3258 ASM-SENSOR | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 4
Technical content
Field Measuring Instruments SAFETY HiTESTER Safely Measure Voltage Breaker Panels ■ Applicability Optimized for 30-600 V AC ■ New Technology Measure voltage on insulated electric cables Measurable electrical cable: 38 mm or larger insulated wires (100 mm or larger recommended) ■ Safety Measure safely around metal busbars and terminals CAT IV 600V
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 Voltage Detector Easy operation and informative display 2. Measured value When the display has stabilized, the HOLD lamp lights and the measured value is displayed. 1. Hot line check The HOLD lamp fl ashes when an energized line (at least 30 V AC) is detected. Hot Line Indicator 3. Hold measured value Press the HOLD button to temporarily freeze the displayed value. Lamp turns off Measured Value Measurement Hold Size: 38 mm or larger insulated electric line (100 mm or larger recommended) 38 mm (11.5 mm dia.) insulated cable 100 mm (17 mm dia.) insulated cable Actual-size cross sections Applicable electric cable types Safe Probe Heads Reliably safe, non-metallic resin heads Low Battery Indicator 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 Voltage Unit IndicatorMeasured Value True RMS values retain accuracy despite waveform distortion True RMS values on large, crystal-clear display Power Button Safety Barrier
■ Ensures safe measurements in the cubicle ■ 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. Also safe for metallic conductors Conductor Incorrect measurement✕ Correct measurement method Safely measure 380-480 V AC lines Long grip for better safety Easily measure right through cable insulation Safely measure around busbars Point 1 Point 2 Apply each voltage detector probe perpendicular to the object to be measured. Conductor Conductor Conductor Conductor
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 DISTRIBUTED BY All information correct as of Jan. 16, 2009. All specifi cations are subject to change without notice. 3258E2-91M-05P Printed in Japan HIOKI (Shanghai) Sales & Trading Co., Ltd. : 1608-1610 Shanghai Times Square Offi ce, 93 Huai Hai Zhong Road, Shanghai, P.R.China POSTCODE: 200021 TEL +86-21-6391-0090/0092 FAX +86-21-6391-0360 E-mail: info-sh@hioki.com.cn Beijing Offi ce : 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: info-bj@hioki.com.cn Guangzhou Offi ce : 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: info-gz@hioki.com.cn SAFETY HiTESTER 3258 Supplied Accessories: One manual, one soft case and six AA (LR6) batteries Measurement parameter AC voltage (AC potential bridge) Measurement objects Insulated electric lines (Indoor PVC or equivalent, 100 mm2 or larger), metal conductors Note: Not suitable for shielded cables Measurement values True RMS display Max. rated voltage to earth 600 Vrms AC Circuit dynamics Crest factor 1.8 (sine wave only at 600 V range) Temp. characteristics 0.05% rdg./°C Effect of conductor diameter 0.5% rdg. (add to measurement accuracy for 38 to 100 mm2 insulated cables) Effect of nearby conductors ±5% rdg. or less Effect of external magnetic fi eld none Display 4200 counts, with less than 10 counts zero-suppressed Display refresh rate Approx. once every 0.6 seconds Display response time 2.4 s or less Functions Data Hold, Auto Power Shutoff, Low-Battery Warning Operating temp. & humidity 0 to 40°C, 80% RH or less, non-condensating Storage temp. & humidity -10 to 50°C, 80% RH or less, non-condensating Operating environment Indoors, up to 2000 m ASL Applicable standards Safety: EN61010, EMC: EN61326 Power source 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 fi ve-minute operations Max. rated power 2 V A Size and weight 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) ■ Model 3258 Specifi cations (accuracy guaranteed for one year at 23 ±5°C and 80% RH or less) ❏ HiTESTER 3258 measurement principle Measurements with traditional non-metallic-contact voltmeters and phase detectors depend on the coupling capacitance (C 1 and C 2) 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 = Vm 2 - Vm1) problematic. The SAFETY HiTESTER 3258 employs a new technological principle to detect accurate measurement voltage (Vm) independent of coupling capacitance. Supplied Accessory: soft case AC Voltage Measurement Accuracy (on insulated PVC cables or equivalent, 100 mm or larger) Ranges (auto-ranging) Displayable range Display resolution Range of guaranteed accuracy Accuracy 40 to 66 Hz 66 to 400 Hz
600 V 380 to 600 V 1 V
380 to 480 V ±2.0% rdg. ±5 dgt. 481 to 600 V ±5.0% rdg. ±5 dgt.