GenII - Model RX250AL -Receiver / Logger
The RX250AL Receiver logger is the heart of a GenII logging system. Because the RX250AL is responsible for receiving and storing the data, it is not necessary to have a PC permanently connected. The built-in battery means data logging is not interrupted even if there is a temporary AC mains failure. Multiple RX250ALs can be used for wide area coverage. Alarms (including SMS alarms) come as standard. (To use SMS alarms, a GSM modem is required).
- Data Logger with integral receiver
- Alarm and GSM text output
- 24 hour built-in standby battery
- 247K readings expandable to 2M readings
- Dual RS232 serial ports
- Transmitter battery alarm
- Display and keypad for "online" metering
- Extensive communications options
Moxa
Ethernet/internet adaptor
The kit consists of the following:
- Moxa Nport 5110
- AC power supply
- Lead to connect to RX250
When installed, access to the Squirrel can be achieved via a virtual COM port connection, using an ethernet/internet connection.
GSM Modem kit (logger / receiver side)
The kit consists of the following:
- Wavecom Xtend modem
- Mounting tabs
- Logger to modem lead (type GSM-mdm-com2X)
- Antenna with 1.8m lead
- SMA connector
- User instructions
When installed, access to the Squirrel can be achieved via a GSM network.
Note: GSM connectivity is not available with Darca Lite software.
A SIM card from the Network Service Provider is required.
The kit is necessary for text messaging functionality.
GSM Modem kit (PC side)
The kit consists of the following:
- Wavecom Xtend modem
- Antenna
- Modem to PC serial lead (type LC-PC/MDM)
- AC to 12V DC power supply (type MPGSMextend)
- User instructions
RS232 to RS485 interface converter
This unit converts the standard RC250 or Squirrel RS232 interface to a RS485 interface; thereby allowing equipment with the RS485 interface to communicate with the receiver/logger.
- Allows much longer cable lengths than RS232 - RC250/Squirrel can be further away from the PC or other connected equipment
- All RC250 units (after serial number T-25194) are compatible with this device
If you require a new logger to work with this interface, please specify at the time of ordering. Existing loggers may need a firmware update to work with the RS485 interface - please contact Eltek for advice.
Squirrels using this interface must be mains powered.
- Number of channels: Up to 250
- Number of transmitters: Up to 125
- Ambient temperature: -10 to +55°C
- Humidity: Up to 95% (non condensing)
- Power supply: 12V DC at 500mA powered using type MP12U, (input 100-250V AC)
- Built-in batteries: 6 x AA Ni Mh battery
- Backup battery life: Typically 24 hours
- Memory: 247,000 readings expandable to 2,000,000
- Clock accuracy: 1 second/day at 20°C
- Dimensions: D 60mm x W 180mm x H 120mm
- Weight: 1Kg inc. batteries
- Case material: Scratch resistant Nextel coated ABS
- PC/modem interface: RS232C up to 38.4K Baud
- Receiver: Crystal controlled
- Sensitivity: UHF: -117dBm
- Antenna connector: SMA 50 ohm female
- Antenna: Quarter wave standard, lightweight dipole optional
- Communication options: USB, GSM and Ethernet
- Alarm: RX250AL: SMS + 1 contact closure, RX250ALD: SMS + 2 contact closures