COSA Xentaur Xentaur HDT - Manual (Page 21)

HDT User’s Manual
page 14
HDT and its wiring as practical.
3.2 Instrument Technical Specifications
Enclosure: ...........................Stainless Steel.
Dimensions & Weight:........~1.25”Dia. x ~5.68” long including sensor & connector (see
appendix C) 0.5lbs.
Pressure operating range:....Standard: ...........500 PSI (34 bar).
Optional:5,000 PSI (340 bar).
Operating Temperature: ......-22°F to 185°F (-30°C to +85°C).
Mechanical connections:.....14mm x 1.25mm threads, and ¾”-16 threads, may be outfitted
with other threads upon request.
Electrical connections: ........Industrial Standard 9.4mm 4pin connector IP65.
Cable: ..................................Two conductor min #24AWG;
for total cable length >5000ft. min #20AWG
cable must be shielded to meet CE requirements;
for ambient temperatures above 60°C assure that wiring tem-
perature rating exceeds the maximum expected ambient tem-
perature.
Power Requirements: ..........5 VDC (min) to 28 VDC (max), the instrument draws 4-
20mA depending on measured dewpoint.
Input resolution: ..................0.1°C dewpoint.
Indicators: ...........................none.
Engineering units: ...............factory programmed: °C,°F, ppmV, LBS H
2
O/mm scf, gm
H
2
O/m
3
, ppmW, water vapor pressure.
Controls:..............................HART interface, user’s selections are stored in EEPROM.
Outputs:...............................Analog and digital outputs are available:
A. 4-20mA drawn by the instrument from the power supply.
The 4-20mA is linear to the engineering units, the range is
programmable. Output resolution is 0.1°C dewpoint or
~0.25
µA whichever is greater.
B. The instrument can supply digital output by modulating
the 4-20mA loop line. The interface is defined by HART. In
the digital mode the HDT can be remotely operated, the dew-
point & temperature can be read. Multiple units can operate
on the same loop cable as a multi-channel instrument.
Alarms:................................The 4-20mA signal or the digital output may be used by an
external device to operate relays. In addition a digital output
pin is provided which can be factory programmed to provide
dewpoint alarm indications.
Isolation: .............................Sensor is connected to the current loop but, isolated from the
HDT housing and installation threads.
Approvals/Classifications: ..CE for electromagnetic compatibility, accredited laboratory
tested and certified. FM approved for use in Hazardous loca-
tions and NEMKO ATEX approved when installed per draw-