SAFETY HiTESTER 3258 Field Measuring Instruments Safely Measure Voltage Breaker Panels ■ New Technology ■ Safety Measure voltage on insulated electric cables Measure safely around metal busbars and terminals ■ Applicability Optimized for 30-600 V AC Measurable electrical cable: 38 mm2 or larger insulated wires (100 mm2 or larger recommended) CAT IV 600V 2 HIOKI's new technology enhances voltage measurement safety Development of the SAFETY HiTESTER 3258 opens the door to a new realm of safety by accurately measuring non-destructively through wire insulation, a particular safety concern to those who maintain and inspect electrical facilities Safe Probe Heads True RMS values on large, crystal-clear display Data Hold Indicator Shows when data is being held (HOLD button pressed) APS Indicator (Auto Power Shutoff) The HiTESTER automatically shuts off when 10 minutes have elapsed from the last operation (can be disabled) AC Indicator Low Battery Indicator Reliably safe, non-metallic resin heads Measured Value Voltage Unit Indicator True RMS values retain accuracy despite waveform distortion Voltage Detector Power Button Safety Barrier Easy operation and informative display 1. Hot line check Applicable electric cable types Size: 38 mm2 or larger insulated electric line (100 mm2 or larger recommended) The HOLD lamp flashes when an energized line (at least 30 V AC) is detected. Hot Line Indicator 2. Measured value Actual-size cross sections When the display has stabilized, the HOLD lamp lights and the measured value is displayed. Measured Value 38 mm2 (11.5 mm dia.) insulated cable 3. Hold measured value Press the HOLD button to temporarily freeze the displayed value. 100 mm2 (17 mm dia.) insulated cable Measurement Hold Lamp turns off 3 ■ Ensures safe measurements in the cubicle Point 1 Point 2 Easily measure right through cable insulation Safely measure around busbars Also safe for metallic conductors Actual size Long grip for better safety Safely measure 380-480 V AC lines ■ Get accurate measurements easily The HiTESTER measures the voltage between two probes. To ensure accurate measurements, apply the voltage detector probes perpendicular to the object to be measured. To measure voltage to ground, apply one probe to a ground conductor. Apply each voltage detector probe perpendicular to the object to be measured. Conductor Conductor Conductor ✕ Incorrect measurement Conductor Correct measurement method ✕ Conductor 4 ❏ HiTESTER 3258 measurement principle Measurements with traditional non-metallic-contact voltmeters and phase detectors depend on the coupling capacitance (C1 and C2) between voltage detector electrodes in the probe tips and the measurement objects. That voltage detection method can present problems due to the dependence of the coupling capacitance on the material properties of the measurement objects, making accurate voltage determination (Vm = Vm2 - Vm1) problematic. The SAFETY HiTESTER 3258 employs a new technological principle to detect accurate measurement voltage (Vm) independent of coupling capacitance. ■ Model 3258 Specifications (accuracy guaranteed for one year at 23 ±5°C and 80% RH or less) Measurement parameter Measurement objects Measurement values Max. rated voltage to earth Insulated electric lines (Indoor PVC or equivalent, 100 mm2 or larger), metal conductors Note: Not suitable for shielded cables True RMS display 600 Vrms AC Crest factor 1.8 (sine wave only at 600 V range) Circuit dynamics Temp. characteristics Effect of conductor diameter Effect of nearby conductors Effect of external magnetic field 0.05% rdg./°C 0.5% rdg. (add to measurement accuracy for 38 to 100 mm2 insulated cables) ±5% rdg. or less none 4200 counts, with less than 10 counts zero-suppressed Display Display refresh rate Display response time Approx. once every 0.6 seconds 2.4 s or less Data Hold, Auto Power Shutoff, Low-Battery Warning Functions Operating temp. & humidity Storage temp. & humidity Operating environment Applicable standards 0 to 40°C, 80% RH or less, non-condensating -10 to 50°C, 80% RH or less, non-condensating Indoors, up to 2000 m ASL Safety: EN61010, EMC: EN61326 Six AA (LR6) alkaline batteries Max. operating time: approx. 14 h (power on, no input), or the equivalent of 1000 one-minute operations or 200 five-minute operations Power source Max. rated power Size and weight AC voltage (AC potential bridge) 2 VA 51W(2.01") × 275H(10.83") × 37.5D(1.48") mm (per probe), Cable length: 900 mm (35.43"), 670 g (23.6 oz.) (including batteries) AC Voltage Measurement Accuracy (on insulated PVC cables or equivalent, 100 mm2 or larger) Ranges (auto-ranging) Displayable range Display resolution Range of guaranteed accuracy 420.0 V 0.0 to 420.0 V 0.1 V 30.0 to 420.0 V 600 V 380 to 600 V 1V 380 to 480 V 481 to 600 V Accuracy 40 to 66 Hz 66 to 400 Hz ±1.5% rdg. ±5 dgt. ±2.5% rdg. ±5 dgt. ±2.0% rdg. ±5 dgt. ±5.0% rdg. ±5 dgt. SAFETY HiTESTER 3258 Supplied Accessories: One manual, one soft case and six AA (LR6) batteries HIOKI (Shanghai) Sales & Trading Co., Ltd. : 1608-1610 Shanghai Times Square Office, 93 Huai Hai Zhong Road, Shanghai, P.R.China POSTCODE: 200021 TEL +86-21-6391-0090/0092 FAX +86-21-6391-0360 E-mail: [email protected] HEAD OFFICE : 81 Koizumi, Ueda, Nagano, 386-1192, Japan TEL +81-268-28-0562 / FAX +81-268-28-0568 E-mail: [email protected] HIOKI USA CORPORATION : 6 Corporate Drive, Cranbury, NJ 08512 USA TEL +1-609-409-9109 / FAX +1-609-409-9108 E-mail: [email protected] Supplied Accessory: soft case DISTRIBUTED BY Beijing Office : A-2602 Freetown, 58 Dong San Huan Nan Road Beijing, P.R.China POSTCODE: 100022 TEL +86-10-5867-4080/4081 FAX +86-10-5867-4090 E-mail: [email protected] Guangzhou Office : Room A-3206, Victory PlazaServices Center, No.103, Tiyuxi Road, Guangzhou, P.R.China POSTCODE:510620 TEL +86-20-38392673/2676 FAX +86-20-38392679 E-mail: [email protected] All information correct as of Jan. 16, 2009. All specifications are subject to change without notice. 3258E2-91M-05P Printed in Japan