Digital TDS meter (Table Model), 3 digit LED display, digital cell constant adjustment facility, comes with TDS cell. Range: 10 ppm to 1000 ppt In 5 ranges
Resolution 0.01 ppm in lowest range
Accuracy (F.S) 1% 1 digit
Cell Constant Compensation Adjustable (0.5 to 1.5)

Microprocessor Based pH Meter with 16x2 alphanumeric LCD display showing pH, mV, Temp, having auto temperature compensation, auto buffer recognition along with accessories. Range 0 - 14 pH, Resolution 0.01 pH
Accuracy 0.01 pH 1 digit

Digital conductivity meter, 3 digit LED display, digital cell constant adjustment facility, comes with conductivity cell. Range 10 mho to 1000 mmho In 5 ranges. Resolution 0.01 mho

Stack Monitoring Kit Consisting as follows:
1) Temperature Range Ambient to 600C
2) Set of Inter Connection Hoses Pipes.
3) Double Wall Cold Ice Box.
4) Rotary Van type Vacuum pump Cap. 100 LPM.
5) Dry Gas Meter Assembly.
6) Velocity measuring Kit
7) Pitot Tube. 1-meter length.
8) Thermocouple.
9) Glass Impingers No. 2, as a condenser & 3 No for sampling. Rotameters. 3 LPM for Gases and 100 LPM for Stack.
Accessories
1. Impinger 275 ML: 01 No.
2. Impinger 150 ML: 01 No.
3. Thimble paper Pkt. of 25 Nos. 01 No.

3.1/2 Digit 18mm (0.7) LCD.
Range: 30 to 130 dF 3 ranges
1st Range: 30 to 80dB.
2nd Range: 50 to 100 dB
3rd Range: 80 to 130dB
50dB on each step, with over and under range indicating,
Resolution: 0.1dB.
Accuracy: 23 50C.
Frequency: 31.5Hz to 8, 000 Hz.

The instrument is unique in design and measures the diameter of the inhibited zone to 0.1 mm within the range of 0 to 35 mm. Light from a source in the base passes up through the transparent and semi transparent portion of the agar.-agar, then to a reflecting mirror supported by an arm above the unit. The mirror reflects the light to a glass prism mounted at the front of the unit and the magnified image of the prism. The unit is suitable for operation on 230 V, 50 Hz, Single phase AC Supply.

Panel type moving iron ammeters are available in three sizes: 72x72mm, 96x96mm, and 144x144mm. Current range is available from 1A to 50A. Any other range can also be manufactured as per your specification.

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 (1015 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 SPECIFICATIONS
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
Meter 200A moving coil type for good resolution
Power Supply 230V 10% at 50Hz

Digital R-C Unbalance Meter for communication cables. It has been shown that there are some losses resulting from the cable manufacturing process which affects the intelligibility of the telephone circuit. These are caused by the unbalances in the cable pairs which not only affect the uniformity of the line but it also makes the lines susceptible to induction from other sources such as power line harmonics, ground line, voltage noise, etc.
The degree of balance in communication circuit determines how susceptible the circuit will be to induce noise voltages. This R-C Unbalance Meter will be very useful for direct measurement of capacitance unbalances in the cable pairs. The instrument can measure resistance unbalance also. The pairs can be tested for capacitance and resistance unbalances in different configurations which are selected by a rotary switch. The Unbalance Meter is designed in such a way that it will not be sensitive to the effect of indirect couplings. This Digital R-C Unbalance Meter meets the long felt requirement of telecom cable industry. The instrument confirms to international specifications and yet is priced less than half of comparable instruments available in the international market.
TECHNICAL SPECIFICATIONS
Measurement Parameters:
Resitance Unbalance DR1, DR2, DR3
Capacitance Unbalance
Pair to pair K1, K2, K3
pair to ground E1, E2, E3
Measuring Ranges:
Resistance Unbalaces - 19.99% to +19.99%
Capacitance Unbalances - 1999 to + 1999 pF &
in two ranges. -19.99 to + 19.99 nF
Indication: 3 Digit Panel Meter with sign
Resolution:
Resistance Unbalance 0.01%
Capacitance Unbalance 1 pF
Test Voltage:
Resistance Unbalance 2 VDC
Capacitance Unbalance 6 VAC
with switchable frequencies 800 Hz & 1 KHz
Minimum Loop Resitance: 1 Ohm
Selection of Parameters: By means of rotary switch on front panel

Measurement Range 0.1 milliohm to 200K ohm in 7 steps
199.9 milliohms, 1.999 ohms, 19.99 ohms, 19.99 ohms,
199.9 ohms, 1.999K ohms, 19.99K ohms, 199.9K ohms,
Accuracy 0.2%, 2 Digit (3 Digit), Mains Operated, LED Display.

