Super Systems DPL4000 User Manual

OPERATIONS MANUAL

DPL4000

Portable Low Range Dew Point Analyzer

7205 Edington Drive / Cincinnati, OH 45249 / Tel [phone] / Fax [phone]

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Product Description:

This device is used to measure very low dew points with high accuracy and excellent long­term stability. It can be used across a wide range of temperatures and pressures, and it
measures dew point in a variety of non-corrosive gases including Nitrogen, Argon, Hydrogen,
and Sulfur Hexafluoride (SF6).

General Specifications:

Total Measurement Range: -148°F to +32°F (-100°C to 0°C)
Optimal Measurement Range: -112°F to -22°F (-80°C to -30°C)
Accuracy (Within Optimal Range): +/- 3.6°F (+/- 2°C)
Accuracy (Outside Optimal Range): +/- 5.4°F (+/- 3°C)
Operating Temperature Range: -40°F to +140°F (-40°C to +60°C)
Operating Pressure Range: 0-725 psi / 0-50 bar
Operating Humidity: Non-Condensing
Sensor Housing Classification: IP65 – NEMA4 (AISI316L)
Display Housing Classification: IP54
Display Weight: 400 grams
Power: Rechargeable NIMH Battery (included) or 4 “AA” Batteries
Battery Recharging Time: Approximately 4 hours
Battery Charger Input Requirements 110-240 VAC/ 47-63Hz / 400mA
Run Time on Battery Power: 48 Hours – Continuous use / Up to 30 days - Data logging only
Output Units: Dew Point /Frost Point, ppm & ppb (by volume), ppm (by weight)
Languages Supported: Nine Possible Languages (See “Language” section)
Data Logging Capacity: 2700 points, user-selectable measurement interval
Data Logging Interval Options: 1s, 5s, 15s, 30s, 1min, 5min, 15min, 30min, 1h, 3h, 12h
Logging Duration Options: 1min, 5min, 15min, 30min, 1h, 3h, 12h, 24h, 7d, 31d, Memory Full

Sensor Technology:

The dew point measurement is based on a capacitive thin film polymer. Water molecules in
the surrounding air or gas diffuse into the polymer layer through the permeable upper
electrode, which changes the capacitance of the sensor. Changes in capacitance can be
directly correlated to the quantity of water molecules in the gas.

Special Features:

The dew point sensor in the DPL4000 performs two functions that provide increased accuracy
and response time.

• Automatic Calibration – The sensor warms itself and performs an offset (zero point)

correction. This is performed automatically at start up and after every 45 minutes of
continuous use.

• Sensor Purge – This function evaporates all excess moisture molecules from the sensor to

significantly increase the response time when the sensor goes from a wet condition to a
dry condition. This is performed automatically at startup and after every 24 hours of
continuous use. A Sensor Purge will also be initiated automatically when the sensor
detects a large wet-to-dry environmental change.

Getting Started:

To begin taking measurements with the DPL4000:

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• Connect a ¼” Male NPT quick-disconnect fitting (supplied) to the gas source. This fitting

will not allow the gas to flow until the mating quick-disconnect fitting has been
connected.

• Attach the sensor sampling assembly to the gas source using the quick disconnect fitting

at the base.

• Start the flow of gas at approximately 10 CFH. Loosing and tightening the knob on the

front of the flow meter will adjust the flow.

• Connect the small end of the Sensor Communication Cable to the port on the back of the

sensor that is labeled “II”. This will be the port without the rubber boot.

• Connect the other end of the cable to the handheld display using either one of the ports on

the bottom.

• Turn on the power on the handheld display unit.

• If desired, change the environmental settings (selecting “NO” will use the default values).

• The instrument will need to go through some diagnostic tests including an automatic

calibration and one or more sensor purges. During this time, the readings on the display
will either indicate all dashes, or a dew point value that does not move. This condition
will exist for between 5 and 15 minutes, depending on the dew point of the measured gas
and the dew point that the sensor was exposed to prior to installation.

DPL4000 Components:

5

3, 6, 7, 9, 10

1

4

2

11

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1. Handheld Display / Data Logger

2. Sensor Assembly with Flow Meter

3. Sensor Communication Cable

4. Battery Charger

5. ¼” Male NPT Quick Disconnect Fittings with Shutoff (2)

6. Software CD

7. USB Cable for Downloading Data

8. Operations Manual

9. Plug for Unused Port on Handheld Display

10. Contact Plate for using “AA” batteries

11. Carrying Case

Installing and Removing the Battery Pack

The DPL4000 is supplied with a rechargeable battery pack. It is also
possible to power the instrument using four (4) “AA” 1.5V alkaline
batteries. To use the alkaline batteries, you will need to install the
supplied metal contact plate at the base of the battery housing.

1. Unscrew the back plate of the indicator.

2. Remove the old batteries. If a rechargeable battery is installed,
remove the black connector by gently pulling up on the wires.

Figure 1 Installing the Battery Pack

3. Connect the black connector of the new rechargeable battery
pack. Make sure the red and black wires are on the upper edge
of the connector. Do not push the connector with any conducting
material. If using alkaline batteries, the metal contact plate will
need to be inserted if it is not already present.

4. Close the back plate, and tighten the screw.

5. Charge the battery before use.

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Charging the Battery Pack

1. Plug the charger into the top of the indicator (located under the

rubber cap).

2. Connect the charger to a wall socket. A dynamic battery symbol

will be visible in the top left corner of the display.

3. When the battery symbol does not change, the battery pack is

fully charged.

4. Disconnect the charger.

The duration of recharging is typically 4 hours.

Buttons and Navigation

To turn on the device, press the Power On/Off button. To open
menus, press an arrow button and then press the shortcut buttons. To
activate a function shown above the shortcut button, press the shortcut
button. To navigate in the menus, press arrow buttons.

0403-033

Figure 2 Buttons

The following numbers refer to Figure 2 above.

1 = Shortcut buttons
2 = Arrow buttons
3 = Power on/off button

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