THORLABS LDC240C Benchtop LD Current Controller (±4 A)

Current Control (Constant Current Mode)

Control Range: 0 to ±4 A

Compliance Voltage: >5 V

Resolution: 100 µA

Accuracy: ±4.0 mA

Noise Without Ripple(a): <50 µA

Ripple(b): <8 µA

Transients (Typ.): <4 mA

Drift, 24 hours(c): <200 µA

Temperature Coefficient: <50 ppm/°C

Current Limit

Setting Range: 0 to >4 A

Resolution: 100 µA

Accuracy: ±10 mA

Power Control (Constant Power Mode)

Photocurrent Control Range: 50 µA to 20 mA

Photocurrent Resolution: 1 µA

Photocurrent Accuracy: ±20 µA

Analog Modulation Input

Input Resistance: 10 kΩ

Small Signal 3 dB Bandwidth,CC Mode: DC to 30 kHz

Modulation Coefficient, CC Mode: 400 mA/V ± 5%

Modulation Coefficient, CP Mode: 2 mA/V ± 5%

Laser Current Monitor Output

Load Resistance: >10 kΩ

Transmission Coefficient: 2.5 V/A ± 5%

General Data

Safety Features: Interlock, Laser Current Limit, Soft Start, Short Circuit when Laser Off, Open Circuit Detection, Over Temperature Protection

Display: LED, 5 Digits

Connector for Laser, Photodiode, Interlock & Laser On Signal: 9-pin D-Sub Jack

Connectors for Control

Input / Output: BNC

Chassis Ground Connector: 4 mm Banana Jack

Line Voltage / Frequency: 100 V, 115 V, 230 V +15% –10% each / 50 to 60 Hz

Maximum Power Consumption: 100 VA

Mains Supply Overvoltage: Category II (Cat II)

Operating Temperature: 0 to 40°C

Storage Temperature: -40 to 70°C

Relative Humidity: Max. 80% Up to 31 °C, Decreasing to 50% at 40 °C

Pollution Degree (Indoor Use Only): 2

Operation Altitude: <2000 m

Warm-up Time for Rated Accuracy: 10 min

Weight: <3.3 kg

Dimensions (W X H X D) without Operating Elements: 146 mm x 66 mm x 290 mm

Dimensions (W X H X D) with Operating Elements: 146 mm x 77 mm x 320 mm

(a) 10 Hz to 10 MHz, rms, Typical

(b) 50/60 Hz, rms, Typical

(c) 0 - 10 Hz Typical, at Constant Ambient Temperature

All technical data valid at 23 ± 5 °C and 45 ±15% relative humidity.

MANUAL: