
Automation Components, Inc.
TEMPERATURE | NICKEL RTDS | IMMERSION
IMMERSION
Stainless Steel Immersion, Nickel RTD
The ACI Nickel Immersion Series features a ¼” diameter stainless steel probe with two, 14 inch
22 AWG Etched Teon colored lead wires to dierentiate the many dierent sensor types. The
sensors in this series are manufactured using ACI’s proven double encapsulation process to
eliminate the eects of moisture upon the sensors and to increase the thermal response times
using our high quality, thermally conductive epoxy. The immersion sensors come standard
with a welded thermowell “-I” version but can also be ordered without the thermowell “-INW”
version. The “-INW” Version includes a standard ½” NPS (National Pipe Straight) process thread
to be used with an optional machined thermowell or in an existing thermowell application.
This series can be ordered with optional NEMA rated weather proof enclosures and NIST
Certicates as referenced on the back of the product data sheet. Please contact ACI for more information regarding this sensor or if you would like
to discuss your application in further detail.
Applications: Chilled Water Systems, Hot Water Systems, Boilers, Pumps, Compressor, Chillers
PRODUCT SPECIFICATIONS
Sensor Type | Sensor Curve:
Number Sensing Points:
Number Wires:
Sensor Output @ 21.1°C (70°F) | Lead Wire Colors:
Sensor Accuracy:
Din Standard | Temperature Coecient (0-100°C):
Sensor Stability:
Response Time (63% Step Change):
Self-Heating | Operating Current (Maximum)
Sensor Operating Temperature Range
Enclosure Specications (Temperature,
Flammability, NEMA/IP Ratings):
Storage Temperature Range:
Operating Humidity Range:
Probe Diameter | Thermowell Bore Diameter:
Probe Material | Thermowell Material:
Thermowell Instrument Thread | Process Thread:
Fitting Material | Flammability Rating:
Fitting Thread Size:
Foam Pad Material | Flammability Rating:
Lead Length | Conductor Size:
Lead Wire Insulation | Wire Rating:
Conductor Material:
Product Dimensions | Product Weight:
Agency Approvals:
Nickel RTD | PTC (Positive Temperature Coecient)
One
Two (Non-Polarity Sensitive)
1000 Ohms nominal | (Red/Red)
-40ºC (-40ºF): +/- 1.52ºC (+/- 2.73ºF) | 0ºC (-40ºF): +/- 0.4ºC (+/- 0.72ºF)
21.1ºC (70ºF): +/- 0.17ºC (+/- 0.34ºF) | 54.4ºC (130ºF): +/- 0.56ºC (+/- 1.00ºF)
121ºC (250ºF): +/- 1.25ºC (+/- 2.25ºF)
Din 43760 | 6370 ppm/°C
+/- 0.05% after 1000 Hours @ 150°C (302°F)
8 Seconds nominal
0.3°C/mW (Still Air) | 5 mA
-40 to 121°C (-40 to 250°F)
“-GD” Enclosure: Galvanized Steel, -40 to 121°C (-40 to 250°F), NEMA 1 (IP10)
“-PB” Enclosure: ABS Plastic, -30 to 90°C (-22 to 194°F), UL94-HB
“-BB” Enclosure: Aluminum, -40 to 121°C (-40 to 250°F), Plenum Rated, NEMA 3R (IP 14)
“-4X” Enclosure: Polystyrene Plastic, -40 to 70°C (-40 to 158°F), UL94-V2, NEMA 4X (IP 66)
-40 to 85°C (-40 to 185°F)
10 to 95% RH, non-condensing
0.250” (6.35mm) | 0.260”
304 Stainless Steel | 304 Series Stainless Steel
½” NPS (National Pipe Straight) Thread | ½” NPT (National Pipe Tapered) Male Thread
Polyamide 66 (High Performance Nylon 66) | UL94-HB
½” NPS (National Pipe Straight) Male Thread
Neoprene/EPDM/SBR Polymer | UL94-HBF; FMVSS-302; MIL-R-6130C
14” (35.6 cm) | 22 AWG (0.65mm)
Etched Teon (PTFE) Colored Leads | Mil Spec 16878/4 Type E)
Silver Plated Copper
See table on back of Product Data sheet
CE, RoHS2, WEEE
Call: 1-888-967-5224 | Web: www.workaci.com
TEMPERATURE | ##

TEMPERATURE | NICKEL RTDS | IMMERSION
DIMENSIONAL DRAWING, WEIGHTS
Plastic Box Enclosure [PB]
3.60”
(91.44mm)
4.79” (121.55mm)
2.25”
(57.15mm)
2.23” (56.63mm)
Available with
2.5”, 4”, and 6”
Lengths
Automation Components, Inc.
