FTC200-OEM
Fast Thermal Conductivity Analyzer
Operating Manual
Version 1.04 © MessKonzept GmbH
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
Content
1.
Description .................................................................................................. 3
2. Measuring gases and ranges ....................................................................... 4
3. Purchased parts package ............................................................................ 4
4. Electrical Connection .................................................................................. 5
5. Pneumatic Connection................................................................................ 6
6. Mounting .................................................................................................... 6
7. Anaolog Output .......................................................................................... 7
8. FTC200 – Serial communication ................................................................. 8
9. Calibration ................................................................................................ 10
10. Specifications ............................................................................................ 10
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
1.
Description
The FTC200-OEM is a highly precise and stable Thermal Conductivity Detector (TCD). It is
designed for the use as an OEM detector. Since it is not equipped with housing it has protection
class 00 and no electro-magnetic shielding. It is not designed for the use in hazardous areas. As it is
true for any OEM product, all this is in the hands of our customers.
For indication of the signal a 0 to 10V analog output is provided. For internal calibration,
configuration and digital indication of the signal a TTL-level RS232 communication is required. For
testing purposes we offer a RS232 to TTL level converter as well as two small windows programs
for a PC in order for perform Offset and Gain calibration.
The thermal conductivity of a gas mixture depends on the individual gas components and on the
composition of the mixture. Under certain conditions, therefore, the concentration of individual
gas components can be determined by measuring the thermal conductivity. In other cases the
identification of certain properties of gases is of special interest e.g. for quality control or safety
reasons. Often these properties are related to the thermal conductivity and thereby identified. The
concentration can be determined with high precision if one of the following conditions is met:
The gas mixture consists of only two components, for example measuring CO2 in N2 or
H2 inN2.
The gas mixture consists of more than two components but only concentrations of two
components vary.
The thermal conductivity of two of three constituents is similar, e.g. measuring H2 or He
or CO2 in a mixture of O2 and N2.
In case, a cross sensitive gas may be measured separately and the signal of this
measurement is fed into FTC200 where an internal routine compensates the cross
sensitivity.
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
2.
Measuring gases and ranges
Measuring
Gas
H2
H2
H2
H2
H2
He
He
CO2
CO2
Ar
Ar
CH4
CH4
O2
O2
N2
N2
NH3
NH3
CO
SF6
Carrier Gas
Basic range
Smallest range
Smallest suppressed
zero range
N2 or air
Ar
He
CH4
CO2
N2 or air
Ar
N2 or air
Ar
N2 or air
CO2
N2 or air
Ar
N2
Ar
Ar
CO2
H2
N2
H2
N2 or air
0% - 100%
0% - 100%
20% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 60%
0% - 100%
40% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 100%
0% - 0.5%
0% - 0.4%
20% - 40%
0% - 0.5%
0% - 0.5%
0% - 0.8%
0% - 0.5%
0% - 3%
0% - 10%
0% - 3%
0% - 2%
0% - 1.5%
0% - 15%
0% - 2%
0% - 3%
0% - 4%
0% - 5%
0% - 10%
0% - 2%
0% - 2%
98% - 100%
99% - 100%
85% - 100%
98% - 100%
98% - 100%
97% - 100%
98% - 100%
96% - 100%
96% - 100%
80% - 100%
96% - 100%
97% - 100%
85% - 100%
97% - 100%
97% - 100%
96% - 100%
95% - 100%
60% - 100%
99% - 100%
96% - 100%
Other gases and ranges on request.
3.
Purchased parts package
•
•
•
•
FTC200-OEM TC-Detector
12 pole JST-Connector with 1m open end wires
8 pole JST-Connector with 1m open end wires
7 pole JST-Connector with 1m open end wires
•
optional: RS232-TTL-converter and PC tools for calibration
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
4.
