Instrument

Specifications: Fluke 1551a Stik Thermometer & Temperature Calibrator

Temperature range -50°C to 160°C

(-58°F to 320°F)

Accuracy (1 year) ±0.05°C (±0.09°F)

Temperature resolution Selectable: 0.1, 0.01, 0.001 (default 0.01)

Sample rate Selectable: 0.5 seconds, 1 second, 2 seconds (default 1 second)

Readout temperature coefficient Add ±10 ppm/°C of full scale temperature from ?10 °C to 18 °C and 28 °C to 50 °C

Probe temperature coefficient 0.00385 ?/?/°C nominal

Nominal probe resistance at 0 °C 100 ?

Probe hysteresis ±0.01°C

Response time 4.8 mm diameter probe (3/16 in): 14 seconds

6.35 mm diameter probe (1/4 in): 21 seconds

Operating temperature range readout -10°C to 50°C (14°F to 122°F)

Storage temperature -20°C to 60°C (-4°F to 140°F) 0% to 95% RH, non-condensing

Display units °C, °F

Sensor type 100 ? thin-film RTD

Sensor length ? 10 mm

Sensor position (from sheath tip) 3 mm (0.1 in)

Minimum immersion depth Wet medium (liquid bath, thermowell with thermal compound) 70 mm (2.8 in)

Dry medium (dry-well, thermowell without thermal compound) 120 mm (4.8 in)

Maximum immersion depth 50 mm (2 in) less than the total length. Make sure the last 50 mm of probe, nearest to the internal electronics of the device, are not put into the heat source.

Probe sheath material Stainless steel

Optional data logging1 Up to 10,000 time-stamped readings stored to internal memory

Logging intervals1 2 seconds, 5 seconds, 10 seconds, 30 seconds, or 60 seconds

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)

AC power None

DC power 3-AAA alkaline batteries

See Users Manual for approved batteries

Battery life Approximately 300 hours (12.5 days) of continuous operation with the backlight off.

Battery save (auto-off) range Selectable from 1 to 30 minutes or can be disabled

Safety IEC 60079-0, IEC 60079-11: Ex ib IIB T4 Gb; IEC 61010-1: Pollution Degree 2

Electromagnetic compatibility International:

IEC 61326-1: Portable Equipment;

IEC 61326-2-2; CISPR 11: Group 1, Class B

Group 1: Equipment has intentionally generated and/or uses conductively coupled radio frequency energy that is necessary for the internal function of the equipment itself.

Class B: Equipment is suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes.

USA (FCC):

47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.

Size (readout only) 125 mm x 62 mm x 35 mm (5 in x 2.5 in x 1.4 in)

Probe Size 1551A-9: 4.8 mm x 229 mm (3/16 in x 9 in)

1551A-12: 6.35 mm x 305 mm (1/4 in x 12 in)

1551A-20: 6.35 mm x 508 mm (1/4 in x 20 in)

Weight 196 g (6.9 oz)

Calibration (included) NVLAP-accredited, NIST-traceable

Characterization CVD

1. See ordering information for optional data logging configurations