Sensidyne gilian gilibrator 2 Operation & Service Manual - Components
9
GILIAN GILIBRATOR 2 CALIBRATION SYSTEM
Sensidyne Document No. 850190M (Rev G)
SECTION TWO
COMPONENTS
2.1
CONTROL UNIT
The Control Unit (refer to Figures 2.1 & 2.2) contains a
crystal-controlled microprocessor timing system. This
type of microprocessor, used in conjunction with the
built-in software, provides an extremely accurate
method for calculating the flow rate parameters.
The Control Unit contains the following components:
2.1.1
Buttons & Indicators
The
ON
and
OFF
buttons turn the Control Unit on and
off.
The
DELETE/RESET
button has three functions:
Pressing for 1 second
deletes the most recent read-
ing from the running average. It resets the average
and sample number to the previous reading. If a
printer is connected, a minus symbol is printed and
the average returns to the previous value. If a com-
puter is connected a minus symbol is displayed on the
computer monitor and the average returns to the pre-
vious value.
Pressing for 3 seconds
resets the current readings to
zero and initiates a new sampling sequence. If a
printer is connected, it prints a new header. If the
Flow Monitoring Software is running, its graph will
clear and a new sampling sequence will start.
Pressing simultaneoulsy with the ON button
sets
the sample size
.
The sample size is adjusted in 5
sample increments by repeatedly pressing
DELETE/RE-
SET
(ragne: 5–95).
Charge Indicator
This LED lights up when the batteries are charging.
2.1.2
Display Characters
FLOW
This shows the flow rate in either cubic centimeters
per minute (ccm) or liters per minute (lpm) depend-
ing on the Flow Cell Assembly used.
AVERAGE
Shows the average flow rate for the samples taken.
SAMPLE #
Shows the number of samples taken (MAX = 99).
LOW BAT
This warning is displayed if insufficient battery charge
remains to operate the unit properly. If the battery is
not recharged, the unit automatically shuts off shortly
after this message appears.
NOTE
Batteries must be fully charged for unit to function
properly.
WAIT
Indicates there is a flow measurement in progress.
ERROR 1
Indicates trouble with the Flow Cell connection or ad-
justment.
ERROR 2
If this message appears call the factory.
2.1.3
Interface Components
Charging Jack
A 2.1 mm barrel jack that supports a standard AC/DC
charger/adapter. With the charger/adapter the unit can
be operated while continuously plugged into an wall
socket. Or, the charger can be used to charge the unit
overnight (14 hours) prior to operation in the field.
Printer Jack
A 25-pin printer connector allows the unit to be con-
nected to: a) a Thermal Printer, b) a PC compatible
dot-matrix or ink jet printer, c) an PC computer. The
jack connects to a printer using a standard DB-25 to
Centronics printer cable. A Gilibrator 2 Flow Monitor-
ing Software Kit is available. The kit includes an oper-
ating manual, special cable, and software.
Cable Assembly
The 9-Pin or 15-pin cable assembly connects to the
Connecting Jack located on the back of the flow cell as-
sembly. On piston cell assemblies the cable directly
connects to the cell assembly 15-pin jack. Wet cell as-
semblies require a 15-to-9 pin adapter.
NOTE
Only non-CE Control Bases with 15-Pin cable assemblies
can be used with Piston Cells.