MRC EX830 צבת זרם AC/DC כולל מד טמפרטורה ללא מגע Operating instructions
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User's Guide
Extech EX830 True RMS 1000 Amp
Clamp Meter with IR Thermometer
Introduction
Congratulations on your purchase of the Extech EX830 True RMS 1000A Clamp Meter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode Test,
Continuity, Type k thermocouple thermometer plus Non-Contact IR Temperature. Proper use and care of this meter will provide many years of reliable service.
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the user must refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages may be present
Double insulation
SAFETY NOTES
Do not exceed the maximum allowable input range of any function.
Do not apply voltage to meter when resistance function is selected.
Set the function switch OFF when the meter is not in use.
Remove the battery if meter is to be stored for longer than 60 days.
WARNINGS
Set function switch to the appropriate position before measuring.
When measuring volts do not switch to current/resistance modes.
Do not measure current on a circuit whose voltage exceeds 600V.
When changing ranges always disconnect the test leads from the circuit under test.
A AC, ADC
V DC, V AC
1000A DC/AC
600V DC/AC
Resistance, Capacitance, Frequency, Diode Test 250V DC/AC
Type K Temperature 60V DC, 24V AC
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CAUTIONS
Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter.
Always remove the test leads before replacing the battery or fuses.
Inspect the condition of the test leads and the meter itself for any damage before operating the meter. Repair or replace any damage before use.
Use great care when making measurements if the voltages are greater than 25VAC rms or
35VDC. These voltages are considered a shock hazard.
Always discharge capacitors and remove power from the device under test before performing
Diode, Resistance or Continuity tests.
Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty of connection to the recessed electrical contacts. Other means should be used to ensure that the terminals are not "live".
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
This device is not a toy and must not reach children’s hands. It contains hazardous objects as well as small parts that the children could swallow. In case a child swallows any of them, please contact a physician immediately
Do not leave batteries and packing material lying around unattended; they can be dangerous for children if they use them as toys
In case the device is going to be unused for an extended period of time, remove the batteries to prevent them from training
Expired or damaged batteries can cause cauterization on contact with the skin. Always, therefore, use suitable hand gloves in such cases
See that the batteries are not short-circuited. Do not throw batteries into the fire.
Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of time
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Description
Meter Description
2. Clamp opening trigger
3. Data Hold Button
4. Mode
5. Peak
6. Range
7. DCA Zero (EX830 only)
8. MIN/MAX
9. Backlit LCD Display
10. Test lead input jacks
11. IR thermometer and laser pointer (rear)
13. Laser pointer button
Display icons Description
Minus sign Negative reading display
0 to 3999 Measurement display digits
ZERO Zero
AUTO
DC/AC
Current
Auto Range mode
Direct Current / Alternating mV or V Milli-volts or Volts (Voltage) o
F and o
C Fahrenheit and Celsius units (Temperature) n, m,
, M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo
)
) test
Diode test
Laser pointer
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Operation
NOTES: Read and understand all Warning and Caution statements in this operation manual prior to using this meter. Set the function select switch to the OFF position when the meter is not in use.
AC Current Measurements
WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements.
1. Set the Function switch to the A
AC
or A
DC
range
2. Press the trigger to open the jaw. Fully enclose only one conductor. For optimum results, center the conductor in the jaw.
3. The clamp meter LCD will display the reading.
DCA ZERO
The DC Zero feature removes offset values and improves accuracy for DC current measurements. To perform a zero, select ADC and with no conductor in the jaw: zero the display. “ZERO” will appear in the display. The offset value is now stored and removed from all measurements.
Correct
Incorrect
2. To view the stored value, press the DC ZERO button. “ZERO” will flash and the stored value will be displayed.
3. To exit this mode, press and Hold the ZERO button until “ZERO” is no longer in the display.
AC/DC Voltage Measurements
1. Insert the black test lead into the negative COM terminal and the red test lead into the positive V terminal.
2. Set the function switch to the V
AC
or V
DC
position.
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display.
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Resistance Measurements
Note: Remove power before making resistance measurements
1. Insert the black test lead into the negative COM terminal and the red test lead into the
positive terminal.
2. Set the function switch to the
position.
3. Touch the test probe tips across the circuit or component under test.
4. Read the resistance on the LCD display.
Capacitance Measurements
WARNING: To avoid electric shock, discharge the capacitor under test before measuring. If “dISC” appears in the display, remove and discharge the capacitor.
1. Set the function switch to the
capacitance position.
2. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the CAP positive jack.
