Moore Industries the worm Installation Manual

Easy,

Slide-In

Installation

February 2014

Flexible Sensors for Thermowell

T emperature Assemblies

In both new and retrot applications, the WORM

®

Flexible Sensors for Thermowell Temperature
Assemblies replace restrictive straight sensor probes
with a universal sensor strategy that will save you

time and money.

Unique Flexible Design Installs in Minutes

With straight sensors, you have to remove the

connection head, and sometimes thermowell

assembly components, to get the sensor into the
thermowell. The WORM bends right through the
top or face of the enclosure. It slides through the
enclosure’s conduit port, and into (or out of) the

thermowell without having to remove the enclosure
or any assembly components (Figure 1).

Figure 1. The WORM lets you replace a sensor without removing
the enclosure or disassembling the thermowell.

Features

• Universal, trims to
thermowell length.

There’s no need to stock an

expensive array of different
sensor lengths. With a

quick measurement and a

simple trim-to-length, the
WORM handles nearly

every thermowell assembly.

• Ideal for hockey-puck, connection head and
dual-sided enclosures. The innovative WORM

provides cost and time advantages for all types of
temperature transmitter enclosures.

• Popular RTD and thermocouples. Standard

sensor types include 100 and 1000 ohm platinum,
nickel and copper RTDs; plus J-, K-, T-, E- type
thermocouples.

• Faster response time. The WORM delivers step

response times 13% faster than standard sensors.

© 2014 Moore Industries-International, Inc.
231-710-01D

Page 1

Sensor Probe & Wiring

2-Inch & 1-Inch Spacers–keeps the WORM straight

inside the lag

Spring–for pushing the sensor probe

against the base of the thermowell

Stopper–for use in
Generic Installations,
holds the WORM assembly
inside of the thermowell

Cap–for use in Head-Mount and Field Enclosure
Installations, holds the WORM assembly inside of the
thermowell assembly

Clip–in Field Enclosure
Installations, holds the
cap in place

Sensor

Probe

1-Inch

Spacer

Spring

Cap

& Clip

Field Enclosure

(Including Moore Industries’ DH & BH)

2-Inch

Spacer

1-Inch

Spacer

Determine the

length of the

thermowell

assembly and

cut the Spring
to be between

1 and 1½

inches longer.

Flexible Sensors for Thermowell
T emperature Assemblies

Installs in Minutes

Each of the three installation options uses different
parts from the installation kit; expect to have parts left
over after installation. Read through all steps for the
enclosure type prior to beginning installation.

Figure 2. The WORM Kit Components

Field Enclosure Installation

(Including Moore Industries’ DH & BH enclosures)

Installation Components Required: Sensor Probe,

Spring, Cap, Clip, and Spacer(s).

1. Determine the length of the thermowell assembly (see

the illustration to the right). Cut the WORM Spring to be

between 1 and 1½ inches longer than the length of the

assembly (this is necessary so that the Spring's
compression securely holds the sensor probe to the
bottom of the thermowell).

2. Ensuring that the uncut portion of the Spring faces down

towards the Sensor Probe, slide the Spring over the sensor

wires and onto the end of the Sensor Probe.

3. Snap the Clip onto the Cap. Then slide the Cap/Clip

combination over the sensor wires onto the top of the

Spring.

4. Remove the instrument from the enclosure (if

necessary). Insert the WORM sensor into the thermowell.
Slide the appropriate length(s) and number of Spacers
to keep the WORM Spring straight inside the thermowell

assembly lag (Spacers may not be required).

5. Using pliers, grasp the Cap/Clip combination by the
niche at the top of the Cap, and insert it into the

enclosure’s sensor entry port to compress the WORM
Spring into the thermowell. Reinstall the instrument into
the enclosure. Connect the sensor wires.

Page 2

Flexible Sensors for Thermowell

Sensor

Probe

Spring

1-Inch

Spacer

2-Inch

Spacer

1-Inch

Spacer

Determine the

length of the

thermowell

assembly and

cut the Spring
to be between

1 and 1½

inches longer.

Sensor

Probe

Spring

Stopper

Generic Enclosure

1-Inch

Spacer

2-Inch

Spacer

1-Inch

Spacer

Determine the

length of the

thermowell

assembly and

cut the Spring
to be between

1 and 1½

inches longer.

T emperature Assemblies

Head-Mount Enclosure Installation

(Including Moore Industries’ LH enclosure)

Installation Components Required: Sensor Probe, Spring,
Cap and Spacer(s).

