MMT330 Moisture and Temperature
Transmitter Series for Oil
The display shows measurement trends,
real time data and history.
www.vaisala.com
The MMT330 transmitter family offers a range of solutions for demanding moisture
in oil measurements.
Features/Benefits
Continuous on-line
▪
measurement of moisture in oil
Ball valve installation – no need
▪
to shut down the process
Incorporates Vaisala HUMICAP®
▪
Sensor – more than 30 years of
field performance
Ten years of experience in
▪
measuring moisture in oil
Excellent long-term stability
▪
Easy to calibrate and maintain
▪
in the field - Compatible with
Vaisala HUMICAP® Hand-Held
Moisture for Oil Meter MM70
NIST traceable calibration
▪
(certificate included)
Analog outputs, WLAN/LAN
▪
The Vaisala HUMICAP® Moisture
and Temperature Transmitter Series
for Oil MMT330 enables fast and
reliable detection of moisture in oil.
The MMT330 can be used in on-line
moisture monitoring and as a control
device, allowing separators and
oil driers to be started only when
needed.
Proper monitoring saves both oil and
the environment. With the MMT330
it is easy and economical to monitor
the changes of moisture in oil.
Reliable Vaisala
HUMICAP® technology
The MMT330 incorporates the latest
generation of the Vaisala HUMICAP
Sensor, which is the result of ten
years of eld experience. It was
developed for demanding moisture
measurement in liquid hydrocarbons.
The sensor's excellent chemical
tolerance provides accurate and
reliable measurement over a wide
measurement range.
For diverse applications
and demanding
conditions
Because of the variety of probes, the
transmitter can be used in lubrication
systems, hydraulic systems, and
transformers.
Indicates the margin to
water saturation
The MMT330 measures moisture in
®
oil in terms of the water activity (aw)
and temperature (T). Water activity
indicates directly whether there is
a risk of free water formation. The
measurement is also independent of
oil type and age.
Water content as ppm
conversion
In addition to water activity, the
MMT330 can output ppm, the average
mass concentration of water in oil.
Vaisala has this conversion readily
availabe for mineral transformer oil.
For other oils, the oil specic
conversion coefcients can be
programmed to the transmitter if the
water solubility of the oil is known.
Graphical measurement
trend and historical
display
The MMT330 can be ordered with a
large numerical and graphical display
with a multilingual menu. It allows
the user to monitor operational data,
measurement trends and up to 1-year
measurement history. The optional
data logger with real-time clock
makes it possible to generate over
four years of measured history, and
zoom in on any desired time or time
frame.
The display alarm allows tracking
of any measured parameter, with a
freely congurable low and high limit.
Data collection and
(wireless) transfer to PC
The recorded measurement data
can be viewed on the display or
transferred to a PC with Microsoft
Windows
can also be connected to a network
with an optional (W)LAN interface,
which enables a (wireless) Ethernet
connection.
®
software. The transmitter
Versatile outputs and
easy installation
The MMT330 provides up to three
analog outputs. Galvanic isolation of
supply power and analog outputs is
also available. For serial interface the
USB connection, RS232 and RS485
The Vaisala HUMICAP® Hand-Held
Moisture for Oil Meter MM70 is
designed for field checking MMT330
transmitters.
can be used. In addition, alarm relay
option is available.
The MMT330 has several options for
transmitter mounting. Transmitters
are delivered pre-congured with all
settings installation ready.
The MMT332 probe is installed
97 (3.82)
65.5 (2.58) 7 (0.28)
35 (1.38)
Ø 12 (0.47)
9 (0.35)
M6
45°
Ø 36 (1.42)
16 (0.63)
77 (3.03)
33 (1.30)
NPT1/2"
ISO 3/8" or
Ø 12 (0.47)
Hex 22m
(0.87)
226/448 (8.90/17.6)
188/410 (7.40/16.1)
35 (1.37)
14 (0.55)
Ø 13.5 (0.53)
35 - 157/379(1.37 - 6.2/14.9)
Ø 12 (0.47)
R1/2" ISO7/1
using a flange. It is for high pressure
applications.
Installation options
MMT332 For High Pressure
Installations
Pressure range 0 ... 250 bar /
0 ... 3625 psia
Probe diameter 12 mm / 0.5 inch
Installation
Flange 36 mm / 1.4 inch
Temperature
Measurement range -40 ... +180 °C
(-40 ... 356 °F)
Dimensions
Dimensions in mm (inches)
The MMT337 probe, with optional
Swagelok connector, is ideal for tight
spaces with a thread connection. The
small probe is designed for integrating
into confined spaces with small
diameter lines.
The MMT338 is ideal for installations
in pressurized processes where the
probe needs to be removed while the
process is running. The probe depth is
adjustable.
