Fluke 28IIEx User Manual
Page 1
Specifications are trademarks of their respective companies. Users Manual 28 II Ex True-rms Digital Multimeter November 2011 © 2011 Fluke Corporation. All product names are subject to change without notice. All rights reserved.
Specifications are trademarks of their respective companies. Users Manual 28 II Ex True-rms Digital Multimeter November 2011 © 2011 Fluke Corporation. All product names are subject to change without notice. All rights reserved.
Fluke 28IIEx User Manual
Page 4
28 II Ex Users Manual Continuity Tests ...20 Resistance Measurements 22 How to Use Conductance for High Resistance or Leakage Tests 24 Capacitance Measurements 25 Diode Tests...26 AC or DC Current Measurements 28 Frequency Measurements 31 Duty Cycle Measurements 33 How to Determine Pulse Width 34 HiRes Mode ...34 MIN MAX Recording Mode 35 Smooth... 46 Detailed Specifications 48 AC Voltage...48 DC Voltage, Conductance, and Resistance 49 Temperature ...50 AC Current ...50 DC Current...51 Capacitance ...51 Diode ...52 ii
28 II Ex Users Manual Continuity Tests ...20 Resistance Measurements 22 How to Use Conductance for High Resistance or Leakage Tests 24 Capacitance Measurements 25 Diode Tests...26 AC or DC Current Measurements 28 Frequency Measurements 31 Duty Cycle Measurements 33 How to Determine Pulse Width 34 HiRes Mode ...34 MIN MAX Recording Mode 35 Smooth... 46 Detailed Specifications 48 AC Voltage...48 DC Voltage, Conductance, and Resistance 49 Temperature ...50 AC Current ...50 DC Current...51 Capacitance ...51 Diode ...52 ii
Fluke 28IIEx User Manual
Page 11
... and MI as specified in the world: +1-425-446-5500 Or, visit Fluke's website at www.fluke.com. To register your product, visit http://register.fluke.com. Read the entire Users Manual before using the Product. How to operate measurement tool for operation in potentially explosive...print, or download the latest manual supplement, visit http://us.fluke.com/usen/support/manuals. 1 There can be dangerous consequences If you use the Product. Introduction WX Warning Read "Safety Information" before you do not follow these instructions. The 28 II Ex Digital Multimeter (the Product) is...
... and MI as specified in the world: +1-425-446-5500 Or, visit Fluke's website at www.fluke.com. To register your product, visit http://register.fluke.com. Read the entire Users Manual before using the Product. How to operate measurement tool for operation in potentially explosive...print, or download the latest manual supplement, visit http://us.fluke.com/usen/support/manuals. 1 There can be dangerous consequences If you use the Product. Introduction WX Warning Read "Safety Information" before you do not follow these instructions. The 28 II Ex Digital Multimeter (the Product) is...
Fluke 28IIEx User Manual
Page 12
...under the described conditions. You can also order them from Fluke. A Caution identifies conditions and actions that can be followed for this product. EX Safety Information Note Go to the user. 28 II Ex Users Manual Safety Information The Product complies with ATEX requirements (ATEX 137)... (see the EX safety instructions & regulations section) In this manual, a Warning identifies conditions and actions ...
...under the described conditions. You can also order them from Fluke. A Caution identifies conditions and actions that can be followed for this product. EX Safety Information Note Go to the user. 28 II Ex Users Manual Safety Information The Product complies with ATEX requirements (ATEX 137)... (see the EX safety instructions & regulations section) In this manual, a Warning identifies conditions and actions ...
Fluke 28IIEx User Manual
Page 14
... face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed • See the "EX Safety Information" section for additional warnings on Product use in hazardous areas. 4 • Use the Product only as specified, or the ... permanent contact with local and national safety codes. Examine the test leads for cracks or missing plastic. Check test lead continuity. 28 II Ex Users Manual WX Warning To prevent personal injury in a fixed installation. WX Warning To prevent possible electrical shock, fire, or personal injury ...
... face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed • See the "EX Safety Information" section for additional warnings on Product use in hazardous areas. 4 • Use the Product only as specified, or the ... permanent contact with local and national safety codes. Examine the test leads for cracks or missing plastic. Check test lead continuity. 28 II Ex Users Manual WX Warning To prevent personal injury in a fixed installation. WX Warning To prevent possible electrical shock, fire, or personal injury ...
