Datasheet

KELLER AG für Druckmesstechnik St. Gallerstrasse 119 CH-8404 Winterthur Tel. 052 - 235 25 25 Fax 052 - 235 25 00
KELLER
Gesellschaft für Druckmesstechnik mbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. 07745 - 9214 - 0 Fax 07745 - 9214 - 50
Companies approved to ISO 9001 / EN 29001
3/02
www.keller-druck.com
Subject to alterations
DIGITAL MANOMETER
WITH MAX.- AND MIN.-FUNCTION / ACCURACY: 0,5%
ECO 1 / ECO 1 Ei
ECO 1 is a compact and economic digital pressure measuring instrument. It is of medium
accuracy, but of high resolution and repeatability.
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 1 has two operating keys. The left key is to turn the instrument on and to execute its
functions (the functions appear successively on the display as long as the key is pressed and
are executed when releasing the key). 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.
OFF: Turns off the instrument.
ZERO
: The ZERO-function allows to set any value as a new Zero reference. Barometric
pressure variations can thus be compensated.
The factory setting of the Zero for the range -1…30 bar is at 0 bar absolute. For
sealed gauge pressure measurements, activate “ZERO SEt” at ambient pressure.
Instruments with the range 0…300 bar are calibrated in a sealed gauge mode with 1 bar
absolute pressure as a Zero reference.
CONT: The instrument turns off 15 Min. after the last key function. Activating CONT (Conti-
nuous) deactivates this automatic turn-off.
ECO 1 has 7/16” UNF male thread and is delivered complete with an O-ring seal swivel fitting
which allows ECO 1 to be rotated through 360°. Only minimal tightness is
needed to seal up to 300 bar.
Process pressure connection is G 1/4” male.
Adapter G 1/4”
“Swivel”
SPECIFICATIONS
Ranges rel. -1…30 bar 0…300 bar
Resolution 10 mbar 100 mbar
Overpressure 60 bar 400 bar
Accuracy 0,5% FS typ. 1% FS max
Storage- / Operating Temperature -20…70 °C / 0…50 °C
Compensated Temperature Range 0…50 °C
Supply 3 V battery, type CR 2430
Battery Life 1’000 hours continuous operation
Pressure Connection 7/16”-20 UNF (adapter G 1/4” included)
Protection, CEI 529 IP 65
Diameter x Height x Depth 59 x 95 x 32 mm
Weight ≈ 125 g
ACCESSORIES (OPTIONAL):
Protective rubber covering and carrying bag.
The protective rubber covering is suitable for toughest applications.
ECO 1 Ei
Intrinsically safe version, 94/9/CE (ATEX 100a)
Classification: II 1 G EEx ia IIC T6 or T5
Certification File: LCIE 01 ATEX 6001 X
The EEx ia version of ECO 1 incorporates
an additional protection switch.
Functions, ranges and accuracy
are identical to the standard
version.