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
3/98
www.keller-druck.com
Subject to alterations
FULL-VERSION
The Full-Version of the calibrator is a complete, self-contained transmitter testing unit. With
internal supplies for the transmitter and the calibrator itself, the self-contained instrument is
always ready for use. For a variety of measuring and testing tasks, a wide selection of software
functions are incorporated:
M
ANO displays the pressure and the maximum and minimum pressures
MANO* displays the pressure, the transmitter signal and the temperature
HOLD freezes the actual measured values on the display
TARA sets the pressure display to zero (volatile)
UNIT scales the display into different pressure units (bar, PSI, kPa…)
LEAK determines the pressure decrease (or increase) over a pre-set time period
REC records the measured values (the number of values and the interval are programmable)
RESO reduces or increases the resolution
ZERO sets the pressure display to zero (permanently)
PST records the switching points of pressure switches
LIN calculates the linearity error of the test transmitter
*
with transmitter connected
STANDARD-VERSION
The Standard-Version is limited to the essential features for precision pressure generation only.
For this simplified operation, this version does not include the integral transmitter supply, nor
the display of the transmitter signal. Thus it does not incorporate the PST and LIN functions.
PRESSURE CALIBRATORS
These Pressure Calibrators from KELLER are very precise calibration instruments for the cali-
bration of pressure transmitters, pressure switches and pressure gauges.
The Low- and Medium ranges are pneumatic, and the High ranges are hydraulic. The portable
housing incorporates the pressure generating pump, a high precision reference sensor and
the measuring electronics.
The transmitter under test is connected to the pressure port of the calibrator and the signal is
read out directly on the display. Various internal functions and performance features assist the
user in many different measuring tasks. In addition, the serial interface allows the transfer of
the measured data onto a PC for further processing. The calibrator, including accessories, is
supplied with a robust carrying case and is ideal for outdoor, on-site use.
To meet differing requirements, two basic versions of the calibrator are offered:
LOW-, MEDIUM-, HIGH PRESSURE
148 mm
ø 76
≈ 315 - 337 mm
ø 50
≈ 154 mm
High Pressure Calibrator
Outline Drawing
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
3/98
www.keller-druck.com
Subject to alterations
LOGGER
The Logger-Software allows the read-out of the stored data
from the calibrator. The data transfer takes place via the serial
interface on the PC.
The calibrator is connected through a cable K101 (supplied
with Logger software).
The LOGGER-software offers many further processing possibi-
lities of the read-out data, and meets all the requirements of
modern Windows software:
- Graphical Display
- Tabulated Display
- Export into other Windows Programs
- Storage into Files
SPECIFICATIONS
Pressure Ranges (FS) bar -1…2 -1…10 -1…25 0…200 0…350 0…700
Overpressure bar 2,4 12 30 240 420 840
Low Pressure Calibrator
Medium Pressure Calibrator
High Pressure Calibrator
Total Accuracy
(1)
0,05% FS typ. / 0,1% FS max.
Measuring Interval 0,5 sec. (1 second with transmitter or pressure switch connected)
(1)
Includes linearity, repeatability, hysteresis, temperature and resolution of the display over the range 0..50°C
ELECTRICAL CHARACTERISTICS
Electronic Supply Lithium-battery 3,6 V (included)
Battery Life > 200 days at continuous operation
Transmitter Supply (Full-Version only) max. 18 VDC (2 x 9 V batteries) or with 220 VAC adapter (included)
ENVIRONMENTAL CHARACTERISTICS
Operating Temperature 0…50°C
Compensated Range 0…50°C
Storage Temperature - 20…60°C
Display 0…50°C
Air Humidity 5…95% relative humidity
OPTIONS
- Logger-Software for data transfer to PC and cable K101 (see below)
- Extended memory up to 8000 storage places for the REC-function (standard 900 storage places)
MECHANICAL CHARACTERISTICS
Calibrator-Housing Polyamid 12
Weight 1,6 to 4,0 kg, depending on model
Pressure Connection Serto + different adapters
Protection IP 54
Hydraulic Oil
(2)
Type HLP 22 BP
(2)
High range only
KELLER
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