Keller 33 X Ed, 35 X Ed Specifications
Pressure TransmiTTer wiTh Pressure Proof housing
G 1/4"
87/97
18
71
G 1/2"
2
-
series 23 ed / 25 Ed
for hazardous aPPlicaTions
These piezoresistive pressure transmitters with pressure proof housing are approved for use in
explosion risk areas of group II. They provide stable and accurate measurements of absolute and
gauge pressures of liquid and gaseous media in the pressure range between 0,1 and 300 bar.
Flexibility
The modular structure of this product range allows highly exible applications and solutions that
are tailored to users‘ requirements. Numerous versions are available, for example with different
pressure connections, materials and lling oils, or versions for use with oxygen and with special
performance characteristics. In addition to the classical analog output signal (Series 23 Ed and
25 Ed), a digital solution based on the successful high-precision Series 30 X transmitters is also
available (33 X Ed and 35 X Ed).
Analog transmitters, Series 23 Ed and 25 Ed
This series is based on the stable piezoresistive transducer with analog electronics. The zero
point and sensitivity, and the temperature coefcients for the zero point and sensitivity, are
compensated by resistors and/or potentiometers.
Digital transmitters Series 33 X Ed and 35 X Ed
This series features microcontroller-based electronic evaluation to ensure maximum accuracy.
Each transmitter is gauged across the entire pressure and temperature range. This provides the
basis for calculating a mathematical model that corrects all reproducible errors. The pressure
value can be read via the interface and at the same time it is also available in analog form as a
4…20 mA or 0…10 V version.
Interface: RS485 half-duplex for 9600 and 115’200 baud for line lengths up to 1400 m and a maxi-
mum of 128 bus subscribers. Protocol: KELLER Bus and MODBUS RTU. The devices can be
congured (scale analog output, switch units, change lter settings, zeroing, etc.) and measured
values can be recorded with the CCS30 or PROG30 software, available free of charge.
series 33 X ed / 35 X Ed
Series 23 Ed
Series 33 X Ed
Ex-Classication
II 2 G
Ex db IIC T6 to T4
LCIE 03 ATEX 6082 X 0081
T4: -30 °C ≤ Ta ≤ +100 °C, T5: -30 °C ≤ Ta ≤ +95 °C, T6: -30 °C ≤ Ta ≤ +80 °C
Series 23 Ed / Serie 33 X Ed Series 25 Ed / Series 35 X Ed
12
2
10
HEX 27
ø 25
Pressure connection:
illustrations of examples
Series 25 Ed
Series 35 X Ed
Viton®
Seal
11
HEX 27
ø 25
KELLER AG für Druckmesstechnik
CH-8404 Winterthur
+41 52 235 25 25
info@keller-druck.com
KELLER Ges. für Druckmesstechnik mbH
D-79798 Jestetten
+49 7745 9214 0
eurocenter@keller-druck.com
KELLER America
Newport News, Virginia
1 877 253 5537
sales@kelleramerica.com
Edition 03/2019
Subject to alterations
Companies approved to ISO 9001
www.keller-druck.com
SpecificationS
Standard Pressure Ranges (FS) and Overpressure in bar
PR-23/25 Ed, PR-33/35 X Ed -1 1 3 10 30
PA(A)-23 Ed, PA(A)-33 X Ed 1 3 10 30 100 200 300
PA-25 Ed, PA-35 X Ed 1 3 10 30 100
Overpressure -1 3 7 20 60 200 300 450
PAA: Absolute. Zero at vacuum PA: Sealed Gauge. Zero at 1000 mbar abs. PR: Vented Gauge. Zero at atmospheric pressure
All intermediate ranges for the analog output of
Series 33/35 X Ed are realizable by spreading
the standard ranges. Smallest range: 0,1 bar.
