Camp Creek Technologies, Inc

Firmware Version 2.0

Firmware Version 2.1

• Sample filter moved to standard settings menu
• Add threshold setting to advanced settings menu
• Add phase balance compensation
• Allow change of menu level when in stopped state
• Deleted the save changes menu item. Changes are saved automatically
• Add lost phase test
• Add data logging to Micro SD card

Firmware updates to versions prior to 2.2 require return to Camp Creek Technologies. Version 2.2 and later may be updated using image on SD card. See download link below.

Firmware Version 2.2

• Auto zero eliminated in favor of fixed calibration
• Time/date update now prompted in standard menu after battery replacement
• Added bootloader to allow firmware update from SD card

Firmware Version 2.2.1

• Adjusted some internal gain settings, not significant

Firmware Version 2.3

• Restored auto zero using improved algorithm for all 3 ranges

Firmware Version 2.4

• Logged run data points now viewable on display
• Added setup selection of AC current probes with various sensitivities
• Lost phase trip is now independent of threshold setting
• Fixed bug that prevented display update when logging to SD card in diagnostic mode (this did not affect trip functionality)
• Fixed bug in Phase Balance option that could affect calibration

Firmware Version 2.4.1

• Perform scale changes at end of peak instead of end of delay to preventing glitches that could give spurious trip

NOTE: AC and DC firmware versions 3.x are identical, with factory configured for AC or DC models.

Firmware Version 3.0

• Signal processing algorithm changed to RMS calculation over 1/2 cycle. This improves noise margin and allows operation with one, two, or three probes on a 3 phase AC motor.
• Deleted phase balance option
• Deleted loss of phase detection trip
• Implements DC motor option on relays with hardware configured for DC

Firmware Version 3.1

• Add failed probe trip to protect against disconnected or failed probe

Firmware Version 3.1.1

• Update RMS calculation to full cycle instead of 1/2. This reduce 60 Hz AC ripple.

Firmware Version 3.1.2

• Fixed bug preventing scale change to increase resolution.
• Perform scale changes at end of peak instead of end of delay, to preventing glitches that could give spurious trip
• Fixed bug incorrectly reporting surge peak duration in log file for long delays

Firmware Version 3.2

• Provisions for soft start or VFD motor starter
• Add option to disable maximum current trip
• Eliminate upper limit of noise filter
• Extend failed probe test timeout to specified inrush time
• Add Standby Time readout and logging
• Add log entries for Operate MOV Clicked and Current Detected
• Logged time starts with 0 when Operate MOV Clicked

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