QLS2800 Functional Signal Generator/Signal Source/Frequency Meter/Counter/Pulse Generator/Band Communication

Name: QLS2800 Functional Signal Generator/Signal Source/Frequency Meter/Counter/Pulse Generator/Band Communication
Brand: Generic
SKU: 1598184
Price: 84.59 USD
Availability: InStock

$84.59

Availability: In Stock

Shipping: Free Airmail

Estimated Delivery:

Model

Clear

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Handling Time

Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

Shipping Methods

You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

Delivery Time

Airmail and Airmail Registered	Area	Estimated Delivery Time
	United States, Canada	7-25 business days
	Australia, New Zealand, Singapore, United Arab Emirates	10-25 business days
	United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland	10-25 business days
	Italy, Brazil, Russia, South Africa	10-45 business days
	Other countries	10-35 business days
Expedited Shipping	3-10 business days to Worldwide

Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

Returns & Refund

Last updated October 05, 2022

Returns

If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

Return Process

To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

Alex NLD
Attn: Returns
RMA #
HaGiborim St 8
Tiberias, 14388
Israel

Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

Refunds

After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

Exceptions

If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

Please provide us with following:

1. Photos of the front and back sides of the packaging box;
2. A photo, video or screenshot of the defective item or the defective part of the parcel.

Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

Warranty & Repair service

If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team and the problem is acknowledged, you can send the items back to us for a repair.

Note: Please be aware, we do not cover the cost of the returns fees in warranty & repair service.

Order Cancellation

If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

Questions

If you have any questions concerning our return policy, please contact us at:

+972 054-536-2888
sales@alexnld.com

NOTE:Type1:QLS2802S-2M Type2:QLS2805S-5M

Features:

1.Using direct digital synthesis (dds) technology, fpga design, ultra-low power consumption;

2.A single dc5v power adapter power supply, easy to carry;

3.Using 2.4 inch tft true color LCD screen, with variable function buttons and rotary encoder, greatly enhanced the ease of use of the machine;

4.Basic function waveforms such as sine wave, triangle wave, square wave, sawtooth wave, and pulse wave with adjustable duty cycle;

5.The output signal frequency can be as small as 0.01 Hz;

6.There are 10 sets of parameter storage bits of m0~m9, and the data of m0 is automatically called up when booting;

7.The waveform frequency resolution is at least 0.01Hz, and the amplitude resolution is at least 10mV;

8.With manual trigger, external trigger two trigger mode, can make the machine output 1~999999 arbitrary pulse Rushing

9.The pulse wave duty cycle adjustment is accurate to 0.5%;

10.Frequency scanning with an end point;

11.With frequency measurement, counting function;

12.All parameters can be calibrated by internal procedures;

13.Powerful communication functions, completely open communication protocol, making secondary development very simple;

14.After connecting with the PC, can use the pc to control the instrument

Specification:

project		parameter
Main characteristics	Frequency Range	Sine wave	QLS2802S: 0Hz~2MHz QLS2805S: 0Hz~5MHz
		Square wave	0Hz~2MHz
		Triangle wave	0Hz~2MHz
		Sawtooth wave	0Hz~2MHz
	Output modulation	Frequency scanning, bursting
	Waveform type	Sine wave, square wave, triangle wave, sawtooth wave
	Frequency error	±8×10-6
	Frequency stability	±5×10-6
	Amplitude range (peak-to-peak)	10mVp-p~10Vp-p;
	Output impedance	50Ω±10%
	Amplitude resolution	10mVp-p
	Amplitude stability	±0.5% (every 5 hours)
	Amplitude error	± 1% + 10mV (frequency 1KHz, 8 Vp-p)
	Offset range	-100%~+100%
Sine wave	Harmonic resistance system	40dBc(<1MHz) ,35dBc(1MHz~5MHz)
	Distortion	<0.8%(20Hz~20KHz)
Square wave	Lifting time	≤28ns
	Overshoot	≤10%

	Duty cycle adjustment range	0.1%~99.9%
TTL/CMOS	Lifting time	≤28ns
	Low level	<0.3V
	High level	1V~5V
Sawtooth wave	Duty cycle >50.1%	Rising sawtooth
Sawtooth wave	Duty cycle <49.9%	Sawtooth wave
scanning	Scan mode	Sweep
	Scan time	0.1S~999.9S
	Scanning range	0-Max.Freq
External measurement function	Frequency measurement range	0.01Hz~60MHz
	Minimum input voltage	0.5Vp-p
	Maximum allowable input voltage	10Vp-p
	Counting range	0~4294967295
	Counting method	Manual
	Source selection	Ext.IN input (analog signal)
storage	Quantity	10
storage	position	M0 to m9
interface	Interface mode	Use usb to serial interface
	Communication rate	57600 bps
	Protocol	Using the command line, the agreement is open
power supply	DC	5V
size	Length × width × height	170×200×70mm
weight	Stand-alone	518g