Description
Powerful data loggers for standard and high speed applications
Up to 20 Max readings per second on 1 channel
- Fully configurable via the integrated keypad
- Graphical LCD display
- Compatible with B, C, D type thermocouples
- Up to 16 universal inputs
- High precision (0.05%)
- Advanced data management to MMC/SD card or PC
- Flexible communications (USB, Ethernet, RS232)
- High speed option (100Hz)
- Various Remote connection options e.g. via Ethernet or dial up modem
The Grant Squirrel 2020 series offers high performance universal data loggers packed with powerful features to provide great flexibility to handle a wide range of routine and demanding applications.
Hand-held and lightweight, the Squirrel 2020 models are easy, fast and convenient to use – either as stand-alone loggers or as PC-linked data acquisition systems in industrial and scientific research and quality assurance applications.
Twin processors, multiple 24-bit analog-to-digital converters, up to 16 universal channels and a choice of communications methods ensure that the Squirrel 2020 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
- 8 to 16 universal analog plus 8 digital inputs
- Up to 16 derived /calculated channels
- 4 alarm outputs
- 4 pulse rate / counter inputs (2 at up to 64kHz, 2 at up to 100Hz)
- Configured via integral interface or via PC
- 0.05% basic accuracy
- Up to 14 million readings
- Removable MMC / SD card
- In-built Ethernet networking capability (SQ2020-2F8 only)
- USB and RS232 connectivity
Analog inputs supported
- Thermistors
- Thermocouples
- Pt100/Pt1000 (maximum of four 3 or 4-wire Pt100/1000 sensors)
- Voltage
- Current
- Resistance
Specifications
| Analog input channel options |
Analog to digital converters: 1
Differential: 8
Single Ended*: 16
3 or 4 wire: 0 |
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: 1 temperature |
| Logging speed |
20 readings / sec on 1 channel |
| Communication |
Standard:RS232 ( Auto bauding to 115200 baud)
USB 1.1 & 2.0 compatible
External options: GSM, Wifi and PSTN Modems |
| Analog 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 |
| Analog – 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 55 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.
Software
SquirrelView Software
Key features of SquirrelView
- Export data into Excel 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
For full analysis and reporting facilities SquirrelView Plus is available as an add-on option (a free 30-day trial is included with the SquirrelView software).
Minimum PC specification
Windows® 2000, XP; Pentium II 266MHz, 60Gb HDD, colour SVGA screen, at least one RS232 or one USB port.
SquirrelView Plus Software
SquirrelView Plus has all the features of SquirrelView with the additional benefits of allowing graphical analysis of historical and on-line data, whilst providing advanced reporting options.
SquirrelView Plus allows quick and easily analysis of the Squirrel data in a familiar Explorer navigation-style interface.
Data can be displayed with two different auto scaling Y-axes ─ essential for displaying widely varying data from different sensors on one graph. Particular data of interest can be zoomed into whilst an on-screen cursor can pick out exact values. Data can be shown in a statistical summary with set high and low alarm thresholds. The powerful calculation function allows the creation of “virtual” new channels from existing channels e.g. value from channel 1 added to the average of 10 readings from channel 2 etc.
SquirrelView Plus also incorporates a flexible report generation facility which allows the creation of custom report consisting of a title page with descriptive text, headers and footers, graphs, tabular lists of data, statistics and Squirrel logger set-up information. These can be saved as templates with any of these combinations saving time when preparing similar presentations of data.
Key features
- 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. a pump switching on
- Quick Graph function lets you quickly and easily view large data files
- Wizards for easy set-up of communications and data export
- Ability to send real time metered data from the Squirrel directly into Excel
- Downloader for automating data download using MS Scheduler® (Squirrel 2010, 2020 and 2040 only).
- Fully configurable data views
- Flexible zoom feature including X and Y axes
- Customisable report facility: print out graphs, readings, etc.
- Tolerance curve
- Calculated channels
- Product cure calculation
- Display oven profiles and oven zones
Features
1. 8 to 16 universal analog 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 (up to 60V) for automotive applications
5. USB, Ethernet and RS232 connectivity for quick and easy PC and remote communication and networking
6. Power supply – internal alkaline batteries or external DC power supply 7. Up to 8 digital and 4 pulse rate / counter inputs. Can be logged or used as triggers
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 onboard 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
