TECPEL 870 User manual

Open\Display\Ghartgraph
Button Description
[Exit] To exit TECPEL 870 application.
ⅢSetup, Start & Exit on Software
Quick Start at the TECPEL870
1. Install the RS-232 cable between PC’s Com port and TECPEL 870’s RS-232 port.
Please make sure:
- The RS232 cable connector (to meter) faced up with panel.
- Physical Com port number has to be the same as setup in software.
2. Turn the TECPEL 870 on.
At the PC
1. Open the TECPEL870 software by double-clicking on the icon SETUP.exe.
2. Please double-clicking TECPEL 870 on the file C:\TECPEL 870\ to start the TECPEL 870
application.
C. Quick Exit
1. Click Exit to exit TECPEL 870 application.
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Operation Manual
TECPEL 870

TABLE OF CONTENTS PAGE
1. Introduction...........................................................................................................................1
2. General .................................................................................................................................1
3. Specifications .........................................................................................................................1
4. Front Panel Description........................................................................................................2
4.1 Push Button functions......................................................................................................2
4.1.1 “HLD” Button........................................................................................................2
4.1.2 “MAX/MIN” Button..............................................................................................2
4.1.3 “pH/mV” Button....................................................................................................2
4.1.4 “MEAS” Button.....................................................................................................3
4.2 Switch Functions..............................................................................................................3
4.2.1 “°C/°F” Switch .......................................................................................................3
4.2.2 “CAL” Switch.........................................................................................................3
5. pH Temperature Compensation...........................................................................................3
5.1 Temperature Compensation Mode.................................................................................3
5.1.1 Automatic Temperature Compensation...............................................................3
5.1.2 Manual Temperature Compensation ...................................................................3
6. Calibrating Procedure ..........................................................................................................3
6.1 pH Calibration With Automatic Temperature Compensation(ATC)..........................3
6.2 pH Calibration With Manual Temperature Compensation(MTC) .............................4
6.3 Temperature Calibration ................................................................................................6
7. Measuring Procedure............................................................................................................7
7.1 pH Measurement..............................................................................................................7
7.2 mV Measurement.............................................................................................................7
8. pH Electrode Maintenance...................................................................................................7
8.1 Cleaning the pH Bulb.......................................................................................................7
8.1.1 Protein Contamination ..........................................................................................7
8.1.2 Oil Contamination..................................................................................................7
8.2 Recondition the pH Bulb.................................................................................................7
9. Trouble Shooting...................................................................................................................8
10. Battery Replacement...........................................................................................................8
11. Cleaning ...............................................................................................................................8
ⅠInstall the TECPEL 870 Software
1. Run setup.exe on your TECPEL 870 software disk.
2. Change the path if necessary or choose “Finish” button to install program directly.
Note:
1. Check the TECPEL870 software disk for virus before installation.
2. System required: 80486-33 with 16MB RAM or better.
ⅡTECPEL 870 Software Operate manual
File
¾Print Window Print Main Window
Open\Display\List
Button Description
[FILE NAME] 1. DEFAULT-saving: the file name saved with time.xls
Such as: C:\ TECPEL 870\data\06161133.xls.
This file was saved at 11:33 am. June 16.
2. User-saving: the file name saved by user.
[INTV] Enter the number of second between recording input reading.
[LIST] Enter the number of message history then view the message by
shifting bar.
[CLR] Clear the message window.
[REC] Start the recording.
[OFF] Stop the recording.
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9. Trouble Shooting
? Power on but no display: Check the battery are in place and making good contact or correct
polarity, replace a new battery.
? Unstable reading: Clean the probe and recalibrate or make sure sample entirely covers the sen-
sor, or replace a new probe and re-calibrate if you find a broken probe.
? Slow response: Clean probe by immersing the electrode in tap water for 10-15 minutes, then
thoroughly rinse with distilled water or use a general purpose electrode cleaner.
? LCD show E2 at ATC Range: The temperature of solution over 100°C (212°F).
? LCD show E3 at ATC Range: The temperature of solution under 0°C (32°F).
10. Battery Replacement
1. Power is supplied by three 1.5V(AAAsize) batteries.
2. The “ ” appears on the LCD display when replacement is needed. To replace the batteries,
remove the screw from the back of the meter and lift off the battery cover.
