7526A Calibration

7526A Precision Process Calibrator Calibration Manual March 2013 © 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.

LIMITED WARRANTY AND 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 Fluke Europe B.V. P.O. Box 9090 P.O. Box 1186 Everett, WA 98206-9090 5602 BD Eindhoven U.S.A. The Netherlands 11/99

Table of Contents Title Page Introduction ........................................................................................................ 1 Contact Fluke Calibration .................................................................................. 1 Safety Information ............................................................................................. 2 Specifications ..................................................................................................... 4 Resistance Specifications, Output ................................................................. 6 RTD and Thermistor Specification, Output .................................................. 8 Maintenance ....................................................................................................... 10 Clean the Product .......................................................................................... 10 Replace a Line Fuse ....................................................................................... 10 Change the Line Voltage ............................................................................... 11 Performance Tests .............................................................................................. 12 Required Test Equipment .............................................................................. 12 DC Voltage .................................................................................................... 13 DC Current .................................................................................................... 14 Thermocouple Output .................................................................................... 15 CJC (Cold Junction Compensation) .............................................................. 16 Thermocouple Input ...................................................................................... 17 Ohms Output ................................................................................................. 18 Ohms Input .................................................................................................... 19 Pressure Modules ........................................................................................... 22 Isolated DC Voltage ...................................................................................... 23 Isolated DC Current ....................................................................................... 24 Isolated Loop Power ...................................................................................... 24 Calibration Adjustment ...................................................................................... 25 Initiate Communication ................................................................................. 25 Starting Adjustment Mode ............................................................................ 25 Adjustment Sequence .................................................................................... 26 Steps 1 through 4: DC mV and DC V Source Adjustment ............................ 26 Step 5: 100 mA Source - DC Current Source Adjustment ............................ 27 Steps 6 and 7: Hi Ohms Source and Low Ohms Source Adjustment ............ 28 Steps 8 through 11: 100 Ohms Measure, Resistance Measure Adjustment .. 29 Step 12: TC SOURCE, TC mV Source Adjustment ..................................... 30 Step 13: TC Read, TC mV Measure Adjustment .......................................... 31 Step 14: TC Cold Junction Temperature (TC CJC) Adjustment ................... 31 Step 15: mA Read Adjustment ...................................................................... 31 Step 16: 10 V Read Adjustment .................................................................... 32 i

7526A Calibration Manual Step 17: 100 V Read Adjustment .................................................................. 33 User-Replaceable Parts ...................................................................................... 34 Accessories ........................................................................................................ 36 ii

List of Tables Table Title Page 1. Symbols .................................................................................................................. 3 2. Replacement Fuses ................................................................................................. 10 3. Required Equipment ............................................................................................... 12 4. DC Voltage Verification ........................................................................................ 13 5. DC Current Verification ......................................................................................... 14 6. TC mV Test ............................................................................................................ 15 7. Ohms Output Ranges ............................................................................................. 18 8. Ohms Ratio Table .................................................................................................. 20 9. Isolated DC Voltage ............................................................................................... 23 10. Isolated DC Current ............................................................................................... 24 11. User-Replaceable Parts .......................................................................................... 34 12. Accessories ............................................................................................................. 36 iii

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List of Figures Figure Title Page 1. Replace the Line Fuse ............................................................................................ 11 2. DC Current Performance Test Connections ........................................................... 14 3. Thermocouple Output Performance Test Connections .......................................... 15 4. CJC Performance Test Connections ....................................................................... 16 5. TC Input Performance Test Connections ............................................................... 17 6. Resistance Output Performance Test Connections ................................................ 18 7. Ohms Input Performance Test Connections ........................................................... 19 8. Ohms Measurement Performance Test Connections ............................................. 21 9. Pressure Module Performance Test Connections ................................................... 22 10. Isolated DC Voltage Performance Test Connections ............................................. 23 11. Isolated DC Current Performance Test Connections ............................................. 24 12. DC Volts Source Performance Test Connections .................................................. 27 13. High and Low Ohms Adjustment Connections ...................................................... 27 14. Hi Ohms Source and Low Ohms Source Adjustment Connections ....................... 28 15. 100 Ohms Measure, Resistance Measurement Adjustment Connections .............. 29 16. mA Read Adjustment Connections ........................................................................ 32 17. 10 V Read Adjustment Connections ...................................................................... 33 18. User-Replaceable Parts .......................................................................................... 35 v

