A
D
MOUNTING FLANGE
L
1F
4 MOUNTING HOLES
1J
EQUISPACED ON K PCD
CATHODE HEATER LEAD (YELLOW)
G LONG, TAG TO SUIT
1H
1B
GRID 1 LEAD (GREEN)
G LONG, TAG TO SUIT
1H
RESERVOIR HEATER LEAD (RED)
G LONG, TAG TO SUIT
1H
2185D
1C
ANODE CONNECTION
FITTED WITH
1/
4-20 UNC SCREW
GRID 2 CONNECTION
FITTED WITH
8–32 UNC SCREW
SEE NOTE 1
SEE NOTE 3
SEE NOTE 2
OUTLINE
(All dimensions without limits are nominal)
HEALTH AND SAFETY HAZARDS
E2V Technologies hydrogen thyratrons are safe to handle and
operate, provided that the relevant precautions stated herein are
observed. E2V Technologies does not accept responsibility for
damage or injury resulting from the use of electronic devices it
produces. Equipment manufacturers and users must ensure that
adequate precautions are taken. Appropriate warning labels and
notices must be provided on equipments incorporating E2V
Technologies devices and in operating manuals.
High Voltage
Equipment must be designed so that personnel cannot come
into contact with high voltage circuits. All high voltage circuits
and terminals must be enclosed and fail-safe interlock switches
Ref
Millimetres
Inches
A
212.7 max
8.375 max
B
152.4
6.000
C
147.0
5.787
D
3.18
0.125
F
106.3 max
4.187 max
G
177.8 min
7.000 min
H
6.35
0.250
J
8.0
0.315
K
135.7
5.344
L
117.35
4.620
Inch dimensions have been derived from millimetres.
Outline Notes
1. The mounting flange is the connection for the
cathode, cathode heater return and reservoir
heater return.
2. A minimum clearance of 57.15 mm (2.250 inches)
must be allowed below the mounting flange.
3. The recommended mounting hole is 108 mm
(4.250 inches) diameter.
must be fitted to disconnect the primary power supply and
discharge all high voltage capacitors and other stored charges
before allowing access. Interlock switches must not be
bypassed to allow operation with access doors open.
X-Ray Radiation
All high voltage devices produce X-rays during operation and
may require shielding. The X-ray radiation from hydrogen
thyratrons is usually reduced to a safe level by enclosing the
equipment or shielding the thyratron with at least 1.6 mm
(
1/
16 inch) thick steel panels.
Users and equipment manufacturers must check the radiation
level under their maximum operating conditions.
Printed in England
CX1174, page 4
#
E2V Technologies
Whilst E2V Technologies has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use
thereof and also reserves the right to change the specification of goods without notice. E2V Technologies accepts no liability beyond that set out in its standard
conditions of sale in respect of infringement of third party patents arising from the use of tubes or other devices in accordance with information contained herein.
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