EE381 EPLUSE | Alldatasheet
Document overview
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Technical content
v1.12 / Modification rights reserved | 2 EE381 The EE381 is designed for the reliable measurement of moisture in transformer, lubrication or hydraulic oil as well as in diesel fuel. It is ideal for the preventive maintenance of equipment and machinery. Besides the accurate measurement of water activity (a w) and temperature (T), the EE381 calculates the absolute water content of the oil (x) in ppm. Measurement Performance The device features the high end E+E humidity sensing elements of the HC series, which stand for long term stability and high resistance to pollution. Display and Outputs The measured data is available on two freely configurable voltage or current outputs, as well as on the optional LC-display. Functional Design The compact, robust metal enclosure, the swirling front-end and various process connections and sampling options allow for easy and comfortable design-in, mounting and maintenance. Configuration and Adjustment An optional adapter and the free EE-PCS Product Configuration Software facilitate easy configuration and adjustment of the EE381. EE381 moisture in oil sensor Compact Dew Point Sensor
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Features
According to DIN EN 10204-3.1 Outputs ▪ Two voltage or current outputs ▪ Industrial connector DIN VDE 0627 / IEC 61984 Measurement performance ▪ Water activity, water content, temperature ▪ Suitable for transformer, lubrication and hydraulic oil, as well as for diesel fuel Status LEDs Enclosure ▪ IP65 protection rating ▪ Aluminium die-cast (AlSi9Cu3) ▪ Swirling front end Configurable and adjustable ▪ Service interface ▪ Free EE-PCS Product Configuration Software Process connection ▪ Stainless steel ▪ G 1/2" ISO or 1/2" NPT ▪ Pressure rating 20 bar (290 psi) or 100 bar (1 450 psi)
v1.12 / Modification rights reserved | 4 Dimensions Values in mm (inch) Enclosure Ø12 (0.5) 75 (3) 54 (2.1) 24 (1) 40 (1.6) 32 (1.3) Ø12 (0.5) 75 (3) 54 (2.1) 24 (1) 40 (1.6) 32 (1.3) AF: 27 or 24 G 1/2" ISO or 1/2" NPT Technical Data Measurands Water Activity (a w) / Water Content (x) Measuring range 0...1 aw 0...100 000 ppm; actual range depends on the oil type, for non-mineral transformer oil, specific Accuracy1) including hysteresis, non-linearity and repeatability (0...0,9 a w) (0,9...1 a w) ±0.02 aw ±0.03 aw Temperature dependency aw T ±0.0003 °C/°C Response time t 90, typ. @ 20 °C (68 °F) in still oil 10 min. 1) Traceable to intern. standards, administrated by NIST, PTB, BEV,... steht nicht im alten DB The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times 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).
v1.12 / Modification rights reserved | 5 Technical Data Measurands Outputs Analogue Two freely selectable and scaleable outputs aw, T or x [ppm] 0 - 5 V 0 - 10 V1) -1 mA < IL < 1 mA IL = load current 4 - 20 mA (3-wire) 0 - 20 mA (3-wire) RL < 500 Ω1) R L = load resistance 1) Minimum supply voltage 15 V DC Power supply class III USA & Canada: Class 2 supply necessary, max. voltage 30 V DC 10 - 30 V DC Current consumption, typ. @ 24 V DC Voltage output Current output 40 mA 80 mA Electrical connection 7-pole industrial plug wire cross-section cable outlet DIN VDE 0627 / IEC 61984 0.25 - 1 mm 2 PG 11 Filter Stainless steel Temperature working range Probe Electronics Display Enclosure Material Protection rating Aluminium die-cast (AlSi9Cu3) IP65 Electromagnetic compatibility EN 61326-1 EN 61326-2-3 Industrial environment FCC Part15 Class B ICES-003 Class B Conformity Configuration and adjustment EE-PCS Product Configuration Software ( free download: www.epluse.com/configurator ) and configuration adapter General General Temperature (T) Accuracy1) 90 100 110 120 ∆T [°C] T [°C] 1) Traceable to intern. standards, administrated by NIST, PTB, BEV,... steht nicht im alten DB The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times 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).
