Minebea CSA-507C, Instruction Manual

Page: 34 / 50

22
7. Option
7 − 1. Current output
(Parts No.CSA507C − P07)
(1) Output Output
：
DC4 mA
〜
20 mA
Standard
：
DC4 mA
〜
20 mA with the output voltage at DC0 V
〜
10V
(2) Load resistance
：
500
Ω
or less
(3) Non − linearity
：
0.05 %F.S.
7 − 2. Auto zero
(Parts No.CSA507C − P99)
(1) Auto zero operation range
：
Within
±
10 V
(2) Auto zero required time
：
Within approx. 1 s
(3) Accuracy of auto zero
：
Within
±
5 mV
(4) Temperature coefficient
：
Zero point Within
±
0.005 %F.S./
℃
Sensitivity Within
±
0.005 %F.S./
℃
(5) Backup time of battery
：
Approx. 5 years in the room temperature
(Lithium battery is used.)
7 − 2 − 1. Equivalent circuit of input section
1 k
Ω
A/Z ON, A/Z OFF
A/Z COM
Approx.12 V
7 − 2 − 2. Function
(1) Auto zero ON
：
Auto zero(tare weight cancellation) function will apply when short between A/Z ON and A/Z
COM in the terminals No.2 is made for approx. 10 ms or more, so that voltage output value or
current output value will become zero. The voltage output value or the current output value
will become the output value at net weight portion.
(2) Auto zero OFF
：
Auto zero clear(tare weight cancellation clear) will work while short between A/Z OFF and A/Z
COM in the terminals No.2 is made. The voltage output value or the current output value will
become the output value at gross weight portion.