Máy phát điện áp và dòng chuẩn FLuke 705

Tính năng máy phát điện áp và dòng chuẩn Fluke 705
Low cost calibrator muscle.
For a powerful loop calibrator at a very affordable price, choose the new Fluke 705 Loop Calibrator. This feature-rich solution to loop calibration, maintenance and repair offers:

A large display and simple, pushbutton interface for ease of use.
Simultaneous mA and % readout for quick, easy interpretation of readings.
mA accuracy of 0.02%
Push button 25% steps for fast, easy linearity checks. Save time over traditional knob type controls.
“Span Check” for fast confirmation of zero and span.
Selectable slow ramp, fast ramp, and step 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.
Single 9V battery that is easily changed.
0 – 20 mA or 4 – 20 mA default start up modes.
Thông số kỹ thuật máy phát điện áp và dòng chuẩn Fluke 705

Specifications
Current Measurement
Range: 0 to 24 mA
Resolution: 0.001 mA
Accuracy: 0.02% Rdg + 2 LSD
Current Sourcing
Range: 0 to 20 mA or 4 to 20 mA
Accuracy: 0.025% Rdg + 2 LSD
Drive Capability: 1000 Ω @ 24 mA
Current Simulation
Range: 0 to 20 mA or 4 to 20 mA
Accuracy: 0.025% 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: 0.025% Rdg + 2 LSD

Environmental Specifications
Operating Temperature
-10 ºC to 55 ºC
Storage Temperature
-40 ºC to 60 ºC
Humidity (Without Condensation)
0 to 90% (0 ºC to 35 ºC); 0 to 70% (35 ºC to 55 ºC)
Temperature Coefficient
-10 ºC to 18 ºC, 28 ºC to 55 ºC, ±.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
30 V

Mechanical & General Specifications
Size
152 x 70 x 41 mm
Weight
340g
Batteries
One 9V battery
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