Sensorex TX10 1/8 DIN Manuale utente
pg.1
Operation Manual
TX10 1/8 DIN
Microcomputer Based pH/ORP Controller
11751 Markon Drive Garden Grove, CA. 92841 U.S.A.
pg.2
CONTENTS
GENERAL INTRODUCTION………………………………………..………....................3
INITIAL INSPECTION……...………………..................................................................3
USING THE Sensorex MODEL TX10………...….....................................................................3
A. Mounting procedure.....................................................................................3
B. Front panel....................................................................................................4
C. LCD screen....................................................................................................5
D. Rear connectors...........................................................................................6
E. Measure mode.............................................................................................7
F. Setting mode................................................................................................7
G. pH calibration mode...................................................................................10
H. RmV calibration mode................................................................................11
I. 4~20mA output............................................................................................11
ERROR DISPLAY AND TROUBLESHOOTING……………..……….........................13
pH BUFFERS……………..………..............................................................................15
SPECIFICATIONS……………..………………………………………........................16
WARRANTY……………..………...............................................................................17
pg.3
GENERAL INTRODUCTION
Thank you for selecting the Sensorex Model TX10. The TX10 pH/ORP transmitter is a rugged
microprocessor based instrument assembled in a watertight 1/8 DIN case, designed for use in
laboratories and process control applications.
The system displays pH or ORP or Temperature status in one large LCD screen.
The model TX10 microprocessor performs a self-diagnostic routine every time you turn on the
unit providing you with basic information on the stability of the instrument.
The model TX10 has an isolated 4-20mA analog output, offset and span configurable for the
pH or ORP display.
INITIAL INSPECTION
Carefully unpack the unit and accessories. Inspect for damages made in shipment. If any
damage is found, notify your Sensorex representative immediately. All packing materials
should be saved until satisfactory operation is confirmed.
USING THE SENSOREX TX10 pH/ORP TRANSMITTER ERVIEW
A. Mounting Procedure
1. Make a cutout on any panel, with a thickness of 1/16 inch (1.5mm) to 3/8 inch
(9.5mm). Refer to FIG 1
Figure 1
2. Remove the mounting bracket from the controller and insert the controller into the
cutout. Refer to FIG 2.
Mounting Brackets
Figure 2
pg.4
3. Replace the mounting bracket assembly onto the controller and secure the controller
to the mounting panel. Refer to FIG 3.
Panel Mounting brackets
Figure 3
B. Front Panel
The front panel consists of a 4-digit LCD display and 4 keys.
1. [ MODE ] key:
1a. In the Measure mode, this key will switch the display in sequence from pH,
Temperature, ORP absolute mV, ORP relative mV and back to pH again.
1b. In the Calibration/Setting mode, pressing this key for three seconds will move you
back to the previous parameter in the case when recalibration / resetting is required.
2. [ UP ] key:
2a. In the Calibration mode, pressing this key will show the next possible option. In the
Setting mode, pressing this key will show the next possible option and increases the
numeral increment.
2b. In the Measure mode, pressing this key and [ENTER] key at the same time, the unit
will enter the Calibration mode.
3. [ DOWN ] key:
3a. In the Calibration mode,pressing this key will show the next possible option. In the
Setting mode, pressing this key will show the next possible option and decreases the
numeral increment.
3b. In the Measure mode, pressing this key and [ENTER] key at the same time, the unit
will enter the Setting mode.
4. [ ENTER ] key: In any mode where the user can change the settings, pressing this key
will save the new settings. If no change has been made then pressing this key will just
move the user to the next setting.
pg.5
C. LCD screen
STAND SLOPE
RmV
CAL
6.86 7.00 ATC MAN
pH
12 3 45
12
11
10
9876
C
mA
1. Major LCD display.
2. CAL – This icon will be displayed if the meter is in the Calibration/Setting mode.
3. mA – This icon, when displayed, indicate in the 4 mA or 20mA Setting mode.
4. Ԩ– Temperature and unit display.
5. pH – Unit indicator.
6. STAND – This icon will blink before Buffer 1 calibration. The icon will stay on while
Buffer 1 is being calibrated.
7. SLOPE – This icon will blink before Buffer 2 calibration. The icon will stay on while
Buffer 2 is being calibrated.
8. 6.86 – The 6.86 buffer group: 6.86, 4.00, 9.18.
9. 7.00 – The 7.00 buffer group: 7.00, 4.01, 10.01.
10. ATC –This icon will be displayed when a temperature probe is connected.
11. MAN –This icon will be displayed when a temperature probe is not connected.
12. RmV – Unit indicator
pg.6
D. Rear connectors
100~230VAC
LNE
mA
+-
+V -V 10k TH Pt 1000
GND
INPUT RFF
1. Connect the AC line to the rear of the instrument. The model 3631 can be used with
100~240V AC at 50/60 HZ. Make sure the EARTH connector is connected to the earth lead
of the AC power line.
2. Set the proper load to the 4-20mA-output connector. Make sure that the load impedance
is less than 500 Ohms.
