Compact Transmitter - Switch

Measuring values

Water activity

Humidity sensor

HMC01

Measuring range

0...1aw

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 - 20^oC
T: +(0.0003^oC/^oC)

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

typ. 10min in still oil

Temperature

Temperature sensor element

HMC01

Working range sensing probe

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

Outputs

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

General

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

RS232C

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

Storage temperature range

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

Electromagnetic compatibility according to

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