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Appendix – Teledyne LXT-220 User Manual

Page 53

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Dissolved Oxygen Controller

Appendix

Teledyne Analytical Instruments

53

Appendix

A.1 Specifications

Packaging: NEMA-4X weatherproof enclosure

suitable for general purpose application

Power Requirements: 115/220 VAC or optionally 24 VDC 0.25A

Display: Menu driven Supertwist LCD.

Simultaneously displays process ID,
Process value in Eng. units, % output and
temp in °C or °F.

Sensor: Application specific

Input Measurement Parameters:

Conductivity, Resistivity, pH, Specific
Ion, Dissolved Oxygen, ORP.
Also, external events and analog inputs
can be integrated logically or operational
modifiers.

Outputs: 4-20 mA, HART or RS232 up to a

maximum of 6 analog outputs.

Response Time: 90% of step change in 1 second

Accuracy: ±0.10% of full scale

Linearity: ±0.05% of full scale

Sensitivity: ±0.05%

Stability: ±0.2% per year @ 0 to 70°C

Repeatability: ±0.1%

Input/Output Isolation: Max 300V between process input and any

4-20mA output