Precision Digital PD663 - Manual (Page 8)

PD663 Loop-Powered Meter Instruction Manual
8
Input
ACCURACY ±1 count
FUNCTION Linear (2 to 32 points) or square root
TEMPERATURE
DRIFT 50 PPM/ C from -40 to 75C ambient
DECIMAL POINT User selectable decimal point
MINIMUM SPAN Input 1 & Input 2: 0.40 mA
CALIBRATION
RANGE An Error message will appear if input 1 and input 2 signals
are too close together.
Input
Range
Minimum Span
Input 1 & Input 2
4-20 mA 0.40 mA
MAXIMUM
VOLTAGE DROP Without Backlight With Backlight
1.7 VDC @ 20 mA 4.7 VDC @ 20 mA
EQUIVALENT
RESISTANCE 85 Ω @ 20 mA 185 Ω @ 20 mA
LOOP-POWERED
BACKLIGHT
OPTION
Factory installed only. Powered directly from the 4-20 mA
loop, no batteries required. Backlight can be enabled or
disabled via alternative wiring of terminal block. The
display brightness will increase as the input signal current
increases.
INPUT
OVERLOAD Over current protection to 2 A max.