Hach-Lange NITRATAX sc - Manual (Page 20)

18
5.4 Sensor diagnostics menu
SELECT SENSOR STATUS>SELECT SENSOR (if more than one sensor is attached)
ERROR LIST
Displays all actual error messages:
MOIST, R < M, DEXT < 0.0, W. POS. UNKNOWN, W. BLOCKED, FLASH FAILURE, R TOO
HIGH, REPLACE SHAFT SEAL, SENSOR MISSING
WARNING LIST
Displays all actual error messages:
EM TOO HIGH, CONC. TOO HIGH, CHECK CALIBR., REPLACE PROFILE, SERVICE
REQUIRED, REPLACE SEALS, SHAFTSEALS REPL.
Note: For more information about error messages and warnings refer to Section 7 on page 29 .
5.5 Sensor setup menu
SELECT SENSOR (if more than one sensor is attached)
CALIBRATE (see 5.6 on page 20 )
FACTOR
Correction factor for the measured value.
Possible settings: 0.80–1.20
Default: FACTOR = 1
OFFSET
Adjustable from –250 to +250 mE for zero point correction
Default: OFFSET = 0
OFFSET ADJUST Perform a zero point calibration
1 SAMPLE CAL Perform a single point calibration
CAL CONFIG
Select OUTPUT MODE or CAL INTERVAL
OUTPUT MODE: Select the behavior of the outputs during calibration for zero point setting
(Hold, Active, Transfer, Choice). Hold maintains the last reading prior to going into the menu.
Active transmits the current level readings, corrected with previous calibration data until new
data is entered. Set Transfer transmits the value designated during the system setup
CAL INTERVAL: Enter number of days
SET CAL DEFLT The instrument resets the settings to the default configuration.
CONFIGURATION
EDIT NAME Can be edited as required (up to 10 characters)
PARAMETER NOx-N or NO3 (eco only NOx-N)
MEAS UNIT
Unit for the measured result.
Possible settings: mg/l, ppm
MEAS INTERVAL
eco/clear: 5, 6, 10, 12, 15, 20, 30 min
plus: 15, 20, 30 sec; 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 min
Note: Intervall of the data log is the same like the measuring intervall.
RESPONSE TIME
Indication of the actual response time in Counts (count x measuring interval = response time)
eco: 3–6 x MEAS INTERVAL
clear: 1–6 x MEAS INTERVAL
plus: 1–12 x MEAS INTERVAL
Note: Gliding average over 2-12 measurements.
CLEANING
eco, clear: 1/MEASURE
plus: 1/MEASURE; 1,2,3,5,6,10,12,15,20,30 min; 1,2,3,4,6,12 h, 10:00 h
WIPER MODE
Wiping interval.
Select SINGLE or DOUBLE A-B-A or DOUBLE B-A-B
SINGLE: Default setting (Default: eco)
DOUBLE A-B-A: Double wiping frequency
DOUBLE B-A-B: Double wiping frequency (Default: plus, clear)
BYPASS
YES/NO (plus and clear)
YES: Setting for bypass application (inhibits wiper "extension")