The B&K Precision 1688B is a powerful, compact and lightweight power supply for laboratory use. It is ideal for test and development environments, telecommunications applications and for use in university laboratories and service centers. The user-friendly control with rotary encoders enables precise adjustment of voltage and current.
The Variant 1688B offers the highest current of the series at 0 - 18 V, 0 - 20 A. Alternatively, the variants 1685B (60 V / 5 A) and 1687B (36 V / 10 A) are also available.
Product features:
- Output voltage: 1 - 18 V
- Output current: 0 - 20 A
- Voltage regulation:
- Load (0-100 %): ≤ 50 mV
- Line (90-132 VAC, 170-264 VAC): ≤ 20 mV
- Current regulation:
- Load (10-90 % of rated voltage): ≤ 100 mA
- Line (90-132 VAC, 170-264 VAC): ≤ 50 mA
- Ripple & Noise:
- Voltage (rms): ≤ 5 mV
- Voltage (peak-peak): ≤ 50 mV
- Current (rms): ≤ 30 mA
- Display accuracy: ± 0.2 % + 3 counters
- Input voltage: 100-240 VAC, 50/60 Hz
- Power consumption at full load:
- 100 VAC: 4.6 A
- 230 VAC: 2.1 A
- Efficiency:
- 100 VAC: 81 %
- 230 VAC: 85 %
- Switching frequency: 100 - 120 kHz
- Protection mechanisms: Overload, overvoltage, overtemperature
- Special functions:
- 3 storable voltage and current values
- Analog remote control
- USB interface for PC control
- External time-controlled programming (up to 999 cycles)
- Cooling: Thermo-controlled fan
- Operating temperature: 0 °C to 40 °C
- Dimensions (WxHxD): 200 x 90 x 208 mm
- Weight: 2.4 kg
- Warranty: 2 years
