GE Sievers 900 Series - Calibrating Analog Output Values

GE Analytical Instruments ©2009 106 of 236 DLM 90488-01 Rev. A
2. Press the Analog Out button.
• Press the Min button to set the minimum value (in ppb), corresponding to the minimum
analog voltage. Enter a number and press the Enter button to save the value, or press
Cancel to retain the current setting without making any changes.
• Press the Max button to set the maximum value (in ppb), corresponding to the
maximum analog voltage. Enter a number and press the Enter button to save the
value, or press Cancel to retain the current setting without making any changes.
• Press the Error button to set a value when the Analyzer issues an error (1, 2.5, 4, or 20
mA, or No Change).
• Press the Standby button to set a value when the Analyzer switches out of analysis
mode into standby mode (1, 2.5, 4, or 20 mA, or No Change).
• Press the Value button to set the output value that will be sent to the analog output.
The values can be TOC, TC, or IC. Press the TOC, TC, or IC button and then press Enter
to change the value, or press Cancel to retain the current setting without making any
changes.
• Press the Protocol button to set the analog output behavior when the Analyzer is
running system protocols. Press either the Analysis Results or Standby button.
• To calibrate the values output via the 4-20 mA outputs, see “Calibrating Analog Output
Values” below.
Calibrating Analog Output Values
Calibrate the 4-20 mA output values by following these steps:
1. Open the Analyzer door (900 On-Line) or access the terminal block on the back of the
Analyzer (900 Portable) and connect wiring from the 4-20 mA outputs on TB 3 to a digital
multimeter.
2. Select the I/O tab.
3. Press the Analog Out button.
4. Press the Calibrate button.
5. Press the Adjust button for the 4 mA voltage.
6. Press the Increase or Decrease button to change the value. Note that you can change the
rate at which the Analyzer applies the adjustment by changing the selection under the
Rate button.