PRESYS
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Instruments
DMY-2011, DMY-2035 and DMY-2036
Maintenance
Page 41
When using a resistance decade, make sure the three connection wires must
have the same gauge, material and length.
There is no procedure for a 2-wire RTD calibration. It is accomplished together
with the 3-wire RTD calibration.
Reference
Mnemonic
100.000
Ω
C.100r
300.000
Ω
C.300r
Table 10 - Resistance references for 3-wire RTD input calibration
Output Calibration
For the output calibration, follow this procedure for retransmitter
outputs 1 and 2.
The retransmitter output can be calibrated by using the Indicator input.
The output 1 is calibrated by input 1 and the output 2 is calibrated by input 2.
The hardware configuration for the input must be the same chosen for the
output (0 to 5V, 0 to 10V or 0 to 20mA) since the Indicator will measure the output
signal. Therefore, check if the configurations of internal jumpers from the optional
output module and from the CPU board correspond to the same input and output
types.
Make sure that the input type was calibrated previously.
Make the connections listed in table 11 according to the output and output
type to be calibrated.
Output Type
Output 1 and Input 1
Output 2 and Input 2
current (0 to 20mA)
voltage (0 to 10V)
terminal 13 (+) and 1 (+)
terminal 14 (-) and 3 (-)
terminal 15 (+) and 4 (+)
terminal 16 (-) and 6 (-)
voltage (0 to 5V)
terminal 13 (+) and 2 (+)
terminal 14 (-) and 3 (-)
terminal 15 (+) and 5 (+)
terminal 16 (-) and 6 (-)
Table 11 - I/O Terminal Connections for Output Calibration
Enter level 6 of Calibration and select the output to be calibrated. Choose the
type of output (0 to 20mA, 0 to 5V or 0 to 10V) and press ENTER.
The display will show the mnemonic related to the first point of calibration.
There are only two points for output calibration.
For current output, the mnemonics are related to 0 and 20mA electric signals.
For voltage output, the mnemonics are related to 0 and 5V or 0 and 10V signals.
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