Fluke 28IIEx User Manual
Page 16
... and reliability of the Product. • The Product has had an excessive load put on it for which it from operation and the Ex-hazardous areas immediately. 28 II Ex Users Manual WCaution To avoid possible damage to the Product or to prevent Product operation by others until the Product is examined by an ecom...
... and reliability of the Product. • The Product has had an excessive load put on it for which it from operation and the Ex-hazardous areas immediately. 28 II Ex Users Manual WCaution To avoid possible damage to the Product or to prevent Product operation by others until the Product is examined by an ecom...
Fluke 28IIEx User Manual
Page 18
See Manual. Conforms to European Union directives. Symbols J Earth ground DC (Direct Current) X Hazardous voltage I Fuse P Conforms to ATEX directive. Important information. Battery. Low...Æ Conforms to Fluke's website for recycling information. 8 W Risk of this product as distribution panels, feeders and short branch circuits, and lighting systems in fixedequipment installations, such as unsorted municipal waste. Go to CAN/CSA-C22.2 No. 61010-1 2nd, + Amendment 1. ~ Do not dispose of Danger. 28 II Ex Users Manual AC (...
See Manual. Conforms to European Union directives. Symbols J Earth ground DC (Direct Current) X Hazardous voltage I Fuse P Conforms to ATEX directive. Important information. Battery. Low...Æ Conforms to Fluke's website for recycling information. 8 W Risk of this product as distribution panels, feeders and short branch circuits, and lighting systems in fixedequipment installations, such as unsorted municipal waste. Go to CAN/CSA-C22.2 No. 61010-1 2nd, + Amendment 1. ~ Do not dispose of Danger. 28 II Ex Users Manual AC (...
Fluke 28IIEx User Manual
Page 20
e Resistance measurement Push (yellow) for dc current measurements from 0 μA to 6000 μA. 10 28 II Ex Users Manual Switch Position Any Position J L M N O P Q Table 3. Rotary Switch Positions Function When the Product is turned on, the Product model number briefly shows on the display. AC ...
e Resistance measurement Push (yellow) for dc current measurements from 0 μA to 6000 μA. 10 28 II Ex Users Manual Switch Position Any Position J L M N O P Q Table 3. Rotary Switch Positions Function When the Product is turned on, the Product model number briefly shows on the display. AC ...
Fluke 28IIEx User Manual
Page 22
... duty cycle mode. 12 Cancels MIN MAX (hold H down for 1 second. Toggles the Product to trigger on and off the backlights. Push G for subsequent measurements. 28 II Ex Users Manual Button E H Switch Position Continuity N MIN MAX recording Hz, Duty Cycle Any position F (Relative mode) G Any position Any position Any position except diode test...
... duty cycle mode. 12 Cancels MIN MAX (hold H down for 1 second. Toggles the Product to trigger on and off the backlights. Push G for subsequent measurements. 28 II Ex Users Manual Button E H Switch Position Continuity N MIN MAX recording Hz, Duty Cycle Any position F (Relative mode) G Any position Any position Any position except diode test...
Fluke 28IIEx User Manual
Page 24
... selects the range with the best resolution. A, μA, mA amperes (amps), microamp, milliamp V, mV volts, millivolts μF, nF microfarad, nanofarad nS nanosiemens % Percent. 28 II Ex Users Manual Table 5. Manual Manual range mode HiRes High resolution (Hi Res) mode HiRes=19,999 14 Display Features (cont.) Number Feature Indication Low battery.
... selects the range with the best resolution. A, μA, mA amperes (amps), microamp, milliamp V, mV volts, millivolts μF, nF microfarad, nanofarad nS nanosiemens % Percent. 28 II Ex Users Manual Table 5. Manual Manual range mode HiRes High resolution (Hi Res) mode HiRes=19,999 14 Display Features (cont.) Number Feature Indication Low battery.
Fluke 28IIEx User Manual
Page 26
... the display and enters calibration mode. The Product reads "bEEP" until C is released. The Product reads "Hi2" until H is released. D Turns on the smoothing feature. 28 II Ex Users Manual Power-Up Options To set a power-up option. Button Table 6. E Disables the beeper for a password. The Product reads "LoFF" until G is used. Table 6 shows...
... the display and enters calibration mode. The Product reads "bEEP" until C is released. The Product reads "Hi2" until H is released. D Turns on the smoothing feature. 28 II Ex Users Manual Power-Up Options To set a power-up option. Button Table 6. E Disables the beeper for a password. The Product reads "LoFF" until G is used. Table 6 shows...
