The iSAtech Control Unit is available as a built-in version for installation on DIN rails and as a robust, remote control unit for outdoor installation. This means it can be easily and flexibly integrated into existing water kiosks. It is installed next to the water outlet where it is easily accessible and connected to the valve and meter by cable. This keeps the water technology inside well protected. Power can be supplied flexibly via a solar battery or a rechargeable battery.
If the device is equipped with a LoRa radio module, current credit information can be received, and all consumption and credit data can be transmitted to the iSAtech PayU-Cloud via the iSAtech Radio Gateway.
Online and offline availability
Prepaid credit can be provided in two ways: online and offline.
In online mode, the credit can be topped up at a retailer or via mobile payment services. The credit is automatically available at any online control device when the consumer inserts their NFC ID card.
In offline mode, the credit is stored on the NFC credit card, and the consumer can use it at any online and offline control unit.
Recharging Credit
Prepaid card
Mobile network/Internet
Technology
NFC/RFID card
ISO/IEC 15693-2,-3; 18000-3
433MHz / 868 MHz / LoRa*
Profile
Private: One consumer
Public water (kiosk): Several consumers
Measurement: Quantities (liters, kWh)
Calculation: Time-based
Measurement and monitoring only
Functions
Supply of water, electricity, heat
Measurement, billing, logging
NFC card offline operation
NFC card online operation
Online monitoring
Configuration with NFC card
Power supply
External power supply 7-28VDC
Internal backup battery 3.6V (optional)
Expansion options
I2C port (optional), 2 I/O ports
Connection with patching box
Reed switch pulse or S0 bus (open collector) max. 5 imp./sec.
Hall effect sensor (optional, configurable, calibratable)
Bi-stable valve 6-12VDC (pulse-controlled)
Force-controlled valve (7-24VDC)
Electromagnetic contactor
Pulse
Configurable (e.g.,1l, 10l, 1kWh)
Display
Graphic LCD display (55mm x 18mm)
Encryption
AES-256
Antenna
Internal
SMA connector (optional)
Conformity
CE mark
R&TTE Directive 2014/53/EU
Protection class
Up to IP67
Temperature
-20°C to 55°C
-40°C to 55°C (optional)
Humidity
0 to 95%
Control unit (without connector plug)
Height
97 mm
Width
97 mm
Depth
27 mm
Front panel
Height
150 mm
Width
150 mm
Patching box (without connector plug)
Height
90 mm
Width
35 mm
Depth
35 mm