GE DewPro MMY30 User manual

GE
Sensing
DewPro® MMY30
General Eastern Trace Moisture Transmitter
User’s Manual

GE
Sensing
DewPro®MMY30
General Eastern Trace Moisture Transmitter
User’s Manual
A40251540A
November 2005
DewPro®is a GE General Eastern product. GE General Eastern has joined other GE high-technology sensing
businesses under a new name—GE Sensing.

iii
November 2005
Warranty Each instrument manufactured by GE Infrastructure Sensing, Inc. is
warranted to be free from defects in material and workmanship.
Liability under this warranty is limited to restoring the instrument to
normal operation or replacing the instrument, at the sole discretion of
GE Infrastructure Sensing, Inc. Fuses and batteries are specifically
excluded from any liability. This warranty is effective from the date of
delivery to the original purchaser. If GE Infrastructure Sensing, Inc.
determines that the equipment was defective, the warranty period is:
•one year for general electronic failures of the instrument
•one year for mechanical failures of the sensor
If GE Infrastructure Sensing, Inc. determines that the equipment was
damaged by misuse, improper installation, the use of unauthorized
replacement parts, or operating conditions outside the guidelines
specified by GE Infrastructure Sensing, Inc., the repairs are not
covered under this warranty.
The warranties set forth herein are exclusive and are in lieu of
all other warranties whether statutory, express or implied
(including warranties of merchantability and fitness for a
particular purpose, and warranties arising from course of
dealing or usage or trade).
Return Policy If a GE Infrastructure Sensing, Inc. instrument malfunctions within the
warranty period, the following procedure must be completed:
1. Notify GE Infrastructure Sensing, Inc., giving full details of the
problem, and provide the model number and serial number of the
instrument. If the nature of the problem indicates the need for
factory service, GE Infrastructure Sensing, Inc. will issue a RETURN
AUTHORIZATION number (RA), and shipping instructions for the
return of the instrument to a service center will be provided.
2. If GE Infrastructure Sensing, Inc. instructs you to send your
instrument to a service center, it must be shipped prepaid to the
authorized repair station indicated in the shipping instructions.
3. Upon receipt, GE Infrastructure Sensing, Inc. will evaluate the
instrument to determine the cause of the malfunction.
Then, one of the following courses of action will then be taken:
•If the damage is covered under the terms of the warranty, the
instrument will be repaired at no cost to the owner and returned.
•If GE Infrastructure Sensing, Inc. determines that the damage is not
covered under the terms of the warranty, or if the warranty has
expired, an estimate for the cost of the repairs at standard rates
will be provided. Upon receipt of the owner’s approval to proceed,
the instrument will be repaired and returned.

v
November 2005
Table of Contents
Chapter 1: General System Information
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Product Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Optional Display/
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
4 to 20 mA Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Planar Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Chapter 2: Installation Guidelines
General Hints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Method I - Orifice at Outlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Pressure Dewpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Method II - Orifice at Inlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Method III - No Flow Restriction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Low Pressure Closed Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Method IV - Bypass Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Remote Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Chapter 3: Wiring Instructions
General Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Various Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Designing the Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Mounting in Normal Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mounting in Environments with Severe Electrical Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
EMI/RFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
General Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

November 2005
vi
Table of Contents (cont.)
Chapter 4: The Optional Display/User Interface (Option G)
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
DewPro with Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Replacing the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Description of the DewPro MMY30 Programming Matrix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Matrix Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Special Functions of the Push Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Functions of the Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Display and Output Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Special Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Chapter 5: Troubleshooting
Problems and Recommended Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Removing the Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Chapter 6: Technical Specifications
MMY30 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Sensing Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Measurement Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Recommended Recalibration Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Calibration Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Maximum Sensor Relative Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Air Bleed Off at 7 bar (100 psig). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Maximum Operating Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Helium Leak-Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Flow Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Wrench Width for Flow Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Moisture Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
European Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Optional Onboard Display with User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
EMI/RFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Optional Certifications/Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Appendix A: User Interface Matrix Input

