Fluke 1740 시리즈 3상 전력 품질 로거

 Refers to the reference conditions and is guaranteed for two years

 2 years

 2 years recommended

 developed, designed, and manufactured according to DIN ISO 9001

 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:

 Fluke 1745: Class B2 acc. IEC 60654-1
Fluke 1744/43: Class C2 acc. IEC 60654-1

 robust, fully insulated housing and accessories

Fluke 1745:

 IP50 as per EN 60529

Fluke 1744/1743:

 IP65 as per EN 60529

 IEC/EN 61010-1 600 V CAT III, 300 V CAT IV, pollution degree 2, double insulation

 5.2 kV rms, 50 Hz / 60 Hz, 5 s

Emission:

 IEC/EN 61326-1, EN55022

Immunity:

 IEC/EN 61326-1

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="" span="">

Ration selection:

 By job programming

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