Fluke 525B Specifications
525B Temperature/
Pressure Calibrator
Superior accuracy and functionality in
an economical benchtop package
Technical Data
The Fluke Calibration 525B
Temperature/ Pressure Calibrator
gives you a workhorse combination of high accuracy and broad
functionality for temperature and
pressure instrument calibration.
Compact and economical, the
525B has an interface for automated calibration, providing wide
workload coverage in instrument
shops and calibration labs, as
well as in ATE applications.
The 525B is the most
accurate Fluke Calibration
temperature calibrator, sourcing and measuring a complete
range of RTDs, thermocouples,
and the YSI 400 thermistor. It
also measures pressure covering common ranges from 1 inch
(6900 Pa) of water up to 10,000
PSI (69 MPa) using the Fluke 700
Series and 525A-P Series Pressure
Modules. Plus, the dc voltage and
current specifications of the 525B
enable you to calibrate other
process calibrators and a wide
variety of other instruments with
accuracy that rivals any calibrator
in its price range.
Key features:
Simulates and measures all
•
ANSI thermocouples, as well
as L and U types, and provides
cold junction compensation to
enable calibration of a wide
variety of thermocouple instrumentation.
Direct input for storage of
•
ITS-90 RTD constants.
RTD source uncertainties to
•
0.03 °C.
Direct measurement of all
•
Fluke 700 Series and 525A-P
Series Pressure Modules covering the most common pressure
ranges from 1˝ H
to 10,000 PSI.
Converts easily to any pres-
•
sure unit directly from the
front panel or through remote
communications.
Sources dc voltage and current
•
for multifunction workload
coverage, enabling calibration
of data loggers, strip chart
recorders, multimeters, and
other industrial instruments.
Supports automation using Fluke
•
Calibration’s MET/CAL
Calibration Management
Software or custom automated
programs with standard
RS-232-C and IEEE-488
interface.
Eight user programmable
•
setpoints allow quick recall
of values for Zero, Span and
linearity checks during
calibration.
Programmable setpoint dwell
•
times for automated calibration
and troubleshooting.
0
2
®
Plus
Selectable internal or external
•
CJC (Cold junction compensation) provides you with
the ability to make exacting
thermocouple measurements
using remote junctions.
Easy five-way binding posts for
•
low-loss convenient hookup.
Banana plug, screw terminal,
spade lug,
wraparound terminal, wire
pass-through terminal.
NIST-traceable calibration with
•
data is included.
At home in the cal lab
The 525B is a compact bench
instrument well suited for
traditional calibration laboratories with a large temperature
workload. Its 0 to 100 V output
and 0 to 100 mA current capabilities—plus its ability to serve
as a highly-accurate pressure
standard—make it a versatile
performer.
Filling the gap in the
instrument shop
In process plant environments,
instrument shop technicians
responsible for maintaining the
equipment pool need to calibrate
and repair a wide range of instruments, transmitters, field calibrators, P/l converters, transducers,
and temperature probes. With
its ability to simulate almost any
temperature sensor, precise pressure monitoring capability, and
dc voltage and current accuracy
rivaling any calibrator in its price
range, the 525B fills the gap
between lower accuracy handheld field calibrators and more
expensive high-end multifunction
calibrators.
A good fit for ATE test
applications
With precise calibration-grade
instrument control enabled
via an IEEE bus, the 525B is a
hardworking addition to automated test systems in quality and
manufacturing test applications
requiring capabilities such as
voltage and current sourcing,
sensor simulation, and temperature monitoring and validation.
Powerful functionality
that is easy to use
From start to finish, the 525B
is designed for ease of operation. The intuitive front panel
design features large keypads
and display that help reduce
training time and make the 525B
comfortable to use even for long
periods of time. Plus, you can
store frequently used constants
for a variety of probes in memory
for faster setup on the job.
MET/CAL® Plus automates
525B calibration and documentation management
You can use the 525B with
MET/CAL Plus calibration software
(V.6.11 or later) to meet the stringent documentation and reporting
requirements imposed by quality
standards such as ISO 9000.
MET/CAL Plus is a powerful
software environment for creating,
editing, testing, and documenting
calibration procedures, and for
performing automated calibrations.
At the core of MET/CAL Plus
is MET/TRACK
database management system
for test and measurement assets
created specifically to manage
equipment. It enables you to
track the information you need to
maintain quality calibrations. And
it supports the traceability and
record-keeping requirements of
modern quality and accreditation
standards.
