Simplicity 4040 Specifications download pdf (Page 62)

Operation Series 4040

62 Teledyne Analytical Instruments

SOURCE: The alarm can react to measurement levels of CH4,

NMH, or THC (the sum of the previous 2).

CAUTION: IT IS NOT GOOD PRACTICE TO SILENCE AN

EXISTING ALARM BY SETTING THE ALARM

ATTRIBUTE TO ‘DEFEAT”. THE ALARM WILL NOT

AUTOMATICALLY RETURN TO “ACTIVE” STATUS.

IT MUST BE RESET BY THE OPERATOR BY

PRESSING THE ESCAPE BUTTON. IF IT IS NOT

RESET, YOUR PROCESS WILL BE RUNNING

WITHOUT SAFEGUARDS THIS INSTRUMENT IS

DESIGNED TO PROVIDE.

4.14 The Range Function

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-> Range Select: Man

Autorange Src: THC

Man Rng: R1

R1: 0-100.0 ppm

R2: 0-1000.0 ppm

R3: 0-10000.0 ppm

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The value of the upper limit of the currently selected range (AUTO

or MANUAL) affects the voltage and current of the analog outputs on

the rear of the analyzer as well as contact closures indicating which

range is current. The Analog outputs on the rear of the analyzer

represent the proportion of the analysis concentration to the currently

selected range limit.

MANUAL/AUTO RANGE SELECT: In Manual Range select, the

Range indicated on the second line 'Man Rng:' is maintained as the

current range of operation. In Auto Range select, the software

determines the smallest range whose limit is larger than the analysis

concentration.

AUTO RANGE SOURCE: The automatic selection of range can

be set to select according to the CH4, NMH, or THC concentration.

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Simplicity 4040 Specifications Page 62