Electrical Connections
4. Electrical Connections
4.1 Overview
The terminal board connections for the various Honeywell measuring instruments are given in the appropriate Figures in this section.
To avoid the possibility of AC pickup in the cell leads, separate them from all AC
ATTENTION
Do not use shielded cable except where shown in the following figures.
4.2 Instrument Wiring for 4973 Cells with Integral Cable
4.2.1 Model 4973 Series with Integral Cable to UDA2182 Analyzer
NOTES
1.
2.FORCELLLEADSBLACKANDWHITE,USE16TO22AWGCABLE,SHIELDEDTWISTEDPAIR, WITH30pFMAX.CAPACITANCEBETWEENCONDUCTORS.CONNECTSHIELDTOTERMINAL “10”.FORMODEL4973INSTALLATIONSWITHHONEYWELL31079198SSFLOW CHAMBER,USE 22AWGMINIMUMCOAXIALCABLETYPERG59U(BELDEN9259OREQUIV.).CONNECTCOAX SHIELDTOTERMINALS“A”AND“10”.CONNECTCOAXCONDUCTORTOTERMINALS“C”AND“7”.
3.FORCOMPENSATORLEADSBANDD,USE16TO22AWG,TWOCONDUCTORCABLE.
4.CELLTOANALYZERCABLESARECONSIDEREDLOW LEVEL.RUNSEPARATEFROMHIGH LEVELWIRING.
DRAWING 50012874
Figure 4-1 Installation Diagram, 4973 Cells, with junction box head connected to UDA2182
Analyzer
10 | Installation and Maintenance Manual | 10/07 |
