Hach-Lange NITRATAX sc - Manual (Page 22)

20
Operation
5.6 Sensor calibration
1. Select MENU.
2. From the Main Menu, select SENSOR SETUP and confirm.
3. Select the appropriate sensor, if more than one sensor is attached and confirm.
4. Select CALIBRATE and confirm.
COUNTERS
Overview of TOTAL TIME, PROFILE, CAL CHECK, SERVICE, SEALS, SHAFTSEAL, MOTOR
and FLASH
TOTAL TIME: Counter
PROFILE: Counter 50000–0-negative number
Note: Negative if passed. Negative numbers create warning messages.
CAL CHECK: Counter xdays–0 - negative number
Note: Negative if passed. Negative numbers create warning messages.
SERVICE: Counter 180 days–0-negative number
Note: Negative if passed. Negative numbers create warning messages.
SEALS: Counter 365 days–0-negative number
Note: Negative if passed. Negative numbers create warning messages.
SHAFTSEAL: Counter 500000–0-negative number
Note: Negative if passed. Negative numbers create warning messages.
MOTOR: Counter
FLASH: Counter
MAINT. PROC.
Select REPLACE PROFILE, SERVICE DONE, WIPERTEST, SIGNALS or OUTPUT MODE
REPLACE PROFILE: see
6.3 on page 25
SERVICE DONE: ARE YOU SURE? Confirm or press BACK key
Confirm: The instrument resets the settings after a prompt confirmation to the default
configuration.
Press BACK key to return to the MAINT. PROC. menu.
WIPERTEST: Select WIPE or DRIVE OUT WIPER or MOTOR CURRENT.
WIPE: Wiping process
DRIVE OUT WIPER: Wiper profile extends, on flow-through versions inhibited (see
6.2 on page
24 )
MOTOR CURRENT: Measurement during the wiping process (motor current < 100 mA)
SIGNALS: ENTER = WIPE: Confirm.
Average value: target: < 100 mA
Individual measured value = displayed value
Single measured value for AQA (FACTOR = 1, OFFSET = 0)
W.POS (wiper position)
DEXT (delta extinction between EM and ER)
EM (extinction measuring channel)
ER (extinction reference channel)
M (measured level)
R (reference level)
IM (intensity measuring channel)
IR (intensity reference channel)
MOIST
OUTPUT MODE: Select ACTIVE or HOLD or TRANSFER or CHOICE
5.5 Sensor setup menu (continued)