General Eastern MMY2650 Data sheet

GE

Measurement & Control Solutions

HygroGuard MMY2650

General Eastern
Trace Moisture Analyzer

Features

• Optional analog input for pressure compensation
or analog transmitter (voltage or current)

• One, two or three analog outputs; 0/4 to 20 mA or
0/1 to 5 VDC

• Three congurable relay outputs plus system
alarm relay

• Two line LCD and ve push button user interface

• RS485 serial output

• Full complement of pre-programmed moisture
measurement units

The HygroGuard MMY2650 is a moisture analyzer
designed to operate with the GE DY5 or DY55
planar gold aluminum oxide dew point sensor. The
unit oers an optional input that can be used for
pressure compensation, an external temperature
probe, or other analog transmitter. The standard
product comes with one current output (0/4 to
20 mA), a system alarm relay, and three adjustable
relays, all with single-pole double-throw 2.5 A
contacts, selectable failsafe mode, and adjustable
hysteresis. One or two additional analog outputs are

available. A display and ve push buttons from the
user interface for data display, unit selection, output
ranges, alarm setpoints and special functions.

The HygroGuard MMY2650 is available in both wall
mount and panel mount congurations. When used
with the DY5 dew point probe, the system is capable
of providing dew point readings in the range of

-112°F to 68°F (-80°C to 20°C) dew point over a
temperature range of -4°F to 140°F (-20°C to 60°C).
When congured with approved Zener Barriers the
model DY5xx probe is approved as intrinsically safe
for use in hazardous (classied) locations.

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MMY2650 Specications

Standard Inputs

Two (moisture and temperature) from DY5 probe,
connects up to two DY55 probes.

Optional Input

For pressure transducer providing live pressure
compensation or monitoring one other analog
transmitter. Signals: 0/1 to 5 V, 0/4 to 20 mA loop
powered, or 4 to 20 mA/source.

Moisture Probe

Interconnects with DY5 probe (US) or DY55 (European)
probe

User Interface

Five push-buttons, easy conguration using a matrix

Display

Alphanumeric LCD displays measured value with units
of measure, matrix location programming instructions,
error indication and error codes; user selectable
scanning feature alternating the display every ve
seconds through active channels (three maximum)

European Compliance

Complies with EMC directive 2004/108/EC and
LVD 2006/95/EC

Digital Outputs

Four relays (SPDT dry contacts rated at 250 VAC, 2.5 A,
PCAC = 300 VA, cos phi > 0.7, PDC 100 W, 100 VDC). One
relay is system alarm. Three relays are congurable to any
input; failsafe mode: energized/de-energized selectable.
programmable hysteresis; high/low alarm selectable

Serial Output

RS485, streaming data, update rate once per second

Program

Non-volatile memory

Units Of Measure (Moisture)

Dew point °C, °F, ppmv (requires pressure measurement
or programmed constant), lb/MMSCF, g/m3, g/kg,
vapor pressure in hPa, or mmHg, %RH, process
pressure calculated dew point °C, °F (needs pressure
measurement using the optional input for live calculation
or pressure constant)

Units of Measure (DewPoint)

°F, °C, instrument range -202°F to 86°F (-130°C to 30°C)

Units of Measure (Pressure)

Optional input used with a pressure transducer to
selected unit; bara, barg, psia, psig, hPaa, hPag

Analog Outputs

Three, assigned to input 1, 2 and 3, 0/4 to 20 mA, load
resistance <500 ohms, 0/1 to 5 V, source resistance
249 ohms, user selectable range, user selectable
condition in case of error to 110%, -10% or hold at last
measured value

Data

EEPROM

Operating/Storage Temperature

14°F to 122°F (-10°C to 50°C)

Supply Voltage

90 to 240 VAC, optional 18 to 36 VDC

Power Consumption

5.8 VA for line voltage units, 2.2 W for DC powered units

Enclosures

Wall Mount: Type 12, Type 4X, Type 7, and Panel Mount.

