ITT NEO-DYN 100P ENCLOSURE 7 Installation And Operation Manual

NEO-DYN

MODEL 100P ENCLOSURE 7

ADJUSTABLE EXPLOSION-PROOF PRESSURE SWITCH

INSTALLATION AND

OPERATION MANUAL

PN 610-0006 Rev F

100P Enclosure 7 Adjustable Pressure Switch Page i

WARNING

CAUTION

NOTE

Manual No. 610-0006 Rev F

Neo-Dyn

28150 Industry Drive

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

World Wide Web: www.neodyn.com

Copyright 2002

ITT

Important Information

The product warranty applicable to this ITT Neo-Dyn® instrument
is as stated on page 17 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 Adjustable Pressure 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.

The electrical wiring must be connected to the switch by means of
conduit or flameproof cable gland certified to BS EN 60079-1.
The electrical wiring must be 105 °C rated minimum copper
conductors only. If replacement of the setscrew that secures the
threaded cover of the electronics housing is necessary, it must be
replaced with a 0.138-32 UNC-2A (6-32) Hex Socket Head Cap
Screw, 300 series CRES or CAD Plated Grade 5 Steel.

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.

SPECIAL

CONDITIONS

FOR SAFE USE

100P Enclosure 7 Adjustable Pressure Switch Page ii

TABLE OF CONTENTS

PAGE

CHAPTER 1 INTRODUCTION ................................................. 2

CUSTOMER SERVICE............................................................ 3

CHAPTER 2 INSTALLATION .................................................. 4

MOUNTING ............................................................................. 4

PRESSURE CONNECTION .................................................... 4

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

CHAPTER 3 ADJUSTMENTS AFTER INSTALLATION ....... 8

ADJUSTMENTS ...................................................................... 8

CHAPTER 4 TROUBLESHOOTING ...................................... 10

CHAPTER 5 SPECIFICATIONS ............................................. 12

STANDARD ........................................................................... 12

OPTIONS ................................................................................ 16

WARRANTY INFORMATION ................................................. 17

100P Enclosure 7 Adjustable Pressure Switch Page 1

100P Enclosure 7 Adjustable Pressure Switch Page 2

CHAPTER

1

INTRODUCTION

The Neo-Dyn® Model 100P Enclosure 7 Adjustable Pressure
Switch is an explosion-proof, electromechanical pressure switch
designed for a wide range of applications in pneumatic and
hydraulic systems up to 3,000 psig. The most common wetted
materials include a polyimide (Kapton) sensing diaphragm, nitrile
O-ring, and aluminum alloy or corrosion resistant steel (CRES)
pressure port. CRES diaphragms and all-welded construction are
also available for corrosive pressure media.

Setpoint adjustments are easily made through the adjustable range
of the Pressure Switch using either the increasing or decreasing

handles. These handles are accessed by removing the unit’s front

cover.
Model 100P Enclosure 7 may be ordered to switch 125 to 600

VAC, or 28 to 125 VDC, with currents from microamperes to 15
amperes.

100P Enclosure 7 Adjustable Pressure Switch Page 3

Figure 1. Model 100P Enclosure 7

Adjustable Pressure Switch for Hazardous Locations

The standard electrical conduit connections are ¾” - 14 NPT
female. The standard pressure connection is either a ¼” - 18 or
½”-14 NPT female port; see Chapter 2.

Chapter 4 on page 12 contains complete specifications for the
100P Enclosure 7 Adjustable Pressure Switch.

CUSTOMER SERVICE

If you have any questions about the 100P Adjustable Pressure
Switch that are not covered in this manual, you can contact Neo­Dyn in several ways.

The 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.

100P Enclosure 7 Adjustable Pressure Switch Page 4

WARNING

WARNING

WARNING

WARNING

CHAPTER

2

INSTALLATION

Installation of Model 100P Enclosure 7 is straightforward.
However, this Adjustable Pressure Switch 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

The Adjustable Pressure Switch can be mounted directly to the
pressure connection if there is no significant vibration and the
pressure lines are capable of supporting the weight, or it can also
be attached to a flat surface, such as a wall.

Space the Range 1 unit at least .375 inch (0.95 cm) from the
mounting surface, or allow the pressure fitting to overhang an
edge of the mounting surface.

PRESSURE CONNECTION

The standard pressure inlet for model 100P Pressure Switches is

either a ¼” - 18 NPT female pipe thread for Wetted Material 1
(aluminum alloy port), or ½” - 14 NPT female pipe thread for

Wetted Materials 4, 5, 7 and 9 (CRES port). When installing the
100P Adjustable Pressure Switch always:

100P Enclosure 7 Adjustable Pressure Switch Page 5

CAUTION

WARNING

NOTE

 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.

