(item no. 3003322, 3003331, 3003346, 3003354, 3003368, 3003379, 3003387, 3003393, 3376989)
PRODUCT OVERVIEW
- Small diameter sheath, 3.2mm (0.125 in)
- Excellent stability
- Includes ITS-90 coefficients
- NVLAP-accredited calibrated from –200°C to 500°C, lab code 200706-0
For secondary level performance with full ITS-90 calibration, Fluke Calibration’s 5618B series PRTs are an excellent choice for critical temperature measurements. Featuring a 3.2 mm diameter (1/8 in) sheath, these industrial standards probes have reduced response time without compromising precision. This small diameter 5618A probe works well in many applications where immersion depth is limited. Larger diameter probes give more measurement error in short immersion depth applications because they conduct more heat between ambient and the sensor.
With each probe you will receive a full NVLAP-accredited calibration report. On the report you’ll get the test data and the ITS-90 calibration coefficients that you can easily input into your Fluke Calibration thermometer.
The 5618B is also a great probe to use for calibrating your Fluke Calibration 9132 or 9133 infrared calibrators. In fact, these IR black body heat sources were designed to be calibrated with this type of probe. Now you can calibrate these targets in your own lab!
For use from –200 °C to 500 °C (the six-inch model goes to 300 °C), you won’t find a better industrial standard in this configuration than our 5618B. We recommend using the 5618B PRTs with the 1523, 1524, 1502A, 1529, or 1560 thermometer readouts.
SPECIFICATIONS
Resistance | Nominal 100 Ω at 0 °C | ||||||||||||||||
Temperature Coefficient |
0.003923 Ω/Ω/ °C nominal |
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Temperature Range |
–200 °C to 500 °C (–200 °C to 300 °C for 5618B-6-X) |
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Drift Rate | ± 0.1 °C when used periodically to 500 °C | ||||||||||||||||
Sheath Material | 316 SST | ||||||||||||||||
Leads | 22 AWG PTFE, 6’ | ||||||||||||||||
Termination | Specify | ||||||||||||||||
Hysteresis |
Less than 0.01 °C at 0 °C when using –196 °C and 420 °C as the end points. |
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Time Constant |
Four seconds maximum for 63.2 % response to step change in water moving at 3 fps. |
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Thermal EMF | Less than 25 mV at 420 °C | ||||||||||||||||
Calibration |
Includes manufacturer’s NVLAP-accredited calibration w/ITS-90 coefficients, R vs. T values in 1 °C increments, lab code 200706-0 |
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Size |
5618B-12: 305 mm L x 3.2 mm dia. (12 x 1/8 in) 5618B-9: 229 mm L x 3.2 mm dia. (9 x 1/8 in) 5618B-6: 152 mm L x 3.2 mm dia. (6 x 1/8 in) |
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Calibrated Accuracy† (k=2) |
± 0.026 °C at –200 °C ± 0.066 °C at 0 °C ± 0.219 °C at 500 °C |
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†Includes calibration uncertainty and drift specification. |
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MODEL SPECIFICATIONS
5618B-6-B: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and bare wire connections.
5618B-6-D: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and 5-pin DIN connections.
5618B-6-G: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and gold pin connections.
5618B-6-I: The RTD has full ITS-90 calibration, a 6in length and INFO-CON connections for use with 1521 and 1522 models.
5618B-6-J: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and banana plug connections.
5618B-6-L: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and mini spade lug connections.
5618B-6-M: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and mini banana plug connections.
5618B-6-S: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and spade lug connections.
5618B-6-P: The RTD has full ITS-90 calibration, a 6″ (152 mm) length, and INFO-CON connections that work with the 1523 and 1524 models.