ACI-Automation Components A/20K-S-4X Data Sheet

Automation Components, Inc.

PB

GD

4X

TEMPERATURE | THERMISTORS | STRAP ON

STRAP ON

Non-Intrusive Pipe Mount, Thermistor

The ACI Thermistor Strap-On Series features a 1.5” square copper plate with the sensor
encapsulated to the back side of the plate to improve the thermal conductivity between the
pipe and the sensor when an Immersion style sensor can’t be inserted into the pipe. Each
sensor has two, 14 inch 22 AWG Etched Teon colored lead wires to dierentiate the dierent
sensor types. The sensors in this series are manufactured using ACI’s proven double
encapsulation process to eliminate the eects of moisture upon the sensors as well as to
improve the thermal response times using our high quality, thermally conductive epoxy. The
Strap-On Series sensors can be used to monitor pipe sizes from 1 ¼” to 10” in diameter. For best

accuracy and increased thermal conduction between the pipe and the sensor, ACI
recommends to clean the pipe before applying thermal grease as well as to insulate the sensor from the eects of the ambient air. Please contact
ACI for more information regarding this sensor or to discuss your application in further detail. Optional weather proof enclosure and NIST
certicates are available upon request.

Applications: Cold Water Systems, Hot Water Systems, Retrot, Hydronic Heating Systems, Chillers

PRODUCT SPECIFICATIONS

Sensor Type | Sensor Curve:

Number Sensing Points:

Number Wires:

Sensor Series Output @ 25ºC (77ºF) |

(Lead Wire Colors):

Accuracy 0-70ºC (32-158ºF):

Stability:

Response Time (63% Step Change):

Power Dissipation Constant:

Enclosure Specications, Operating

Temperature Range, Ratings:

Storage Temperature Range:

Operating Humidity Range:

Pipe Mount Sensor Enclosure Material:

Fits Pipe Sizes:

Foam Material | Flammability Rating:

Lead Length | Conductor Size:

Lead Wire Insulation | Wire Rating:

Conductor Material:

Product Dimensions:

Product Weight:

Agency Approvals:

Thermistor | Non-Linear, NTC (Negative Temperature Coecient)

One

Two (Non-Polarity Sensitive)

A/1.8K: 1.8KΩ nominal | (Red/Yellow) A/CSI: 10KΩ nominal | (Green/Yellow)

A/3K: 3KΩ nominal | (White/Brown) A/10KS: 10KΩ nominal | (White/Blue)

A/AN (Type III): 10KΩ nominal | (White/White) A/10K-E1: 10KΩ nominal | (Gray/Orange)

A/AN-BC: 5.238KΩ nominal | (White/Yellow) A/20K: 20KΩ nominal | (Brown/Blue)

A/CP (Type II): 10KΩ nominal | (White/Green) A/100KS: 100KΩ nominal | (Black/Yellow)

+/-0.2ºC (+/-0.36ºF) except A/10K-E1 Series: +/-0.3ºC (+/-0.54ºF);

A/1.8K Series: +/- 0.5ºC @ 25ºC (77ºF) and (+/-1.0ºC) (+/-1.8ºF)

Sensor Dependent; Contact ACI for more information on specic sensor

30 Seconds nominal

3 mW/ºC except A/1.8K Series: 1 mW/ºC | A/10K-E1 Series: 2 mW/ºC

A/XX-S-GD: Galvanized Steel, -40 to 93ºC (-40 to 200ºF), NEMA 1 (IP 10)

A/XX-S-PB: ABS Plastic, -30 to 85ºC (-22 to 185ºF), UL94-HB, Plenum Rated

A/XX-S-4X: Polystyrene Plastic, -40 to 70ºC (-40 to 158ºF), UL94-V2, NEMA 4X (IP 66)

-40 to 80ºC (-40 to 176ºF)

10 to 95% RH, non-condensing

14” (35.6cm) | 22 AWG (0.65mm)

Copper

Neoprene/EPDM/SBR Polymer | UL94-HF1; MIL-R-6130C; FMVSS-302

A/XX-S-XX: 1 1/4” (32mm) to 4” (100mm) | A/XX-S10-XX: 2” (50mm) to 10” (250mm)

Etched Teon (PTFE) Colored Leads | MIL-W-16878/4 (Type E)

Silver Plated Copper

See Drawing on Back of Data Sheet

A/XX-S-GD: 0.80 lbs. (0.37kg) | A/XX-S-PB: 0.40 lbs. (0.18kg) | A/XX-S-4X: 0.55 lbs. (0.25kg)

CE, RoHS2, WEEE

Call: 1-888-967-5224 | Web: www.workaci.com

TEMPERATURE | ##

TEMPERATURE | THERMISTORS | STRAP ON

DIMENSIONAL DRAWING

Plastic Box Enclosure [PB]

Automation Components, Inc.

4.79” (121.55mm)

3.60”

(91.44mm)

4.79” (121.55mm)

2.25”

(57.15mm)

Galvanized Enclosure [GD]

2.33”

(59.06mm)

4.20” (106.68mm)

NEMA 4X Enclosure [4X]

3.70”

(93.98mm)

(64.77mm)

2.55”

Front View Right View Top View

CUSTOM ORDERING

A. Sensor Series

B. Model Series

C. Conguration

D. Enclosure

E. NIST

Select One (1)

Note*: Not available in “NEMA 4X” style enclosure option

No Selection Required

Select One (1)

Select One (1)

Select One (1)

A/

1.8K | 3K | AN | AN-BC | CP | CSI | 10KS | 10K-E1 | 20K | 100KS

S = Strap-On (1.25” to 4” Pipe Size) | S10* = Strap-On (2” to 10” pipe size)

GD = Galvanized | PB = Plastic | 4X = NEMA 4X Weather Proof

---- = No NIST Certicate | NIST = NIST Certicate (Must Specify 1, 3 or 5 Points)

2.73”

1.65” (41.86mm)

2.23” (56.71mm)

(69.33mm)

Model # Example:

Foam Pad Will
Compress Upon
Installation

Foam Pad Will
Compress Upon
Installation

Foam Pad Will
Compress Upon
Installation

A/A.1.8KB.SC.PB

Adjustable 2”- 5”

Adjustable 2”- 5”

Adjustable 2”- 5”

NIST

E.

MODEL #

D.

A/

ACCESSORIES ORDERING

Model #

HARDWARE, 2-5” HOSE CLAMP

HARDWARE, 2-12.25” HOSE CLAMP

NSG HEAT TRANSFER PASTE 2OZ

NSG HEAT TRANSFER PASTE 16OZ

TEMPERATURE | ##

Item #

100244

142966

102595

140574

Description

Hardware, 2-5” Hose Clamp, Quick Release Worm Gear, 201/301 Stainless Steel

Hardware, 2-12” Hose Clamp, Quick Release Worm Gear, 201/301 Stainless Steel

Thermal Grease, 2 oz. Tube, Silicone Free, -40 to 320ºF (-40 to 160ºC)

Thermal Grease, 16 oz. Jar, Silicone Free, -40 to 390ºF (-40 to 198ºC)

Call: 1-888-967-5224 | Web: www.workaci.com

HARDWARE, 2-5” HOSE CLAMP

Revision C0000002 | Rev 1.0

-OR-

100244