Electronic

Pressure Measurement

 ressure Transmitter
P
Model ECO-1

WIKA Data Sheet PE 81.14

Applications

 Mechanical engineering
 Hydraulics
 General industrial applications

Special Features

 Pressure ranges from 0 ... 1 bar to 0 ... 1000 bar

 Current or voltage output signals
 Case and wetted parts of stainless steel
 Medium temperature
-40 °C ... +100 °C / -40 °F ... +212 °F Fig. Pressure Transmitter ECO-1
 Wiring with L-connector or flying leads

Description

Wide range of applications Reliable signal acquisition

The pressure transmitter model EcoTronic® has been With various standard output signals like
designed for all fields of industrial pressure measurement. 4 ... 20 mA (2-wire), or 0 ... 10 V, 1 ... 5 V and
Typical applications are in mechanical engineering, plant 1 ... 6 V (3-wire), the transmitter can be easily integrated
construction and automation industry. into different systems. RFI/EMI-characteristics according
to EN 61 326 guarantee signal integrity even under difficult
Reliable measurement technology environmental conditions.
Pressure ranges from 0 ... 1 bar up to 0 ... 1000 bar cover
the measuring ranges of the most applications. The sensors Interesting price/performance ratio
made by WIKA, with high accuracy, long-term stability The excellent performance characteristics and the good
and repeatability, have been well established in industrial price/performance ratio of the EcoTronic make it the perfect
pressure measurement for decades. Depending on the choice for applications with medium and large volumes.
pressure range, the suitable sensor, either piezoresistive or
metallic thin film, will be utilized.

WIKA Data Sheet PE 81.14 ∙ 06/2008 Page 1 of 4

Data Sheets for related models:

Pressure transmitter ECO-1 for Shipbuilding and Off-Shore; model ECO-1; see data sheet PE 81.18
Pressure transmitter for mobile hydraulic applications; model MH-2; see data sheet PE 81.37
OEM-Pressure Transmitter with ceramic thick film technology; model OC-1; see data sheet PE 81.41
 Specifications Model ECO-1
Pressure ranges bar 1 1.6 2.5 4 6 10 16 25
Over pressure safety bar 5 10 10 17 35 35 50 50
Burst pressure bar 6 12 12 20.5 42 42 80 80
Pressure ranges bar 40 60 100 160 250 400 600 1000
Over pressure safety bar 80 120 200 320 500 800 1200 1500
Burst pressure bar 200 300 500 800 1250 1300 1800 3000
{Absolute pressure: 0 ... 1 bar abs up to 0 ... 16 bar abs}
Materials
■ Wetted parts Stainless steel
■ Case Stainless steel
■ Internal transmission fluid 1) Synthetic oil
1) Not with pressure ranges > 16 bar.

Power supply UB UB in VDC 10 < UB ≤  30 (14 ... 30 with signal output 0 ... 10 V, 1 ... 6 V)
Signal output and RA in Ohm 4 ... 20 mA, 2-wire RA ≤ (UB – 10 V) / 0.02 A
maximum ohmic load RA 0 ... 10 V, 3-wire RA > 10 k
1 ... 5 V, 3-wire RA > 5 k
1 ... 6 V, 3-wire RA > 6 k
Response time (10 ... 90 %) ms ≤ 5 (≤ 10 ms at medium temperatures below <-30°C for pressure ranges up to 16bar
Dielectric strength VDC 500 2)
2) NEC Class 02 power supply (low voltage and low current max. 100 VA even under fault

conditions)
Accuracy % of span ≤ 0.5 (BFSL)
% of span ≤ 1.0 3)
3) Including non-linearity, hysteresis, zero point and full scale error (corresponds to error of

measurement per IEC 61298-2).

Adjusted in vertical mounting position with lower pressure connection
Non-linearity % of span ≤ 0.4 (BFSL) according to IEC 61298-2
1-year stability % of span ≤ 0.3 (at reference conditions)
Permissible temperature of
■ Medium 4) -40 ... +100 °C -40 ... +212 °F
■ Ambience 4) -30 ... +80 °C -22 ... +176 °F
■ Storage 4) -30 ... +100 °C -22 ... +212 °F
4) Also complies with EN 50178, Tab. 7, Operation (C) 4K4H, Storage (D) 1K4, Transport (E) 2K3

Compensated temp. range 0 ... +80 °C 32 ... +176 °F

Temperature coefficients within
compensated temp range
■ Mean TC of zero % of span ≤ 0.4 / 10 K
■ Mean TC of range % of span ≤ 0.3 / 10 K
CE-conformitiy
■ Pressure equipment directive 97/23/EC
■ EMC directive 89/336/EEC emission (class B) and immunity according to EN 61 326
Wiring protection VDC
■ Overvoltage protection 36
■ Short-circuit proofness Sig+ towards UB-
■ Reverse polarity protection UB+ towards UB-
Weight kg Approx. 0.15
{ } Items in curved brackets are optional extras for additional price.

Page  of 4 WIKA Data Sheet PE 81.14 ∙ 06/2008

Dimensions in mm
Ingress Protection IP per IEC 60529. The ingress protection classes specified only apply while the pressure transmitter is connected with
female connectors that provide the corresponding ingress protection.

Electrical connections
L-connector M 12x1 Flying leads with 1.5m of cable,
for conductor cross section Circular connector for conductor cross section 0.5 mm 2,
up to max. 1.5 mm 2, 4-pin AWG 20 with end splices,
conductor outer diameter 6-8 mm IP 67 conductor outer diameter 6.8 mm,
IP 65 Order code: M4 IP 67
Order code: A4 Order code: DL

Pressure connections
G 1/4 1/4 NPT
EN 837 per „Nominal size for US
Order code: GB standard tapered pipe
thread NPT“
Order code: NB

Others on request
For installation and safety instructions see the operating instructions for this product.
For tapped holes and welding sockets please see Technical Information IN 00.14 for download at www.wika.de

Wiring details
2-wire 3-wire
DIN 175301-803 A
L-Connector

M 12x1, 4-pin
Circular connector

Flying leads
brown brown

Legend:

white

green green

WIKA Data Sheet PE 81.14 ∙ 06/2008 Page 3 of 4

Further pressure transmitter from our OEM production

Fig. Pressure transmitter ECO-1 for Shipbuilding Fig. Pressure transmitter MH-2 with thinfilm technology
and Off-Shore with German Lloyd approval for mobile hydraulic applications
see data sheet PE 81.18 see data sheet PE 81.37

Further information
You can obtain further information (data sheets, instructions, etc.) via our internet address
www.wika.de

Specifications and dimensions given in this leaflet represent the state of engineering at the time of printing.
Modifications may take place and materials specified may be replaced by others without prior notice.
9078215 06/2008 GB

Page 4 of 4 WIKA Data Sheet PE 81.14 ∙ 06/2008

WIKA Alexander Wiegand GmbH & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 / (0) 9372/132-0
Fax +49 / (0) 9372/132-406
E-mail info@wika.de
www.wika.de