Do not exceed the marked Maximum Operating Pressure in
normal operation.

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

ELECTRICAL CONNECTIONS

One terminal block is located on the inside of the unit.
Electrical connections are made through either of the two

¾”-14 NPT conduit openings. Model 100P Enclosure 7 is shipped
from the factory with a threaded plug in one of these conduit
openings. This plug is suitable for use in hazardous locations.

All field wiring for Model 100P must comply with requirements
of the NEC or applicable local electrical codes, including wire
gauges and insulation temperature ratings. Conduit seals may be
required.

With no power to the wires, remove the unit’s cover, move the

insulator flap to the side (exposing the terminal block), and
connect the wires to the terminal block. (See Figure 1.) There are
three ways of wiring model 100P Enclosure 7, depending on
which Electrical Form the unit is; Figure 2 shows the electrical
schematics for Forms CC, C, and Z.

On forms C and CC, it is not mandatory to connect both NC and
NO wires to the switch.

Return the the insulator flap to its position over the terminal
block. If the setpoints are not to be adjusted at this time, reinstall
the unit’s cover, making sure that it is bottomed and compressing
its O-ring.

100P Enclosure 7 Adjustable Pressure Switch Page 6

Figure 2. Schematics Shown at Zero PSIG

100P Enclosure 7 Adjustable Pressure Switch Page 7

100P Enclosure 7 Adjustable Pressure Switch Page 8

WARNING

CHAPTER

3

ADJUSTMENTS AFTER

INSTALLATION

This section describes the adjustments needed after the Adjustable
Pressure Switch has been properly installed.

Pressure settings are internally adjustable using the adjustment
handles.

Never remove the cover in a hazardous environment with the
power on.

ADJUSTMENTS

1. It is recommended that the unit be in a non-hazardous

location during adjustment.

2. Disconnect the electrical power. Check for multiple circuits.

3. Remove the access cover. Lift the insulator flap that contains

the adjustment diagram, exposing the adjustment handles.

4. To change the setpoint, the adjustment spring handles can be

manipulated by hand or with a small-shafted screw driver or
similar tool inserted into the end of the desired handle. The
handle for decreasing the setpoints is next to the housing wall
adjacent to the pressure port; the other handle, closer to the
center of the housing, increases the setpoints. See Figure 1.

100P Enclosure 7 Adjustable Pressure Switch Page 9

CAUTION

5. Rock the appropriate handle back and forth, to rotate the

adjustment nut to increase or decrease load on the internal
adjustment spring. The silver-colored range scale, visible past
the end of the adjustment nut, gives an approximate value of
the increasing setpoint. For precise adjustment of the
increasing or decreasing setpoint, check the setpoints with a
calibrated pressure gauge.

6. To check the setpoint, connect a pressure source (and a

calibrated pressure gauge if desired) to the pressure port and
slowly apply increasing pressure until the switch actuates.
Actuation can be noted by listening to the audible snap of the
Belleville spring, or with an ohmmeter across the appropriate
terminals of the terminal block.

7. If you want to check the decreasing setpoint, slowly decrease

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

Replace the cover onto the unit and tighten it until it is snug
against the O-ring. Do not overtighten the cover, as this can
make it difficult to remove later.

8. Tighten the setscrew.

100P Enclosure 7 Adjustable Pressure Switch Page 10

CHAPTER

4

TROUBLESHOOTING

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

1. Leaks

If a leak is suspected, connect the pressure switch and a
calibrated pressure gauge downstream from a pressure source
and shutoff valve. Apply normal system pressure, isolate the
gauge and Pressure Switch from the pressure source with the
shutoff valve for at least one minute, and check for leaks as
evidenced by a drop in the gauge reading.

Leaks may be repaired by replacing the sensing diaphragm
and O-ring (wetted materials 1 and 4 only). Contact ITT for
replacement parts and instructions, or return the unit to ITT
for this repair.

2. Failure to Switch

If application of pressure 10% greater than the adjusted
setpoint fails to produce actuation, first check for
contamination in the pressure line, and verify that pressure is
reaching the sensing diaphragm. 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, and the switch element needs to be replaced.
Return the unit to ITT for this repair.

100P Enclosure 7 Adjustable Pressure Switch Page 11

If application of pressure 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 to ITT for repair.

3. Calibration Shifts

If it is suspected that the setpoints have shifted, recheck them
per paragraphs 6 and 7 of Chapter 3. If you verify unstable or
drifting setpoints, return the unit to ITT for repair.

100P Enclosure 7 Adjustable Pressure Switch Page 12

CHAPTER

5

SPECIFICATIONS

This section shows the standard specifications and available
options for the 100P Adjustable Pressure Switch.

STANDARD
Interface

The Model 100P Enclosure 7 weighs approximately 4 pounds
(1.8 kg).

