Fluke SureGrip 80PK-25 Manual de usuario

80PK-25

SureGripTM Piercing

Temperature Probe

Instruction Sheet

XWWarning

To avoid electrical shock, do not use this

probe when voltages exceeding 24 V ac rms

or 60 V dc are present. The probe tip is

electronically connected to the output

terminals.

Introduction

The 80PK-25 SureGripTM Piercing Temperature Probe is

designed for use in liquids, gels, soft, and semi-hard

materials. The probe is made of 316 stainless steel, which

is suitable for food service use. The thermocouple junction

of the probe is protected from tip to handle by the stainless

steel sheath. The 40-inch (1-meter) cable is terminated

with a Type K miniature thermocouple connector with

0.792-mm (.312-inch) pin spacing. The 80PK-25 can be

used with any temperature-measuring instrument that is

designed to accept Type K thermocouples and has a

miniature connector input.

Specifications

Type

K, Standard grade Ni-Cr vs Ni-Al (Chromel vs Alumel)

Measurement Range of Stainless Steel Probe

-40 °C to 350 °C (-40 °F to 662 °F)

Accuracy

(With respect to ANSI MC96.1 Standard Limits of Error)

Note

All error calculations should be done in °C, then

scaled to °F.

Range Accuracy

(% of reading)

-40 °C to 0 °C

(-40 °F to 32 °F)

±2.2 °C

0 °C to 260 °C

(32 °F to 500 °F)

±1.1 °C

November 2004

All product names are trademarks of their respective companies

Output

@ 25 °C (77 °F) =1.00 mV (reference junction at 0 °C)

Seebeck Coefficient

@ 25 °C (77 °F) = 40.50 µV / °C

Measurement Time

(Time Constant): 3.0 seconds in 100 °C still water at sea

level pressure (5 time constants = 1 complete step

change, i.e., 5 seconds)

Maximum Voltage

24 V ac rms or 60 V dc

Maximum Temperature of Tip 816 °C (1500 °F)

Sheath

Material: 316 Stainless Steel Dimensions

Diameter: 3.4036 mm (.134 in)

Length: 10.16 cm (4 in)

Tip: 25 °conical

Grounding

Junction welded to sheath

Cable

Length: 40 inches (1 meter)

Insulation

Material: PVC

Maximum Temperature: 105 °C (221 °F)

Jacket Color: Gray

Food Service Limitation: The cable should not come in

contact with food.

Conductors

Type: K

Size: AWG #24 stranded (7 strands of #32)

Handle

Material: Hytrel (food service grade)

Maximum Temperature of Food in Contact with

Handle: 65 °C (150 °F)

Connector

Type: Mini-thermocouple connector with .792 mm (.0312

in) pin spacing

Material: Yellow Hytrel (food service grade)

Maximum Temperature: 125 °C (257 °F)

Overall Probe Length

22.23 cm (8.75 in) from tip to end of cable strain relief

Protection

Class 3. Relates solely to insulation and grounding

properties defined in IEC 348.

Measurement Considerations

Instrument Compatibility

The 80PK-25 is compatible with any temperature-

measuring instrument that accepts Type K thermocouples,

has a miniature thermocouple connector, and has cold

reference junction compensation. Accuracy of the

temperature-measuring instrument must be considered

along with the 80PK-525 accuracy specification to

determine the overall accuracy of the combination.

Temperature Limitations

The tip of the 80PK-25 has a continuous temperature

rating of 816 °C (1500 °F). However the opposite end of

the sheath nearest the handle should not be subjected to

temperatures greater than 125 °C. This is the maximum

temperature limitation of the Hytrel handle. See Food

Service Limitations.

Exposure Limitations

The sheath material of the 80PK-25 is stainless steel. It

should not be exposed to halides or sulfides.

Food Service Limitations

The 316 stainless steel probe is suitable for contact with

hot or cold foods within the specified temperature range of

the probe. However the handle is made of Hytrel 5556

which is suitable for repeat food contact only under the

following conditions: food temperature under 65 °C

(150 °F), food alcohol content under 8 %. Food may be

wet, dry, or fatty. Also, the cable should not come in

contact with food.

Operation

Use the 80PK-25 as follows:

Connect the 80PK-25 to a compatible Type K measuring

instrument using the miniature (0.312 inch spacing)

thermocouple connector.

Turn on the measuring instrument, and select the

appropriate range and scale.

Check the read out on the measuring instrument. With no

heat or cold source applied to the bead, the measuring

instrument should display the ambient (room) temperature.

If the instrument does not read out properly, refer to

“Troubleshooting”.

Measuring Technique

The 80PK-25 Piercing Probe should be inserted at least

31.75 mm (1.25 in) into the substance to be measured to

minimize the shunting effect of the sheath.

Troubleshooting

With no heat or cold applied to the probe, the measuring

instrument should display the ambient temperature. If the

measuring instrument does not read out properly, try the

following:

Verify that the measuring instrument is designed to be

used with Type K thermocouples. The measuring

instrument should have a yellow input connector and / or

be marked with a “K”.

Check for an open circuit indicator on the measuring-

instrument. Some temperature-measuring instruments

have a built-in circuit to indicate if the connected probe is

open. (All Fluke temperature-measuring instruments have

this feature.) Refer to the owner’s manual accompanying

the measuring instrument to see if this feature is available.

Short the two input pins of the measuring instrument with

a piece of wire. If the instrument is functioning, it should

indicate the ambient temperature.

If you suspect a broken connection, use an ordinary

ohmmeter to read the continuity of the probe from pin to

pin. The ohmmeter should read 20 eor less if there is

continuity.

Scale Conversions

Use the following equation to convert °C to °F:

(°C x 1.8) + 32 = °F

Use the following equation to convert °F to °C:

(°F –32) x 0.5556 = °C

4" (101.6 mm)

Diameter: .134" (3.4036 mm)

bae01f.eps

Figure 1. 80PK-25

Contacting Fluke

For application or operation assistance, or information on

Fluke products, call:

USA: 1-888-44-FLUKE (1-888-443-5853)

Canada: 1-800-36-FLUKE (1-800-363-5853)

Europe: +31 402-675-200

Japan: +81-3-3434-0181

Singapore: +65-738-5655

Anywhere in the world: +1-425-446-5500

For USA Service: 1-888-99-FLUKE

(1-888-993-5853)

Or, visit Fluke's Web site at www.fluke.com.

To register your product, visit register.fluke.com

ONE YEAR LIMITED WARRANTY

This Fluke product will be free from defects in material and

workmanship for one year from the date of purchase. This

warranty does not cover fuses, disposable batteries, or

damage from accident, neglect, misuse, alteration,

contamination, or abnormal conditions of operation or

handling. Resellers are not authorized to extend any other

warranty on Fluke’s behalf. To obtain service during the

warranty period, contact your nearest Fluke authorized

service center to obtain return authorization information,

then send the product to that Service Center with a

description of the problem.

THIS WARRANTY IS YOUR ONLY REMEDY. NO

OTHER WARRANTIES, SUCH AS FITNESS FOR A

PARTICULAR PURPOSE, ARE EXPRESSED OR

IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL,

INDIRECT, INCIDENTAL OR CONSEQUENTIAL

DAMAGES OR LOSSES, ARISING FROM ANY CAUSE

OR THEORY. Since some states or countries do not allow

the exclusion or limitation of an implied warranty or of

incidental or consequential damages, this limitation of

liability may not apply to you.

Fluke Corporation

P.O. Box 9090

Everett, WA 98206-9090

U.S.A.

Fluke Europe B.V.

P.O. Box 1186

5602 BD Eindhoven

The Netherlands

11/99

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