3. Press MODE to zero any stray capacitance.
4. Touch the test probe tips across the part under test.
5. Read the capacitance value in the display.
6. The display will indicate the proper decimal point and value.
Note: For very large values of capacitance measurement time can be several minutes before the final reading stabilizes.
Frequency Measurements
1. Set the function switch to the V Hz Position.
2. Press and hold the MODE button to select the Frequency (Hz) function. “k Hz” will appear in the display.
3. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the Hz positive jack.
4. Touch the test probe tips across the part under test.
5. Read the Frequency value on the display.
6. The display will indicate the proper decimal point and value.
7. Press and hold the MODE button again to return to the voltage mode
6
Ù
CAP
Hz
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Type K Temperature Measurements
1. Set the function switch to the K Temp position.
2. Insert the Temperature Probe into the negative COM and the positive TEMP jacks, observing polarity.
3. Touch the Temperature Probe tip to the device under test. Continue to touch the part under test with the probe until the reading stabilizes.
4. Read the temperature on the display. The digital reading will indicate the proper decimal point and value.
WARNING: To avoid electric shock, be sure the thermocouple probe has been removed before changing to another measurement function.
Note: An open input or a temperature overrange the meter will display “OL” and beep.
Note: See the “Temperature Units” paragraph to select
°F or °C
Note: The temperature range of the supplied thermocouple probe is -20 to 250°C
(-4 to 482°F)
Continuity Measurements
1. Insert the black test lead into the negative COM terminal and the red test lead into the
positive terminal.
2. Set the function switch to the
)
)
)
position. the
)
)
)
. The display icons will change when the MODE button is pressed.
4. Touch the test probe tips across the circuit or component under test.
5. If the resistance is < 40
, a tone will sound.
Diode Test
1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive jack
2. Turn the function switch to position. Use the MODE button to select the diode function if necessary (diode symbol will appear on the LCD when in Diode test mode)
3. Touch the test probe tips to the diode or semiconductor junction under test. Note the meter reading
4. Reverse the test lead polarity by reversing the red and black leads. Note this reading
5. The diode or junction can be evaluated as follows:
If one reading displays a value (typically 0.400V to 0.900V) and the other reading displays
OL, the diode is good.
If both readings display OL the device is open.
If both readings are very small or ‘0’, the device is shorted.
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Non-Contact InfraRed Temperature Measurements
1. Set the function switch to the IR Temp position.
2. Aim the infrared sensor (rear of the meter) at the surface to be measured.
3. Press the button in the center of the rotary function switch to turn on the laser pointer and identify the surface spot to be measured.
4. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size specification.
5. Read the temperature in the display.
Note: See the “Temperature Units” paragraph to select o
F or o
C
WARNING: Do not directly view or direct the laser pointer at an eye.
Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of time.
IR Spot to Distance Diagram
The 8:1 spot to distance ratio determines the size of the measured surface area with respect to the distance the meter is held away from the surface.
Diameter of spot
7.5cm
1.25cm
2.5cm
10cm
20cm
60cm
Distance to object
IR Measurement Notes
1. The object under test should be larger than the spot (target) size calculated by the field of view diagram.
2. If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements.
3. If an object's surface is highly reflective, apply masking tape or flat black paint to the surface before measuring.
4. The meter may not make accurate measurements through transparent surfaces such as glass.
5. Steam, dust, smoke, etc. can obscure measurements.
6. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and down motion) until the hot spot is located.
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Data Hold
To freeze the LCD reading, press the HOLD button. While data hold is active, the HOLD icon appears on the LCD. Press the HOLD button again to return to normal operation.
Peak Hold
The Peak Hold function captures the peak AC or DC voltage or current. The meter can capture negative or positive peaks as fast as 1 millisecond in duration.
1. Turn the function switch to the A or V position.
3. Allow time for the display to stabilize.
4. Press and Hold the PEAK button until “CAL” appears in the display. This procedure will zero the range selected.
6. The display will update each time a higher positive peak occurs. lowest negative peak.
8. To return to normal operation, press and hold the PEAK button until the Pmin or Pmax indicator switches off.
Note: If the Function switch position is changed after a calibration the Peak Hold calibration must be repeated for the new function selected.
MAX/MIN
appear. The meter will display and hold the maximum reading and will update only when a new
“max” occurs. will display and hold the minimum reading and will update only when a new “min” occurs present reading, but will continue to update and store the max and min readings.
4. To exit MAX/MIN mode press and hold the MAX/MIN key for 2 seconds.
Temperature Units (˚F / ˚C)
The temperature units selection switch is located in the battery compartment. To change the units, remove the battery door, lift out the battery and set the switch for the desired units.
