525B Temperature/ Pressure Calibrator




Product Description

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 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.

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.

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.

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.

Pressure modules
An optional set of external pressure modules provides pressure measurement capability. The 525B can accept either the Fluke Calibration 700 Series pressure modules. These modules plug directly into the calibrator’s front panel Lemo connector; the 525B firmware auto-detects the type and value of the attached module.


Superior accuracy and functionality in an economical benchtop package

The 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 thermistors. It also measures pressure covering common ranges from 1 inch (6900 Pa) of water up to 10,000 PSI (69 Mpa) using the Fluke Calibration 700 Series or 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.


Specifications One Year (Source)  
Voltage (1 ma Max Load) 0 to 100 V
Best one year specification : 25 ppm of setting
Current (10V Compliance 0 – 100 mA
Best one year specification : 100 ppm of setting
Resistance 0 – 4,000 Ohms
Best one year specification : 0.001 Ohms
Thermocouple (B,C,E,J,K,L,N,R,S,T,U) Standard thermocouple ranges
Best one year specification : 0.12° C (type E)
Specifications One Year (Measure) 
SPRT 25.5 Ohm – 200° C to 660° C
Best one year specification : 0.02 C
Resistance 0 – 4,000 Ohms
Best one year specification : 0.02 Ohms
Thermocouple (B, C, E, J, K, L, N, R, S, T, U) Standard thermocouple ranges
Best one year specification : 0.12° C (type T)
RTD* -200° C to 660° C
Best one year specification : 0.015° C (pt 100)
Ni 120 – 80° C to 100° C
Best one year specification : 0.01° C
Cu 10 – 100° C to 260° C
Best one year specification : 0.06° C
YSI 400 thermistor 15° C to 50° C
Best one year specification : 0.007° C
General Specifications
Settling Time Less than 5 seconds
Standard Interfaces Standard RS-232 ;
Temperature Performance Operating : 0° C to 50° C
Calibration (tcal) : 15° C to 35° C
Storage : – 20° C to 70° C
Temperature Coefficient Temperature coefficient for temperatures outside tcal + 5° C is 10 % of the 90 day specification per °C
RH Operating : < 80% to 30° C, < 70 % to 40° C, 40 % to 50° C
Storage : <95%, noncondensing
Analog Low Isolation 20V
EMC IEC 61326- 1/1997 (EMC)
Calibration Documentation Report of calibration with data included; 17025 accredited report optional
Weight / Dimensions 9 lbs (4 kg) ; H 5.25″ x W 12.5″ x D 18.6″ (H 13.1 cm x W 31.3 cm x D 47.3 cm)

Models and Accessories

Model Name Description
525B Temperature / Pressure Calibrator

Accessories common to all models :

Accessory Description
750Pxx Pressure Module Series
5520A-525A/LEADS Test Lead Set
MET/CAL driver MET/CAL driver
525A/CASE Transit Case, accept 1 ea 525a w/addl cutouts for various accessories
Y525 Y525 Rack-Mount Kit for 525A

About us

บริษัท เมสเชอร์เมนท์เอเชีย จำกัด
Measurementasia Co.,Ltd.

99 Moo. 3, Khlong 5, Khlong Luang,
Pathumthani 12120



Helps / Questions