3. Install three 1.5V batteries.
4. When not use for long time remove battery.
5. Don’t keep in place with high Temp. or high humidity.
11. Cleaning
Periodically wipe the case with a damp cloth and detergent, do not use abrasives of solvents.
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Ver. 1.1 06/20/07
1. Introduction
yThis instrument is a portable easy to use 3 ½ digit, compact-sized pH/mV and temperature me-
ter.
yDual display pH (mV) & Temperature.
yAuto power off function to extend battery life.
yAutomatic Temperature Compensation and Manual Compensation.
yRS 232 Interface with Windows Software.
2. General
Low battery indication: The “ ” is displayed when the battery voltage drops below the
operating level.
Accuracy: Stated accuracy at 23°C±5°C (79°F±9°F), < 70% relative humidity.
Operating environment:
Meter: 0°C to 50°C (32°F to 122°F) at < 70% relative humidity.
pH electrode: 0°C to 80°C (32°F to 176°F).
Storage environment: -20°C to 60°C (-4°F to 140°F) at < 80% relative humidity with battery
and pH electrode removed form meter.
Measurement rote: 1 time per second, nominal.
EMC-instrument unspecified for use in EMC field ≥0.5V/m.
Battery: 3 pcs 1.5V (AAAsize) UM-4 R03.
Battery life: 100 hours typical with carbon zinc battery.
Dimensions: 155.5mm(H) x 48mm(W) x 35mm(D).
Weight: 180g.
Accessories: Instruction manual, Software, Batteries, RS232 cable, pH4.01, pH7.00 and
pH10.01 buffer solution, pH electrode, Temperature probe, screwdriver.
The screwdriver: It is used to select temperature in °C or °F and CAL position.
Option Accessories: pH electrode, pH4.01, pH7.00 and pH10.01 buffer solution, Carrying case.
3. Specifications
Accuracy stated at ambient temperature 18 to 28°C(65 to 82°F), <70% R.H.
Temperature Coefficient: 0.1 times the applicable accuracy per °C from 0°C to 18°C and 28°C to
50°C(32°F to 64°F and 82°F to 122°F)
Measurement Range Resolution Accuracy
pH 0 .00 to 14.00 0.01pH ±0.03pH*
mV -1000 to 1000mV(Auto) 0.1mV/1mV ±(0.5% rdg+2dgts)
Temp(°C) 0 to 80°C 0.1°C ±1°C
Temp(°F) 32 to 176°F 0.1°F ±2°F
*Not include pH electrode error
Input impedance: 1012Ω
Note: Probe can’t be interchanged.
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4. Front Panel Description
1. LCD: Measured values, unit, symbols and decimal points are displayed.
2. Input Socket: BNC connector for pH and mV.
3. Input Socket: Earphone (3.5mm) jack for temperature plug.
4. Input Socket: Earphone (2.5mm) jack for RS232 cable.
5. Push Buttons: Button for controlling meter.
6. Push Button: Turn on/off meter.
7. CAL Switch: Slide the switch to right to enter calibration mode.
8. °C/°F Switch: Slide the switch °C/°F to select the temperature unit.
4.1 Push Button functions
4.1.1 “HLD” Button:
Press the “HLD” button to enter the data hold mode, the “H” annunciator is displayed at
the top-right of display. When data hold mode is selected, the pH meter held the present
readings and stops all further measurements. Press the “HLD” button again to cancel data
hold mode, causing pH meter to resume taking measurements.
4.1.2 “MAX/MIN” Button:
Press the “MAX/MIN” button to enter the MAX, MIN, MAX-MIN, AVG recording
mode. (displays the Maximum reading, Minimum reading, “MAX-MIN” reading and
“AVG” reading in record mode)
In this mode, press “HLD” button to stop recording, all values are frozen, press “HLD”
button again to restart recording. In this mode, the APO function and other buttons are dis-
abled, excluding “HLD” and Back-light buttons. Press and hold down the “MAX/MIN”
button for more than 2 seconds to exit the MAX/MIN function.
4.1.3 “pH/mV” Button:
It built in mV measuring function, letting you make ion-selective,
ORP(oxidation-reduction potential), and other precise mV measurements. Pressing
“pH/mV” button to change measurement range between “pH” and “mV”.
