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The BP SE Sensor is designed to be positioned directly inside the showcases, fi tted using its own fastening bracket. The rear features
metal shielding that, combined with the thermal insulation inside the shell, prevents the formation of frost at the rear of the sensor,
and consequently better thermal insulation from the wall.
Fig. 2.a
2.1 Functions implemented and supervisor
variables available
•
Instant temperature measurement performed every minute.
•
Measurement fi ltering with weighted average based on parameter setting
for product temperature simulation.
•
Data transmission at settable intervals, in minutes (the parameter aff ects
battery life).
•
Monitoring of temperature thresholds for high temperature (HACCP) or low
temperature (product freezing) alarm signals.
•
Automatic mode with preset parameters according to the showcase/
display case (normal, low temperature or open shelf ).
•
Local mode for Clean showcase status signal. Activating the Clean button
disables the high temperature alarms.
•
TimeStamp for recording the instant measurement, expressed in hh:mm.
•
Battery level in mV and residual charge in mAh.
•
Wireless signal level in dBm +100 (less than 8=low, 15-30=medium, higher
than 30=excellent);
•
Temperature alarm status related to the high and low thresholds.
2.2 Sensor confi guration
The sensor is supplied with the address ID set to 127 and cannot be used with
the default ID; the range of available addresses is from 16 to 126. To assign the
ID use the rTM SE handheld accessory. For details on the address assignment
procedure see the instructions in the chapter on the rTM SE handheld further
on.
In emergency situations a new ID can be assigned (limited to the range from
16 to 99) using a magnet (e.g. magnetic screwdriver Carel code 0000000722),
as follows:
1.
Position the magnet on SW1, holding it in position when the green LED
comes on;
2.
The following will be shown in sequence:
-
Green LED ON for 2 to 3s then OFF for 3 to 4s;
-
Orange LED ON for 3 to 4s;
-
Remove the magnet when the LED switches off ;
-
After a few moments the LED comes on yellow for 1s. This indicates
that programming procedure is active (if no actions are performed,
programming mode ends after 4/5 s, indicated by a double yellow fl ash,
leaving all the settings unchanged);
3.
Move the Clean switch SW2 up and down a number of times equal to the
tens of the serial address being set (e.g. 10, once – 50, fi ve times). Each
time switch SW2 is moved up the red LED comes on for 1 s, (confi rming
stimulation);
4.
Subsequently use the magnet to stimulate switch SW1 a number of times
equal to the units (e.g. 1, once – 5, fi ve times). Each time the magnet moves
over the switch the green LED comes on for 1 s (confi rming stimulation).
The order is not important (tens or units fi rst);
5.
After 4/5 s the sensor exits the procedure, with the yellow LED fl ashing
twice (indicating the end of serial address setting mode);
6.
Subsequently the sensor shows the serial address using a sequence of
fl ashes repeated cyclically three times. To read the codes, see the chapter
"Display sensor serial ID" further on.
7.
Moving switch SW2 up interrupts the cycle;
The sensor address has been set and it's ready to be bound to an Access Point.
The procedure can be performed before or after binding to the Access Point.
Make sure not to assign duplicate serial addresses, also considering other
devices in the network. For further information and explanations on the
procedure, see the rTM SE system installation guide.
2. BP SE SENSOR (BUILT-IN PROBE)
Binding procedure
Binding is a special procedure used to associate the sensors with the Access
Point. Once completed, the sensors will send the temperature data measure
wirelessly only to the Access Point defi ned as its parent. Following this, the
Access Point will forward the data to the Modbus® RTU RS485 serial network.
The binding procedure requires the activation of the Access Point wireless
network and activation of the confi guration switch SW1 using a magnet (see
the fi gure), done by passing the special magnet over magnetic switch SW1
for a few seconds. The LEDs will come on in sequence: green (1s), yellow (4 to
5s), green (6 to 10s). If at the end of the sequence the red LED fl ashes briefl y (1
to 2s), binding with the Access Point has failed. If the operation is successful,
successively activating switch SW1 will start manual data transmission,
signalled by the green LED fl ashing quickly twice.
If the automatic or manual data transmission fails, the red LED will fl ash briefl y
after the green LED comes on.
After this operation the sensor will start sending data on the temperature
measured, in the time interval set by parameter. Check that the LED comes on
for a few seconds at regular intervals, based on the transmission time set for
parameter (HR_01 TRANS_CYCLE). When the operation has ended close the
wireless network on the Access Point. The wireless network can be opened
and closed using the rTM SE handheld accessory.
Display sensor serial ID
To check the sensor serial address, proceed as follows:
•
Move switch SW2 (CLEAN) up, stimulate SW1;
•
The LED starts fl ashing in sequence. Count the number of the fl ashes to
calculate the hundreds (Yellow), tens (Green) and units (Red). Removing
the magnet or lowering the button exits the display probe serial address
procedure.
•
Move switch SW2 back down.
Yellow
Red
X 100
X 10
Hundreds
Tens
Example
0 yellow fl ashes
5 red fl ashes
0
5
Sensor address ID=57
Resetting the sensor (maintaining the serial address)
The reset procedure is required when the sensor needs to be moved and
associated with another wireless network (diff erent Access Point). This
operation may be required to reconfi gure the sensor in a diff erent wireless
network. The value of the serial address remains the same, and after a new
binding operation the sensor is reactivated in the wireless network. To reset
the sensor, proceed as follows:
1.
Place the magnet near magnetic switch SW1 (the green LED will come on);
2.
Hold the magnet in place until the green LED goes off and the yellow LED
comes on (after approx. 6 to 10 sec.);
3.
When the yellow LED comes on, move the magnet immediately away
from the sensor and check that the LED fl ashes quickly before going off
(RESET COMPLETE).
To check that the sensor has been reset, proceed as follows:
1.
Make sure the Access Point wireless network is closed (L1 fl ashing slowly
1s);
2.
Stimulate switch SW1 on the sensor with the magnet;
3.
Check that LEDs come on in the following sequence:
-
green LED (1 s);
-
yellow LED (4 to 5 s);
-
green LED (15 s);
-
red LED (1 s);
Make sure that there are no sensors with the same serial address in the new
network. If this is the case, assign a new serial address.
13
"Wireless probes" +0300030EN - rel. 1.0 - 16.07.2010
ENG
Green
X 1
Units
Tab. 2.a
7 green fl ashes
7
Tab. 2.b
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