Electrical Connect ion
Basic connection diagram FTC200-OEM
RS232-COM-Port
9P-SUBD-M
Ext. Power Source
TTL-RS232-Converter
+24V, 1A
Pin 1 Pin 2 - TxD
Pin 3 - RxD
Pin 4 Pin 5 - GND
Pin 6 Pin 7 Pin 8 Pin 9 -
Fuse 1A slow
-GND
TxD
RxD
GND
yellow
+5V
GND
blue
X5
1 - GND
2 - Power +24V
3 - Heater +24V
4 - Heater GND
5 - GND
6 - DOWN
7
8 - R3-TTL
9 - R2-TTL
10 - R1-TTL
11 - DIN-TTL
12 - +5V
FTC200
white
brown
X6
8 - RxD-TTL
7 - TxD-TTL
6
5
4
3
2
1
blue
brown
white
grey
X7
1 - AIn 1
2 - GND
3 - AIn 2
4 - GND
5 - AOut 1
6 - GND
7 - AOut 2
Gas out
yellow
blue
AnalogOut 1
+ 0-10 Volts
GND
Gas in
Connector X5:
Pin 01 – GND=Ground
Pin 02 – Power +24VDC = Power supply electronic, +24Volts
Pin 03 – Heater +24VDC = Power supply heater, +24Volts
Pin 04 – Heater GND
Pin 05 – GND
Pin 12 – +5VDC=+5Volts from internal voltage regulator
Connector X6:
Pin 07 – TxD-TTL = Serial TxD, TTL-level
Pin 08 – RxD-TTL = Serial RxD, TTL-level
Connector X7:
Pin 01 – AIn1 = Analog input, 0-10Volts, 50kOhm
Pin 02 – GND
Pin 03 – AIn2 = Analog input, 0-10Volts, 50kOhm
Pin 04 – GND
Pin 05 – AOut1 = Analog output, 0-10Volts, RL>1kOhm
Pin 06 – GND
Pin 07 – AOut2 = Analog output, 0-10Volts, RL>1kOhm
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
5.
Pneumatic Connection
Looking at the FTC220-OEM on the side of gas tubes with the boards up, the gas inlet is on the
right hand side. Gas inlet and outlet tubes – as well as the body - are stainless steel (LF316ti). The
outer diameters of the tubes are 6mm. The gas must not contain dust, condensate and potentially
condensing matter. The inner gas duct is heated up to 60°C (hotter versions on demand)
depending on mounting, thermal insulation and sample flow and temperature, condensation may
occur from the actual ambient temperature up to 60°C. With proper heated lines and connections a
dew point up to 55°C is permissible.
!!! Important Notice !!!
Condensate will destroy the sensing element immediately (condensate tolerant version on
request).
Optimal flow is in between 60l/h and 100l/h. If the flow is kept stable during measurement as well
as during calibration a range from 10l/h to 150l/h is possible.
6.
Mounting
The bottom view of the FTC200-OEM shows four M3 thread holes which may be used for the
fixation of the detector. Use insulating spacers (min. 4mm) and stainless steel screws in order to
minimize heat flow from the 60°C hot detector body. For water-tight bulkhead mounting two
spacer and two M8 nuts are available on request.
After mounting check the power consumption at lowest expectable ambient temperature in steady
state (after approx.1h). Power consumption may not exceed 500mA. In case it is more improve the
insulation.
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
Anaolog Output
The analog output is a no isolated 0 to 10,5V output. Maximum load is 1kOhm.
Due to the small drift, the signal may be out of the measuring range. For this reason, the measuring
range 0-100 vol.% is represented by 1-10 Volts. So the analog signals may represent from -7 to 105
vol.%.
Analog output is converted back to gas concentration with the following formula:
GasConcentration[vol.%] = (AnalogOutput [Volt] – 1Volt) / 0,9
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
FTC200 – Serial communication
7.
