EX2020R直流穩(wěn)壓電源,英國tti EX2020R價格：Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 20V/20A Single...

EX2020R直流穩(wěn)壓電源,英國tti EX2020R價格：
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 18V/10A Single

• Single outputs, 35V/, 18V/10A, 42V/10A, 20V/20A
• Dual or triple outputs, 35V/4A
• Independent digital voltage and current meters for each output with 4 digit resolution
• Switchable local or remote sensing
• Constant voltage or constant current operation
• Variable 1.5 - 5.0V auxiliary output at (EX354RT)
• Compact design uses less bench space
• Silent fan-free cooling (not EX202R/EX4210R)
• DC output switches, automatic mode indication
• RS232 or USB controlled models available (35V/ single)
• Multi-mode dual model 2x(75V/2A) or 75V/4A or 150V/2A

EX2020R直流穩(wěn)壓電源,英國tti EX2020R價格：
Power, Precision, Simplicity The EX-R series has been extended by incorporating models from the best selling EX series. By adding four digit meters and switchable remote sensing, the EX-R series offers much higher precision whilst retaining the simplicity of operation which many bench-top power supply users prefer.

Six models are offered including single, dual and triple outputs and covering a power range of 175 watts up to 420 watts. Models EX2020R直流穩(wěn)壓電源,英國tti EX2020R價格：
TECHNICAL SPECIFICATIONS

OUTPUT
Voltage/Current Ranges
EX355R	0 to >35V; 0 to > (175W nominal power)
EX1810R	0 to >18V; 0 to >10A (180W nominal power)
EX2020R	0 to >20V; 0 to >20A (400W nominal power)
EX4210R	0 to >42V; 0 to >10A (420W nominal power)
EX354RD	2 x (0 to >35V; 0 to >4A) (280W nominal power)
EX354RT	2 x (0 to >35V; 0 to >4A) plus <1.5 to >5.0V @ (305W nominal power)
Output Setting & Control
Voltage Setting	By coarse and fine controls
Current Setting	By single logarithmic control
Output Mode	Constant voltage or constant current with automatic cross-over. CC indicator in constant current mode.
Output Switch	Electronic, non isolating. Preset voltage and current limit displayed when Output off
Output Performance
Ripple & Noise	Typically < 2 mV rms , <10mV pk-pk , (EX355R, EX354RD, EX354RT) Typically <2 mV rms, <20mV pk-pk (EX1810R, EX2020R, EX4210R) CV mode, 20MHz bandwidth
Load Regulation	<0.01% of maximum output for a 90% load change (using remote sense)
Line Regulation	<0.01% of maximum output for 10% line change
Transient Response	<200us to within 50mV of setting for a 5% to 95% load change
Temp. Coefficient (Voltage)	typically <100ppm/°C
Output Protection
Output Protection	Outputs will withstand forward voltages up to 40V (EX355R, EX354RD,& EX354RT); 22V (EX1810R); 25V (EX2020R); 48V (EX4210R). Reverse protection by diode clamp for currents to 3A.
Output Connections
Output Terminals	Universal 4mm safety binding posts on 19mm (0.75") spacing. Terminals can accept fixed shroud 4mm plugs, standard 4mm plugs, fork terminals and bare wires.
Remote Sense
Sense Selection	Voltage sensing is selected as Local or Remote by front panel switch
Sense Terminals	Sprung loaded screw-less terminals

METER SPECIFICATIONS
Display Type	Dual 4-digit meters, 14mm (0.56") LED
Voltage Meter
Resolution	10mV
Accuracy	0.3% of reading +/- 3 digits
Current Meter (EX355R,EX354RD, EX354RT)
Resolution	1mA
Accuracy	0.5% of reading +/- 3 digits
Current Meter (EX1810R, EX2020R, EX4210R)
Resolution	10mA
Accuracy	0.6% of reading +/- 3 digits

AUXILIARY OUTPUT (E X354 RT only)
Voltage	Variable <1.5V to >5V by front panel control
Meter accuracy	0.3% +/- 4 digits
Current limit	5 A minimum.
Load regulation	< 0.5 % for 90% load change
Line regulation	<0. 1 % for 10% line voltage change
Ripple & Noise	Typically < 2 mV rms, <10 mV pk-pk (20MHz bandwidth)
Output Protection	Output will withstand up to 7V forward voltage. Diode clamp reverse protection for currents up to 3A.
Output Terminals	Universal 4mm safety binding posts on 19mm (0.75") spacing
Status Indication	UNREG lamp

GENERAL
AC Input
EX354RD, EX354RT	110V to 240V 50/60Hz (universal input). Installation Category II
Other Models	230V AC +/- 10% 50/60Hz; 115V to order. Installation Category II
VA Ratings
EX810R, EX355R	400VA
EX354RD, EX354RT	500VA
EX2020R, EX4210R	800VA
Temperature & Environmental
Operating Range	+5°C to +40°C, 20% to 80% RH
Storage Range	-40°C to + 70°C
Environmental	Indoor use at altitudes up to 2000m, Pollution Degree 2
Cooling
EX1810R, EX355R, EX354RD, EX354RT	fan-less convection cooling
EX2020R, EX4210R	fan assisted using low-noise brushless dc fan
Safety & EMC
Safety	Complies with EN61010-1
EMC	Complies with EN61326

PHYSICAL
Size
Single output models	140x160x320mm (WxHxD)
Dual and triple output models	260x160x 320 mm (WxHxD)
Weight
EX810R, EX355R	3.0kg
EX2020R, EX4210R	3.6kg
EX354RD, EX354RT	4.3kg

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