Yokogawa DO202 2-Wire Dissolved Oxygen Analyzer - Manual (Page 63)

IM 12J05C01-01E
1-2 Appendix
A-1-2 Configuration Checklist for DO202
Standard configuration Options Reference for change
Measured variable(s)
Primary inputs
DO and Temp
DO units ppm ppb. % saturation code 56
Temperature unit Celsius Fahrenheit code 11
mA Outputs
Analog output
4-20mA for ppm ppb or %sat code 56, 31
Output linearization disabled ppm, ppb or %sat code 35
Burn out disabled burn low (3.6) / high (21) on mA output code 32
Communication
Digital interface
HART disabled code 60
Communication software external HHC contact factory
Interface
Variables on display ppm and temp %sat, °C, SE, ZR, REL “display”
Password protection disabled for mains/ comm./ serv level code 52
Autoreturn return to measure in 10 minutes enable or disable code 50
Add. functions in MAINT disabled manual pressure code 51
Diagnostics
Check on Slope
active 1-1999 na/ppm code 22
Check on zero disabled enable or disable code 02, 21, 22
Check on stability 0.1 ppm per 60 s 0-50 ppm in 5-600 s code 20
Compatibility
DO sensor
SM31 DO30G code 01, 10
Temperature sensor 22k NTC Pt 1000 code 10
Sensor principle polarographic galvanic code 01, “wiring”
Manual temp. comp. disabled disable or enable code 13
Special Features
Salinity compensation
disabled comp. for 1-99.9 ppt NaCI code 04
Temperature calibration none adjustment ±7.5 °C or ±13.5°F code 12
Zero calibration disabled disable or enable code 21
Atm. press. compensation manual
Soft fail alarm disabled possible for E1..E2, E7..E9, E16 code 53
Logbook disabled 2 volumes of 50 events code 61,62
mA
mA
Through HART the user has access to the process
variables:
PV: User selected process value: ppm, ppb or %
saturation
SV: Temperature
TV: % Saturation
QV: sensor current
Each of these process variables can be decoded into
current output or contact output through the HIM: Hart
Interface Module. Yokogawa offers standard a HIM
with two 0- 20 or 4- 20 mA outputs and three contact
outputs with 24 VDC power supply.
Full communication with the DO202 can be done
through various brands of HART Handheld termi-
nals (HHT) or through Pactware. This program and
the Yokogawa DTM library can be downloaded
from YOKOGAWA WEB sites free of charge by
Yokogawa customers.
Yokogawa recommends the use of MH-02 modem
for HART-RS232 conversion.
A-1-3 HART process variables mA