Sigma Instruments, Sunil Associates

SIGMA MILLION MEGOHM METER

SIGMA Million Megohm Meter is an ideal instrument for measuring high resistance and insulation. Since it applies a highly stable IC regulated H.T up to 500VDC across the element under test, it serves the purpose of a megger also. It measures the insulation resistance of the sample under stress by subjecting it to the voltage. It has a measuring range of 1 Megohm to 10 Million Megohms in six decade ranges and is capable of reading up to 10 Million Megohms (1014 Ohms) with accuracy operational amplifiers ensures low drift, low input bias current, highly stable performance. A separate HT-NORM-RX switch with amber colour lamp indication facilitates to link or de-link HT with terminal. The HT can also be across checked and set accurately in HT position by observing PSD and using fine and coarse H.T controls.

TECHNICAL SPECIFICATION
Measurement Range: 1 Mohms to 10 Million Megohms in six ranges

Accuracy: Within ± 5%
Test Voltage: High Stable: 100, 200, 300, 400, 500VDC, adjustable accurately by Set H.T pot.

Overload Protection Input operation amplifier protected against accidental overload in first four ranges

Power Supply 230V ±10% at 50Hz

SIGMA THD POWER ANALYZER

Digital THD Power Analyzer is used to measure Voltage, Current, Wattage, Apparant Power, Frequency, Power Factor and THD upto 55th harmonics of any electrical and electronic appliances, LED lights, CFL, Transformer, Fans, Airconditioner,Motors, Auto Parts etc. High accuracy, digital readout, light duty used in general industrial maintanance, production, quality control, laboratories.
FEATURES
• STATE OF ART MICROCONTROLLER DESIGN
• MEASURES V, A, W, F, VA & P.F, THD upto 55th Harmonics
• Voltage THD, Current THD
• Net effective load on THD
• TRUE RMS READING
• THERE IS A SIMULTANEOUS DISPLAY OF VOLTAGE, CURRENT, WATT & ALTERNATE DISPLAY OF POWER FACTOR, FREQUENCY, THIS MAKES Q.C PROCESS SIMPLER AND FASTER

TECHNICAL SPECIFICATIONS
Input Voltage 0-300V AC
Input Current 1A/ 5A / 10A (Range 1 to 100% of full scale)
Measurement True RMS
Resolution Floating Decimal Point
Display LCD Display (LED Display also available)
Auxiliary Supply 230V AC ± 10%

APPLICATIONS
• Testing of Transformers, Motors, Machines etc.
• Fluorescent Lamps, Chokes Industries
• Laboratory Experiments in Educational Institutes

SIGMA 33A Auto Range 3999 Count Multimeter TRMS
New type holster, streamline design.

•Large LCD makes the reading clearly. Backlight.
•Metallic screen board with stronger antimagnetic and anti-interferential function.
•Full function protection, anti-high voltage circuit design.
-CAT-IV
-True RMS

Technical data

Basic Function Range Accuracy
DC Voltage 400mV/4V/40V/400V/1000V ±(0.5%+4)
AC Voltage 400mV/4V/40V/400V/750V ±(0.8%+10)
DC Current 400uA/4000uA/40mA/400mA/10A ±(1%+10)
AC Current 400uA/4000uA/40mA/400mA/10A ±(1.5%+10)
Resistance 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ ±(0.8%+4)
Capacitance 4nF/40nF/400nF/4uF/40uF/200uF ±(2.5%+20)
Frequency 100/1000/10k/100k/1M/30MHz ±(0.5%+10)
Temperature -40~1000 º C ±(1.0%+5)

Special Function
Diode √
Transistor √
Continuity buzzer √
Low battery indication √
Data Hold √
Auto power off √
Shockproof protection √
Function protection
Input impedance 1%~99.%, 10МΩ
Auto power off 3 times/s
Shockproof protection Auto range
Function protection 3999
Lcd Size 65×35mm
Battery 3V (1.5V×2)
Diode √

SIGMA High voltage breakdown tester are useful for measurement of breakdown (flashover) voltage of electrical components, insulation materials instruments, transformers, etc. can be used to ascertain quality of insulation material before planning their usage in electrical applications. The front panel incorporates all controls for operation of the unit. Easy to use test probes with micro-switch supplied to connect the output high voltage to the device under test.

SPECIFICATIONS: -
Open Circuit Voltage 0 to 5 KV OR 0 to 10 KV AC.

The above voltage can be continuously varied from zero to full value and is continuously monitored by Digital Panel meter.

Test Current 3 mA to 30 mA OR 3 mA to 100 mA

Accuracy Of Reading ± 2%

Power Requirements 230 volts AC, ± 10%, 50/60 Hz

Safety Precautions Protection provided for accident availability of High Voltage on test terminals. High Voltage on test jig appears only when the micro-switch on the probe is pressed

Features
• Six test voltages cover 100V, 250V, 500V, 1000V, 2500V, 5000V for flexible application
• Measure insulation resistance to 200GΩ with 0.01MΩ resolution
• Data hold, auto range, auto power off, LCD background light
• Complete with test leads, heavy duty carry case and six 1.5V AA batteries

Specifications
MODEL 9500
Testing Voltage 100, 250, 500V DC 1000, 2500, 5000V DC
Insulation Resistance 0.1 ~ 20GΩ ± (3% + 5digit) 0.1 ~ 200GΩ ± (5% + 10digit)

