Measures and records commutator surface measurement, DC current and temperature. Precise measurement resolution of 1 micron. (0.04 mils) ProFlash upgradeable firmware. RS232 Interface with cable. MAS™ Windows based software. CE compliant. 3 Year Warranty (on instrument only). 4.3"x2.3" (100mmx60mm) LCD screen. Built in charger & battery conditioner. Time & date stamped records. Long life Nicad battery pack. 128 Kilobyte non volatile memory (Approx 100,000 samples). To keep electric motors and generators operating at peak efficiency and to maximize their useful life, it is vital to maintain commutators and slip rings in a perfectly round and smooth condition. Particularly with commutators, it is bar-to-bar height variations of adjacent bars rather than simply out of roundness that can cause a significant loss of output efficiency, increase power consumption, cause premature wear and damage of brushes, and even lead to serious breakdown problems. While an instrument such as a Dial Indicator can detect out of roundness (or TIR) on commutators, such a device cannot detect the more serious problems of bar-to-bar height variations and raised mica insulation. With a precise measurement resolution of 1 micron (0.04 mils) the Profiler easily produces in just a few minutes a detailed and accurate report which can prove a clean bill of health on all counts. Measurements can be recorded into the instrument's internal memory for later review on the large LCD and for printing from the supplied portable thermal printer. These measurements can also be downloaded to the MAS (Measurement analysis Software) PC application for data archiving and presentation purposes. MAS is included in the price of the Profiler, not an expensive add-on. Windows based software for flexible data manipulation. Producing a variety of graphs and printout options. User Manual Product Specification PDF Document Software/Firmware ITEM SPEC REMARKS Model: Profiler   RANGE Displacement ?400 µm (?16 mil) Metric/Imperial is user selectable Temperature ºC -10 to +1000 (ºF +14 to +1830) With Optional Type K Thermocouple (Ambient 25 ºC) Current 0 to 1000 Amps DC With Optional Current Probe  RESOLUTION Displacement 1 µm (0.04 mil) Temperature 1ºC (1ºF) Current 1 Amp  ACCURACY At Ambient Temperature of 23 ?5°C (73 ?9°F) Displacement ?2% ?4 µm (0.16 mil) Battery voltage not less than 6.5 V Temperature ?1% of reading ?1ºC (2ºF) Does not include thermocouple error Current ?1% of reading ?1 Amp Does not include current probe error  SAMPLING INTERVAL Displacement Maximum recording speed 100 mm / second (4" / second) Slip ring segment size 4mm ?0.5 mm (160 mil ?20 mil) Shape recordings are sampled at 0.5 mm (20 mil) across the bar or segment Temperature & Current 0.1 seconds to 60 hours Selectable in steps of 0.1 second, 1 second, 1minute or 1 hour  MEMORY Capacity 128 Kilobytes - Approx 100,000 individual samples Non-Volatile memory (with battery back up) Data Format Up to 50 named DATA SETS Up to 50 RECORDINGS per data set Up to 9,999 SAMPLES per recording Each recording has time/date stamp # of samples is dependent on # of DATA SETS Data Set Naming Up to 16 Alpha-Numeric characters  DISPLAY Type LCD with Graphic capabilities Resolution 240 x 128 pixels Viewing Area 110mm x 60mm (4.3" x 2.3") Backlight Electroluminescent  PROFLASH Allows internal firmware to be upgraded via built-in RS232 port Download firmware upgrades via the Internet  COMMUNICATIONS RS232 15kV ESD Protected. Cable with DB9 connector included Baud Rate 9600, 19200, 57600 bits per second Automatic Baud Rate Selection  TERMINATION Displacement Custom 8-pin round plug Temperature Socket accepts miniature thermocouple twin blades Blades spaced 7.9 mm (5/16") center to center Current BNC Connector Communications Custom 5-pin round plug  BATTERY Type Custom Nickel Cadmium Pack Voltage 7.2 Volts nominal Capacity 800 mAh nominal Operating Time 7 hrs with backlight off, 5 hrs with backlight on - (nominal)  CHARGE AND CONDITIONER Integral dual rate charger - Automatic and Manual control Mains plug pack is included with kit. (Specify voltage and frequency at time of order) Fast Charge Rate 0.7A nominal 1.25 hours for complete charge - (nominal) Discharge Rate 0.5A nominal Combats NiCad battery memory effect  MECHANICAL Size 9.0"W x 6.0"L x 2.6"H (230mm x 153mm x 67mm) Weight - Base Unit 1.35 kg (3 lb) Weight - Complete Kit 10 kg (22 lb)  ENVIRONMENTAL TEMPERATURE Operating 0ºC to 50ºC (32ºF to 122ºF) Storage -10ºC to 60ºC (14ºF to 140ºF) HUMIDITY Operating 80% RH noncondensing 32ºF to 86ºF 70% RH noncondensing 86ºF to 122ºF Storage 95% RH The manufacturer reserves the right to modify specifications without prior notice.