Cooper Instruments & Systems DFI INFINITY B Ultra High Performance Digital Force Indicator - Manual (Page 79)

broken or otherwise opened. Check thermocouple or RTD wiring.
“I OVSC”
POSSIBLE CAUSE:
TO CORRECT:
The input scale and/or offset values chosen are large enough to drive the display into
numerical overflow.
Reduce the input and/or the input scaling/offset. Refer to “IN.SC.OF” in Section 16.4.
“R OVSC”
POSSIBLE CAUSE:
TO CORRECT:
The reading scale and/or offset values chosen are large enough to drive the display into
numerical overflow.
Reduce the reading scale/offset and/or move the active decimal point to the right. Reducing
input scale/offset is not required, because the input overscale message has higher priority than
this message and would be displayed if there were an input overscale.
“CB OVF”
POSSIBLE CAUSE:
TO CORRECT:
CNT BY (count by value) has been changed causing the display to round up to a numerical
overflow.
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.
“SERIAL”
POSSIBLE CAUSE:
TO CORRECT:
A configuring change has been attempted via the front panel buttons while the serial
communications port is actively communicating with the meter.
Either disconnect the serial cable, or press ‘MENU’ for configuration of the meter.
33.1 Current Input
INPUT RANGES (+10%): 0-20 mA and 4-20 mA
RESOLUTION: 1 μA
MAXIMUM INPUT: 200 mA
INPUT OHMS: 5
33.2 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
INPUT OHMS: 1G 1M 1M 1M
BIAS AMPS: 50 pA 5 pA 1 pA 1 pA
33.3 Potentiometer Input
INPUT RANGES: 1 V or 10 V
RESOLUTION: programmed to 0.001%
33.4 Thermocouple Input
TC Type Degrees, Temperature : Accuracy
Celsius Fahrenheit Kelvin
J -210 to 760 : 0.2 -346 to 1400 : 0.3 +63.2 to 1673.2 :0.2
K -250 to 1250 : 0.2* -418 to 2282 : 0.3* +23 to 977.2 : 0.2*
E -270 to 1000 : 0.2 -454 to 1832 : 0.3 +3.2 to 1273.2 : 0.2
T -270 to 400 : 0.2 -454 to 752 : 0.3 +3.2 to 673.2 : 0.2
N -270 to 1300 : 0.2 -454 to 2372 : 0.3 +3.2 to 1573.2 : 0.2
R -50 to 1768 : 0.2 -58 to 3214 : 0.3 +223.2 to 2041.2 : 0.2
S -50 to 1768 : 0.2 -58 to 3214 : 0.3 +223.2 to 2041.2 : 0.2
B +100 to 1820 : 0.3 +212 to 3300 : 0.3 +373.2 to 2093.2 : 0.3
DINJ -200 to 900 : 0.6 -328 to 1652 : 1.0 +73.2 to 1173.2 : 0.6
* for K type: temperatures over 1250 deg C, accuracy will be 0.4C / 0.8F / 0.4K
CF 156 74 M2544/N/0505