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Location: Rancho Cordova, California, United States
Ships to: US,
Item: 404092887713
Condition:Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is … Read moreabout the conditionUsed: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Arbiter:Arbiter
Type:Power Meter
Custom Bundle:Yes
Country/Region of Manufacture:United States
Modified Item:No
eBay The perfect field analyzer for the power quality engineer, Model 933A Portable Power Sentinel™ is the most accurate and affordable portable power quality meter in the industry. The proprietary EnergyDSA™ Digital Signal Analysis algorithms allow the user to measure or record harmonics, flicker (per IEC 61000-4-15, PST and Instantaneous), K-factor and interruptions. The data logging capabilities allow the user to specify which data to log as well as when to log the data, continuously or when user specified thresholds are exceeded. Time, Phase and Frequency Capabilities Model 933A has the ability to also measure system time, phase, frequency and phasors. When synchronized using the IRIG-B IEEE-1344 unmodulated input or the GPS input, the Model 933A is capable of accurate revenue metering and synchrophasor analysis per the IEEE-1344. Pre-fault data is buffered for a half second allowing for accurate fault recording and event driven data analysis. The host processor and the DSP each have 128 MB of memory which provides ample space for data storage Portability Thanks to the high level of integration made possible with EnergyDSA™, this unit combines multiple capabilities into one compact, light weight instrument. Weighing less than 5.8 kg (12.8 lbs), the Portable Power Sentinel™ is a power quality monitor, a data and event logger, a system monitor, and a revenue meter designed to accompany you wherever you go and operate continuously for a full eight-hour shift. The unit comes pre-assembled with the adjustable tilt handle/bail assembly for easy transportability. Input/Output Configuration 3 Ø: 3-element, 2½-element, 2-element, selectable 1 Ø: 2-element, 1½-element, 1-element, selectable Voltage Range (3 Ø/1 Ø) 1 Vrms to 650 Vrms, selectable (phase-to-phase for 2 and 2½-element; phase-to-neutral for 1 and 3-element) Overrange 1200 V peak, nominal Current Model 933A-01 20 Amp direct input module: Range (3 Ø/1 Ø) 0.05 Arms to 20 Arms, selectable, per element Low Range 1 mA to 1 Arms Overrange 40 A peak, nominal (maximum continuous input current: 20 Arms per element, all ranges VA, W, VAR Range Any voltage, current and number of elements within the specified limits Compensation CT and PT Both magnitude and phase compensation, CT with 12 point nonlinear interpolation Transformer Both iron and copper loss Frequency Range 45 Hz to 65 Hz, for specified accuracy Harmonics to 3 kHz Inputs Voltage Safety banana plugs Current 5-way binding posts (Model 933A-01) Insulation 400 volts, nominal, to neutral/chassis, surge voltage class III 600 volts, nominal, to neutral/chassis, surge voltage class II Power Quality Harmonics Measurement Standard 2nd to 50th (50 Hz or 60 Hz) per IEC 61000-4-7, 100 ms overlapping data window Measurements THD, K-factor, rms harmonic current and voltage, rms harmonic current and voltage with K-factor compensation (each harmonic magnitude is multiplied by the square of the harmonic number before summing), individual magnitude and phase Logged Data Selectable, may be regularly logged or registered. Event-logged also available when user-specified limits are exceeded Interruptions Logged Data Selectable, may be regularly logged or registered. Event-logged also available when user-specified limits are exceeded. Flicker Standard Per IEC 61000-4-15, PST and Instantaneous Logged Data Selectable, may be regularly logged or registered. Event-logged also available when user-specified limits are exceeded. Limit Alarms Functions Upper or lower limits may be set on most measured functions. Limits may also be set on maximum imbalance (ratio of Zero and Negative Sequence Components to Positive Sequence) Output Via system interface and display Accuracy/Specifications Accuracy Note Accuracy specifications include all sources of uncertainty. Except as noted, specifications apply for the full operating range, including temperature (- 10 °C to + 50 °C), line voltage, input range including specified overrange, power factor, input frequency, and drifts over a one-year calibration interval. Specifications