Fluke 1529 Specifications

Automated 7380

temperature calibration

systems

Technical Data

Why spend more time than necessary to calibrate
PRTs, thermistors, and thermocouples? With a
7380 automated temperature calibration system
from Fluke Calibration, you can perform consistent,
repeatable calibrations quickly and efficiently.
When the calibration is complete, you simply print
out the report. It’s that easy.

Each system comes complete with everything
you need to automate the calibration of PRTs,
thermistors and thermocouples, including a bath for
calibrations down to –80°C, a reference thermom­eter probe (PRT), and a readout that can measure
up to four temperature sensors. An automation
package is included to minimize labor costs and
maximize return on investment.

An automated calibration system keeps elec­tronic records of the calibration. The test procedure
is executed the same way every time. Your auditor
will love this. Managers have to find ways to pro­duce better results with fewer resources and with
an automated calibration system that is just what
they will get. Less time is spent with each calibra­tion and so productivity goes through the roof with

Better value than when purchased separately

•

Application note simplfies uncertainty analysis

•

Significant reduction in labor costs

•

Manual calibration systems
can take four hours or more.
Automated calibration
systems can reduce the time
to as little as 15 minutes.

consistent results. In addition to freeing up time,
it becomes possible to put the most experienced
technicians on more challenging tasks because
less training is required to run an automated pro­cedure. Finally, our application note, Calculating

uncertainties in an automated temperature calibra­tion system, simplifies the process of producing an

uncertainty analysis.

7380 compact calibration bath

This bath features stability and uniformity better
than ±0.008ºC and metrology-level performance
in a lab-friendly size.

Fluke Calibration has been making the world’s
best-performing temperature baths for more than
two decades. With our proven heating/cooling
designs and hybrid analog-digital controller, Fluke
Calibration baths apply the most effective technolo­gies that are commercially available.

For ultra-cold temperatures, the 7380 reaches
–80°C quickly and maintains a two-sigma stabil­ity of ±0.006°C when it gets there. The 7380 is a
true metrology bath, not a chiller or circulator. With
uniformity and stability performance so high, com­parison calibration of temperature devices can be
performed with impressively low uncertainty.

5615 reference PRT

This secondary reference platinum resistance
thermometer (PRT) offers affordable wide-range
accuracy, excellent stability and a reference-grade
platinum sensing element. It features an Inconel™
600 sheath that is 305 mm (12 in) long and 6.35
mm (0.250 in) in diameter. It has short-term accu­racy of ±0.013°C at 0.01°C.

The element is constructed of reference-grade
platinum wire (99.999 % pure) for excellent sta­bility. The wire is wound in a coil and placed in
a mandrel, where it is uniformly supported in a
manner that virtually eliminates hysteresis. These
Inconel™-sheathed probes have a fully supported
sensing element, making them more durable than
SPRTs.

1529 Chub-E4 thermometer readout

This readout features four channels, three major
sensor types, lab-quality accuracy, battery power,
the ability to read many different sensor types,
and much, much more.

The Chub-E4 has four inputs for reading four
different sensors simultaneously. All four channels
in the 7380-USR are configured for reading resis­tance based temperature sensors such as PRTs and
thermistors. The 7380-USRT comes with two of the
channels dedicated to thermocouple measurement.
With the 1529, reading thermocouples, PRTs, and
thermistors accurately from the same device is
no problem.

The memory and communications capabilities
of the Chub-E4 make it perfect for lab calibration
work, but it’s also great for on-site measurements,
and remote data logging (store up to 8,000 mea­surements including date and time stamps).

2 Fluke Calibration, Automated 7380 temperature calibration systems

Fourteen different logging intervals may be

selected, from 0.1 second to 60 minutes.

MET/TEMP II temperature calibration

automation software

This easy-to-use software cuts calibration time by

more than half that of non-automated systems.

Calibrating sensors manually is expensive
because of labor costs. It takes roughly four hours
to calibrate a sensor at three points, then another
hour to document the temperature data and create
the certificate.

With MET/TEMP II, simply place your test sen­sors in the bath, connect them to the readout, and
enter your setup data into a PC. Later, print the
reports, sign them, and ship the sensors back to
your customer. What once took four hours of direct
labor can be reduced to as little as fifteen minutes.
Calibration reports are created automatically from
your setup data and test results.

