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XB OEM
User Manual
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ROTRONIC XB OEM User Manual

E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
XB
Humidity Temperature Transmitter
User Guide
1 of 27
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
2 of 27
Table of contents
Overview...............................................................................................................................................3
1
2 Models ..................................................................................................................................................4
2.1 Ordering codes...................................................................................................................................4
2.2 Dimensional drawings ........................................................................................................................6
3 General description .............................................................................................................................7
3.1 Power supply......................................................................................................................................7
3.2 Measured parameters ........................................................................................................................7
3.3 Calculated parameters .......................................................................................................................7
3.4 Analog output signals.........................................................................................................................7
3.5 Direct RTD option (XB2 and XB3)......................................................................................................8
3.6 Service connector...............................................................................................................................8
3.7 Sensor protection (dust filter) .............................................................................................................8
4 User configurable settings and functions .........................................................................................9
4.1 Function overview ..............................................................................................................................9
4.2 Factory default settings .................................................................................................................... 10
5 Mechanical installation......................................................................................................................11
5.1 General guidelines ...........................................................................................................................11
6 Electrical installation.........................................................................................................................13
6.1 General guidelines ...........................................................................................................................13
6.2 Wiring and terminal block diagrams .................................................................................................14
7 Operation............................................................................................................................................19
7.1 Minimum load requirements for the XB3 with voltage outputs..........................................................19
7.2 XB2 and XB3 transmitters (analog outputs) .....................................................................................19
8 Maintenance .......................................................................................................................................20
8.1 Service cable....................................................................................................................................20
8.2 Location of the service connector (mini USB type)...........................................................................20
8.3 Periodic calibration check.................................................................................................................20
8.4 Cleaning or replacing the dust filter..................................................................................................21
8.5 Validation of the output signals transmission ...................................................................................21
9 Firmware updates ..............................................................................................................................21
10 Technical data....................................................................................................................................22
10.1 Specifications ...................................................................................................................................22
10.2 Dew point accuracy.......................................................................................................................... 24
11 Accessories........................................................................................................................................25
11.1 Configuration and communication software .....................................................................................25
11.2 Service cables..................................................................................................................................25
11.3 Mounting hardware...........................................................................................................................25
11.4 Calibration accessories ....................................................................................................................26
11.5 Dust filter parts .................................................................................................................................26
12 Supporting documents......................................................................................................................27
13 Document releases............................................................................................................................27
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
3 of 27
Applicability:
This manual applies to all instruments of the XB transmitter series with firmware version 1.x, where 1.x can be
1.0, 1.1, etc. Changes to the last digit of the version number reflect minor firmware changes that do not affect the manner in which the instrument should be operated.
1 Overview
The XB transmitter measures temperature, relative humidity and the dew or frost point and is designed for OEM applications. The XB transmitter consists of a probe that is hard wired to a small open board with a 2 m /
6.5 ft cable. Humidity is measured with the ROTRONIC HYGROMER IN-1 capacitive humidity sensor. This sensor offers fast response and exceptional stability, even in high humidity environments. Sensor durability has proven to be excellent in a wide range of applications.
The XB transmitter is suitable for measuring humidity within the range of 0 to 100 %RH and temperature within the range of -100 to 200 °C (-100 to 392 °F) at the probe. At temperature values above 80°C, the maximum humidity to which the humidity sensor can be exposed is gradually limited. Both the probe and sensor survive exposure to temperature within the range of -100 to 200C / -148 to 392F.
The probe of the XB transmitter is equipped with a Pt100 RTD temperature sensor. Data from this sensor is used to compensate the effect of temperature on the humidity sensor so as to maintain accurate humidity measurements over a wide range of temperature values. Depending on the model (see ordering codes), data from the RTD is also used to provide a linear temperature output signal
As an option, the probe of the XB transmitter can be equipped with an additional Pt100 RTD temperature sensor. In that case, the XB transmitter is equipped with a 4-position terminal block for direct connection to the temperature sensor.
Two basic types of electronic circuit are available: XB2: 2-wire, loop powered (4…20 mA current signal) and XB3: 3-wire (voltage or current signal). The analog output signal is linear and can be transmitted over a length of cable to a remote display, recorder, controller or data processing unit. Digital signal processing within the XB transmitter ensures consistent product performance and also facilitates the task of field maintenance:
Based on the ROTRONIC AirChip 3000 digital technology, the XB transmitter series offers the following user functions which can only be accessed with the HW4 software:
User configurable settings Calculation of the dew or frost point Humidity temperature calibration and adjustment Simulator mode Automatic humidity sensor test and drift compensation Sensor failure mode Data recording
The ability for the user to easily update the AirChip 3000 firmware means that instruments of the XB series can be kept up-to-date regarding any future functionality improvement.
