ITT NEO-DYN 100T, NEO-DYN 100TC Installation And Operation Manual

NEO-DYN

MODELS 100T AND 100TC

ADJUSTABLE TEMPERATURE SWITCHES;

ENCLOSURE 3X FOR WEATHERPROOF APPLICATIONS

INSTALLATION AND

PN 610-0012 Rev C

OPERATION MANUAL

Manual No. 610-0012 REV C

Neo-Dyn®

28150 Industry Drive

Valencia, CA 91355
Tel: [phone]
Fax: [phone]

World Wide Web: www.neodyn.com

©Copyright 2002

ITT Industries

Important Information

The product warranty applicable to this ITT Neo-Dyn® instrument is as stated on page the last
page of this manual.

Should any after-delivery problems arise, please contact ITT Neo-Dyn’s Customer Service
using the information above. Our normal business hours are weekdays, 7:00 am to 3:30 PM,
Pacific Time.

Before installing this Temperature switch, become familiar with the installation and
adjustment instructions in Chapters 2 and 3

WARNING Indicates a hazard which can cause severe personal injury, death, or substantial

property damage if the warning is ignored.

CAUTION Indicates a hazard which will or can cause minor personal injury or property damage if the

caution is ignored.

SPECIAL CONDITIONS
FOR SAFE USE

The electrical snap switch assemblies shall be installed such that the equipment wiring is

protected from mechanical damage by the use of metal conduit or a method providing
equivalent protection. The equipment wiring must not be subjected to tension or torque. If it is
to be terminated within a potentially explosive atmosphere, a suitably certified termination
facility must be used.

NOTE Indicates additional information about a particular item necessary to the operation of the unit.

This document contains proprietary information, which is the property of Neo-Dyn®, a unit of
ITT industries. This document may not be reproduced, either in part or in full, without the
consent of ITT industries.

Enclosure 6N Temperature switchesPage i

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION ............................................................................................................ 1

CUSTOMER SERVICE .................................................................................................................... 2

OTHER CONFIGURATIONS .......................................................................................................... 2

CHAPTER 2 INSTALLATION ............................................................................................................. 3

MOUNTING ..................................................................................................................................... 3

PROCESS CONNECTIONS ............................................................................................................. 4

PROCESS MEDIA ............................................................................................................................ 4

POTENTIALLY EXPLOSIVE ATMOSPHERES (HAZARDOUS LOCATIONS) ...................... 4

ELECTRICAL CONNECTIONS...................................................................................................... 5

CHAPTER 3 ADJUSTMENTS AFTER INSTALLATION .................................................................. 6

SETPOINT ADJUSTMENT ............................................................................................................. 6

CHAPTER 4 TROUBLESHOOTING ................................................................................................... 7

CHAPTER 5 SPECIFICATIONS .......................................................................................................... 8

WARRANTY INFORMATION .......................................................................................................... 11

Enclosure 6N Temperature switchesPage ii

CHAPTER

INTRODUCTION

The Neo-Dyn® Enclosure 3X Temperature Switches described in this manual are
weather-proof, electromechanical sensing devices designed for a wide range of
applications in pneumatic and hydraulic systems up to 1500 psig. Model 100T has its
temperature sensor mounted on its case, while Model 100TC has a remote sensor,
mounted at the end of a flexible capillary.

The wetted materials of both models include a welded corrosion-resistant steel (CRES)
temperature sensor. Model 100T has a Teflon seal, while Model 100TC has a graphite­filled non-asbestos packing.

1

Setpoint adjustments are easily made through the adjustable range by turning an
adjustment nut located inside the housing.

The standard configuration of these switches will switch up to 15 amp at up to 250 VAC
in a single-pole configuration, and up to 11 amp at up to 250 VAC in a double-pole
configuration. When ordered with M Option, the switch is rated for currents to one amp,
but its bifurcated gold contacts will reliably switch currents in the milliampere and
microampere ranges.

These switches have CE Mark, and they have weatherproof enclosures with IP66 ingress
protection and that meet the requirements of NEMA 3. 3R, 3S, 4, 4X and 13. The internal
switch elements are UL and CSA recognized components.