As Entertainment of air in limited percentage improves durability of concrete and very low percentages deteriorate it, measurement of air entrapped in freshly mixed concrete becomes important. The use of chemical additives to increase workability of concrete requires an air content check to be made. Air Entertainment meters are used to determine air entertained in freshly mixed concrete by pressure method.

The apparatus consists of a pressure tight-flanged cylindrical measuring bowl of 0.005 cubic meter capacity for maximum size of aggregate 38mm. The bowl is fitted with a removable flanged conical cover assembly with the help of a seal. The conical cover has an air valve and a pet cock for bleeding off the water. A transparent cylindrical stand pipe which is graduated in air content is fixed to the conical cover assembly. Pressure is applied to the specimen with the help of a pressure bulb and the pressure is recorded on the pressure gauge which is mounted on the stand pipe. The whole assembly is mounted on a flat base. The instrument is supplied complete with one each following accessories. Calibration cylinder with spring clamp, Trowel, Tamping rod, Straight edge, Rubber mallet and measure.
Available in following sizes & capacities:
0.005 cubic meter capacity for maximum size of aggregate 38mm.
0.007 cubic meter capacity for maximum size of aggregate 50mm.
0.01 cubic meter capacity for maximum size of aggregate 75mm.
0.1 cubic meter capacity for maximum size of aggregate 150mm.

Range: 0 to 40ppt (40, 000PPM)
Resolution: 0.1ppt
Accuracy (FS): 1%1 digit
Display: 3 Digits LCD
Ambient Temp: 10C to 50C
Power Supply: 9V Battery
Supplied complete with Salinity Probe and instruction manual

For determining the unit weight of aggregate. Made from sheet iron, complete with handle, capacity 10 litres or 20 litres

DCV: 0.4 / 4 / 40 / 400V 0.8%, 1000V 1.0%
ACV: 4 / 40 / 400V 1.0%, 700V 1.2%
DCA: 400 / 1000V 3.0%
ACA: 400 / 1000V 3.0%
RESISTOR: 400 / 4k / 40k / 400k / 4MOhm 1.0%, 40MOhm 2.0%
CAP: 4n / 40n / 400n / 4 F 4.0%
FREQUENCY: 40Hz to 100kHz 2.0%
TEMPERATURE: -40C to 750C 1.0%
DUTY CYCLE: 0.1% to 99.9%
DIODE TEST
CONTINUITY TEST
DATA HOLD

Range: 3 ranges (0 to 20.0 NTU, 0 to 200.0 NTU, and 0 to 1000.0 JTU)
Resolution: 1 JTU
Accuracy: 3 % FS 1 digit
Sample System: 30 mm clear glass tube
Light Source: 6.8 V Tungston Lamp
Detector: Photodiode
Display: 3 1/2 digit LED display
Power Supply: 220 V 10% AC 50 Hz

Available in both Manual & Motorized version for DRY/WET rubbing fastness of textiles, leather & Floor coverings.

These are repulsion type moving iron system having high torque to weight ratio. Instruments are highly damped with best jewel bearings, incorporated with hardened and precisely polished pivots and chemically treated hair springs for corrosion protection. The whole profile looks elegant and in complete harmony with the latest modular design. Ammeters and Voltmeters are available in various current and voltage ranges in panel type in the following sizes:72x72mm, 96x96mm, 144x144mm

This is a compact high reliability 3 1/2 Digit instrument suitable for measurement of resistivity of copper wires from 7/0 SWG to 50 SWG. resistance of cables, windings, coils, heater elements and contact resistance of switches, relays etc. Emphasis in the design of this instrument has been to provide quick, stable and repeatable readings of resistance. The instrument uses 4-terminal measurement so that resistance of test leads and contacts is eliminated from test results. Actual value of resistor is directly displayed on seven segment 12.5mm Display.
RANGE OF MEASUREMENT : 1micro-ohm to 1999 ohm in seven range. INPUT VOLTAGE : 230V AC 10% 10W Approx.

