Measurement Computing PML 1000 Operating Instructions Manual page 14

PML 1000 Operating Instructions
CONFIGURING STATUS INPUTS
The PML 1000 provides two status (logic) inputs, which can be assigned to perform one or more functions when
activated. With the exception of the Calibration function, which is started when there is a transition from inactive
to active state on the input, all other functions will be active only while the status input is active. The status
inputs are active low i.e. placing a short circuit across the input (from a switch or relay contact) will activate the
input. The following functions may be assigned to the status inputs 1 and 2:
Status 1
The default is OFF.
Displays [diSP]
Allows anyone of the following to be displayed while the status input is active: Lamp test, the average, low or
high values, or display hold. When the status input is inactive the normal measured value is displayed. The
default for this is NONE.
Reset [rSEt]
This resets the High (peak), Low (minimum) and Average values to the current measured value. The default for
this option is OFF.
Front Panel Keypad Disable [LoCR]
Disables the front panel keys, the default state is OFF.
Analog Output Hold [AHLd]
This allows the analog output to be held at a (Frozen) level. The default state is OFF.
Auto Fast Calibration [CAL]
This is used to initiate the automatic calibration process. The process is started when the status input is
activated. The default for this option is OFF.
Zeroing [2ErO]
This sets the measured and displayed values to Zero (0.000) permanently (or until the PML 1000 is defaulted),
removing any offset errors from the system. The default for this option is OFF.
Tare [tArE]
This tares the measured value subtracting a fixed amount from all subsequent measurements. The value
subtracted is the current value when the status input is activated (on a transition to the active state only), tare or
relative displacement will be displayed while the status input is active. The default is OFF.
Status Message Display [SdSP]
This enables or disables the display of messages related to the status input function. When ON messages are
displayed alternately with value being displayed i.e. if the unit is displaying the high value, then the high value is
displayed flashing with the message 'HiGH'. This indicates to the user that the current input value was not being
displayed. The default is OFF.
Status 2
Configured the same as Status 1.
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