LTC Levelogger Edge vs. LTC Levelogger Junior

Model 3001 LTC Levelogger Edge
solinst ltc levelogger edge groundwater conductivity dataloggers
LTC Levelogger Junior
solinst ltc levelogger junior groundwater dataloggers
Level Sensor Piezoresistive Silicon with Hastelloy Sensor Piezoresistive Silicon with Hastelloy Sensor
Ranges 5, 10, 20, 30, 100, and 200 m 10 and 30 m
Accuracy ±0.05% FS (lifetime calibration) ±0.1% FS (lifetime calibration)
Units of Measure cm, m, ft, psi, kPa, bar (ºC, ºF) cm, m, ft (ºC)
Normalization Automatic Temperature Compensation Automatic Temperature Compensation
Temp Compensation Range 0ºC to 50ºC 10ºC to 40ºC
Temperature Sensor Platinum Resistance Temperature Detector (RTD) Platinum Resistance Temperature Detector (RTD)
Accuracy ±0.05ºC ±0.1ºC
Resolution 0.003ºC 0.1ºC
Conductivity Sensor 4-Electrode Platinum 4-Electrode Platinum
Full Range 0 to 100,000 μS/cm 0 to 80,000 μS/cm
Calibrated Range 50 to 80,000 μS/cm 500 to 50,000 μS/cm
User Calibration Points 1413, 5000, 12,880, 80,000 μS 1413, 5000, 12,880 μS
Accuracy ±1% > 30,000 μS/cm; ±2% 500 - 30,000 μS/cm; ±30μS < 500 μS/cm ±2% of reading or 20 μS/cm
Resolution ±0.1 μS/cm ±1 μS/cm
Temp Compensation Range 0ºC to 50ºC 0ºC to 40ºC
Normalization Specific Conductance @ 25˚C Specific Conductance @ 25˚C
Battery Life 8 Years (1 reading every 5 minutes) 5 Years (1 reading every 5 minutes)
Clock Accuracy ±1 minute/year (-20ºC to 80ºC) ±1 minute/year (0ºC to 40ºC)
Operating Temperature -20ºC to 80ºC -20ºC to 80ºC
Maximum Readings 27,000 sets of readings in FRAM memory 16,000 sets of readings in Non-volatile EEPROM, FRAM back-up
Memory Slate or Continuous Slate
Communication Optical Infra-red: USB, RS-232, SDI-12 Optical Infra-red: USB, RS-232, SDI-12
Communication Speed 9600 bps, 38,400 bps with USB optical reader 9600 bps
Size 7/8" x 7.5" (22 mm x 190 mm) 7/8" x 7.5" (22 mm x 190 mm)
Weight 7.05 oz. (200 grams) 7.05 oz. (200 grams)
Corrosion Resistance Hastelloy pressure sensor, Titanium ceramic PVD coating Hastelloy pressure sensor
Wetted Materials Platinum, Hastelloy, 316L Stainless Steel, Delrin®, Viton®, Titanium ceramic PVD coating Platinum, Hastelloy, 316L Stainless Steel, Delrin®, Viton®
Sampling Mode Linear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View Linear, Real Time View, Future Start
Measurement Rates 2 seconds to 99 hours 5 seconds to 99 hours
Barometric Compensation Software Wizard and Barologger Edge Software Wizard and Barologger Edge
Warranty 3 Years 1 Year