Enclosure 6N Temperature switchesPage 1

CONDUIT FITTING
1/2-14 NPT FEMALE

HOUSING COVER 4X COVER SCREW

PROCESS FITTING
1/2-14 NPT MALE
(LOCATED AT END OF
CAPILLARY ON MODEL 100TC)

TEMPERATURE PROBE

Figure 1. Models 100T and 100TC Enclosure 3X

Adjustable Temperature Switches for Weatherproof Applications

Pressure Port Configurations Vary with Model and Range

Hidden lines indicate mounting holes under the cover (see Mounting in Chapter 2).

Chapter 5 contains complete specifications for these Adjustable Temperature switches.

CUSTOMER SERVICE

If you have any questions about these Pressure and Temperature Switches that are not
covered in this manual, you can contact Neo-Dyn® or our representatives in several ways.

The Neo-Dyn® customer service phone number is [phone]. Our customer service
department is open from 7:00 am to 3:30 p.m. Pacific Time.

Our Internet site is www.neodyn.com; it includes lists of sales representatives and
distributors.

OTHER CONFIGURATIONS

WARNING The models described in this manual are also available in special and factory-set

configurations. For these units, follow the installation and operating instructions herein,
except adhere to the pressure, temperature, and electrical limits marked on the units.

Enclosure 6N Temperature switchesPage 2

Installation of these Neo-Dyn® Enclosure 3X temperature switches is straightforward.
However, they must be installed by a qualified electrician, in compliance with all local
and national electrical codes

WARNING Electrical hazard
WARNING Do not make electrical connections while power is on.
WARNING Always check for multiple circuits.
WARNING Always make sure grounding is adequate.
WARNING Do not remove switch while under pressure.

CHAPTER

2

INSTALLATION

MOUNTING

Model 100T can be mounted directly to the process connection if there is no significant
vibration and the fluid lines are capable of supporting the weight. It can also be attached
to a flat surface, such as a wall or panel, using .250 in. diameter or M6 socket-head cap
screws through the mounting holes that are accessed by removing the housing cover;
allow .5 in (12.7 mm) screw length above the mounting surface. These holes are located
on two corners of a 2.72 inch (6.91 cm) square, or 3.85 inches (9.77 cm) apart on a 45°
diagonal. Model 100TC must be mounted by this method, as its remote temperature
sensor will not support the housing. Do not overtighten the screws when replacing the cover.

Enclosure 6N Temperature switchesPage 3

PROCESS CONNECTIONS

The process connections are:
Model 100T: ½” - 14 NPT male standard. The .25 in. (6.4 mm) dia. probe extends 3.0 in. (76 mm)
past the end of the pipe thread

Model 100TC: ½” - 14 NPT male standard. The .38 in. (9.7 mm) dia. probe extends 4.50
in. (114 mm) min. from the end of the pipe thread, and can be extended an additional

9.5 in. (241 mm). After this length adjustment, torque the gland nut in the pipe fitting to
230 ± 20 in-lb (26.0 ± 2.3 newton-meters)..

When installing the Temperature switch, always:

 Make sure that the unit and your system have matching threads.
 Use the wrench flats provided.
 Seal all joints with pipe joint sealing compound.

CAUTION Avoid excessive torque on all threaded connections.
WARNING Do not exceed the marked maximum operating pressure in normal operation.
WARNING Do not use as a safety device.

The marked Proof Pressure is provided to give the maximum allowable pressure without
causing permanent damage to the temperature switch in the event of an over-pressure
condition. Set pressure relief/safety valves below this setting.

PROCESS MEDIA

Process media must be compatible with the wetted materials listed in Chapter 5.

Compatibility is defined by an “A” rating in the Chemical Resistance Guide for Metals

and Alloys, the Chemical Resistance Guide for Plastics, and the Chemical Resistance
Guide for Elastomers, all published by Compass Publications, and available from the
National Association of Corrosion Engineers (NACE), Houston, Texas; telephone 281
228 6200.