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7. Measuring Procedure
7.1 pH Measurement
Calibrate the instruments and pH electrode before measuring.
1. Connect the combination pH electrode to the BNC socket.
2. Power on the instrument by pressing the “MEAS” button.
3. If the operation is under the “ATC” then please refer 5.1.1 Automatic Temperature com-
pensation mode.
4. If the operation is under the “MTC”, (take the 3.5 mm temperature plug away) then
please refer 5.1.2 Manual Temperature compensation mode.
5. Place the electrode into the measured solution, the instrument will display the pH value.
6. After making the measurement, please rinse the electrode with distilled water.
7.2 mV Measurement
The instrument builds in mV measuring function letting you make ORP or other precise
mV measurements.
1. Power on the instrument by pressing the “MEAS” button and pressing pH/mV button to
change unit between “pH” and “mV”.
2. The meter will show the mV value on the display.
8. pH Electrode Maintenance
The proper way of using and protecting the electrode, it will prolong the life of the glass
membrane. If your pH electrode is exhibiting by slow response, continuous drift, or erratic
readings, follow the procedures listed below.
8.1 Cleaning the pH Bulb
8.1.1 Protein Contamination:
Soak the electrode bulb/tip in a 10% solution of pepsin for 30 minutes. Rinse with deion-
ized water and soak the electrode in pH7.00 buffer for two hours before using.
8.1.2 Oil Contamination:
Wash the electrode with a 50% water-acetone solution. Do not soak the electrode in the
acetone solution, or it will deteriorate the bottom seals of the plastic electrode, Rinse with
deionized water and soak the electrode in pH7.00 buffer for two hours before using.
8.2. Recondition the pH Bulb
Only resort to this procedure if the preceding maintenance and cleaning procedures fail to
restore acceptable electrode performance. Rinse immediately with deionized water and soak
in pH7.00 buffer for two hours before using.
Caution
To prevent permanent damage, care should be taken to prevent liquid permeating the pH
meter. Meanwhile, the batteries should be taken out if user will not use the meter for a long
period. Also, to choose the fitted pH electrode is required.
Please always keep the pH glass bulb wet by 4M KCL.
Always rinse the pH electrode and reference junction in de-ionized water before next use.
Never touch or rub glass bulb for lasting pH electrode life.
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6.3 Temperature Calibration:
1. Select the function in mV and connect the temperature plug.
2. Sliding the “CAL” switch to right to enter calibration procedure.
3. Put pH electrode into a standard which is 25.0±10°C (or 77.0±18°F) and the temperature
is stable, if the temperature is inaccurate, LCD will show E5, please check value of tem-
perature.(Fig-13)
4. Waiting for the reading to be stable. (Fig-14)
5. Press and hold down “SET” button for more than 2 seconds to enter the temperature cali-
bration, and the sub (Temp.) display blanking, (Fig-15)
6. The preset value is 25.0°C (or 77.0°F) or user can press “S” or “T” button which are
printed in white sign to increase or decrease the determined value in LCD. Press and hold
down “SET” button for more than 2 seconds to complete 25.0°C (or 77.0°F) calibration,
and LCD will show SA. (Fig-16, Fig-17)
7. Put pH electrode into a standard which is 70.0±10°C (or 158.0±18°F) and the
temperature is stabled, repeat steps 3 to 6.
8. If you complete steps 1 to 7, the LCD will show CAL(main display) and End(sub dis-
play). (Fig-18)
9. Sliding the “CAL” switch to left to leave calibration procedure.
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(Fig-16) (Fig-17)
(Fig-13) (Fig-14) (Fig-15)
(Fig-18)
4.1.4 “MEAS” Button:
It can turn on or off the meter by pressing “MEAS” button, power is automatically turn
off if no operation for a period of 10 min.
4.2 Switch Functions
4.2.1 “°C/°F” Switch:
It can select the temperature unit by sliding the switch. If intend to measure the “°C”,
then slide the switch to left. If intend to measure the “°F”, then slide the switch to right.
4.2.2 “CAL” Switch:
It can enter the calibration procedure by sliding the switch to right.
