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2.0 INSTALLATION
QUICK START
Install DV-33D gauge tube in vacuum system (see section 2.4). Ensure system
is leak free.
Connect the tube to the DNV-33D power supply/display and apply 115 VAC.
Allow 30 minutes for warm-up (see section 3.1).
Set the switch on the DNV-33D to the “OPR” position for normal operation
(factory calibration).
Set the switch on the DNV-33D to the “Set A” position. The relay will now be
energized when the pressure is less than the set point. The set point LED will be
on when the relay is energized. The set point may be set by adjusting the appro-
priate potentiometer on the front panel.
Set the switch on the DNV-33D to the “Set B” position. The relay will now be
energized when the pressure is less than the set point. The set point LED will be
on when the relay is energized. The set point may be set by adjusting the appro-
priate potentiometer on the front panel.
Set the switch on the DNV-33D to the “CAL” position. This is to be used when
zeroing the gauge with the tube at a pressure less than 0.1 mTorr.
Set the switch on the DNV-33D to the “TEST” position. Use this position to
check the DNV-33D and to set the gain for individual tubes.
2.12.1
2.12.1
2.1
PP
PP
P
anel Mountinganel Mounting
anel Mountinganel Mounting
anel Mounting
The DNV-33D instrument package can be mounted in a 3-1/16 inch high by 3-5/8 inches wide
hole. Secure the gauge with the mounting brackets provided.
2.22.2
2.22.2
2.2
Connect the Gauge Connect the Gauge
Connect the Gauge Connect the Gauge
Connect the Gauge
TT
TT
T
ube wire to the gauge as folloube wire to the gauge as follo
ube wire to the gauge as folloube wire to the gauge as follo
ube wire to the gauge as follo
ws:ws:
ws:ws:
ws:
REAR PANEL GAUGE TUBE WIRE COLOR
“TUBE” PIN #
A A BLACK
C C WHITE
D D GREEN
2.32.3
2.32.3
2.3
Connect other wires to relaConnect other wires to rela
Connect other wires to relaConnect other wires to rela
Connect other wires to rela
y contacts and output tery contacts and output ter
y contacts and output tery contacts and output ter
y contacts and output ter
minalsminals
minalsminals
minals
..
..
.
2.42.4
2.42.4
2.4
Gauge Gauge
Gauge Gauge
Gauge
TT
TT
T
ube Installaube Installa
ube Installaube Installa
ube Installa
tiontion
tiontion
tion
Install the gauge tube in a clean, dry vacuum system with the open end pointing down so as to
be self-draining should any vapors condense within the tube (See Sec. 5.1). For maximum
accuracy, it is recommended that the tube be outgassed in the vacuum system for a minimum of
4 hours.