Suntex PC-3100 User manual

Operation
Manual
PC-3100/3100RS
Microprocessor
pH/ORP
Controller

ii
Brief Instruction 1
1. Specifications 5
2. Precautions for installation 6
3. Assembly and installation
3.1 Controller installation 6
3.2 Illustration of panel mounting 6
3.3 Illustration of Wall mounting and pipe mounting 7
3.4 Assembly of electrode and housing 7
3.4.1 Cable set-up 7
3.4.2 Assembly of housing PP-100A 8
3.5 Illustration and description of junction box 9
4. Overview of pH controller PC-3100
4.1 Illustration of rear panel 11
4.2 Illustration of terminal function 11
4.3 Description of terminal function 12
4.4 Installation of transmitter PH-300T 12
4.5 Connection of controller PC-3100 and transmitter PH-300T 13
4.6 Typical wirings 14
4.7 Illustration of electrical connection 14
5. Configuration
5.1 Illustration of front panel 15
5.2 Keypad 15
5.3 LED indicators 16
5.4 Display 16
6. Operation
6.1 Measurement mode 17
6.2 Set-up mode 17
6.3 Calibration mode 17
6.4 Reset
6.4.1 Master reset 17
6.4.2 Calibration reset 17
6.5 Time and date mode (PC-3100RS only) 17
7. Settings
Block diagram of settings 18
7.1 Entry of set-up mode 19
7.2 Security code of settings 19
7.3 Measurement parameters 19
7.4 Temperature 20
CONTENTS

iii
7.5 Hi point 22
7.6 Lo point 23
7.7 Wash time 24
7.8 Analog output 1 (pH/ORP) 25
7.9 Analog output 2 (temperature) (PC-3100 only) 26
7.10 Time and date setting (PC-3100RS only) 27
7.11 RS-485 (PC-3100RS only) 27
7.12 Backlit LCD 28
8. Calibration
Block diagram of Calibration 29
8.1 Security code of calibration 30
8.2 Entry of calibration mode 31
8.3 Asymmetry Buffer calibration 32
8.4 Standard Buffer calibration 33
8.5 ORP calibration 36
9. Instruction set for RS-485 (PC-3100RS only)
9.1 Illustration of connection for RS-485 37
9.2 Instruction set of measurement mode 38
9.3 Instruction set of set-up mode 39
10. Error messages (Error code) 42
11. Maintenance 43

1
Brief Instruction
If you like to use security code of settings, the original code is e1111.
Settings of measurement parameters (see chapter 7)
In measurement mode, pressing Setup and Mode simultaneously allows
you to access Set-up mode.
In the Code interface, entering original code or user’s designated code allows you
to reset the code or shut down this function.
In the Configuration interface, please choose “pH” or “ORP” parameter to measure.
In the Temperature interface, please set temperature compensation type and
tem
p
erature modification.
In the Relay 1 interface, please choose or to activate it or not.
In the Relay 2 interface, please choose or to activate it or not.
In the Clean interface, please set wash time and stop duration.
In the pH interface, please set analog output 1 with or
In the tP interface, please set analog output 2 with or
(
PC-3100 onl
y)
In the Real-time clock interface, please set year, date, and time. (PC-3100RS only)
In the Serl interface, please set ID code and speed baud .
(
PC-3100RS onl
y)
In the Back light interface, please set brightness of display and sensitivity of
li
g
ht-source sensor.
Settings of Calibration (see chapter 8)
In measurement mode, pressing Cal. and Mode simultaneously allows you
to access Calibration mode.
In the Code interface, entering original code or user’s designated code allows you to
reset the code or shut down this function.
: Asymmetry Buffer
: TECH. Buffer: pH2.00, 4.01, 7.00, 10.00, 12.00 (pH2.00 & pH12.00 for PC-3100RS only)
: NIST Buffer: pH1.68, 4.01, 6.86, 9.18, 12.46 (pH1.68 & pH12.46 for PC-3100RS only)
If you like to use security code of calibration, the original code is 1111.