Digital TDS meter (Table Model), 3 digit LED display, digital cell constant adjustment facility, comes with TDS cell. Range: 10 ppm to 1000 ppt In 5 ranges
Resolution 0.01 ppm in lowest range
Accuracy (F.S) 1% 1 digit
Cell Constant Compensation Adjustable (0.5 to 1.5)

Microprocessor Based pH Meter with 16x2 alphanumeric LCD display showing pH, mV, Temp, having auto temperature compensation, auto buffer recognition along with accessories. Range 0 - 14 pH, Resolution 0.01 pH
Accuracy 0.01 pH 1 digit

Digital conductivity meter, 3 digit LED display, digital cell constant adjustment facility, comes with conductivity cell. Range 10 mho to 1000 mmho In 5 ranges. Resolution 0.01 mho

Stack Monitoring Kit Consisting as follows:
1) Temperature Range Ambient to 600C
2) Set of Inter Connection Hoses Pipes.
3) Double Wall Cold Ice Box.
4) Rotary Van type Vacuum pump Cap. 100 LPM.
5) Dry Gas Meter Assembly.
6) Velocity measuring Kit
7) Pitot Tube. 1-meter length.
8) Thermocouple.
9) Glass Impingers No. 2, as a condenser & 3 No for sampling. Rotameters. 3 LPM for Gases and 100 LPM for Stack.
Accessories
1. Impinger 275 ML: 01 No.
2. Impinger 150 ML: 01 No.
3. Thimble paper Pkt. of 25 Nos. 01 No.

3.1/2 Digit 18mm (0.7) LCD.
Range: 30 to 130 dF 3 ranges
1st Range: 30 to 80dB.
2nd Range: 50 to 100 dB
3rd Range: 80 to 130dB
50dB on each step, with over and under range indicating,
Resolution: 0.1dB.
Accuracy: 23 50C.
Frequency: 31.5Hz to 8, 000 Hz.

The instrument is unique in design and measures the diameter of the inhibited zone to 0.1 mm within the range of 0 to 35 mm. Light from a source in the base passes up through the transparent and semi transparent portion of the agar.-agar, then to a reflecting mirror supported by an arm above the unit. The mirror reflects the light to a glass prism mounted at the front of the unit and the magnified image of the prism. The unit is suitable for operation on 230 V, 50 Hz, Single phase AC Supply.

Panel type moving iron ammeters are available in three sizes: 72x72mm, 96x96mm, and 144x144mm. Current range is available from 1A to 50A. Any other range can also be manufactured as per your specification.

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 (1015 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 SPECIFICATIONS
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
Meter 200A moving coil type for good resolution
Power Supply 230V 10% at 50Hz

Digital R-C Unbalance Meter for communication cables. It has been shown that there are some losses resulting from the cable manufacturing process which affects the intelligibility of the telephone circuit. These are caused by the unbalances in the cable pairs which not only affect the uniformity of the line but it also makes the lines susceptible to induction from other sources such as power line harmonics, ground line, voltage noise, etc.
The degree of balance in communication circuit determines how susceptible the circuit will be to induce noise voltages. This R-C Unbalance Meter will be very useful for direct measurement of capacitance unbalances in the cable pairs. The instrument can measure resistance unbalance also. The pairs can be tested for capacitance and resistance unbalances in different configurations which are selected by a rotary switch. The Unbalance Meter is designed in such a way that it will not be sensitive to the effect of indirect couplings. This Digital R-C Unbalance Meter meets the long felt requirement of telecom cable industry. The instrument confirms to international specifications and yet is priced less than half of comparable instruments available in the international market.
TECHNICAL SPECIFICATIONS
Measurement Parameters:
Resitance Unbalance DR1, DR2, DR3
Capacitance Unbalance
Pair to pair K1, K2, K3
pair to ground E1, E2, E3
Measuring Ranges:
Resistance Unbalaces - 19.99% to +19.99%
Capacitance Unbalances - 1999 to + 1999 pF &
in two ranges. -19.99 to + 19.99 nF
Indication: 3 Digit Panel Meter with sign
Resolution:
Resistance Unbalance 0.01%
Capacitance Unbalance 1 pF
Test Voltage:
Resistance Unbalance 2 VDC
Capacitance Unbalance 6 VAC
with switchable frequencies 800 Hz & 1 KHz
Minimum Loop Resitance: 1 Ohm
Selection of Parameters: By means of rotary switch on front panel

Measurement Range 0.1 milliohm to 200K ohm in 7 steps
199.9 milliohms, 1.999 ohms, 19.99 ohms, 19.99 ohms,
199.9 ohms, 1.999K ohms, 19.99K ohms, 199.9K ohms,
Accuracy 0.2%, 2 Digit (3 Digit), Mains Operated, LED Display.

