SQ2040-4F16 Portable High Speed Universal Input Data Logger
16/32 Channel Data Logger with 100Hz Sampling
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Product Overview
Useful Links
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High performance data loggers for demanding applications
Up to 100 readings per second on 4 channels
Four 24-bit A to D converters
In built Ethernet connectivity
4 pulse rate / counter inputs (2 at up to 64kHz, 2 at up to 100Hz)
- Fully configurable via the integrated keypad
- 128*97 dot graphical LCD display
- Compatible with B, C, D type thermocouples
- Up to 32 universal inputs
- High precision (0.05%)
- Advanced data management, to MMC/SD or PC
- Flexible communications (USB, Ethernet, RS232)
- High speed option (100Hz on 4 channels)
- Various Remote connection options e.g. via Ethernet or dial up modem
The Squirrel 2040 series provide high performance universal data loggers packed with the same powerful features as the Squirrel 2020 series with additional high speed logging on up to four channels and twice as many universal input channels. This provides great flexibility to handle a wide range of complex and demanding multi-channel applications such as high-speed vehicle testing or engine monitoring.
The Squirrel 2040 series are easy, fast and convenient to use - either as portable, stand-alone loggers or as PC-linked data acquisition systems in industrial testing and research, scientific and environmental research and quality assurance applications.
Twin processors, multiple 24-bit A to D converters, up to 32 universal channels, removable Multi Media (MMC) or SD card memory and a choice of communications methods ensure that the Squirrel 2040 series provides state-of-the-art data logging and communication capability for sophisticated applications needs.
Key features
- Standalone data logger or link to a PC
- Compact and portable
- 16 to 32 universal analogue plus 8 digital inputs
- 16 derived/calculated channels
- 4 alarm outputs
- Configured via integral interface or via PC
- 0.05% basic accuracy
- Up to 14million readings
- In built Ethernet networking capability
- USB and RS232 connectivity
Analogue inputs supported
- Thermistors
- Thermocouples
- Pt100/Pt1000 (maximum of eight 3- or 4-wire Pt100/1000 sensors - model 4F16 only)
- Voltage
- Current
- Resistance
1. 16 to 32 universal analogue inputs for recording temperature, current, voltage and resistance
2. Easy to use, removable connector system
3. Power output for sensor excitation / external devices
4. 2 high voltage channels (20, 40 or 60V) for automotive applications
5. USB, Ethernet and RS232 connectivity for quick and easy PC and remote communication and networking
6. Range of trigger functions via 8 digital inputs; 4 pulse rate / counter inputs
- 4 alarm outputs for triggering external devices
1. To operate the logger simply use the four integral push buttons and display, or use the convenient SquirrelView set-up, download and export software – free with every Squirrel logger
2. Large, clear 128*64 dot graphical LCD screen for easy access to readings and set-up information
3. Robust, ergonomically designed case with easy access to all user facilities
- Store up to 1.8 million readings in the Squirrel’s on board memory
- Store up to 6 logger configurations. Load from a removable MMC / SD card for speed and convenience,or download data files to the card
SquirrelView & SquirrelView Plus Sofware
SquirrelView is a universal software package that is included with every new Grant Squirrel data logger.
Its intuitive, user friendly, spreadsheet style interface allows quick set-up of the data logger for any application, speedy download of data and direct export to Excel™. SquirrelView Plus gives additional benefits such as graphical data analyses and advanced reporting options.
Minimum PC specification: – Windows® XP, Vista or Windows 7; Pentium II 266MHz; 60Mb hard disk space and 1 CD drive, colour SVGA screen (1024x768 recommended), at least one RS232 or one USB port, mouse.
Key feature
- Intuitive, user friendly spreadsheet style setup allows quick logger configuration in any application
- Flexible data presentation allows you to quickly display and analyse real time or historical data as a line graph, bar chart or analogue gauge
- Graphical alarm and event identification lets you easily identify occurrences around specific analogue or digital events e.g. pump coming on
- Quick Graph function lets you quickly and easily view large data files
- Export data into Excel™ in real time, or as a CSV file for customisable data analysis
- Easily view and control the logger status from one single screen
- Use the simple communication wizard for hassle free working with modems, Ethernet, GSM, etc.
- Download data by date, time or events, saving time when working via modem or looking for specific data
- Save settings on the PC for efficient re-use
- Protect your data and set-up configurations with the security function
SquirrelView Plus-Analysis
SquirrelView Plus lets you quickly and easily analyse the data from your Squirrel data logger in a familiar Explorer™ style interface. Data can be displayed with 2 different auto scaling Y-axes. This is particularly useful when displaying widely varying data from different sensors on one graph. You can also zoom in on areas of interest, use a cursor to pick out exact values, times and dates, get a statistical summary of your data, set high and low alarm thresholds and, using the calculation function, you can create new virtual channels from existing channels.
