Xylem RH 520 PAPERLESS HUMIDITY/TEMPERATURE CHART RECORDERS User Manual

Page 6

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Model RH520 Version 2.7 7/05

6

PUSH-BUTTON DESCRIPTION

VIEW

Return the LCD to the Standard View

Escape from any setting function without storing value changes

Scrolls highest and lowest (MAX/MIN) readings when in Standard View

ALARM

Display or Set alarm values

TIME

Display a reading stored at specific Time and Date

Set and Display the recording Sampling Rate

Set the Time and Date

SET

Used in combination with other buttons to set new parameter values

Stores new parameter values and returns to the Standard View

TEMP

Used in combination with other buttons to set the vertical graph range

Used in combination with other buttons to set temperature alarm values

Used in combination with the RH button to display Dew Point

RH

Used in combination with other buttons to set the vertical graph range

Used in combination with other buttons to set RH alarm values

Used in combination with the TEMP button to display Dew Point

Right, left, down, and up arrow buttons for scrolling data and navigating
the display

KEYPAD QUICK REFERENCE (ALSO SHOWN ON REAR OF THE RH520 HOUSING)

Key-press

Function

Second / Alternate Keystrokes

VIEW

Selects view mode

VIEW modes: Normal, TEMPmax,
RHmax, TEMPmin, RHmin

SET

Saves new settings

VIEW to cancel, exit mode

ARROW KEYS

Scroll through selections

Movers cursor through stored points

TIME

View reading at specific time/date

Arrow keys to select, VIEW to exit

TEMP + RH

View Dew Point temp.

VIEW to exit

ALARM

Step back through ALARM points

ALARM selects next Alarm, VIEW to exit

SET + TEMP + ALARM

Enters Set TEMP Alarm mode

ALARM selects HIGH/LOW, SET to save

SET + RH + ALARM

Enters Set RH Alarm mode

ALARM selects HIGH/LOW, SET to save

TIME + VIEW

View Sample Rate

VIEW to exit

SET + TIME + VIEW

Enter Set Sample Rate mode

SET to save, VIEW to exit

SET + TIME

Enter Set Time/Date mode

SET to save, VIEW to exit

SET + TEMP + UP

Enter Set TEMP Vertical Scale mode

TEMP selects upper/lower, SET to save

SET + RH + UP

Enter Set RH Vertical Scale mode

RH selects upper/lower, SET to save

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