Extech Instruments EX810, Руководство пользователя

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EX800 Series Version 3.1 6/05 6
Accuracy
(% of r digits)
Function
Range and
Resolution
EX810 EX820 EX830
-4 to 1400
o
F NA ± (3%rdg + 9
o
F) ± (3%rdg + 9
o
F)
Temperature
(type-K)
-20 to 760
o
C NA ± (3%rdg + 5
o
C) ± (3%rdg + 5
o
C)
-58 to -4
°
F
±
9
°
F
±
9
°
F
±
9
°
F
-4 to 518
°
F
±
2.0% reading or
±
4
°
F
whichever is >
±
2.0% reading or
±
4
°
F
whichever is >
±
2.0% reading or
±
4
°
F
whichever is >
-50 to -20
°
C
±
5
°
C
±
5
°
C
±
5
°
C
Temp
(IR)
-20 to 270
°
C
±
2.0% reading or
±
2
°
C
whichever is >
±
2.0% reading or
±
2
°
C
whichever is >
±
2.0% reading or
±
2
°
C
whichever is >
General Specifications
Clamp jaw opening 1.7" (43mm) approx.
Display 3-3/4 digits (4000 counts) backlit LCD
Continuity check Threshold 40
Ω
; 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
PEAK Captures peaks >1ms
Thermocouple sensor Type K thermocouple required
IR Spectral response 6 to 16µm
IR Emissivity 0.95 fixed
IR distance ratio 8:1
Input Impedance 10M
Ω
(VDC and VAC)
AC bandwidth 50 to 400Hz (AAC and VAC)
AC response True rms (AAC and VAC) on EX820 & EX830
Crest Factor 3.0 in 40A and 400A ranges, 1.4 in 1000A range (50/60Hz
and 5% to 100% of range)
Operating Temperature 41
°
F to 104
°
F (5
°
C to 40
°
C)
Storage Temperature -4
°
F to 140
°
F (-20
°
C to 60
°
C)
Operating Humidity Max 80% up to 87
°
F (31
°
C) decreasing linearly to 50% at
104
°
F(40
°
C)
Storage Humidity <80%
Operating Altitude 7000ft. (2000meters) maximum.
Battery One (1) 9V Battery (NEDA 1604)
Auto power OFF After approx. 25 minutes
Dimensions & Weight 10.6x4.3x2” (270x110x50mm); 13.6 oz. (386g)
Safety 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.