H.l. Scientific Industries

Ambala Cantt, Ambala, Haryana

Chrome plated brass, various size tubes, each with cutting edge at bottom and handle at top, with cleaning rod.

Set of 6 borers, 4-12 mm.

Set of 12 borers, 4-19 mm.

We bring to customers thin layer chromatography apparatus which is of superior quality and accuracy. The thin layer chromatography apparatus is used to demonstrate the absorption chromatography technique implementing the thin layer. The instrument has moveable applicator with inbuilt thickness ranging from 0 to 2mm with graduations of 0.25mm. features

• available with detailed instruction manual
• stainless steel scriber for marking lines
• available with glass pipette or micro-pipette
• glass sprayer equipped with rubber bellow in capacity of 100ml

construction

• electroplated brass spreader or applicator
• spotting template of perspex
• t.l.c. Plates in five 20cm x 20cm, two 20cm x 5 cm or set of ten 20cm x 10cm, and two 20cm x 5cm
• developing tank has lid
• glass plates supported by perspex base of 114cm x 23 cm dimension
• anodized aluminium plate rack, in ten 20cm x 20 cm, or 20cm x10 cm plates

We offer our customers a wide range of electronic instruments under the name PN Junction/Zener Diode. These are made available in both standard & customized specifications. Some of the features of these process and testing equipment used include:

Other Products

8085 Microprocessor Trainer

• AC moving coil meters
• AC/DC Power Supply 0-50V/4Amp
• Application of Operational Amplifier
• Auto Karl Fischer Titrimeter
• Ballistic Galvanometer
• Basic Logic Gate using discrete components (7 in 1)
• Battery Eliminator
• Black & White Television Demonstrator with 14" CRT
• Bridges
• Colour Television Demonstration with 20" CRT
• Conductivity Meters Microprocessor Based
• CRO Demonstrator 20 Mhz
• Digital Colony Counter
• Digital Dissolved Oxygen Meters
• Digital Filter Photo Calorimeter
• Digital Flame Photometer
• Digital HB Meter
• Digital pH meters
• Digital Spectrophotometer
• e/m by Thomson Method (Bar Magnet Method)
• FET Characteristics apparatus

Model	Equipment	Power Rating
HL-475	Sodium Lamp Transformer	35 Watt
HL-464	Power Supply AC/DC	2-12V/2Amp

Characteristics Apparatus (Forward & Reverse V-l Characteristics):

Objective: To study forward & reverse characteristics of PN Junction Diode and Zener Diode.

Features:

Instrument comprises of

• Two DC power supplies
• Two round meters to measure voltage & current
• 1 PN Junction Diode
• 1 Zener Diode mounted behind panel with option of connections brought out at terminal /sockets

HL-490:

These also come with digital panel meters that provides in them optimum functionality.

Available Range:

Range provided by us include:

• HL-585: Operational Amplifier IC - 741 Trainer with Digital Panel Meter
• HL-413: Battery Charger 2-12 VDC/3 Amp
• HL-425: 0-30 VDC/2 Amp
• HL-539

BH Curve Apparatus:

Objective: To trace Hysteresis curves on CRO using Capacitance, Resistance & Inductance

Features:
Instrument comprises of AC Power Supply 3-15 VAC

• Output selectable using band switch
• Printed circuit diagram for BH curve
• Components connected behind the front panel
• Provision for connecting external inductance
• Input & output connections brought out at sockets

HL-534

Resistance in Series & Parallel Apparatus:

Objective: To verify properties of resistances when connected in series & parallel.

The Single Basket Tablet Disintegration Test Apparatus comes has Tablet Disintegration with Single Disc with six removable glass vessels. The Single Basket Tablet Disintegration Test Apparatus has a stainless steel wire mesh bottom, which dip in water in a beaker of 1000ml kept on the hot plate. Temperature Maintained : 370 C Accuracy : 10C.

We are offering double basket tablet disintegration test apparatus. The double basket tablet disintegration test apparatus works on up and down movement of tablet in medium of water kept at 370c. The apparatus is equipped with clamps, which hold glass vessels, open at both ends and stainless steel wire gauge with rubber rings at the lower end, which dips in water. In addition, two independently and thermostatically controlled hot plate rating of 65watt are fixed on the top of the cabinet, upon which beakers of 1000ml size are net filled with water. In addition, the mains fuse with two digital temperature meters and plug provided. specifications

• steel cabinet
• geared motor
• a horizontal strip with clamp
• temperature is maintained at 370c
• accuracy 10c
• work on 220volt ac mains

To verify the trth table for AND, NAND, OR, NOR, NOT, Ex-Or. Instrument comprises of 5V Power supply for logic '1' & Logic '0'. TTL IC is used for Gate & circuit diagram printed on the front panel & connection brought out at sockets.

Youngs Searles Pattern. Sprit Level mounted in two rectangular cast iron frame with one end resting on point of micrometer screw, fitted in one frame, the second end of sprit level pivoted in the second frame. The micrometer is provided with vertical scale 10 mm, on either sides of the zero and vernier reading 0.01 mm. complete with ceiling bracket having two self centering chucks and tension weight. supplied in case .

To verify the relationship between forces action at a point. Comprises board 65x50cm, with two aluminium pulleys 50mm. dia., on clamp, for mounting in any position. Complete with three hangers iron nickel plated 50gm. and 12 slotted weights of 50gms. each.

This Apparatus is used to measure the time of fall of a steel ball to determine the value of 'g".

Accessories :-

The Apparatus consist of :-

• 1 Base
• 1 Steel Rod
• 1 Gate
• 1 Coil
• 1 Centi Second Timer
• 1 Steel Ball
• 1 Soft Cloth
• 1 Connecting Leads
• 1 Scale

How to use :-

• Fix the rod on the stand.
• Now put the mechanical gate on the rod at lower end near base.
• And then the coil as the upper end.
• Connect the fates and coil tothe timer on the points provided. Respective of colors with the connecting leads.
• Switch on the supply.
• Switch the centi second timer to magnetize and fix the steel ball on the coil.
• Now when the ball is magnetizing switch the timer to demagnetize the ball will release and cross the gate and the timer is shown on the display.
• Now our free fall apparatus is ready to use.

Precaustions :-

• Connect the connecting leads to the timer tightly.
• Carefully adjust the distance between the gate and the coil.
• Clean the apparatus neatly after use.
• Reset the timer every time.

We are engaged in offering an improved model of cooks pole climbing apparatus. The cooks pole climbing apparatus is built in solid state buzzer and stimulator which provide electrical shocks of 400v in pulsating rates0.2ma at a frequency of 5per sec, for duration controlled manually or by built in 30 second timer. Output available for recording on kymograph or polygraph complete to work on 220v ac

Fabricated using the finest grade of Borosilicate Glass, our Distillation Apparatus is widely demanded by labs, schools, colleges etc. Available in different flask capacities our Distillation Apparatus is of the highest quality. We take care to design it precision thus ensuring accurate results.

The present to our clients, stacking plugs. The stacking plugs come with 4mm screw connection for leads, longitudinal and transverse 4mm holes for extra plug connections. In addition, the stacking plugs come in a hard plastic insulating body. colors available

• red
• black
• yellow

Description:-Solvent reservoirs for use with chromatography columns Two sizes available : 50ml for small columns 5000ml for larger columns. Fitted with chemically resistant stopcocks for fine flow control and grease free performance