Point Blue - WITS Protocol

Point Blue is an intrinsically safe, compact Logger/RTU device with integrated
battery and GSM/GPRS or 3G modem, combining the versatile logging and
telemetry functionality of the long-established Metasphere product range with
the convenience of easy installation and rapid deployment using GSM, GPRS or
3G networks.
Point Blue provides real time remote monitoring of up to 5 programmable sensors. It has software
programmable I/O functionality for hundreds of configurable combinations and includes support for
Analogue, Digital and Counter Inputs. The Point Blue can also act as a Modbus master communicating
over RS232 and RS485. In addition to the multiple configuration options the Point Blue offers local
monitoring of battery voltage, cellular signal strength and ambient temperature.
The RTU offers a plug and play solution that minimises the need for additional site visits, with remote
management functions including remote firmware upgrade enabling associated cost-savings. It can store
thousands of records in memory for later retrieval by SCADA systems.
The Point Blue is an ATEX/ IECEx compliant (to Zone 0), self-contained, low cost fit-and-forget unit for use
in harsh and hazardous environments in remote locations. Its design exploits mainstream technologies
which help to minimise costs whilst at the same time ensuring reliability and a long product life. The
latest developments in low power technology are employed, allowing the Point Blue to derive all the
power it needs (including sensor power, if required) from an internal lithium battery pack. This, together
with an integral GSM/GPRS or 3G modem, ensures a long service life with low infrastructure costs.
 Real time remote monitoring of up to 5 sensors
 Software Configurable I/O; supports AI, CI and DI
 Powers external current loop and active voltage sensors
 Built-in quad band GSM/GPRS or 3G modem with auto
switching internal and external antenna
 Lithium battery with an expected life of 5+ years
 IP68 enclosure is submersible to 4 meters for 4 days
 Connects to Medina or DNP3 Masters (e.g. ClearSCADA)
 Modbus master communicating over RS232 and RS485
 Remote firmware upgrade
 Remote configuration
 Integral immersion sensor
 Rich telemetry functionality including dynamic
trending/logging and intelligent alarm reporting.
 Flexible integrated installation bracket
 Automatic external power source detection
 Non IS variant available – Point Orange.
ATEX/ IECEx compliant IP68 rated GSM/GPRS or 3G
based, low powered Remote Telemetry Unit with
software configurable IO, integrated submersion
sensor and Modbus master support.
sensor collection storage processing interaction
Point Blue
Technical Specification
Analogue Inputs
Up to 4 channels
Type: Active Current, passive current, active voltage, passive voltage
Current range: 0-20mA
Voltage range: 0-2V
Input impedance: 10.2kΩ
Accuracy: ±0.5% (Max ±2%)
Absolute maximum ratings: ±5VDC
Resolution: 16-bits
Digital inputs
Up to 5 channels
Volt free
32-bit counter support up to 100Hz
Internal Lithium battery pack
Optional external battery pack
Sensor power supply (12V DC, current loop or voltage)
DNP3 (Level 3)
Modbus master (RS232, RS485 full and half duplex)
4GB flash memory
512kB static RAM
Internal Quad band GSM/GPRS modem
Tri-band 3G option
Auto switching internal and external antenna
Local monitoring
Ambient temperature sensor (± 1°C)
Integrated submersion sensor
Battery, loop, and external supply voltages
Automatic external power source detection and switching
Remote management
Remote firmware upgrade
Remote configuration
156mm × 110mm × 112mm (excluding mating cables)
0.6 Kg (fully assembled)
Atex/IECEx classification
Ex II 1G Ex ia IIB T4 Ga
IECEx BAS15.0027X
Metasphere provides robust asset monitoring of time critical remote operations for operators
to gain competitive advantage and meet regulatory compliance.
Metasphere Ltd Millfield Dorking Road
Tadworth KT20 7TD
t: +44 (0)1737 846 100
Metasphere Australia Pty Ltd PO Box 4548
North Rocks NSW 2151
t: +61 1300 785681