>> Measures Current, Voltage, Resistance plus High Voltage, Pulse and Digital Event/State Inputs with 8 Digital Inputs
>> Intergated Wi-Fi Ethernet Networking
>> 8 Differential or 16 Single Ended Channels
>> Analogue Inputs Supported: Thermistors, Thermocouples, RTD Sensors (2, 3 or 4 Wire), Voltage, Current and Resistance
>> Programmed Using LCD Display and 4 Integral Buttons or Software
>> 4 Alarm Outputs and 4 Pulse Rate/Counter Inputs (64kHz and 100Hz)
>> 0.05% Accuracy
>> Sampling Rate of 100/Second (2 Channels)
>> Stores up to 1.8 Million Readings on Internal Memory
>> Built-in Ethernet Networking Connectivity
>> Removeable SD Card and Built-in USB and RS-232 Ports
>> External Input Sensors (Sold Separately)
>> Includes USB Cable, 6 Alkaline Batteries, 4 Current Shunt Resistors, Wall Bracket, User Manual and SquirrelView Software for Setup and Data Download
Squirrel 2020 Wifi Specifications
Data Channels | Single-Ended: 16 Analog Channels Differential: 8 Analog Channels (Single-Ended or Differential Available, Not Both) Analog to Digital Converter: 2 3 or 4 Wire Pt100/1000: 4 Pulse: 4 (2 x 64kHz & 2 x 100Hz) Event (Digital): 8 State Inputs or 1 8-Bit Binary High Voltage: 2 Temperature: 1 (Internal) |
Analog Inputs | Accuracy (Voltage & Resis.): ±(0.05% + 0.025% Range) Common Mode Rejection: 100dB Input Impedance: > 1M Ω Linearity: 0.015% Series Mode Line Rejection: 50/60Hz 100dB |
Analog to Digital Conversion | Type: Sigma - Delta Resolution: 24 Bit Sampling Rate: up to 10, 20* or 100* Readings per Second * With Mains rejection Off. |
Alarm Outputs | 4 (Open Drain FET - 18.0 Volts - 0.1 Amps) |
Power Output | External Devices: Regulated 5 Volts DC at 50 mA or Logger Supply Voltage (100mA) |
Time and Date | Built-In Clock in 3 Formats |
Scaling Data | Displays Readings in Preferred Engineering Units |
Data Storage Capacity | Internal: 16MB Storing up to 14 Million Samples/Readings External: 1 GB Removable SD Card |
DC Voltage Ranges | -0.075 to 0.075 Volts -0.15 to 0.15 Volts -0.3 to 0.3 Volts -0.6 to 0.6 Volts -0.6 to 1.2 Volts -0.6 to 2.4 Volts -3.0 to 3.0 Volts -6.0 to 6.0 Volts -6.0 to 12.0 Volts -6.0 to 25.0 Volts 4.0 to 20.0 Volts* 4.0 to 40.0 Volts* 4.0 to 60.0 Volts* * High Voltage (Max of 2 Can be Selected) |
Current Range | Differential: 4 to 20mA, -30mA to 30.0mA (Requires External 10Ω Shunt) |
Thermocouple Range | J-Type: -200°C to 1200°C (-328°F to 2192°F) K-Type: -200°C to 1372°C (-328°F to 2501°F) N-Type: -200°C to 1300°C (-328°F to 2372°F) R-Type: -50°C to 1768°C (-58°F to 3214°F) S-Type: -50°C to 1768°C (-58°F to 3214°F) T-Type: -200°C to 400°C (-328°F to 752°F) (Differential and Single Ended) |
Resistance Range | 3-Wire and 4-Wire: 0 to 500Ω, 0 to 4,000Ω |
Thermistor Range | U & Y-Type: -50°C to 150°C (-58°F to 302°F) |
Pt100/1000 Range (3 or 4-Wire) |
-200°C to 850°C (-328°F to 1562°F) |
Internal Reference Temperature | -50°C to 150°C |
Pulse Count Range | 0 to 100Hz (2 Input) 0 to 64kHz (2 Input) 0 to 16,000,000 Count |
Digital State/Event Ranges | 8 State Inputs or 1 x 8 Bit Binary |
Digital/Alarm Outputs | 2 Open Drain FETs, 18 Volts, 0.1 Amp |
Calculated Channels | Up to 16 Virtual Channels Derived from Physical Input Channels |
Resolution | Up to 6 Significant Digits |
Communication | Standard: RS-232 (Auto Bauding to 115,200 Baud) USB: 1.1 and 2.0 Compatible Other: GSM, Wi-Fi and PSTN Modems (External Attachments) |
Wireless Communication | Wireless Ethernet (Wi-Fi): 802.11b, 2.4GHz, 1 to 14 Channels Security: Open, WEP (64 or 128bit Encryption), WPA or WPA2/802.11i Network: Infrastructure Only with Specified SSID, or any Network with no SSID Note: External Power Supply Required for Wi-Fi |
Power Supply | Internal: 6 AA Alkaline Batteries External: 10 to 18 Volts DC Power Supply NOTE: Reverse Polarity and Over-Voltage Protected |
Power Consumption | Sleep Mode: 600 µA Logging: 40 to 80 mA |
Display/Keypad | 2 Line x 20 Characters LCD Display |
Display Functions | Battery State and External Power Indicator Keypad Lock Arm/Disarm/Pause/Continue Meter Any Channel or Alarm Select up to 6 Pre-Stored Setups Status/Diagnostics/Memory/Time and Date Download to MicroSD Card |
Enclosure | ABS Material |
Operating Modes | >> Stop When Full >> Overwrite |
Operating Range | Temperature: -30°C to 65°C Humidity: 0 to 90% at 40°C non-condensing |
Standards Compliance | CE |
Weight | 1.2 kilograms |
Dimensions | 23.5 cm x 17.5 cm x 0.55 cm (175mm x 135mm x 55mm) |
Documentation
Squirrel 2020 Getting Started Guide (.pdf 1.5 MB)
Squirrel 2020 Logging Speed Guide (.pdf 100 KB)
Squirrel 2020 Ethernet Configuraton Guide (.pdf 400 KB)
Squirrel 2020 Ethernet Wireless and Wired Configuraton Guide (.pdf 400 KB)
Squirrel Software Compatibility Guide (.pdf 28 KB)
Application Notes
Understanding the Differences Between State, Event and Pulse Datalogging. (.pdf 300KB)