Chapter 1

General System Information
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

General System Information 1-1
November 2005
Unpacking and
Inspection Upon receipt of the DewPro MMY30, examine the shipping carton
for broken or open packing, distortion, or any other evidence of
mishandling. If inspection indicates damage to the unit or any of its
components, notify the carrier (within 15 days of delivery) and
request an inspection.
Move the carton to a clean work area and unpack. The carton you
receive should contain:
•DewPro MMY30
•Installation and Operation Manual
•Calibration Certificate
Compare the last five numbers or letters on the model number (on the
product label shown in Figure 1-1 below) with the product structure
(see below) to ensure you have received everything you ordered.
Figure 1-1: DewPro MMY30
Product Structure Certification/Approvals:
RStandard (not certified)
AFM IS C1. I, II, III: Div. 1; Grps.A-G
B FM XP Cl.1, Div. 1; Grps. A-D
CFM Cl.1, Div. 2, Grps. A-D
Cl. II, III, Div. 1, Grps. E-G
SOther
Process Connection:
1½” MNPT (1/4” tube fitting if B, C or D is selected below)
2G ½ (6 mm tube fitting if B, C or D is selected below)
SOther

November 2005
1-2 General System Information
Product Structure (cont.) Orifice Configuration:
A Inlet: None; Outlet: Orifice, with ¼” FNPT
B Inlet: None; Outlet: Orifice, with (6 mm) ¼” tube fitting
C Inlet: None; Outlet: None, with (6 mm) ¼” tube fitting
D Inlet: Orifice; Outlet: None, with (6 mm) ¼” tube fitting
S Other
Enclosure Conduit:
1 M20 X 1.5 F with cable gland
2 M20 X 1.5 F with 1/2” FNPT adaptor
S Other
Output Configuration/Dewpoint Range:
A Td -90 °C to +10 °C (-130 °F to +50 °F), no display, error 22 mA
B Td -90 °C to +10 °C (-130 °F to +50 °F), no display, error Hold
C Td -90 °C to +10 °C (- 130 °F to +50 °F), no display, error 3.6 mA
D 0-100 ppmv1 bar, no display, error 22 mA
E 0-100 ppmv1 bar, no display, error Hold
F 0-100 ppmv1 bar, no display, error 3.6 mA
G With integral display/user interface
H With integral display/user interface, includes moisture units
Lbs/MMSCF, natural gas
S Other

General System Information 1-3
November 2005
Introduction
Unit Description The DewPro MMY30 trace moisture transmitter (shown in Figure
1-2 below) is a loop-powered dewpoint measuring device. The
transmitter includes a sensor element, a flow chamber, a weather-
proof enclosure, microprocessor electronics, and assorted fittings, all
in a compact assembly. In most cases, either the inlet or outlet port
includes an orifice to regulate the flow. The placement of this orifice
determines whether the dew point measurement is done at process
(line) pressure (outlet orifice), or at atmospheric pressure (inlet
orifice). A 2 micron sintered inlet filter prevents particles from
entering the device.
Optional Display/
User Interface
The optional display/user interface feature allows the DewPro to be
configured to the user's specifications. See Chapter 4 for more
information.
Figure 1-2: DewPro MMY30 Transmitter

November 2005
1-4 General System Information
Theory of Operation
4 to 20 mA Loop The DewPro MMY30 microprocessor controlled electronics operate
with a DC voltage supply from 12 to 28 VDC. At the nominal 24 V
DC supply, the maximum loop resistance is 600 Ohm. The signal is
represented by the 4 to 20 mA loop current and is directly
proportional to the dewpoint range in °C or °F. In the standard range,
4 mA corresponds to -90°C (-130°F) and 20 mA to +10°C (+50°F)
dewpoint temperature.The optional unit of measure is ppmvin the
standard range 0-100 ppmv.
Bypass In dryer applications, the moisture sensor performs best when
mounted in a bypass. The built-in bypass of the DewPro eliminates
costly hardware associated with traditional sampling methods. The
DewPro installs simply into the process with its G ½ or ½” MNPT
threaded connection.
Planar Sensor The heart of the MMY30 is the planar sensor element. It incorporates
a superior aluminum oxide sensor that provides longer calibration
stability, excellent corrosion resistance, and improved speed of
response. The sensor, mounted on a ceramic substrate, also has a
reduced temperature coefficient.
Calibration Each DewPro is factory calibrated against precise NIST certified
moisture references and has an accuracy of ±2°C dewpoint at 25°C
temperature. For field validation, GE Sensing offers a unique
validation device. The MMY245 field validator connects to the
DewPro on site and offers a one-point or two-point correction.

