Datasheet

KELLER AG für Druckmesstechnik St. Gallerstrasse 119 CH-8404 Winterthur Tel. +41 (0)52 - 235 25 25 Fax +41 (0)52 - 235 25 00
KELLER Ges. für Druckmesstechnik mbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. +49 (0)7745 - 9214 - 0 Fax +49 (0)7745 - 9214 - 60
Companies approved to ISO 9001 www.keller-druck.com
Subject to alterations 04/2015
Digital ManoMeter
Max.- anD Min.-function / accuracy 0,5 %fS
eco 2
ECO 2 is a compact and economical digital pressure measuring instrument providing medium
accuracy at high resolution and repeatability. The piezoresistive pressure transducer as the
heart of the instrument has gone through extensive pressure- and temperature tests.
The pressure is measured twice per second and displayed. The top display indicates the actual
pressure, the bottom display shows the Max.- or Min.- pressure since the last RESET.
ECO 2 has two operating keys. The left key turns on the instrument and is used to select the
functions and the pressure units. The right key executes the selected function or unit. The right
key is also used to switch between the Max.- and Min.-value.
The instrument has the following functions:
RESET
With the RESET-function, the Max.- and Min.-value is set to the actual pressure value.
ZERO The ZERO-function allows to set any pressure value as a zero reference. Barometric
pressure variations can thus be compensated.
The factory setting of the Zero for the range -1...30 bar is at vacuum (0 bar absolu-
te). For relative pressure measurements, activate “ZERO SEt” at ambient pressure.
Instruments with the range 0...300 bar are calibrated with the zero at atmospheric
pressure.
CONT The instrument turns off 15 Min. after the last key function. Activating CONT (Conti-
nuous) deactivates this automatic turn-off.
UNITS All standard instruments are calibrated in bar. The pressure can be indicated in the
the following units: bar, mbar/hPa, kPa, MPa, PSI, kp/cm
2
.
ECO 2 has 7/16” UNF male thread and is delivered complete with an O-ring seal swivel tting
which allows ECO 2 to be rotated 360°. Only minimal torque is needed to seal up to 300 bar.
Process pressure connection is G 1/4” male.
Optional accessories: - Protective rubber covering
- Carrying bag
ECO 2 Ei
Intrinsically safe version, 94/9/CE
(ATEX 100a)
Classication: Ex II 1 G EEx ia IIC T6 or T5
Certication File: LCIE 01 ATEX 6001 X
The EEx ia version of ECO 2 incorporates an
additional protection switch. Functions, ranges
and accuracy are identical to the standard
version.
“Swivel”
Adapter G 1/4”
EEx-Certication in Process
Specications
Pressure Ranges -1…30 bar 0…300 bar
Resolution 10 mbar 100 mbar
Overpressure 60 bar 400 bar
Accuracy @ Room Temperature * < 0,5 %FS
Total Error Band (0...50 °C) < 1 %FS (accuracy incl. temperature error))
Storage-/Operating Temperature -20…70 °C / 0…50 °C
Supply 3 V battery, type CR 24300
Battery Life 1’000 hours continuous operation
Pressure Connection 7/16”-20 UNF (adapter G 1/4” included)
Materials in Media Contact ECO 2: AISI 316L (DIN 1.4404/1.4435)
Swivel: Brass nickel-plated, Nitril O-Rings
Adapter: Galvanised steel (9 SMnPb 28K), NBR prole seal
Protection IP 65
Diameter x Height x Depth 59 x 95 x 32 mm
Weight Instrument / Adapter ≈ 100 g / 40 g
* Includes linearity, repeatability, hysteresis and resolution of the display.
Does not include Zero stability.

Summary of content (1 pages)