VELTRON DPT 2500-
plus
Air Monitor Corporation
116-047-20.PMD (5/5/11)
VELTRON DPT 2500-
plus
- IO&M Manual
6
SECTION 4 – INSTALLATION
4.4 – PROCESS CONNECTIONS
The VELTRON DPT 2500-
plus
comes standard with brass 1/8" FPT connection fittings (or special fittings if ordered).
To
th
ese connect
th
e appropriate fittings for the type and size of signal tubing used. Although any size tubing can be
used, the response time of the VELTRON DPT 2500-
plus
to process change can increase if there is an increase in
tubing s
i
ze or an increase in tube length. The fo
llo
wing t
abl
e li
s
ts recommended tube size versus length.
When connecting the VELTRON DPT 2500-
plus
to an airflow measuring device, connections must be completed as
follows:
– High port on the VELTRON DPT 2500-
plus
connect
s
to T
ot
al Pressure from the airflow measuring device.
– Low port on the VELTRON DPT 2500-
plus
connect
s
to S
tati
c Pressure from the airflow measuring device.
When connecting the VELTRON DPT 2500-
plus
for positive room pressurization, connections must be completed as
follows:
– High port on the VELTRON DPT 2500-
plus
connects to sensor from monitored room.
– Low port on the VELTRON DPT 2500-
plus
connects to reference sensor.
When connecting the VELTRON DPT 2500-
plus
for negative room pressurization, connections must be completed
as follows:
– High port on the VELTRON DPT 2500-
plus
connects to reference sensor.
– Low port on the VELTRON DPT 2500-
plus
connects to sensor from monitored room.
Signal Line Length
Up to 50'
50' to 200'
Over 200'
Recommended Tube Size
1/4"
3/8"
1/2"
CAUTION
It is extremely impor
ta
nt that no pressure be present in signal tubing at the time of inst
a
llation,
and the orien
ta
tion of High and Low pressure signal lines is maint
a
ined between the source
and the VELTRON DPT 2500-
plus
.
When making any tubing connections or changing fittings, use a 9/16” wrench to prevent the
1/8” FPT bulkhead fitting from turning.
Содержание VELTRON DPT 2500-plus
Страница 2: ......
