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GL500-7-2 Global Logger

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Global Water’s rugged GL500-7-2 Global Logger offers state-of-the-art technology for continuous datalogging, storage, and retrieval. The logger features 7 analogue channels and 2 digital channels for data recording. It also offers USB and serial communication ports for easy communication with a Windows™-based PC or PDA.

Multichannel Datalogger for Recording a Variety of Sensor Signals

Powerful Recording
The GL500-7-2 can record over 40,000 readings and has four unique recording options: fast (10 samples per second), programmable interval (1 second to multiple years), logarithmic, and exception. The datalogger also has a sample on demand input that triggers a recording of special events. Daily start and stop alarm times can be programmed to limit recording intervals.

• Includes both USB and serial communication ports
• Four sample modes: 10 times per second, timed, logarithmic, and exception
• Monitor up to 9 sensors at a time in addition to battery voltage
• Battery powered for remote locations
• User friendly Windows™ and Windows™ CE-based PDA software included
• Accepts any 4-20 mA input

Smart Software
The GL500-7-2 includes Windows™- based Global Logger II software, which makes accessing stored data and setting options easy. The software provides many useful features, such as real time readout, measurement interval and engineering unit selection, station ID setting, and sensor calibration. The Global Logger also includes Windows™ CE-based PDA software for simple data collection in the field. Downloaded data can easily be opened in any PC spreadsheet program for analysis and graphic presentation.


Memory: Non-volatile flash memory
Power: 4.2 VDC min to 24.0 VDC absolute max
Standby current: 70μA typical
Logging current: 5mA typical + sensor current
Analogue Sensor Inputs: 4-20 mA (0-5VDC as factory option)
Resolution: 12-bit, 4096 steps
Channels: 7 input channels + battery voltage monitor
Sensor warm-up time: Programmable 0-60 sec
Digital Inputs: Two independent pulse counters

Maximum input voltage: 24VDC
Maximum frequency: 100Hz
Minimum pulse width: 2mS
Maximum count: 65,535 (16-bit)
Sample Now: Input Sample-on-demand input, software enabled
Maximum input voltage: 24VDC
Minimum pulse width: 2mS
Sample Modes Fixed Interval: Programmable from 1 sec to >1 yr
High Speed: 10 samples per sec
Logarithmic Sample Rate: Approximation Exception: Log only on deviation from previous reading
Storage Capacity: 40,879 Recordings for all inputs plus time stamp
Data Overwrite: Select memory wrap or unwrap (unwrap will stop logging data once memory is full)

Compatible with Many Sensors
The Global Logger includes 7 channels that can accept any 4-20 mA sensor, including many of Global Water’s level, water quality

Ordering Information:

Global Logger
GL500-7-2 Global Logger (with 7 analogue and 2 pulse channels) 1
1) Includes 7 analogue channels, 2 pulse channels, USB and serial communication ports, Windows™ PC and PDA software, and cables. An external 12 VDC power source is required.

GL450-7-1 Datalogger Enclosure Upgrade 2
GL500-DISP Single-Channel Display for Enclosure 3
GL500-Mod Modem Package 4
SP101 Solar Panel (2 watt),
SP102 Solar Panel (5 watt),
BC100 Smart Charger,
PDAWL16 Deluxe PDA Package
2) Includes weather-resistant enclosure with 8 ports, rechargeable 12 VDC battery (that fits inside enclosure with datalogger, and a battery charger.
3) Allows user to view one data channel in addition to datalogging. Logger will record data while data is displaying.
4) Includes standard telephone modem and modem adapter cable.
5) Handheld PDA package with a custom serial cable for the Global Logger.