Fluke 1551A Ex and 1552 Ex Intrinsically Safe "Stik" Thermometers

Finally, a digital substitute for your mercury-in-glass thermometers! Accurate and repeatable to ±0.05°C over its full range, the 1551A/1552A "Stik" Thermometer is the new "gold standard" of industrial temperature calibration. Whether working outdoors in environments where potentially explosive gases may be present or on the floor of a processing plant, the intrinsically-safe, battery operated, portable reference thermometer is designed to go where you work.

Finally, a digital substitute for your mercury-in-glass thermometers! Accurate and repeatable to ±0.05°C over its full range, the 1551A/1552A "Stik" Thermometer is the new "gold standard" of industrial temperature calibration. Whether working outdoors in environments where potentially explosive gases may be present or on the floor of a processing plant, the intrinsically-safe, battery operated, portable reference thermometer is designed to go where you work.

More Information
Features
  • Accuracy of ±0.05°C (±0.09°F) over full range.
  • Intrinsically safe (ATEX and IECEx compliant).
  • Two models to choose from (-50°C to 160°C or -80°C to 300°C).
  • User-configurable temperature Trend/Stability indicator.
  • Display temperature in °C or °F.
  • Optional data logging to internal memory.
  • 300-hour battery life.
  • Percent battery-life and low-battery indicator.
  • NVLAP-accredited, NIST-traceable calibration included.
  • 1-year warranty.
Model Fluke Models 1551A Ex and 1552 Ex Intrinsically Safe "Stik" Thermometers
Specifications

Technical Specifications

Measurement

1551A Ex 1552A Ex

Temperature Range

-50°C to 160°C (-58°F to 320°F) -80°C to 300°C (-112°F to 572°F)

Temperature Resolution

Selectable: 0.1°C, 0.01°C, 0.001°C default 0.01°C

Sample Rate

Selectable: 0.5 sec, 1 sec, 2 sec, default 1 second

Accuracy (1-year)

±0.05°C (±0.09°F)

Display Units

°C, °F

Sensor Type

100 Ohm thin-film RTD 100 Ohm wire-wound PRT

Sensor Length

≤ 10mm ≤ 30mm

Sensor Position (from sheath tip)

3mm (0.1 inch) 3mm (0.1 inch)

Minimum Immersion Depth

7cm (2.8 ins) 12cm (4.8 ins)

Probe Sheath Material

Stainless Steel

Probe Temperature Coefficient

0.00385 Ω/Ω/°C nominal

Probe Response Time

14 seconds (probe diameter 4.8mm (3/16 in)
21 seconds (probe diameter 6.35mm (1/4 in)

Probe Hysteresis

±0.01°C

Calibration (included)

NVLAP-accredited, NIST - traceable

Characterization

CVD ITS-90
 

Data Logging

Logging Options

Up to 10,000 time-stamped readings stored in internal memory

Logging Intervals

2 sec, 5 sec, 10 sec, 30 sec, or 60 seconds;

 

2 min, 5 min, 10 min, 30 min, or 60 minutes

Damping

Moving average of the most recent 2 to 10 readings

 

(ON/OFF, 2, 5, 10)

Communications

RS-232 stereo jack (access calibration parameters only)

 

Environmental

Operating Temperature

-10°C to 50°C (14°F to 122°F)

Storage Temperature

-20°C to 60°C (-4°F to 140°F)

Humidity

0% to 95% RH, non-condensing

 

Safety

EMC Compliance

EN 61326:2006 Annex C; CISPR II Edition 5.0-2009; Class B

Enclosure Rating

IP50

 

General Specifications

Power Supply (DC only)

3 x type 'AAA' 1.5-volt Alkaline batteries

Battery Life

300 hours (without LCD backlight)

Dimensions

114mm (H) x 57mm (W) x 25mm (D)

Weight

196g

 

Ordering Information

Model Name

Description

Fluke 1551A-9

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
4.8mm x 229mm (3/16" x 9"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A -12

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-20

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
6.35mm x 508mm (1/4" x 20"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-9-DL

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C, with Datalogging options
4.8mm x 229mm (3/16" x 9"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-12-DL

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C, with Datalogging options
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1552A-12-DL

1552A Ex Thermometer, Fixed PRT, -80°C to 300°C, with Datalogging options
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

 