1. Determine the length of the thermowell assembly (see

the illustration to the left). Cut the WORM Spring to be

instrument into the enclosure, compressing the WORM
Spring into the thermowell with the bottom of the
instrument. Connect the sensor wires.

between 1 and 1½
inches
longer than the
length of the

assembly (this is

necessary so that the

Spring’s compression

securely holds the
Sensor Probe to
the bottom of the

thermowell).

2. Ensuring that

the uncut portion
of the Spring faces

down towards the
Sensor Probe, slide

the Spring over the

sensor wires and
onto the end of the
Sensor Probe.

3. Slide the Cap over

the sensor wires onto

the top of the Spring.

4. Remove the

instrument from the
enclosure. Insert

the WORM sensor

into the thermowell.

Slide the appropriate
length(s) and number
of Spacers to keep
the WORM Spring

straight inside the
thermowell assembly

lag (Spacers may not

be required).

5. Reinstall the

Generic Enclosure Installation

Installation Components Required: Sensor Probe,

Spring, Stopper and Spacer(s).

1. Determine the length of
the thermowell assembly

(see the illustration to the
right). Cut the WORM
Spring to be between 1

and 1½ inches longer
than the length of the

assembly (this is

necessary so that the

Spring’s compression

securely holds the
Sensor Probe to
the bottom of the

thermowell).

2. Ensuring that

the uncut portion
of the Spring faces

down towards the
Sensor Probe, slide

the Spring over the

sensor wires and
onto the end of the
Sensor Probe.

3. Remove the

instrument from

the enclosure (if
necessary). Insert
the WORM sensor

into the thermowell.

Slide the appropriate
length(s) and number
of Spacers to keep
the WORM Spring

straight inside the
thermowell assembly

lag (Spacers may not
be required).

4. Slide the Stopper

over the sensor wires
onto the top of the
Spring. Push the
Stopper rmly into the thermowell entry port to compress

the WORM Spring into the thermowell.

5. Reinstall the instrument into the enclosure. Connect the

sensor wires.

Page 3

Page 3

Flexible Sensors for Thermowell
T emperature Assemblies

Select one from each category to order a Sensor Kit:

The WORM Sensor Kit

SEN3 Sensor Kit includes Three Complete "the WORM" Sensor Assemblies plus Spare Assembly Parts
SEN1 Sensor Kit includes One Complete "the WORM" Sensor Assembly plus Spare Assembly Parts
SEN Sensor Only; with Wire Jacket and Spring

Jacket and Spring Length (See Page 2 to Determine Total Sensor Insertion Length)

CL24 24-Inch Wire Jacket and Spring Length plus 6-8" lead wires (specify for total sensor insertion lengths of 22-inches and under)

CL36 36-Inch Wire Jacket and Spring Length plus 6-8" lead wires (specify for total sensor insertion lengths of 22-inches to 34-inches)
CL? Special Wire Jacket and Spring Length plus 6-8" lead wires - Replace "?" with length up to 120" (Specify in 0.25-inch increments)

Sensor Sheath Diameter

D25 Appropriate for 0.25-inch and 6mm diameter applications

D18 0.18-inch diameter applications for single elements (WS); for (WH), consult the factory

Sensor Sheath Material

S316 Stainless Steel 316; specify for measurements up to 760°C (1400°F)
INC Inconel (WHTCKG or WHTCKU sensor types only) up to 1,093°C (2,000°F) only

Sensor Type (see Sensor Specications on next page; consult factory for special WORM sensors)

RTD SENSORS:

WSPT14 Standard Platinum RTD; 4-Wire; 100 ohm; alpha = 0.00385

WS2PT14 Standard Platinum RTD; 4-Wire; 100 ohm (Dual Sensor); alpha = 0.00385

WSPT104 Standard Platinum RTD; 4-Wire; 1000 ohm; alpha = 0.00385
WHPT14 High Temperature Platinum RTD; 4-Wire; 100 ohm; alpha = 0.00385
WH2PT13 High Temperature Platinum RTD; 3-Wire; 100 ohm (Dual Sensor); alpha = 0.00385
WHPT104 High Temperature Platinum RTD; 4-Wire; 1000 ohm; alpha = 0.00385
WSN4 Nickel RTD; 4-Wire; 120 ohm
WSCU4 Copper RTD; 4-Wire; 10 ohm