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Introduction Warning To prevent possible electrical shock, fire, or personal injury, read all safety information before you use the Product. This manual contains the verification and calibration adjustment procedures for the 7526A Precision Process Calibrator (the Product). Please see the 7526A Users Manual for usage information. The Product is an accurate, full-featured temperature, pressure, and dc calibrator. It is meant for research and development, manufacturing, and calibration laboratory procedures. Contact Fluke Calibration To contact Fluke Calibration, call one of the subsequent telephone numbers: • Technical Support USA: 1-877-355-3225 • Calibration/Repair USA: 1-877-355-3225 • Canada: 1-800-36-FLUKE (1-800-363-5853) • Europe: +31-40-2675-200 • Japan: +81-3-6714-3114 • Singapore: +65-6799-5566 • China: +86-400-810-3435 • Brazil: +55-11-3759-7600 • Anywhere in the world: +1-425-446-6110 To see product information and download the latest manual supplements, visit Fluke Calibration’s website at www.flukecal.com. To register your product, visit http://flukecal.com/register-product. 1

7526A Calibration Manual Safety Information A Warning identifies conditions and procedures that are dangerous to the user. A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test. Warnings To prevent possible electrical shock, fire, or personal injury: • Read all safety Information before you use the Product. • Carefully read all instructions. • Use the Product only as specified, or the protection supplied by the Product can be compromised. • Use this Product indoors only. • Examine the case before you use the Product. Look for cracks or missing plastic. Carefully look at the insulation around the terminals. • Use only the mains power cord and connector approved for the voltage and plug configuration in your country and rated for the Product. • Replace the mains power cord if the insulation is damaged or if the insulation shows signs of wear. • Make sure the ground conductor in the mains power cord is connected to a protective earth ground. Disruption of the protective earth could put voltage on the chassis that could cause death. • Do not put the Product where access to the mains power cord is blocked. • Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc. • Use only cables with correct voltage ratings. • Do not apply more than the rated voltage, between the terminals or between each terminal and earth ground. • Do not use the Product around explosive gas, vapor, or in damp or wet environments. • Remove all probes, test leads, and accessories that are not necessary for the measurement. • Do not use the Product if it operates incorrectly. • Do not use and disable the Product if it is damaged. 2

Precision Process Calibrator Safety Information Table 1 shows the symbols used on the Product and in this manual. Table 1. Symbols Symbol Definition Symbol Definition This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category:  Risk of Danger. Important information.  With reference to the equipment types See Manual. in the WEEE Directive Annex I, this product is classed as category 9 "Monitoring and Control Instrumentation” product. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information.  Hazardous voltage. Risk of electric  Fuse shock.  AC (Alternating Current)  Protective Earth Ground  Conforms to European Union Earth Terminal  directives.  AC (Alternating Current) and DC (Direct  DC (Direct Current) Current) This product has been tested to the  requirements of CAN/CSA-C22.2  Pressure No. 61010-1, third edition. 3

7526A Calibration Manual Specifications 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 Interfaces .............................. 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 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 Altitude Operating .......................................... 3,000 m (9,800 ft) maximum Non-operating ................................... 12,200 m (40,000 ft) maximum Safety .................................................... EN/IEC 61010-1, ANSI/ISA 61010-1, CAN/CSA 22.2 No. 61010-1 EMC ........................................................ Complies with EN/IEC 61326-1, EN/IEC 61326-2-1 for controlled EM environments except when used in the following conditions: • In electromagnetic fields from 0.08-2.7 GHz in excess of 1V/m. • When subjected to electrostatic discharge (ESD) to the binding posts. Good static awareness practices should be followed when handling this product such as discharging any built up static charge to the product chassis prior to handling terminals or test connections. • When the product is used with data I/O cables in excess of 3 m. Analog Low Isolation ............................ 20 V Line Power Line Voltage (selectable) 120 V~ ................................................... 100 V to 120 V 240 V~ .................................................... 220 V to 240 V Line Frequency ..................................... 47 to 63 Hz Line Voltage Variation .......................... ±10 % about setting Power Consumption ............................ 15 VA maximum Dimensions Height ............................................. 14.6 cm (5.75 inch) Width ............................................... 44.5 cm (17.5 inch) Depth .............................................. 29.8 cm (11.75 inch) overall Weight (without options) ...................... 4.24 kg (9.35 lb) 4

