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PIE334Plus : 4-20 mA เครื่องสอบเทียบสัญญาณกระแสไฟฟ้า, Source และ Read, ฟังก์ชั่นทดสอบกระแสรั่วไหลในลูปกระแส
ข้อมูลสินค้า
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รหัสสินค้า
PIE334 Plus
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เข้าชม
391 ครั้ง
ยี่ห้อ
PIE
รุ่น
PIE334 Plus
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แก้ไขล่าสุดเมื่อ
29/03/2022 11:07
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รายละเอียดสินค้า
PIE334Plus : 4-20 mA เครื่องสอบเทียบสัญญาณกระแสไฟฟ้า, Source และ Read, ฟังก์ชั่นทดสอบกระแสรั่วไหลในลูปกระแส
Automated Milliamp Loop Calibrator ▪ Easy to use With the PIECAL 334Plus you can check, calibrate and measure all your current signal instruments in a 4 to 20 milliamp DC loop. It can be used at any access point in your loop. Source & Read 0.000 Simulate a 2 Wire Transmitter or use the PIECAL simultaneously power your 2 Wire Transmitter and to 24.000 mA, 334Plus to measure its output. ▪ Easy to read Turn on backlight & easily see the display in dark areas of the plant. ▪ Troubleshoot loop problems Quickly diagnose ground fault and current leakage with the patented loop diagnostic technology (US Patent# 7,248,058). ▪ Source milliamps Calibrate recorders, digital indicators, stroke valves or any instruments that get their input from a 4 to 20 mA loop. Easily set any value quickly to within 0.001 mA with the adjustable digital potentiometer “DIAL” or use preset 4.000 mA (0.00%) and 20.000 mA (100.00%) EZ-CHECK™ settings. ▪ Automatic output stepping & ramping Press & hold the dial to automatically step from 4 to 20 in 2, 3 or 5 steps or choose a continuous ramp. ▪ Calibrate using loop power Check loop wiring and receivers by using the PIECAL 334Plus in place of a 2 Wire transmitter. Uses any loop power from 2 to 100 V DC ▪ Read loop current Check controller outputs or measure the milliamp signal anywhere in the loop. The PIECAL 334Plus measures 0.000 to 52.000 mA (-25.00 to 300.00%) signals with greater accuracy than a typical multimeter. ▪ Power & measure 2 wire transmitters The PIECAL 334Plus can simultaneously output 24V DC to power any and all devices in a process loop using the internal batteries and internal switching power supply, while measuring the output of a 2 Wire Transmitter and any other loop devices. Powers HART™ transmitters with built-in 250 ohm resistor simplifying hookups with HART communicators. ▪ Read DC volts The PIECAL 334Plus can measure from -99.99 to +99.99 VDC with 0.01 Volt resolution. Use it to check loop power supplies, I/V converters, 1 to 5 Volt signals, and other voltages making it unnecessary to carry a multimeter. ▪ Evolutionary design PIECAL Calibrators are designed and built by members of the same team that designed and built the calibrators manufactured by Fluke* under the Altek* label. The PIECAL 334Plus improves upon other brands by including a rubber boot, tilt stand, backlit display with larger digits, rugged switches and a battery compartment for fast battery changes. Ground Leak Detection Have you ever replaced a “faulty” transmitter only to find the problem was somewhere else in the loop? And did you end up throwing the transmitter away after you fixed the other problem “just in case” the transmitter was faulty? If you find a loop where the transmitter is calibrated correctly but all the readings elsewhere in the loop have a fixed offset this is due to a Zero Shift. This zero shift is typically caused by some current in the loop bypassing the transmitter. This might be caused by ground faults, moisture or corrosion. If you have some loops that are erratic after it rains there may be moisture present in a junction box or where insulation has broken down. Turn on Ground Leak Detection and use the PIECAL 334Plus to power up the loop. Any current that isn’t controlled by the transmitter or other current control element will be indicated as leakage on the PIECAL 334Plus display. The PIECAL 334Plus powers up the 2-Wire transmitter or loop and indicates the total current and the uncontrolled current. This provides information useful in troubleshooting loop errors. mA OUT, % OUT (Percent of 4 to 20 mA) Find current leaks in loops caused by ground faults, moisture or corrosion. The 334Plus simultaneously supplies power to a 2 Wire Transmitter (or loop with a transmitter) while displaying the 4 to 20 mA output and the amount of current leaking in the loop. 1) Disconnect one or both input wires from the device to be calibrated. 2) Select “mA” or “% 4 to 20mA” with slide switch q. 3) Select “SOURCE” using slide switch w. 4) Turn the knob r clockwise several times until full scale output (>24.000 mA/125.00%) The display will indicate “PWR MEASURE” and “LEAKAGE:” 5) Connect the red source lead of the PIECAL 334Plus to the plus (+) input of the device and the black source lead to the minus (-). The PIECAL 334Plus supplies a nominal 24 volts DC at 24 mA to the 2 Wire Transmitter or loop. The current passed by the transmitter will be accurately displayed by the PIECAL 334Plus along with an indication of leakage current at the bottom of the display. If there is an uncontrolled loop, a transmitter with upscale burnout, bad or missing sensor or a short the display shows “iLOOP > 24mA” Note: Many installed transmitters will normally indicate 0.01 to 0.10 mA leakage without significant control problem. Unstable readings may indicate loose connections or the presence of moisture. Warranty Our equipment is warranted against defective material and workmanship (excluding batteries) for a period of three years from the date of shipment. Claims under warranty can be made by returning the equipment prepaid to our factory. The equipment will be repaired, replaced or adjusted at our option. The liability of Practical Instrument Electronics (PIE) is restricted to that given under our warranty. No responsibility is accepted for damage, loss or other expense incurred through sale or use of our equipment. Under no condition shall Practical Instrument Electronics, Inc. be liable for any special, incidental or consequential damage. PIECAL 334Plus Specifications (Unless otherwise indicated all specifications are rated from a nominal 23°C, 70% RH for 1 year from calibration) 1These are internal calibrated cardinal reference points and accuracy is not defined or limited by display resolution Accessories INCLUDED: Rubber boot, 2 Pocket hands free carrying case, Four “AA” Alkaline batteries, Certificate of Calibration, Attached Test Leads with Alligator Clips OPTIONAL: MAGNET STRAP Part No. 020-0236 AC ADAPTOR (200 to 240 VAC) Part No. 020-0100 AC ADAPTOR (100 to 120 VAC) Part No. 020-0101 Ni-MH 1 Hour Charger with 4 Ni-MH AA Batteries Part No. 020-0103 (100-120 V AC input for North America Only) (100-120 V AC input for North America Only) Additional Information PIE Calibrators are manufactured in the USA. This product is calibrated on equipment traceable to NIST and includes a Certificate of Calibration. Test Data is available for an additional charge. Practical Instrument Electronics recommends a calibration interval of one year. Contact your local representative for recalibration and repair services.