The basic parameter for serial polling is the Parameter P0, which returns the actual measured
concentration in ppm. Polling is achieved by sending the string like “P0?” followed by CR ASCII
command (CHR(13)). In hexadecimal notation the sequence is:“0x50303F0D”.The answer is a string
containing the questioned parameter, its value and a system status byte. This could be a string like
“P0=F3.041e+03:0x1C04” followed by CR command. “P0” is the questioned parameter. The
sequence after the character “F” until the colon ”:” is the questioned value “3.041e+03” in
exponential notation (here 3041 ppm).
Parameter Min
Type
Unit
Access
Name
Comment
P0
0
Max
1,00E+06
F32_4e
ppm
RO
Compound ppm
Output signal in ppm
P3
0
1000000
F32_2f
mV
RO
TC Average
Raw signal in mV
P11
0
32000
1200
F32_0f
s
RW
Warmup Time
Heat up after commissioning
P16
0
100
1
F32_2f
s
RW
T90 Response
Adjustable output averaging
P29
0
1023
0
F32_0f
RW
Bridge Bal.
Membrane temp. setting
P30
0
0
0
F32_2f
RO
HW Version
Hardware version number
P31
0
0
0
F32_3f
RO
SW Version
Firmware version number
P32
0
0
0
F32_60f
RO
SW Date
Firmware date
P39
0
100
0
F32_0f
RW
Misc. Action
Triggers internal routines
P41
0
255
1
F32_0f
RW
Sensor Type
Sensor type
P42
0
0
0
F32_60f
RW
Sensor Date
Sensor date
P43
160
280
200
F32_2f
Ohm
RW
Rm10+Rm20
Membrane resistor at 0°C
P44
180
300
220
F32_2f
Ohm
RW
Rt10
Comparator resistor at 0°C
P45
180
300
220
F32_2f
Ohm
RW
Rt20
Heat drain temp. sensor at 0°C
P52
10
100
60
F32_1f
°C
RW
Block Set T
Heat drain temperature set point
P53
-100
100
0
F32_1f
°C
RO
Block Temp.
Heat drain temperature
P54
0
2
1
F32_0f
RW
R1 Mode
Alarm 1 operation mode
P55
0
1,E+06
100
F32_1f
ppm
RW
R1 Threshold
Alarm 1 threshold value
P56
0
10
1
F32_1f
%
RW
R1 Hyst.
Alarm 1 hysteresis
P57
0
5
1
F32_0f
RW
R2 Mode
Alarm 2 operation mode
P58
0
1,E+06
500
F32_1f
ppm
RW
R2 Threshold
Alarm 2 threshold value
P59
0
10
1
F32_1f
%
RW
R2 Hyst.
Alarm 2 hysteresis
P60
0
1,E+06
0
F32_1f
ppm
RW
Offset Gas
Offset gas concentration set
P61
0
1,E+06
1000000
F32_1f
ppm
RW
Gain Gas
Gain gas concentration set
P87
-1,E+06
1,E+06
0
F32_6f
ppm
RW
PolyOffset
Offset for gas linearized in user polyn.
P88
-10
10
1
F32_6f
RW
PolyGain
Gain for gas linearized in user polyn.