Enclosure 6N Temperature switchesPage 4

ELECTRICAL CONNECTIONS

RED NC1

BRN C1

BLU NO1

BLK NC2

YEL C2

VIO NO2

GRN

SCREW

RED NC1

BRN C1

FORM CC FORM C

GRN

SCREW

NC BLK

GRN

SCREW

NO VIO

RED NC

BLU NO

An internal terminal block is standard, with a green screw for attaching the ground wire.
See Figure 2 and Figure 3

WARNING All field wiring must comply with requirements of the NEC or applicable local or

national electrical codes, including wire gauges and insulation temperature ratings.

Conduit seals may be required.

Figure 2. Form C and CC Schematics Shown Below the Decreasing Setpoint

Figure 3. Form Z Schematic Shown Below the Decreasing Setpoint

Enclosure 6N Temperature switchesPage 5

CHAPTER

ADJUSTMENTS AFTER INSTALLATION

The factory-set setpoint or adjustable setpoint range is marked on the nameplate of the
switch. This section describes the adjustments needed after an Adjustable Temperature
switch has been properly installed.

SETPOINT ADJUSTMENT

Disconnect the electrical power. Check for multiple circuits.

1. Loosen the screws on the housing cover, and move it aside.

2. Check the setpoints per paragraphs 4 and 5 below for precise adjustments.

3. The adjustment nut can be rotated by hand or with an open-end wrench or similar tool. The

range scale indicates the increasing setpoint and is intended to be used only as an approximate

3

guide. Make precise final adjustments using the measurements described in para Error!
eference source not found. and 5 below.

4. To check the increasing setpoint of a temperature switch, insert the temperature probe

into a fluid bath so that the hex is within 3/8 inch (9.5 mm) of the surface, and also
insert a calibrated thermometer into the fluid next to the probe. Slowly increase the
temperature of the fluid (try not to exceed 5 °C or 9 °F per minute) until actuation is
noted by listening to the audible snap of the Belleville spring, or with an ohmmeter
across the appropriate terminals in the terminal block.

5. If you want to check the decreasing setpoint, slowly decrease the temperature after the switch

has actuated and note the value at which the audible snap or an ohmmeter indicates
deactuation. Deadband may be calculated if desired by subtracting the decreasing setpoint
reading from the increasing setpoint reading.

CAUTION 6. Replace the cover by moving it back into position over the top of the housing and

tightening the screws until the cover is snug against its gasket. Do not overtighten, as
this could damage the gasket.

Enclosure 6N Temperature switchesPage 6

CHAPTER

4

TROUBLESHOOTING

In-service problems are unlikely, but the following paragraphs suggest ways to verify any
problems that might arise:

1. Failure to Switch

If application of temperature 10% greater than the adjusted setpoint fails to produce
actuation, first check for contamination in the process connection, and verify that the
expected temperature is reaching the sensing diaphragm or piston.

If the Belleville spring can be heard to audibly snap, but an ohmmeter indicates no
electrical switching, the cause is probably stuck or burned switch contacts, or the
switch element has moved away from the position where it was synchronized with
the snap action. Return the unit for repair.

If application of temperature 10% greater than the adjusted setpoint fails to produce
an audible snap of the Belleville spring, there is probably a mechanical failure or
binding due to contamination. Return the unit for repair.

2. Calibration Shifts

If it is suspected that the setpoints have shifted, recheck them per Chapter 3. If you
verify unstable or drifting setpoints, return the unit for repair.

Enclosure 6N Temperature switchesPage 7

SPECIFICATIONS

This section shows standard specifications and available options.

STANDARD
Interfaces

Weight: approximately 3 pounds (1.4 kg) each
Conduit Connection: ½” - 14 NPT male
Standard Pressure Port Connection: ½” - 14 NPT female

Listing Agency Approvals

CE Mark All models with option letter X in the part number.

CHAPTER

5

Internal switching elements are recognized components by both UL and CSA.

Part Number

The part number contains information about which configurations and options are
included in your Adjustable Temperature switch. To determine the pressure range,
electrical rating, and options, compare the part number of your unit with the information
in Figure 4 and Table 1.

