>> Measures Current, Voltage, Resistance, High Voltage, Pulse and Digital Event/State Inputs
>> Integated 802.11b Wireless (Wi-Fi) Ethernet Networking, USB and RS-232 Comm Ports
>> 16 True Differential or 32 Single Ended Universal Analog Input Channels
>> Analogue Inputs: Thermistors, Thermocouples, RTD Sensors (2 Wire) and 4-20mA Signals
>> Programmed Using LCD Display and 4 Integral Buttons or Software
>> 4 Alarm Outputs and 4 Pulse Rate/Counter Inputs (64kHz and 100Hz)
>> ±(0.05% Readings + 0.025% Range) Accuracy
>> Standard Sampling Rate up to 10 Hz with 20 Hz and 100 Hz Sampling Rates on 2 Channels
>> Stores up to 1.8 Million Readings on Removeable SD Card
>> 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 2040 Wifi Specifications
| Data Channels | Single-Ended: 32 Analog Channels Differential: 16 Analog Channels (Single-Ended or Differential Available, Not Both) Analog to Digital Converter: 2 3 or 4 Wire: 0 Pulse: 4 (2 x 64kHz & 2 x 100Hz) Event (Digital): 8 State Inputs or 1 8-Bit Binary High Voltage: 2 Temperature: 2 (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 |
| Sampling Rate | 1 Second to 24 Hours (1 Sec. Increments) 2, 5, 10, 20* or 100* Hz * With Mains Rejection Off (20Hz or 100Hz Only Available on 2 Channels) |
| Analog to Digital Conversion | Type: Sigma - Delta Resolution: 24 Bit |
| 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 1.8 Million Samples/Readings External: 1 GB SD Card (Removeable) |
| 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 | 2-Wire: 0 to 1,250Ω, 0 to 5,000Ω, 0 to 20,000Ω, 0 to 300,000Ω |
| Thermistor Range | U & Y-Type: -50°C to 150°C (-58°F to 302°F) |
| Pt100/1000 Range (2-Wire) |
-200°C to 850°C (-328°F to 1562°F) |
| Calculated Channels | Up to 16 Virtual Channels Derived from Physical Input Channels |
| Resolution | Up to 6 Significant Digits |
| Communication | RS-232: Serial Port - Auto Bauding to 115,200 Baud Ethernet: 10/100 Base T (TCP/IP) USB: 1.1 and 2.0 Compatible Other: GSM, WiFi and PSTN Modems (External Attachments) |
| Wireless Communication | 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 External Mains Power 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 130 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% @ 40°C non-condensing |
| Standards Compliance | CE |
| Weight | 1.2 kilograms |
| Dimensions | 23.5 cm x 17.5 cm x 0.95 cm (235mm x 175mm x 95mm) |
Documentation
Squirrel 2040 Getting Started Guide (.pdf 1.5 MB)
Squirrel 2040 Logging Speed Guide (.pdf 180 KB)
Squirrel 2040 Ethernet Configuraton Guide (.pdf 400 KB)
Squirrel 2040 Ethernet Wireless and Wired Configuraton Guide (.pdf 400 KB)
Squirrel 2040 Technical Notes (.pdf 200 KB)
Squirrel Software Compatibility Guide (.pdf 28 KB)
Application Notes
Understanding the Differences Between State, Event and Pulse Datalogging. (.pdf 300KB)