DC POWER SUPPLY

DC power supply Economical Type

SR3313TFL & SR3315TFL Regulated DC Power Supply

Detailed:

Has a master-slave tracking, constant voltage, constant current function, steady flow automatically converted, the state will not use any external damage.

Specification	Range
Model	SR3313TFL	SR3315TFL
Output Voltage	0~30V	0~30V
Output Current	0~3A	0~5A
Overload Effect	1x 10-4+2mV
Ripple & Noise	≤0.3mVrms
Regulation	CV: 20mV (Typical ), CC: 50mA (Typical )
Indication Method	LED display also shows the voltage and current values
Reliability	MTBF (e): ≥2000 hours
Feature	Current Limitation, Auto Switching Between Voltage and Current Operation.
General Characteristics
Power	Input Voltage: 110VAC / 220VAC; Frequency: 40Hz~60Hz
Product Color	White and Gray
Product Net Weight	2.8 Kg
Product Size (W×H×D)	105mm ×160mm × 240mm
Standard Accessories	Power Cord
Standard Individual Packing	Gift Box, English Manual
Standard Quantity Per Carton	6 PCs
Standard Carton Measurement (W×H×D)	530mm × 315mm × 485mm (0.056 CBM Per Export Carton)
Standard Carton Gross Weight	20 Kg

SR1730SL1A, SR1730SL2A, SR1730SL3A, SR1730SL5A

Product Information

SUMMARIZE:
The DC Power supply is automatic constant-voltage/constant-current transfer type of power supply with display meter(3-1/2 digits, liquid crystal display) or electrical point meter. Output constant voltage is adjusted 0-30V and output constant current is 5A,0-1A/2A/3A/5A It is output type have one, two and two with fixed 5V3A.The output can
be connected in parallel or series to get multiple output currents or voltages.
APPLICATION:
Scientific research, educational institutions factory and electronics electrical equipment repairs etc.
MAIN FUNCTION:
1. Output constant current adjustable.
2. Output constant voltage adjustable.
3. LED display.
4. Limited current protection.
5. Short circuit protection.
CHARACTERISTIC:
Input voltage:220VAC +/- 10%
Output voltage:0-30VDC;fix 5V3A
Output current:0-1A/2A/3A/5A.
Frequency: 50Hz +/- 2Hz
Usage area: scientific research, educational institutions, factory and electronics, electrical equipment repairs, ets.
DIMENSIONS AND WEIGHT:
Model:SR1730SL1A-5A
Qty: 4 PCS
Package: dimension: 425x385x595mm
Display: 1×LED
G.W.:24/26/29/32kgs

DC power supply Industrial Type

SR3704S DC power supply

Features		Range
Model		SR3704S
Output Voltage	Ch1, Ch2	0~32V
	Ch3	5V
Output Current	Ch1, Ch2	0~3A
	Ch3	2A
Overload Effect		CV ≤ 1 x 10^-4 +2mV, CC ≤ 2mA
Ripple & Noise		CV ≤ 1mVrms, CC ≤ 1mArms
Regulation		CV…...........20mV (Typical value), CC…...........50mV (Typical Value)
Mutual effect		CV…...........5 x 10^-5 +1mV, CC…..........<0.5mA
Tracking Error		5 x 10^-3 +2mV
Indication method		Digital display, and display the voltage and current value
Feature		Voltage, current automatic conversion, the current limit protection
Ch3		Output voltage: 5V, Output Current: 0~2A, Ripple and noise: <3mV.
Reliability		MTBF (e): ≥2000 hours
Other Features		Triple Output, Series or Parallel Operation, Current Limitation, Auto Switching Between Voltage and Current Operation
GENERAL CHARACTERISTICS
Power		220V ± 10%, 50Hz ± 4%
Working Environment		0°C~+40°C, -5°C~+40°C
Product Color		White and Gray
Product Net Weight		About 4 kg
Product Size		210152305mm
Standard Accessories		Test Lead, Power cord
Standard Individual Packing		Gift Box, English Manual
Standard Quantity Per Carton		2 pcs
Standard Carton Measurement		600380245mm (0.056 CBM Per Export Carton)
Standard Carton Gross Weight		9.5 kg

SR3705S DC power supply

Features		Range
Model		SR3705S
Output Voltage	Ch1, Ch2	0~32V
Output Current	Ch1, Ch2	0~5A
Overload Effect		CV ≤ 1 x 10^-4 +2mV, CC ≤ 2mA
Ripple & Noise		CV ≤ 1mVrms, CC ≤ 1mArms
Regulation		CV…...........20mV (Typical value), CC…...........50mV (Typical Value)
Mutual effect		CV…...........5 x 10^-5 +1mV, CC…..........<0.5mA
Tracking Error		5 x 10^-3 +2mV
Indication method		Digital display, and display the voltage and current value
Feature		Voltage, current automatic conversion, the current limit protection
Ch3		Output voltage: 5V, Output Current: 0~2A, Ripple and noise: <3mV.
Reliability		MTBF (e): ≥2000 hours
Other Features		Triple Output, Series or Parallel Operation, Current Limitation, Auto Switching Between Voltage and Current Operation
GENERAL CHARACTERISTICS
Power		220V ± 10%, 50Hz ± 4%
Working Environment		0°C~+40°C, -5°C~+40°C
Product Color		White and Gray
Product Net Weight		About 4 kg
Product Size		210152305mm
Standard Accessories		Test Lead, Power cord
Standard Individual Packing		Gift Box, English Manual
Standard Quantity Per Carton		2 pcs
Standard Carton Measurement		600380245mm (0.056 CBM Per Export Carton)
Standard Carton Gross Weight		9.5 kg