5. pH Temperature Compensation
Enable the meter to read solutions at various temperatures, the meter will make the cor-
rect electrode’s temperature dependency to measure the pH value. The compensation may
be manual with two buttons adjustment on the meter, or it may be automatic with pH elec-
trode’s temperature sensor immersed in test solution.
5.1 Temperature Compensation Mode:
5.1.1Automatic Temperature Compensation:
Connecting the 3.5mm temperature plug into earphone and the pH function will be tem-
perature compensated automatically.
5.1.2 Manual Temperature Compensation:
Take the 3.5mm temperature plug away then press and hold down the “SET” button
which are printed in white word on the overlay for more then 2 seconds to enter tempera-
ture compensation mode between 0.0°C and 100.0°C (32.0°F to 212°F). The preset tem-
perature is 25.0°C (77.0°F), press “S” or “T” which are printed in white sign to increase
or decrease the com
p
ensation temperature. Pressing and hold down “SET” button more
than 2 seconds to complete the temperature.
6. Calibration Procedure
6.1 pH Calibration With Automatic Temperature Compensation(ATC):
1. Connect the 3.5mm temperature plug into earphone. Select the function in pH(ATC)/ °C.
(or °F) Slide the switch °C/°F to select the temperature unit.
2. Sliding the “CAL” switch to right to enter calibration procedure.
3. Put pH electrode into buffer solution pH4.01 and agitate the buffer solution.
If the solution is inaccurate, LCD will show E4, please check value of buffer solution.
(Fig-1)
4. Wait for the reading to be stable. (Fig-2)
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(Fig-1) (Fig-2)

5. Press and hold down “SET” button for more than 2 seconds to enter the pH4.01 mode,
and the main (pH) display blanks. (Fig-3)
6. The preset value is pH4.01 and user can press “S” or “T” button to enter determine
value in LCD. Press and hold down “SET” button for more than 2 seconds to complete
the pH4.01 calibration, and LCD will show SA. (Fig-4, Fig-1)
7. Rinse electrode and blot with lint-free tissue.
8. Put pH electrode into buffer solution pH7.00, repeat steps 3 to 7.
9. Put pH electrode into buffer solution pH10.01, repeat steps 3 to 7.
10. If you complete steps 1 to 9, the LCD will show CAL(main display) and End(sub dis-
play). (Fig-5)
11. Sliding the “CAL” switch to left to leave calibration procedure.
6.2 pH Calibration With Manual Temperature Compensation(MTC):
1. Take the 3.5mm temperature plug away. Select the function in pH(MTC)/°C. (or °F)
2. Sliding the “CAL” switch to right to enter calibration procedure.
3. Put pH electrode into buffer solution pH4.01 and agitate the buffer solution, if the solu-
tion is inaccurate, LCD will show E4, please check value of buffer solution. (Fig-6)
4. Waiting for the reading to be stable. (Fig-7)
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(Fig-3) (Fig-4)
(Fig-6) (Fig-7)
(Fig-5)
5. Press and hold down “SET” button for more than 2 seconds to enter the pH4.01 calibra-
tion procedure, and the sub(Temp.) display blanking. (Fig-8)
6. The preset value is 25.0°C (77.0°F) and user can press “S” or “T” buttons which are
printed in white sign to increase or decrease determined value in LCD. Press and hold
down “SET” button for more than 2 seconds to complete the temperature of pH4.01 cali-
bration, and LCD will show SA(Fig-9), then the main display blanking. (Fig-10)
7. The preset value is pH 4.01 and user can press “S” or “T”buttons which are printed in
white sign to increase or decrease determined value in LCD. Press and hold down “SET”
button for more than 2 seconds to complete pH4.01 calibration, and LCD will show SA.
(Fig-9, Fig-11)
8. Rinse electrode and blot with lint-free tissue.
9. Put pH electrode into buffer solution pH7.00, repeat steps 3 to 8.
10. Put pH electrode into buffer solution pH10.01, repeat steps 3 to 8.
11. If you complete steps 1 to 10, the LCD will show CAL(main display) and End(sub dis-
play). (Fig-12)
12. Sliding the “CAL” switch to left to leave calibration procedure.
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(Fig-8)
(Fig-9) (Fig-10)
(Fig-11)
(Fig-12)