B&K Precision 1902 Manuel d'instructions

Model 1900, 1901, 1902 Switching DC Power Supply INSTRUCTION MANUAL

8 4 Operating Instructions Safety Precautions ● Never short the remote sensing terminal. ● This power supply is for indoor use only. ● Do n

9 4.1 Using the Power Supply 4.1.1 Connection To connect the equipment to the power supply, follow the steps below. 1. Check the rating label of

10 Front Panel Display Test Segment check C.V. indicator check C.C. indicator check Rear control indicator check Return to C.V. Start power su

11 Front Panel Display Test Overtemperature protection check Fan check Output off (remote control mode) Table 2 - Self Test Sequence The LED and

12 4.1.4 Using Both Main and Auxiliary Outputs The power supply has a main output in the rear and an auxiliary output in the front that can be used

13 Note: The power supply is factory preset to Normal Mode with maximum current level. 4.2.1 Normal Mode This is the factory preset mode and the po

14 4.2.3 Set Mode First, enter Set Mode by pushing Mode Selection Switch to “Set” position. To define the preset output P1/P2/P3 1. Select the Reca

15 4.2.4 Analog Remote Control Mode Select this mode to control the output voltage and current by Remote Control Connector. Please refer to Section

16 4.3.2 Disconnection WARNING: Wrong disconnect sequence will damage the power supply. 1. Disconnect the remote sensing connections. 2. Disconne

17 Figure 5 - Pin Numbers (c) Make sure the load is disconnected and the power supply is OFF. (d) Plug the remote connector plug into the analog r

18 Method A: Using Two External Variable DC Voltage Sources PIN FUNCTIONS REMARKS 1 Internal DC +5 V Less than 50 mA 2 Voltage Adjust 0 – 5 V

19 5. Switch on the power supply. 6. Check the output voltage range of the power supply by varying the external voltage source for voltage adjustme

20 PIN FUNCTIONS REMARKS 1 Internal DC +5 V Resistor end 2 Voltage Adjust Variable part of resistor 3 Current Adjust Variable part of resisto

21 Shorting Pin 5 to Pin 4 (ground) will turn the output off. When output is off, the CV and CC LED will flash. The current output voltage and curren

22 5.2 OTP: Overtemperature Protection There is a thermo sensor inside the unit to monitor and prevent the unit from getting too hot. When OTP is t

23 Figure 10 - Overload Protection To reset this warning, switch off the unit and remove all connected devices. Switch the unit back on again and do

24 6 Specifications Models 1900 1901 1902 Output Variable Output Voltage 1 – 16 V 1 – 32 V 1 – 60 V Variable Output Current 0 – 60 A 0 – 30 A 0

25 Models 1900 1901 1902 Switching Frequency 65 – 85 kHz 75 – 95 kHz 65 – 85 kHz Tracking Overvoltage Protections O/P 1-5 V: set voltage +2 V O

26 7 Certification CE Compliant CE Declaration of Conformity The power supply meets the requirements of 2006/95/EC Low Voltage Directive and

27 8 Service Information Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain an RMA #. R

1 1 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of ope

28 9 Limited Two-Year Warranty B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof will

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Printed in Hong Kong v060811 22820 Savi Ranch Pa

2 WARNINGS AND CAUTIONS WARNING and CAUTION statements, such as the following examples, denote a hazard and appear throughout this manual. Follow al

3 Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with sep

4 Contents 1 Safety Summary ... 1 2 Introduction ...

5 2 Introduction B&K Precision models 1900, 1901, and 1902 are laboratory grade switching mode DC power supplies with high current output in a

6 3 Controls and Indicators 3.1 Front Panel Figure 1 - Front Panel (1) LED panel meter display with CV/CC indicator (2) Rear Control Indicator

7 3.2 Rear Panel Figure 2 - Rear Panel (7) Main Output Terminal (max 60 A for 1900 / 30 A for 1901 / 15 A for 1902) Note: Please see Section