Máy phát điện áp và dòng chuẩn FLuke 707 Fluke 707 Loop Calibrator with Quick Click Knob
Máy phát điện áp và dòng chuẩn FLuke 707 Tính năng Máy phát điện áp và dòng chuẩn Fluke 707 Large display and simple, quick-click interface for easy one-handed operation. Simultaneous mA and % readout for quick, easy interpretation of readings. mA accuracy of 0.015%, superior to other loop calibrators in this price range. 1 µA resolution for mA source, simulate and measure. Push button 25% steps for fast, easy linearity checks. 0-100% “span check” for fast confirmation of zero and span. Selectable slow ramp, fast ramp, and step ramp to provide smooth outputs for valve slewing and loop functional tests. 24 volt internal loop supply, so you can power and read a transmitter at the same time without carrying a DMM. Measures V dc to 28 V. Single 9V battery that is easily changed without braking calibration seal 0 – 20 mA or 4 – 20 mA default start up modes. Innovative output adjustment dial with 1 µA and 100 resolution. HART ™ mode connects 250 Ω resistor in series with 24 V loop for compatibility with HART communicators. Thông số kỹ thuật Máy phát điện áp và dòng chuẩn Fluke 707
Specifications Current Measurement Range: 0 to 24 mA Resolution: 0.001 mA Accuracy: 0.015% Rdg + 2 LSD
Current Sourcing Range: 0 to 20 mA or 4 to 20 mA Accuracy: 0.015% Rdg + 2 LSD Drive Capability: 1200 Ω; 950 Ω at 20 mA in HART mode
Current Simulation Range: 0 to 20 mA or 4 to 20 mA Accuracy: 0.015% Rdg + 2 LSD Ext. loop voltage requirement: 12-30 V
Loop Power Voltage measurement Range: 0 to 28 V DC Resolution: 1 mV Accuracy: 0.015% Rdg + 2 LSD
Environmental Specifications Operating Temperature Storage Temperature Humidity (Without Condensation) 0 to 90% (0ºC to 35ºC); 0 to 70% (35ºC to 55ºC)
Temperature Coefficient -10ºC to 18ºC, 28ºC to 55ºC, ±.005% of range per ºC
Safety Specifications Safety CSA C22.2 No. 1010.1:1992
EMC EN50082-1:1992 and EN55022:1994 Class B
Maximum voltage
Mechanical & General Specifications Size Weight 224 g (340 g including holster)
Batteries Warranty Shock & Vibration per MIL-T-28800 for a Class 2 Instrument
Display current and % of span Auto step, auto ramp Span Check
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