Honeywell STT25D, Operator'S Manual

Page: 3 / 40

ii Smart Temperature Transmitter STT250 – Operator Manual
6.3.2 Transmitter Operating in 4 Byte Digital Output or in 4-20 mA
Analog Mode ................................................................................................. 28
6.3.3 Transmitter Operating in 4-20 mA Analog Output Mode.............. 28
6.4 D
IAGNOSTIC AND
T
ROUBLESHOOTING
......................................................... 29
6.4.1 Analog Meter ....................................................................................... 29
6.4.2 Smart Meter......................................................................................... 29
6.4.3 4-20 mA Analog Mode Calibration of Smart Meter ..................... 30
APPENDIX A TRANSIENT PROTECTOR INSTALLATION
INSTRUCTION.............................................................................. 33
A.1 O
VERVIEW
.................................................................................................... 33
A.2 F
EATURES AND
B
ENEFITS
............................................................................ 33
A.3 E
LECTRICAL
C
HARACTERISTICS
................................................................... 33
A.4 I
NSTALLATION
P
ROCEDURE
......................................................................... 34
A.5 W
IRING
R
EFERENCE
.................................................................................... 35
FIGURES AND TABLES
Figure 1 : Operating Areas ......................................................................................2
Figure 2: Bench Check Wiring Connections ........................................................7
Figure 3: Output Sensor Wiring Connections ......................................................8
Figure 4: Flow Chart for analog and DE Configuration.................................. 10
Figure 4-1: Specific Flow Chart for DE Configuration ..................................... 11
Figure 5: Flow Chart for HART Configuration................................................... 13
Figure 6: DIN Rail Mounting ................................................................................ 14
Figure 7: Wall Mounting Dimensions ................................................................. 15
Figure 8: Pipe Mounting Dimensions ................................................................. 15
Figure 9: Spring Loading and Sensor Assembly.............................................. 16
Figure 10: Aluminium Direct Head Mount Housing Dimensions .................... 17
Figure 11: Plastic Direct Head Mount
Housing Dimensions .......................... 17
Figure 12: Cast Iron Direct Head Mount Housing Dimensions ...................... 17
Figure 13: Stainless Steel Direct Head Mount Housing Dimensions ............ 18
Figure 14: Meters Connections ........................................................................... 27
Figure 15: Horizontal Style Bargraph................................................................. 29
Figure A-1: Typical wiring of transient protector to STT250 transmitter...... 35
Table A-1 Electrical Characteristics ................................................................... 33
Table A- 2 Transient Protector Installation....................................................... 34