Object : Ethiopia Request for Meteorological Instruments

Dear Sirs,

We kindly ask you to provide us your best offer for the following demand

Your offer should include a mark up of 15% for the Agents.

Best regards

Massimo Bettinotti



Lot- 1 Meteorological Instruments

Meteorological Instruments required to rehabilitate existing and establish new stations.


No. Item Unit Qty.

1. Dry bulb thermorneter Pcs 20

2. Wet Bulb thermometer Pcs 20

Specification ( for 1 &2 ):- Psychrometer thermometer : Mercury-in glass therrnometer ( wet & dry bulb ); Measuring range : -30 to + 50 C divided to 0.2 C Accuracy : -0.1 to +0.2 C

3. Maximum thermometer Pcs 20

Specification Mercury-in glass thermometer with indication of the maximum temperature; Measuring range : -30 to +50 C divided to 0.5 C Accuracy : -0.2 C Iargest difference of errors in the total measuring range 0.3 C

4. Minimum thermometer Pcs 20

Specification :- Liquid-in glass thermorneter with colorless liquid and blue floating index; Measuring range : -40 to +40 C divided to 0.5 C Accuracy : +0.3 C : largest difference of errors in total measuring range 0.5 C

Soil thermometer 1m depht Pcs 20
Specification with in mercury in glass thermometer; Measuring range : -10 to +30 C divided 0.1 C. Accuracy : 0.3 C (-10 C to -50 C ) 0.15 C (-5 C+30 C ) Length :1100mm

Soil thermometer 50 cm depth Pcs 20
Specification with in mercury in glass thermometer; Measuring range : -10 to +30 C divided 0.1 C. Accuracy : 0.3 C (-10 C to -50 C ) 0.15 C (-5 C+30 C )

Length : 600 mm

7. Soil thermometer 20 cm depht Pcs 20

Specification : with mercury in glass thermometer;

Measuring range -15 to 35 C divided to 0,2 C.

Accuracy : below 0 C : O.4 C 0 to 50 C : 0.2 C

Lenght 110mm

8 Soil thermometer 5 cm depht Pcs 20

Specification : with mercury in glass thermometer;

Measuring range -20 to +40 C divided to 0,2 C.

Accuracy : below 0 C : + O.4 C 0 to 50 C : 0.2 C

Length : 110 mm

9. Soil thermometer 5 cm depth Pcs 20

Specification :- with mercury-in glass thermometer;

measuring range : -25 to 45 C divided to 0.2 C

Accuracy : below 0 to + 50 C : + 0.2 C; 0 59 50 C :

0.2 C

Length : 60 mm

10 Thermohygrograph Pcs 20

Specification : Sensing element : Bimetallic strip.

Accuracy : 0.5 C

Measuring range - 10 to 60 C

Clock derive : Spring wound. Drum rotation : 24 hour

and 7 days ( changeable by attached gear )

11 Soil thermograph at 5,10 & 20 cm depth Pcs 20

Specification :- 3-point type

Sensor : Mercury in capillary, with stainless steel

probe. Measuring range : -15 to 50 C.

Accuracy : 1 C

Measuring point : 3 points. Drum rotation; 24 hour

and 7 days ( changeable by attached gear )

12. Ordinary rain gauge Pcs 20

Specification :- Rain gauge made of galvanized sheet metal. The cylindrical top portion is provided with an edged mouth ring made of brass 20 cm in diameter and has funnel, which minimizes the loss of rain caused by splashing. Water collector is about 150mm in diameter and 350 height.

13 Measuring Cylinder Pcs 20

Specification : Length : 36 cm. inside ( diameter : 4 cm.

Division : 0.1 mm

14 Anemometer Pcs 20

Specification Measuring range : 0.4 to 75 m / sec.

Threshold : 0.4 m / sec. Accuracy below 10 m / sec

speed : 0. 1 _m / sec. Accuracy from 10 to 75 m / sec. +

2mn / sec.

15 Rain Recorder Pcs 20

Technical data :

Receiving surface 200 cm2 Recording period 7 days Chart speed : 2.29 mm/h

Accuracy of clock work 50 seconds / day

16 Wind Vane Pcs 20
Specificatioin- Measuring range : 0 to 36 . Resolution :

5.63 . Accuracy : 2.8 . Thresholdd : 0/3 m / Sec.

17 Sunshine duration recorder Pcs 20

Specification :- Measuring range : sunshine duration Degree of latitude : Adjustable. Range of application : 0 to 40 northern or southern hemisphere

18 Class A evaporation pan Pcs. 20

Specification :-

a ) Galvanized iron tank

Dimension : 254 mm high x 1220 mm diameter.

weight : 64 kg.

b ) Still well

Dimension : 215x254x254mm

Weight : 180Kg.

19 Hook gauge for class A pan Pcs 20

Specification :- Dimension : 165 x 115 x 115 mm.

Weight : 340 g.

Range of adjustment : 100 mm

micrometer moves 1 mm per turn and reads to 0.02

mm

20 Piche evaporimeter - with stand and clip Pcs 30

Specification : Water reservoir : 30 mm graduated

every 0.1 m.l

Paper disks : 30 mm diameter evaporating surface 11

cm2 Dimensions : 320 mm high x 14 mm diameter.

Weight ( empty ): 50 g

21 Actinograph : Pcs 20

specification :- Sensor : Black and white bimetallic

stripes. Calibrations : cal / cm2. min. FulI scale : apoprox.

2 cal / cm2 min; Spectrum sensed : 90 / transmission,

0.30 to 2.0 micron wave length; Drum rotation : 7 dayand 24 hours ( changeable by exchange of gear ).
Clock derive : spring wound
22 Chart for termohygrograph * Pcs 3,000.-
23 Chart for automatic ram rccorclcr* Pcs 3,000.-
24 Chart for -soil thermograph* Pcs 3,000.
25 Chart for actionograph* Pcs 3,000.-
26 Sun sbine duration care*
Long curve Pcs / each10,000
Short curve Pcs.10,000.
Straight Pcs 10,000.
27 Filter paper for piche* Pcs 3,000.
28 Muslin for the wet bulb Meter 50.
Note *These charts should be compatible with the Instruments