Instrukcja obsługi Fluke SureGrip 80PK-22

Fluke Niesklasyfikowane SureGrip 80PK-22

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®
80PK-22
SureGripTM Immersion
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-22 SureGripTM Immersion Temperature Probe is
designed for use in liquids or gels. The probe can also be used
as a general purpose temperature probe. The thermocouple
junction is protected from tip to handle by an Inconel sheath.
The 40-inch (1 meter) cable is terminated with a Type K
miniature thermocouple connector with 0.792-mm (0.312-in)
pin spacing. The 80PK-22 can be used with any temperature-
measuring instrument that is designed to accept Type K
thermocouples and has a miniature connector input.
Note
The 80PK-22 is not recommended for use in food or
beverage preparation. Use 80PK-25 for food
preparation.
Specifications
Type
K Standard grade Ni-Cr vs. Ni-Al (Chromel vs. Alumel)
Measurement Range
-40 °C to 1090 °C (-40 °F to 1994 °F)
Accuracy
(With respect to ANSI MC96.1-1982-Standard Limits of Error)
Note
All error calculations should be done in °C, then
scaled to °F.
Range Accuracy
(% of reading)
-40 °C to 293 °C
(-40 °F to 559.4 °F)
±2.2 °C
293 °C to 1090 °C
(559.4 °F to 1994 °F)
±0.75 %
November 2004 Rev.2, 9/09
© 2004-2009 Fluke Corporation. All rights reserved
All product names are trademarks of their respective companies.
Output
@ 25 °C (77 °F) =1.00 mV (reference junction @ 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. Complete step change equals 5 time constants (3.75
seconds).
Maximum Voltage
24 V ac rms or 60 V dc
Maximum Temperature of Tip
1090 ° °C (1994 F)
Sheath
Material: Alloy 600
Dimensions:
Diameter: 3.175 mm (1/8 in)
Length: 212.725 mm (8.375 in)
Grounding
Junction welded to sheath.
Cable
Length: 40 inches (1 meter)
Insulation
Material: PVC
Maximum Temperature: 105 °C (220 °F)
Jacket Color: Gray
Conductors
Type: K
Size: AWG #24 stranded (7 strands of #32)
Handle
Material: Hytrel
Maximum Temperature: 125 °C (257 °F)
Connector
Type: Mini-thermocouple connector with .792 mm (0.312 in)
pin spacing
Material: Yellow Hytrel
Maximum Temperature: 125 °C (257 °F)
Overall Length
31.75 cm (12.5 in) from probe 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-22 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-22 accuracy specification to determine the overall
accuracy of the combination.
Temperature Limitations
The probe tip of the 80PK-22 has a continuous temperature
rating of 1090 °C (1994 °F). However the opposite end of the
sheath nearest the handle should not be subjected to
temperatures greater than 125 °C (257 °F). This is the
maximum temperature limitation of the handle.
Media Limitations
The sheath material of the 80PK-22 is Inconel, an alloy of
chromium and nickel. It has excellent resistance to oxidation
and corrosion at high temperatures, but it should not be used
in the presence of sulfur above 537 °C (1000 °F).
Operation
Use the 80PK-22 as follows:
1. Connect the 80PK-22 to a compatible Type K temperature
measuring instrument using the miniature (0.312-inch pin
spacing) thermocouple connector.
2. Turn on the measuring instrument, and select the
appropriate range and scale.
3. Check the readout on the measuring instrument. With no
heat or cold source applied to the tip of the probe, the
measuring instrument should display the ambient (room)
temperature. If the instrument does not read out properly,
refer to “Troubleshooting”.
Minimizing Thermal Shunting
The 80PK-22 Immersion Probe should be inserted at least 6.35
cm (2.5 in) into the environment 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:
1. Verify that the temperature-measuring instrument is
designed to be used with Type K thermocouples. The
temperature-measuring instrument should have a yellow
input connector and / or be marked with a “K” either on the
case or on the display.
2. 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 owners 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.

Specyfikacje produktu

Marka: Fluke
Kategoria: Niesklasyfikowane
Model: SureGrip 80PK-22

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