Precision Process Calibrator Specifications DC Voltage Specifications, Output Absolute Uncertainty, tcal ±5°C, Stability [1] ±(ppm of output +µV) Ranges Resolution Maximum ° Burden [2] 24 hours, ±1 C 90 Days 1 Year ±(ppm of output +μV) 0 mV to 100.000 mV 25 3 30 3 5 ppm + 2 μV 1 μV 10 mA 0 V to 1.00000 V 25 10 30 10 4 ppm + 10 μV 10 μV 10 mA 0 V to 10.0000 V 25 100 30 100 4 ppm + 100 μV 100 μV 10 mA 0 V to 100.000 V 25 1 mV 30 1 mV 5 ppm + 1 mV 1 mV 1 mA [1] All outputs are positive only, unless otherwise noted. [2] Remote sensing is not provided. Output resistance is < 1Ω. Noise Bandwidth 0.1 to 10 Hz p-p Bandwidth 10 Hz to Ranges ±(ppm of output +µV) 10 kHz rms µV 0 mV to 100.000 mV 1 μV 6 μV 0 V to 1.00000 V 10 μV 60 μV 0 V to 10.0000 V 100 μV 600 μV 0 V to 100.000 V 10 ppm+1 mV 20 mV DC Voltage Specifications, Thermocouple Jack, Input and Output Absolute Uncertainty, tcal ±5°C, Stability [1] ±(ppm of output +µV) Ranges Resolution Maximum [2] 24 hours, ±1 °C Burden 90 Days 1 Year ±(ppm of output +μV) -10 to 75.000 mV 25 2 μV 30 2 μV 5 ppm + 2 μV 1 μV 10 Ω [1] All outputs are positive only, unless otherwise noted. [2] Remote sensing is not provided. Output resistance is < 1Ω. DC Voltage Specifications, Isolated Input Absolute Uncertainty, tcal ±5 °C, Ranges Resolution ±(ppm of reading + mV) 0 V to 10.0000 V 50 0.2 100 μV 0 V to 100.000 V 50 2.0 1 mV DC Current Specifications, Output Absolute Uncertainty, tcal ±5 °C, Maximum Maximum Ranges [1] ± (ppm of output + µA) Resolution Compliance Inductive 90 Days 1 Year Voltage Load 0 mA to 100.000 mA 40 [2] 1 50 [2] 1 1 μA 12 V 100 mH [1] All outputs are positive only. [2] For line voltages less than 95 V (±100 ppm of reading) Noise Ranges Bandwidth 0.1 to 10 Hz p-p Bandwidth 10 Hz to 10 kHz rms μV 0 mA to 100.000 mA 2000 nA 20 μA DC Current Specifications, Isolated Input Absolute Uncertainty, tcal ±5 °C, Ranges Resolution ±(ppm of reading + μA) 0 mA to 50.0000 mA 100 1 0.1 μA 0 mA to 24.0000 mA (Loop Power) [1][2] 100 1 0.1 μA [1] Loop Power: 24 V ±10 % [2] HART Resistor: 250 Ω ±3 % 5

7526A Calibration Manual Resistance Specifications, Output Absolute Uncertainty, Ranges tcal ±5 °C, ± Ohms Resolution Nominal Current [1] 90 Days 1 Year 5 Ω to 400.000 Ω 0.012 0.015 0.001 Ω 1 to 3 mA 5 Ω to 4.00000 kΩ 0.25 0.3 0.01 Ω 100 μA to 1 mA [1] For currents lower than shown, the specification becomes New Spec. = Stated Spec. x Imin/Iactual. For example, a 500 μA stimulus that measures 100 Ω has a specification of: 0.015 Ω x 1 mA/500 μA=0.03 Ω Resistance Specifications, Input Absolute Uncertainty, tcal ±5 °C Ranges ±(ppm of reading + Ω) Resolution Stimulus Current 90 Days 1 Year 0 Ω to 400.000 Ω ±20 ppm + 0.0035 Ω ±20 ppm + 0.004 Ω 0.001 Ω 1 mA 0 Ω to 4.00000 kΩ ±20 ppm + 0.035 Ω ±20 ppm + 0.04 Ω 0.01 Ω 0.1 mA Thermocouple Specification, Output and Input Absolute Uncertainty, tcal ±5 °C, ±(°C) [1] Range (°C) TC Type Output/Input Minimum Maximum 90 days 1 Year 600 °C 800 °C 0.35 °C 0.35 °C B 800 °C 1550 °C 0.28 °C 0.28 °C 1550 °C 1820 °C 0.21 °C 0.22 °C 0 °C 1000 °C 0.15 °C 0.16 °C 1000 °C 1800 °C 0.22 °C 0.23 °C C 1800 °C 2000 °C 0.24 °C 0.26 °C 2000 °C 2316 °C 0.32 °C 0.35 °C -250 °C -200 °C 0.24 °C 0.25 °C -200 °C -100 °C 0.10 °C 0.12 °C E -100 °C 0 °C 0.07 °C 0.09 °C 0 °C 600 °C 0.06 °C 0.08 °C 600 °C 1000 °C 0.08 °C 0.10 °C -210 °C -100 °C 0.13 °C 0.14 °C J -100 °C 800 °C 0.07 °C 0.09 °C 800 °C 1200 °C 0.08 °C 0.10 °C -250 °C -200 °C 0.45 °C 0.46 °C -200 °C -100 °C 0.15 °C 0.16 °C K -100 °C 500 °C 0.08 °C 0.10 °C 500 °C 800 °C 0.09 °C 0.10 °C 800 °C 1372 °C 0.11 °C 0.13 °C -200 °C -100 °C 0.08 °C 0.10 °C L -100 °C 900 °C 0.07 °C 0.09 °C -250 °C -200 °C 0.72 °C 0.73 °C -200 °C -100 °C 0.22 °C 0.23 °C -100 °C 0 °C 0.11 °C 0.12 °C N 0 °C 100 °C 0.09 °C 0.11 °C 100 °C 800 °C 0.08 °C 0.10 °C 800 °C 1300 °C 0.10 °C 0.12 °C 6

