|
Sensor |
Planar
gold/aluminum capacitance |
| Calibration
Range |
-90°C
to +20°C (-130°F to +68°F) dew point temperature |
| Recommended
Recalibration Cycle |
6-24
months, depending on application and required accuracy |
| Accuracy |
+/-
2°C (+/- 3.6°F) |
| Repeatability |
+/-
1°C (+/- 1.8°F) |
| Max.
Relative Humidity |
50%
@ dew points > 0°C (32°F) |
| Temperature
Coefficient |
<0.2°C
/°C (<.36°F/°F) |
| Ambient
& Storage Temperature |
-60°C
to +50°C (-76°F to +122°F) |
| Nominal
Operating Temperature |
-20°C
to +40°C (-4°F to +105°F) |
| Max.
Operating Pressure |
350
bar (5100 psi) |
| Helium
Leak Rate |
<10-7,
mbar l/s
|
| Max.
Gas Velocity |
50.0
m/s at 1 bar; 5.0 m/s at 10 bar; 0.5 m/s at 100 bar |
| Signal
Transmission |
Standardized
pulse (PFM) via three-wire cable |
| Probe
Mounting Adapter |
Stainless
Steel 1.4571 with G 1 / 2 thread (DIN/ISO 228) and
O-ring seal out of Viton |
| Rating |
IP
65 |
| Tightening
Torque |
50
Nm |
| Wrench
Width |
30
mm |
| Protection |
Cap
w/10um |
| Weight |
830
grams (1.8 lbs.) |
| |
| |
| Electronics |
Microprocessor-controlled |
| Measurement
Units |
Dew
point temperature in (C, ppmv, ppmw (optional) |
| Instrument
Range |
-100°C
to +20°C (-148°F to +68°F), standard.
0.01 to 9999 ppmv, and ppmw, (optional) |
| Display |
4-character
LCD w/bar graph 0-100% and two control fields |
| Outputs |
Two
current outputs of 0/4-20 mA into 500 ohms max.,
Two 0/2-10 V output, 10 kohm; programming range, damping,
and fail-safe mode (i.e. min/max/hold); two alarm
relays SPDT dry contacts rating 2.5A, max. 250 V AC,
max. 300VA at cos<0.7, max. 100 W @ 100 VDC, programmable
set points, and hysteresis; one system alarm, rating
same as above, triggered by the self-diagnostics program.
Rackbus: Serial bus connections to ZA 672 communications
interface. User Interface: Six push-buttons for display
manipulation, setting parameters and functions utilizing
the supplied programming matrix. |
| Supply
Power Module |
24
VDC, tolerance 20 to 30 VDC, max. 2 V ripple within
the tolerance, max. 125 mA |
| Power
Supply |
Monorack
II, 230/115 VAC, wall mount enclosure |
| Analyzer
Module |
Formatted
to Europa Card 100 x 160 mm, fitting into a Racksyst,
electrical connection via 28 pin plug DIN 41612 |
| Front
Panel |
7
pitch (35 mm), black plastic with blue overlay |
| Enclosures |
Monorack
wall mount, 65 x 165 x 200 mm with integral
power supply (selectable voltage 220/110 V AC, 200/100
V AC, or 48/24 V AC); panel mount version 1, 144 x
48 x 260 mm (requires 24 V DC power supply or optional
220/115 V AC power supply; this version supports up
to four Hygrotec MMY 170 analyzers with one NT 471
power supply; cable connection via screw terminals. |
| Protection |
IP
20 |
| Weight |
Electronics
module: 300 grams (.65 lb.)
Monorack: 1.3 kg (2.86 lbs.) |
