L
RELIABLE MEASUREMENT
OF TRACE MOISTURE.
• Highly accurate dew point and temperature measurement
• Withstands pressures up to 100 bar
• HYGROMER
• Excellent repeatability
• With the latest AirChip4000 measurement technology
• Compatible with HF5 / HF8 / PF4 transmitters
®
LDP-1 sensor element
P
and HP22 / HP23 handhelds
ROTRONIC LOW DEW POINT PROBE
TECHNICAL INFORMATION.
AirChip4000 / HYGROMER® LDP-1
The low dew point probe comes with the latest AirChip4000
technology. Calculates a measurement from the average of
8,000 single points within a 2 second interval and, together
with the HYGROMER
®
LDP-1 dew point sensor, delivers mea-
surements of the highest quality.
Field of Application
The low dew point probe can be used in compressed air systems, refrigeration driers and adsorption driers. ROTRONIC
offers the probe with EX certifi cate for environments with
ATEX requirements. Please refer to to the ATEX data sheet
for more detailed information.
Accessories
Suitable measurement chambers with a defi ned air fl ow rate
and a quick connector for optimum dew point measurement
are available in POM and stainless steel. The base unit can
be used for customization.
Standard Meas. Chambers Meas. Chambers Base Unit
LDP-FCPB1 LDP-FCSB1 LDP-MCP LDP-MCS
Measurement Chamber Specifi cations
Air fl ow 1 liter/min. @ 8 bar (LDP-FC)
Measurement
-40…85 °C / -50…100 °C (stainless steel)
range
Pressure
16 bar / 100 bar (only LDP-MCS)
resistance
Dimensions 40 x 106 mm
Connections G1/2“ thread
Compressed air fi tting DN 7.2
(only LDP-FC)
2 x G 1/4“ thread (only LDP-MC)
Housing
material
Base unit: POM / Stainless steel 1.4301
Brass (fi xed valve / quick connector)
Dimensions
General Specifi cations
Device type Digital dew point & temperature
probe
Measurement range -70…85 °C T
Dew point accuracy @ 23 °C ±2 K T
±3.5 K T
/ -40...85 °C
d
(-50…20 °C Td)
d
(-60…-50 °C Td)
d
Temperature accuracy @ 23 °C ±0.2 K
Power supply 3.3...5 VDC
IP protection IP65
Current consumption <1.5 mA
Compatible with HF5, HF8, PF4, HP22,
HP23 AC3001, HW4
Probe
Filter / Filter carrier Sintered stainless steel, 50 µm
Maintenance / Calibration Annual calibration (recommended)
®
/year
d
LDP-1
Dew point sensor HYGROMER
Long-term stability
<1 °C T
dew point sensor
Response time dew point sensor
Ƭ63: @ -50 °C T
d
Response time temperature
sensor Ƭ63: @ -50 °C T
d
Typically <10 min, with fi lter(wet to dry)
Typically <13 s, with fi lter (dry to wet)
Typically <15 min, with fi lter
Temperature sensor Pt1000, Class B 1/3 DIN
Measurement interval 2 sec.
Pressure resistance 16 bar
100 bar (with LDP-MCS measurement
chamber)
Dimensions 145 x 31 mm (probe head)
Hexagonal nut: 27 mm
Interface UART
Weight
Probe 260 g
Measurement chamber POM 140 g
Measurement chamber steel 610 g
Storage and transport conditions
-40…85 °C, non-condensing
Conformity with Standards
CE / EMC compatibility 2004/108/EC
FDA / GAMP directives Compatible
Housing material Stainless steel, 1.4301
Subject to technical change without notice. Printing and other errors reserved.
14,9
G1/2
90
12 43
Would you like more information?
You can fi nd a complete, up-to-date overview of our probes on the internet at www.rotronic.com.
ROTRONIC AG, Grindelstrasse 6, CH - 8303 Bassersdorf, Tel. +41 44 838 11 44, www.rotronic.ch
ROTRONIC Instruments (UK) Ltd, Crompton Fields, Crompton Way, Crawley, West Sussex, RH10 9EE, UK, Phone +44 (0)1293 571000, www.rotronic.co.uk
ROTRONIC Instrument Corp, 135 Engineers Road, Hauppauge, NY 11788, USA , Phone, +1 631 427-3898, www.rotronic-usa.com
ROTRONIC Canada Inc., 236 Pritchard Rd, Unit 204, Hamilton, ON, Canada , L8W 3P7, Phone + 1 416-848-7524, www.rotronic.ca
ROTRONIC Instruments Pte. Ltd., 1003 Bukit Merah Central, #06-31 Inno Centre, Singapore 159836, Phone +65 6376 2107, www.rotronic.sg
59042E/2015-03