NOTE: Part number format varies for specials.

Figure 4.. Part Number Breakdown

Enclosure 6N Temperature switchesPage 8

Wetted Materials

Table 1

No

Description

3

300-series CRES with Viton seal, except Teflon seal on Range J (Model 100T)

5

300-series CRES with graphite-filled non-asbestos packing (Model 100TC)

Weather Proof Ratings

Ingress protection IP66
Enclosure type 3, 3R, 3S, 4, 4X, 13 (NEMA)

Pressure Ratings

Maximum Operating Pressure: 1500 psig (103.5 bar)
Proof Pressure: 2250 psig (155.1 bar)

Electrical and Ambient Temperature Ratings

Minimum ambient temperature is -40 °C (-40 °F),
Form C3X (SPDT):
15 amp @ 125 or 250 VAC , 1/8 HP @ 125 VAC,

¼ HP @ 250 VAC, to +70 °C (+158 °F) max;

5 amp resistive , 3 amp inductive @ 28 VDC; .5 amp resistive , .04 amp inductive @ 125

VDC to +85 °C (+186 °F) max.
Form CC3X (DPDT):
11 amp and ¼ hp @ 125 or 250 VAC to +65 °C (+149 °F) max;
5 amp resistive , 3 amp inductive @ 28 VDC; .5 amp resistive @ 125 VDC to+85 °C

(+186 °F) max.
Form C3MX or CC3MX (SPDT or DPDT with M Option):
1 amp @ 125 VAC to +85 °C (+186 °F) max.
Form Z3X (SPDT):
15 amp @ 125 or 250 VAC , 1/4 HP @ 125 VAC,

1/2 HP @ 250 VAC, to +80 °C (+176 °F) max;
5 amp resistive , 3 amp inductive @ 28 VDC; 1 amp resistive , .5 amp inductive @ 125

VDC to +85 °C (+186 °F) max

Enclosure 6N Temperature switchesPage 9

OPTIONS

Table 2

Option

Description

A

Epoxy-painted exterior

M

Gold Electrical Contacts For Extremely Low Current
Applications

W

CRES exterior screws

X

CE Mark

The available options for standard switches are listed below. These options can be
combined; every included option will be indicated in the part number of the unit.

Enclosure 6N Temperature switchesPage 10

WARRANTY INFORMATION

A. Warranty:

ITT Industries (ITT) warrants that at the time of shipment, the products manufactured by
ITT Neo-Dyn® and sold hereunder, will be free from defects in material and
workmanship and will conform to the specifications furnished or approved by ITT.

B. Warranty Adjustment:

If any defect within this warranty appears, the Buyer shall notify ITT immediately.

ITT agrees to repair or furnish a replacement for, but not install, any product which,
within one (1) year from the date of shipment by ITT shall, upon test and examination by
ITT, prove defective within the above warranty.

No product will be accepted for return or replacement without the written authorization
of ITT. Upon such authorization, and in accordance with instructions by ITT, the product
will be returned with shipping charges prepaid by the Buyer. Replacements made under
this warranty will be shipped prepaid.

C. Exclusion from Warranty:

THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER
EXPRESSED OR IMPLIED WARRANTIES OF MERCHANTABILITY, OR FITNESS, OR
OTHERWISE.

Components manufactured by any supplier other than ITT shall bear only the warranty
made by the manufacturer of that product, and ITT assumes no responsibility for the
performance or reliability of the unit as a whole.

In no event shall ITT be liable for indirect, incidental or consequential damages nor shall
the liability of ITT arising in connection with any products sold hereunder (whether such
liability arises from a claim based on contract, warranty, tort or otherwise) exceed the
actual amount paid by Buyer to ITT for the products delivered hereunder.

The warranty does not extend to any product manufactured by ITT, which has been
subject to misuse, neglect, accident, improper installation, or to use in violation of
instructions furnished by ITT.

The warranty does not extend to or apply to any unit, which has been repaired or altered

at any place other than at ITT’s factory or service locations, by persons not expressly

approved by ITT.

Enclosure 6N Temperature switchesPage 11