Fluke 80PK-8 Handleiding

Fluke Niet gecategoriseerd 80PK-8

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Pagina 1/3
February 1995, Rev. 2, 5/09
©1995 - 2009 Fluke Corporation. All rights reserved. Specifications subject to change without notice.
All product names are trademarks of their respective companies.
1
80PK-8
Type K Thermocouple Pipe Clamp Temperature Probe
Instruction Sheet
Introduction
XWWarning
To avoid electric shock, do not
use this probe when voltages
exceeding 24 V ac or 60 V dc are
present. The probe is electrically
connected to the output terminals.
The 80PK-8 Type K Thermocouple Pipe Clamp
Temperature Probe (Figure 1) is designed to reliably
measure the temperature of pipes ÂĽ-inch (6 mm) to 1
3/8-inch (35 mm) in diameter, at temperatures
between -29 °C and 149 °C (-20 °F and 300 °F),
while retaining a long service life.
Plunger
Sensor
V Notch
80PK8.eps
Figure 1. 80PK-8 Pipe Clamp Temperature Probe
Specifications
Measurement Range: -29 °C to 149 °C (-20 °F to
300 °F)
Accuracy: ±1.9 °C (±.3.4 °F). Surface measurement
accuracy of ± °1.9 C includes ± °1.1 C variation in alloy
plus probe contact and shunting uncertainty of
± °0.8 C.
Repeatability: ± 0.56 °C (±1 °F)
Output: @ 25 ° °C (77 F) = 1.00 mV (Reference
junction at 0 °C)
Seebeck Coefficient:
@ 25 °C (77 ° μ °F) = 40.50 V / C
Measurement Time (Time Constant):
0.5 seconds (5 time constants = 1 complete step
change, i.e. 2.5 seconds)
Maximum Voltage Rating: 24 V ac rms, or 60 V
dc
Sensor Material: Chromel-Alumel
Cable Length: 40 inches (1 meter)
Cable Insulation: Material: PVC
Maximum Temperature: 105 ° °C (220 F)
Minimum Temperature: -29 ° °C (20 F)
Conductor: K Type AWG #24 stranded
Probe Body: PBT
Maximum Temperature: 149 ° °C (300 F)
Minimum Temperature: -29 ° °C (20 F)
Connector: Mini-thermocouple connector with
7.925 mm (0.312 in) pin spacing
Media Limitations: Must be compatible with
chromel, alumel, and PBT
Type K Thermocouple Pipe Clamp Temperature Probe
Using the 80PK-8 to Measure Pipe Temperature
2
Using the 80PK-8 to Measure
Pipe Temperature
1. Using the miniature thermocouple connector,
connect the 80PK-8 to a compatible Type K
temperature measuring device.
2. Turn on the measuring instrument and select the
appropriate range and scale.
If you are using a temperature conversion module
(the 80TK, for example), insert the module into
the VΩ and COM inputs of the meter and select
the mV dc function.
3. Using your thumb or the palm of your hand, press
down on the plunger to open the jaws of the probe
wide enough to easily encompass the pipe.
Center the pipe on the “V” notch (see Figure 1)
on the jaw of the probe and relax pressure on the
plunger.
4. Read the temperature on the measuring
instrument. When no heat or cold is applied to the
sensor the measuring instrument should display
the ambient temperature. If the instrument does
not readout properly, refer to “Troubleshooting”.
Measurement Considerations
The 80PK-8 is designed to be compatible with any
temperature-measuring instrument that accepts
miniature Type K thermocouples with cold reference
junction compensation. The accuracy of the
temperature-measurement is a factor of the combined
accuracy of the temperature measuring instrument and
the 80PK-8.
A lowering of the temperature at the sensor contact
point is less likely (and response time is faster) on
clean, polished, thermally conductive surfaces, then
on surfaces with low thermal conductivity, such as
plastic or rough, greasy surfaces. To obtain the best
thermal contact and performance, the pipe must be
centered in the “V” notch of the probe jaw.
To get the most accurate temperature measurement,
adjust the connection between the sensor and the pipe
until you get the maximum or minimum temperature
reading.
W Caution
To prevent damage to the probe,
do not rotate the clamp when
measuring the temperature of a
rough surface.
Troubleshooting
When no heat or cold is applied to the probe, the
measuring instrument should display the ambient
temperature. If the measuring instrument does not do
so, try the following:
1. Verify that the temperature measuring instrument
is designed to be used with Type K
thermocouples. The instrument should have a
yellow input connector and/or be marked with a
“K”.
2. Check for an open circuit indicator on the
measuring instrument. Some thermometers have a
built in circuit to indicate if the connected probe
is open. (All Fluke instruments have this feature.)
Refer to instruments owners’ manual to see if this
feature is available.
If you suspect a broken connection, use an
ohmmeter to check probe continuity from pin to
pin. If the ohmmeter reads ≤ Ω10 , the probe is
good.
3. Short the two input connectors to the instrument
with a piece of wire. If the instrument is
functioning properly it should display the ambient
temperature.
Cleaning
W Caution
To prevent damage to the probe,
do not use solvents that may
deteriorate the handle and plunger
of the probe.
Using warm-soapy water, brush the sensor lightly
with a toothbrush. Excessive or abrasive brushing can
damage the sensor and void the warranty. If necessary
dip the brush (but not the sensor) in rubbing alcohol.
3
LIMITED WARRANTY & LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The
warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days.
This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses,
disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered, neglected, contaminated, or
damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in
accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke
does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no
authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased
through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice
Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another
country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a
defective product which is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, 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 difficulty, postage and insurance prepaid (FOB Destination).
Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation
prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident, or
abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating,
or normal wear and tear of mechanical components, Fluke will provide an estimate of repair costs and obtain authorization before
commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be
billed for the repair and return transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or
consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this
Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect
the validity or enforceability of any other provision.
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

Product specificaties

Merk: Fluke
Categorie: Niet gecategoriseerd
Model: 80PK-8

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