Flexible Sensors for Thermowell

T emperature Assemblies

THERMOCOUPLE SENSORS:
WSTC?G Standard, Replace ? with J, K, T or E Thermocouple, Grounded
WS2TC?G Standard, Replace ? with J, K, T or E Thermocouple, Grounded (Dual Sensor)
WSTC?U Standard, Replace ? with J, K, T or E Thermocouple, Ungrounded
WS2TC?U Standard, Replace ? with J, K, T or E Thermocouple, Ungrounded (Dual Sensor)
WHTC?G High Temperature, Replace ? with J, K, T or E Thermocouple, Grounded
WH2TC?G High Temperature, Replace ? with J, K, T or E Thermocouple, Grounded (Dual Sensor)
WHTC?U High Temperature, Replace ? with J, K, T or E Thermocouple, Ungrounded
WH2TC?U High Temperature, Replace ? with J, K, T or E Thermocouple, Ungrounded (Dual Sensor)

Assembly Options (not required)

-WW Wire Wound Option for Temperatures below -10°F or above +850°F to +1000°F
(For RTDs only)

-.04 1/3 DIN 0.04% High-Accuracy RTD Sensor
(Available on any WSPT104/WHPT104 RTD sensor types only)

-.06 Class "A" High-Accuracy RTD Sensor
(Available on any WS, WH, PT14 AND PT104 RTD sensor types only)

-10G 10G Low-intensity Vibration Sensor (See Sensor Specications)

-30G 30G High-intensity Vibration Sensor (See Sensor Specications)

The WORM Sensor Kit

[SEN]

SEN3 CL36

Model Number Example

D25 S316 WSPT14 -.06 [SEN]

Page 4

Page 4

for wire-wound option

1.25”

6-8”

United States • [e-mail]

Tel: [phone] • FAX: [phone]

Australia • [e-mail]

Tel: [phone] • FAX: [phone]

Belgium • [e-mail]

Tel: [phone] • FAX: [phone]
The Netherlands • [e-mail]

Tel: [phone] • FAX: [phone]

China • [e-mail]

Tel: [phone] • FAX: [phone]

United Kingdom • [e-mail]

Tel: [phone] • FAX: [phone]

Lead Wires

Flexible Sensors for Thermowell

T emperature Assemblies

CL

*Capsule length varies slightly

Capsule

Sensor Specications

Lead Wires:

Standard (WS) Sensors: Teon insulated, hermetically sealed for
measurements up to 204°C (400°F)

High Temperature (WH) Sensors: Braided berglass for

measurements ranging from 204°C (400°F) up to 760°C (1,400°F).

Inconel (INC) sheathed sensors: special berglass insulation

withstands temperatures up to 1,093°C (2,000°F)
Wire Size: Wire gauges range from 20 to 28 depending on the

element type.
RTD Stability: 0.2°C after 10,000 hrs. at maximum

temperature (1 year, 51 days, 16 hrs. continuous)

Response Time (typical to reach a 63.2% temperature change):

RTD: <5 seconds; Grounded Thermocouples 2.0 sec.;
ungrounded Thermocouples 4.5 sec.

Vibration Options:

10G: provides protection for sensors that are exposed to higher
than normal vibration levels.

30G: sensor is encapsulated in a waterproof epoxy to endure
extreme vibration levels and full water immersion.

Spring: 302 stainless steel. Withstands continuous temperatures
up to 1093°C (2000°F).

Temperature Ranges for WORM Elements

Type

RTDs

Wire Wound

(-WW) RTD

Thermocouple

* See options -.04 and -.06 for higher accuracy RTD WORM sensors

Platinum

Nickel

Copper

Platinum

Nickel

Copper

J

K

T

E

Temperature Range

0 - 1400°F (-18 - 760°C)

0 - 400°F (-18 - 204°C)
0 - 400°F (-18 - 204°C)

-300 - 1000°F (-184 - 538°C)

-100 - 400°F (-73 - 204°C)

-50 - 400°F (-45 - 204°C)

-200 - 1400°F (-129 - 760°C)

-200 - 2000°F (-129 - 1093°C)

-200 - 750°F (-129 - 399°C)

-200 - 1400°F (-129 - 760°C)

T/C IDENTIFICATION

Type

J
K
E
T

Wire Color

+

White

Yellow

Purple

Blue

–

Red

Red

Red

Red

Accessories

Part Number Description

231-849-00

802-179-24

Accuracy*

±0.12% at 0°C

±0.12% at 0°C

2.2°C or .75% of reading,
whichever is greater

2.2°C or .75% of reading,

whichever is greater

1.0°C or .75% of reading,

whichever is greater

1.7°C or .5% of reading,

whichever is greater

Spare Parts Kit includes one each:

Spare Spring; Clip; Cap; 1" Spacer; 2"
Spacer

Combination Pliers/Wire Stripper facilitates
installation of the WORM components and

sensor connection

Page 5

Specications and information subject to change without notice.

Page 5