Stability 0,1 %FS typ. (FS > 1 bar) 1 mbar typ. (FS ≤ 1 bar)
Series 23 Ed / 25 Ed
Accuracy @ RT
Compensated Temperature Range -10...80 °C
Storage- / Operating Temperature
(1)
0,2 %FS typ. 0,5 %FS max.
(2)
-30...100 °C
Temperature Coefcients… …of Zero …of Sensitivity
· FS > 1 bar 0,01 %FS/°C max. 0,02 %/°C max.
· FS 1 bar 0,02 %FS/°C max. 0,02 %/°C max.
· FS 0,5 bar 0,03 %FS/°C max. 0,02 %/°C max.
· FS 0,2 bar 0,05 %FS/°C max. 0,02 %/°C max.
Series 33 X Ed / 35 X Ed analog digital
Accuracy @ RT
(3)
0,03 %FS typ.
Error Band (10…40 °C) 0,1 %FS
Error band (-10…80 °C) 0,15 %FS
Storage- / Operating Temperature
(1)
Linearity (best straight line through zero) + hysteresis + repeatability
(3)
Linearity (BFSL) + hysteresis + repeatability
(2)
-30...100 °C
(4)
0,02 %FS typ.
(4)
0,05 %FS
(4)
0,1 %FS
(2)
T4: -30 °C ≤ T
(4)
Disturbance of the 4...20 mA signal occurs during communication through RS485.
≤ +100 °C, T5: -30 °C ≤ Ta ≤ +95 °C, T6: -30 °C ≤ Ta ≤ +80 °C
a
2-Wire 3-Wire Digital (only 33/35 X Ed)
Signal Output 4...20 mA 0...10 V RS 485
Supply (U) 8...32 Vcc 13...32 Vcc 8...32 Vcc / 3,5…12 Vcc
Load Resistance (R
Electrical Connection PUR-cable, length 2 m (with PE-sheath and reference tube for gauge). Others on request.
Volumetric Change < 0,1 mm
Pressure Connection G 1/4″, G 1/2″, G 3/4″, 1/2″-14 NPT, 1/4″-18 NPT
Material in Media Contact Stainless steel 1.4435 (316L), Viton
) (U-8 V) / 0,025 A > 5 k
Ω
3
/ FS
®
Protection IP50 (IP65/IP68 on request)
EMC Conformity EN 61000-6-2:2005 / EN 61000-6-3:2007 / EN 61326-2-3:2006
Weight PR/PA/PAA ≈ 200 g
Insulation > 10 MΩ @ 50 V
Endurance > 10 million cycles 0…100 %FS at 25 °C
Optionen
Pressure Connection On request
Pressure Ranges All pressure ranges between 0,1 and 300 bar
Material in Media Contact Hastelloy C-276 (C-22), gold-plated. Others on request.
Oil Filling Fluorized oil (O
ELECTRICAL CONNECTIONS
Series 23 Ed / 25 Ed Series 33 X Ed / 35 X Ed
2-Wire 3-Wire Cable 2-Wire 3-Wire
Transmitter Transmitter Transmitter Transmitter
– GND white OUT/GND GND
OUT/GND +OUT red – +OUT
+Vcc +Vcc black +Vcc +Vcc
blue RS 485A RS 485A
yellow RS 485B RS 485B
KELLER AG für Druckmesstechnik
CH-8404 Winterthur
+41 52 235 25 25
info@keller-druck.com
KELLER Ges. für Druckmesstechnik mbH
D-79798 Jestetten
+49 7745 9214 0
eurocenter@keller-druck.com
-compatible), olive-oil, low temperature oil
2
TRANSMITTER
3-Wire
0…10 V
red
white
black
+ +
GND
13…32 V
KELLER America
Newport News, Virginia
1 877 253 5537
sales@kelleramerica.com
2-Wire
4…20 mA
black
8…32 V
SUPPLY
Edition 03/2019
Subject to alterations
Companies approved to ISO 9001
www.keller-druck.com
GND
white
red resp.
Load
+
S
I
G
N
A
L
-
Loading...