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TTI | EX354RT

Triple outputs DC power supply, mode mixed linear/switching, 305W, 2x 35V/4A + 1x 5V/5A

TTI
Reference : TTIEX354RT
Serie : EX
Purchase Order Reference : EX354RT
Brand : TTI
Alimentation DC triple. technologie mixte linéaire/découpage
Puissance de sortie: 305W.
Deux sorties isolées: 0-35 V / 0-4A.
1 sortie auxiliaire: 1.5-5V / 5A.
Affichage numérique de la tension et du courant de chaque sortie avec 4 chiffres de résolution.
Fonctionnement à tension ou courant constants.
Compacte et légère avec faible dissipation thermique.
Commutateur sur la sortie.
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Details
Thurlby Thandar  EX354RT


 

Simplicity in use
EX-R series power supplies use classic analog controls for voltage and current.
The large and bright displays have a fixed resolution to avoid confusion.
Preset voltage and current levels are shown when the DC output switch is turned off.
Remote sense is available when needed but is disabled by setting the switch to Local.

   Mixed-mode regulation
The EX-R series combines high frequency switch-mode pre-regulation with linear post-regulation to provide performance that comes close to that of an all-linear design.
Excellent line and load regulation is matched by low noise and good transient response.

 Constant voltage or constant current
Each main output can operate in constant voltage or constant current mode with automatic crossover and mode indication. Coarse and fine voltage controls are provided. The current control is logarithmic enabling low current levels to be set accurately.

Remote Sensing
Each main output incorporates remote sense terminals that can be enabled or disabled at the flick of a switch.
Remote sensing is essential for maintaining precise regulation at the load and true metering of the load voltage. Many other power supplies omit remote sense. and quote regulation figures that could never be achieved in a practice.
N.B. A 2 metre length of a 24/0.2 wire pair has a resistance of around 0.1 W. For a 5V load drawing 3A the metering error without remote sense would be 0.3V and the effective full current load regulation would be around 6%. against a quoted figure of perhaps 0.01% for the power supply itself.
 

Variable voltage auxiliary output
The EX354RT incorporates a third output fully variable between 1.5V and 5.0V with a fixed current limit of 5A.
The set voltage can be measured at the press of a button using the digital meters. 


 Single. dual or triple outputs
The EX-R series includes four single output models plus one dual output and one triple output model.
The EX354RD has two independent and isolated outputs each with a 0 to 35V. 0 to 4A capability and its own on-off switch. The outputs can be wired in either series or parallel to provide voltages up to 70 volts or currents up to 8 amps.
All outputs are intrinsically short circuit proof. and are protected against external voltages and reverse currents.

 
DC output switches
Each main output has a DC on-off switch. This enables voltage and current settings to be viewed before the load is connected and allows multiple outputs to be controlled individually. Surprisingly. many power supplies omit this essential feature.


 Safety binding-post terminals
EX-R series power supplies are fitted with the new TTi designed output terminals. These can accept a 4mm safety plug with rigid insulating sleeve. a requirement specified by an increasing number of laboratories for safety reasons.
However. unlike the 4mm safety sockets used on some other products. the new TTi terminals can also accept fork connectors or bare wires. giving maximum connection flexibility.

EX-R series - combined range

Single Output

EX355R 35V/5A 175 watts
EX1810R18V/10A 180 watts
EX2020R 20V/20A400 watts
EX4210R 42V/10A420 watts

Dual Output

EX354RD 2 x 35V/4A 280 watts

Triple Output

EX354RT 2 x 35V/4A + 5V/5A 305 watts

MAIN OUTPUTS 
Voltage Range: 0V to 35V minimum. 
Current Range: 0A to 4A minimum. 
Output Voltage Setting: By coarse and fine controls. 
Output Current Setting: By single logarithmic control. 
Operating Mode: Constant voltage or constant current with automatic cross-over. 
Output Switch: Electronic. Preset voltage and current displayed when off. 
Output Terminals: Universal 4mm safety binding posts on 19mm (0.75”) pitch. 
Sensing: Switchable between local and remote. Spring-loaded push terminals 
for remote connection. 
Output Protection: Output will withstand up to 40V forward voltage. 
Reverse protection by diode clamp for reverse currents up to 3A. 
Load Regulation: <0.01% of maximum output for 90% load change. using remote sense. 
Line Regulation: <0.01% of maximum output for 10% line change. 
Ripple & Noise: Typically <2mVrms. <10mVpk-pk. constant voltage mode. (20MHz bandwidth)
Transient Response: <200µs to within 50mV of set level for a 5% to 95% load change. 
Temperature Coefficient: Typically <100ppm/°C. 
Status Indication: Output on lamp. Constant current mode lamp. 
METER SPECIFICATIONS (Main Outputs) 
Meter Types: Dual 4 digit meters with 14mm (0·56") LEDs. Reading rate 4 Hz. 
Meter Resolutions: 10mV. 1mA. 
Meter Accuracies: Voltage 0.3% of reading ± 3 digits. 
        Current 0.5% of reading ± 3 digits. 
AUXILIARY LOGIC OUTPUT (EX354RT only)
Voltage: Variable <1.5v to="">5V by front panel control. 
Meter Voltage Accuracy: 0.3% ± 4 digits
Current Limit: 5A minimum. 
Output Protection: Output will withstand up to 7V forward voltage. 
Diode clamp reverse protection for currents up to 3A. 
Load Regulation: <0.5% for 90% load change. 
Line Regulation: <0.1% for 10% line voltage change. 
Ripple & Noise: Typically <2mVrms. <10mvpk-pk cv="" mode="" 20mhz="" bandwidth="" div="">
Transient Response: Typically <200µs to within 50mV of set level for a 5% to 95% load change. 
Temperature Coefficient: Typically <100ppm/ºC. 
Status Indication: UNREG lamp. 
GENERAL 
AC Input: 110V - 240V AC ± 10%. 50/60Hz. Installation Category II. 
Power Consumption: 500VA max. 
Operating Range: +5ºC to +40ºC. 20% to 80% RH. 
Storage Range: −40ºC to + 70ºC. 
Environmental: Indoor use at altitudes up to 2000m. Pollution Degree 2. 
Safety: Complies with EN61010-1. 
EMC: Complies with EN61326. 
Size: 260 x 160 x 320mm (WxHxD). 
Weight: 4.3kg
Product Details
41-Standard Manufacturer Warranty 1 YEAR
622-Accuracy (V) 0.3 %
755-Type - Size "Standard - benchtop"
623-Current accuracy 0.5 %
23-Voltage resolution 10 mV
53-Current resolution (A) 1 mA
68-Max. Power 305 W (140W each main outputs)
57-Max. output voltage 35 V
58-Max. output current 4 A
56-Channel counts Triple
717-Programmable No
55-Operating mode (Type) Independant mode | serie mode | Parallel mode
621-Ripple & noise 2 mV rms
120-Safety Overvoltage CAT II
36-Additional Characteristics Variable auxiliary output 1.5-5V / 5A
132-Package includes User manual, line cord
35-Dimension (HxWxD) (mm) 160x260x320 mm
13-Net Weight 4.3 kg
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