Tecno Control SE237S F1-H Manuel D'utilisation page 7

IST-2137.SF01.01
next key can be pressed. In case of error all it takes is waiting around 10 seconds and the sequence is automatical-
ly erased.
Calibration Kit, Sample Gas Bottles (for Calibration Check and Calibration) please, only using a mixture refriger-
ant gas in Air (20.9% Oxygen). Semiconductor sensors cannot work in oxygen deficiency. It is possible to
use either the disposable one litre cylinders with adjust valve or the high pressure ones with reduction gear. Is also
necessary the Tecnocontrol Calibration Kit mod. TC014 (made of stainless steel). To ensure that the gas reaches
the sensor, use stainless steel reducers, Teflon tubes or other compatible materials, which do not disperse the gas.
Model
SE237S F1-H 500 ppm of R134a refrigerant gas
SE237S F2-H 500 ppm of R404a refrigerant gas
SE237S F3-H 500 ppm of R407c refrigerant gas
SE237S F4-H 500 ppm of R410a refrigerant gas
SE237S F5-H 500 ppm of R507 refrigerant gas
"INSTRUMENT OPERATION CHECK" (Check Code: F2, F2, F1, F1): this function allows to effect a functional test
of the device. After having put the system in safety and inserted the "Code Test", all LED are switched off and all the
relays are disarmed. Then they will switch on in sequence, the LED, from the yellow up to the 3
ing of the various LED it corresponds the activation of the relevant relays (relay "FAULT" with the yellow LED, relay
"ALARM1" with the 1 st red LED, relay "ALARM2" with the 2
will remain lighted for around 5 seconds, then the central returns at the conditions of normal operation. It is advisa-
ble to perform this operation every 6-12 months according to the use.
Note: this function is not working if the 1
"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 refrigerant gas or other pollutants) and after at least 48 hours that
the detector is powered (even if the detector is turned off for a few hours). After having inserted the "Zero Code",
as a confirmation of the operation carried out there will be 1 I flash of the 1
4,0 mA. We suggest performing this operation
ter installation or after the change of the cartridge and every 6-12 months based on the environmental conditions.
Note: This function is not working if the 2
red LED is already switched on only instead of flashing it will switch off for confirmation.
"CALIBRATION CHECKS" (no Code required): this operation allow doing a real functional test of the instrument
with gas after the "Calibration" routine, or after the installation. (after at least 48 hours that the detector is pow-
ered).The "Calibration Check" routine should be done during the periodic maintenances because this is the only
method to verify the instrument real functioning. The "Calibration Check" should be done using sample gas bottles
with the gas mixture of refrigerant according to the model.
Insert the TC014 over the sensor holder; adjust the sample gas bottle valve as the flow meter indicates around 0.2
l/mins (see Fig.3). Wait around 3 minutes, then verify, with the voltmeter test leads (mA scale) between the termi-
nals "-" and "S" the mA output increases up to about 12 mA (± 3)
vates Alarms as shown in chapter "Operational Description".
NOTE: In case the output was used and connected to a control unit, place the voltmeter test leads (mV scale) on
the Test-Point "TESTmA", ensuring that it reaches a value between 90 and 150 mV, [corresponding to 12mA (±3)
output, and the control unit should be display about 500ppm (±200)]. If the value result is more different, it is nec-
essary to recalibrate the sensor (see "Calibration"). Then close the gas bottle and remove TC014, after mA output, will
slowly decrease up to 4mA.
"CALIBRATION" (Calibration Code: F2, F2, F2, F1, F2, F2): this function allows completely recalibrate the sensor.
Warning: to guarantee that no errors of elaboration happen, the rare possibility exists that during the Calibration
the yellow LED switch off every 8 seconds, in this case interrupt the procedure, switch off and witch on the instru-
ment 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.
NOTE: you can exit the calibration function by pressing F1 and F2. In this case the system returns to normal oper-
ation, maintaining the previous calibration.
The "Calibration" can be done in clean air only (environment without the presence of refrigerant, or other polluting gas), and af-
ter at least 48 hours that the detector is powered (even if the detector is turned off for a few hours). With the
keys perform the "Calibration Code ". Wait until the Yellow and Green LED switch on fix and the 1
flash. Insert the TC014 into the sensor holder to regulate the influx of the gas the way that the flow meter indicates
around 0.2 l/min (see Fig.3). Wait around 3 minutes, then when the 1
press the key F2 on the instrument and hold it pressed until 1
LED continue to flash, wait that the 1
TC014. At this point we can have two possibilities:
Yellow and Green LED illuminates: the calibration routine has correctly been performed. Wait 8 seconds, until
the instrument automatically restores the normal working conditions.
Yellow LED illuminates: the routine has failed. In this case, wait 8 seconds, until the instrument automatically re-
peat the "Calibration" routine without inserting again the code. If the 3rd Red LED flashes, wait until it turn fixed on,
then press the F2 key. If the failed condition still persists, even after cartridge replacement, it will be necessary to
send the detector to the manufacturer for reparation.
TECNOCONTROL S.r.l. Via Miglioli 47 SEGRATE ( MI )
Istruzione / User's Manual / Manuel d'utilisation
Sample Gas Bottle
nd red LED, relay "ALARM3" with the 3
st
and/or the 2
only if the 1st Red LED is on (or output is different from
nd
and/or the 3
st red LED switch on again and repeat the operation). Then, close the gas cylinder and remove
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
nd rd
and/or the 3 red LED have already on.
st
red LED and the output will become
rd
red LED have already been switched on .In case the 1
(see Figure 2) Check, also that the instrument acti-
st
red LED switch on (and while it's SWITCHED ON),
st
red LED switch off for at least 2 seconds (if the 1
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Pag.7/12
NOTE
Available on request
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rd
red. To the light-
rd red LED). At the end all the LED
st
red LED starts to
4mA), af-
st
st red