B&K 1794 instruction manual Section Specifications

Page 5

SECTION - 2

SPECIFICATIONS

OUTPUT VOLTAGE

:

0-32V DC continuously variable with coarse

 

 

and fine voltage controls.

LOAD CURRENT

: 0-30 Amp max., continuously variable with

CONSTANT VOLTAGE MODE

 

coarse and fine controls.

 

 

REGULATION

 

 

LINE

: Less than ± 0.01% ± 2mV for ±10% change in

 

 

line voltage.

LOAD

:

Less than ± 0.01% ± 2mV for load change from

 

 

zero to full load.

RIPPLE & NOISE

:

Less than 1mV rms max.(20 Hz - 20 MHz)

CONSTANT CURRENT MODE

 

 

REGULATION

 

 

LINE

: Less than ± 0.05% ±10mA for ±10% change in

 

 

line voltage.

LOAD

: Less than ±0.05% ±10mA for change in output

 

 

voltage from 0 volts to maximum output voltage.

RIPPLE & NOISE

: Less than 6mA rms.

OVERLOAD PROTECTION

: Automatic overload and short circuit protection.

TRANSIENT RESPONSE

: 100µsecs to within 10mV of set output voltage

STABILITY :

 

for load change from 10% to 90%.

 

 

Total drift within 8 hours,after

: ± 0.2% ± 10mV in constant voltage mode.

warm up under constant line,

:

± 0.5% ± 10mA in constant current mode.

load & temp.

 

 

PANEL METERS

: Digital panel meters (marked V for voltmeter and

 

 

A for ammeter) are provided with an accuracy of

 

 

± 3 counts.

MODE INDICATION

: Respective LED lights up when the unit is

 

 

working in CV or CC mode.

SET LIMIT/ ON-OFF

: Push Switches for Limit ( V & A ) and output

CONTROLS

 

ON/OFF setting.

OUTPUT CONTROLS

: Single turn coarse and fine voltage and current

 

 

controls are provided on the front panel

EXTERNAL PROGRAMMING

: Output voltage can be programmed by a variable

 

 

resistance of 5K ( Pot )

OPERATING TEMPERATURE

:

0-40°C.

INPUT VOLTAGE

: 120/230V AC, ± 10% 47 - 63Hz single phase.

DIMENSIONS

: 19"(W ) x 15.75"(D) x 5.24"(H).

WEIGHT

:

50 lbs. Net.

2

Image 5
Contents BK Precision Limited Two Year Warranty Table of Contents Limit Setting Output ON/OFF SwitchSection General Information Description Remote Programming With External 5K PotSection Specifications Section Installation Repackaging for Shipment Input TAP Selection for 230V OperationSection Operating Instructions Readjust the current limit in the remote sensing mode Reverse Current Loading Output CapacitanceReverse Voltage Loading Terms in this Manual Terms AS Marked on Equipment Operators Safety SummaryUSE the Proper Power Cord For Qualified Service Personnel only Servicing Safety SummaryDo not Service Alone USE Care When Servicing with Power onServicing shall be done only by Qualified personnel Section Service Instruction GeneralTrouble Shooting Techniques Repairs & Maintenance Page Parts Ordering & Replacing REF. PCB no PIN noPage Page Fuse Blows Fault Finding ProcedureFuse Blows Unregulated O/P Voltage Unregulated O/P VoltageNo O/P Voltage No Output VoltageNo DPM Indication No DPM IndicationDPM not Read Unit not Take Current Unit not Take CurrentUnit Directly Goes To CC Unit Directly Goes to CCPoor Line Regulation No Current ControlNo Current Control Poor Line RegulationPoor Load Regulation Poor Load RegulationCV, CC, LED not Glow External Programming Not OK External Programming not OKRemote Sense not OK L1791-FP-CNT-0603 PCB Assy Section Part List & Schematics1KPF/100V, Disc 2P2W SW Push ButtonPS-PREG-1791-0503 PCB Assly SW1 Grey Colour CAP for Push Switch SW2 SW3DPM/01 REV 01 X PS-PWR-L1791-0703A PCB Assly PS-AUX-DC-L1791-0503 PCB AsslyBack Trough Assly Front Panel AsslyMain Chassis Assly Front Panel Layout Back Panel Layout TOP View Bottom View of Model 1790 Front Panel Control PCB of 1790 Power Module PCB of 1790 PRE Regulator / AUX. P/S PCBs 1790 Precision Corp Service InformationPrecision Corp