Resolution 0.01MΩ

Auto Range Yes

Function Symbol Display Yes

Data Hold Yes

Low Battery Warning Yes

Max. Display 1999

LCD Backlight Yes

General Characteristics
Power Supply AA 1.5V X8
Product Size 190 X 150 X 75 mm

DIGITAL INSULATION TESTER

3999 counts max.
With Backlight & overload protection

Test voltage 250V ± 10% 500V ± l0% l000V ± l0%
Resistance range 0.25MΩ - 400MΩ 0.5MΩ - 4GΩ 1.5MΩ - 40GΩ

Accuracy 0.2M to 200 MΩ ± 3.0%+5,
200M to 4 GΩ ± 5.0%+5,
4G to 40 GΩ ± 10%+5

Short circuit current 1.5mA 1.5mA 1.5mA

Timer Setting 1min, 2min & 10min

Also having facility to check different parameters like:
AC/DC Voltage, AC/DC mAmp Current, Frequency, Capacitance, Resistance, Continuity, Diode Checking

Power source : 6 X 1.5V AA Batteries
Dimension : 170 X 156 X 64mm
Weight : Approx. 650g (including battery)

The Digital Microohm meter is a precision instrument, which is extremely suitable for measurement of low value resistance.
The instrument uses state of art technology for measurement of low values of resistances. The measuring technique eliminates errors caused due to resistance in the connecting leads.
The instrument uses precision low drift integrated circuits to ensure stability of measurement over widely changing conditions.

TECHNICAL SPECIFICATIONS
Display : Measurement Technique : 4½ digit panel meter
Measuring Ranges: : 20000µ ohm; 200m ohm; 2 ohm; 20 ohm; 200 ohm; 2 K-ohm; 20 K-ohm.

Measurement Accuracy : 0.05% ± 3 digit
Test Current
: Range Current Resolution
19999µ ohm 1.0 A 1 micro ohm
199.99m ohm 1.0 A 10 micro ohm
1.9999 ohm 100 mA 100 micro ohm
19.999 ohm 10 mA 1 m ohm
199.99 ohm 1 mA 10 m ohm
1.9999 K-ohm 0.1 mA 100 m ohm
19.999 K-ohm 0.01 mA 1 ohm

APPLICATIONS
The Digital Micro-ohmmeter finds application wherever low resistance values are to be measured. It is an asset for electrical and electronic industry. It can be used for finding the resistance of transformer or motor winding. It can be used to calibrate ammeter shunt wires.

Digital Power Analyzer/ Digital Multifunctional Meter is used to measure Voltage, Current, Wattage, Apparant Power, Frequency, Power Factor of any electrical and electronic appliances, CFL, Transformer, Fans, Airconditioner,Motors, Auto Parts etc. High accuracy, digital readout, light duty used in general industrial maintanance, production, quality control, laboratories.
FEATURES
• STATE OF ART MICROCONTROLLER DESIGN
• MEASURES V, A, W, F, VA & P.F
• TRUE RMS READING
• APPLICABLE FOR WIDE RANGE OF POWER FACTOR i.e. 0.05 LAG TO 0.05 LEAD
• THERE IS A SIMULTANEOUS DISPLAY OF VOLTAGE, CURRENT, WATT & ALTERNATE DISPLAY OF POWER FACTOR, FREQUENCY, THIS MAKES Q.C PROCESS SIMPLER AND FASTER

TECHNICAL SPECIFICATIONS
Input Voltage 0-300V AC
Input Current 1A/ 5A / 10A (Range 1 to 100% of full scale)
Measurement True RMS
Resolution Floating Decimal Point
Accuracy Class 0.5 ( For P.F ± 0.2) & ± 0.5 for Frequency
Display LED Display
Auxiliary Supply 230V AC ± 10%

APPLICATIONS
• Testing of Transformers, Motors, Machines etc.
• Fluorescent Lamps, Chokes Industries
• Laboratory Experiments in Educational Institutes

TECHNICAL SPECIFICATION
RANGE 0 to 50000 Lux in auto range of 0 to 199.9, 200 to 1999, 2000 to 20000 and 20000 to 50000 Lux. ( Auto range)
ACCURACY 10 to 200 Lux, ± 3% ± 3 lux
200 to 2000 Lux, ± 2% ± 2 lux
2000 to 20000 Lux, ± 3% ± 8 lux
20000 to 50000 Lux, ± 4% ± 10 lux
RESOLUTION 0.1 in the range of 0 to 200 Lux.
1 in the range of 0 to 2000 Lux.
10 in the range of 0 to 20000 Lux.
100 in the range of 0 to 50000 Lux.
DATA HOLD Data hold facility is provided.

DISPLAY 3½ Digit, 7 segment LCD type of 12.5mm height.
X10, X100, data hold and low battery indications are provided
SENSOR Separately attached light sensor allows user to take measurements at an optimum position.
POWER REQUIREMENTS 9 volts battery.

SIZE & WEIGHT 23 mm (H) X 73 mm (W) X 108 mm (L). 160 gms
STANDARD ACCESSORIES Battery, instruction manual and carrying case.

For Further Details:-
SUNIL ASSOCIATES
ASHOKA PALACE,
23, WEST PATEL NAGAR,
NEW DELHI – 110008.
Ph. – 25884181, 25882168, Tele Fax 25883908. (M) 9312531313
E-mail:- [email protected]
Website: www.sigmainstruments.com