Specification

Minimum & Maximum Thermometer: German Type 0 to 50˚ C

Spirit and mercury filled, movement of mercury in U bend, consequent upon expansion or contraction of the spirit, forces steel spring indices along the bore. Reading is ken at lower end indices is reset by supplied magnet. Accuracy +/ o.5˚ C. mounted on metalic machine divided scale in brass metal case. Best quality.

Specification

Manufactured as per IS: 5225: 1969. Rain Gauge is manufactured from non-corrosive fiber glass reinforced plastic container. It consists of collector assembled with gun-metal Rain. Funnel. Locking Rings and Base/ the Rain Gauges supplied with 4-liter/2 liter plastic bottle and measuring cylinder. Rain Gauges are available in two different capacities 100 sq. cms collected area and 200 s. cms collected area.

This pan Evaporimeter is manufactured as per IS : 5973: 1970. The pan is manufactured from pure copper, duly tinned and epoxy pointed and tested for water leakproofness. The stilling well and thermometer clams are manufactured from Brass. This is supported on wooden platform and covered with reinforced chicken mesh. Measuring Jar is manufactured from transparent Acrylic also available is bran. This Pan evaporimeter is also available in galvanized Iron.

Specification:

This is the most common type of suspended sediment sampler. It consists of a metallic frame at the end of a flexible wire running with help of one spring and lever for opening and closing the mouth of bottle fitted with rubber cork during sampling. The sampler has advantages of low cost, simplicity in design and operation, but it has also some draw backs, such as:

1. The direction of intake is vertical and direction of intake remains perpendicular in the flow.
2. There is no pressure equalizing system in the sampler. Therefore, the sample is collected initially by sudden in rush and than by vertical filling.
3. There is high turbulence and the point of intake and air exit is not separate. and accordingly, the point of intake lies within the body of the sampler.     

PRECAUTIONS

• Keep the sampler vertical and direction of the frame holding the bottle perpendicular to the stream flow.
• Open the mouth of the bottle when the requisite depth is reached and for the minimum times required filling the bottle.

Purpose

For measurement of pH of samples and solutions in a Laboratory

Specifications:

Functions : pH mV
Display : 4 digit LED
Power supply : 220 VAC +/-10 % 50 Hz
Range : 0 TO 14 pH ,0 to +/- 1999 mV
Resolution : 0.01 pH ,,0.1 % Full scale mV.
Temp. compensation : 0 to 100 ˚ C manual and automatic

Accessories :

• one each glass and calomel electrode
• electrode stand & clamp
• dust cover
• operation manual

SPECIFICATION

An electrically operated sampler for collection of suspended sediment at any point beneath the surface of taking a sample consciously over a range of depth.

The sampler is the streamlined and equipped with tail-fins to orient it in the stream the sampler head is hinged to provide across from a point bottle sampler project in to the current from sampler head .An exhaust port is  provided to permit escape of out  from the sampler container as filled .

With the sample an electrically actuated value mechanism to start & stop the sampling process is located in the sampler head. The value has two positions:

1. The equalizing position for balancing the pressure in the sampler container with the hydrostatic pressure
2. The sampling position.

The valve is held in the equalizing position by a spring. A solenoid when electrically energized holds the value in the sampling position .The compression chamber in the body of the sampler permit operation to depths 55 meter A DC supply of about 36 volts is required to operate the solenoid a battery pack supply power upto 48 V Encl. sampler as shipped in Metal. crying case suitable for storage & transport.

Type                                                        Specification
Metallic                                                    cast Bronze
Net weight                                                45 kg (Approx.)
Dimensions                                              710-mm long

Specification

Grading particles in the range 0.6 mm to 0.06 mm, a siltometer like the optical lever siltometer or the Puri;s siltometer is used . Where the bulk of material lies within this range, this method gives more accurate results than sieving.

