Chromalox®

Installation, Operation

and

MAINTENANCE INSTRUCTIONS

SERVICE REFERENCE

DIVISION 4

 

SECTION MTO-LT

SALES

(Supersedes PD441)

PD441-1

REFERENCE

 

 

 

161-303567-001

DATE MARCH, 1999

Type MTO-LT

Pipe Insert Immersion Heater

A

B

2-3/8”

Max.Spacer

Expansion Gap

2-1/16”

I.D. Min.

Type E2

Moisture-Tight

Explosion-Resistant

Enclosure

Pipe, Support &

Tank (by others)

3/4” Pipe Outlet

Expansion Gap

GENERAL

 

 

 

 

Dim. (In.)

Pipe

Model

kW

Volts

Phase

A

B

Thd.

MTO-241LT

4

240

1

127

120

2

MTO-241LT

4

480

1

127

120

2

MTO-251LT

5

240

1

163

156

2

MTO-251LT

5

480

1

163

156

2

MTO-275LT

7.5

240

1

211

204

2

MTO-275LT

7.5

480

1

211

204

2

MTO-212LT

11.5

480

1

319

312

2

MTO-213LT

13

480

1

367

360

2

 

 

 

 

 

 

 

WARNING: Calculate and allow for thermal expansion. Pipe insert will expand upon heating. The rear end of the pipe insert must remain free from the tank wall. Heating elements will also expand upon heating and must not extend to the end of the pipe insert.

Chromalox type MTO-LT screwplug immersion heater is designed for insertion into a 2” or larger pipe.

WARNING: It is the responsibility of the purchaser of the heater to make

the ultimate choice of pipe material based upon his knowledge of the chemical composition of the corrosive solution, character of the material entering the solution and controls which he maintains on the process. Chromalox cannot warrant any electric immersion heater against failure, if such failure is the result of corrosion due to improper material selec- tion by the user.

1.Heater Construction Characteristics:

A.High quality resistance wire held in place by compacted Magnesium Oxide Refractory enclosed in an Incoloy® sheath.

B.Low to High Watt densities.

C.Explosion Resistant/Liquid-Tight E-2 terminal enclosures are standard.

WARNING: Users should install adequate controls and safety devices with their electric heating equipment. Where the consequences of failure may be severe, back- up controls are essential. Although the safety of the installation is the responsibility of the user, Chromalox will assist in identifying equipment options.

INSTALLATION

WARNING: Hazard of Shock. Disconnect all power before installing heater.

Expected Low

This Portion of Heater Above Liquid Level and

1.

Before installing, check your type MTO-LT pipe insert heater

2.

for any damage that may have occurred during shipment.

Check to insure that the line voltage is the same as that stamped

3.

on the nameplate.

Do not bend the heating elements. If bending is necessary,

 

consult factory.

4.

IMPORTANT: Mount heater in the tank so that the liquid level

Level of Liquid

Exposed to Air Will Lead to Premature Burnout of Element

WRONG

RIGHT

will always be above the effective heated portion of the heater (see

Figure 1). If the heater is not properly submerged, it may overheat

and damage the heating elements and create a possible fire hazard

due to excessive sheath temperatures.

5. Where work will pass over or near equipment, additional protec-

tion such as a metal guard may be needed.

Expected Maximum

Sediment Level

Note: Locate Heater as low as possible for maximum liquid storage capacity. Heat does not move downward.

Figure 1 - Open Tank Installation

© 2010 Chromalox, Inc.

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Chromalox PD441-1 manual General, Installation
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PD441-1 specifications

The Chromalox PD441-1 is a state-of-the-art temperature control device designed specifically for industrial applications. Renowned for its precision and reliability, this product is at the forefront of temperature management technology. The PD441-1 is particularly valued in sectors such as manufacturing, food processing, and pharmaceuticals, where accurate temperature regulation is critical for operational efficiency and product quality.

One of the main features of the Chromalox PD441-1 is its advanced digital control system. This system boasts a high level of accuracy and stability, providing users with real-time monitoring and adjustments to ensure optimal performance. The device includes an intuitive user interface that simplifies the process of setting and monitoring temperature parameters. Users can easily navigate settings and access historical data, which is essential for compliance and quality control processes.

The PD441-1 incorporates innovative self-tuning capabilities. This technology allows the device to automatically calculate the optimal control parameters based on the specific application and load characteristics. As a result, it minimizes temperature overshoot and energy consumption, leading to significant cost savings over time. Furthermore, the PD441-1 features an advanced alarm system that alerts users to temperature deviations, enabling quick corrective actions to maintain desired conditions.

Another hallmark of the Chromalox PD441-1 is its robust construction. Designed to withstand the rigors of industrial environments, the device is built with high-quality materials that ensure durability and longevity. Its compact design also allows for flexible installation options, making it suitable for a variety of setups.

Integration is seamless with the PD441-1, as it is compatible with various communication protocols, including Modbus and Ethernet. This allows for easy connectivity to existing systems, facilitating centralized control and monitoring. Additionally, the device supports multiple outputs for controlling various heating elements, enhancing versatility across different applications.

In summary, the Chromalox PD441-1 stands out as a leader in temperature control technology. Its advanced digital controls, self-tuning capabilities, robust construction, and seamless integration options make it a preferred choice for industries requiring precise temperature management. By optimizing performance and ensuring reliability, the PD441-1 contributes significantly to operational efficiency and product quality across diverse applications.
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