Accsense - Model PV-3 - Solar Data Logger

Why is the Electrocorder solar data logger better than other similarly priced competitors? The Electrocorder range use a constant sampling technique, unlike the single reading of competitors. When the loggers start to record, they sample every channel 16 times per cycle, a cycle is 16ms at 60Hz and 20ms at 50Hz. At the end of each averaging period, 3 quantities are saved for each channel, the TRMS average, the Max, which is the highest cycle value during the period and the Min, lowest cycle value. This means that it will record all the peaks and troughs which are one cycle or longer.

When recording the Electrocorder will store the average voltage (and current if applied) over the period chosen (1 sec to 60 min), it will also record the highest (max) & lowest (min) cycle values during that period.

The voltage levels are stored with dates and times. With the back-up battery, the Electrocorder can continue to record for 4 weeks. An external 12Vdc PSU input is available, to allow for prolonged logging without batteries. Memory capacity of 32,000 TRMS voltage values per channel (10 bit).

• Recorded values: Records Minimum, Average & Maximum Irradiance, Voltage & Current
• Minimum and maximum time resolution: Always 20ms
• Supplied pyranometer sensor accuracy: +/-2% of range
• Measurement range: 0-1500Wm-2
• Irradiance measurement accuracy: Typically 5% of range
• Pyranometer Input Lead Length: Metric 5m, Imperial/ English 16’ (feet)
• Voltage measurement range: 1 to 300Vdc
• Input impedance: 10MO
• Voltage (DC) measurement accuracy: 1V – 5V < 2%, 60V model, 6V – 60V < 1%. 300V model 60V – 300V ~2%
• Voltage Input Lead Length: Metric 2m, Imperial/English 6’ (feet)
• Current measurement range: 10A to +10A or -100A to +100A, selectable range
• Current measurement accuracy: <5% of selected range
• Current Input Lead Length: Metric 1.5 metres; Imperial/English 4’ (feet)
• Sampling frequency: 800Hz (every 1.25ms)
• Data recorded: Avg, max & min irradiance, voltage & current values during the averaging period
• Memory capacity: 192kB able to record 32,000 levels per channel
• Memory type: Non-volatile SEEPROM
• Memory – averaging period & duration: 1 sec to 60 mins (1 sec gives 2 hrs logging, 60 min gives 300 days logging)
• Real-time clock accuracy: Greater than 0.001%
• Battery life while logging: Unlimited – 12Vdc PSU option & battery backup or1 day on battery power only
• Battery Type: Unit contains four 9V Alkaline batteries (E-Block, PP3, 1604A)
• Communications Interface type: USB
• Environmental (temp & sealing): -10C to +40C or +14°F to +104°F
• Dimensions & Weight: Metric 260 x 180 x 190mm & 2kg Imperial/English – 102 x 72 x 8” & 4lb
• Standards: Recording – EN50160: 1994 – CAT II

Electrosoft is supplied free with all Electrocorder loggers. It allows you to graph and export data files as well as plot energy costs and savings using voltage optimization techniques.

Overview of standard features and reports:

• Sets-up loggers for recording
• Plots voltage & current graphs
• Plots energy & power graphs
• Extrapolates CO2 usage
• Database to track logger location
• Alarms for late returns
• Prints report quality graphs
• Languages: En, Es, Fr, Hr, Cz, Fi, De, It, Po, Pt, Se
• Database can be used across a network
• Prints User Instructions
• Plot multiple graphs on a single axes
• View Voltage Optimization business case
• Email data files
• Voltage unbalance calculation
• Draw Electrical Line Diagrams
• Manage logger calibration dates
• NEC 180 min/min calculations
• Print previews & output to PDF, RTF, XLS, HTML etc