Grant SQ2020 Wi-Fi (Squirrel 2020 Wi-Fi)

Portable Data Logger

SQ2020 WIFI data logger
  • Integral Wi-Fi Ethernet networking
  • High precision (0.05%)
  • Advanced data management to MMC/SD card or PC
  • Flexible communications (USB, Ethernet, RS232)
  • High speed 100Hz on two channels
  • Various Remote connection options e.g. via Ethernet or dial up modem
  • Up to 1.8 million readings
  • Removable MMC / SD card
  • Built-in 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
Key Features:
  • Standalone data logger or link to a PC
  • 8 true differential or 16 single ended universal analogue inputs for voltage, current or resistance measurements plus 2 high voltage, 4 pulse and 8 digital event/state inputs
  • Analogue inputs can be used with thermistors, thermocouples, 2, 3 or 4 wire RTD temperature sensors and 4-20mA signals
  • Logging rates of up to 100Hz on up to two channels
  • Large non-volatile internal memory storage for up to 14 million readings
  • Download of internal data to removable MMC/SD (Multi Media Card /
  • Secure Digital) memory
  • Sensor power and FET outputs for use with external devices
  • Easy to read LCD and simple 4 button user interface
  • Up to 16 calculated / derived channels may be created using mathematical functions
  • Analog Inputs Supported
  • Thermistors
  • Thermocouples
  • Pt100/Pt1000 (maximum of four 3 or 4-wire Pt100/1000 sensors)
  • Voltage
  • Current
  • Resistance
Product Description:
The Squirrel SQ2020 Wi-Fi hand held data logger combines high performance and universal inputs with the simplicity of Wi-Fi networking in a compact and easy-to-use instrument.Using high accuracy, 24-bit analogue to digital converters, removable memory and Wi-Fi wireless Ethernet networking, the SQ2020 Wi-Fi is the ideal data logger for industrial, scientific research and quality assurance applications. Together with our comprehensive suite of software, SquirrelView, the SQ2020 provides standalone data acquisition, simple Wi-Fi networking, real-time metering and data analysis straight out-of-the-box.
Concurrent sampling:
The SQ2020 Wi-Fi uses multiple analogue to digital converters that enable true concurrent sampling and logging. This allows the user to configure a channel to log at a rate of 100Hz whilst retaining different sample speeds on other channels. This makes the SQ2020 Wi-Fi ideal for measuring dynamic parameters that change at different rates such as temperature and pressure.
Multiple configurations stored in the logger:
Up to six logger configurations (channel type, names, logging speeds, triggers etc), together with the current configuration, can be held in the logger’s internal memory. Additional configuration settings can also be loaded from the external MMC/SD memory card. This allows the operator to quickly and easily switch between logger configurations without the need for a PC.
Wireless Ethernet, USB and RS232 serial ports are built-in. This allows simple wireless connection to a PC based TCP/IP network, or to a modem for remote data downloading. This flexibility enables global data access and retrieval as well as complete system integration of the SQ2040 Wi-Fi series into complex and critical applications.
Comprehensive software configuration via SquirrelView:
The SquirrelView software (supplied with the SQ2040 Wi-Fi series) allows logger configuration, data download and data export whilst giving the user full control over the SQ2040 Wi-Fi. The optional SquirrelView Plus gives the user access to many advanced data analysis and data archiving/transfer features.
General Information:
|||||||| Click here for General Specifications
SQ2010 Handheld Data Logger
Input Channels
No. of channels 8 true differential or 16 single ended universal analog inputs for voltage, current or resistance
3 or 4 wire 4 channels SQ2020-2F8 only
Additional Channels
Pulse (2 x fast – 64kHz) & (2 x slow – 100Hz)
Event / digital 8 state inputs or 1 x 8 bit binary
High voltage 2
Internal channels 1 temperature
Standard ranges for temperature channels:
Each channel can be individually set to any of the ranges listed below. Pt100 to IEC751 and JIS1604 and Pt1000 to IEC751.
