DH Instruments PPCK PLUS, Руководство по эксплуатации и обслуживанию

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PPCK+™ Operation and Maintenance Manual
Page 11
©2001 DH Instruments, Inc .
2.3.4 CONNECTING THE HIGH PRESSURE SUPPLY (SUPPLY PORT)
The SUPPLY port is for connection of the high pressure gas that PPCK+ controls.
Using a pressure connecting hose or rigid tube of appropriate pressure rating, connect the
pressure supply to the SUPPLY port on the rear panel of PPCK+. The SUPPLY connection
is
DH200 F .
DH200 F is a gland and collar type fitting for coned and left hand threaded 1/4 in. (6 mm) OD
tube, equivalent to AE SF250C, HIP LF4, etc. DO NOT USE INCORRECT FITTINGS; DAMAGE
TO THE FITTING AND DANGER TO THE OPERATOR COULD RESULT.
The supply pressure should be equal to the maximum PPCK+ range + 5 % . The supply
pressure must be stable
±
1 % for PPCK+ pressure control to operate within specifications
(see Section 1.2.3).
Never connect a pressure supply greater than 20 % over the maximum range (H3) of the
PPCK+ model you are using. Always use the correct fittings.
Take care NOT to connect the high pressure supply to a port other than the SUPPLY port.
CONNECTING THE HIGH PRESSURE SUPPLY TO ANY PORT OTHER THAN THE SUPPLY PORT
MAY DAMAGE THE PPCK+ AND MAY CAUSE OPERATOR INJURY.
2.3.5 CONNECTING TO THE DEVICE UNDER TEST (TEST PORT)
The TEST port is for connection of the PPCK+ to the system into which it will measure and
control high gas pressures.
Using a pressure connecting hose or hard tube of appropriate pressure rating, connect the
device or system to be tested to the TEST port. The PPCK+ TEST connection is
DH200 F.
DH200 F is a gland and collar type fitting for coned and left hand threaded 1/4 in. (6 mm)
OD tube, equivalent to AE SF250C, HIP LF4, etc. DO NOT USE INCORRECT FITTINGS;
DAMAGE TO THE FITTING AND DANGER TO THE OPERATOR COULD RESULT.
Gas is a compressible fluid. The larger the pressurized volume, the larger the stored energy.
The size of high pressure volumes should be minimized for safety.
NEVER apply pressure to the TEST port greater than the PPCK+ maximum range (H3)
working pressure. Internal damage to the PPCK+ may result.
Operating the PPCK+ connected to a system with liquid contaminants without taking proper
precautions to purge the system and test line may cause contamination of the PPCK+ that
will affect measurement and control performance and require non-warranty service.