SquirrelView Plus also incorporates a report generation facility, which allows you to create custom report templates consisting of a title page with descriptive text, headers and footers, graphs, tabular list of data, statistics and data logger setup information. Templates can be setup with any of these combinations and saves time when preparing similar presentations of data.
SquirrelView & SquirrelView Plus |
SquirrelView Plus Version only |
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| Analogue input channel options |
Analogue to digital converters: 4 Differential: 16 Single Ended*: 32 3 or 4 wire: 8 |
| Additional channels * Please refer to our Technical Note for the configuration of these inputs |
Pulse: (2 x fast-64kHz)& (2 x slow - 100Hz) Event/digital: 8 state inputs or 1 x 8 bit binary Single Ended*: 2 3 or 4 wire: 2 temperature Logging speed: 1 sec to 1 day in 1 sec Increments: 2.5.10.20 or 100Hz (20Hz or 100Hz only on 2 channels) |
| Logging speed | 100 readings / sec on 4 channel |
| Communication | Standard:RS232 ( Auto bauding to 115200 baud) USB 1.1 & 2.0 compatible Ethernet: 10/100 base TCP/IP. Requires external power supply. |
| Analogue inputs | Accuracy: (at 25°C) voltage and resistance (± 0.05% readings + 0.025% range) Common mode rejection: 100dB Linearity: 0.015% Input impedance: > 1MO Series mode line rejection: 50/60Hz 100dB |
| Analogue - digital conversion | Type: Sigma - Delta Resolution: 24bit Sampling rate: up to 10, 20* or 100* readings per sec. per ADC. No 100Hz on 1F8 (* with mains rejection off) |
| Thermistor Ranges | Y & U-type: - 50 to 150°C Pt100/ Pt1000: - 200 to - 850°C (2 wire only on 1F8) Customer specific thermistor range |
| Thermocouple Ranges; Differential and Single Ended | K-type: - 200 to 1372°C R-type: - 50 to 1768°C B-type: 250 to 1820°C T-type: - 200 to 400°C S-type: - 50 to 1768°C C-type: 0 to 2320°C N-type: - 200 to 1300°C J-type: -200 to 1200°C D-type: 0 to 2320°C |
| Working environment | - 30 to 65°C, RH up to 95% (non-condensing |
| Voltage Ranges; Differential and Single Ended | - 0.075 to 0.075V, - 0.15 to 0.15V, - 0.3 to 0.3V, - 0.6 to 0.6V, 0.6 to 1.2V, 0.6 to 2.4V, - 3.0 to 3.0V, - 6.0 to 6.0 V, -6.0 to 12.0V, - 6.0 to 25.0V |
| High voltage input range | 4.0 to 20.0V, 4.0 to 40.0V, 4.0 to 60.0 (max 2 may be selected) |
| Current Ranges, Differential (Requires external 10O shunt) | -30.0 to 30.0mA, 4 to 20mA |
| Resistance Ranges, all 2 wire | 0.0 to 1250O, 0.0 to 5000O, 0.0 to 20000O, 0.0 to 300000O |
| Resistance range 3 and 4 wire (2F8) | 0.0 to 500O, 0.0 to 4000O |
| Digital/Alarm Output | 4 open drain FET (18V 0.1A) |
| Memory | Internal: up tp 128M(up to 14 million readings) External: Up to 1Gb - removable MMC/ SD ( for transferring internal memory and storing setups only |
| Internal memory modes | Stop when full or overwrite |
| Calculated channel | Up to 16 virtual channels derived from physical input channels |
| Resolution | Up to 6 significant digits |
| Display/Keypad | 128*64 dot graphical display,4 button keypad |
| Power supply | Internal: 6 x AA alkaline batteries External: 10-18VDC. Reverse and polarity and over-voltage protected |
| Power consumption@ 9V | Sleep mode: 600µA Logging: 40 - 80 mA |
| Power output for external device | Regulated 5VDC at 50mA or logger supply voltage at 100m |
| Time and Date | In-built clock in 3 formats |
| Programming / logger setup | Squirrelview or Squirrelview Plus Software |
| Dimensions (w x d x h), weight | 235 mm x 175 mm x 95 mm, 1.2 kg, enclosure material ABS |
Please note: SQ2020 is supplied with software, manual, USB cable, wall bracket, batteries and 4 current shunt resistors.
Application Notes
Below features our collection of application notes and case studies involving this product.
Performance Validation of Test Cars
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