Compact Transmitter - Switch

Compact Transmitter - Switch

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We take pleasure to introduce ourselves as the noteworthy exporter and importer a wide collection of Compact Transmitter – Switch. This transmitter is utilized in waste water treatment, pharmaceutical and chemical industry. To offer the flawless array to consumers, we check this transmitter on defined quality standards. Customers can avail this compact transmitter from us in different specifications as per their demands. Apart from this, customers can purchase this compact transmitter – switch from us at rock bottom prices.

Technical Specification :

Measuring values

Water activity

Humidity sensor


Measuring range


Accuracy incl. hysteresis and nonlinearity in air

+0.02aw (0...0.9aw)+0.03aw (0.9...1aw)
Traceable to intern. standards, administrated by NIST, PTB, BEV...

Temperature dependence

aw: +(0.00022 + 0.0002 x aw) x ΔT [oC] ΔT = T - 20oC
T: +(0.0003oC/oC)

Response time with stainless steel filter at 20°C / t90

typ. 10min in still oil


Temperature sensor element


Working range sensing probe

-40...80oC (-40...176oF)


EE381-Tx two freely selectable and scaleable analogue outputs for aw, T, ppm

0 - 1V / 0 - 5V / 0 - 10V1)-1mA < IL < 1mA
4 - 20mA / 0 - 20mARL < 500 Ohm1)

EE381-Sx alarm output

2 potential-free relays (normally open) 30V DC 0.6A / 35V AC 0.3A (resistive)

Standard setting of alarm outputs

pre-alarm:0.8 aw
main alarm: 0.9 aw
hysteresis: 0.05 aw


Supply voltage

10...30V DC

Current consumption at 24V DC

voltage output: typ. 40mA / during autocalibration: 100mA
current output: typ. 80mA / during autocalibration: 140mA

Pressure range

0...20bar (0...290psi) / 0...100bar (0...1450psi)

System requirements for software

WINDOWS 2000 or later; serial interface

Serial interface for configuration


Housing / Protection class

Al Si 9 Cu 3 / IP65; Nema 4

Electrical connection

7-pole industrial plug: DIN VDE 0627 / IEC 61984 cable cross-section: 0.25 - 1 mm2 / cable connection: PG 11

Sensor protection

stainless steel filter (punched)

Working temperature range

probe: -40...80oC (-40...176oF)
electronic:-40...60oC (-40...140oF)
with LC display: -20...50oC (-4...122oF)

Storage temperature range

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

Electromagnetic compatibility according to

EN61000-6-3 EN61326-2-3
EN61000-6-2 EN61326-1
FCC Part15 ClassB ICES-003 ClassB