MET/TRACK provides you with a
variety of standard report formats
prepared with Crystal Reports
Professional, which is included
with MET/CAL Plus. These report
formats cover a wide range of
information to help you meet
many of your documentation
®
software, a
™
requirements, including those
for ISO 9000 and similar quality
standards. They report on forward
and reverse traceability, allowing
you to easily document traceability from any asset to the equipment calibrated. It even includes
measurement uncertainty reporting to meet the requirements of
ISO/IEC 17025.
Pressure modules
An optional set of external pressure modules provides pressure
measurement capability. The
525B can accept either the Fluke
700 Series or the 525A-P pressure modules. Both module types
plug directly into the calibrator’s
front panel Lemo connector; the
525B firmware auto-detects the
type and value of the attached
module.
World-class temperature
and pressure calibration
solutions
In addition to the 525B Temperature/Pressure Calibrator, Fluke
Calibration offers a broad range
of solutions in temperature and
humidity calibration as well as
pressure and flow calibration.
Fluke Calibration makes everything you need for calibrating
temperature sensors including
SPRTs, PRTs, thermistors, and
thermocouples. The constant
temperature baths and dry-block
calibrators offer unmatched stability, and the primary temperature
standards are used in national
metrology institutes around the
world. For precision thermometry,
Fluke Calibration thermometer
readouts and probes are exceptionally accurate and easy to use,
and the 1620A “DewK” temperature and humidity data logger
handles your environmental
monitoring needs.
Fluke Calibration also offers a
range of high-end products focusing on pressure and flow calibrators and standards. More than 30
national measurement institutes
rely on Fluke Calibration pressure
standards to establish their pressure references. Fluke Calibration
pressure standards, transfer standards, pressure controller/calibrators and monitors are recognized
for their advanced features and
the realistic specifications that are
the hallmark of a true metrology
company.
Calibration service, repair,
and support
Fluke Calibration provides extensive calibration support and
service to maximize the value of
your calibration investment. Our
worldwide network of Calibration
Centers has traceability to national
standards. Service and support
are just a telephone call or fax
away. We offer fast, quality repair
and calibration services including a module exchange program,
comprehensive training, and full
support in setting up your lab.
General specifications
Warm-up time Twice the time since last warmed up, to a
Settling time Less than 5 seconds for all functions and
Standard interface Standard, RS-232; IEEE-488 (GPIB)
Temperature
performance
Electromagnetic
compatibility
Temperature
coefficient
Relative humidity Operating: < 80 % to 30 °C, < 70 % to 40 °C,
Altitude Operating: 3,050 m (10,000 ft) maximum
Safety EN 61010 Second, ANSI/ISA-S82.01-1994;
Analog low
isolation
EMC Designed to comply with IEC 61326-1/1997
Line power Line voltage (selectable): 100 V/120 V or
Power
consumption
Dimensions Height: 13.3 cm (5.25 in) plus 1.5 cm (0.6 in)
Weight (without
options)
maximum of 30 minutes
ranges except as noted
Operating: 0 °C to 50 °C
Calibration (tcal): 15 °C to 35 °C
Storage: -20 °C to 70 °C
Meets CE requirements, including
susceptibility
Temperature coefficient for temperatures
outside tcal +5 °C is 10 % of the 90 day specification (or 1 year, as applicable) per °C
< 40 % to 50 °C
Storage: < 95 %, non-condensing
Non-operating: 12,200 m (40,000 ft) maximum
CAN/CSA-C22.2 No. 1010.1-92, NRTL
20 V
(EMC)
220 V/240 V
Line frequency: 47 Hz to 63 Hz
Line voltage variation: ± 10 % about line
voltage setting
15 VA maximum
four feet on bottom
Width: 0.75 in standard rack width
Depth: 47.3 cm (18.6 in) overall
4 kg (9 lb)
2 Fluke Calibration 525B Temperature/Pressure Calibrator
General Specifications
Warm up time................................................................Twice the time since last warmed up, to a maximum of 30 minutes.
Settling time..................................................................Less than 5 seconds for all functions and ranges except as noted.