Fluke 28IIEx User Manual
Page 28
...The low-pass filter can get you better measurement performance on inverters and variable-frequency motor drives. Record the ac voltage range, then manually select a dc voltage range equal to the measurement less than the ac range. The lower frequency voltages go through a filter that are...below 3 % of 60 mA ac, or 1.8 mA ac • AC current: below 3 % of an ac voltage, measure the ac voltage first. 28 II Ex Users Manual When you measure voltage, the Product puts approximately 10-MΩ (10,000,000 Ω) impedance in the ac functions, the Product shows a measurement between 1 ...
...The low-pass filter can get you better measurement performance on inverters and variable-frequency motor drives. Record the ac voltage range, then manually select a dc voltage range equal to the measurement less than the ac range. The lower frequency voltages go through a filter that are...below 3 % of 60 mA ac, or 1.8 mA ac • AC current: below 3 % of an ac voltage, measure the ac voltage first. 28 II Ex Users Manual When you measure voltage, the Product puts approximately 10-MΩ (10,000,000 Ω) impedance in the ac functions, the Product shows a measurement between 1 ...
Fluke 28IIEx User Manual
Page 30
... sounds when a circuit is complete. Push E to look at the display. The continuity test has a beeper that last as little as shown in Figure 4. 28 II Ex Users Manual Continuity Tests WCaution To prevent damage to the Product or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before...
... sounds when a circuit is complete. Push E to look at the display. The continuity test has a beeper that last as little as shown in Figure 4. 28 II Ex Users Manual Continuity Tests WCaution To prevent damage to the Product or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before...
Fluke 28IIEx User Manual
Page 32
... section for resistance measurements are 600.0 Ω, 6.000 kΩ, 60.00 kΩ, 600.0 kΩ, 6.000 MΩ, and 50.00 MΩ. Refer to measure resistance. 28 II Ex Users Manual Resistance Measurements WCaution To prevent damage to the Product or to the equipment under test, disconnect the power and discharge all paths between the probes...
... section for resistance measurements are 600.0 Ω, 6.000 kΩ, 60.00 kΩ, 600.0 kΩ, 6.000 MΩ, and 50.00 MΩ. Refer to measure resistance. 28 II Ex Users Manual Resistance Measurements WCaution To prevent damage to the Product or to the equipment under test, disconnect the power and discharge all paths between the probes...
Fluke 28IIEx User Manual
Page 34
... how easily current goes through a circuit. then step to the average (AVG) reading. • It is a measure of 100,000 MΩ, 1/1 nS = 1,000 MΩ. 28 II Ex Users Manual How to Use Conductance for resistance measurement as low values of the Product measures conductance in nanosiemens (1 nS = 0.000000001 siemens). High values of components with...
... how easily current goes through a circuit. then step to the average (AVG) reading. • It is a measure of 100,000 MΩ, 1/1 nS = 1,000 MΩ. 28 II Ex Users Manual How to Use Conductance for resistance measurement as low values of the Product measures conductance in nanosiemens (1 nS = 0.000000001 siemens). High values of components with...
Fluke 28IIEx User Manual
Page 36
... on the component's negative terminal. Use the diode test to 0.8 V. A reverse-bias measurement can be different because of the resistance of other semiconductor devices. 28 II Ex Users Manual Diode Tests WCaution To prevent damage to the Product or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before...
... on the component's negative terminal. Use the diode test to 0.8 V. A reverse-bias measurement can be different because of the resistance of other semiconductor devices. 28 II Ex Users Manual Diode Tests WCaution To prevent damage to the Product or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before...
Fluke 28IIEx User Manual
Page 38
... test and put the red lead into the COM terminal. Discharge all measurements. • Do not put the red lead into the A terminal. 28 II Ex Users Manual AC or DC Current Measurements XWWarning To prevent electric shock or personal injury, do not try an in-circuit current measurement where the open the...: • Examine the fuses of the Product before you measure current. • Use the correct terminals, function, and range for 18 hours or less. 28 Note To prevent damage to Figure 8 and continue as follows: 1. You can cause Product damage or personal injury if the fuse blows.
... test and put the red lead into the COM terminal. Discharge all measurements. • Do not put the red lead into the A terminal. 28 II Ex Users Manual AC or DC Current Measurements XWWarning To prevent electric shock or personal injury, do not try an in-circuit current measurement where the open the...: • Examine the fuses of the Product before you measure current. • Use the correct terminals, function, and range for 18 hours or less. 28 Note To prevent damage to Figure 8 and continue as follows: 1. You can cause Product damage or personal injury if the fuse blows.