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Thank you for purchasing the MX825-J Multi-function process calibrator. This manual describes the configuration,
operation and maintenance of the MX825-J Multi-function process calibrator. To ensure correct use, please read this
manual thoroughly and have a clear understanding of the calibrator before operation.
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This manual should be read by the end user.
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UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED warrants goods of its manufactures being free of defective materials
and faulty workmanship. If warranted goods are returned to UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED or its
representatives during the period of coverage of one year, UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED will repair
or replace without charge any defective items. UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED guarantees all the
goods with life maintenance.
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Specifications or other contents of this manual are subject to change without prior notice for improvement. When there is a
possibility that the foregoing change may result in serious accident or injury, UK SAMPSON EQUIPMENT INTERNATIONAL
LIMITED will give notice in advance.
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Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you
have any questions or find any errors, please contact your nearest customer service.
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Do not modify this. UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED assumes no liability for any loss or damage, direct
or indirect, caused by the user.
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Copying or reproducing all or any part of the contents of this manual without the permission of UK SAMPSON EQUIPMENT
INTERNATIONAL LIMITED.
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This symbol indicates a hazardous situation, which, if not avoided, could result in death, serious injury or
property damage.
Caution
This symbol indicates a potentially hazardous situation, which, if not avoided, might result in damage to the
MX825-J Multi-function process calibrator or surroundings.
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MX825-JMulti-function process calibrator Users Manual
Notes
MX825-J Multi-function process calibrator Users Manual
Symbol Definitions
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Table of Contents
Summary of Contents for Sampson Equipment MX825-J
- Page 1 Do not modify this. UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED assumes no liability for any loss or damage, direct or indirect, caused by the user. • Copying or reproducing all or any part of the contents of this manual without the permission of UK SAMPSON EQUIPMENT INTERNATIONAL LIMITED. MX825-J Multi-function process calibrator Users Manual...
- Page 2 Do not use the with any part of the case or cover removed. • Do not measure a voltage source when the test leads are plugged into the current jacks. MX825-J Multi-function process calibrator Users Manual Caution • MX825-J Multi-function process calibrator...
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Page 3: Table Of Contents
MX825-J Multi-function process calibrator CONTENTS Introduction .................................. 1 Standard Equipments..............................1 Getting started ................................5 MX825-J Multi-function process calibrator Summary ....................7 Jacks..................................7 Keys ..................................9 Display ................................. 12 Using Measure Mode ..............................13 Measuring Voltage (Upper Display)........................13 Measuring Current (Upper Display) ........................ - Page 4 Users Manual MX825-J Multi-function process calibrator 9.3.1 Calibrating Sourcing ................................35 9.3.2 Calibrating Measurement ................................36 9.3.3 Calibrating Cold Junction ................................36 Clear Function ................................38 10.1 Clear of Measuring Voltage..........................38 10.2 Clear of Sourcing Voltage ............................ 39 10.3 Clear of Measuring with TC..........................40 10.4...
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Page 5: Introduction
To order the optional parts, see ‘14 Optional Parts’. • • Counting pulse function Test probes (one set) • • Counting pulse function Users Manual Test leads (one set) • • Alligator clips (one set) Battery charge MX825-J Multi-function process calibrator Users Manual • 4 AA rechargeable batteries... - Page 6 — — (0~24)mA Counting pulse — 0~99999 — Frequency — (1~10k)Hz (1~5k)Hz Resistance — (0~3200)Ω (15~3200)Ω TC(Thermocouple) J, K, T, E, R, S, B, N (Resistance- Cu50 — Temperature Pt100(385) Detector) MX825-J Multi-function process calibrator Users Manual Figure2-1 Standard Equipment...