2
1. When entering CA1 calibration mode, clean the
electrode with distill water before putting it in the
buffer solution. Push to start the calibration.
Then display will show the mV value of the buffer
and begin to twinkle. After showing a similar
numberofpHvaluetothebuffersolution,push
or to set the digit until it is equal to the
buffer’s standard. Then, push to ensure it.
2. When the display shows “CA2”, it means that
you are now entering second point of calibration.
Process same procedures as Step 1.
Note 1: Push when showing CA2, you may
choose to make single-point calibration only.
Note 2: Single-point calibration means that you
only modify zero point (OS value) and do not
modify the slope (SLP value). The controller will
automatically adapt to the SLP value that have
been memorized the very last time.
3. The display will show “CAL PASS” when you
successfully finish calibration. In the other hand,
it will show “CAL Err” when failing calibration.
(See chapter 10 for error messages)
4. The display will show OS value (zero-point)
automatically. Push to show the SLP value
of calibration. Push to go back to
measurement mode.
Asymmetry Buffer Calibration (Single point and Dual points)

3
Note: This controller can recognize buffer solutions automatically. Three-point
calibration is for PC-3100RS only.
1. Enter Ct1 calibration mode. Clean the electrode
completely. Put it into the first buffer solution. Then,
push bottom to start the first-point calibration.
2. The display will show mV value while being
calibrated. After the value becomes stable, the
display will show the first pH value of calibration.
Then, it will enter the second calibration (Ct2).
3. Clean the electrode completely, and put it into the
second buffer solution. Then, push bottom
to start the second-point calibration.
4. The display will show the mV value while being
calibrated. After the value becomes stable, the
display will show the second pH value of calibration
automatically. Then, then it will enter the third-point
calibration (Ct3).
Note: Type PC-3100 does not supply with the function.
For skipping the third-point calibration, please
push bottomtoescape.
5. Clean the electrode completely, and put it into the
third buffer solution. Then, push bottom
to start the third-point calibration. (Same steps as above)
Standard Buffer Calibration(TECH)---Dual points and Three points

4
6. When being calibrated successfully, it will show “CAL
PASS”. If the calibration is unsuccessful, it will show
“CAL Err”. (See chapter 10 for Error messages and
solutions)
7. The display will automatically show the oS1 (zero-point
mV) Value. Push bottom to see SLP1 (slope) value.
Then, push to see oS2 (zero-point) value. Then, push
toseeSLP2 (slope) value. Then, push you
may repeat calibration steps of 1 to 7. Or push
to go back to measurement mode.
Note: (1) The dual-point and three-point calibration steps
of pre-set buffer solutions (NIST) are the same
procedure as the calibration of TECH. buffer
solutions.
(2)When doing Three-point calibration, be aware of
calibrating it from lowest pH value to highest one,
or vice versa.
Push for 5 seconds, then push bottom. The display will show
sign to indicate that Master Reset has been done.
Push for 5 seconds, then push bottom. The display will show
sign to indicate that Calibration Reset has been done.
Reset
＋
＋

5
Model PC-3100 PC-3100RS
Measuring modes PH/ORP/TEMP
pH -2~16pH
ORP -1999~1999mV
Ranges
Temp. -10.0~110.0°C
pH 0.01pH
ORP 1mV
Resolutions
Temp. 0.1°C
pH ±0.01±1D i g i t
ORP ±0.1% ±1D i g i t
Accuracy
Temp. ±0.2°C±1D i g i t
NTC30KΩor PT1000 auto recognized
Temperature
Compensation Manual adjustment
Ambient Temp. 0~50°C
Storage Temp. -10~70°C
Input Impedance > 1012 Ω
Display LCD display with illumination function
Analog output 1 Isolated DC 0/4~20mA corresponding to pH/ORP,
max. load 600Ω
Analog output 2 Isolated DC 0/4~20mA
corresponding to Temp, max.
load 600Ω
－
Serial Interface －RS-485
Contact 240 VAC, 0.5A max.
Settings
Activate Two sets Hi/Lo Programmable, ON/OFF
Contact 240 VAC, 0.5A max.
Wash
Time ON: 0~999 sec./ OFF: 0~999 hours
Voltage Output DC±12V
Power Supply Switching power 88V~265VAC，50/60Hz
Installation Wall or Pipe or Panel Mounting
Dimensions 144 mm ×144 mm ×115 mm (H×W×D)
Cut off Dimensions 138 mm ×138 mm (H×W)
Weight 0.82 kg
Certification IP 65 (NEMX 4X), CE
1. Specifications

6
Wrong wiring will lead to breakdown or electrical shock of the instrument, please read this
operation manual clearly before installation.
zMake sure to remove AC power from the controller before wiring input, output connections,
and remove it before opening the controller housing.
zThe installation site of the controller should be good in ventilation and avoid direct sunshine.
zThe material of signal cable should be special coaxial cable. Strongly recommend using our
coaxial cable. Do not use normal wires instead.
zAvoid electrical surge when using power. Especially when using three-phase power, use
ground wire correctly.
3.Assemblyandinstallation
3.1 Controller installation: This controller can be installed through panel mounting, wall
mounting and pipe mounting.
Installation of panel mounting: First prepare a square hole of 138 x 138mm on the panel box,
and then insert the controller directly into the panel box. Insert the accessorial mounting
bracket from the rear to be fixed in to pickup groove.
3.2 Illustration of panel mounting:
2. Precautions for installation
138mm
138m
m
Hole size
42mm
＋
＋
＋ ＋
42mm
Hole distances on the
p
anel box
Figure 2
Mounting bracket
Illustration of panel mounting,
fixed with Mounting bracket

