Simplicity 4040 Specifications download pdf (Page 30)

Installation Series 4040

30 Teledyne Analytical Instruments

% of Range for THC (THC – Total Hydrocarbon is the summation

of the CH4 and NMH values).

Waveform. Waveform is the FID detection level updated 10 times

each second. The output is compared against the maximum

input for the Analog to Digital Conversion hardware and

scaled to a 0-1VDC (or 4-20mA DC) output.

Note: The Range setting applies to the CH4, NMH, and THC values.

Table 3-1: Analog Output Connections

Pin Function

3 Channel 2, + 4-20 mA, floating

4 Channel 2, – 4-20 mA, floating

5 Channel 1, + 4-20 mA, floating

6 Channel 1, – 4-20 mA, floating

8 Channel 2, 0-1 VDC

23 Channel 2, 0-1 VDC, negative ground

24 Channel 1, 0-1 VDC

7 Channel 1, negative ground

3.3.3.5 ALARM RELAYS

The nine alarm-circuit connector pins connect to the internal alarm

relay contacts. Each set of three pins provides one set of Form C relay

contacts. Each relay has both normally open and normally closed contact

connections. The contact connections are shown in Table 3-4. They are

capable of switching up to 3 amperes at 250 VAC into a resistive load.

The connectors are:

Threshold Alarm 1:

Can be configured as high (actuates when concentration is above

threshold), or low (actuates when concentration is below threshold).

Can be configured as failsafe or non-failsafe

Configured as non-latching

Can be configured out (defeated).

Can be set to trigger by levels of CH4, NMH, or THC.

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Simplicity 4040 Specifications Page 30