v1.12 / Modification rights reserved | 6 Ordering Guide Feature Description Code Hardw. Conf. EE381- Process connection G 1/2" ISO thread PA1 1/2" NPT thread PA2 Pressure rating 20 bar (290 psi) PN20 100 bar (1 450 psi) PN100 Filter Stainless steel, for flow <1 m/s No code Stainless steel, for flow >1 m/s F18 Display Display with backlight D2 Software Setup - Outputs Output 1 measurand Water activity a w [ ] No code Water content x [ppm] M70 Temperature T [°C] MA1 Temperature T [°F] MA2 Output signal 1 1) 0 - 5 V GA2 0 - 10 V GA3 0 - 20 mA GA5 4 - 20 mA GA6 Output 1 scaling low 0 No code Value SALValue Output 1 scaling high 1 No code Value SAHValue Output 2 measurand Temperature T [°C] No code Temperature T [°F] MB2 Water activity a w [ ] MB67 Water content x [ppm] MB70 Output signal 2 1) 0 - 5 V GB2 0 - 10 V GB3 0 - 20 mA GB5 4 - 20 mA GB6 Output 2 scaling low 0 No code Value SBLValue Output 2 scaling high Value SBHValue Oil parameterization for water content calculation Mineral transformer oil No code Customer specific oil PPMxxx2) 1) Both analogue outputs must be either voltage or current. 2) Procedure for customer specific oil (see table below). Option Description Code Oil number is known Replace the xxx by the corresponding number Obtaining new oil parameters via oil analysis Contact and provide E+E HQ the datasheet of the oil before sending us 2 litres of oil. After determination of the oil specific parameters, the corresponding oil number is available, insert this in place of the xxx. Oil-ppmcal Obtaining new oil parameters via saturation curve Contact and provide E+E HQ the datasheet of the oil together with the saturation curve. After calculation of the oil specific parameters, the corresponding oil number is available, insert this in place of the xxx. Oil-calc 2) Procedure for customer specific oil
v1.12 / Modification rights reserved | 7 Order Example EE381-PA1PN20D2MA1GA2SAH100MB70GB2SBH100 Feature Code Description Process connection PA1 G 1/2” ISO thread Pressure rating PN20 20 bar (290 psi) Filter No code Stainless steel, for flow <1 m/s Display D2 Display with backlight Output 1 measurand MA1 Temperature T [°C] Output signal 1 GA2 0 - 5 V Output 1 scaling low No code 0 Output 1 scaling high SAH100 100 Output 2 measurand MB70 Water content x [ppm] Output signal 2 GB2 0 - 5 V Output 2 scaling low No code 0 Output 2 scaling high SBH100 100 Accessories Description Code Product Configuration Software (free download: www.epluse.com/configurator ) EE-PCS Product Configuration Adapter (available at www.epluse.com/ee381 ) EE-PCA For further information see datasheet Accessories . Oil-ppmcal Contact and provide E+E HQ the datasheet of the oil before sending us 2 litres of oil.
Company Headquarters & Production Site E+E Elektronik Ges.m.b.H. Langwiesen 7
4209 Engerwitzdorf | Austria
info@epluse.com www.epluse.com Subsidiaries E+E Sensor Technology (Shanghai) Co., Ltd. T +86 21 6117 6129 info@epluse.cn E+E Elektronik France SARL T +33 4 74 72 35 82 info.fr@epluse.com E+E Elektronik Deutschland GmbH T +49 6171 69411-0 info.de@epluse.com E+E Elektronik India Private Limited T +91 990 440 5400 info.in@epluse.com E+E Elektronik Italia S.R.L. T +39 02 2707 86 36 info.it@epluse.com E+E Elektronik Korea Ltd. T +82 31 732 6050 info.kr@epluse.com E+E Elektronik Corporation T +1 847 490 0520 info.us@epluse.com Version v1.12 | 08-2023 Modification rights reserved