assume synchronization to GPS and operation in 3-element mode or in a well-balanced system where imbalance does not degrade accuracy. Watts 0.05 % of reading, for voltage 7 Vrms to 650 Vrms and current 10 mA to 20 Arms and PF > 0.2 Vrms 0.05 % of reading or ± 5 mV, whichever is greater. (For voltage 50 Vrms to 650 Vrms and current 50 mA to 20 Arms) Arms 0.05 % of reading or ± 0.1 mA, whichever is greater. (For voltage 50 Vrms to 650 Vrms and current 50 mA to 20 Arms) Phase Angle, Ø Ø: 0.01 °, phase-to-phase or voltage-to-current (For voltage 50 Vrms to 650 Vrms and current 50 mA to 20 Arms) 0.2 % (current 10 mArms to 50 mArms) Ø underrange: 0.05 ° of reading (current 10 mArms to 50 mArms) VA, VAh 0.05 % of reading (For voltage 50 Vrms to 650 Vrms and current 50 mA to 20 Arms) 0.1 % (current 10 mArms to 50 mArms) VAR, VARh same as W, Wh except replace PF with (1 – PF2)0.5 Power Factor 0.0002 · sin (Ø) (For voltage 50 Vrms to 650 Vrms and current 50 mA to 20 Arms) 0.001 · sin (Ø) (current 10 mArms to 50 mArms) Harmonics 0.1 % THD or 5 % of reading, whichever is greater Frequency < 1 ppm (0.0001 %) of reading, 50 Hz or 60 Hz nominal, plus timebase error System Phase 0.03 ° + [timebase error · 360 ° · frequency] (With GPS Option) Time 1 µs + timebase error (With GPS Option) Event Inputs ± 10 µs (typical) Flash Memory Data Storage Host Processor Capacity 128 MB. See Operation Manual for record length and capacity calculations Data All functions measured and totalized by Model 933A; each record is stored with a time tag Storage Rate Selectable Event data stored upon occurrence Lifetime 100,000 storage cycles minimum Data Retention Indefinite; no power or battery is required to retain data DSP Processor Capacity 128 MB; about 1000 seconds or 17 minutes Data Primary waveform Storage Rate 10240 samples per second (approximately 170 samples per cycle). Fixed 30 cycles pre-fault data. Event data stored to Host Processor flash memory upon occurrence. User has same triggers as the Host Processor flash and can select the maximum fault duration, post fault recording time, and retrigger on/off. Lifetime 100,000 storage cycles minimum Data Retention Indefinite; no power or battery is required to retain data System Control and Monitoring System Time, Phase and Frequency System Time Unlimited accumulation with ± 1 µs resolution Frequency 6 digits, xx.xxxx Hz System Phase 0 ° to 360 ° with 0.01 ° resolution Phasors Standard Per IEEE Standard 1344 or PSCSV Rate 20 measurements/second Interface Operator Display 320 pixel x 240 pixel graphic LCD display with CCFL Backlight Keyboard 30 keys: 5 soft function, 7 dedicated function, 5 cursor control, power on/off and 12 key numeric key pad Communications Serial RS-232, RJ-11 modular connector USB Version 1.1, B-Type receptacle Protocols Proprietary PowerSentinelCSV 933 (PSCSV933) Synchronization IRIG TTL-Level Shift TTL-Level Shift per IEEE-1344 as output from an Arbiter Systems Model 1084B General/Remote Optional Remote GPS receiver available. See Accessory AS0077600 GPS Tracking GPS-L1 (1575.42 MHz); 12 channel (tracks up to 12 satellites) GPS Acquisition 2 minutes typical GPS Accuracy UTC-USNO ± 1 µs (only need 1 satellite with correct position) GPS Out of Lock Via system interface and status display; optional, via contact closure Timebase Error GPS Locked Less than 1 µs, when locked to at least one satellite with correct position Unlocked 10 ppm, typical, after being locked for 10 minutes minimum IRIG-B Less than 1 µs + accuracy of IRIG-B source General Physical Size 205 mm x 305 mm x 225 mm (8 in x 12 in x 8.8 in) 483 mm x 483 mm x 305 mm (16 in x 16 in x 12 in), shipping Weight 5.8 kg (12.8 lbs), maximum 9.1 kg (20 lbs), shipping Environmental Temperature Operating: - 10 °C to + 50 °C Nonoperating: - 40 °C to + 75 °C Humidity Noncondensing Power Requirements Internal Battery Type NiMH Operation Eight hours typical Charging Four hours Stand by Use 5 VA typical External Power Range 85 Vac to 264 Vac, 47 Hz to 63 Hz or 120 Vdc to 275 Vdc, 25 VA typical when charging battery, 5 VA typical standby use Input IEC connector with fuse; surge withstand per ANSI C37-90.1 and IEC801-4 standard. ----------------------------------------------------------------------------------------------------------------------- Unit powers on but no further tests were preformed. Comes with printed manual. Shipping will be fully insured.
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