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1 Introduction Model 3350
Teledyne Analytical Instruments
• Two factory preset alarms, form C relay contacts, configured as Failsafe
or Non-Failsafe.
• Sensor failure alarm, form C relay contact, configured as Failsafe or
Non-Failsafe.
• Three analog outputs: two for measurement (0–10 VDC, and
negative ground 4–20 mADC) and one for range identification
(0-10 VDC).
• Optional RS232
• Compact and rugged, wall mounted NEMA-4 rated enclosure.
• CE Approval
1.3 Front Panel Description
All controls and displays except the power switch are accessible from the
front panel. See Figure 1-1. The front panel has three pushbutton membrane
switches, a digital meter, and an alarm indicator LED for operating the monitor.
These features are described briefly here and in greater detail in Chapter 4,
Operation.
Figure 1-1: Front Panel
Span Key: Pushbutton membrane switch is used to span calibrate the ana-
lyzer:
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