Instruction Manual WGM701 Wasp
InstruTech
Page 4
output impedance
2 × 4.7
, short-circuit proof
load impedance
≥
10 k
, short-circuit proof
error signal
analog output switches to ≥ 10 V
response time
p = 7.6 X 10-9 Torr ~1 sec
p > 7.6 X 10-7 Torr <100 msec
sensor status output
cold cathode sensor on/off status is determined by open collector transistor (ground emitter)
rated at 30 V max. V
CE
, 100 mA max. I
C.
Transistor off = Sensor off, Transistor on = Sensor on
sensor status indication on gauge
sensor ON/OFF status indication via LED
input power
(1)
14.5 to 30 Vdc, 2 W protected against power reversal and transient over-voltages
(Minimum voltage of the power supply unit must be increased proportionally to the length of the cable)
fuse required
≤ 1AT
supply voltage ripple
<1 Vp-p
high voltage in measuring chamber
operating voltage (anode): <3.3 KV
sensor activation voltage (anode): <4.5 KV
current in measuring chamber
low current collector version: ≤ 100 µA
high current collector
version: ≤ 500 µA
connector
9-pin D-sub male
altitude
19,685 ft. (6,000 m) max
CE compliance
EMC (EN61000-6-2, EN61000-6-3, EN61010-1, EN61326-1)
environmental
RoHS compliant
(1)
WARNING!
The gauge may only be connected to power supplies, instruments, or control devices that conform to the
requirements of a grounded protective extra-low voltage (SELV) and limited power source (LPS), Class 2. The connection to the gauge has
to be fused.
1.3
Dimensions
in. (mm)
Fitting
dimension A
NW25KF
0.59 in. (15 mm)
NW40KF
0.67 in. (17 mm)
2 3/4 in. Conflat® 0.91 in. (23 mm
