Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 3)

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Table of Contents
Table of Contents
........................................................................ 1
Section 1 Specifications
......................................................... 5
Section 2 General information
........................................... 11
2.1 Safety information .................................................................... 11
2.1.1 Use of hazard information ................................................. 11
2.1.2 Precautionary labels.......................................................... 11
2.2 General product information..................................................... 13
2.2.1 Product overview............................................................... 13
2.2.2 FDA 21 CFR part 11 Compliance (HART only)................. 13
2.2.2.1 Electronic signatures for si792 P series transmitters . 14
2.2.2.2 Audit trail for si792 P series transmitters.................... 14
2.3 Product models ........................................................................ 14
Section 3 Installation
.............................................................. 15
3.1 Hazardous location control drawings ....................................... 16
3.2 Unpacking the transmitter ........................................................ 16
3.3 Mechanical installation ............................................................. 17
3.3.1 Transmitter assembly ........................................................ 17
3.3.2 Mounting ........................................................................... 18
3.3.2.1 Wall mount ................................................................. 18
3.3.2.2 Panel or pipe mount (optional) ................................... 18
3.4 Wiring Safety Information ......................................................... 20
3.5 Electrical installation................................................................. 21
3.5.1 Wire preparation................................................................ 21
3.5.2 Power and communication connections............................ 23
3.5.2.1 si792 P and si792x P (4–20 mA/HART) wiring .......... 24
3.5.2.2 si792x P-FF and si792x P-PA wiring.......................... 25
3.5.3 Sensor wire connection ..................................................... 25
3.5.3.1 Hach combination pH/ORP sensors wiring ................ 26
3.5.3.2 pH/ORP sensors with solution ground wiring ............. 27
3.5.3.3 Differential pH/ORP sensor wiring ............................. 28
3.6 HART communication connection ............................................ 29