As Entertainment of air in limited percentage improves durability of concrete and very low percentages deteriorate it, measurement of air entrapped in freshly mixed concrete becomes important. The use of chemical additives to increase workability of concrete requires an air content check to be made. Air Entertainment meters are used to determine air entertained in freshly mixed concrete by pressure method.

The apparatus consists of a pressure tight-flanged cylindrical measuring bowl of 0.005 cubic meter capacity for maximum size of aggregate 38mm. The bowl is fitted with a removable flanged conical cover assembly with the help of a seal. The conical cover has an air valve and a pet cock for bleeding off the water. A transparent cylindrical stand pipe which is graduated in air content is fixed to the conical cover assembly. Pressure is applied to the specimen with the help of a pressure bulb and the pressure is recorded on the pressure gauge which is mounted on the stand pipe. The whole assembly is mounted on a flat base. The instrument is supplied complete with one each following accessories. Calibration cylinder with spring clamp, Trowel, Tamping rod, Straight edge, Rubber mallet and measure.
Available in following sizes & capacities:
0.005 cubic meter capacity for maximum size of aggregate 38mm.
0.007 cubic meter capacity for maximum size of aggregate 50mm.
0.01 cubic meter capacity for maximum size of aggregate 75mm.
0.1 cubic meter capacity for maximum size of aggregate 150mm.

Range: 0 to 40ppt (40, 000PPM)
Resolution: 0.1ppt
Accuracy (FS): 1%1 digit
Display: 3 Digits LCD
Ambient Temp: 10C to 50C
Power Supply: 9V Battery
Supplied complete with Salinity Probe and instruction manual

For determining the unit weight of aggregate. Made from sheet iron, complete with handle, capacity 10 litres or 20 litres

DCV: 0.4 / 4 / 40 / 400V 0.8%, 1000V 1.0%
ACV: 4 / 40 / 400V 1.0%, 700V 1.2%
DCA: 400 / 1000V 3.0%
ACA: 400 / 1000V 3.0%
RESISTOR: 400 / 4k / 40k / 400k / 4MOhm 1.0%, 40MOhm 2.0%
CAP: 4n / 40n / 400n / 4 F 4.0%
FREQUENCY: 40Hz to 100kHz 2.0%
TEMPERATURE: -40C to 750C 1.0%
DUTY CYCLE: 0.1% to 99.9%
DIODE TEST
CONTINUITY TEST
DATA HOLD

Range: 3 ranges (0 to 20.0 NTU, 0 to 200.0 NTU, and 0 to 1000.0 JTU)
Resolution: 1 JTU
Accuracy: 3 % FS 1 digit
Sample System: 30 mm clear glass tube
Light Source: 6.8 V Tungston Lamp
Detector: Photodiode
Display: 3 1/2 digit LED display
Power Supply: 220 V 10% AC 50 Hz

Available in both Manual & Motorized version for DRY/WET rubbing fastness of textiles, leather & Floor coverings.

These are repulsion type moving iron system having high torque to weight ratio. Instruments are highly damped with best jewel bearings, incorporated with hardened and precisely polished pivots and chemically treated hair springs for corrosion protection. The whole profile looks elegant and in complete harmony with the latest modular design. Ammeters and Voltmeters are available in various current and voltage ranges in panel type in the following sizes:72x72mm, 96x96mm, 144x144mm

This is a compact high reliability 3 1/2 Digit instrument suitable for measurement of resistivity of copper wires from 7/0 SWG to 50 SWG. resistance of cables, windings, coils, heater elements and contact resistance of switches, relays etc. Emphasis in the design of this instrument has been to provide quick, stable and repeatable readings of resistance. The instrument uses 4-terminal measurement so that resistance of test leads and contacts is eliminated from test results. Actual value of resistor is directly displayed on seven segment 12.5mm Display.
RANGE OF MEASUREMENT : 1micro-ohm to 1999 ohm in seven range. INPUT VOLTAGE : 230V AC 10% 10W Approx.