ITT Neo-Dyn 100T Betriebsanleitung
NEO-DYN
MODELS 100T AND 100TC
ADJUSTABLE TEMPERATURE SWITCHES,
ENCLOSURE 6N FOR EXPLOSIVE ATMOSPHERES
INSTALLATION AND
OPERATION MANUAL
PN 610-0014 E
Enclosure 6N Temperature Switches Page i
WARNING
CAUTION
NOTE
Manual No. 610-0014 Rev E
Neo-Dyn
28150 Industry Drive
Valencia, CA 91355
Tel: (661) 295-4000
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 12 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.
Indicates a hazard which can cause severe personal injury,
death, or substantial property damage if the warning is
ignored.
Indicates a hazard which will or can cause minor personal injury
or property damage if the caution is ignored.
Indicates additional information about a particular item necessary
to the operation of the unit.
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.
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.
SPECIAL
CONDITIONS
FOR SAFE USE
Page ii Installation and Operation Manual
TABLE OF CONTENTS PAGE
CHAPTER 1 INTRODUCTION.................................................1
OTHER CONFIGURATIONS..................................................2
CUSTOMER SERVICE............................................................2
CHAPTER 2 INSTALLATION AND OPERATION.................3
MOUNTING.............................................................................3
PROCESS CONNECTIONS ....................................................4
PROCESS MEDIA ...................................................................4
ELECTRICAL CONNECTIONS .............................................4
POTENTIALLY EXPLOSIVE ATMOSPHERES
(HAZARDOUS LOCATIONS)................................................5
ALLOWABLE PRESSURES AND TEMPERATURES .........5
CHAPTER 3 ADJUSTMENTS AND TROUBLESHOOTING .7
SETPOINT ADJUSTMENT.....................................................7
TROUBLESHOOTING............................................................8
CHAPTER 4 SPECIFICATIONS ...............................................9
STANDARD.............................................................................9
OPTIONS................................................................................11
WARRANTY INFORMATION.................................................12
Enclosure 6N Temperature Switches Page 1
CHAPTER
1
INTRODUCTION
The Neo-Dyn®Enclosure 6N Temperature Switches described in
this manual are weather and explosion-proof, electromechanical
sensing devices designed for a wide range of applications in
pneumatic and hydraulic systems up to 1500 psig, and for use in
Zone 1 Potentially Explosive Atmospheres (Division 1 hazardous
locations). 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 graphite-filled
non-asbestos packing.
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 11 amp
at 125 or 250 VAC, 5 amp resistive at 28 VDC, or 0.5 amp
resistive at 125 VDC. 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 electrical
subassemblies are listed by Underwrites Laboratories, CSA
International, Factory Mutual and ATEX.
Page 2 Installation and Operation Manual
WARNING
Figure 1: Models 100T and 100TC Enclosure 6N
Adjustable Temperature Switches for Explosion Proof Applications
Hidden lines indicate mounting holes under the cover (see page 3).
Chapter 4 on page 9 contains complete specifications.
OTHER CONFIGURATIONS
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 and electrical limits marked on the units.
CUSTOMER SERVICE
If you have any questions about these 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
(661) 295-4000. 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.
HOUSING COVER 4X COVER SCREW
PROCESS FITTING
1/2-14 NPT MALE
(LOCATED AT END OF
CAPILLARY ON
MODEL 100TC)
TEMPERATURE PROBE
CONDUIT FITTING
1/2-14 NPT MALE
FREE LEADS
18 AWG
18 IN (46 CM) LONG
Enclosure 6N Temperature Switches Page 3
WARNING
WARNING
WARNING
WARNING
CHAPTER
2
INSTALLATION AND
OPERATION
Installation of these Neo-Dyn®Enclosure 6N temperature
switches is straightforward. However, they must be installed by a
qualified electrician, in compliance with all local and national
electrical codes.
Electrical Hazard
Do not make electrical connections while power is on.
Always check for multiple circuits.
Always make sure grounding is adequate.
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.
Page 4 Installation and Operation Manual
CAUTION
WARNING
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.
Avoid excessive torque on all threaded connections.
PROCESS MEDIA
Process media must be compatible with the wetted materials listed
in Chapter 4 starting on page 10. Compatibility is defined by an
“A” rating in the Chemical Resistance Guide for Metals and
Alloys, and, as applicable, the Chemical Resistance Guide for
Plastics or the Chemical Resistance Guide for Elastomers. All are
published by Compass Publications and are available from the
National Association of Corrosion Engineers (NACE), Houston,
Texas; telephone 281 228-6200.
ELECTRICAL CONNECTIONS
18 AWG free leads, 18 inches (48.3 cm) long are standard. See
Figure 2 below for color codes.
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.
Enclosure 6N Temperature Switches Page 5
WARNING
Figure 2. Form C and CC Schematics Shown Below the
Decreasing Setpoint
POTENTIALLY EXPLOSIVE ATMOSPHERES
(HAZARDOUS LOCATIONS)
Suitable for Zone 1, Eex d IIC explosive atmospheres, in
accordance with Potentially Explosive Atmospheres Directive
94/9/EC (ATEX)
Suitable for Division 1; Class 1, Groups A, B, C and D; Class II,
Groups E, F and G hazardous locations, in accordance with the
National Electric Code (NEC), and applicable UL and CSA
specifications.
ALLOWABLE PRESSURES AND TEMPERATURES
Do not exceed the 1500 psig (103.5 bar) Maximum Operating
Pressure (System Pressure) in normal operation.
The 2250 psig (155.1 bar) 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.
RED NC1
BRN C1
BLU NO1
BLK NC2
YEL C2
VIO NO2
GRN
SCREW
RED NC1
BRN C1
FORM CC
FORM C
GRN
SCREW
Page 6 Installation and Operation Manual
Similarly, the marked Proof Temperature is the maximum
temperature the process media could reach in an over-temperature
condition without damaging the switch.
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