¾” - 14 NPT Conduit Connections
¼” – 18 or ½” - 14 NPT Female Pressure Port

Temperature Range

Ambient: -40°F (-40°C) to +167°F (+75°C)
Media: -40°F (-40°C) to +300°F (+149°C)

Listing Agency Approvals

UL
CSA
ATEX
CE Mark

100P Enclosure 7 Adjustable Pressure Switch Page 13

Part Number

The part number contains information about which configurations
and options are included in your Adjustable Pressure Switch. To
determine the pressure range, electrical rating, and options,
compare the part number of your unit with the information below
in Figure 3.

100P 1 2 CC 7 BM
Model Series
Wetted Material
Range Number
Electrical Form
Explosion Proof Housing
Options

Figure 3. Part Number Breakdown

Pressure Ratings

Table 1

Part No

Range

No

Max Operating

Pressure,
psig (bar)

Proof Pressure

PSIG (bar)

100P*1*7*

1

600 (41.37)

1000 (68.95)

100P*2*7*

2

3000 (206.85)

5000 (344.8)

100P*4*7*

4

3000 (206.85)

5000 (344.8)

100P*5*7*

5

3000 (206.85)

5000 (344.8)

100P*7*7*

7

3000 (206.85)

5000 (344.8)

100P*8*7*

8

3000 (206.85)

5000 (344.8)

* See Figure 3 above for part number breakdown

100P Enclosure 7 Adjustable Pressure Switch Page 14

Actuation Points

Table 2

Adjustable Set Point Range PSIG (KPAG)

Range No

Increasing,

psig (bar)

Decreasing,

psig (bar)

Deadband Approx.,

psi (bar)

1

5 to 75

(0.35 to 5.2)

2.3 to 73.3

(0.15 to 5.0)

2.7 (0.2)

2

15 to 150

(1.0 to 10.3)

9 to 144

(0.6 to 9.9)

6 (0.4)

4

50 to 300

(3.4 to 20.7)

36 to 286

(2.5 to 19.7)

14 (1)

5

125 to 600

(8.6 to 41.4)

100 to 575

(6.9 to 39.6)

25 (2)

7

500 to 1500

(34.4 to 103.4)

440 to 1440

(30.3 to 99.3)

60 (4)

8

800 to 2800

(55.2 to 193.1)

675 to 2675

(46.5 to 184.4)

125 (9)

Wetted Materials

Table 3

No

Description

1

Aluminum alloy port, teflon coated polyimide (Kapton)
diaphragm and nitrile O-ring

4

UNS S31600 CRES port, teflon coated polyimide diaphragm
and nitrile O-ring.

5

UNS S31600 CRES port and diaphragm, heliarc welded.

9

Monel port and inconel diaphragm, heliarc welded; not offered
in range “1”

100P Enclosure 7 Adjustable Pressure Switch Page 15

Explosion Proof/ Weather Proof Ratings:

Class I, Div 1, Groups C and D
Class II, Div 1, Groups E, F and G
Class III, Div 1

II 2 G D
Ex d II B T6 Gb
Ex tb IIIC T85 °C Db, IP65
Enclosure type 4X, 13 (NEMA)

Electrical Ratings

Form C (SPDT)

15 amp at 125, 250, or 480 VAC, 2 amp at 600VAC, 1/8 hp at
125 VAC, ¼ hp at 250 VAC, .5 amp resistive, .04 amp
inductive at 125 VDC.

Form CC (DPDT):

11 amp and ¼ hp at 125 or 250 VAC, 5 amp resistive , 3 amp
inductive at 28 VDC, .5 amp resistive at 125 VDC.

Form Z (Double Break):

15 amp at 125, 250, or 480 VAC, ¼ hp at 125 VAC, 1/2 hp at
250 VAC, 1 amp resistive, .5 amp inductive at 125 VDC.

Form C or CC with M option

1 amp at 125 VAC

100P Enclosure 7 Adjustable Pressure Switch Page 16

OPTIONS

The available options are listed below. You can combine these
options, but every option ordered should be indicated in the part
number of the unit.

Table 4

Option

Description

B

Viton O-Ring – Refer to Wetted Materials

C

EPR O-Ring – Refer to Wetted Materials

E

7/16 – 20 SAE Port (Wetted Material 1 Only)

F

Fire Fuse – For Fire Tested Equipment (Wetted
Materials 4 and 5 only)

M

Gold Electrical Contacts For Extremely Low Current
Applications

S

Corrosion-Resistant Steel Diaphragm
(Wetted Material 4 Only)

W

Corrosion-Resistant Steel Screws – Exterior
(Standard on Wetted Materials 4, 5 and 9)

100P Enclosure 7 Adjustable Pressure Switch Page 17

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.