Garnet SeeLevel II 900-D4S Single Manual page 10

code over the phone so he can turn the gauge on, which
saves the tank owner the trouble of having to travel out to
the tank to turn on the gauge. The initial code out the door is
1234; this can be changed with the master code.
2. Long User Code: this is the short code with two more digits
added to it, thus by knowing the long user code the customer
also knows the short user code. This allows the customer
to turn the gauge on and off, select Fahrenheit or Celsius
temperature readouts (using the short user code), turn the
4-20 mA and digital outputs on or off, set the volume 4-20 mA
calibration, and set alarm points (using the long user code).
This is useful when a customer rents a tank with the gauge
or remote communications turned off, and later decides to
use these functions. The customer can be told the code over
the phone so he can activate these functions, which saves the
tank owner the trouble of having to travel out to the tank to
program the gauge. The initial code out the door is 123456;
this can be changed with the master code.
3. Master Code: this is an eight digit code used by management
and the installer to set the user codes and the gauge display
calibration. It provides complete access to all gauge functions.
It cannot be changed; it is coded into the microprocessor
permanent memory. Each installer/service provider has their
own Master code and the Master code is available upon
request. This code should not be revealed to anyone who
does not need to know.
The following are instructions for accessing and programming
various gauge menus and functions.
To turn on the backlight:
1. Press the LIGHT button. The backlight will turn on and remain
on for a few seconds. Do not hold the button down, since if
it is held down too long the gauge will enter programming
mode.
To show battery condition:
2. Press the BATTERY button on the bottom right side of the
keypad. The backlight will turn on and the battery status of
the display and sender bar will be shown for a few seconds.
Page 10 900D4S Manual