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For sale is a brand new, microprocessor controlled, highly stable, lab grade variable DC power supply from Mastech, Model number HY3020MR. HY3020MR is one of the most stable and powerful DC power supply from Mastech. This high quality power supply has two levels of control over both current and voltage outputs (coarse and fine), with outputs digitally adjustable at 0-30V DC and 0-20A. The unit comes with 2 bright LED displays, providing accurate and clearly visible readout for the voltage and current value, both in well-lit and dark environment. LED displays are much brighter nowadays, more durable than LCD displays; for this reason they are the new trend in the instrument panels. This unit has toggle switch at the back that allows you to operate it in 110V AC or 220V AC. The digtial control and keypad entry allows easier adjustment and better control for set point, as well as better stability and accuracy for the output. What's more, you can also use the software included to control this power supply via the RS232 port with a computer. Retails well over $600. Please
email us with any questions, our hard-working staff will answer every email in no time!
Why buy from us?
#1: We have been on eBay for over 8 years and continue to thrive, because we take good care of our customers. We won't rest until you are satisfied, so you can rest assured that you will be treated well.
#2: Mastech is well established brand, and we are the only authorized distributor of Mastech power supplies selling on eBay. We only deal with Mastech power supplies, and buy in large quantities directly from the manufacturer and pass the savings to you. We keep the widest selections of DC power supplies so you can get exactly what you need.
#3: We know the product inside and out. While other sellers maybe here for a quick buck, we want to build satisfied customer base and a sustainable business by providing warranty services and technical support.
Features & Specifications:
Advanced microprocessor control, keypad entry for both current and voltage outputs
Output can be controlled by PC using RS232 ports (software included)
Two level of control for both current and voltage outputs: coarse and fine for ease of use
Adjustable outputs: 0-30 V and 0-20 A
Input voltage: 110V AC and 220V AC switchable
Line regulation: CV <= 0.02% + 3 mV, CC <= 0.5% + 3 mA
Load Regulation: CV <= 0.02% + 10mV, CC <= 0.5% + 10 mA
Ripple noise: CV <= 10 mV RMS, CC <= 10 mA RMS
Protection: constant current and short-circuit protection
LED reading accuracy: +/-1% for voltage and +/-2% for current
Environment: 0-40C, relative humidity < 90%
Size: 12" x 10" x 6"
Weight: 12 lbs
Warranty: 1 year.
Terms:
Shipping: Buyer Pays $25 for shipping and handling, add $3.00 if you need shipping insurance. California residents please add 7.25% for state sales tax. We will combine shipping whenever possible to provide savings for you, even when not possible, we will still try to provide discounts for you if you buy multiple items.
Payment
We recommend buying shipping insurance. We accept the following forms of payment: PayPal, Visa/MasterCard, and American Express. PayPal payment should be sent to evan2002@vendio.com, please make sure your shipping address is confirmed. Buyers paying by credit card please email evan2002@vendio.com or call (408)859-5137.      
I accept the following forms of payment:
Shipping & Handling
$25.00 FedEx Ground®
Additional Information
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