Standard interface.......................................................RS-232, IEEE-488 (GPIB)
Temperature performance
Operating ....................................................................0 °C to 50 °C
Calibration (tcal) ........................................................18 °C to 28 °C
Storage ........................................................................-20 °C to 70 °C
Electromagnetic compatibility..................................CE: Conforms to EN61326
Temperature coefficient.............................................Temperature coefficient for temperatures outside tcal ± 5 °C is
10 % of the 90 day specification (or 1 year if applicable) per °C
Relative humidity
Operating ....................................................................< 80 % to 30 °C, < 70 % to 40 °C, < 40 % to 50 °C
Storage ........................................................................< 95 % noncondensing
Altitude
Operating ....................................................................3,050 m (10,000 ft) maximum
Nonoperating..............................................................12,200 m (40,000 ft) maximum
Safety...............................................................................EN 61010 Second, ANSI/ISA-S82.01-1994,
CAN/CSA-C22.2 No. 1010.1-92, NRTL
Analog low isolation....................................................20 V
Line power
Line Voltage (selectable) ..........................................00 V/120 V or 220 V/240 V
Line Frequency ..........................................................47 to 63 Hz
Line Voltage Variation ..............................................± 10 % about line voltage setting
Power consumption.....................................................15 VA maximum
Dimensions
Height..........................................................................13.3 cm (5.25 in) plus 1.5 cm (0.6 in) four feet on bottom
Width...........................................................................¾ standard rack width
Depth...........................................................................47.3 cm (18.6 in) overall
Weight (without options)..............................................4 kg (9 lb)
Electrical Specifications
DC Voltage Specifications, Output
V6
V6
V6
DC Current Specifications, Output
Absolute Uncertainty,
Ranges
[1]
±
(ppm of output + µV)
90 days 1 year
0 to 100.000 mV 25 3303 5 + 2 1 µV 10 mA
0 to 1.00000 V 25 10 30 10 4 + 10 10 µV10 mA
0 to 10.0000 V 25 10030100 4 + 100 100 µV 10 mA
0 to 100.000 V 25 1 mV 30 1 mV 5 + 1 mV 1 mV 1 mA
-10 to 75.000 mV 25 3303 5 + 21µV10 Ω
Notes:
[1] All outputs are positive only.
[2] Remote sensing is not provided. Output resistance is < 1Ω.
Ranges
0 to 100.000 mV 1 µ
0 to 1.00000 V 10 µ
0 to 10.0000 V 100 µ
0 to 100.000 V 10 ppm+1 mV 20 mV
0 to 100.000 mA 40 1501 1 μA 12 V 100 mH
Note:
[1] All outputs are positive only.
Ranges
[1]
tcal ± 5 °C ± (ppm of output + µA)
Ranges
0 to 100.000 mA 2000 nA 20 μA
5 °C
tcal ±
TC Output
Bandwidth 0.1 to 10 Hz
(ppm of output + µV p-p)
±
Absolute Uncertainty
90 days 1 year
Bandwidth
0.1 to 10 Hz p-p
Stability
24 hours, ±
(ppm of output + µV)
±
1 °C
Noise
Resolution
Noise
Bandwidth 10 Hz to 10 kHz
Maximum
Compliance
Voltage
10 Hz to 10 kHz rms
Resistance Specifications, Output
[1]
Ranges
5 to 400.00 Ω 0.012 0.015 0.001 Ω 1 to 3 mA
5 to 4.0000 kΩ 0.25 0.3 0.01 Ω 100 μA to 1 mA
Notes:
[1] Continuously variable from 0 to 4 kΩ.
Absolute Uncertainty
tcal ± 5°C, ±
Ω
Resolution Allowable Current
90 days 1 year
Resolution
(µV rms)
µV
0 µV
00 µV
Bandwidth
Maximum
[2]
Burden
Maximum
Inductive Load
[2]
[2] For currents lower than shown, the floor adder increases by Floor
For example, a 500 μA stimulus measuring 100 Ω has a floor uncertainty of 0.015 Ω x 1 mA/500 μA = 0.03 Ω.
(new)
= Floor
(old)
x I
min/Iactual
.
Resistance Specifications, Input
[1]
Ranges
5 to 400.00 Ω 20 0.0035 20 0.004 0.001 Ω 1mA
5 to 4.00000 kΩ 20 0.0035 20 0.004 0.01 Ω 0.1 mA
Note:
[1] 4-wire mode.
Absolute Uncertainty
tcal ± 5°C, ± (ppm of output + Ω)
90 days 1 year
Resolution Stimulus Current
525B Temperature/Pressure Calibrator Fluke Calibration 3
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