Extech EX810 Bedienungsanleitung Seite 11

Range and
Function Resolution
-4 to 14000F
Temperature
(type-K)
-20 to 7600C
Temp -58 to -40F
±2.0% reading or ± 40F
-4 to 5180F
-50 to -200C
±2.0% reading or ±20C
-20 to 2700C
General Specifications
Clamp jaw opening I .7" (43mm) approx.
3-3/4 digits (4000 counts) backlit LCD
Display
Continuity check Threshold 40Q; Test current < 0.5mA
Diode test Test current of 0.3mA typical;
Open circuit voltage < 3VDC typical
Low Battery indication Battery symbol is displayed
Over-range indication 'OL' display
Measurement rate 2 readings per second, nominal
Captures peaks >1 ms
PEAK
Type K thermocouple required
Thermocouple sensor
IR Spectral response 6 to 16pm
IR Emissivity
0.95 fixed
IR distance ratio
Input Impedance IOMQ (VDC and VAC)
AC bandwidth 50 to 400Hz (AAC and VAC)
True rms (AAC and VAC) on EX830
AC response
Crest Factor 3.0 in 40A and 400A ranges, I .4 in I OOOArange (50/60Hz
and 5% to 100% of range)
Operating Temperature 50C to 400C (41OFto 1040F)
-200C to 600C (-40F to 1400F)
Storage Temperature
Operating Humidity Max 80% up to 310C (870F) decreasing linearly to 50% at
400C (1040F)
Storage Humidity
Operating Altitude 2000meters
Battery One (1) 9V Battery (NEDA 1604)
Auto power OFF After approx. 25 minutes
Ox50mm (10.6x4.3x2"); 386g (13.6 oz)
Dimensions & Weight
For indoor use and in accordance
double insulation to IECIOIO-I
Overvoltage Category III 600V and Category II IOOOV,
Pollution Degree 2.
Accuracy
(% of reading + digits)
EX810 EX830
± (3%rdg + 90F)
NA
± (3%rdg + 50C)
±2.0% reading or ± 40F
whichever is > whichever is >
±50C ±50C
±2.0% reading or ±20C
whichever is >
whichever is >
(7000ft) maximum.
with the requirements for
(2001): EN61010-1 (2001)
EX810-830-EU_ENG V3.o
6
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/DC Current Measurements (DC Current on Model EX830 only)
WARNING: Ensure that the test leads are disconnected from the meter before making
current clamp measurements.
Set the Function
I.
or ADC range
2. Press the trigger to open jaw.
Fully enclose only one conductor.
For optimum results, center the
conductor in the jaw.
The clamp meter LCD will display
3.
the reading.
DCA ZERO (EX830 only)
The DC Zero feature
values and improves accuracy for DC
current measurements. To perform a
zero, select ADC and with no
conductor in the jaw:
Press the DC ZERO
1.
zero the display. "ZERO" will appear in the display. The offset value is now stored and
removed from all measurements.
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.
ACIDC Voltage Measurements
I. 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 VAC or VDC position.
Use the MODE button to select AC or DC Voltage (EX830 only).
3.
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display.
4/05
switch to the AAC
removes offset
Correct
button to
7 EX810-830-EU_ENG V3.0
Incorrect
4/05