英国TTi PLH120/PLH250高线性直流电源

TTi PLH系列高性能线性直流稳压电源

它是基于低电压的线性电源新的PL系列（提供高达60V）具有相同的套管式和类似的输出功率。然而，某些功能的高电压的相关是不同的。

PLH系列的真正的模拟控制，结合新的数字为基础的方便的特点。

产品特点：

• 为便于使用真实的模拟控制
• S -锁功能立即锁定设置
• 为减少不确定性的计量
• 平均的低电流范围，电流表
• 直流输出开关和“视图限制”按钮
• 为了获得性能的线性调节
• 超紧凑的设计，使用更少的空间
• 比其他线性供应更高的能源效率
• 安全接线柱连接端子

产品型号/规格：

• PLH120 - 0 to 120V at 0 to 750mA
• PLH250 - 0 to 250V at 0 to 375mA
  Lower Voltage Models - Go Here for New PL and PL-P Series

PL068 - 0 to 6V at 0.to 8A
PL155 - 0 to 15V at 0 to 5A
PL303 - 0 to 30V at 0 to 3A
PL601 -  0 to 60V at 0 to 1.5A
PL303QMD - 2 x (0 to 30V at 0 to 3A)
PL303QMT - 2 x (0 to 30V at 0 to 3A) plus 0 to 6V at 0.to 8A

OUTPUT SPECIFICATIONS

Voltage/Current Levels

PLH120 - 0 to 120V / 0.01mA to 750mA (90W max.)
PLH250 - 0 to 250V / 0.01mA to 375mA (94W max.)
Note: Actual maxima for voltage and current are typically 1% greater than the figures given above
except for the voltage control on the PLH250 which is limited to 250.0V.

Output Setting & Control

Voltage Setting: By coarse and fine controls.
Current Setting: By single logarithmic control.
Low Current Range: Reduces max. current to 75mA and increases resolution to 0.01mA.

Output Mode: Constant voltage or constant current with automatic cross-over.
CC indicator lit in constant current mode.

Output Switch: Electronic, non isolating. Preset voltage and current limit displayed when Output is off.
Output rise time no load <20ms.

View Settings: With the output On, the meters show actual voltage and current.
The preset levels can be viewed and adjusted at any time by pressing the View Settings button.

V-Span (Voltage Span Control)

The voltage adjustment range can be controlled by digital setting of the end-stop values of
the coarse voltage control to any desired values. The range for Vmax is 1V to 120V or 250V depending on model.
The range for Vmin is 0 to (Vmax – 1V).

S-Lock (Settings Lock)

Voltage and current settings can be locked by a single button press. Lock accuracy is equal to the meter accuracy (see Meter Specification).

Output Performance

Ripple & Noise: Normal mode voltage: <2mV rms and 10mV p-p
Normal mode current: <10uA rms ; <1uA rms on 75mA range
Common mode current: <20uA rms
Load Regulation: Voltage - <0·01% + 10mV.
Current - typically 0·01% + 50μA.
Line Regulation: Voltage <0·01% + 10mV for 10% line change.
Current <0·01% + 50μA. for 10% line change.
Transient Response: <250μs to within 50mV of setting for a 90% load change.
Temp. Coefficient: Voltage: typically <(50ppm + 2mV)/°C
Current: typically <(100ppm + 0.1mA)/°C;
<(100ppm + 0.01mA)/°C on 75mA range.

Output Protection

Output Protection: Output will withstand forward voltages of up to rated output voltage.
Reverse protection by diode clamp for currents to 3A.
OVP and OCP Trips: Voltage or current measured to be in excess of 105% of the rated maximum will cause the output to trip off.
Over-temperature: Output trips off for over-temperature.
Safety Interlocks: Operations that could cause an unexpected change in voltage or current settings are interlocked with the output switch.

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, 10mm (0·39”) LED.
Voltage Meter
Resolution: 100mV
Accuracy: ± (0·1% of reading + 100mV)
Current Meter
Resolution: 0.1mA (0·01mA on 75mA range)
Accuracy: ± (0·3% + 0.3mA); ± (0·3% + 0·03mA) on 75mA range
Meter Damping: Normally 20ms, switchable to 2 sec for averaging rapidly varying loads

GENERAL SPECIFICATIONS

Input
AC Input: 230V AC or 115V AC ± 10%, 50/60Hz. Installation Category II
Input Power: 280VA max.
Temperature & Environmental
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.
Cooling: Intelligent variable-speed low noise fan assists convection.
Safety & EMC
Safety: Complies with EN61010-1
EMC: Complies with EN61326
Physical
Size: PLH models - 107mm x 131mm (? rack 3U) x 288mm,
PLH-P models - 107mm x 131mm (? rack 3U) x 315mm,
(sizes exclude feet, knobs and terminals).
Weight: PLH models - 4·9kg;
PLH-P models - 5.0kg

OPTIONS

Rack Mount (RM450)
19 inch 4U rack mount suitable for up to four PLH series power supplies. Alternatively they
can be mixed with the lower voltage New PL series in a single rack with up to four single
power supplies, two dual power supplies, or any mixture. Blanking plates are provided for
unused positions. The 4U height provides limited ventilation space above and below the power
supplies.