Hach 3654 Portable H2/N2 Analyzer manual Analog Voltages View, Measurements View

52 of 66 Maintenance and Troubleshooting - 3654 Portable H2/N2 Analyzer

6.5.5 Analog Voltages View

The Troubleshooting, Analog Voltage View gives a real-time look at voltages used by the system to transmit information about gas, temperature and pressure. This is useful when trying to identify an instrument problem with a Hach Ultra service representative either on-site or over the phone.

When performing this test, if the system is over-range, you may receive a message that states, for example, The current input is saturated.

Similar messages will also appear, to warn when temperature and pressure limits are exceeded.

The voltage limits for normal operation are:

•Gas channel: between +0.1 V and +4 V, depending on the gas being measured

•Temperature channel: +10 mV to +4 V

•Pressure channel: -100 mV to +100 mV

The POINT window on the right side of the gas channel voltage, is a parameter useful for troubleshooting by Hach Ultra support technicians. It cannot be set or updated locally.

6.5.6 Measurements View

The Troubleshooting, Measurements View confirms, on your PC monitor, what your analyzer should be displaying on the LCD for gas concentration and sample temperature.

Choose Cancel to exit from this display.

ORBISPHERE Operator Manual