General System Information 1-5
November 2005
Dimensions Choose a mounting location which allows enough clearance for the
use of tools and for connection of the field validator. Figure 1-3
shows the dimensions of the standard DewPro, and Figure 1-4 shows
the DewPro with the optional display/user interface.
Figure 1-3: Standard DewPro Dimensions
Figure 1-4: Dimensions for DewPro with Optional Display/
User Interface

Chapter 2

Installation Guidelines
General Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Method I - Orifice at Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Method II - Orifice at Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Method III - No Flow Restriction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Method IV - Bypass Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Installation Guidelines 2-1
November 2005
General Hints Caution!
Before installation, please read all instructions. The DewPro
is designed to be mounted to pressurized systems. Take all
necessary precautions when mounting or
removing the DewPro.
•Mount the DewPro vertically whenever possible to prevent
particles or condensation from entering the bypass.
•Mount the DewPro after a shut-off valve to depressurize the
DewPro when removing it from the process pipe in case of
maintenance or field compensation.
Caution!
Do not over-tighten! The outlet fitting is connected to the
bypass block with a G 1/4 straight thread (with gasket)
which will seal if the fitting is simply hand-tightened. When
connecting an external device, counter the fitting with a
second wrench when tightening. If the inlet is equipped
with a G 1/2 straight thread and gasket, the seal is
obtained by simply hand-tightening the DewPro.
Caution!
If you are installing the DewPro into a pressurized system
(up to 10 bar), depressurize the system before installing or
removing the sensor. Pressurized systems require a
stainless steel compression fitting.

November 2005
2-2 Installation Guidelines
Method I - Orifice at
Outlet Figure 2-1 below illustrates installation at the orifice at the outlet.
Figure 2-1: DewPro Installation at Orifice at Outlet
Pressure Dewpoint Air dryers producing general instrument air are typically specified
with a pressure dewpoint rating. The majority of dryers operate in a
dewpoint range between -40°C and -75°C (-40°F and -100°F). A
pressure of 7 to 8 bar (= 100 psig) is very common.
Air Flow The DewPro is designed to measure the pressure dewpoint. By
restricting the flow at the outlet of the integral bypass with an orifice,
the sensor monitors the dewpoint at process pressure. The bleed-off
air to the atmosphere at 7 to 8 bar (100 psig), is approximately 70 cc/
min. (28 L/h or =1.0 SCFH cfh). For smaller sized dryers of 3m3/
min.(=100 cfm) the air loss is only 0.002% of the air production and
is negligible. Despite the very low flow rate through the bypass as
shown, the air sample in the DewPro bypass chamber is refreshed
every second due to the small volume design. As a result, the sensor
sees changes in moisture instantaneously. Due to the low flow rate,
the flow velocity is also very low at <0.01 m/sec. (=34 m/h).The low
flow velocity prevents the inlet filter from clogging since there is not
enough kinetic energy to push dust particles into the filter.

Installation Guidelines 2-3
November 2005
Method II - Orifice at
Inlet Figure 2-2 below shows installation at the orifice at the inlet.
Figure 2-2: DewPro Installation at Orifice at Inlet
Method III - No Flow
Restriction Figure 2-3 below illustrates an installation with no flow restrictions.
Figure 2-3: DewPro Installation with No Flow Restriction
Low Pressure Closed Loop Closed loop drying systems, which are very common with hopper
dryers in the plastics industry, operate at very low pressures of a few
inches of water. The air passing through the DewPro bypass is fed
back to the main stream after a pressure drop in the main line. In this
configuration, the DewPro bypass has no flow restriction at the inlet
and outlet.The outlet is equipped with a 6 mm (l/4”) tube fitting to
allow simple connection of the loop tubing.

November 2005
2-4 Installation Guidelines
Method IV - Bypass
Ins ta l l ation
Figure 2-4: Remote Wall Mount Bypass
Remote Installation In some cases there may not be enough room to install the DewPro
directly to the process pipe. The tube connection at the inlet allows
mounting the DewPro at a remote location. The functions of Methods
I-III can be selected.The DewPro can be mounted on a wall or a plate
using the optional wall/pipe mounting bracket, as shown in Figure 2-5
below.
Figure 2-5: DewPro with Various Mounting Brackets
6.50 in.
(165 mm) 2.76 in.
(70 mm)
4.45 in.
(113 mm)
3.23 in.
(82 mm)
4.45 in.
(113 mm)
2.76 in.
(70 mm)
0.79 in.
(20 mm)
4.45 in.
(113 mm)
Panel Mounting Vertical Pipe Mounting
Horizontal Pipe Mounting Horizontal Pipe Mounting

Chapter 3

Wiring Instructions
General Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Mounting in Normal Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mounting in Environments with Severe Electrical Noise. . . . . . . . . . . . . 3-2
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
General Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3