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Hygrotec MMY 170
/ DY 75 Trace Moisture
Analyzer
The
Hygrotec( MMY 170 extends the capabilities of the Hygrotec MMY 150 by
providing both moisture and temperature measurements in both gases and
liquids. It consists of an MMY 170 transmitter and DY 75 probe. The probe
utilizes a planar capacitive gold/aluminum oxide moisture sensor and an
RTD temperature sensor. The temperature signal is used for compensation of
the moisture reading as well as for the measurement of process
temperature.
The MMY 170 is an intrinsically safe (Eex ia) IIC
analyzer and probe combination that measures dew point temperatures from
–90°C to +20°C (-130°F to +68°F) with ( 2°C ((3.6°F) accuracy. The
analyzer includes a four digit LCD display and analog bar graph; it
operates with a 24 VDC power supply. The microprocessor-controlled
analyzer displays dew point temperature in °C, ppmv, and, optionally, in
ppmw over a 0.01 to 9999 range. The MMY 170 mounts either in a 19” rack or
a panel mount enclosure. Rack, panel mount or wall enclosure with 230/115
VAC supply.
Features:
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Cost-effective, flexible trace
moisture analyzer with dew point and optional ppmw display
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Dew point measurement range of -80°C to
+20°C with ±1°C accuracy
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Interference-free PFM signal transmission
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Compact, 7 pitch
(35 mm) module
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Standardized, programmable probe output
signal; with three
alarms
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原廠目錄下載
(PDF Format, 1 pages,
125 KB.)
Hygrotec
MMY170/DY75 Trace Moisture Analyzer |
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SPECIFICATIONS:
DY 75 Probe
Specifications
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/10(m
Weight: 830
grams (1.8 lbs.)
MMY 170 Analyzer
Specifications:
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:
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.)
Ordering Information
MMY170
1 2 3 4 5 6
1 Certificate
R Without
certificate
A Certified (Eex ia) IIC
2
Version
1 Dew point, ppmv, temperature with
compensation, Rackbus
communication
3 Additional moisture unit ppmv
for liquids
3 Power Supply
E 20 to 30 V DC
4 Analog
Output
2 0/4 to 20 mA, 0/2 to 10 V for
moisture
0/4 to 20 mA, 0/2 to 10 V for temperature
5 Alarm Relays
A Two dry alarm
contacts (SPDT)
6 System
Alarm
1 One dry alarm contact
(SPDT)
ORDERING INFORMATION DY 75
1 2 3 4
1
Certificate
R Standard (not certified)
A
Certified PTB, (Eex ia) IIC T6, Zone 0
N Natural gas probe, certified (Eex
ia) IIC T6, Zone 1
2 Process
Connection
G Thread G 1/2 (DIN ISO
228)
3 Housing
H
Harting plug-in connection
W PG-16 WADI connection
4 Sensor Protection
2
Protection tube with 10(m fine filter
ORDERING INFORMATION
1 Monorack Wall-Mounted
Housing
1 A 110/220 V AC 50/60 Hz
detachable
L 100/200 V AC 50/60 Hz detachable
D 24/48 V AC 50/60 Hz
detachable
E 24 V DC, without power unit
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微量水份分析儀
/ DewPro MMY170/DY57 
