Crown Electronic Systems

Digital Milli Ohm Meter

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“CROWN” made DIGITAL MILLI OHM METER is useful for accurate measurement of low resistance of copper wire conductors , cables, coil , heater element , contact resistance of switch relays etc. Four terminal measurement system ensures error free reading without effect of test lead resistance.

SPECIFICATION :

RANGE                                      :        0.1 mill Ohm to 199.9K Ohm in 7 Range

            RANGE                                              TEST CURRENT

            0 - 199.9 m Ohm                                           1A
            0 - 1.999     Ohm                                           100 mA
            0 - 19.99     Ohm                                           10 mA
            0 - 199.9     Ohm                                           1 mA
            0 - 1.999 K Ohm                                            100 mA
            0 - 19.99 K Ohm                                            10 mA
            0 - 199.9 K Ohm                                            1 mA


ACCURACY                                      :           ±0.2% ± 2 Digit

RESOLUTION                                   :           1 In 1999 Count

DISPLAY                                            :           3 ½ Digit 12.5 mm Height LED

POWER                                             :           230V AC ± 10%

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Digital Micro Ohm Meter

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“CROWN” made DIGITAL MICRO OHM METER is a compact high reliability 3 ½ digit instrument suitable for measurement of resistivity of copper wires from 70 SWG to 50 SWG resistance of cables , windings , coils , heater elements & contact resistance of switches , relays etc. Emphasis in the design of this instrument has been to provide quick , stable & repeatable readings of resistance . The instrument uses 4 terminal measurement so that resistance of test leads & contacts in eliminated from test results . Actual value of resistor is directly displayed on seven segment 12.5mm display .

 SPECIFICATION :

RANGE OF MEASUREMENT       :           1 micro ohm to 19.99 K Ohm in eight ranges

     RANGE                                  NOMINAL TEST CURRENT                         ACCURACY

0 - 1999 µ Ohm                                    1.50A                                                   ± 0.3% + 2 Digits
0 - 19.99 m Ohm                                  0.75A                                                   ± 0.2% + 2 Digits
0 - 199.9 m Ohm                                  0.75A                                                   ± 0.2% + 2 Digits
0 - 1.999 Ohm                                      75mA                                                   ± 0.2% + 2 Digits
0 - 19.99 Ohm                                      7.5mA                                                  ± 0.2% + 2 Digits
0 - 199.9 Ohm                                      0.75mA                                                ± 0.2% + 2 Digits
0 - 1999 Ohm                                       0.07mA                                                ± 0.2% + 2 Digits
0 - 19.99 K Ohm                                  0.075mA                                              ± 0.2% + 2 Digits


WARM UP Time for rated accuracy = 3 min.

INPUT VOLTAGE                            :           230V AC  ± 10% 10W Approx.

OVER RANGE                                 :           Three most significant digit blank & ‘1’ appears

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High Voltage DC Regulated Power Supply

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SPECIFICATION:

                        OUTPUT VOLTAGE                     CURRENT (MAX)
                                  0 - 300V                                        5A
                                  0 - 300V                                        2A
                                  0 - 300V                                        1A
                                 
                                                         
INPUT VOLTAGE                   :      230V ± 10% AC 50Hz

OUTPUT VOLTAGE               :      Continuously Variable with Coarse & Fine Control

LOAD REGULATION (CV)   :       ± 0.05 % ± 3mV From no load to full load
LOAD REGULATION (CC)   :       + 0.05% + 1mA From no load to full load

LINE REGULATION (CV)     :       ± 0.01 % ± 3mV for +10% variation input voltage
LINE REGULATION (CC)     :       + 0.01%  + 1mA for +10% variation input voltage

RIPPLE                                    :        3mV
 
METER                                  :       Two Digital meters to monitor the output voltage & current

PROTECTION                        :        Against short circuit & over load

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Multi Output DC Regulated Power Supply

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For further details or requirements, Email us or send Enquiry


                  
SPECIFICATION :

INPUT VOLTAGE            :    230V + 10% AC 50Hz
OUTPUT VOLTAGE /       :    (A) 0-30V DC  / 2A
CURRENT                                (B) 0- +15V DC / 1A
                                                    (C) 0-5V DC /5A
LOAD REGULATION      :    + 0.05% From on load to full load
LINE REGULATION            + 0.01% for + 10% variation input voltage
OPERATING MODE        :     Independent & Tracking mode
RIPPLE                               :     Less than 1mV
METER                                   (1) Two Digital meters to monitor the output voltage & current 
                                                    output A
                                                   (2) One Digital meter to monitor the output voltage of output B, 
                                                    selectable by switch 
                                                   (3) One digital meter to monitor the voltage of output C
PROTECTION                :       Against short circuit & overload


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Dual Output DC Regulated Power Supply

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  "CROWN" made Dual Output DC Regulated Power Supply are constant Voltage & Current limit type supplies, have high regulation for Load & line Voltage variation. The supply can be use in independent & current tracking made. The supply are protected against short circuit & over load. The output current can be limited to any value from 0 to maximum.

SPECIFICATION  :

                         OUTPUT VOLTAGE                                      CURRENT (MAX)
                                 0 - + 30V                                                          10A
                                 0 - + 30V                                                           5A
                                 0 - + 30V                                                           2A
                                 0 - + 30V                                                           1A
                                 0 - + 60V                                                           1A
                                 0 - + 60V                                                           2A
                                 0 - + 60V                                                           5A

INPUT VOLTAGE                :        230V + 10% AC 50 Hz

LOAD REGULATION (CV)  :       ± 0.05 % ± 3mV From no load to full load
LOAD REGULATION (CC)  :       + 0.05% + 1mA From no load to full load

LINE REGULATION (CV)    :       ± 0.01 % ± 3mV for +10% variation input voltage
LINE REGULATION (CC)    :       + 0.01%  + 1mA for +10% variation input voltage

OPERATING MODE            :      Independent & Tracking mode.

RIPPLE                               :       Less than 1mV


METER                               :       Four Digital meters to monitor the output voltage & current of A & 
                                                    B supply


PROTECTION                     :        Against Short circuit & overload.


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