Precision Process Calibrator Specifications Absolute Uncertainty, tcal ±5 °C, ±(°C) [1] Range (°C) TC Type Output/Input Minimum Maximum 90 days 1 Year -50 °C -25 °C 0.54 °C 0.55 °C -25 °C 0 °C 0.44 °C 0.45 °C 0 °C 100 °C 0.38 °C 0.39 °C 100 °C 400 °C 0.27 °C 0.28 °C R 400 °C 600 °C 0.21 °C 0.22 °C 600 °C 1000 °C 0.19 °C 0.21 °C 1000 °C 1600 °C 0.18 °C 0.19 °C 1600 °C 1767 °C 0.21 °C 0.23 °C -50 °C -25 °C 0.51 °C 0.51 °C -25 °C 0 °C 0.43 °C 0.43 °C 0 °C 100 °C 0.37 °C 0.38 °C 100 °C 400 °C 0.28 °C 0.29 °C S 400 °C 600 °C 0.22 °C 0.23 °C 600 °C 1000 °C 0.21 °C 0.22 °C 1000 °C 1600 °C 0.20 °C 0.22 °C 1600 °C 1767 °C 0.24 °C 0.26 °C -250 °C -200 °C 0.34 °C 0.35 °C -200 °C -100 °C 0.14 °C 0.16 °C T -100 °C 0 °C 0.09 °C 0.11 °C 0 °C 200 °C 0.07 °C 0.09 °C 200 °C 400 °C 0.06 °C 0.09 °C -200 °C 0 °C 0.15 °C 0.16 °C U 0 °C 200 °C 0.08 °C 0.10 °C 200 °C 600 °C 0.07 °C 0.10 °C -200 °C -100 °C 0.10 °C 0.11 °C -100 °C 0 °C 0.07 °C 0.09 °C XK 0 °C 600 °C 0.06 °C 0.08 °C 600 °C 800 °C 0.07 °C 0.09 °C 0 °C 200 °C 0.17 °C 0.18°C 200 °C 600 °C 0.14 °C 0.16 °C 600 °C 800 °C 0.15 °C 0.17 °C BP 800 °C 1600 °C 0.22 °C 0.23 °C 1600 °C 2000 °C 0.26 °C 0.28 °C 2000 °C 2500 °C 0.38 °C 0.40 °C [1] Does not include thermocouple wire error. Type B, E, J ,K, N, R, S and T are based on ITS-90 Type L and U are based on DIN 43710-1985 Type C is based on ASTM standard E 988-96 Type XK and BP are based on GOST R 8.585-2001 7

