SENSOR MODULE FOR CONTACTLESS PROTECTION OF PAINTINGS
The ultra-compact HDF-OPTICAL sensor module can be easily installed behind paintings and pictures. It is fixed to the wall behind the object. A low-energy IR signal is emitted twice per second. The reflection is monitored. If any changes occur, an alarm is triggered. This enables detection, in case the picture is removed. The low energy, the very short pulse time and the large-area distribution of the IR rays prevent damage to the back of the painting to be monitored.
HDF-OPTICAL can be used both for pictures hanging on gallery rails and for wall-mounted pictures. The integrated 868 Mhz transmitter module achieves a high range even in solid buildings such as castles and palaces. The Human Detector Flex sensor HDF-OPTICAL can be combined with all alarm and voice output devices (such as HDF-BUZZER and HDF-SPEECH) and the alarm monitoring unit HDF-AMD.
The highlights at a glance, please click on the pictogram for further information:
|Technology||Wireless sensor module for optical monitoring of paintings|
|Detection method||IR reflectance measurement with low energy density|
|Emphatic installation||Concealed installation behind the picture or frame|
|Transmission frequency||869,5 MHz|
|Transmission power||+ 15 dBm|
|Range||Up to 1500 m in open area, good penetration of walls due to modulation with
frequency spread spectrum modulation *1
|Supply voltage||3 V lithium battery CR2450 changable, external supply voltage 8-14 V AC/DC *2|
|Supply current||Typ. 2 μA standby, 20 mA measuring, 50 mA transmission, 42 μA on average|
|Response time||Typically 50 ms for complete transmission|
|Other functions||Concealed micro switch for switching on and off
Micro push-button for linking individually and for test mode
IR transmitter and receiver unit (detection range up to 25 mm)
Automatic microprocessor controlled calibration
Battery life up to 20 months *3
Monitoring strength of receive signal
Monitoring battery voltage (alarm before end of battery life)
All operating modes supported (EASY-, MULTI- and PROFI-Mode) *4
|LED||3 mm LED red indicating radio operation, 3 mm LED green indicating program function|
|Dimensions||70,4 mm (L) x 50,4 mm (W) x 17 mm (H)|
|Weight||Approx. 41 grams including battery|
|Material of casing||Impact-resistant plastic ABS UL94V-1|
|Protection class||IP20 (EN 60529)|
|Temperature range||-10° C bis +60° C if powered|
|Conformity||EN 61000-6-2; EN 61000-6-3; EN 62368-1; EN 63311
ETSI EN 301489-1, ETSI EN 301489-3, ETSI EN 300220-2; EN 63000 (RoHS)
*1 The range achieved may vary depending on the spatial conditions. All measurements carried out with standard module antenna.
Specifications are subject to change without prior notice. All measurements were performed under specific conditions.
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