Squirrel 2020 series, the new generation data logger from Grant Instruments, combines high performance, comprehensive features and universal inputs in a compact and portable instrument. Using multiple analog to digital convertors, convenient low cost and removable memory options positions the 2020 series as the ideal data logger for industrial, scientific research and quality assurance applications. The 2020 provides standalone data acquisition and metering that together with a suite of comprehensive software and functional good looks make the 2020 the "all in one box" first choice
Key Features
¡ñ24 universal analog inputs for voltage, current or resistance measurements plus 2 high voltage, 4 pulse and 8 digital event/state inputs
¡ñAnalog inputs can be used with thermistor, thermocouple and 2 wire RTD temperature sensors and 4-20mA instruments
¡ñUser selectable logging rates of up to 100Hz on a single channel
¡ñ16Mb of internal memory for approximately 1 to 2 million readings
¡ñDownload of internal data to removable MMC (Multi Media Card) memory
¡ñEasy to use removable connector
¡ñSensor power and relay outputs for use with external devices
¡ñComprehensive access to information using the 2 line, 40 character LCD and button panel
¡ñReadings can be scaled and viewed in realtime on a PC or on the local LCD
¡ñCalculated channels derived from real channels using basic math¡¯s functions
¡ñUSB and RS232 communication
¡ñNon volatile flash memory - data retention is virtually indefinit
¡ñMultiple 24 bit analog to digital convertors (ADC) for precision measurement
¡ñPortable, battery operated or mains
Communications:
USB and RS232 serial ports are standard with external options for Ethernet, Landline and GSM
communications enabling global access and system integration of the 2020.
Multiple setups stored in internal and external memory:
A setup is the instruction that tells the 2020 how it will operate. Up to six preconfigured setups, together with the setup in current use, are held in the internal memory. In addition further setups can be loaded from the external memory. Switching between setups is extremely easy and fast using the convenient LCD display and button panel, avoiding the need to connect to a PC, thereby reducing time and effort to switch between different data logging applications.
Comprehensive configuration:
SquirrelView configuration, download and data export software permits full control and use of the 2020 data logger. The convenient LCD display and button panel enable metering and logging in true portable operation.
Concurrent sampling:
2020 multiple ADCs enables true concurrent sampling and logging. For instance one channel can sample at a rate of 100Hz whilst retaining different sample speeds on other channels, making the 2020 ideal for measuring parameters that change at different rates such as temperature and pressure.
System Specification
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Input channels: |
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ANALOG INPUT CHANNEL OPTIONS |
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2020 |
ADCS |
DIFFERENTIAL |
SINGLE ENDED |
3 OR 4 |
PULSE |
EVENT/DIGITAL |
HIGH VOLTAGE |
INTERNAL CHANNELS |
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1F8 |
x 1 |
8 |
16 |
0 |
( 2 x fast - 64kHz) & (2 x slow -100Hz) |
8 State inputs or 1 x 8 bit Binary |
2 |
1 Temperature |
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2F8 |
x 2 |
8 |
16 |
4 |
( 2 x fast - 64kHz) & (2 x slow -100Hz) |
8 State inputs or 1 x 8 bit Binary |
2 |
1 Temperature |
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Standard ranges for d.c. voltage/current and resistance channels:
Each voltage/current channel can be any of the voltage or current ranges below. Mixed differential and single ended configurations are permitted.
Note: current ranges use differential input channels. |
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VOLTAGE RANGE |
VOLTAGE RANGE |
HIGH VOLTAGE RANGE |
CURRENT RANGE
(EXT.10W SHUNT) |
RESISTANCE RANGE
2 WIRE |
RESISTANCE RANGE
3 AND 4 WIRE (2F8 VERSION) |
-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 6.0V
-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 |
-30.0 to 30.0mA
4 to 20mA |
0.0 to 1250.0 W
0.0 to 5000.0 W
0.0 to 20000.0W
0.0 to 300000.0 W |
0.0 to 500.0 W
0.0 to 4000.0 W |
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ANALOG INPUTS
Accuracy: (at 25¡ãC) voltage and resistance
¡À (0.05% readings + 0.025% range) Common mode rejection: 100dB Input impedance: > 1MW Linearity: 0.015%
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 second per ADC. No 100Hz on 1F8.
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
In built clock in 3 formats
SCALING DATA
Displays readings in preferred engineering units.
MEMORY
Internal: 16Mb (Up to 1,800,000 readings)
External: Up to 64Mb - removable MMC
(For transferring internal memory and storing setups only)
* With mains rejection off |
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CALCULATED CHANNELS
Up to 16 virtual channels derived from physical input channels
RESOLUTION
Up to 6 significant digits
PROGRAMMING/LOGGER SETUP
SquirrelView or SquirrelView Plus software
COMMUNICATION
Standard: RS232 (Auto bauding to 115k baud) USB 1.1 and 2.0 compatible
External options: Ethernet, GSM and
PSTN Modems
POWER SUPPLY
Internal: 6 x AA Alkaline batteries
External: 10-18VDC
Reverse polarity and over-voltage protected
POWER CONSUMPTION @ 9V Sleep mode: 600µA
Logging: 40-80mA
DIMENSIONS AND WEIGHT Dimensions: W235 x D175 x H55mm Weight: Approx 1.2kgs
Enclosure material: ABS
MEMORY MODES (internal only)
Stop when full or overwrite |
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DISPLAY AND KEYPAD
2 line x 40 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
OPERATING ENVIRONMENT
-30¡ãC to +65¡ãC
Humidity: 90% at 40¡ãC non condensing
ACCESSORIES
MPU 12V: Universal (97-263V AC)
power supply
LC76: DC lead
SQ20RB12-6: External rechargeable battery
(12V, 6Ah)
SB102: 25 way digital I/O connector
CS202: Current shunt kit (8 x 10W 0.125W) PEL4: Rugged weather proof enclosure CAL2020: Test and Calibration certificates SQ20A802: External GSM communications kit SQ20A801: External Ethernet adaptor kit MMC64: Multi Media Card
(Please see price list for additional accessories) Please note: SQ2020 is supplied with software, manual, USB cable, wall bracket and batterie |
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Software
SquirrelView - supplied with 2020
2020 logger setup, download and data export to Excel or CSV application for Windows 98, 2000 and XP. Features include metering and support for Modem, Ethernet and GSM communications.
SquirrelView Plus
As SquirrelView with additional features including on-line or historical graphing of data with manual and automatic scaling of charts. Readings can be listed in tabular format with timestamps and statistics. |
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Warranty: Equipment manufactured by Grant Instruments is warranted against faulty materials or workmanship for three years. For repairs
carried out under warranty, no charge is made for labour, materials or return carriage.
CE mark: The Grant 2020 data acquisition system bears a CE mark and meets relevant European directives.
Quality Statement: Grant Instruments operates a Quality Management System complying with IS09001:2000.
It is Grant¡¯s policy to supply customers with products which are fit for their intended purpose, safe in use, perform reliably to published specification and are backed by a fast and efficient customer support service.
Manufactured and designed in Cambridge, England. |