7526A Calibration Manual RTD and Thermistor Specification, Output Range °C Absolute Uncertainty, tcal ±5 °C ±(°C) [1] RTD Types Minimum Maximum 90 Days 1 Year Pt 385, 100 Ω -200 °C 800 °C 0.04 °C 0.05 °C Pt 3926, 100 Ω -200 °C 630 °C 0.04 °C 0.05 °C Pt 3916, 100 Ω -200 °C 630 °C 0.04 °C 0.05 °C -200 °C 400 °C 0.35 °C 0.40 °C Pt 385, 200 Ω 400 °C 630 °C 0.42 °C 0.50 °C Pt 385, 500 Ω -200 °C 630 °C 0.15 °C 0.17 °C Pt 385, 1000 Ω -200 °C 630 °C 0.07 °C 0.09 °C Ni 120, 120 Ω -80 °C 260 °C 0.02 °C 0.02 °C Cu 427, 10 Ω [2] -100 °C 260 °C 0.30 °C 0.38 °C YSI 400 15 °C 50 °C 0.005 °C 0.007 °C [1] 2-wire output [2] Based on MINCO Application Aid No. 18 RTD and Thermistor Specification, Input Absolute Uncertainty, tcal ±5 °C, ±(°C) [1] Range (°C) RTD Type Output/Input Minimum Maximum 90 Days 1 Year -200 °C -80 °C 0.012 °C 0.013 °C -80 °C 100 °C 0.018 °C 0.020 °C 100 °C 300 °C 0.022 °C 0.024 °C Pt 385, 100 Ω 300 °C 400 °C 0.025 °C 0.026 °C 400 °C 630 °C 0.031 °C 0.033 °C 630 °C 800 °C 0.037 °C 0.038 °C -200 °C -80 °C 0.012 °C 0.013 °C -80 °C 0 °C 0.014 °C 0.015 °C 0 °C 100 °C 0.016 °C 0.017 °C Pt 3926, 100 Ω 100 °C 300 °C 0.022 °C 0.022 °C 300 °C 400 °C 0.022 °C 0.026 °C 400 °C 630 °C 0.024 °C 0.032 °C -200 °C -190 °C 0.009 °C 0.010 °C -190 °C -80 °C 0.012 °C 0.013 °C -80 °C 0 °C 0.014 °C 0.015 °C 0 °C 100 °C 0.016 °C 0.017 °C Pt 3916, 100 Ω 100 °C 300 °C 0.021 °C 0.022 °C 300 °C 400 °C 0.024 °C 0.026 °C 400 °C 600 °C 0.030 °C 0.031 °C 600 °C 630 °C 0.031 °C 0.033 °C -200 °C -80 °C 0.047 °C 0.053 °C -80 °C 0 °C 0.050 °C 0.056 °C 0 °C 100 °C 0.053 °C 0.060 °C Pt 385, 200 Ω 100 °C 260 °C 0.054 °C 0.060 °C 260 °C 300 °C 0.062 °C 0.069 °C 300 °C 400 °C 0.064 °C 0.071 °C 400 °C 630 °C 0.079 °C 0.088 °C -200 °C 0 °C 0.023 °C 0.025 °C 0 °C 100 °C 0.026 °C 0.028 °C Pt 385, 500 Ω 100 °C 300 °C 0.031 °C 0.034 °C 300 °C 400 °C 0.035 °C 0.038 °C 400 °C 630 °C 0.041 °C 0.045 °C 8

Precision Process Calibrator Specifications Absolute Uncertainty, tcal ±5 °C, ±(°C) [1] Range (°C) RTD Type Output/Input Minimum Maximum 90 Days 1 Year -200 °C 0 °C 0.014 °C 0.015 °C 0 °C 100 °C 0.017 °C 0.018 °C Pt 385, 1000 Ω 100 °C 300 °C 0.022 °C 0.024 °C 300 °C 400 °C 0.024 °C 0.026 °C 400 °C 630 °C 0.031 °C 0.033 °C Ni 120, 120 Ω -80 °C 260 °C 0.008 °C 0.009 °C Cu 427, 10 Ω [2] -100 °C 260 °C 0.097 °C 0.110 °C YSI 400 15 °C 50 °C 0.005 °C 0.007 °C SPRT -200 °C 660 °C 0.05 °C 0.06 °C [1] 4-wire mode. Uncertainties shown do not include probe uncertainties. [2] Based on MINCO Application Aid No. 18. Pressure Measurement Specifications The Calibrator can accept the Fluke 700 or 525A-P Series pressure modules. Pressure modules connect directly into the front panel Lemo connector with the Calibrator firmware auto-detecting the type and value of the module you connect. Range Accuracy and Resolution Units Determined by the pressure module Determined by the pressure module PSI (pounds per square inch) in H2O 4 °C (inches of water at 4 degrees Celsius) in H2O 20 °C (inches of water at 20 degrees Celsius) in H2O 60 °C (inches of water at 60 degrees Fahrenheit) cm H2O 4 °C (centimeters of water at 4 degrees Celsius) cm H2O 20 °C (centimeters of water at 20 degrees Celsius) mm H2O 4 °C (millimeters of water at 4 degrees Celsius) mm H2O 20 °C (millimeters of water at 20 degrees Celsius) BAR (bars) mBAR (millibars) kPa (kilopascals) MPa (megapascals) in HG 0 °C (inches of mercury at 0 degrees Celsius) mm HG 0 °C (millimeters of mercury at 0 degrees Celsius) kg/cm2 (kilograms per square centimeter) Switch Test Specifications, Isolated Input Contact Closure Resistance <1 kΩ Excitation Current 27 mA Max 9