P89
0
10000
~1920
F32_3f
mV
RW
TC at N2
Raw signal in mV at N2
P92
0
10000
~1950
F32_3f
mV
RW
TC at O2
Raw signal in mV at O2
P94
0
10000
~1640
F32_3f
mV
RW
TC at Ar
Raw signal in mV at Ar
P110
-1,E+06
1,E+06
0
F32_1f
ppm
RW
Offset P12
Offset for gas linearized in polyn. 12
P125
-10
10
1
F32_6f
RW
Gain P12
Gain for gas linearized in polyn. 12
P153
0
10
0
F32_0f
RW
AOut1-Param
Routing of Analog Out 1
P154
-1,E+06
1,E+06
0
F32_3f
RW
AOut1-Offset
Analog Out1 offset
P155
-1000
1000
1
F32_6f
RW
AOut1-Gain
Analog Out1 gain
P156
0
10
0
F32_0f
RW
AOut2-Param
Routing of Analog Out 2
P157
-1,E+06
1,E+06
0
F32_3f
RW
AOut2-Offset
Analog Out 2 offset
P158
-1000
1000
1
F32_6f
RW
AOut2-Gain
Analog Out 2 gain
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Default
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
V
V
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
Starting internal functions like calibration are initiated by writing a command value to parameter
P39. The command values for parameter P39 are as follows:
0 – Do nothing
21 – Calculate and save “CALIBRATION OFSET GAS”
1 – Restart System
22 – Calculate and save “CALIBRATION GAIN GAS”
2 – Reset to factory settings
50 – Load calibration values from hidden “FLASH-RAM”
6 – Set alarms “ACTIVE OFF” 51 – Save calibration values to hidden “FLASH-RAM”
7 – Set alarms “ACTIVE ON”
For example, calibrating the OFFSET is performed by sending “P39=F21” followed by the ASCII
CR command. Attention before starting the calibration routine, make sure that the proper offset
gas – previously defined in parameter P60 – has been applied for a sufficient time to the detector.
The command “P39=F22” followed by CR will start the gain calibration routine. The proper gain
gas – previously defined in Parameter P61 - must have been applied to the detector for a
sufficient time.
!!! Important Notice !!!
Never start a Gain calibration without a prior Offset calibration. In many applications offset
calibration alone is sufficient for a proper performance of the instrument.
The answer after initiation of Offset calibration is “P39=F21:0x1C04” where the status byte can be
different. After processing the demanded routine the command value of the respective
parameter is set back to “0”.
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
8.
Calibration
For Offset calibration apply the proper offset gas – previously defined in parameter P60 – to the
detector. Wait until the indication is stable. Then press the calibration button. The string
“P39=F21” followed by CR is send and the Offset calibration routine is performed. The signal is
averaged for a period of 10 seconds, calculation is done and the result is stored.
The proper gain gas – previously defined in Parameter P61 - must be applied to the detector until
indication is stable. Pressing the calibration button string “P39=F22” followed by CR is sent and
will start the gain calibration routine.
!!! Important Notice !!!
Never start a Gain calibration without a prior Offset calibration. In many applications offset
calibration alone is sufficient for a proper performance of the instrument.
9.
Specifications
Dimensions with connectors; weight
Power supply
RS232 - Baudrate / Data
Ambient temperature range
Linearity
Warm up time
Flow rate
T90-time
Noise
Drift at zero point
Repeatability
Error due to change of ambient temperature
Error due to change of flow at 80l/h
Gas pressure
Error due to change of pressure (above 800hPa)
B=64mm, H=40mm, D=75mm; ~ 350g
24V DC (18V to 36V), 700mA
19200 / 8bit
-5°C to 50°C, other on request
< 1% of range
Approx. 30min; 1h for small ranges
40l/h-150l/h, recommended 60l/h to 80l/h
<1sec at flow rate higher 60l/h
< 1% of smallest range
< 2% of smallest range per week
< 1% of range
< 1% of smallest range per 10°C
< 1% of smallest range per 10l/h
Max. 4000kPa (40 bar)
< 0.5% of smallest range per 10hPa
The above given specifications are guideline values for orientation. They may differ for certain gas
compositions.
Adresse:
MessKonzept GmbH
Niedwiesenstrasse 33
60431 Frankfurt a. M.
Germany
Kontakt:
Tel.: +49 69 530564 44
Fax: +49 69 530564 45
info@messkonzept.de
www.messkonzept.de
Bank: Frankfurter Volksbank
Kto.-Nr. 7000903005
BLZ 501 900 00
Swift Code: FFVB DE FF
IBAN DE 03501900007000903005
Geschäftsführer:
Dr. Axel-Ulrich Grunewald
Eingetragen am AG Frankfurt a.M.
HRB 49940
Umsatzsteuer ID: DE 211207233
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