Crown Electronic Systems

Digital Panel Meter DPM

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“CROWN” made DIGITAL PANEL METER (DPM) are the best products available in the industry. We follow the best manufacturing practices to provide our buyers world class products at the best possible prices.

SPECIFICATION : 

SINGLE FUNCTION ,  SINGLE RANGE 

DISPLAY                              :        3 ½ Digit LED 12.5mm High

RESOLUTION                       :       1 in 1999 Count

BASIC ACCURACY               :       ± 0.1%  ± 1 Digit

OPERATING VOLTAGE         :        230V AC ± 10%
                                                     OR 110V ± 10% AC / 12V DC For DC Range (Optional)

DC VOLTAGE                       :         0 to + 199.9mV or +1.999V or +19.99V or +199.9V or + 1000V

AC VOLTAGE                       :         0 to + 199.9V or + 1.999V or + 19.99V or +199.9V or +750V 

DC CURRENT                       :         0 To ± 199.9μA or ± 1.999mA or ± 19.99mA or ± 199.9mA or
                                                      ± 1.999A or ± 19.99A

AC CURRENT                        :         0 To 199.9μA or 1.999mA or 19.99mA or 199.9mA or 1.999A or
                                                       19.99A

PANEL CUT OUT                   :         (A) 92mm (H) X 92mm (W) X 65mm (D)
                                                       (B) 46mm (H) X 92mm (W) X 65mm (D)
                                                       (C) 72mm (H) X 72mm (W) X 65mm (D)



Testing & Measuring Instruments Manufacturer

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Digital Micro Ohm Meter (Rotary Switch) 53C

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“CROWN” made DIGITAL MICRO OHM METER -53C  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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LED Test Panel With AC Source

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SPECIFICATION : 


A) INPUT VOLTAGE    : 30 - 300 V AC
B) INPUT CURRENT    : 10mA - 2A
C) MEASUREMENT     : True RMS
D) RESOLUTION         : Floating Decimal Point
E) ACCURACY             : Class 0.2 and for P.F. + 0.005
F) DISPLAY                 : Four Rows 7- segment Display For AC V, A, W, Hz, pF, VA
                                      DC Volt Meter 0 - 199.9V, AMMETER 0 - 1.999A
G) AUX. SUPPLY         :  230V + 20% 

High Voltage Breakdown Tester

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SPECIFICATION ;

                                 TEST CURRENT (AC)                        TEST CURRENT

                                       0 - 5KV                                                      30mA
                                       0 - 5KV                                                      100mA
                                       0 - 10KV                                                     30mA
                                       0 - 20KV                                                     30mA


METER                                :        Two Digital Meters to monitor Voltage & Amp Leakage Current     
   
ACCURACY                         :        + 1% of Reading

POWER REQUIREMENT      :       230V AC 

OPTIONAL :

TIMER                                   :      3 Digit , settable form 0 - 999 Sec

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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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For further details or requirements, Email us or send Enquiry


“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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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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