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47DT OPERATING MANUAL EM-9508-B Rev.7
31. RETAINING MEASUREMENT STATUS
With the I/O option code ‘5’, ‘6’, ‘9’ or ‘A’, the present value, MAX/MIN values, DC/alarm/BCD outputs can be held while the
HOLD signal is ON.
When the HOLD signal is OFF, each value and output corresponds to the input.
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OPERATING PROCEDURE TO RETAIN MEASUREMENT STATUS
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RETAINING MEASUREMENT STATUS
NOTE
• While the HOLD signal is ON, other signals except the RESET signal are invalid.
• The ‘S.ERR’ or ‘B.ERR’ indication or no measured data is held with the HOLD signal ON.
Present value
Retained
‘Hld’ indicator OFF
‘Hld’ indicator ON
HOLD signal
ON
*
1 Display depends on the settings and input.
Display value
Measured value
H alarm setpoint
L alarm setpoint
HOLD signal
H alarm output (hi)
L alarm output (lo)
