Teledyne Analytical Instruments 3020 M, Operating Instructions Manual

Page: 52 / 107

Paramagnetic Oxygen Analyzer Installation
Teledyne Analytical Instruments
29
The connectors are:
Threshold Alarm 1:

Can be configured as high (actuates when concentration is above
threshold), or low (actuates when concentration is below
threshold).

Can be configured as failsafe or non-failsafe.

Can be configured as latching or non-latching.

Can be configured out (defeated).
Threshold Alarm 2:

Can be configured as high (actuates when concentration is above
threshold), or low (actuates when concentration is below
threshold).

Can be configured as failsafe or non-failsafe.

Can be configured as latching or non-latching.

Can be configured out (defeated).
System Alarm:

Actuates when DC power supplied to circuits is unacceptable in
one or more parameters.

Permanently configured as failsafe and latching. Cannot be
defeated.

Actuates if self test fails.
To reset a System Alarm during installation, disconnect power to
the instrument and then reconnect it.
Further detail can be found in Chapter 4, Section 4-5.
3.3.5 Digital Remote Cal Inputs
Remote Zero and Span Inputs: The REMOTE SPAN and
REMOTE ZERO inputs are on the DIGITAL INPUT terminal block.
They accept 0 V (OFF) or 24
VDC (ON) for remote control of
calibration. (See Remote Calibration Protocol below.)