Fluke Calibration 525B
Temperature/Pressure Calibrator

  • 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 Calibration 700 Series and model 525-P pressure modules covering the most common pressure ranges from 0-1 H20 to 0-10,000 PSI.
  • Converts easily to any pressure 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 MET/CAL® Plus Calibration Management Software or custom automated programs with standard RS-232-C and GPIB 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.
  • Programmable setpoint dwell times for automated calibration and troubleshooting.
  • 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.
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Fluke Calibration 525B Shown

Product Information
Datasheet 1.1 MBPDF
Manual 1 MBPDF
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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 0-100V output and 0-100 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/I 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 hard working 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.
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 Standard, RS-232; IEEE-488 (GPIB)
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
Relative humidity Operating: < 80 % to 30 °C, < 70 % to 40 °C,
< 40 % to 50 °C
Storage: < 95 %, non-condensing
Altitude Operating: 3,050 m (10,000 ft) maximum
Non-operating: 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
EMC Designed to comply with IEC 61326-1/1997 (EMC)
Line power Line voltage (selectable): 100 V/120 V or 220 V/240 V
Line frequency: 47 Hz to 63 Hz
Line voltage variation: ± 10 % about line
voltage setting
15 VA maximum
Ordering Information
Model Description Buy Online Price
525B 120V Fluke Calibration 525B 120V Temperature/Pressure Calibrator Discontinued
Optional Accessories
MFR ID: 1631450
Fluke 525A-PV4 Vacuum Precision Pressure Module, -15 psi Buy Now
MFR ID: 1631369
Fluke 525A-P02 Precision Pressure Module, 1 psi Differntial Discontinued
MFR ID: 2429821
Fluke Calibration 525A-P03 Precision Pressure Module, 5 Psi/ 34 Kpa Discontinued
MFR ID: 2074781
Fluke 525A-P04 Precision Pressure Module, 15 psi Gauge Discontinued
MFR ID: 1631378
Fluke 525A-P05 Precision Pressure Module, 30 psi Gauge Discontinued
MFR ID: 1631384
Fluke 525A-P06 Precision Pressure Module, 100 psi Gauge Discontinued
MFR ID: 1631391
Fluke 525A-P07 Precision Pressure Module, 500 psi Gauge Discontinued
MFR ID: 1631406
Fluke 525A-P08 Precision Pressure Module, 1000 psi Gauge Discontinued
MFR ID: 1631414
Fluke Calibration 525A-P29 Precision Pressure Module, 3000 Psig Discontinued
MFR ID: 1631461
Fluke 525A-PA4 Precision Pressure Module, 15 psi Absolute Discontinued
MFR ID: 1631423
Fluke 525A-PA6 Precision Pressure Module, 100 psi Absolute Discontinued
MFR ID: 1631438
Fluke 525A-PA7 Precision Pressure Module, 500 psi Absolute Discontinued
MFR ID: 2097600
Fluke 700P06EX Intrinsically Safe Pressure Module, 100 psi Gauge Buy Now $2,299.95
MFR ID: 612223
Fluke 700PA5 Pressure Module 0-30 PSIA Discontinued
MFR ID: 2097621
Fluke 700PA4EX Intrinsically Safe Pressure Module 15 psi Absolute Discontinued
MFR ID: 612207
Fluke 700PA3 Pressure Module 0-5 PSIA Buy Now
MFR ID: 612249
Fluke 700PV3 Pressure Module -5 PSID Buy Now
MFR ID: 612256
Fluke 700PV4 Pressure Module -15PSID Discontinued
MFR ID: 1777605
Fluke Calibration 525A/CASE Transit Case Buy Now Sale $477.00
(Reg. $530.00)
MFR ID: 1622027
Fluke Calibration Y525 Rack Mount Kit Buy Now Sale $238.50
(Reg. $265.00)