The optical lever siltometer and Puri;s siltometer are based on the principal of settling rate of particles in column of liquid (usually water). The method of analysis by optical lever siltometer method is an incremental method. It determines Indirectly the rate of chain of concentration of the suspension at a known vertical distance below the upper surface of the suspension. Puri’s siltometer method is a cumulative method.

Puri`s Siltometer determines directly the rate of accumulation of the material by measuring the deposited sediment at the bottom of the tube. In the operation of this siltometer, assumptions are made that the particles to be measured are evenly distributed at the start of the experiment and have the same density. Furthermore, there is the implicit assumption that the fall velocity of each particle is independent of the others, a condition which is considered applicable if the concentration of the particles is not high (say up to 2%, although up to 5%such methods may be used). The particles of the different sizes fall through the column of water with different velocities. The size distributions of the particles varies all along the length of the suspension and the concentration decreases as the sedimentation continues..

For a point at a distance from the surface at a given time from the beginning of the sedimentation, some of the particles pass below this and approach the bottom. The sediments concentration and consequently, the density, the density of the liquid column above the point is reduced. Therefore, the pressure at the point decreases. Suitable relations may be derived to determine precisely the size distribution of the particles at any point at any time in terms of change of pressures at the point with time .

FEATURES:

1. High accuracy.
2. Elegantly designed.
3. Tropicalized

SPECIFICATION

Rain Gauge Recording Type : this natural siphon type recording rain gauge is designed to give continuous record of rain fall. It is generally used in conjunction with an ordinary rain gauge ( non recording type ) exposed close by. Rainwater enters the gauge at the top of the cover and is carried through the funnel to float chamber provided with a float. The recording pen is mounted on the stem of the float. As the water level rises in the receiver, the float rises and the pen records rain on a chart placed on a clock drum which revolves once in 24 hours.
The recording mechanism is mounted on the base and the base cover is provided with a gunmetal rim of about 203 mm. Dia. The funnel lifts of the base and carries a hasp, which is engaged with a staple on the base and pad locked. An angle iron piece with foundation bolt is provided for anchoring the rain gauge base to the ground. The dimensions of the base, collector, funnel, float chamber float chamber, float etc. are as per ISI specification and also as per IMD specification.
The unit is supplied with 100 graph paper sheet, a phial of special recording ink, recording pen, filter, clock movement with drum and key, float chamber with float, foundation angle iron and literature booklet.

(a) Spare Rain Gauge Charts: per packet of 100 chart sheets.

(b) Spare Recording Ink: phial containing about 20 ml. of the special type of ink.

Specification

The Sunshine Recorder is an instrument is use for accurately measuring the duration of right sunshine at a place. There are various type of an models of sunshine recorder available but the campboll Strokes Pattern which used for the focused heat radiation from the sun a trace on the chart is preferred and widely used. There are three types of camp ball strokes patterns of sunshine recorders mainly used in tropical. Temperate and pollar latitude but tropical pattern of sunshine recorder as drawn up by the Indian meteorological Department is extensively used in India which generally confirm to IS Specification: 7243-1974.
 
DESCRIPTION :

The sunshine recorder consists of a glass sphere mounted concentrically in a section of a Spherical bowl the diameter of which is such that when the instruments is exposed to the sun’s rays, they are focused sharply or a card held in greeves in the bowl to take cares suitable for different season of the years. The instrument is mounted on a heavy base made of marble or similar stone the sphere is held in position in side a sphere supported by sphere center and sphere axis, the sphere support with glass sphere and bowl can be tilted, adjusted and clamped at such an angle as the latitude of the station. The sharply focused sun’s rays burn a trace on the card which has a time scales printed on it. The length of the burn indicates the period of bright sunshine during the day.