SR1732A DC power supply

Features:

1. Three channels output, two adjustable, one fixed;

2. Four LED indicated two channels of output voltage and current value each;

3. Two adjustable output has constant voltage and currant and auto-switched;

4. Current-limit protection and the limit point can be adjustable optionally;

5. Two channels of output voltage can be in series or parallel arbitrarily, and track voltage and current (in parallel) with master power;

6. Overload and short circuit protection.

Specifications:

Model	SR1732A 2A			SR1732A 5A
	Master	Slave	Fix	Mater	Slave	Fix
Output voltage	0~30V		5V	0~30V		5V
Output current	0~2A		2A	0~5A		5A
Load effect
CV	5 x 10^-4 + 2mV			5 x 10^-4 + 2mV
CC	20mA			20mA
Source effect
CV	1 x 10^-4 + 0.5mV			1 x 10^-4 + 0.5mV
CC	1 x 10^-3 +5mV			1 x 10^-3 + 5mV
Ripple and noise
CV	1mVrms			1mVrms
CC	1mArms			1mArms
Display accuracy	± 1% + 2 word			± 1% + 2 word
Work temperature	0°C~40°C
MTBF Reliability	≥2000h
Power voltage	AC 220V ± 10%, 50Hz ± 5%
Mechanic characters
Dimension	160H270W320D (mm)
Weight	About 8KGS			About 9KGS

SR3300 series Programmable Linear DC Power Supply

Features:

● Three groups of independent output: Two groups of 0-30V adjustable voltage value and a set of fixed voltage value 2.5V, 3.3V and 5V (optional).

● Four groups of LED display: Minimum resolution 1mV/1mA or 10mV/10mA.
● Digital panel control (rotary coding switch), coarse / fine / volume control.
● Three output modes: independent, series and parallel which can be selected by Switch on the front panel.
● Tracking serial / parallel mode: in tracking mode, output of CH1 and CH2 are automatically connected into series or parallel. In Series mode, it will be double output voltage; In Parallel mode, it will be double output current.
● Five groups of Save / Recall, Lock, output ON/OFF, and intelligent temperate-control fan.
● Constant voltage / constant current: in addition to CH3, each output channel is with complete transistor and performance converter and in the mode of constant voltage source and constant current source.

Specifications:

Item\ Model		SR3303			SR3305
Output	Channel	CH1	CH2	CH3	CH1	CH2	CH3
	Voltage	0~30V	0~30V	2.5/3.5/5.0V	0~30V	0~30V	2.5/3.5/5.0V
	Current	0~3A	0~3A	3A (fixed)	0~5A	0~5A	3A (fixed)
Fix voltage mode	Fluctuation Ratio	Voltage fluctuation ratio ≤ 0.01% +3mV
		Load variation rate ≤0.01% + 3mV (rated current≤3A) ≤0.02% + 5mV (rated current>3A)
	Ripple & noise	≤1mVrms (5Hz~1MHz)
	Recovery time	≤100IS (Load change in 50%, the minimum load 0.5A)
	Temperature Coefficient	≤300ppm/°C
	Output range	0~setting voltage Continuously adjustable
Fix current mode	Fluctuation ratio	Current fluctuation ratio ≤0.2% + 3mA
		Load variation rate ≤0.2% + 3mA
	Ripple current	≤3mArms
	Output range	0~setting current Continuously adjustable
Trace mode	Parallel Collection	Power Supply fluctuation ratio ≤0.01% + 3mV
		Load variation rate ≤0.01% + 3mV (rated current ≤3A) ≤0.02% + 5mV (rated current >3A)
	Series Connection	Power Supply fluctuation ratio ≤0.01% + 5mV
		Load variation rate ≤300mV
		tracking error ≤0.5%+/-10mV (10~30V no load, in case of load plus load variation) ≤0.5%+/-30Mv (0~9.99Vno load, in case of load plus load variation)
	Tracking error	≤0.5%+/-10mV			≤0.5%+/-50mV
Panel Meter	Display	Voltage: 2 3/4, 0.4” LED			Voltage: 2 3/4 , 0.4” LED
		Current: 3 3/4, 0.4” LED			Current: 2 3/4 , 0.4” LED
	Resolution ratio	Voltage:10mV			Voltage: 10mV
		Current:10mA			Current: 10mA
	Programming precision (25 +/-5°C)	Voltage: +/-(0.03% reading + 10digits)			Voltage: +/-(0.5% reading + 2digits)
		Current: +/-(0.3% reading + 10digits)			Current: +/-( 0.5% reading + 2digits)
	Reading precision (25 +/-5°C)	Voltage: +/-(0.03% reading + 10digits)			Voltage: +/-(0.5% reading + 2digits)
		Current: +/-(0.3% reading + 10digits)			Current: +/-( 0.5% reading + 2digits)
CH3	Output voltage	(2.5V/3.3V/5V)+/-8%
	Output current	3A			5A
	fluctuation ratio (25 +/-5°C)	Voltage change rate≤0.01% + 3mV			Voltage change rate≤0.01% + 3mV
		Load variation rate≤0.01% + 3mV			Load variation rate≤0.01% + 3mV
	Ripple & noise	≤2mVrms (5Hz~1MHz)			≤1mVrms (5Hz~1MHz)
Key lock	Yes
Save/Recall	5 groups
Power voltage	AC 100V/120V/220V/230V+/-10%, 50/60Hz
Size& weight	250(W) 150(H) 310(D) mm; 7kg

( If you need user manual or E-catalogue for above meters, please ask for at: xiushunjie@163.com )