xx = Sensor Type | yy = Insertion Length
Plastic Box Enclosure [PB] Weights
ACI Model #
A/xx-INW-yy-PB
A/xx-I-yy-PB
A/xx-IM-yy-PB
2.5”
(Insertion Length)
0.24 lbs. (0.109 kg)
0.56 lbs. (0.254 kg)
0.58 lbs. (0.263 kg)
4”
(Insertion Length)
0.28 lbs. (0.127 kg)
0.60 lbs. (0.272 kg)
0.74 lbs. (0.336 kg)
6”
(Insertion Length)
0.32 lbs. (0.145 kg)
0.64 lbs. (0.290 kg)
0.92 lbs. (0.417 kg)
Galvanized Enclosure [GD]
Bell Box Enclosure [BB]
NEMA 4X Enclosure [4X]
CUSTOM ORDERING
A. Sensor Series
B. Model Series
C. Conguration
E. Enclosure
Select One (1)
F. NIST
No Selection Required
No Selection Required
Select One (1)
Select One (1)
Select One (1)
2.29”
(58.04mm)
4.20” (106.68mm)
4.70” (119.50mm)
2.23”
(56.71mm)
1.65” (42mm)
3.70” (93.98mm)
2.55”(64.77mm)
2.34” (59.38mm)
Available with
2.5”, 4”, and 6”
Lengths
Available with
2.5”, 4”, and 6”
Lengths
Available with
2.5”, 4”, and 6”
Lengths
Galvanized Enclosure [GD] Weights
ACI Model #
A/xx-INW-yy-GD
A/xx-I-yy-GD
A/xx-IM-yy-GD
2.5”
(Insertion Length)
0.66 lbs. (0.299 kg)
0.88 lbs. (0.399 kg)
1.00 lbs. (0.454 kg)
4”
(Insertion Length)
0.70 lbs. (0.318 kg)
1.00 lbs. (0.454 kg)
1.16 lbs. (0.526 kg)
Bell Box Enclosure [BB] Weights
ACI Model #
A/xx-INW-yy-BB
A/xx-I-yy-BB
A/xx-IM-yy-BB
2.5”
(Insertion Length)
0.68 lbs. (0.308 kg)
1.02 lbs. (0.463 kg)
1.02 lbs. (0.463 kg)
4”
(Insertion Length)
0.72 lbs. (0.326 kg)
1.04 lbs. (0.427 kg)
1.20 lbs. (0.544 kg)
NEMA 4X Enclosure [4X] Weights
ACI Model #
A/xx-INW-yy-4X
A/xx-I-yy-4X
A/xx-IM-yy-4X
2.5”
(Insertion Length)
0.32 lbs. (0.145 kg)
0.64 lbs. (0.290 kg)
0.66 lbs. (0.299 kg)
4”
(Insertion Length)
0.36 lbs. (0.163 kg)
0.68 lbs. (0.308 kg)
0.82 lbs. (0.372 kg)
Standard Views Product Weights
Model # Example:
A/A.1K-NIB.IC.4”
D.
A/
1K-NI
I = Immersion with Welded Thermowell | INW = Immersion without Welded Thermowell
IM = Immersion with Machined Thermowell
2.5” = 2.5” Insertion | 4” = 4” Insertion | 6” = 6” Insertion D. Insertion Length
GD = Galvanized | PB = Plastic | BB = Aluminum | 4X = NEMA 4X
---- = No NIST Certicate | NIST = NIST Certicate (Must Specify 1, 3 or 5 Points)
GDE.NIST
6”
(Insertion Length)
0.74 lbs. (0.336 kg)
1.04 lbs. (0.472 kg)
1.32 lbs. (0.599 kg)
6”
(Insertion Length)
0.76 lbs. (0.345 kg)
1.08 lbs. (0.490 kg)
1.36 lbs. (0.617 kg)
6”
(Insertion Length)
0.40 lbs. (0.181 kg)
0.72 lbs. (0.327 kg)
1.00 lbs. (0.454 kg)
MODEL #
F.
A/
1K-NI
ACCESSORIES ORDERING
Model #
NSG HEAT TRANSFER PASTE 2OZ
NSG HEAT TRANSFER PASTE 16OZ
A/M2.5”
A/M4”
A/M6”
A/M2.5”-316SS
A/M4”-316SS
A/M6”-316SS
TEMPERATURE | ##
Item #
102595
140574
128338
128343
128344
128352
128353
128354
Description
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)
2.5” (63.5mm) Insertion, 304 Stainless, Machined, ½” NPT Thermowell
4” (101.6mm) Insertion, 304 Stainless, Machined, ½” NPT Thermowell
6” ( 152.4mm) Insertion, 304 Stainless, Machined, ½”NPT Thermowell
2.5” (63.5mm) Insertion, 316 Stainless, Machined, ½” NPT Thermowell
4” (101.6mm) Insertion, 316 Stainless, Machined, ½” NPT Thermowell
6” (152.4mm) Insertion, 316 Stainless, Machined, ½” NPT Thermowell
Call: 1-888-967-5224 | Web: www.workaci.com
Model # Example:
NSG HEAT TRANSFER PASTE 2OZ
Revision C0000002 | Rev 1.0
-OR-
102595