SPECIFICATION:
Generally confirming to IS : 7243-1974
                        Focal length                       :           74.9 ± 0.25 mm
                        Diameter of Sedium Light   :           1.512 mm
                        Range                                :           74.4 to 75.4 mm
                        Dimensions                         :           24 x 19x 47 cms
                        Latitudes                             :           50 to 400   

This Sun Shine Recorder is manufactured as per IS : 7243 : 1974. Basic Main Components are bowls which are manufactured from Bronze as per I.S.: 306 : 1968 and are precisely machined and assembled and air bubble free glass having good surface finish.  The instrument is always supplied with one-year recording graph and standard stenciled curve for Comparison.

Sampler is an improved design. The d-49 is heavier (about 60 pound) and more stable in high velocity or turbulent flow. It is easier to operate, more rugged, and cheaper to manufacture. The d-49 samples to the same depth but is adapted to slightly higher velocities than the d-43.the sampler, which is shown in figs. 24and 25, has a cast bronze streamlined 24 in. long, in which the sampler container is enclosed. Integrally –cast- tail vanes orient the instrument in the stream flow .the nose of the sampler is drilled and tapped foe intake nozzles.

Cup type water current meter used for determining velocities of flowing water in open channels and streams has been manufactured to meet the requirements of I.S.3910.

The cup type water current meter consist of six cup assembly having six cups mounted on a vertical shaft. This shaft is held  vertical in a yoke frame on two pivot points .

This yoke frame while holding the moving assembly protect its cups from damage from the Floating bodies in flowing water also. The vertical shaft rests on a pivot point at the lower end, which is adjustable. The upper end is held in position at a pivot point inside the magnetic contact Chamber, which is made water tight by a cap. The magnetic contact chamber is equipped with two contact switches the terminals of which are located out side on the body of the contact chamber. Only one switch is used at a time, the other is a spare and stand by switch and can be used immediately, if one goes out of order. The other  end  of the contact terminal (earth) is the yoke frame  itself   and so a common earth terminal has been provided on the yoke frame .

 The bucket wheel rotates in between two pivots in the yoke frame. Each one revolution of the bucket wheel makes a contact of the magnetic switch in the magnetic chamber which can be recorded on a counter. The yoke frame consist of a tail fin with a balance weight, which moves in a slot and can be adjusted at any place within slot. The balancing weight is so adjusted so as to keep the current meter horizontal when suspended in water. The tail fin keeps the yoke frame with the bucket wheel to the upstream direction as the tail fin goes to downstream direction with the flow of water. The meter is suspended in water with the help of a suspension flat in deep water, and by a suspension wading rod in shallow water.

SPECIFICATION    

The propeller  type water current meter  used for  determining Velocities  of flowing water  in open channels and streams has been manufactured to meet the  requirements of I.Ss.3910.  The propeller type water current meter consist of a bled type wheel assembly having four bled mounted on a horizontal shaft.  This shaft is held horizontal in a yoke frame on two pivot points. This yoke frame while holding the moving assembly protect its bled from damage from the Floating bodies in flowing water also.  The horizontal shaft rest on a pivot point at the lower end, which is adjustable.  The upper end is held in position at a pivot point in side the magnetic contact Chamber, which is made water tight by a bled.  The magnetic contact chamber is equipped with Two contact switches the terminals of which are located out side of the body on the contact chamber. Only one switch is used at a time, the other is a spear and stands by switch and can be used immediately.  If one goes out of order.  The other end of the contact terminals (earth) is the yoke frame it self it self and so a common earth terminal has been provided on the yoke frame.

       The bucket wheel rotates in between two pivots in the yoke frame.  Each one revolution of the wheel makes a contact of the magnetic switch in the magnetic chamber which can recorded on a counter. The yoke frame consist of a tail fin with a balance weight, which moves in a slot and can be adjusted at any place with in slot. The balancing weight is  so adjusted so as to keep the current meter horizontal when suspended in water.  The tail fin keeps the yoke frame with the bucket wheel to the upstream direction as the tail fin goes to downstream direction with the flow of water..  The meter is suspended the water with the help of a suspension flat in deep water and by a suspension rod in shallow water

