Fluke 1744 Three Phase Power Logger Memobox (Mfg part No. 2583422) is capable of simultaneously logging up to 500 power parameters for up to 85 days and monitoring for events. This three phase power logger memobox helps uncover intermittent and hard-to-find power quality issues.
- Compact, fully-insulated housing and accessories fit easily in tight spaces next to live power
- PQ Log software quickly analyzes trends, creates statistical summaries, and generates detailed graphs and tables
- Monitors power for the long-term: Data can be downloaded during recording without interruption
- Measure voltage with premium accuracy
- Quickly validate quality of power
- Designed for everyday field use with no moving parts
- Durable insulated case
- Two year warranty
- IP65 water-proof monitor for logging the most common power parameters including V, A, W, VA, VAR, PF, energy, flicker, voltage events, and THD.
- Measures voltage and current harmonics, interharmonics, mains signaling, unbalance, and frequency.
Intrinsic error | Refers to the reference conditions and is guaranteed for two years |
Recalibration interval | 2 years recommended |
Quality system | Developed, designed, and manufactured according to DIN ISO 9001 |
Reference conditions: | 23 °C ± 2 K; 74 °F ± 2 K , Vm=230 V ± 10%, 50 Hz ± 0.1 Hz or 60 Hz ± 0.1 Hz |
Phase sequence: L1, L2, L3 | |
Interval length: 10 minutes | |
Wye connection: (L1, L2, L3 to N) | |
Power supply: 88 V ... 265 V AC | |
Working temp. range | -10 °C to 55°C; 14 °F to 131°F |
Operating temp. range | 0 °C to 35°C; 32 °F to 95°F |
Storage temp. range | -20 °C to 60°C; -4 °F to 140°F |
Reference temp. range | 23 °C ± 2 K; 74 °F ± 2 K |
Relative humidity | Class C2 acc. IEC 60654-1 |
Protection type | IP65 as per EN 60529 |
Safety | IEC/EN 61010-1 600 V CAT III, 300 V CAT IV, pollution degree 2, double insulation |
Type test voltage | 5.2 kV rms, 50 Hz / 60 Hz, 5 s |
EMC | Emission: IEC/EN 61326-1, EN55022 Immunity: IEC/EN 61326-1 |
Input voltage: | Input range VI P-N: max 480 V AC |
Input range VI P-P: max 830 V AC | |
Max. overload voltage: 1.2 VI | |
Input range selection: By job programming | |
Connections: P-P or P-N, 1- or 3-phase | |
Nominal voltage VN: <= 999 kV with PTs and ratio | |
Input resistance: App. 820 kΩ per chan. Lx-N Single phase (L1 or A, L2 or B, L3 or C connected): app. 300 kΩ | |
Intrinsic uncenrtainty: 0.1 % of VI | |
Voltage transformer: Ratio: <999 kV / VI | |
Ration selection: By job programming | |
Current input with Flexi Set: | Input ranges II L1 or A, L2 or B, L3 or C, N: 15 A / 150 A / 1500 A / 3000 A ac |
Measuring range: 0.75 A … 3000 A ac | |
Intrinsic uncertainty: < 2 % of II | |
Position influence: Max. ± 2 % of measured value – for distance conductor to meas. head > 30 mm | |
Stray field influence: < ± 2 A ac for Iext=500 A ac and distance to measuring head > 200 mm | |
Temperature coefficient: < 0.05 % / K | |
Current transformer: Ratio <= 999 kA / II | |
Ratio selection: By job programming | |
Connection: 3-phase, 3-phase +N, 2 phase L1 or A and L3 or C (2 W-meter-method) 7 pole connector | |
Current input for clamp: | Input ranges II L1 or A, L2 or B, L3 or C, N: 0.5 V nominal (for II) 1.4 Vpeak |
Intrinsic uncertainty: < 0.3 % of II | |
Max. overload: 10 V ac | |
Current transformer: Ratio Ω 999 kA / II | |
Power systems | Delta, 2-Element Delta, Wye, Single Phase, Split Single Phase |
Logger: | |
Power supply: | Functional Range: 88 V to 660 V absolute, 50 Hz / 60 Hz |
Power consumption: 5 Watts | |
Ride through: 3 sec Capacitor | |
Fuse: Power supply fuse can be replaced in service facility only. Supply can be connected in parallel to measuring inputs (up to 660 V) | |
Display, indicators: | LEDs for status and voltage levels |
Memory: | Capacity 8 MB Flash-EPROM |
Intervals: A function > 12000 intervals for > 85 days with 10 min intervals P function > 30000 intervals for > 212 days with 10 min intervals | |
Events: > 13000 | |
Memory model: linear, circular | |
Interface | RS 232, 9600...115 000 Baud, automatic Baud rate selection, 3-wire communication |
Dimensions | 170 mm x 125 mm x 55 mm (69in x 51in x 22in) |
Weight | approx. 2 kg |
Measurement: | A/D converter: 16 bit, sample rate: 10.24 kHz |
Anti-aliasing filter: FIR-Filter, fc =4.9 kHz | |
Frequency response: Uncertainty < 1 % of Vm for 40 Hz to 2500 Hz | |
Interval length: 1, 3, 5, 10, 30 s, 1, 5, 10, 15, 60 minutes | |
Averaging time for Min/max values: ½, 1 mains period, 200 ms,1 , 3 , 5 s | |
Time base: Resolution: 10 ms (at 50 Hz), deviation: 2s/day at 23 °C; 74 °F ± 2 K |
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Disturbance analysis | |
Quality of service compliance | |
Power quality studies | |
Load studies | |
Energy and power quality assessment | |
Input resistance: App. 8.2 kΩ |