Teledyne OT-3 User Manual download pdf (Page 10)

Introduction OT-3

Teledyne Analytical Instruments 2

The Model 3300/OT-3 Control Unit has its own long list of features

including:

• Keypad lockout feature

• Two user settable fail-safe alarms (with a user settable 0-20

min. time delay )

• Two user settable ranges (from 0-10PPM – 0-9999PPM)

with user selectable auto-ranging.

• Power fail alarm

• SSR power output (Solid State Relay power available on AC

control units)

• Micro processor based electronics 8 bit ADC & 18 bit DAC

• Large 3 ½ digit LED O2 concentration read-out

• 7 button user interface keypad

• Alarm condition indicator LED

• 100-240 VAC 50/60 Hz power (optional 9-36VDC )

• 0-10 VDC output

• 4-20 mA output

• 0-10 VDC range ID output

• Electronic temperature compensation

• Optional RS323 interface

• Accuracy: +/- 2% of range (at constant temp.)

• Response time: 90% in 65 sec of less @ 25 degrees C

• Temperature range (0-50 degrees C)

1.3 Front Panel Description

All controls are accessible from the front panel. See Figure 1-1.

The front panel has seven push-button membrane switches, a digital

meter, and an alarm indicator LED for operating the analyzer. These

features are described briefly here and in greater detail in Chapter 4,

Operation.

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Teledyne OT-3 User Manual Page 10