Martel Electronics 3001 - Manual (Page 17)

Item Description
1 Selected range and input mode:·
• 10V RANGE or 100V RANGE for DC voltage·
• 50mA RANGE for basic DC current·
• 24mA LPWR for loop powered 2 wire transmitter·
• 24mA LPWR HART for loop powered 2 wire transmitter with 250 ohm resistor in circuit
2 Input value
3 Units
2.7 Error Messages
The following error messages may appear on either display.
Table 1 - Error Messages
Message Description
OVER RANGE The value entered on the numeric keypad exceeds the range of the output
mode selected.
OVER LOAD For DC voltage output mode, the current required to generate the output
exceeds the 3001 specifications.For DC current mode, the resistance of the
circuit exceeds the 3001 specifications.
OL For input modes, the measured value exceeds the upper limit of the selected
input mode range.For output modes, when the range is locked, the present
automatically recalled preset setpoint exceeds the upper limit of the locked
range. The output is set to zero for the duration of this setpoint.
-OL For input modes, the measured value exceeds the lower limit of the selected
input mode range.
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