SC250 Receiver / Logger

The SC250 is the hub of the secure logging system, for use with Eltek's Darca Secure software. It is not necessary to have a permanently connected PC and the built-in battery means data logging is not interrupted if there is a temporary AC supply failure. Alarms are included as standard (SMS and local) and include grouping so that alarms for individual departments can be configured.

Features

  • Data Logger with integral receiver
  • Alarms are logged
  • Data is checksummed to prevent corrupted data from being downloaded
  • 247K readings expandable to 2M readings
  • Alarm raised if external power removed (e.g. mains failure)
  • Grouping for alarm text messages
  • Extensive communications options

SC250

Connectivity

GSMSQ

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.
A SIM card from the Network Service Provider is required.
The kit is necessary for text messaging functionality.

GSMSQ

GSMSQ

GSMPC

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
GSMPC

GSMPC

MPGSMextend

MPGSMextend

Accessories

Antennae:

UHFflexi/SMA standard quarter wave whip

LW-ANT/SMA lightweight indoor or external dipole antenna

Yagi directional antenna

Specification

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, Ethernet, internet and GPRS
Alarm: SMS + 1 contact closure

Documentation

Product datasheet:

GenII Secure Data Logging System