Duncan Instruments Canada Ltd
Duncan Instruments Canada Ltd.
Electronic Measurement Solutions since 1968
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Data Logging Devices

3-Phase Power Quality Analyzer
Model 3945 Three - Phase Power Quality Analyzer
4MB partitioned memory for waveforms, transients, alarms and trend recording, VA, VAR, W,
kVAh, VARh and kWh per phase and total, Harmonic distortion (Total and individual) from 1th
to 50th.
Model PX5 Three - Phase Power Quality Analyzer
128 Mb Removable Compact Flash Memory Card allow massive data recording for Sags,
swells, interruptions, transients , flicker and harmonic, etc.
 
Model Jupiter - Three - Phase Power Quality Analyzer(Also Available for Rental)
512 Mb removable Compact Flash card allowing immediate use for measuring frequency,
voltage variations, voltage dips, phase to phase voltage swells, short and long interruptions,
supply voltage unbalance, harmonics, ect.
3-Phase Energy / Harmonic Analyzer
Model MI2092 - Three Phase Energy / Harmonic Analyzer (Also Available for Rental)
2 Mb internal memmroy. High accuracy measurement and recording of power quality
parameters (U,I,f, cos ., PF, P,Q,S, current and voltage harmonics up to 63 rd order, etc.).
64 parameters can be monitored or recorded simultaneously up to 4 weeks.
Model ElitePro - Recording Poly Phase Power Meter(Also Available for Rental)
128kB (25,000 readings) with Recording Intervals - 3, 15, 30 seconds; 1, 2, 5, 10, 15, 20, 30
minutes and 1, 12, 24 hrs. Harmonic Analysis to the 63rd Harmonic Real Time Clock Crystal
control. Recording most all basic per-phase and 3-phase average TRMS power and energy
Model VIP System3 - Energy / Harmonic Analyzer
512 k Memory Pack turns VIP System3 into a recorder to carry out surveys. Harmonic Black
box supplied for full harmonic analysis. Built in printer for on site real time record printing.
 
3-Phase Voltage Disturbance Analyzer
Model PQR2020 - Three Phase Voltage Disturbance Analyzer (Also Available for Rental)
Low cost PQR2020 with FLASH RAM can record 32,750 voltage readings (per channel) and
32,750 events for Sags, Surges, Power Failures, Impulses, High Freq. Noise and frequency
faults.
Single Phase Power & Harmonic Analyzer
Model Nanovip Plus MEM - Single (Balanced Three) Phase Power & Harmonic Analyzer
1 Mb internal memory can store 4032 records at regular intervals in the range of 2 second to
99 minutes 59 seconds. More than 100 parameters including harmonic analysis up to 24th.
 
Single Phase Watt Logger
Model Watts Up? Pro - Multi-Functional Watt Logger
Watts up? Pro is "plug load" meter that measure the amount of electricity used by whatever is
plugged into it. 32,000 records is in stop/overwrite mode, and when only logging watts. In
automatic mode with all parameters recorded the storage is approximately 1000 records.
Current Logger
Flexible Current Probe Sample logger
Record 8092 readings of current measurement up to 5000AAC. Flexible automatic memory
management.
 
Model CL600 Clamp-On AC Current Logger
Storage of 8192 data points with a built in RS-232 port for down loading data. 0 to 600Arms
True RMS measurements.
 
Temperature Data Loggers
Temperature Data Loggers - model LOGit Series
Store over 10,000 measurement points and 1 second to 18 hour sample rate.
 
 

Duncan Instruments Canada Ltd. provides quality data logger equipment. Data loggers and data recorders acquire digital data from sensors and other signals. They are primarily used to store data (for subsequent download to a host PC), but may also include real-time features including monitors and alarms. Important specifications to consider when searching for data loggers and data recorders include differential analog input channels, digital I/O channels, sampling frequency, resolution, and accuracy. Differential channels use the difference between two signals as an input; common mode is filtered out. In some systems, differential inputs are combinations of two single-ended inputs; in this case, twice the number of differential channels would be available as single-ended inputs. Digital or discrete channels are used for low-level on-off signals used in applications such as communication, user interface, or control. Sampling frequency is the frequency of the analog signal sampling and conversion to a digital value. Resolution refers to the degree of fineness of the digital word representing the analog value. A ten-bit number contains 210, or 1024, increments. A 0-10V signal could therefore be resolved into approximately 0.01V increments. A 12-bit representation would be in 212 (4096) increments, or divisions of 0.0024V for the same signal. Each additional bit doubles the resolution, and one bit is required for the polarity (sign) of a number. Data loggers and data recorders accuracy depends on the signal conditioning linearity, hysteresis, temperature considerations, etc.


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