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
2 Models
2.1 Ordering codes
Transmitters with analog output signals: XB2 (2-wire) / XB3 (3-wire)
1 2 3 4 5 6
XB20-
XB31-
XB32-
XB33-
XB34-
XB35-
Parameters (analog outputs)
P
B
T
A
2-wire (loop powered), 10 to 28 VDC, 4…20 mA
3-wire, 15 to 40 VDC or 12 to 28 VAC, 0…20 mA
3-wire, 15 to 40 VDC or 12 to 28 VAC, 4…20 mA
3-wire, 5 to 40 VDC or 5 to 28 VAC, 0…1 V
3-wire, 10 to 40 VDC or 8 to 28 VAC, 0…5 V
3-wire, 15 to 40 VDC or 12 to 28 VAC, 0…10 V
0 2
H X X
1 X X
S T
P P 3
P P 5
P P A
X X
1 X
2 X
3 X
4 X
5 X
6 X
7 X
8 X
9 X
Humidity & Dew / Frost point (see range below)
Dew / Frost point and Temperature (see range below)
0…50 °C
10…40 °C
-40…60 °C
-30…70 °C
-40…85 °C
0…100 °F
0…200 °F
0…300 °F
-50…200 °F
Custom range. Specify when ordering
Pt 100 1/3 class B, 4-wire direct connection
Pt 100 1/5 class B, 4-wire direct connection
Pt 100 1/10 class B, 4-wire direct connection
Circuit type, supply voltage and output signal type
Probe cable length and standard probe dimensions
Probe separated by 2 m cable, 15 x 100 mm
Humidity (0...100 %RH) + direct 4-wire Pt100 RTD
Humidity (0...100 %RH) and Temperature (see range below)
Humidity only (0...100 %RH)
Temperature only (see range below)
Standard temperature output ranges
Page
4 of 27
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
5 of 27
1 2 3 4 5 6
1 Standard length + 150 mm
Standard dew / frost point output ranges
S
2
3
4
X X
B X
C X
D X
S C
Notes:
o Output 1: relative humidity or dew point o Output 2: temperature o The dew / frost point range uses the same unit (˚C or ˚F) as the temperature output. The factory default
setting is frost point below freezing.
o Custom range: be sure to clearly specify the desired range at the time of the order. When a special range
has been ordered, the letters ST and SC are used in columns 4 and 7 in the above table. These generic codes will be replaced with a specific code only for quantity and repeat orders
Probe length options
Standard length : 100 mm
Standard length + 300 mm
Standard length + 450 mm
Standard length +600 mm
No calculated parameter
-50…50 (°C / °F - as per temperature output range)
-50…100 (°C / °F - as per temperature output range)
-50…200 (°C / °F - as per temperature output range)
Custom range. Specify when ordering
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
2.2 Dimensional drawings
4 x mounting hole dia: 4.4 mm / 0.173”
Page
Dimensions in mm
Board thickness:
1.7 mm / 0.07”
Clearance bottom: 5 mm / 0.20”
Clearance top (component side): 15 mm / 0.60”
6 of 27
Overall probe length: 116 / 266 mm (4.57 / 10.47”) Diameter: 15 mm (0.59”)
Cable length: 2 m (6.5 ft)
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
7 of 27
3 General description
3.1 Power supply
Depending on the circuit type, the XB transmitter requires the following power supply:
a) XB2 (2-wire, loop powered): 10…28 VDC - depending on the load connected to the output(s). The
minimum supply voltage can be determined as follows:
V min = 10 V + (0.02 x Load*) *Load resistance in ohms.
For the maximum load of 500 , the minimum supply voltage is 10 + (0.02 x 500) = 20 VDC. With both output circuits closed, the maximum current consumption is 40 mA.
b) XB3 (3-wire with analog outputs): 15 to 40 VDC (see note below) or 12 to 28 VAC. With both output
circuits closed, the maximum current consumption is 50 mA.
Note: depending on the type of output signal, the XB3 will operate with the following minimum voltage
0…1 V outputs: 5 VDC or 5 VAC 0…5 V outputs: 10 VDC or 8 VAC 0…10 V outputs: 15 VDC or 12 VAC 0…20 mA or 4 …20 mA outputs: 6 VDC or 5 VAC with 0 load 15 VDC or 12 VAC with 500 load
3.2 Measured parameters
The XB transmitter measures relative humidity with a ROTRONIC Hygromer® IN1 capacitive sensor and temperature with a Pt100 RTD.
3.3 Calculated parameters
Using the ROTRONIC HW4 software, the XB transmitter can be configured by the user to calculate either the dew point or the frost point.
3.4 Analog output signals
XB2 and XB3
With the ROTRONIC HW4 software any of the two analog output signals can be made to correspond to one of the following:
Relative humidity Temperature Dew or frost point
Any output can also be disabled.