CALIBRATION BY Govt. Department

THE CURRENT METER CONSISTS OF THE FOLLOWING  ACCESSORIES :

1. Water Current Meter with one spear pivot.
2. Taibar about 30 C.M. long  Cap. 100 kg.
3. Suspension Rod 120 C..M. long (Extra Charge)
4. Connection wire with clip 10 M long (Extra Charge).
5. Wire rope 10 M   long with connecting clip (Extra charge)
6. Fish weight of 10 Kg (Extra charge)
7. Screw Drivers 2 Nos.
8. Spanner wrench 1 No.
9. Oil  can with machine oil 30 ML.
10. Duster 1 No.
11. Calibration chart by UA Bahadrabad, Roorkee.
12. Digital  Electronic Counter   (Extra charges)
13. Wire rope 10 M long with connecting clip (Extra

Specification

Water current meter Pigmy cup type used for determining velocities of flowing water in open channels and streams has been manufactured to meet the requirements of I.S.3910.

The cup type water current meter consists of a six-cup assembly having six cup mounted on a vertical shaft. This shaft is held  vertical in a yoke frame on two pivot points .

This yoke frame while holding the moving assembly protects its cups from damage from the Floating bodies in flowing water also. The vertical shaft rest on a pivot point at the lower end, which is adjustable. The upper end is held in position at a pivot point in side the magnetic contact Chamber, which is made watertight by a cap. The magnetic contact chamber is equipped with contact switch the terminals of which are located out side of the body on the contact chamber. The other end of the contact terminals (earth) is the yoke frame itself and so a common earth terminal has been provided on the yoke frame.

 The bucket wheel rotates in between two pivots in the yoke frame. Each one revolution of the bucket wheel makes a contact of the magnetic switch in the magnetic chamber, which can be recorded, on a counter. The meter is suspended in water with the help of a suspension-wedding rod in shallow water.

The Current Meter Consists of the Following Accessories :

• Water Current Meter Sensor 
• Suspension wading Rod 120 C.M. long.
• Connection wire with clip 5M. Long.
• Screw Drivers.
• Oil can with machine oil.
• Duster 1 No.
• Digital Electronic Counter. (Extra Cost)
• Calibration Table (Extra Cost)

The water level sounder shall consists of a cable reel of not less than 3o meters 40 meters, 60 meters, 90 meters and 150 meter Long and shall comprise of two insulated wire bared at the contact and which passes through a weighed probe of any suitable material. The water level indicator unit shall have the complete cable reel carrying case, battery operated indicator unit, a spool with slip rings and bushes connecting the free ends of the insulated wire to the indicator. The reading shall be taken to the accuracy of 5 mm by measuring tape.

Specification

The water sampler is an uncomplicated and very simple instrument for taking water samples for analysis and investigation purposes.

The sampler consists of a holder device and exchangeable 1 litter capacity Aluminum bottles as sampling vessel which can be used upto 50 Mt. Water depth. The sampler is attached to a galvanized steel wire rope and lowered into the water-enclosed configuration in order to prevent sample contamination by surface water. The sampler is opened by a covered stainless steel wire open reaching the desired water depth the stainless steel wire is pulled and kept pulled for 1 minutes time to allow when the bottle are filled up say in 12-15  minutes the water sampler is taken out after releasing the opening stainless steel wire to close the bottles.

NOTE : for lowering the instruments a winch system is also required.

It meets three important requirment for accurate indication of wind direction .
It is designed to produce the  maximum torque relative to its moment of inertia ,for a given charge in wind directions it rotates with the minimum of friction ,and is balanced to avoid  bias towards any particular direction .Most suitable for mounting on buildings and very useful for Meterological departments. As per I.S.I. specification with cardinal points on cast iron stand .

Specification

Steel Wire Rope Galvanized 

 Size- 7 X 19 G.I with wire 26 SWG (Tested)

Ropes are properly tested and will be supplied with works test certificate