Edgetech 1500 Operator's Manual

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Model 1500

Portable Dew Point Monitor

OPERATORS MANUAL

399 River Road, Hudson, MA 01749 www.edgetechinstruments.com
508-263-5900 fax: [phone] [e-mail]

TABLE OF CONTENTS

1.0 GENERAL DESCRIPTION

2.0 SAMPLE CONNECTIONS

2.1 SAMPLE CONNECTIONS

2.2 ALARM RELAY CONNECTIONS

2.3 OUTPUT CONNECTIONS

3.0 FUNCTIONAL DESCRIPTION

3.1 DISPLAY

3.2 MABC BUTTON

3.3 CLEAN MIRRO RELAY

3.4 FLOW CONTROL VALVE

3.5 ALARM RELAY OUTPUT

Model 1500
Dew Point Monitor

3.6 ANALOG OUTPUT

3.7 DISPLAY “SCAN” BUTTON

4.0 SETUP

4.1 ALARM SET POINTS

4.2 ABC INTERVAL

5.0 MAINTENANCE

5.1 ROUTINE MAINTENANCE

5.2 MIRROR CLEANING SCHEDULE

5.3 MIRROR CLEANING PROCEDURE

6.0 SPECIFICATIONS

7.0 APPENDICES

ROTARY VANE VACUUM PUMP (OPTIONAL)
PRESSURE TRANSDUCER (OPTIONAL)
EDGETECH INSTRUMENTS INC. DEW POINT HYGROMETER SAMPLING
BASIC HUMIDITY DEFINITIONS
BATTERY MATERIAL SAFTY DATA SHEET (FOR -C1 ONLY)

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Model 1500
Dew Point Monitor

Edgetech Instruments Inc.'s Commitment to Quality

To Our Customers:
Thank you for purchasing one of our products. At Edgetech Instruments Inc., it is our policy

to provide cost-effective products and support services that meet or exceed your
requirements, to deliver them on time, and to continuously look for ways to improve both.
We all take pride in the products we manufacture.

We want you to be entirely satisfied with your instrument. The information in this manual will
get you started. It tells you what you need to get your equipment up and running, and
introduces its many features.

We always enjoy hearing from the people who use our products. Your experience with our
products is an invaluable source of information that we can use to continuously improve
what we manufacture. We encourage you to contact or visit us to discuss any issues
whatsoever that relate to our products or your application.

The Employees of Edgetech Instruments Inc.

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Model 1500
Dew Point Monitor

1.0 GENERAL DESCRIPTION

The Edgetech Instruments Inc. Model 1500 Battery Powered DPM is an integrated system
including a microprocessor-based instrument, a chilled mirror dew point sensor, a sample flow
meter and associated tubing and fittings.

The Standard Instrument includes: (Other options available)

 An eight-digit, alphanumeric, LED display to report the dew point and system status.
 Periodic sensor balance check.
 Programmable Alarm Set Point with visual and contact closure alarm indications.
 Two SPDT (Form C) Alarm Relay.

 4 - 20mA analog output.

FIGURE 1.1 CASE DIMENTIONS

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Model 1500
Dew Point Monitor

2.0 SAMPLE CONNECTIONS

2.1 SAMPLE CONNECTIONS

The sample may be brought to the instrument with ¼" copper, stainless steel, or plastic tubing
and terminated in a ¼" female fitting.
Connect the sample supply line to the ¼" tubing fitting located on the panel (Figure 2.2).

NOTE: The maximum inlet pressure is 150 PSIG.

Figure 2-2.0 Drawing Model 1500-C1 & Model 1500-C2
Figure 2-2.1 Drawing Model 1500-C1-Sx “underneath”
Figure 2-2.2 Drawing Model 1500-C1-DsX “Insertion Probe”

2.4 ALARM RELAY CONNECTIONS

When the programmed Alarm Set Point conditions are meet, the alarm relay will be energized.
Before connecting any device to the Alarm Relay contacts, check the contact ratings in the
Specifications section.

1. Connect one of the signal wires to the CA (Center Arm) and the other wire to either the NO
(Normally Open) or NC (Normally Closed) terminal. Which ever is preferred by the installer.
(See figure 2.3)

2.5 ANALOG OUTPUT CONNECTIONS

“4-20mA out”. All connection can be made at terminal strip. (See figure 2.3)

1. Connect the high signal wire to the “+” terminal and the low side to the “-“ terminal.

2.6 SERIAL PORT OUTPUT CONNECTIONS (Optional)

1. “RS232 out”. (See figure 2.3)

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Model 1500
Dew Point Monitor

FIGURE 2-2.0 TOP & BELOW PANEL LAYOUT

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