a mixtures.
It is not always to correspond to the gas density. Here, by exerpting the crude oil vapor
to be considered, when read out the value representing normal hexane, it will be nearly value
in reality. In case of normal hexane, from the vapor condition, this gas can not be vaporiged
to high density range (vol%). Then the HC gas in this description should be iso‑butane
gas.
《H2S high density》
High density H2S may effect other sensors for trouble. So, in the atmosphere of high density
H2S to be generated, RX‑517 is recommended.
Caution
When measure O2 in insert gas for a long time, be sure to use CO2 in the atmosphere of
below 15%. When use higher density than 15%, make the measuring time as short as possible.
COMBINATION GAS
DETECTOR
GAS SAMPRING PIPE
GAS
SAMPRING
PIPE
AIR VENT HEAD
WBT
COMBINATION GAS
DETECTOR
GAS SAMPRING PIPE
GAS
SAMPRING
PIPE
AIR VENT HEAD
WBT

PT0E‑0730
16
《Interference measures in inert gas》
In the component of inert gas, a lot of interference gas may be present. When it should be
present so much to affect the measurement, it shall be required to mount the interference
removal filter.
４．Alarm
４−１．Alarm display
①At 1st alarm, the figure will blink and Warring will blink.
②At 2nd alarm, the figure will blink and Alarm will blink.
③At over alarm, the figure will blink and Over will blink.
※Non latched mode after alarm
４−２．Alarm buzzer & lamp action
《2nd alarm》
《Over alarm》
W A R N I N G
A L A R M
O V E R
Alarm≧1st alarm set（HC、H2S）
Alarm≦1st alarm set（O2）
【WARNING display, Intermittent LED, Blink】
Alarm≧2nd alarm set
【ALARM display, Intermittent LED, ON】
Alarm≧F.S.
【OVER display, Intermittent LED, ON】
《1st alarm》
WARNINNG
（1st alarm）
Lamp
ALARM，OVER
（2nd alarm, Over alarm）
Lamp
【Intermittent tone】
【LED blinking】
【Continuous tone】
【LED light‑on】

PT0E‑0730
17
４−３．Trouble display
（1）Low flow alarm
・When low flow trouble triggers, LOW FLOW is displayed and pump stops working.
・Buzzer sounds continuously.
・After checking the cause, reset low flow alarm by ESC key. The pump will re‑start
and return to the operation display.
（2）Low battery alarm
・When the power of battery is dropped, REPLACE BATT. Will be displayed.
・Buzzer will sound continuously.
・After displaying REPLACE BATT., it does not accept other than Power OFF.
・After power off, replace the battery with new one.（See it for 6‑1. Battery replacement）.
REPLACE BATT.
Low battery
POWER OFF operation available only by POWER key.
LOW FLOW
Pum
p
OFF
ESC key
Pum
p
ON
Caution
When low float trouble took place, be sure to check the cause to make low flow.
Especially when suck water, it will be the cause for trouble. After checking the condition
of probe filter tube, re‑start the pump by ESC key. (When press ESC and re‑start in the
water remaining condition, there will be the case of water intrusion into instrument.
For low flow trouble, it shall be cautioned that no error display will be the setting mode.

PT0E‑0730
18
（3）System trouble alarm
・When the program is troubled, SYSTEM FAIL will be shown.
・Buzzer will sound continuously.
・After SYSTEM FAIL is shown, it does not accept other than Power off.
（4）Sensor trouble alarm
・When sensor is troubled, FAIL SENSOR is displayed and the measuring gas for the troubled
will be shown.
（Sensor for trouble detected at start‑up time shall be shown.）
・Buzzer will sound continuously.
・After showing FAIL SENSOR, it does not accept other than Power off.
POWER off available only by power SW
F A I L S E N S O R
S A V E
Power off available only by power SW
SYSTEM FAIL
＊Caution
When try to measure offer gas than the troubled, make power off once and re‑start it.
After checking the start‑up and error, move to the other sensor than the troubled.

PT0E‑0730
19
５．Each function
５−１．Operation mode control
Operation mode
HOLD KEY
D A T E T I M E
①1st alarm display
②2nd alarm
Day/time display
Data logging
・Press MODE key for 3 sec.
MODE key
＋
−
・When hold and press PEAK key for
3 sec at alarm display (①,②),
alarm point will be changed to
alarm set display. →To alarm
setting.
PEAK key
MODE key
To alarm setting
＋
−
−
＋
MODE key
PEAK key
Alarm setting
＋
−
PEAK key
Date setting
MODE key
MODE key
・When hold and press PEAK key for
3 sec, it will be changed to date
display.
L O G R E M A I N
In case of over write
Displayed in the following order
①1st alarm
②2nd alarm
③Data display
④Data logger remaining
・『＋』or『−』 key: When press it,
the display will be changed.
LOG OV ‑ WRITE
W A R N I N G
A L A R M
＊Note
《RX‑517》
・In the display of alarm, H2S high is displayed simultaneously.
・From both display of H2S low and H2S high, it is available to go into mode.