Note: Model number appended with -9, -12, -20 indicates probe sheath length in mm and in inches. All probe diameters are 6.35mm (1/4 in) with the exception of the 1551A-9, which is 4.8mm diameter (3/16

 

Optional Accessories

Model Name

Description

Fluke 1551-CASE

Protective Carrying Case for both models

Fluke 1551-CBL

Cable, RS-232 155X

Technical Specifications

Measurement

1551A Ex 1552A Ex

Temperature Range

-50°C to 160°C (-58°F to 320°F) -80°C to 300°C (-112°F to 572°F)

Temperature Resolution

Selectable: 0.1°C, 0.01°C, 0.001°C default 0.01°C

Sample Rate

Selectable: 0.5 sec, 1 sec, 2 sec, default 1 second

Accuracy (1-year)

±0.05°C (±0.09°F)

Display Units

°C, °F

Sensor Type

100 Ohm thin-film RTD 100 Ohm wire-wound PRT

Sensor Length

≤ 10mm ≤ 30mm

Sensor Position (from sheath tip)

3mm (0.1 inch) 3mm (0.1 inch)

Minimum Immersion Depth

7cm (2.8 ins) 12cm (4.8 ins)

Probe Sheath Material

Stainless Steel

Probe Temperature Coefficient

0.00385 Ω/Ω/°C nominal

Probe Response Time

14 seconds (probe diameter 4.8mm (3/16 in)
21 seconds (probe diameter 6.35mm (1/4 in)

Probe Hysteresis

±0.01°C

Calibration (included)

NVLAP-accredited, NIST - traceable

Characterization

CVD ITS-90
 

Data Logging

Logging Options

Up to 10,000 time-stamped readings stored in internal memory

Logging Intervals

2 sec, 5 sec, 10 sec, 30 sec, or 60 seconds;

 

2 min, 5 min, 10 min, 30 min, or 60 minutes

Damping

Moving average of the most recent 2 to 10 readings

 

(ON/OFF, 2, 5, 10)

Communications

RS-232 stereo jack (access calibration parameters only)

 

Environmental

Operating Temperature

-10°C to 50°C (14°F to 122°F)

Storage Temperature

-20°C to 60°C (-4°F to 140°F)

Humidity

0% to 95% RH, non-condensing

 

Safety

EMC Compliance

EN 61326:2006 Annex C; CISPR II Edition 5.0-2009; Class B

Enclosure Rating

IP50

 

General Specifications

Power Supply (DC only)

3 x type 'AAA' 1.5-volt Alkaline batteries

Battery Life

300 hours (without LCD backlight)

Dimensions

114mm (H) x 57mm (W) x 25mm (D)

Weight

196g

 

Ordering Information

Model Name

Description

Fluke 1551A-9

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
4.8mm x 229mm (3/16" x 9"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A -12

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-20

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C
6.35mm x 508mm (1/4" x 20"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-9-DL

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C, with Datalogging options
4.8mm x 229mm (3/16" x 9"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1551A-12-DL

1551A Ex Thermometer, Fixed RTD, -50°C to 160°C, with Datalogging options
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

Fluke 1552A-12-DL

1552A Ex Thermometer, Fixed PRT, -80°C to 300°C, with Datalogging options
6.35mm x 305mm (1/4" x 12"); Includes NVLAP-accredited report of calibration, User's Guide 
on CD-ROM, 3 type 'AAA' batteries.

 

Note: Model number appended with -9, -12, -20 indicates probe sheath length in mm and in inches. All probe diameters are 6.35mm (1/4 in) with the exception of the 1551A-9, which is 4.8mm diameter (3/16

 

Optional Accessories

Model Name

Description

Fluke 1551-CASE

Protective Carrying Case for both models

Fluke 1551-CBL

Cable, RS-232 155X

  • Accuracy of ±0.05°C (±0.09°F) over full range.
  • Intrinsically safe (ATEX and IECEx compliant).
  • Two models to choose from (-50°C to 160°C or -80°C to 300°C).
  • User-configurable temperature Trend/Stability indicator.
  • Display temperature in °C or °F.
  • Optional data logging to internal memory.
  • 300-hour battery life.
  • Percent battery-life and low-battery indicator.
  • NVLAP-accredited, NIST-traceable calibration included.
  • 1-year warranty.