7526A Calibration Manual Maintenance This section explains typical maintenance and tasks necessary to keep the Product in service. Warnings To prevent possible electrical shock, fire, or personal injury: • Have an approved technician repair the Product. • Disconnect the mains power cord before you remove the Product covers. • Do not operate the Product with covers removed or the case open. Hazardous voltage exposure is possible. • Use only specified replacement parts. Clean the Product Clean the Product and pressure modules with a soft cloth dampened with water, or mild soap and water. Replace a Line Fuse The line power fuses and line voltage selector are found in the compartment above the power switch on the right rear side of the Product. Table shows the correct replacement fuse for each line voltage setting. Table 2. Replacement Fuses Fuse Description Line Voltage Setting  0.25 A/250 V (SB) 120 V (Operating Range 90 V to 132 V)  0.125 A/250 V (SB) 240 V (Operating Range 198 V to 264 V) To ensure safety, use exact replacement only. To examine or replace a fuse: 1. Disconnect the mains power. 2. Use a flat-head screwdriver to pry up the tab at the base of the line fuse compartment. Insert the blade into the center slot under the tab. The compartment cover will come part way out. See Figure 1. 3. Remove the compartment cover. The fuses come out with the compartment cover and can be examined or replaced. 4. To install the fuse holder, push the compartment cover back into the compartment until the tab locks in position. 10

Precision Process Calibrator Maintenance I o Changing Line Fuse gxm009.eps Figure 1. Replace the Line Fuse Change the Line Voltage The Product comes from the factory configured for the line voltage applicable for the country of purchase, or as specified when it is ordered. To verify the line voltage setting, examine the line voltage indicator on the power line fuse compartment cover. Make sure that the line voltage selection is set for 120 V for line voltages between 100 V and 120 V ±10 % about setting. The selector must be set to 240 V for line voltages between 220 V and 240 V ±10 % about setting. 11

7526A Calibration Manual Performance Tests Warning To prevent possible electrical shock, fire, or personal injury, do not perform the performance test procedures unless the Product is fully assembled. The performance tests verify the complete operation of the Product and measure the accuracy of each function against Product specifications. If the Product fails a part of the test, calibration adjustment or repair is necessary. See “Calibration Adjustment”. Required Test Equipment The equipment listed in Table 3 is necessary to do the performance tests and calibration adjustment. Table 3. Required Equipment Equipment Recommended Model Where Used 8-1/2 digit Precision Digital Fluke 8508A DC volts, dc current, resistance Multimeter (DMM) Low ohms measure and SPRT Ohms shorting block calibration and high ohms measure calibration 1 Ω Resistance Standard Fluke 742A-1 DC current Resistance standard, 10 Ω Fluke 742A-10 100 mA source calibration Ω Low ohms measure and SPRT Resistance standard, 100 Fluke 742A-100 calibration 1 KΩ Resistance Standard Fluke 742A-1K Resistance 10 KΩ Resistance Standard Fluke 742A-10K Resistance Multifunction Calibrator Fluke 5522A DC volts, dc current, resistance Thermistor probe Fluke5640-D TC CJC calibration Omega E-type thermocouple Thermocouple probe TC CJC calibration probe Pressure Module Any Fluke 700 Series Module Pressure Lead Set 5520A-525A/LEADS Leads Kit Necessary test cables Precision Thermistor Fluke 5640-D Temperature Thermometer Readout Fluke 1504 Temperature Dewar Flask with Lid - - - Thermocouple Characterized Type E - - - Thermocouple Thermocouple Banana Jack to Copper TC Mini- - - - Thermocouple connector Lag bath TC CJC calibration 12