Rigid Stem Direct Drive Dial Storage Tank Thermometers, 50H Series

Description

The 50H series of Dial Thermometers feature leak-proof construction and smooth, bendable stiff armor for easy installation into jacketed tanks, agitated vessels, and storage tanks where a rigid stem thermometer cannot be used.  Palmer filled system Dial thermometers offer uncompromising accuracy.  Engineered to provide a long service life, direct drive dial thermometers are used in many different applications.  The stainless steel bezel ring and lens provide a weather-tight seal.

Palmer Dial thermometers feature a direct drive double wound bourdon coil.  The pointer shaft is operated directly from the center coil in this design, eliminating the conventional sector and pinion movement and the multiplying mechanism, both subject to wear and tear and leading to inaccuracy over time. Our direct drive double wound bourdon coil is a unique feature resulting in an extremely responsive temperature indicator that will maintain accuracy for years.  Every Palmer Dial thermometer has an easy to read scale, constructed with high contrast black numerals, graduations, and pointer to minimize reading errors.

Choose between Liquid and Mercury actuated systems.  Liquid actuated systems are filled with non-toxic, non-hazardous, organic liquid that is odorless and non-flammable and has proven to be an excellent replacement for Mercury. Liquid actuated systems are available in temperature ranges up to 500°F or 280°C.

Mercury actuated systems*

*Mercury is prohibited in some states and countries.  Know your local regulations.

Mercury Free Option

Specifications

Form

Adjustable All-Angle Case can be locked for the best reading angle

Case

Polished 316 Stainless Steel Case. 5 inch Dial (127 mm).

Fill

Liquid Actuated < 500°F
Mercury Actuated > 500°F

Dial Face

Black Graduations and Numerals on White Background. Linear Scale with High-Visibility Tapered-Tip Black Pointer.

Bezel

Stainless Steel Bezel Ring

Lens

Standard: Gasket Sealed Glass Cover
Optional: Plexiglass

Fitting

1-1/4 inch UNEF-18 Swivel Nut Nickel Plated Brass.
Optional fittings available.

Union

Optional 3/4 inch or 1 inch NPT Brass Union available.

Capillary

3/16 inch diameter Stainless Steel Bendable Stiff Armor

Capillary Length

5 feet (1524 mm) - standard
6 feet (1828 mm)
7 feet (2133 mm)
8 feet (2438 mm)
9 feet (2743 mm)
10 feet (3048 mm)
11 feet (3352 mm)
12 feet (3657 mm)
13 feet (3962 mm)
14 feet (4267 mm)
15 feet (4572 mm)
Liquid Actuated systems limited to 15 feet of capillary.
Mercury Actuated systems available with up to 50 feet of capillary.

Bulb

1/2 inch diameter stainless steel bulb. 6 inch length standard.

Temperature System

Case Compensated System with Double Wound Direct Drive Bourdon Coil.

Accuracy

± One scale division

Temperature Ranges

Fahrenheit Ranges:
-100° to 100°F, 2° Scale Divisions, Liquid Actuated
-30° to 130°F, 1° Scale Divisions, Liquid Actuated
30° to 180°F, 1° Scale Divisions, Liquid Actuated
0° to 150°F, 1° Scale Divisions, Liquid Actuated
0° to 240°F, 2° Scale Divisions, Liquid Actuated
0° to 300°F, 2° Scale Divisions, Liquid Actuated
0° to 400°F, 5° Scale Divisions, Liquid Actuated
0° to 500°F, 5° Scale Divisions, Liquid Actuated
0° to 600°F, 5° Scale Divisions, Mercury Actuated
0° to 750°F, 5° Scale Divisions, Mercury Actuated
200° to 750°F, 5° Scale Divisions, Mercury Actuated
200° to 950°F, 5° Scale Divisions, Mercury Actuated
200° to 1200°F, 10° Scale Divisions, Mercury Actuated

Celsius Ranges:
-60° to 40°C, 1° Scale Divisions, Liquid Actuated
-30° to 60°C, 1° Scale Divisions, Liquid Actuated
-10° to 80°C, 1° Scale Divisions, Liquid Actuated
-10° to 120°C, 1° Scale Divisions, Liquid Actuated
-10° to 150°C, 1° Scale Divisions, Liquid Actuated
0° to 220°C, 2° Scale Divisions, Liquid Actuated
0° to 280°C, 2° Scale Divisions, Liquid Actuated
0° to 320°C, 2° Scale Divisions, Mercury Actuated
0° to 400°C, 2° Scale Divisions, Mercury Actuated
100° to 400°C, 2° Scale Divisions, Mercury Actuated
100° to 500°C, 5° Scale Division, Mercury Actuated

Options

Dual Range Scale
Plexiglass Cover
7/8 inch -22 Swivel Nut Fitting
316 Stainless Steel Fitting and Stem