The scale of each analog output can be set within the numerical limits of -999.99 and 9999.99.
The D/A converters used to generate the analog output signals feature a 16-bit resolution.
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
8 of 27
The D/A converters used to generate the analog output signals feature a 16-bit resolution and exhibit a small positive offset at the bottom of the signal range as indicated below:.
Signal type Maximum offset at range bottom
0…1 V 3 mV
0…5 V 50 mV
0…10 V 90 mV
0…20 mA 4 µA
4…20 mA No offset
XB3
The ROTRONIC HW4 software allows changing the type of output signal to one of the following: 0…20 mA, 4…20 mA, 0…1V, 0…5V or 0…10V. Both output signals are automatically configured with the same signal type. No calibration or adjustment is required after changing the type of output signal.
In the case of voltage output signals, load requirements apply to the external device or circuit connected to the XB3 transmitter. These requirements are defined in the “Operation” chapter
3.5 Direct RTD option (XB2 and XB3)
The standard XB transmitter is equipped with one Pt100 RTD. When ordered with the direct RTD option, the XB transmitter is supplied with a second Pt100 RTD installed on the probe. This additional RTD is directly connected to a terminal block. (4-wire connection)
3.6 Service connector
The service connector (UART interface with a mini-USB type connector) allows connecting the XB transmitter either to a PC running the ROTRONIC HW4 software or to a probe input of another instrument that is compatible with the HygroClip 2 (HC2) probes. In both cases a service cable is required. See “Maintenance” for the location of the service connector and for the type of service cable to be used.
Connecting the XB transmitter to a PC is used to configure the transmitter, gain access to the transmitter
functions such as humidity and temperature adjustment, read data from the transmitter on the PC and update the AirChip 3000 firmware.
Connecting the XB transmitter to the probe input of another instrument is useful only when the other
instrument has its own display and keypad, and has an internal menu equivalent to the menu of the HP23 hand-held calibrator. The connection allows showing the data measured by the XB transmitter on the other instrument display and also allows using the other instrument internal menu to do for example a humidity and temperature adjustment of the XB transmitter.
3.7 Sensor protection (dust filter)
A dust filter is required to protect the sensors against dust particles and high air velocity. The probe of the XB transmitter is equipped with a with a metal filter base mod. NSP-ME. The filter cartridge must be ordered separately (see Accessories 11.5). Filter cartridge mod. SP-M15 is suitable for most applications.
© 2008; Rotronic AG E-M-XB-V1_10
E-M-XB-V1_10
Document code Unit
Rotronic AG Bassersdorf, Switzerland
XB Humidity Temperature Transmitter User Guide
Instruction Manual
Document Type
Page
9 of 27
4 User configurable settings and functions
The XB transmitter ships configured as specified on the customer order. The analog outputs can be used just as with any conventional humidity and temperature transmitter and most users will never need to use the XB transmitter configurable settings and functions.
Making use of the XB transmitter configurable settings and functions is entirely up to the user and the appropriate settings depend on the user application. We have provided below a short description of the XB transmitter functions and also indicated the factory default settings.
4.1 Function overview
MEASUREMENT ACCURACY AND RELIABILITY
AirChip 3000 Functions Description
► Humidity / temperature adjustment o 1-point or multi-point humidity calibration or adjustment
o 1-point or 2-point temperature calibration or adjustment o Generate a time stamp for calibrations and adjustments o Retain and view last adjustment date and adjustment values o Generate calibration and adjustment protocols
► Automatic humidity sensor test and optional drift compensation
► Data recording The data recording function differs from a true data logging
MEASUREMENT LOOP VALIDATION
AirChip 3000 Functions Description
► Simulator mode Used to make the XB transmitter generate fixed values for the
Tests the humidity sensor for drift caused by contaminants and can be used to automatically apply a correction. The test is automatically carried out at regular intervals of time. Can be configured, enabled, or disabled
The humidity sensor status can be verified either with the HW4 software and is shown as Good, SQ-tuned (corrected for drift) or Bad (defective)
function in the sense that the AirChip 3000 does not time stamp the data. This data recording function can be used to investigate events such as a sensor malfunction as well as to retrieve data that would otherwise be lost
o Start or stop data recording - up to 2000 value pairs (%RH
and temperature). Starting a recording session erases all previously recorded data
o The recording mode and log interval can be specified o When the device is powered off, the recording session is
paused but not ended As long as the recording session has not been ended, the device automatically resumes recording data when powered up again
o The recorded data can be downloaded to a PC with the
HW4 software, time stamped and viewed
humidity, temperature and calculated parameter. Can be configured, enabled or disabled
© 2008; Rotronic AG E-M-XB-V1_10
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