M. D. Engineering Works

Contact Rating 230V. AC. 0.15 Amps. Blue Pointer for minimum
contact closes with falling temperature or pressure and contact
opens with rising temperature or pressure. 'A' is the temperature
or pressure indicating pointer.
Red Pointer for maximum contact. Contact opens with falling
temperature or pressure and contact closes with rising
temperature or pressure.
Red and Blue Pointers for maximum & minimum contact. Blue
minimum contact B1 closes with falling temperature or pressure.
Red maximum contact B2 closes with rising temperature or
pressure. Band of temperature or pressure between B1 and B2
variable over whole scale range.

dial size : 63, 100, 150, 200, 250 mm circular and concentric.
range : mini. 0-100 mm of water to max. 10000 mm of water
and its equivalent vacuum compound or mbar.

accuracy : ± 1. 5% 1% of span.

capsule : phosphor bronze, brass or stainless steel 304 or 316.

bottom chamber : cast iron or stainless steel dia 7" approx.

movement : non-ferrous.

case & bezel : cast iron stove enamelled black, cast aluminium
weatherproof.

connection : steel, brass or stainless steel 1/2" bsp or as per
requirement.

mounting : direct or bottom entry.

made from brass/s. S. Male
or both sides female ends /
one side male other side
female with wooden handle.
size : 1 / 4", 3 / 8" & 1 / 2" bsp
made from m. S. / s. S. Size : 3 / 8" & 1 / 2" bsp. Suitable for pressure upto 700 ib / in2.
made from brass / s. S. Size : 1 / 4", 3 / 8" & 1 / 2" bsp / npt.

dial size : 100, 150, and 200 mm circular and concentric.
range : 0-1 kg / cm² to 0-30 kg / cm², -76 cm. To 0 hg. Vac. And
-76 cm. Hg vac to 28 kg / cm² or its equivalent in psi.

accuracy : ± 2% or ± 1. 5% of span.

diaphragm : hardened and tempered alloy steel.

diaphragm protection : teflon, silver or stainless steel.

bottom chamber : cast iron, stainless steel 304 or 316.

movement : non-ferrous or stainless steel.

case : cast aluminium or iron black stove finish.

mounting : direct or bracket.

Dial Size : 100, 150, 200, & 250 mm.

Range : 0-1 Kg / cm² to Max. 0-200 Kg / cm² and -76 cm to 30
Kg / cm² ± 1.5% or + 1% of Span.

Accuracy : ± 1.5% or + 1% of span.

Diaphragm : Stainless Steel 304 & 316.

Diaphragm Protection : Teflon.

Top / Bottom Chamber : Stainless Steel 304 & 316.

Case : Cast Aluminium, stove enamelled black, weaherproof.

Connection : 1/2", 3/8", 1/4" BSP or NPT.

Bourdon Tube & Pressure Gauge Connection Material : Brass, Phosphor Bronze or Stainless Steel 304 or 316.

Mounting : Surface, direct or flush panel with back entry.

N. B. Distance type also available on request.

Type : Rigid stem or Distance type.

Dial Size : 100, 150, 200, and 300 mm.

Range : -15° to 50° C, 30° to 50° C, 0° to 50° and upto 650° C.

Accuracy : ± 1% of span.

Bulb & Stem : Steel or Stainless Steel 304 or 316.

Capillary : Steel.

Capillary Armour : Copper, Stainless Steel or Steel spring covered with PVC.

Movement : Non-ferrous or Stainless Steel.

Case & Bezel : Cast Aluminium stoved enamelled black, weatherproof

Connection : 3/4", 1/2" BSP or as desired.

Mounting : Direct or back surface, bracket or flush panel.

Type : Rigid stem and Distance type.

Dial Size : 100, 150, 200, 250 and 300 mm.

Range : -18° C to 400° C

Accuracy : ± 1.5 % of Span.

Bulb And Stem : Brass, Mild steel or Stainless Steel.

Capillary : Copper.

Capillary Armour : Copper, Stainless Steel or Steel
spring covered with PVC.

Case : Cast Aluminium stoved enamelled
black.

Connection : 1/2" BSP or as required.

Mounting : Direct Surface or Flush panel.

dial size : 50, 63, 75, 100, 150, 200, 250 and 300 mm.



range : 0-1 kg / cm² to 0-500 kg / cm², -76 cm to 0 hg. Vac.
and -76 cm hg. Vac. To 28 kg / cm² and its equivalent ranges in psi.



accuracy : ± 1% of fsd.



bourdon : brass or stainless steel 304 and 316.



conn. Material : extruded brass or stainless steel 304 and 316.



movement : non-ferrous or stainless steel.



case : cast aluminium or press steel stoved enamelled black,
weatherproof.



mounting : surface, direct or flush panel.

Inclusion type straight & angle Mercury / Red Alcohol filled. Case : made from Brass / M.S. / Aluminium Immersion : Standard 2" long or as per requirement. Total length : 12" or as per order. Connection : 3 / 8", 1 / 2" or 3 / 4" BSP. Range : - 30 to 400° C.
Straight / Angle Mercury / Red Alcohol filled. Body : Made from Aluminium in golden colour anodise. Stem : Made from Brass / S.S. / M.S. Connection : 3 / 8" or 1 / 2" BSP. Upper Body Size : 4", 6", 8" long. Range : -30 to 400° C.
Mercury or Red Alcohol filled. Dia of capillary : 5 to 7 mm. Total Length : 12". Range : - 30 to 400° C.

ATLAS Temperature Recorder works
on the principle of Mercury-in-steel thermometer.

ATLAS Pressure Recorder works on the principle of Bourdon type Pressure Gauges.