Installation options
MMT337 with Small Sized Probe
Pressure range 0 ... 10 bar / 0 ... 145 psia
Probe diameter 12 mm / 0.5 inch
Installation
Fitting Body R 3/8" ISO
Fitting Body 1/2" ISO
Fitting Body NPT 1/2"
Temperature
Measurement range -40 ... +180 °C
(-40 ... 356 °F)
Installation options
MMT338 with Probe for Pipeline
Installations
Pressure range with ball valve
0 ... 40 bar / 0 ... 580 psia
up to 120 °C (248 °F) and 40 bar
Adjustable length 35 ... 157/379 mm /
1.37 ... 6.2 /14.9 inch
Installation
Fitting Body R1/2" ISO
Fitting Body NPT 1/2"
Ball Valve Set BALLVALVE-1
Sampling Cell DMT242SC2
Temperature
Measurement range -40 ... +180 °C
(-40 ... 356 °F)
Dimensions
Dimensions in mm (inches)
Dimensions
Dimensions in mm (inches)
Technical data
Measured values
WATER ACTIVITY
Measurement range a
w
0 ... 1
Accuracy (including nonlinearity, hysteresis and repeatability)
0 ... 0.9 ±0.02
0.9 ... 1.0 ±0.03
Response time (90 %) at +20 °C in still oil
(with stainless steel filter) 10 min.
Sensor HUMICAP
Performance
TEMPERATURE
Measurement range
MMT332 -40 ... +180 °C (-40 ... +356 °F)
MMT337 -40 ... +180 °C (-40 ... +356 °F)
MMT338 -40 ... +180 °C (-40 ... +356 °F)
Accuracy at +20 °C (+68 °F) ± 0.2 °C (0.36 °F)
Operating environment
Operating temperature
for probes same as measurement ranges
for transmitter body -40 ... +60 °C (-40 ... +140 °F)
with display 0 ... +60 °C (+32 ... +140 °F)
Pressure range for probes See probe specifications
Complies with EMC standard EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC requirements;
Industrial environment.
Max wire size 0.5 mm2 (AWG 20) stranded wires recommended
Digital outputs RS-232, RS-485 (optional)
Service connection RS-232, USB
Relay outputs 0.5 A, 250 VAC, SPDT, Potential Free (optional)
Ethernet interface (optional)
Supported standards 10/100Base-T
Connector RJ45
Protocols Telnet
®
WLAN interface (optional)
Supported standards 802.11b
Antenna connector type RP-SMA
Protocols Telnet
Security WEP 64/128,WPA
Authentication / Encryption
Open / no encryption
Open / WEP
WPA Pre shared key / TKIP
WPA Pre shared key / CCMP (a.k.a. WPA2)
Optional data logger with real-time clock
Logged parameters max. three with trend/min/max values
Logging interval 10 sec (fixed)
Max. logging period 4 years 5 months
Logged points 13,7 million points per parameter
Battery lifetime min. 5 years
Display LCD with backlight, graphic
trend display of any parameter
Display menu languages English, Chinese, Spanish, German,
French, Japanese, Russian, Swedish,
Finnish
Inputs and outputs
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC 50/60 Hz
Power consumption @ 20 °C (U
RS-232 max 25 mA
2 x 0...1V / 0...5V / 0...10V max 25 mA
U
out
2 x 0...20 mA max 60 mA
I
out
display and backlight + 20 mA
Analog outputs (2 standard, 3rd optional)
current output 0 ... 20 mA, 4 ... 20 mA
voltage output 0 ... 1 V, 0 ... 5 V, 0 ... 10 V
Accuracy of analog outputs at 20 °C ± 0.05 % full scale
Temperature dependence of the
analog outputs ± 0.005 %/°C full scale
External loads
current ouputs R
0 ... 1V output R
0 ... 5V and 0 ... 10V outputs R
24VDC)
in
< 500 ohm
L
> 2 kohm
L
> 10 kohm
L
Mechanics
Cable bushing M20x1.5 for cable diameter 8 ... 11mm/0.31 ... 0.43”
Conduit fitting 1/2”NPT
Interface cable connector (optional) M12 series 8 pin (male)
option 1 with plug (female) with 5 m / 16.4 ft black cable
option 2 with plug (female) with screw terminals
USB-RJ45 Serial Connection Cable
(incl. Mi70 Link software)
Probe cable diameter 5.5 mm
Probe cable lengths 2 m, 5 m or 10 m
Housing material G-AlSi 10 Mg (DIN 1725)
Housing classification IP 65 (NEMA 4X)
219685
Mounting options
169 (6.65)
183 (7.20)
116 (4.57)
Ø 7 (0.28)
96 (3.78)
77 (3.03)
71 (2.80)
Dimensions
Dimensions in mm (inches)
Mounting with Wall
Mounting with DIN Rail
Mounting Kit
Pole Installation with Installation
Kit for Pole or Pipeline
HUMICAP® is a registered trademark of Vaisala.
Installation Kit
Mounting Rain Shield
with Installation Kit
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
TYPE A PPROVED PRODUCT
CERTI FICATE NO.: A-11440
Ref. B210953EN-A ©Vaisala 2010
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
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