Hach-Lange 2100P iso - Portable Turbidimeter Instrument - Manual (Page 17)

Page 17
4650098 operation.fm OPERATION
Section 2 OPERATION
2.1 Operational Controls and Indicators
Key Description
Power key turns instrument on and off. If no keys are pressed for 5.5 minutes, the instru-
ment turns off automatically.
Performs a measurement. To conserve battery power, the lamp turns on only when READ
is pressed. A reading is displayed about 12 seconds after the key is pressed. After the rea-
ding is displayed, the lamp turns off and the reading continues to be displayed. After a
measurement is taken, there is a 4-second recovery time before another can be started. If
Read is pressed during the recovery time, the display will flash but the lamp will not turn
on until the recovery time is complete. If no key strokes occur for 5.5 minutes, the meter
turns off.
Hold this key for continuous reading if the meter is not in the Signal Averaging mode.
After the initial delay, the reading is updated every 1.2 seconds.
Performs a calibration or review calibration data. Also terminates a calibration or calibra-
tion review and returns to the 2100P ISO measurement mode.
Edits a flashing digit in the calibration mode, or scrolls through the calibration standards
(S0,S1, S2, S3) or diagnostic menu.
Moves the editing cursor to the digits being edited in the calibration mode or initiate
editing of a standard value.
Turns the signal averaging function on or off.
Selects the diagnostic mode.
I
O
READ
CAL
SIGNAL
AVERAGE
DIAG