1. Simultaneous mA and % readout ;
2. Measures V dc to 28 V;
3. 24 volt internal loop supply;

 

 

 

       Loop Calibrator-YHS707

 

We can provide OEM Service for customers completely

Features 

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 0.025%, 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.Specifications

Current Measurement	Range:	0 to 24 mA
	Resolution:	0.001 mA
	Accuracy:	0.025% Rdg + 2 LSD
Current Sourcing	Range:	0 to 20 mA or 4 to 20 mA
	Accuracy:	0.025% 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:	0.025% 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    -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

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(YHS-707) , One 9V battery

Warranty                   Two 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