R&S®NGRU Power Supplies

NGRU series are precision laboratory units

This is a discontinued product
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  • Overview

Key Facts

+++ Limited availability! - Please contact your local R&S sales agent ++++

Brief Description

The voltage can be set in five digits and continuously varied by 25% with a calibrated potentiometer. The current can be set in four digits within two ranges. The low range is 100 mA for all NGRU models so that even currents in the mA range can be reliably regulated.

Features

  • Compact bench models
  • High resolution and reproducibility through digital potentiometers
  • Output voltage continuously variable with calibrated potentiometer

Specifications

Model Voltage setting
R&S®NGRU35 <1 mV to 35 V
R&S®NGRU50 <1 mV to 50 V
R&S®NGRU100 <1 mV to 100 V

Key Facts

+++ Limited availability! - Please contact your local R&S sales agent ++++

Power Supplies of the NGRU series are precision laboratory units providing high accuracy and repeatability of voltage and current settings via digital potentiometers.The power supplies can be used as constant-voltage or constant-current sources. The maximum output power is 150 W and remains constant over a wide voltage range. The current loadability depends on the output voltage.

Brief Description

The voltage can be set in five digits and continuously varied by 25% with a calibrated potentiometer. The current can be set in four digits within two ranges. The low range is 100 mA for all NGRU models so that even currents in the mA range can be reliably regulated.

Features & Benefits

  • Compact bench models
  • High resolution and reproducibility through digital potentiometers
  • Output voltage continuously variable with calibrated potentiometer
  • Automatic power matching ensuring full power over wide output voltage range
  • Digitally settable overvoltage protection
  • Output voltage can be modulated - simulation of interference factors
  • Remote programming of voltage and current
  • Panel meter for voltage and current indication in three ranges
  • Large LED indicators for overload, overtemperature, overvoltage protection and selected operating mode
  • Switch-selectable output capacitor
  • Remote sensing

Specifications

Specifications in Brief
Voltage setting R&S®NGRU35 R&S®NGRU50 R&S®NGRU100
in 5 digits <1 mV to 35 V <1 mV to 50 V <1 mV to 100 V
Resolution 1 mV 1 mV 1 mV
Max. error at +20 ° C ± 10–4 of set value ± 20 mV
   analog (continuously) ± 25 % with ± 0.5 % setting error of scale
   Resolution 0.25 % 0.25 % 0.25 %
Current setting (2 ranges in 4 digits)
High range <1 mA to 10 A <1 mA to 5 A >12 mA to 3 A
   Resolution 1 mA 1 mA 1 mA
   Max. error (+ 20 ° C) ± 2 × 10–3 of set value ± 10 mA
Low range <10 μA to 100 mA
   Resolution 10 μA 10 μA 10 μA
   Max. error (+ 20 °C) ± 2 × 10–3 of set value ± 0.2 mA
Max. constant current (150 W) up to 15 V: 10 A
up to 20 V: 7.5 A
up to 35 V: 4.3 A
up to 30 V: 5 A
up to 40 V: 3.8 A
up to 50 V: 3 A
up to 50 V: 3 A
up to 75 V: 2 A
up to 100 V: 1.5 A
Constant-voltage source
Deviation of output voltage with
   ± 10 % AC supply <± 10–5
   0 °C to +40 °C <±10–4/K
   10 % to 90 % load <10–4
PARD (Vrms) <0.3 mV <0.5 mV <1 mV
Transient recovery time <75 μs
Constant-current source
Deviation of output current with
   ± 10 % AC supply <± 2 × 10–5
   0°C to + 40 °C <± 2 × 10–4/K
   10 % to 90 % load <2 × 10–4
PARD
   high range (Irms) <2 mA <1 mA <0.3 mA
   low range (Irms) <20 μA <20 μA <20 μA
Sensing sockets
   Max. voltage compensation <0.5 V <1 V <1.5 V
Common data
Modulation of output voltage
(BNC female, floating)
Vpp =10 V for 10 V modulation,
50 Hz to 1 kHz ± 3 dB
Input impedance approx. 3.5 kΩ
Overvoltage protection
   Setting range 1 V to 99 V (response threshold approx. 5 % higher)
Programming (external, analog)
for output voltage
   0 % to 100 % 0 V to 10 V
   for output current 0 % to 100 % 0 V to 10 V
Setting time <3 ms (to within ± 1 %)
Connector 5-contact Tuchel female
Input impedance approx. 10 kΩ
Reference potential positive terminal
General data
Meter accuracy ± 2.5 % of full scale
AC supply 110/120/220/240 V ± 10 %, 47 Hz to 63 Hz
Dimensions (W × H × D); weight 190 mm × 180 mm × 330 mm; 9 kg
(7.48 in × 7.09 in × 12.99 in; 19.84 lb)
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