Units Switch
F C
LCD Backlight Button
The LCD is equipped with backlighting for easier viewing, especially in dimly lit areas. Press the backlight button to turn the backlight on. Press again to turn the backlight off.
Automatic Power OFF
In order to conserve battery life, the meter will automatically turn off after approximately 25 minutes.
To turn the meter on again, turn the function switch to the OFF position and then to the desired function position.
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Maintenance
WARNING: To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input terminals, and turn OFF the meter before opening the case. Do not operate the meter with an open case.
Cleaning and Storage
Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. If the meter is not to be used for 60 days or more, remove the battery and store it separately.
Battery Replacement
1. Remove the Phillips head screw that secures the rear battery door
2. Open the battery compartment
3. Replace the 9V battery
4. Secure the battery compartment
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end-oflife devices to a designated collection point for the disposal of electrical and electronic equipment.
Other Battery Safety Reminders
o Never dispose of batteries in a fire. Batteries may explode or leak.
Never mix battery types. Always install new batteries of the same type
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Specifications
Function
AC Current
50/60 Hz
DC Current
AC Voltage
50/60Hz
DC Voltage
Resistance
Capacitance
Frequency
Range & Resolution
400.0 AAC
1000 AAC
Accuracy (% of reading + digits)
± (2.5% + 8d)
± (2.8% + 5d)
400.0 ADC
1000 ADC
400.0 mVAC
4.000 VAC
40.00 VAC
400.0 VAC
600 VAC
400.0 mVDC
4.000 VDC
40.00 VDC
400.0 VDC
600 VDC
400.0
4.000k
40.000k
400.0k
4.000M
40.00M
4.000nF
40.00nF
400.0nF
4.000µF
40.00µF
400.0µF
4.000mF
± (2.5% + 5d)
± (2.8% + 5d)
± (1.0% + 10d)
± (1.5% + 5d)
± (2.0% + 5d)
± (0.8% + 2d)
± (1.5% + 2d)
± (2.0% + 2d)
± (1.0% + 4d)
± (1.5% + 2d)
± (2.5% + 3d)
± (3.5% + 5d)
± (5.0% + 30d)
± (5.0% + 20d)
± (3.0% + 5d)
± (4.0% + 10d)
± (10% + 10d)
40.00mF unspecified
4.000kHz
± (1.5% + 2d)
Sensitivity: 100V (<50Hz); 50V (50 to 400Hz); 5V (401Hz to 4000Hz)
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Function
Temperature
(type-K)
Temp
(IR)
Clamp jaw opening
Display
Continuity check
Diode test
Low Battery indication
Range and Resolution
-4 to 1400 o
F
-20 to 760 o
-58 to -4
-4 to 518
C
F
F
Accuracy (% of reading + digits)
± (3%rdg + 9 o
F)
± (3%rdg + 5 o
C)
9 F
2.0% reading or
4F whichever is >
-50 to -20
C 5C
-20 to 270
C
2.0% reading or 2C whichever is >
43mm (1.7") approx.
3-3/4 digits (4000 counts) backlit LCD
Threshold 40
; Test current < 0.5mA
Test current of 0.3mA typical;
Open circuit voltage < 3VDC typical
Battery symbol is displayed
Measurement rate
PEAK
Thermocouple sensor
IR Spectral response
IR Emissivity
IR distance ratio
Input Impedance
AC bandwidth
2 readings per second, nominal
Captures peaks >1ms
Type K thermocouple required
6 to 16µm
0.95 fixed
8:1
10M
(VDC and VAC)
50 to 400Hz (AAC and VAC)
AC response
Crest Factor
True rms (AAC and VAC)
3.0 in 40A and 400A ranges, 1.4 in 1000A range (50/60Hz and 5% to
100% of range)
Operating Temperature 5
C to 40C (41F to 104F)
Storage Temperature -20
C to 60C (-4F to 140F)
Operating Humidity
Max 80% up to 31
C( 87F) decreasing linearly to 50% at 40C
(104
F)
Storage Humidity
<80%
Operating Altitude
Battery
Auto power OFF
Dimensions & Weight
Safety
Patent notice
2000meters (7000ft) maximum.
One (1) 9V Battery (NEDA 1604)
After approx. 25 minutes
270x110x50mm (10.6x4.3x2”); 386g (13.6 oz)
For indoor use and in accordance with the requirements for double insulation to IEC1010-1 (2001): EN61010-1 (2001) Overvoltage
Category III 600V and Category II 1000V, Pollution Degree 2.
U.S. Patent 7163336
Copyright © 2013‐2015 FLIR Systems, Inc.
All rights reserved including the right of reproduction in whole or in part in any form
ISO‐9001 Certified
www.extech.com
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