Conductivity; Pressure Measurement; Run Time Data; Flow - Parker 20H Guide D'utilisation

4.3.2 Conductivity

The conductivity menu gives a graphical indication of the water quality. When all 10 blocks
are shaded the water quality is to specification.
When the number of shaded blocks drops to four, the "Change Water" error message will be
displayed, the water bottle indicator will flash red, and an intermittent alarm will sound.
Hydrogen will continue to be delivered to the application.
If the water quality degrades to the point at which none of the blocks are shaded, the outlet
valve of the generator will close and a conductivity error will be generated. The water bottle
indicator will illuminate red and a continuous alarm will sound. Hydrogen will not be delivered
to the application.
Press to advance to the next menu.
The water bottle should be drained and refilled with deionised water, ASTM II, >1 M , <1 S, filtered to <100 m at the earliest convenient time.

4.3.3 Pressure Measurement

The units of pressure measurement may be changed between bar, psi and Mpa.
Press or to change the units of measurement.
When the desired units have been selected, press

4.3.4 Run Time Data

The Run Time Data Menu displays the following data:
HOURS RUN - Time in hours that the generator has been producing hydrogen.
SERVICE IN - The time in hours that the generator can produce hydrogen before a
service is required.

4.3.5 Flow

The Flow menu displays the current flow and the total amount of hydrogen produced by the
generator when on-line.
Flow ml/min. - Current flow in ml/min being produced by the generator. This is for indication
only and we recommend the use of a flow meter to gain an accurate measurement.
Litres - Total amount of hydrogen produced by the generator measured in litres.

4.3.6 Start-Up Options

The start-up options menu allows the user to select the generator's default mode of operation when the generator is powered.
Direct Start - The generator will perform a system check then start producing hydrogen gas to
satisfy the set flow rate.
Standby - The generator goes directly into standby mode.
Standby & Check - The generator will perform a system check then go into standby mode.
Press or to change the start-up options.
When the desired options have been selected, press
14
to advance to the next menu.
to advance to the next menu.
C O N D U C T I V I T Y
X
C h a n g e W a t e r
A C T
1 0 0 P S I
C o n d u c t i v i t y
A C T 1 0 0 P S I
P R E S S U R E U O M
P S I
H O U R S R U N X
S E R V I C E I N X
F L O W m l / M I N
L I T R E S
S T A R T - U P O P T I O N S
D I R E C T S T A R T
S T A R T - U P O P T I O N S
S T A N D - B Y
S T A R T - U P O P T I O N S
S T A N D - B Y
& C H E C K
X X X X
X X X X
0 0 0
0 0 0