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Page 7: Getting Started
Getting started When you first unpack the MX825-J Multi-function process calibrator, you will need to charge the battery. After reinstalling the battery, please perform the test of sourcing and measuring V DC as follows, it will make be easier to understand the instructions in the rest of the manual. -
Page 8: Mx825-J Multi-Function Process Calibrator Summary
Jacks Figure4-1 shows the MX825-J Multi-function process calibrator Source/Measure jacks and Table4-1 explains their use. Auto flash jacks willl guide you to the correct connecting. For example, after you select to measure voltage in lower display, ⑥ and ⑦ in Figure4-1 will flash, and then you can put the test leads into the jacks correctly. -
Page 9: Keys
Users Manual MX825-J Multi-function process calibrator Keys Figure4-2 shows the MX825-J Multi-function process calibrator keys and Table4-2 explains their functions. Figure4-2 Keys MX825-J Multi-function process calibrator Users Manual Table4-2 Keys Functions Description Clears offset of Measure mode in the upper display. -
Page 10: Display
Terminates a numeric entry, when setting a source value; Begin/Stop counting pulse; Confirm your choice in a list. Numeric Used whenever a numeric entry is required. keypad MX825-J Multi-function process calibrator Users Manual Display Figure4-3 shows the elements of a typical display. Figure4-3 Elements of a Typical Display... -
Page 11: Using Measure Mode
Connect the test leads as shown in Figure5-1. as shown in Figure5-3. You should see the measurement readings in the upper display. The MX825-J Multi-function process calibrator supplies an internal 24V loop power. Measuring Current (Upper Display) You should see the measurement readings in the upper display. -
Page 12: Measuring Voltage (Lower Display)
Users Manual MX825-J Multi-function process calibrator Figure5-3 Connections for Supplying Loop Power MX825-J Multi-function process calibrator Users Manual Measuring Resistance Measuring Voltage (Lower Display) To measure the resistance, proceed as follows: To measure the voltage, proceed as follows: Press until the lower display shows “MEASURE”. -
Page 13: Measuring Frequency
MX825-J Multi-function process calibrator Users Manual Counting pulse Measuring Frequency The function of counting pulse is only applicable to MX825-J The function of Measuring Frequency is only applicable to Multi-function process calibrator. To use this function, proceed as MX825-J Multi-function process calibrator. To measure the... -
Page 14: Measuring Temperature With Tc
Users Manual MX825-J Multi-function process calibrator Figure5-6 Measuring Frequency Figure5-7 Connection of Counting Pulse MX825-J Multi-function process calibrator Users Manual Measuring Temperature with TC Measuring Temperature with RTDs MX825-J Multi-function process calibrator MX825-J Multi-function process calibrator accepts RTD supports eight types shown in Table5-2. - Page 15 Users Manual MX825-J Multi-function process calibrator CAUTION: Clear of RTD before measuring, according to ‘10.4 Clear of Resistance and RTD’. MX825-J Multi-function process calibrator Users Manual Table5-1 Thermocouple Types Accepted Type Specified Range (-200~1200)°C (-200~1370)°C (-200~400)°C (-100~950)°C (-20~1750)°C (-20~1750)°C (600~1800)°C (-200~1300)°C...
- Page 16 Users Manual MX825-J Multi-function process calibrator Figure5-8 Measuring Temperature with a TC MX825-J Multi-function process calibrator Users Manual Figure5-9 Measuring Temperature with an RTD...
