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
While measuring mA, 24 V
Voltage measurement
Range: 0 to 28 V DC
Resolution: 1 mV
Accuracy: 0.015% Rdg + 2 LSD

Environmental Specifications
Operating Temperature
-10ºC to 55ºC
Storage Temperature
-30ºC to 60ºC
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
30V

Mechanical & General Specifications
Size
152 x 70 x 41 mm
Weight
224 g (340 g including holster)
Batteries
One 9V battery Alkaline
Warranty
1 years
Shock & Vibration
per MIL-T-28800 for a Class 2 Instrument
Display current and % of span
Yes
Auto step, auto ramp
Yes
Span Check
Yes