Teledyne 6020 - Photometric analyzer - Manual (Page 14)

1-6: Part I
1 Introduction Model 6020
Teledyne Analytical Instruments
Alphanumeric Interface Screen: The backlit VFD screen is an easy-
to-use interface between operator and analyzer. It displays values, options,
and messages for immediate feedback to the operator.
1.5 Control Unit Interface Panel
The Control Unit interface panel, shown in Figure 1-2, contains the
electrical terminal blocks for external inputs and outputs. The input/output
functions are described briefly here and in detail in the Installation chapter of
this manual.
• Power Connection AC power source, 115VAC, 50/60 Hz
• Analog Outputs 0-1 V dc concentration and 0-1 V dc
range ID. Isolated 4-20 mA dc and 4-20
mA dc range ID.
• Alarm Connections 2 concentration alarms and 1 system
alarm.
• RS-232 Port Serial digital concentration signal output
and control input.
• Remote Bench Provides all electrical interconnect to the
Analysis Unit.
Remote Span/Zero Digital inputs allow external control of
analyzer calibration.
• Calibration Contact To notify external equipment that
instrument is being calibrated and
readings are not monitoring sample.
• Range ID Contacts Three separate, dedicated, range relay
contacts.
• Network I/O Serial digital communications for local
network access. For future expansion.
Not implemented at this printing.
Note: If you require highly accurate Auto-Cal timing, use external
Auto-Cal control where possible. The internal clock in the
Model 6020 is accurate to 2-3 %. Accordingly, internally sched-
uled calibrations can vary 2-3 % per day.