Cable Entry

Metric cable gland M12, 2x M16, M20

Weight

2.2 lb (1 kg)

1/2 FNPT

conduit

connection

4.5 in (114 mm) 1 in (25 mm) 4.5 in (114 mm)

DY502 probe dimensions

10 in (254 mm)

0.5 in (13 mm)

Operating Pressure

0 to 1750 psig (0 to 120 bar, 12 MPa)

Recommended Flow Rate

1 to 5 SCFH (in a bypass mode)

Gas Flow Velocity

• 165 ft/s (50.0 m/s) at 14.7 psig (1 bar)

• 16.5 ft/s (5.0 m/s) at 145 psig (10 bar)

• 1.65 ft/s (0.5 m/s) at 1450 psig (100 bar)

0.5 in (13 mm)

1 in

(25 mm)

0.5 in

(13 mm)

DY507 probe dimensions

3.5 in (89 mm) 3.8 in (97 mm)

7.8 in (198 mm)

1 in (25 mm)

DY5xx (US) Moisture Probe

Sensor

Planar gold/aluminum oxide capacitance

Calibration Range

-112°F to 68°F (-80°C to 20°C)

Recommended Recalibration Cycle

Six to 12 months depending on the application

Accuracy

±3.6°F (±2°C) in the standard calibration range at 77°F
(25°C)

Calibration Data

Stored in EEPROM of analyzer DewPro MMY2650

Probe Tube

1/2 in (12.7 mm) diameter, 316 stainless steel

Mounting Adapter

1/2 in tube x 1/2 in NPTM, 316 stainless steel compression
tting standard, others available

Cable Connection

Rugged multi-pin connector; screw terminal in explosion­proof junction box with 1/2 in NPTF conduit connection

Probe Cable

Four-conductor, AWG 22, stranded, shielded to maintain
EMI/RFI/ESD resistance, up to 1000 ft

Weight

1 lb (.45 kg)

1.67 in

(144 mm)

.71 in

(18 mm)

1.18 in

(30 mm)

G 1/2 DIN

ISO 228

DY55 probe dimensions

2.48 in (63 mm)

1.14 in

(29 mm)

.72 in

(18.2 mm)

Standard Operating Temperature

-4°F to 140°F (-20°C to 60°C)

Maximum Relative Humidity

50% at dew point > 32°F (0°C )

Temperature Sensor

Zener device, range -94°F to 158°F (-70°C to 70°C)

Signal Transmission

Frequency, generated by probe electronics

DY55 (European) Moisture Probe

Sensor

Planar gold/aluminum oxide, capacitance principle

Calibration Range

-112°F to 68°F (-80°C to 20°C) dew point temperature

Recommended Recalibration Cycle

Six to 12 months, depending on the application and
required accuracy

Accuracy

±3.6°F (±2°C) at 77°F (25°C)

Maximum Relative Humidity

50% at dew point > 32°F (0°C )

Ambient and Storage Temperature

-76°F to 122°F (-60°C to 50°C)

Standard Operating Temperature

-4°F to 140°F (-20°C to 60°C)

Maximum Operating Pressure

5075 psig (350 bar)

8.23 in

(209 mm)

5.67 in

(144 mm)

Helium Leak Rate

> 10-7 mbar 1/s

Gas Flow Velocity

• 165 ft/s (50.0 m/s) at 14.7 psig (1 bar)

• 16.5 ft/s (5.0 m/s) at 145 psig (10 bar)

• 1.65 ft/s (0.5 m/s) at 1450 psig (100 bar)

Signal Transmission

Standardized pulse frequency modulation (PFM) via
two-wire cable, up to 3280 ft (1000 m) length.

Probe Mounting Adapter

Stainless steel 1.4571 with G 1/2 thread (DIN/ISO 228) and
O-ring seal out of uor caoutchouc (SMK)

Rating

IP 40

Torque When Tightening

50 Nm

Wrench Width

1.2 in (30 mm)

HygroGuard MMY2650 panel mount enclosure dimensions

MMY2650 Panel Mount Enclosure

Material

Black anodized aluminum

Dimensions

5.67 in x 5.67 in (144 mm x 144 mm)

Depth

• Maximum protrusion at the rear of the panel: 8.23 in
(209 mm)

• Maximum protrusion at the front of the panel: 0.32 in
(8.25 mm) with bezel

• Maximum protrusion at the front of the panel with door:

1.26 in (32 mm)

Panel Cutout

5.43 in x 5.43 in (138 mm x 138mm)

Wiring

Same conguration as the wall mount unit, wired in the rear

Protection

Protective cap with 10 mm lter

Weight

0.5 lb (250 g)

Mounting

Insert from front into the panel, install the clamps, tighten
the clamp screws from the rear against the panel using a
long screwdriver

Front Panel

Overlay with membrane buttons integrated LEDs and
clear window for display

www.gesensinginspection.com

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920-068C

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