User`s guide

EX450-EU_ENG V3.1 10/07
13
Function Range Resolution Accuracy
Resistance
200 0.1 (0.8% reading + 4 digits)
2k 0.001k (0.8% reading + 2 digits)
20k 0.01k
(1.0% reading + 2 digits)200k 0.1k
2M 0.001M
20M 0.01M (3.0% reading + 5 digits)
Temp
(IR)
-58 to 518F 1F
2.0% reading or 2C,  4 F
-50 to270C 1C
NOTE: Accuracy specifications consist of two elements:
 (% reading) – This is the accuracy of the measurement circuit.
 (+ digits) – This is the accuracy of the analog to digital converter.
Diode Test Test current of 0.3mA maximum, open circuit voltage 1.5V DC
typical
Continuity Check Audible signal will sound if the resistance is less than 150
(approx.), test current <0.7mA
IR Spectral response 6 to 16µm
IR Emissivity 0.95 fixed
IR distance ratio 8:1
Input Impedance >7.5MΩ (VDC & VAC)
AC Response Average responding
ACV Bandwidth 50Hz to 1kHz
Display 2000 count backlit liquid crystal
Overrange indication “OL” is displayed
Auto Power Off 15 minutes (approximately)
Polarity Automatic (no indication for positive); Minus (-) sign for
negative
Measurement Rate 2 times per second, nominal
Low Battery Indication “ ” is displayed if battery voltage drops below operating
voltage
Patent notice U.S. Patent 7056012