3. V+ (5VDC) and V- (5VDC) output to provide excitation voltage for pH/ORP pre-amplifier
only.
【
Note
】
:
(1) Make sure that the power is unplugged before wiring your probes etc.
(2) Make sure you connect the AC power cord to the correct AC terminals. Connecting
incorrectly may damage the unit permanently.
pg.7
Measure mode
Turning on the unit will always display the Measure mode. This instrument is designed to
provide 4 distinct measurements:
7.00 ATC
pH
ATC
C
mV
RmV
MODE MODE
MODE
MODE
1. pH – The degree of acidity or alkalinity of the solution.
2. Temperature – Current temperature of the solution.
3. ORP mV – A measurement of absolute ORP mV.
4. ORP RmV– A measurement of relative ORP mV. The offset value at the RmV calibration
will be added to the ORP absolute value to display the ORP relative value.
【
Note
】
:
ORP relative value range: ORP absolute value - 1000mV to ORP absolute value + 1000mV
Pressing [MODE] key in the Measure mode will cycle the display from the four modes above.
E. Settings mode
Pressing [DOWN] key and [ENTER] key at the same time, the meter will enter into the Setting
mode.
1. Temperature compensation select:
+ENTER
ENTER ENTER ENTER
pH buffer 1 select
CAL
ATC
CAL
ATC
CAL
MAN
Pressing [UP] key or [DOWN] key in this screen will cycle the display from 01 (Thermistor:
10k ohm), 02 (Resistor: PT1000), 03 (Manual) modes above.
Select the preferred temperature compensation mode, press [ENTER] key to save, and
enter the next setting screen.
pg.8
2. pH buffer 1 select:
Pressing [UP] key or [DOWN] key in this screen will cycle the display from 7.00, 6.86 buffer
above.
Select the preferred buffer, press [ENTER] key to save, and enter the next setting screen.
Temperature compensation select
pH buffer 2 select
ENTER
ENTER ENTER
CAL
6.86
pH
CAL
7.00
pH
Buffer 1 7.00
Relay control parameters select
ENTER
CAL
7.00
pH
CAL
7.00
pH
ENTER ENTER
Buffer 2 6.86
Relay control parameters select
ENTER
ENTER ENTER
CAL
6.86
pH
CAL
6.86
pH
Pressing [UP] key or [DOWN] key in this screen will cycle the display from 4.01, 10.01 (or
4.00, 9.18) buffer above.
Select the preferred buffer, press [ENTER] key to save, and enter the next setting screen.
【
Note
】
: The pH buffer 2 is either 4.01 or 10.01 if select 7.00 buffer at pH buffer 1 select
screen. The pH buffer 2 is either 4.00 or 9.18 if select 6.86 buffer at pH buffer 1 select
screen.
pg.9
3. 4 mA output setting:
mA output parameters select
20mA output setting
ENTER
ENTER
CAL CAL
mA
pH
Pressing [UP] key or [DOWN] key in this screen to adjust the 4 mA value, this value is used
for scaling the 4-20mA analog output.
Pressing [ENTER] key to save, and enter the next setting screen.
4. 20mA output setting:
4mA output setting
Measure mode
ENTER
ENTER
CAL CAL
mA
pH
Pressing [UP] key or [DOWN] key in this screen to adjust the 20 mA value, this value is
used for scaling the 4-20mA analog output.
pg.10
E. pH Calibration mode
The TX10 uses 2-point calibration for pH. The first point must be 6.86/7.00, and the second
point can either be 4.00/4.01 or 9.18/ 10.01.
In the pH Measure mode, pressing [UP] key and [ENTER] key at the same time to allow the
meter to go to the pH Calibration mode.
1. Buffer 1 (STAND) calibration:
Buffer 2 calibration
+ENTER ENTER
STAND
CAL
7.00
pH
STAND SLOPE 7.00
pH
HI2
STAND
CAL
7.00
pH
Enter into the pH calibration mode, the “STAND” icon will flash, the unit is ready to be
standardized at the first buffer. Rinse the pH and ATC/Temp probes in distilled water and
immerse them in the first buffer solution (either 7.00 or 6.86). Allow temperature reading
to stabilize, then press “ENTER” key to calibrate. The “pH” icon will flash until the unit
detects a stable reading. Once the unit calibrates the first point, the “SLOPE” icon will
flash. The unit is ready to be sloped at the second buffer.
2. Buffer 2 (SLOPE) calibration:
Rinse the pH and ATC/Temp probe in distilled water and immerse them in the second
buffer solution (either 4.00/4.01 or 9.18/10.01). Allow temperature reading to stabilize,
then press “ENTER” key to calibrate. The “pH” icon will flash until the unit detects a stable
reading. Once the unit calibrates the second point and the unit will automatically exit the
calibration mode and goes to the pH Measure mode. Dual point calibration is complete.
ENTER
Buffer 1 calibration
Measure mode
STAND SLOPE
CAL
7.00
pH
STAND SLOPE
CAL
7.00
pH
Indice
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