Cooper Instruments & Systems DFI INFINITY Digital Force Indicator/Controller - Manual (Page 75)

TO CORRECT: Reduce the “CNT BY” count by value to 001. If you have an active decimal point selected, move
the decimal point one or more positions to the right.
UOM.OVF
POSSIBLE CAUSE: Selection of unit of measure displayed (“RDG.6=0”) moves the display reading
one place to the left causing a numerical overflow.
TO CORRECT: If you have an active decimal point, move he decimal point position one or more positions to the
right.
SERIAL
POSSIBLE CAUSE: A configuring change has been attempted via the front panel buttons while the serial
communications port is actively communicating with the meter.
TO CORRECT: Either lockout the front panel buttons by removing the jumpers S3A & S3C or disconnect the serial
communications option.
18.0 SPECIFICATIONS
18.1 Current Input
INPUT RANGES
(+10%): 0-20 mA and 4-20 mA
RESOLUTION: 1µA
MAXIMUM INPUT:
200 mA
INPUT OHMS: 5
SENSOR EXCITATION: 10 V, to 30 mA
24 V, to 25 mA
18.2 Voltage Input
INPUT RANGES:
UNIPOLAR: 100 mV 1 V 10 V 100 V
BIPOLAR: ±50 mV ±0.5 V ±5 V ±50 V
RESOLUTION: 1 µV 10 µV 100 µV 1 mV
MAX INPUT: 70 Vp 350 Vp 350 Vp 300 Vp
BIAS AMPS:
SENSOR EXCITATION:
10 V, to 30 mA
24 V, to 25 mA
18.3 Potentiometer Input
RESOLUTION:
1.5 to 11 Vdc, to 60 mA Max 24 V, to 25 mA Max
18.4 General
SCALE: +0.000001 to +500000 or –0.0001 to –99999.
Zero to +999999
NMR:
INPUT OHMS: 1G 1M 1M 1M
50 pA 5 pA 1 pA 1 pA
INPUT RANGES: 1 V or 10 V
programmed
to 0.001%
SENSOR EXCITATION:
OFFSET:
POLARITY: Automatic
NOISE REJECTION
60 dB, 50 or 60 Hz, + selected filter
CMR: 120 dB
CMV: Dielectric strength to 1500 V transient per 260 VRMS or DC working voltage.
ACCURACY at 25 C:
MAX ERROR: ±0.005% of reading
CF 67 70 M1291/N/0403 11279ML-02 Rev. A