How to Order

Moeller non-toxic, gas actuated dial thermometers are available in remote reading models for commercial and industrial use; models are also available for military applications, and other heavy-duty applications.

Industrial & Commercial Applications: 4 1/2", 8 1/2"
Military application models: 3 1/2", 4 1/2", 8 1/2"

Features:

• Non-toxic gas filling permits safe use in food processing, nuclear installations and similar process applications.
• Shock and vibration resistant construction.
• Anti-parallax white face dials with crisp black figures and graduations.
• Remote reading with up to 125' of stainless capillary tubing protected with spirally wound armor.
• Compensated for ambient temperature changes.
• Linear scales.
• Accuracy within 1% of included scale ranges (or per MIL spec.).
• All models available with matching thermowells in a variety of materials of construction.
• Military models meet or exceed MIL-T-19646 and other applicable MIL specs.
• Balanced adjustable pointers.
• Plain, flanged or threaded bulbs per appropriate MIL spec.
• Yellow background dial faces with black graduations also available.
• Grey finished, solid front safety cases, flush mounting ring per BUSHIPS DWG. #5000-S8700-841569 optional.

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Remote Reading Models for Commercial and Industrial Applications
Dial Sizes: 4 1/2" or 8 1/2"
Available with 3/4" or 1" NPT separable sockets, Van Stone, flanged or weld-in connections

Standard Ranges

Ranges F	Scale Div. F	Ranges F	Scale Div. F
-100 to 100	2	50 to 500	5
-30 to 130	2	100 to 800	5
0 to 160	2	200 to 1000	10
20 to 240	2	400 to 1200	10
50 to 400	5

Standard Ranges

Range C	Scale Div. C
-40 to 60*	1
-30 to 130*	2
20 to 240*	2
50 to 400*	5
50 to 500*	5
* Not available in 8 1/2" case except on special order

Standard Models

Stem Length "A"	4 1/2" Dial Alum. Case	8 1/2" Dial Alum. Case
4"	41202-4	81202-4
6"	41202-6	81202-6
9"	41202-9	81202-9
12"	41202-12	81202-12
15"	41202-15	81202-15
18"	41202-18	81202-18
24"	41202-24	81202-24
Plain Bulb	41202-PB	81202-PB
Air Bulb	41202-AB	81202-AB

Sensing Elements/Materials:
Standard Bulb - 304 Stainless Steel
Plain Bulb - 304 Stainless Steel
Air Bulb - 304 Stainless Steel

Standard Bulb
A STANDARD BULB is made up of the 2 1/4" x 5/8" sensing unit plus a bendable stem on a sliding union connection which is mounted . The STANDARD BULB is provided in variable lengths "A" to match different length sockets - i.e. 4", 6", 9", 12", 15", 18", 24". A 1/2" NPSM sliding union connection is standard but a 1-1/4"-18 sliding union connection can be supplied instead. The STANDARD BULB is used where the sensing element is to be mounted in a socket, hub or flange.

Plain Bulb
A PLAIN BULB is the same as a STANDARD BULB except that the sliding union connection is not included. The PLAIN BULB is provided in a single length as shown; longer lengths are available on special order. The PLAIN BULB is used where the sensing element is not to be mounted in a socket, hub or flange and/or where the stem is to be bent to fit a particular application.

Air Bulb
An AIR BULB is a more sensitive sensing element then the STANDARD or PLAIN BULB but is longer overall and cannot be used in a socket. It is provided in a single configuration. Special supports for AIR BULBS are available - i.e. the split flange or the standoff support.

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Military Models (MIL-T-19646)

Dial Sizes: 3 1/2", 4 1/2", or 8 1/2"

Available with matching thermowells in a variety of materials of construction.

Standard Ranges: 3 1/2", 4 1/2", & 8 1/2" Dials

Code Number Range F Scale Div. F 18 -40 to 180 2 24 20 to 240 2 40 50 to 400 5 55 50 to 550 5 75 55 to 750 5 80 100 to 800 5 21 200 to 1000 10 12 400 to 1200 10

Designed as an alternate to standard MIL-T-19646 Gas Actuated Dial Thermometers with dual sensors, gas & electronic. Can replace standard existing units without installing new thermowells.

SPECIFICATION SHEET

PRIMARY ELEMENT:

Primary element to be gas actuated remote reading thermometer built in accordance with MIL-T-19646 AMD. 7, Dial sizes 3-1/2" & 4-1/2", Bulb ¼" diameter Class C style with ¾-28 Union connection, Insertion length 2" or 4", Capillary length up to 20 feet maximum , Connection back or bottom, Mounting surface or flush panel.

SECONDARY ELEMENT:

Second Element three wire, 100 Ohm Platinum RTD, Alpha= 0.00385, 0.1 Ohm accuracy at 0 Deg C, 1/8 inch diameter.

UNIT FEATURES:

Includes an integral electrical connection ( MS3451W10-3P OR MS3452W10-3P) to mate with cable connector MS3456W10-3S with back shell strain relief M85049/52-1-10W. The cable connector is supplied as part of the unit.

The stem diameter will not exceed 0.379 RTD & Bimetallic inclusive.

The Bimetallic stem & RTD will extend the same length as required to fit existing thermowell with 0.380 bore & 3/4-28 UNS-2 female thread length to be specified by customer in Specification Class # .

1. Model No.
2. Range
3. Separable socket or other connection as required
4. Back or bottom connection
5. Capillary tubing length