Fast turnaround times improve customer satis­faction, and reduced labor costs improve the
bottom line.

Recommended bath uids for the 7380
automated calibration system

Model # Fluid Usable range

5019 Halocarbon 0.8 Cold Bath Fluid –100°C to 70°C n/a
5022 Dynalene HF/LO –65°C to 58°C 60°C
5023 HFE Cold Bath Fluid –75°C to 100°C n/a
n/a methanol –96°C to 10°C 12°C
n/a ethanol –100°C to 14°C 16°C

†

Bath fluid must be ordered separately.

†

Flash point

(closed cup)

Most people use the 5019 fluid with the 7380 bath. The wide
usable range of the fluid allows you to take better advantage of the
bath’s full temperature range. If you’re willing to trade a few degrees
on the low end for more range on the high end, then another good
choice is the 5023 fluid. If you’re only interested in reaching low
temperatures, then methanol and ethanol are easy to find locally.
Methanol, however, is toxic and can be inhaled or absorbed through
the skin, so special care should be taken when handling it, especially
when filling the bath.

Information about choosing a bath fluid is available on our website.

Customizing the access cover

Probes can be held in place in the bath by using probe clamps or
drilling holes in the access cover. Other fixtures to hold the probes
can be designed. The object is to keep the reference probe and
the probe(s) to be calibrated closely grouped in the working area
of the bath. Bath stability is maximized when the bath working
area is kept covered. This is because evaporation and condensa­tion are slowed by keeping the bath covered. An example of an
access cover with holes drilled in it is shown in the picture below.

3

Summary specications

Range –80°C to 100°C (actual results are limited

Estimated system
calibration
uncertainties for
PRTs

†

(k=2)
Bath access opening 86mm x 114 mm (3.25in x 4.56 in)
Bath depth 178 mm (7 in)
Cooling time 130 minutes from 25°C to –80°C
Volume 4 liters (1 gal)
Software

requirements

Hardware
requirements

†

See Calculating uncertainties in an automated temperature
calibration system application note for a step-by-step tutorial on
evaluating your uncertainties with this system.

by range of bath fluid)
–80°C, ±0.021°C

–38°C, ±0.022°C
0°C, ±0.026°C
100°C, ±0.032°C

Windows® 2000
Windows® XP

CD-ROM drive for installation
RS-232 serial (COM) port
Minimum of 12 MB disk space

Congurations

Model Voltage 1529 1529-R 7380 5615 9938

7380-USR 120V/60Hz x x x x
7380-USRT 120V/60Hz x x x x
7380-UKR 220V/50Hz x x x x
7380-UKRT 220V/50Hz x x x x
7380-CHR 220V/50Hz x x x Chinese

7380-CHRT 220V/50Hz x x x Chinese

7380-OTR 220V/50Hz x x x x
7380-OTRT 220V/50Hz x x x x

Ordering information

†

Models See configurations table above
7380-USR Bundle, Automated 7380 System, US
7380-USRT Bundle, Automated 7380 System, US
7380-UKR Bundle, Automated 7380 System, UK
7380-UKRT Bundle, Automated 7380 System, UK
7380-CHR Bundle, Automated 7380 System, China
7380-CHRT Bundle, Automated 7380 System, China
7380-OTR Bundle, Automated 7380 System, other non US
7380-OTRT Bundle, Automated 7380 System, other non US

†

5019

†

5022

†

5023

†

Bath fluid must be ordered separately

Fluid, Halocarbon, 4 liters
Fluid, Dynalene HF/LO, 4 liters
Fluid, HFE Cold Bath, 4 liters

Reports

Reports

Fluke Calibration.

Precision, performance, confidence.

Fluke Calibration
PO Box 9090, Everett, WA 98206 U.S.A.

Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands

For more information call:
In the U.S.A. [phone] or
Fax [phone]
In Europe/M-East/Africa [phone] or
Fax [phone]
In Canada (800)-36-FLUKE or
Fax [phone]
From other countries [phone] or
Fax [phone]
Web access: http://www.flukecal.com

©2007, 2012 Fluke Calibration.
Specifications subject to change without notice.
Printed in U.S.A. 9/2011 3079592B_EN-N
Pub_ID: 11274-eng Rev 02

Modification of this document is not permitted
without written permission from Fluke Calibration.

™