3255-50 D I G I TA L H i T E S T E R Field measuring instruments Combine with CLAMP ON PROBE for AC current measurement Combine with CLAMP ON PROBE for AC current measurement Actual-size http://www.hioki.co.jp/ CAT III 600V CAT II 1000V HIOKI company overview, new products, environmental considerations and other information are available on our website. For industrial power lines S afety M easures ● Dust-proof and water-proof construction (IP54) ● Polarized terminal design prevents incorrect insertion of test leads ● Internal current-limiting resistor and fuse protect E nhanced C onvenience ● Safe and simple AC load current measurement by optional CLAMP-ON PROBE against operating errors and catastrophic failures 0.44 A / 1000 V Fuse 9010, 9018 (shut-off capacity 10 kA) 3255-50 Protection device Current limiting resistor In addition to internal (5 Ω) circuitry to protect against + connection errors during Tester circuit use, the current-limiting COM resistor and fast-blow fuse protect against short-circuit conditions in the unlikely event of catastrophic failure of the tester circuit: short-circuit current is limited until interruption by the fuse, rated for up to 10 kA. *If voltage is applied to the test leads while in the resistance measurement mode, as long as it is within the measurement category (CAT III 600 V, or CAT II 1000 V), protective components in the tester circuitry prevent the fuse from opening. ■ 3255-50 specifications (Accuracy at 23˚C±5˚C (73˚F±9˚F), 80% rh or less) 10.00 A 20.00 A 50.0 A 100.0 A 200.0 500 A A 1000 A 420.0 Ω ± 1.0 %rdg. ± 8 dgt. 4.200 k Ω ± 0.7 %rdg. ± 4 dgt. 42.00 k Ω 420.0 k Ω 4.200 MΩ 42.00 MΩ Continuity (420.0 Ω) Diode Main unit Accuracy ± 2.0 % rdg. ± 4 dgt. (50Hz to 500Hz) Add the accuracy of clamp sensor ± 1.0 %rdg. ± 4 dgt. ± 2.0 %rdg. ± 4 dgt. ± 5.0 %rdg. ± 4 dgt. Input impedance 1000 V ± 0.7 % rdg. ± 1.5 % rdg. ± 4 dgt. ± 4 dgt. V 9010, 9018 (10 to 500 A) V ±0.5%rdg.± 4dgt. ±1.1%rdg.± 4dgt. Range table of clamp on probe 42.00 420.0 Appox. 10 MΩ Appox. 11 MΩ Appox. 10 MΩ Appox. 10 MΩ 3.4 Vmax. Appox. 0.7 V Appox. 0.5 V A built-in buzzer sounds when the resistance Open-circuit terminal voltage value is less than 45 Ω ± 35 Ω (±1.0 %rdg. ± 8 dgt.) Judgment (0.15 V to 2.00 V) 3.4 Vmax. Open terminal voltage/current 3.4 V/850 µA max. Overload protection Current limiting resistor: 5 Ω, Fuse: 0.44 A / 1000 VAC/DC (shut-off capacity 10 kA) 420.0 mV ± 1.0 % rdg. ± 2.0 % rdg. ± 4 dgt. ± 4 dgt. 4.200 V Notes 1000 V DC/AC rms(sin) or 107 V·Hz, 1 minute Accuracy AC 50Hz to 500Hz Input impedance DC Open-circuit terminal voltage Resistance AC current Clamp sold separately AC / DC voltage Range Set the clamp range to match the range of the 3255 -50 ● Option 9010 CLAMP ON PROBE R a n g e Accuracy(45 - 66 Hz) Frequency characteristic Output voltage Max. rated voltage to earth Meas. conductor dia. Dimensions and mass 9018 AC 10/20/50/100/200/500 A ±1.5 %rdg. ±0.1% f.s. ±3 % f.s. 40 Hz to 1 kHz: ±6 % 40 Hz to 3 kHz: ±1 % AC 0.2 V f.s. 600 V rms (insulated conductor) φ 46 mm, 50 × 20 mm busbar 74W × 184H × 37D mm, 420 g(9010), 410 g(9018) Lead length approx. 3 m ● AC Measurement: average value ● Ancillary functions: automatic and manual range, data hold, auto power save, battery life warning ● Display: 4199 max. (1099 for 1000 V range) ● Sampling rate: 2.5 samples/sec ● Applicable standards: Safety - EN61010 CAT III 600V, CAT II 1000 V, EMC EN61326, Dust-proof and water-proof structure - EN60529 IP54 ● Ambient temperature / humidity: 0 to 40˚C (32˚F to 104˚F) 80% rh (no condensation) ● Storage temperature/ humidity range: -20 to 40˚C (-4˚F to 104˚F) 80% rh / 40 to 60˚C (104˚F to 140˚F) 70% rh(no condensation) ● Power source: R03 manganese battery✕2 or LR03 alkaline battery ✕2 ● Continuous operation: In DC voltage approx. 200 hours (with manganese batteries), approx. 500 hours or more (with alkaline batteries) ● Dimensions and Mass: Approx. 70 W ✕145 H ✕ 31 D mm, approx. 210g (Approx 2.8˝ W ✕ 5.8˝ H ✕1.3˝ D, 7.5 oz.)(including batteries) cord length 70 cm Includes 9207-10 TEST LEAD and 9371 CARRYING CASE DISTRIBUTED BY HEAD OFFICE : 81 Koizumi, Ueda, Nagano, 386-1192, Japan TEL +81-268-28-0562 / FAX +81-268-28-0568 E-mail: os-com@ hioki.co.jp HIOKI USA CORPORATION : 6 Corporate Drive, Cranbury, NJ 08512 USA TEL +1-609-409-9109 / FAX +1-609-409-9108 E-mail: hioki@ hiokiusa.com Shanghai Representative Office : 1704 Shanghai Times Square Office 93 Huaihai Zhong Road Shanghai, 200021, P.R.China TEL +86-21-6391-0090, 0092 FAX +86-21-6391-0360 E-mail: [email protected] All information correct as of Oct 3, 2003. All specifications are subject to change without notice. 325550E2-3XB-05U Printed in Japan