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<1. Introduction and General Description>
1-6
IM 12J05D02-01E
1.4
Configuration checklist for DO402
Standard configuration
Options
Reference for change
Measured variable(s)
Primary inputs
D.O. and Temp
DO range
0- 20 mg/L
any span within 0-50 mg/L
“range”
DO units
mg/L
ppm. % saturation
code 56
Temperature range
0- 50 °C
25 °C minimum span
“range”
Temperature unit
Celsius
Fahrenheit
code 11
Outputs
Analog output
4- 20 mA for DO
0-20 mA or 4-20 mA
code 30
Second output
4- 20 mA for Temp
0-20 mA or 4-20 mA
code 30
Output allocation
DO and Temp
DO, Temp, Table, Pl control
code 31
Contact outputs
S1= high at 19.5 mg/L
S2= low at 1.0 mg/L
(4) freely programmable
“setpoint”
code 40. 41, 42, 43
Contact allocation
mg/L and FAIL
mg/L, temp, wash, Pl control,
HOLD
code 40- 43
Contact variables
dead time= 0.2 s; hyst=
0.1 mg/L
time: 0- 200 s; hyst 0- 20 mg/L code 44
Add. contact functions
none
time out alarm
code 47
Control functions
none
Pl on contacts or mA2 output
code 45, 46, 34 33
Digital outputs
none
RS-485
code 60
Communication
Digital interface
disabled
RS-485
code 60
Communication software
disabled
PC402
contact factory
Variables on display
mg/L and temp
%sat, °C, mA1, mA2, SL, ZR,
REL
“display”
Burn out
disabled
burn low (3.5)/ high (22) on
mA1/ mA2
code 32
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
wash start/ setpoint adj
code 51
Diagnostics
Membrane condition
active
enable or disable
code 02
Check on Slope
active
enable or disable
code 02, 22
Check on zero
disabled
enable or disable
code 02, 21, 22
Check on stability
0.05 mg/L per 60 s
0-50 mg/L in 10-600 s
code 20
Compatibility
DO Sensor
DO30
DOX8, DO410, Ingold, DO70G code 01, 10
Temperature sensor
Pt1000
Pt 100, PB36, 22k NTC
code 10
Membrane thickness
50 μm (2 mil)
25 or 50 μm (1 or 2 mil), adj.
slope
code 01
Sensor principle
galvanic
galvanic or polarographic *1
code 01, “wiring”
Manual temp. comp.
disabled
disable or enable
code 13
Special Features
Salinity compensation
disabled
comp. for 0- 100 ppt NaCI
code 04
Temperature calibration
none
adju/- 7.5 °C
code 12
Zero calibration
disabled
disable or enable
code 21
Sensor washing
disabled
interval < 36 hours, wash time
0.1-10 min.
“Wash”
HOLD during maintenance disabled
hold last or hold fix
“Hold”
Contact during HOLD
disabled
possible on S1,S2, S3 or S4
code 40-42
Atm. press. compensation active
active or manual
Soft fail alarm
disabled
possible for E1..E4, E7..E9,
E12, E16, E22
code 53
Logbook
disabled
2 volumes of 50 events
code 61,62
*1:
Choose a polarographic sensor for an optical dissolved oxygen sensor.
9th Edition: Aug. 05, 2015-00
Summary of Contents for EXA DO402G
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