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Page 17: Using Source Mode
Enter the desired output value by pressing numeric keypads Connect the test leads as shown in Figure6-2. Enter the desired output value by pressing numeric keypads and press and press MX825-J Multi-function process calibrator Users Manual Figure6-1 Voltage Sourcing Connections Figure6-2 Current Sourcing Connections... -
Page 18: Sourcing Resistance
Amplitude of the output frequency is displayed at the bottom right corner. You can press to adjust the amplitude. The step of amplitude is 0.5V, and the range is (0-8)V. MX825-J Multi-function process calibrator Users Manual Figure6-3 Resistance Sourcing Connections Figure6-4 Frequency Sourcing Connections... -
Page 19: Simulating Thermocouples
CAUTION: Clear of RTD before simulating according to junction temperature manually. ‘10.4 Clear of Resistance and RTD’. MX825-J Multi-function process calibrator Users Manual Figure6-5 Connections for Simulating a Thermocouple Figure6-6 Connections for Simulating an RTD... -
Page 20: Ramping And Stepping The Output
Enter the desired output value by pressing numeric keypads 0%~100%~0% 40 seconds smooth ramp; 0%~100%~0% 10 seconds smooth ramp; 0%－25%－50%－75%－100%－0%, stair-step ramp in 25% and press steps, pausing 25 seconds at each step. MX825-J Multi-function process calibrator Users Manual Figure6-7 Connections for Simulating a Transmitter... -
Page 21: Cold Junction
Press numeric keys and press , the display shows “COLD JUNC OK”. Press any key to exit the “SET COLD JUNC” mode. MX825-J Multi-function process calibrator Users Manual Entry and Exit Calibration MX825-J Multi-function process calibrator can only be calibrated by old hand. -
Page 22: Calibrating Sourcing
9.3.1 Calibrating Sourcing When the MX825-J Multi-function process calibrator is in calibration, the span is divided into several segments in order to The following example shows how to calibrate V DC. reach the maximal precision. For example, when sourcing First of all, the MX825-J Multi-function process calibrator resistance is calibrated, the span (0-3200)Ω... -
Page 23: Clear Function
Measure mVDC 100mV Measure mADC 0.1mA 20mA MX825-J Multi-function process calibrator Users Manual 10.1 Clear of Measuring Voltage 10 Clear Function Clear of Measuring V DC in upper display: Before sourcing or measuring DC voltage, resistance, RTDS and TC, offset errors caused by internal elements or external factors Press until the upper display shows “V”. -
Page 24: Clear Of Sourcing Voltage
Press to select Source mode. Press until the lower display shows “V”. Connect the MX825-J Multi-function process calibrator’s Press until the lower display shows “mV”. voltage output to its voltage input according to the flashing Connect the MX825-J Multi-function process calibrator’s jacks as Figure3-1 shows. -
Page 25: Clear Of Sourcing Tc
“SOURCE”. Press right to select a desired TC type. Connect the test leads as shown in Figure11-1. Press or numeric keypads to output the zero and span parameter. MX825-J Multi-function process calibrator Users Manual Figure11-1 Adjusting the Transmitter... -
Page 26: Maintenance
MX825-J Multi-function process calibrator 12 Maintenance Replace the batteries as follows: MX825-J Multi-function process calibrator Users Manual 13 Specifications All specifications apply from +18°C to +28°C unless stated otherwise. All specifications assume a 5-minute warm-up period. Temperature coefficient from -10°C to +18°C and +28°C to 55°C is ± 0.005%/°C of range per °C. - Page 27 (0.5~3)mA ±0.1Ω (0.4~1.5)kΩ (0.05~0.8)mA ±0.5Ω (1.5~3.2)kΩ (0.05~0.4)mA ±1.0Ω Clear of resistance before sourcing according to ‘10.4 Clear of Resistance and RTDs’. MX825-J Multi-function process calibrator Users Manual Frequency Range Accuracy (1~1100)Hz ±0.05% (1.0~10.0)kHz ±0.05% Measurement Sensitivity: Not less than 1V (peak- peak)
- Page 28 ±1.3°C (0~1300)°C ±0.7°C Resolution : J, K, T, E, N: 0.1°C B, R, S: 1°C Cold junction error: ±0.5°C, does not including sensor error. MX825-J Multi-function process calibrator Users Manual Accuracy Measure Range（°C） Type Output Measure 4-wire 2-, 3- (°C）...
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Page 29: Optional Parts
30g, 11ms, half sine bow wave Power requirement 4 AA Ni-MH, Ni-Cd batteries Size 215mm×109mm×44.5mm Weight About 500g MX825-J Multi-function process calibrator Users Manual 14 Optional Parts The optional parts list: • Alligator clips (one set) • Test Probes (one set) •...
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