Teledyne 300 instruction manual Flow readout adjustment, DC power supply, 9.7 CPU

9.5 Flow readout adjustment

The sensor module in the M300 consists of a flow sensor and a pressure sensor. See Figure 9.2 for a diagram of this module. From these three sensors two values are displayed on the front panel TEST function area. These are:

•Sample flow

•Sample cell pressure

In order to adjust the flow or pressure read out, select the desired test function on the front panel and adjust the appropriate pot for the desired value per Figure 9.2.

FLOW AND PRESSURE READOUT

ADJUSTMENT

FIGURE 9.2

9.6 DC power supply

Overall performance of the DC power supply may be checked by observing the value displayed during test DCPS. If this value, a composite of the five (5) regulator outputs, deviates by more than 10% from the value recorded in Table 1.1 of this manual under Test Values, the outputs of the individual regulators should be measured.

Test points 1, 2, 3 and 4 provide connection to the temperature outputs on drawing no. 00016 in Appendix C.

9.7 CPU

If the display is operating and the green sample light is on, the CPU should be operating. If not, check for +5v to the CPU.

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 81