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DWYER INSTRUMENTS, INC. | www.dwyer-inst.com306

Series

I2-2 General Purpose ImmersionTemperature SensorLocking Screw Cover, Multiple Conduit Holes

SPECIFICATIONSAccuracy: 

Platinum RTD: ±0.6% @ 32°F (0°C);Nickel RTD: ±0.5°F @ 32°F (0°C);Balco RTD: ±0.1% @ 32°F (0°C);Thermistors: ±0.36°F from 32 to 158°F (0 to 70°C).

Operating Temperature: -32 to 240°F(-35.5 to 115.5°C).Probe Diameter: 1/4˝ (6.3 mm).Cable Length: 8˝.Probe Material: 304 SS.Mounting: 1/2˝ threaded connection tofit Series IW2 thermowell.

The Series I2-2 General Purpose Immersion Temperature Sensor is ideal formonitoring hot and chilled water lines throughout a building or mechanical room. Theplastic housing is in the shape of a standard junction box with multiple knockouts for easyconduit access. The locking cover prevents unauthorized occupants from tampering withthe temperature sensor. The Sensor I2-2 can be ordered with a choice of 11 output optionsthat allow it to communicate to any standard building control system.

Note: A Series IW2 Thermowell must be used on pressurized air and water lines toprevent leakage around the probe.

ModelI2-21062I2-22062I2-23062I2-24062I2-25062I2-26062 I2-27062 I2-28062 I2-29062I2-2A062 I2-2B062

ModelI2-21042I2-22042I2-23042I2-24042I2-25042I2-26042I2-27042I2-28042I2-29042I2-2A042I2-2B042

Sensor TypePt 100 Ω RTDPT 1000 Ω RTDNi 1000 Ω RTDBalco 1000 Ω RTD10K Ω Type 2 Thermistor3K Ω Thermistor5K Ω Thermistor100K Ω Thermistor20K Ω Thermistor2252 Ω Thermistor10K Ω Type 3 Thermistor

Sensor TypePt 100 Ω RTDPT 1000 Ω RTDNi 1000 Ω RTDBalco 1000 Ω RTD10K Ω Type 2 Thermistor3K Ω Thermistor5K Ω Thermistor100K Ω Thermistor20K Ω Thermistor2252 Ω Thermistor10K Ω Type 3 Thermistor

Thermowells

ModelIW2-262IW2-242

Material304 SS304 SS

2-1/4[57.15]

4-1/16[103.21]

2X Ø0.743˝ [18.87 MM]3/8˝ NPT CONDUIT KNOCKOUTS

3/8˝ NPT

L[L = 7.000˝ FOR 6˝ THERMOWELL L = 5.000˝ FOR 4˝ THERMOWELL]

3X Ø0.896˝ [22.76 MM]1/2˝ NPT CONDUIT KNOCKOUTS

Series

I2-4 Weather-Proof ImmersionTemperature SensorTwist Off Cover, Multiple Conduit Holes

SPECIFICATIONSAccuracy: 

Platinum RTD: ±0.6% @ 32°F (0°C);Nickel RTD: ±0.5°F @ 32°F (0°C);Balco RTD: ±0.1% @ 32°F (0°C);Thermistors: ±0.36°F from 32 to 158°F (0 to 70°C).

Operating Temperature: -32 to 240°F(-35.5 to 115.5°C).Probe Diameter: 1/4˝ (6.3 mm).Cable Length: 8˝.Probe Material: 304 SS.Mounting: 1/2˝ threaded connection tofit Series IW2 thermowell.

The Series I2-4 Weather-Proof Immersion Temperature Sensor is ideal formonitoring hot and chilled water lines feeding Air Handlers and Cooling Towers. Theplastic housing has a 1/4 turn twist off cover to reduce installation time. The multipleknockouts allow for easy conduit access to any side of the housing. The Series I2-4 can beordered with a choice of 11 output options that allow it to communicate to any standardbuilding control system.

Note: A Series IW2 Thermowell must be used on pressurized air and water lines toprevent leakage around the probe.

ModelI2-41062I2-42062I2-43062I2-44062I2-45062I2-46062 I2-47062 I2-48062 I2-49062I2-4A062 I2-4B062

ModelI2-41042I2-42042I2-43042I2-44042I2-45042I2-46042I2-47042I2-48042I2-49042I2-4A042I2-4B042

Sensor TypePt 100 Ω RTDPT 1000 Ω RTDNi 1000 Ω RTDBalco 1000 Ω RTD10K Ω Type II Thermistor3K Ω Thermistor5K Ω Thermistor100K Ω Thermistor20K Ω Thermistor2252 Ω Thermistor10K Ω Type III Thermistor

Sensor TypePt 100 Ω RTDPT 1000 Ω RTDNi 1000 Ω RTDBalco 1000 Ω RTD10K Ω Type II Thermistor3K Ω Thermistor5K Ω Thermistor100K Ω Thermistor20K Ω Thermistor2252 Ω Thermistor10K Ω Type III Thermistor

Thermowells

ModelIW2-262IW2-242

Material304 SS304 SS

3-31/32[101.00]

2-7/32[56.16]

4X ø0.896˝ [22.76 MM]1/2˝ NPT CONDUIT KNOCKOUTS

3-3/32 [78.74]

1/4 [6.35]L

L = 7.000˝ FOR 6˝ THERMOWELLL= 5.000˝ FOR 4˝ THERMOWELL

FOR 1/2˝ NPT THERMOWELL CONNECTION

Insertion Length6˝6˝6˝6˝6˝ 6˝6˝6˝6˝6˝6˝

Insertion Length4˝4˝4˝4˝4˝4˝4˝4˝4˝4˝4˝

Insertion Length 6˝4˝

Insertion Length6˝6˝6˝6˝6˝ 6˝6˝6˝6˝6˝6˝

Insertion Length4˝4˝4˝4˝4˝4˝4˝4˝4˝4˝4˝

Insertion Length 6˝4˝

ACCESSORYIW-C, Thermowell Compound