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IST-47RTS282E
and cause false alarms. We recommend ventilating the room when products like these are used. Alcohols, Hydro-
gen and volatile organic solvents in great quantity cause false alarms, and then the cell needs one or more hours in
clean air to recover the normal sensitivity conditions.
TEST and CALIBRATION
PAY ATTENTION: This procedure has to be made with extreme attention and by authorized and trained
people; because starting this procedure it will start both Outputs (relays) causing the activation of con-
nected alarm devices.
Operation Check, Zero Adjust, and Calibration: are different code protected functions. To access these func-
tions is necessary to insert the relevant "Code" through the keys F1s and F2. To have the key pressure recog-
nized, hold pressing it for around a second (until the green Led doesn't switch off for a moment). Then the next key can be
pressed. In case of error all it takes is waiting around 10 seconds and the sequence is automatically erased.
The Calibration Check is a function code free.
Calibration Kit, Sample Gas Bottles (for Calibration Check and Calibration) the mixture to be used depending on the
model installed is shown in the table below:
MODEL
47RTS282EA - 47RTS282A-H
47RTS282EC-S–47RTS282EC-H 300 ppm
47RTS282ES
47RTS282EH
47RTS282EHCN
47RTS282EN
47RTS282EN2
47RTS282EHCL
47RTS282ECL
It is possible to use either the disposable cylinders with adjust valve or the high pressure ones with reduction
gear. Some cylinders have a fixed flower reducers, make the necessary value in
necessary the calibration kit model TC014 (stainless steel). To ensure that the gas concentration reaches sen-
sor, use steel reduction gear and Teflon tubes or other compatible materials which do not disperse gas.
"INSTRUMENT OPERATION CHECK" (Check Code: F2, F2, F1, F1): this function allows to effect a functional test
of the detector. After having inserted the "Check Code", all Led are switched off and all the relays are deactivated.
Then they will switch on in sequence, the Led, from the yellow up to the 3° red. To the lighting of the various Led it
corresponds the activation of the relevant relays (relay "FAULT" with the yellow Led, relay "ALARM1" with the 1° red Led, relay
"ALARM2" with the 2° red Led, relay "ALARM3" with the 3° red Led). At the end all the Led will remain lighted for around 5
seconds, then the detector returns at the conditions of normal operation. It is advisable to perform this operation
every 12 months according to the use. Note: this function is not working if the 1° and/or the 2° and/or the 3° red
Led have already turned on.
"ZERO ADJUST" (Zero Code: F2, F1, F1, F2): this function is to adjust the Zero sensor and can be done in clean
air only (environment without the presence of toxic gas or other pollutants). Consider that the 47RTS282E series have a so-
phisticated follower of zero, that every hour will reset the sensor, if of course there is the presence of gas. If neces-
sary, perform this operation after installation or after changing the "Cartridge" or every 6-12 months depending on
environmental conditions. After entering the "Zero Code" as confirmation of the operation, there will be a flashing
st
1
red Led and output becomes 4.0 mA.
Note: This function is not working if the 2
value shown in the table below, depending on the model. In this case, please recalibrate the unit and/or replacing the
st
"Cartridge". In case the 1
47RTS282EA
47RTS282EC-S
47RTS282EA-H
47RTS282EC-H
4,8 mA
4,8 mA
15ppm NH
15ppm CO
3
"CALIBRATION" (Calibration Code: F2, F2, F2, F1, F2, F1): this function allows completely recalibrate the sensor
using the gas mixture indicated above.
Warning: to guarantee that no errors of elaboration happen, the possibility exists that during the Calibration the yel-
low Led switch off every 8 seconds, in this case interrupt the procedure, switch off and switch on the instrument and
repeat the Calibration. If condition persists it will be necessary to send the detector to the supplier for the reparation.
Important note: during Calibration routine the mA output indicates 0mA.
The "Calibration" can be done in clean air only (environment without the presence of toxic or other polluting gas). With the
keys perform the "Calibration Code". Wait until the yellow and green Led switch on fix and the 1
flash. Insert the TC014 on the sensor holder and adjust the influx of the gas the way that the flow meter reaches
the value indicates in table below in column 3, depending on the model
Wait around 3-5 minutes, until the 3
st
rd
the 1
and 3
red Led are switched off for at least 2 seconds (but if the 1
minutes means that the gas flow is not constant or unsatisfactory, or the concentration is not as required, stop the
operation, turn off the instrument and recalibrate). Then, close the gas cylinder and remove TC014. At this point we
can have two possibilities:
Yellow and green Led illuminates: the calibration routine is correct. Wait 8 seconds, until the instrument auto-
matically restores the normal working conditions. (See "Operational Description > Preheating").
Comelit Group S.p.A. - Via Don Arrigoni 5 - 24020 Rovetta S. Lorenzo BG Italy
Istruzione / User's Manual / Manuel d'utilisation
Sample gas bottle
100 ppm
Ammonia (NH
Carbon monoxide (CO)
10 ppm
Sulphur dioxide (SO
50 ppm
Hydrogen sulphide (H
10 ppm
Hydrogen cyanide (HCN) in Nitrogen
100 ppm
Nitric oxide (NO)
30ppm
Nitrogen dioxide (NO
10ppm
Hydrogen cloride (HCL)
10ppm
Nitrogen dioxide (NO
nd
and/or 3th red Led are already ON or the mA output is higher than the
red Led will be already ON, only instead of flashing it will switch off for confirmation.
47RTS282ES
47RTS282EH
6,4 mA
4,8 mA
3ppm SO
5ppm H
S
2
2
rd
red Led lights (and while it is ON), press the key F2 and hold it pressed until
)
in Nitrogen
3
in Nitrogen
)
in Nitrogen
2
S) in Nitrogen
2
in Nitrogen
)
in air
2
in Nitrogen
)
in air
2
47RTS282EHCN
47RTS282EN
8 mA
5,6 mA
2,5ppm HCN
10ppm NO
(see also
st
red Led continues to blink more than 5-6
Our Code / Valve
BO501 / BO303
BO210/ included
TC011/TC014
BO518/ BO303
BO520 / BO303
BO529 / BO303
BO522 / BO303
Available on request
BO527 / BO305
Available on request
Table, column 3, page
47RTS282EN2
47RTS282EHCL
6,6 mA
8 mA
5ppm NO
2,5ppm HCL
2
st
red Led starts to
Fig.3).
Tel. +39 0346 750 011 - Fax +39 0346 71436
Pag.11/20
KIT Code
TC014
TC014
TC014
TC014
TC014
TC014
TC014
TC014
11. Is also
47RTS282ECL
4,8 mA
0,5ppm HCL
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