E+E EE354 Specifications

EE354

Miniature Dew Point Transmitter

down to -20 °C Td (-4 °F Td)

The EE354 was developed for monitoring dew point down to -20 °C Td (-4 °F Td). The high measurement accuracy of ±1 °C Td (±1.8 °F Td) in the typical working range of a refrigeration dryer makes the EE354 the ideal solution for OEM manufacturers. Integration into the measurement task is considerably simplified thanks to its highly compact design and exceptional robust stainless steel housing. The measurement values are issued on an analog 4-20 mA and a digital Modbus RTU output. Furthermore, excellent long-term stability and temperature compensation across the entire measurement range are important features of the EE354. Using the free EE-PCS configuration software and the Modbus USB converter (available as an accessory), the scaling of the analog output can be modified. This also permits one and two-point adjustments by the user.

Typical Applications Features

EE354

Compressed air monitoring Refrigeration dryer

Measurement range -20...50 °C Td (-4...122 °F Td)

Accuracy ±1 °C (±1.8 °F) for refrigerant dryers

MODBUS RTU digital interface

Pressure-tight up to 80 bar

Technical Data

Measured Values

Dew point (Td) Sensor HC1000

Measurement range -20...50 °C Td (-4...122 °F Td) Accuracy at 20 °C1)

Response time t

at 20 °C < 30 sec.

Dew point [°C Td]

-10

-20

-10

±1 °C

±1.8 °F

203030

Gas temperature [°C]

±2 °C

±3.6 °F

±3 °C / ±5.4 °F

405050

Output

Analog output (scalable) 4 - 20 mA (3-wire technology) R

Maximum adjustable scaling -40...80 °C Td (-40...176 °F Td) Digital interface MODBUS RTU

< 500 Ohm

Temperature dependence ±0.005 % of the measuring span / °C

General

Supply voltage 10*)...28 V DC Power consumption at 24 V DC <40 mA Pressure range of use 0...80 bar (0...1160 psi) Housing / protection rating Stainless steel 1.4404 (AISI 316L) / IP65 Electrical connection Sensor protection Stainless steel sinter filter Temperature / humidity operating range -40...60 °C (-40...140 °F) / 0...100 % RH Storage temperature range -40...60 °C (-40...140 °F) Electromagnetic compatibility in accordance with EN61326-1 EN61326-2-3

Industrial environment

1) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2 x standard deviation). The accuracy was calculated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).

2) Flange receptacle for self assembly included in scope of supply.

M12x1 5-pin plug

10V+0.02*R

Output 4...20 mA

(1160 psi)

110

v1.5 / Modification rights reserved

EE354

Dimensions in mm (inch)

ISO

NPT

Ø12

34.5 (1.36)

(0.5)

G1/2“

140 (5.5)

AD27

77 (3)

92 ( 3.6)

89 (3.5)

Ø30

(1.2)

1 2

Connection Diagram

Plug

1...V+

2...Analog output 4-20 mA

3...GND

4...RS485 A (=D+)

5...RS485 B (=D-)

1/2“NPT

AD22

74 (2.9)

Modbus Map

The measured values are 32Bit float values. The factory-set slave ID is 243 as integer 16Bit value. This ID can be customised in the register 0x00 (value range 1 - 247 permitted). For Modbus setting please see Application Note

AN0103. The factory setting of the transmission rate is: baud rate 9600, parity even, and stop bit 1.

FLOAT: INTEGER:

30032 0x1F dew point Td

30042 0x29 frost point Tf

Protocol address

Parameter name

60001 0x00 Slave-ID

60002 0x01 RS485 setting

Protocol address

Parameter name

Ordering Information

Pressure-tight screw connection

Software configuration

Physical parameters Dew point temperature Td [°C/°F] TD Analog output Frost point temperature Tf [°C/°F] Td/Tf output scaling xxx (acc. to table

(in °C or °F)

Measured value unit

G1/2" thread A 1/2" NPT thread C

at dew point <0°C, the frost point is issued

metric [°C] M non metric [°F] N

Scaling Range

TD or TF

002 -40...60 007 0...60 024 -20...80 048 -20...50 090 32...120

003 -10...50 008 -30...70 025 -20...60 060 -20...40 091 32...140

004 0...50 022 -40...80 047 -20...150 083 -40...140

EE354-T63G

scaling ranges)

Accessories

M12x1 5pin mating plug suitable for customer-specific assembly HA010708 sampling cell with quick connector HA050102 M12x1 5pin connection cable socket/flying leads 1.5 m HA010819 sampling cell NPT with bleed screw HA050107 M12x1 5pin connection cable socket/flying leads 5 m HA010820 basic sampling cell HA050103 M12x1 5pin connection cable socket/flying leads 10 m HA010821 stainless steel sinter filter

Order example

EE354-T63GA/TD060M

Pressure-tight screw connection: G1/2" thread Output: Dew point Td Scaling of output: 4-20 mA = -20...40 °C Td Measured value unit: metric [°C]

EE354

v1.5 / Modification rights reserved

Modbus - USB converter for EE35x

HA010103 HA011013

111