Loop Calibrator YHS-717

Place of Origin	China
Model Number	YHS-717

Delivery Time:According to customers' need.
Certification:CE
Loop Calibrator YHS-717

features

The fast, one-handed tool for loop checks. Just click to calibrate.

This feature-rich solution combines the best features push-button and knob-base loop calibrator and offers:

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:	0.02% Rdg + 4 LSD
Current Sourcing	Range:	0 to 20 mA or 4 to 20 mA
	Accuracy:	0.02% Rdg + 4 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:	0.02% Rdg + 4 LSD
	Ext. loop voltage requirement:	?12-30 V
LoopPower	?While measuring mA, 24 V
Voltage measurement	Range:	0 to 28 V DC
	Resolution:	1 mV
	Accuracy:	0.02% Rdg + 4 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?? ????????????????a group of large capcity Lithium Battery (7.4V)

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