Y & U: Thermistor -50 to 150°C ( -58 to 302°F )
Pt100/Pt1000* -200 – 850 °C ( -328 to 1562 °F )
*2 wire only on 1F8
K: Thermocouple -200 to 1372 °C ( -328 to 2501 °F )
T: Thermocouple -200 to 400 °C ( -328 to 752 °F )
J: Thermocouple -200 to 1200 °C ( -328 to 2192 °F )
N: Thermocouple -200 to 1300 °C ( -328 to 2372 °F )
R & S: Thermocouple -50 to 1768 °C ( -58 to 3214 °F )
Voltage Ranges
-0.075 to 0.075V -0.15 to 015V -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 6.0V - 6.0 to 12.0V -6.0 to 25.0V 4.0 to 20.0V 4.0 to 40.0V 4.0 to 60.0V
Current range
(External 10Ω shunt) -30.0 to 30.0mA 4 to 20mA
Resistance Ranges
Resistance range 2 wire 0.0 to 1250.0 Ω 0.0 to 5000.0 Ω 0.0 to 20000.0 Ω 0.0 to 300000.0 Ω
Resistance range 3 – 4 wire (2F8 version) 0.0 to 500.0 Ω 0.0 to 4000.0 Ω
Analog inputs: Accuracy & Resolution
A/D Resolution 24 bit
Sampling rate: up to 10, 20* or 100* readings per second per ADC. No 100Hz on 1F8
Accuracy: ± (0.05% readings + 0.025% range)
Resolution: Up to 6 significant digits
Common mode rejection: 100dB
Input impedance: > 1M Ω
Linearity: 0.015%
Series mode line rejection: 50/60Hz 100dB
*with mains rejection off
Alarm outputs 4 x open drain FET (18V 0.1A)
Power output for external device Regulated 5 VDC at 50mA or logger supply voltage at 100mA
Time and date built-in clock, 3 formats
Calculated channels Up to 16 virtual channels derived from physical input channels
Programming/logger setup SquirrelView or SquirrelView Plus software
Scaling data Displays readings in preferred engineering units
Memory Internal 16Mb (Up to 1,800,000 readings)
Memory external Up to 1Gb – removable MMC/SD (For transferring internal memory and storing setups only)
Internal memory modes Stop when full or overwrite
Communications / Setup
Networking Wireless Ethernet (Wi-Fi):802.11b, 2.4GHz, 1 to 14 channels Security: Open, WEP (64 or 128bit encryption), WPA or WPA2 / 802.11i
External Modem Support GSM modem for remote data downloading
Network Infrastructure only with specified SSID, or any network with no SSID (external mains power required for Wi-Fi connection)RS232: (Auto-bauding to 115 K baud) USB: 1.1 and 2.0 compatible
LCD Display: 2 line x 20 character LCD display Battery state and external power indicator Keypad lock
Navigate to: Arm/disarm/pause/continue Meter any channel or alarm Select from up to 6 x pre-stored setups Status/diagnostics/memory/time and date Download to MMC/SD
Internal Battery 6 x AA Alkaline batteries
External Power 10-18VDC Reverse polarity and over-voltage protected
Power Consumption Sleep mode: 600μA Logging: 40-80mA
Operating temp -30°C to +65°C
Humidity: 90% at 40°C non-condensing
Dimensions W235 x D175 x H55mm
Weight: Approx 1.2kgs
Enclosure material: ABS plastic
|||||||| Click here for Channel Inputs | Connectivity | Navigation
SQ2020 Channel inputs | Connectivity | Navigation
  • Create complex schedules of logging rates, triggers and alarm outputs
  • Scale and view readings in real time on the integral display or on a PC running SquirrelView or Excel
  • Display readings in preferred engineering units e.g. Hz, Bar, Pascals, Nm etc.
  • Select logging rates up to 100 readings per second on up to 2 channels (20Hz maximum on Squirrel model 2020-1F8)
  • Derive up to 16 calculated (virtual) channels from real input channels using mathematical functions
  • Concurrently sample channels at different sample speeds
pdf_pic 1F8 Logging Speeds | 2F8 Logging Speeds
Bottom View
Sq2020 WIFI
General Overview
  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)
Squirrel 2020 Façade
General Overview
  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. Convenient 2 line x 20 character backlit LCD 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
|||||||| Click here for Models
high speed model
  • Up to 100 readings per second on 2 channels
  • Built-in Ethernet connectivity
  • Up to four 3 or 4 wire Pt 100/1000 sensor inputs Vac)
|||||||| Click here for Software Options
SQ2020 Paint Software
Paint View
PaintView Software pdf_pic PaintView Data Sheet
Minimum PC specification
Windows® 2000, XP; Pentium II 266MHz, 60Gb HDD, colour SVGA screen, at least one RS232 or one USB port.
General Overview
PaintView is an easy-to-use software package designed for exclusive use in the paint and finishing industry and is included free with every OQ610 temperature logger. It enables easy setup of the logger and automatic download of data from the logger into a meaningful measure of paint cure. For advanced paint cure calculations, it can also provide rapid interpretation of results. PaintView also gives the additional benefits of graphically analyzing historical and on-line data, along with advanced reporting. PaintView can be easily set-up in the minimum amount of time and with the least amount of hassle. With regular usage it can pin-point any uneven temperatures within the stove process. This will improve the quality of your process, so that fewer faults occur, and helps to avoid costly re-work in the future.
SQ2010 SquirrelView Software
General Software – Free with every Data Logger
PaintView Software pdf_pic SquirrelView Data Sheet
pdf_pic How to use Data Sheet
Minimum PC specification
Windows® 2000, XP; Pentium II 266MHz, 60Gb HDD, colour SVGA screen, at least one RS232 or one USB port.
General Overview
SquirrelView is a universal software package that is supplied free with every new Grant Squirrel data logger. Its intuitive, user friendly, spreadsheet style interface allows quick set-up of the logger for any application, speedy download of data and direct export to Excel. Key features of SquirrelView
  • Export data into Excel or as a CSV file for customizable 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).
SQ2010 SquirrelView Plus Software
with Graphical Analysis
PaintView Software pdf_pic SquirrelView Data Sheet
pdf_pic How to use Data Sheet
Minimum PC specification
Windows® 2000, XP; Pentium II 266MHz, 60Gb HDD, colour SVGA screen, at least one RS232 or one USB port.
General Overview
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.
  • Flexible data presentation allows you to quickly display and analyze real time or historical data as a line graph, bar chart or analog gauge
  • Graphical alarm and event identification lets you easily identify occurrences around specific analog 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
  • Customizable report facility: print out graphs, readings, etc.
  • Tolerance curve
  • Calculated channels
  • Product cure calculation
  • Display oven profiles and oven zones
pdf_pic  Downloads: Specifications Manual
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