Other related pages:

• Con TROLL Pro Monitor

BaroTROLL - Barometric Data Logger

Applications:

• Barometric pressure monitoring
• Temperature monitoring
• Atmospheric research

The BaroTROLL is a low-cost, self-contained logger that is used to measure barometric pressure. It contains high precision barometric and temperature sensors, a data logger, and internal power in a 18.3mm (0.72 in) diameter housing. There is no need to change batteries with our new super low-power system that guarantees long-term operation. Alternatively, the unit can be powered with external power. System integration is a snap with built-in RS-485/232 Modbus, SDI-12, and 4-20mA communications.

The BaroTROLL is typically used in conjunction with one or more non-vented Level TROLLs to compensate for changes in the water level due to barometric fluctuations. Readings from the BaroTROLL can be automatically subtracted from data from Level TROLLs. Due to its small size, it can be installed at the surface or inside the well casing - even in 25mm (1 in) wells! Since it is built entirely from rugged titanium that is welded to eliminate o-ring seals, you can have total confidence in tough environments.

Features & Benefits:

• Barometric pressure, temperature & data logging in a 18.3mm (0.72 in) OD -- fits in a 50mm (1 in) well !
• Ultra-rugged, all-titanium design -- Perfect for corrosive sites
• TIG-welded seals -- Prevents flooding of instrument.
• Ultra-low power system guarantees 5 years or 2-million data points -- Forget changing batteries or running out of power.
• Uses external battery or line power -- no worries about running out of power.
• Sealed Twist-Lock hanger -- 100% reliability
• Easiest ever Win-Situ software -- get the data you need fast! Large, sizable display that's easy to see from a distance.
• Super accurate sensors -- record minuet changes in barometric pressure and temperature.
• Data saved by sites not files -- collect and save information by site automatically. No need to transfer data later.
• Easy-to-read memory and battery gauges -- know exactly how much is left
• Modbus, SDI-12, and 4-20mA -- provides for easy connections to existing and online systems
• Specify start and stop times for logging -- collect the data you need up to the date you want and no more
• Friendly Wizards guide every step -- reduces complicated steps and the need for tedious manuals
• -20 to 80C temperature range -- useful for research and applications with higher temperatures
• 100,000 data points of memory (1 MB) -- reduces the interval between data collection
• CE and FCC approved -- prevents susceptibility to outside emission interference and transient electrical surges
• Ability to "undelete" files from the unit -- no worries of accidentally deleting your data.
• And more!

General:
Operating temperature range	-20 to 80C
Dimensions	18.3 mm (0.72 in) OD, 21.6cm (8.5 in) long
Weight (includes backshell)	0.197 kg (0.43 lb)
Output options	Modbus (RS-485/232), SDI-12, 4-20mA
Housing material	Titanium
Nose cone material	Black Delrin (R)
Power:
Internal battery	3.6V Lithium
Typical life*	5 yrs or 2-million dp
External power	8-36VDC
	*Whichever comes first. See battery guide for details.
Logging
Memory / dp**	1 MB / 100,000+
Logging Rate	User selectable from 1 min -- 49 days
Modbus	1/2 sec
SDI-12	1/2 sec
Measurement Types	Linear
	**dp = data points = single test, single parameter
Barometric Sensor	Silicon strain gauge
Type	Non-vented
Material	Titanium
Accuracy***, FS	+/-0.1% (-5 to 50C)
FS = Full Scale	+/-0.2% (-5 to 50C) +/-0.25% (-20 to -5 & 50 to 80C) *** Accuracy with 4-20mA output option: +/-0.25% typical
Resolution	0.005% FS or better
Range	Non-vented: 1.0 bar (15 psi)
Temperature Sensor
Material	Silicon
Accuracy	+/-0.1C
Resolution	0.01C or better
Range	-20 to 80C

Minimum Computer System Requirements: 400MHz Pentium(R) II, 128MB RAM, 100MB free disk space, Internet Explorer(R) 5.0 or higher, Windows(R) 2000 Professional SP2 or better, or Windows XP Professional SP1 or better

Request additional information | Request price quote