OMYL-M41 (one pulse input channel) and OMYL-M42 (two pulse input channels) data loggers are designed to measure potential-free (dry contact) pulses or voltage signals up to 3V using the included OMYL-CS input cable. With the optional OMYL-CP connection cable the logger can be used for measuring signals up to 24V. These data loggers are available with standard memory of 100,000 readings (OMYL-M41, OMYL-M42) or expanded memory of 4 million readings (OMYL-M41-4M, OMYL-M42-4M).
These devices are fully programmable allowing you to set the data logger to record on one or two channels. The incoming signal type (potential-free or voltage) can be set using the included software.
These data loggers are best suited for operation with counters, photoelectric sensors, revolution-counters, make contact elements, switches and sensors such as flow meters or energy consumption meters with pulse output. Both data loggers can also be integrated into the aerodynamic rain gauge OMYL-RG.
Once activated the data logger senses and records the number of pulses/contact closures that occur within adjacent “time bin” periods. The bin period is selectable from 1 second to over 24 hours. At the end of each bin period, the total number of pulses/counts within the bin period is recorded. The data logger then starts another bin period and continues until either the memory is full or the test period has ended.
The storage medium is non-volatile flash memory so no data is lost if the battery becomes discharged. Data logger setup as well as data retrieval is accomplished using the included standard OMYL-SOFT software. Downloaded data is stored in the OMYL-SOFT software as a text file for viewing in third party software packages or Microsoft Excel. The OMYL-SOFT standard software does not include any graphing functionality. Graphing and analyzing downloaded data files requires the OMYL-SOFT-PLUS version of the software (sold separately)
SPECIFICATIONS Number of Pulse Input Channels OMYL-M41/OMYL-M41-4M: 1 OMYL-M42/OMYL-M42-4M: 2 Signal Input: Potential-free (dry contact) signals and low level pulses < 3 Vdc can be measured with the included OMYL-CS input cable; higher voltage level pulses up to 24 Vdc can be measured with the optional OMYL-CP input cable) Maximum Input Voltage: 24 Vdc Measuring Range Potential Free (Dry Contact) Pulses Pulse Count: 0 to 65,000 pulses Pulse Rate: 0 to 100 Hz Voltage Pulses Pulse Count: 0 to 65,000 pulses Pulse Rate: 0 to 1300 Hz Reading Rate: 1 second to 24 hours Start Modes: Immediate start, delayed start Memory Capacity OMYL-M41/OMYL-M42: 100,000 readings OMYL-M41-4M/OMYL-M42-4M: 4 million readings Memory Wrap Around: Yes (software configurable) Battery: 3V lithium battery [standard temperature range battery (included), optional high temperature range battery]; user replaceable Battery Life (Standard Temperature Range Battery): 4 years at 1 minute reading rate, 230 days at 10 second reading rate, 25 days at 1 second reading rate LED Functionality: Integrated status LED indicates data logging status, low battery or alarm condition Alarms: Software programmable high/low thresholds Computer Interface: USB (interface cable included) Software: XP SP3/Vista/7 and 8 (32- and 64-bit) Operating Environment: -30 to 70°C (-22 to 158°F) with standard lithium battery; -40 to 90°C (-40 to 194°F) with optional high temperature lithium battery Dimensions: 30 H x 50 mm dia (1.18 x 1.97') Weight: 70 g (2.5 oz) Enclosure: Robust, shock-proof POM, IP65