Omega Products PR-21SL-3-100-A-0250-M12-1 User Manual
Spring Loaded RTD Sensors
with M12 Connectors
For Use in Thermowells
C
PR-21SL-M12 Series
U 4-Wire, Class-A Pt100
RTDs Can be Used with
2, 3 or 4-Wire Systems
U Temperature Range:
-50 to 260°C (-58 to 500ºF)
[85°C (185ºF) Max at
Connector]
U M12 A-Coded Male
Connectors for Easy
Installation, 2 Wiring
Arrangements Available
U Fits All Standard 0.260"
Bore Thermowells
(Sold Separately)
U Probe Length Equals
Thermowell Stem Length
U Adjustable Self-Griping
Spring Allows for Use in
Shorter Length Thermowells
U M12 Extension Cables,
4 to 20 mA Transmitters and
Other Accessories Available
U Large Selection of
Industrial Thermowells
PIN #3 PIN #2
KEYWAY
PIN #4
PIN #1
PIN #2
PIN #3
PIN #4
WIRING OPTION #2 WIRING OPTION #1
PIN #1
PIN #1
PIN #4
PIN #2
PIN #3
PR-21SL-3-100-A-0600-M12-1
shown smaller than actual size.
Thermowell sold
separately. Visit
omega.com/
260_commodity
for details.
Optional Equipment
U SPRTX-SS In-Line
Transmitter
U TX94A-SS
Transmitter
U UWRTD-
2-S Wireless
Transmitter
U M12C Extension
Cables
M12C-PVC-4-S-F-5,
mating cable sold
separately. Visit
omega.com/m12c
for optional
extension cables.
38.1
(1.50)
Ø17
(0.66) REF
M12
Connector
7
/
8
(1.75)
½ NPT
HEX
44.4
Thermowell Stem Length
Adjustable
Self-Gripping
Spring*
*Spring material: 0.89 (0.035) diameter music wire (ASTM A228)
Thermowell
Sold Separately
Ø = diameter
Dimensions:
mm (inch)
To Order Visit pr-21sl-m12 for Pricing and Details
Resistance Accuracy Class Thermowell
Model No. at 0°C Per IEC 60751* Stem Length
PR-21SL-3-100-A-0250-M12-1 100.00 ±0.06Ω Class A 2½"
PR-21SL-3-100-A-0400-M12-1 100.00 ±0.06Ω Class A 4"
PR-21SL-3-100-A-0600-M12-1 100.00 ±0.06Ω Class A 6"
PR-21SL-3-100-A-0900-M12-1 100.00 ±0.06Ω Class A 9"
PR-21SL-3-100-A-1200-M12-1 100.00 ±0.06Ω Class A 12"
PR-21SL-3-100-A-1500-M12-1 100.00 ±0.06Ω Class A 15"
PR-21SL-3-100-A-1800-M12-1 100.00 ±0.06Ω Class A 18"
PR-21SL-3-100-A-2400-M12-1 100.00 ±0.06Ω Class A 24"
Class A Accuracy = ±(0.15 + 0.002*t)°C where “t” = temperature in °C regardless of sign.
*
For the alternate wiring arrangement, change “-1” to “-2” in the model number, no additional cost.
For a probe length not listed up to 24", change the stem length in the model number to the required stem length (Example: 1250 = 12½") and
use the price of the next longer sensor.
Ordering Example: PR-21SL-3-100-A-0400-M12-1, 4-wire 100 Ω Class A RTD sensor with M12 connector wired in the “-1” configuration
(see figure) that spring loads into a thermowell with a 0.260" diameter bore and a stem length of 4" or less.
C-1
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