Rotronic XB32A OEM Series Short Instruction Manual

XB32A OEM-S
ERIES
Short Instruction Manual
1 GENERAL DESCRIPTION
The XB-OEM devices are universal transmitters for transmission of humidity and temperature mea-
surements. These short instructions are limited to a description of the main functions and installa-
tion of the device. The detailed instruction manual can be found on the internet at:
www.rotronic.com
2 DIMENSIONS / CONNECTIONS
64
58
56
Service interface
(Mini-USB)
H + V
H_OUT
T + V
T_OUT
PPS probe Ø 15 mm
100 mm 44 mm
3 MECHANICAL INSTALLATION
3.1 GENERAL RECOMMENDATIONS
Relative humidity is extremely temperature-dependent. In order to measure it exactly, the probe
and sensors must be set exactly on the temperature level of the environment that is to be mea-
sured. The installation site can therefore have a significant influence on the performance of the
device. Follow the guidelines below to ensure optimum performance:
a. Select a representative installation site: Install the probe at a point where the humidity,
temperature and pressure conditions are representative for the environment that is to be
measured.
b. Make sure there is sufficient air movement around the probe: An air flow of at least 1 metre/
second accelerates and facilitates adjustment of the probe to changing temperatures.
c. Avoid:
1. Probe too close to heating elements, cooling coils, cold or hot walls, direct sunlight, etc.
2. Probe too close to steam, injectors, humidifiers or direct precipitation.
3. Unstable pressure conditions with high air turbulence.
d. Insert the probe as far as possible into the environment that is to be measured.
e. Avoid accumulation of condensation at the contact wires of the sensor. Install the probe so
that the tip points down. If that is not possible, install it in horizontal position.
OK
OK
English
3.2 MOUNTING THE VERSION TYPE-XB32A
To avoid measurement errors, at least 200 mm of the probe should be inserted into the environ-
ment that is to be measured. If necessary, use the mounting flange AC1303-M to install the probe
and fasten the transmitter.
AC1303-M and
AC1305 mounting
flange for 15 mm probe
AC1303-M
4 ELECTRICAL INSTALLATION
4.1 GENERAL WIRING GUIDELINES
Heavy machinery and instrumentation should not share the same power supply wiring. If this can-
not be avoided, noise filters and surge protectors should be used. Most UPS devices have those
features already integrated.
4.2 LIGHTNING PROTECTION
Cabling in areas with a risk of lightning requires a lightning protection. For cabling underground in
between buildings, we recommend the use of special fiber optic cables. If this is not possible, use
copper cables that are suitable for underground installation.
4.3 GROUNDING
Generally it is recommend grounding the (-) side of the power supply, especially if the electronics
are exposed to an environment with low humidity (35 %rh or less).
4.4 POWER SUPPLY
XB3: (3-wire with analogue outputs): 5 to 40 VDC or 5 to 28 VAC. When both outputs are connected,
the maximum current consumption is 50 mA.
4.5 SUPPLY VOLTAGE / TECHNOLOGY
Type Supply voltage V+ Load Output
3-wire
Max 500 Ω
XB32 15...40 VDC / 13...28 VAC 4...20 mA
Caution: Wrong supply voltages and excessively high loading of the outputs can damage
the transmitter.
4.6 TERMINAL CONFIGURATION / CONNECTION DIAGRAMS
The type is defined using the table Supply voltage / Technology to then use the following connec-
tion diagrams:
3-wire circuit / XB32A
Current output
K2: V+ K1: OUT1
K1: OUT2
OUT 1
= ~
OUT 2
K1
GND
GND
K2: V- K1: GND
V+
K2
V-
Voltage output
K2: V+ K1: OUT1
K1: OUT2
K2: V-
K1: GND
Terminal Description
K1-1 OUT1 Analogue humidity-/dew point output +
K1-2 OUT2 Analogue temperature output +
K1-3 GND Analogue GND
K1-4 GND Analogue GND
K2-1 V+ Supply voltage + / Phase
K2-2 V – Supply voltage – / Phase
5 PROGRAMMING
The basic settings of the devices are made in the factory according to your order. The transmitters
are adjusted in the factory and therefore do not need to be checked and readjusted during installa-
tion. The devices can be started immediately after installation.
6 SOURCES OF ERROR
Measured values can be influenced by the following factors:
Temperature errors
Adaptation time too short, cold outside wall, heating elements, sunlight, etc.
Humidity errors
Steam, water spray, dripping water or condensation at the sensor, etc. Repeatability and long term
stability are, however, not influenced by these factors even if the probe is exposed to high humidity
or saturation with steam (condensation) over a longer period of time.
Soiling
By dust in the air. The choice of probe filter depends on the amount of soiling at the measuring
point. The filter must be cleaned or replaced periodically.
7 SCALING / ADJUSTMENT / FIRMWARE UPDATE
The following settings can be made with the help of the HW4 software and either the service cable
AC3006 or AC3009:
• New scaling of the outputs
• Adjustment
• Firmware update
A detailed description can be found in the manual, which can be downloaded from our website
www.rotronic.com.
8 PERIODIC CALIBRATION OF THE PROBE / TRANSMITTER
Both the PT100 RTD temperature sensor and the corresponding electronics are very stable and
do not normally need to be changed or calibrated after factory calibration. The long term stability
of the Rotronic Hygromer humidity sensors is typically better than 1 %rh per year. For maximum
accuracy we recommend calibration of the probe about every six to 12 months. More frequent cali-
bration can be necessary in applications where the sensor is exposed to pollutants. The calibration
can be performed by the user himself on site or in the laboratory / workshop. For routine calibra-
tions the probe should be checked at one or two points. The electronics of the transmitter do not
normally require calibration in the field.
They can be checked easily with the help of the probe simulator in the HW4 software package. The
electronics can not be repaired in the field and should be returned to the manufacturer in the case
of problems. For details on calibration, please see the full version of the instruction manual, which
you can download from the internet.
Cleaning or replacing the dust filter (optional)
Depending on the conditions of measurement, the filter should be checked from time to time.
Cor-roded, discolored or clogged filters should be replaced. The probe of the XB32A has a remov-
able filter. Simply exchange the filter.
9 TECHNICAL DATA
Measurement
Humidity/Temperature 0...100 %rh, non-condensing; -100...200 °C
Accuracy ±1.0 %rh, ± 0.2 K @ 23 °C
Output Current or voltage signals
Operation
Temperature -40...85 °C
Humidity 0...100 %rh, non-condensing
www.rotronic.com