Cumberland 074-11772, Owner'S Manual

Page: 73 / 102

Appendix D: Safety Characteristics and Certification
• Performance criterion A — During test normal performance within the specification limits
• Performance criterion B — During test, temporary degradation, or loss of function or performance
which is self-recovering
• Performance criterion C — During test, temporary degradation, or loss of function or performance
which requires operator intervention or system reset occurs.
Normal operation (load cell connected) Percentage
Allowable weight variation of EDGE Bin Scale 4 Wires
LC 0.6% error from the EDGE Bin Scale plus combined
errors caused by the load cell model
(typical error percentage: 1,7% to 2,8%)
3,4% max of full scale
Allowable weight variation of EDGE Bin Scale 3 Wires
LC Greater than 3,4% of full scale
Allowable loss of performance in a noisy
environment Percentage
Allowable noise on EXC+ on EDGE Bin Scale 4 wires
Lc 0.7% error from the EDGE Bin Scale plus combined
errors caused by the load cell model
(typical error percentage: 1,7% to 2,9%)
3,5% max of full scale
Allowable weight variation due to noise on SIG+ on
EDGE Bin Scale 3 wires Lc Greater than 3,5% of full scale
EDGE Bin Scale element Normal operation Allowable loss of performance
RS-485 link 1 communication frame loss 3 consecutive communication frames losses
OLED display No visual degradation No visual degradation
Environment characteristics
Parameter Condition Value
Environment Location
Inside and outside
Operating Temperature Operating -40 to 40°C (-40 to 104°F)
Storage -40 to +50°C (-40 to +122°F)
Humidity (Maximum Relative) -40 to 0°C (-40 to 32°F) Non condensing
0 to 10°C (32 to 50°F)
Non condensing
10 to 30 °C (50 to 86 °F) 95 % (± 3%) Non condensing
30 to 40 °C (86 to 104 °F) 95 % (± 3%) Non condensing
Storage Non condensing
Altitude 2000 Meters Max. (6561 Ft. Max)
Electromagnetic Environment EN/IEC61326-1, IEC EN 60730-1, EN
61000-6-4, EN 61000-6-2
Enclosure Protection Nema 250 : type 4x IP : 66, ref : IEC60529
Impact rating (IK) 08
891–00577 EDGE Bin Scale 3 Wires LC 73