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Home » Products » Dewpoint Sensors » Industrial Transmitter for Dew Point Measurement » Industrial Transmitter for Dew Point Measurement

Industrial Transmitter for Dew Point Measurement

Industrial Transmitter for Dew Point Measurement
Industrial Transmitter for Dew Point Measurement
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Product Code : EE35
Product Description

Exact dew point monitoring is increasingly playing a more important role in many industrial applications, such as drying processes, air pressure pipelines, etc. For these purposes the multifunctional EE35 Series offers the ideal features. The EE35 Series is based on a functional, user-friendly housing concept and on the proven polymer humidity sensors of the HC Series. A specially developed autocalibration process enables measurements in a measurement range of -60...60oC Td (-76...140oF Td), with a Td measurement accuracy of +2oC (+3.6oF). Two freely configurable and scaleable analogueoutputs are available for the two measurement values (Td, T). An optional hygrostat output, which can be set by means of a potentiometer, provides an alarm signal in a simple way when a threshold of the permitted dew point is exceeded. An optional display for the measurement values and the associated MIN/MAX values allows a quick overview of the current situation.

Auto calibration

Dew points in the range of -60...-20oC (-76...-4oF) at room temperatures correspond to relative humidity values of 0.08...5.37% RH. The measurement of such low humidity values is not possible with conventional capacitive measurement methods. For the EE35 Series, a special auto-calibration process is used to compensate for the usual drift effects and thus to achieve high accuracy measurements also at -60oC Td (-76oF Td).

Installation

In addition to the direct mounting of the dew point probe, a ball valve installation enables the mounting and removal of the probe without having to interrupt the running process.

Alarm Output

An optional alarm module with one relay output is available for control and alarm purposes. The setting of the Td threshold can be easily done with the potentiometer on the printed circuit board.

Integrated power supply

A power supply, integrated in the back module of the housing, can be ordered optionally (100...240V AC, 50/60Hz; ordering code V01). The power supply V01 is available for both polycarbonate and metal housing and comes standard with two plugs for supply and outputs to allow an easy connection.

Typical Applications :

  • Industrial processes
  • Monitoring of air pressure pipelines
  • Warehouses
  • Drying processes
  • Paper industries
  • Chemical industries

Features :

  • Measuring range -60...60oC Td (-76...140oF Td)
  • Accuracy of measurement +2oC Td (+3.6oF Td)
  • Traceable calibration alarm output for dew point
  • Auto-calibration
Technical Specification :

Humidity sensor

HC1000-400

Measuring range (below 0oC / 32oF the transmitter outputs frostpoint)

standard calibration: -40...60oC (-40...140oF)
special calibration: -60...60oC (-76...140oF)

Accuracy

+2oC (≤ + 3.6oF)

Response time t90

80 sec. -20oC → -40oC (-4oF → -40oF)
10 sec. -40oC → -20oC (-40oF → -4oF)

Temperature


Sensor

Pt1000 DIN A

Measuring range

0...60oC (32...140oF)

Accuracy of temperature measurement at 20°C (68°F)

+0.2oC (+0.36oF)

Sensitivity error at full scale

+0.1oC (+0.18oF)

Temperature dependence of electronics

< 0.005oC/oC

Outputs

Two freely selectable and scaleable analogue outputs
xx...yyoC T, Td/Tf / xx...yyoC respectively

0 - 5V
0 - 10V
4 - 20mA
0 - 20mA

General

Supply voltage

8...35V DC
12...30V AC (optional 100...240V AC, 50/60Hz)

Current consumption :
Voltage output
Current output

typ. 40mA, with autocalibration: 100mA
typ. 80mA, with autocalibration: 140mA

Pressure range

0...10bar (0...145psi)

Housing / protection class

PC or Al Si 9 Cu 3 / IP65; Nema 4

Cable gland

M16 x 1.5 (option: plug)cable Ø 4.5 - 10 mm (0.18 - 0.39")

Electrical connection

screw terminals up to max. 1.5mm² (AWG 16)

Sensor protection

stainless steel sintered filter

Working temperature range

Probe: -40...60oC (-40...140oF)
Electronic: -40...60oC (-40...140oF)
with LC display: -20...50oC (-4...122oF)
with alarm module: -40...60oC (-40...140oF)

Storage temperature range

-40...60oC (-40...140oF)

Electromagnetic compatibility according to

EN61326-1:1997 + note1:1998
FCC Part15 Class B ICES-003 Class B

Technical Data f or Options

Display

graphical LC display (128x32 pixels), with integrated push- buttons for selecting parameters Td or T and MIN/MAX functions

Alarm output for Td/Tf

- range: -60...40oC Td (-60...40oF Td) adjustable with the potentiometer on the printed circuit board
- 1 switch contact
- 250V AC/6A or 28V DC/6A


JUPITER INTEGRATED SENSOR SYSTEMS PVT. LTD.
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