Table of Contents
Advertisement
PRESYS
|
Instruments
Calibration of voltage input (0 to 10V)
In order to calibrate the voltage input at 0 to 10V connect an accurate DC
voltage source to channel 2 (terminals 4(+) and 6(-)). It is required 2 voltage
references listed in table 7.
Calibration of current input (0 to 20mA)
In order to calibrate the current input at 0 to 20mA connect an accurate DC
current source to channel 2 (terminals 4(+) and 6(-)). It is required 2 current
references listed in table 8.
Calibration of thermocouple input
The calibration of a thermocouple input is carried out in two steps. Firstly, 0 to
5V calibrate the 0 to 55mV input and the 0 to 5V input both from channel 2 (terminals
5(+) and 6(-)) as detailed in tables 5 and 6. Upon calibration completion in mV and V,
access the mnemonic CJC within the option ENTR in calibration level 8 (see
figure 37).
CJC - is the mnemonic relative to the temperature of the Controller cold
junction.
DCY - 2057 Pressure Controller
Reference
0.0000V
5.000V
Table 6 - Required voltages for the calibration
of voltage inputs from 0 to 5V
Reference
0.0000V
10.0000V
Table 7 - Required voltages for the calibration
of voltage inputs from 0 to 10V
Reference
0.000 mA
20.000 mA
Table 8 - Required current for the calibration
of current inputs from 0 to 20mA
Mnemonic
C. 0V
C. 5V
Mnemonic
C. 0V
C.10V
Mnemonic
C. 0nA
C.20nA
Maintenance
Page 61
Advertisement
Table of Contents