7
3.3 Illustration of Wall mounting and pipe mounting
3.4 Assembly of electrode and housing
3.4.1 Cable set-up:
a. Make sure to remove the conductive rubber or aluminum-foil paper between the electrode
signal wire and the network cable.
b. Extend the cable to the controller without any joint except specific junction box. Connect
Set-up diagram of coaxial cable:
See the correct set-up method on the left:
Note: The black conductive rubber covering
on the central spindle should be removed for
use.
Installation of pipe mounting
Fixed with U-shaped pipe clip
Order No.: 8-34
Installation of wall mounting
Fixed with 4 M5 screws
Rain covered
Order No.: 8-34 and 8-35 Figure 3
Remove the conductive rubber
Rain covered
Order No.: 8-35

8
the central spindle directly to the Glass contact on the back of controller and connect
network cable to Ref contact.
3.4. 2 Assembly of housing PP-100A
1. Insert (H) Sensing electrode through (G) PP Electrode Protective Housing
2. Lubricate (H) Sensing electrode properly, so that it can be easily pass through (I) Rubber
electrode holder leaving about 5cm bellow.
3. Install the prepared (I) Rubber electrode holder into (G) PP Electrode Protective Housing
and lock (J) PP pipe protective cover tightly.
4. Insert (H) Sensing electrode cable through (D) Lower cover of round junction box and (C)
Cable fixing point, and use (D) Lower cover of round junction box to lock (G) PP
Electrode Protective Housing tightly.
5. Prepare 15cm cable in the PP pipe, and then lock (C) Cable fixing point MG16A tightly.
Leave (H) Sensing electrode cable for about 12-14cm, and split it carefully.
6. Fix the terminal of electrode central spindle on terminal block 1 of round holder; Fix the
terminal of electrode network cable on terminal block 3. (See the instruction of junction
box)
7. Extend the cable to pass through (E) Cable fixing point on (D) Lower cover of round
junction box, and lock (E) Cable fixing point MG16A tightly, leaving 12-14cm in the box
for split.
8. Extend the lead central spindle and electrode central spindle to connect them; extend the
lead network cable to fix on the terminal block 3. Lock (A) Upper cover of round junction
A------Upper cover of round joint box
B------O-Shaped ring
C------Cable fixing point MG16A
D------ Lower cover of round joint box
E------ Cable fixing point MG16A
F------ O-Shaped ring
G------PP Electrode Protective Housing
H------ Sensing electrode
I------- Rubber electrode holder
J------PP pipe protective cover

9
box to finish the installation.
Mounting bracket:
Our company use L-shaped mounting bracket as electrode mounting bracket. According to the
site necessity, fix the bracket with steel nails or expansion bolts at proper locations by pool.
3.5 Illustration and description of junction box :( Two kinds of link distributing system)
〔1〕
Two-wire distributing system
IN terminals Terminal
No.
OUT terminals Terminals on
controller
Electrode central
spindle
1 Central spindle extending
wire for electrode
GLASS
Shield (forbidden) 2 Shield (forbidden) ------
Electrode network
cable
3 Network cable extending
wire for electrode
REF
Temperature probes
red wire
4 Red wire extending wire for
electrode
T/P
Temperature probes
green wire
5 Green wire extending wire
for electrode
GND
Alternative 6、7 Alternative ------

10
Note: 1. Our company’s extending wire for electrode material No. is 7202-F94009-BK
and 7202-RG-58
1.) If temperature probe is not used, the material No. is 7202-RG-58.
2.) If temperature probe is used, the material No. is 7202-F94009-BK.
2. If temperatures probe 8-26-3(NTC30K) or 8-26-8(PT1000) is used for two-wire
distribution, the black wire terminal should be forbidden.
〔2〕
Three-wire distributing system
IN terminals Terminal
No.
OUT terminals Terminals on controller
Electrode central spindle 1 Central spindle extending wire
for electrode
GLASS
Ground Rods 2 GND GND
Electrode network cable 3 Green wire extending wire for
electrode
REF
Temperature probes red
wire
4 Red wire extending wire for
electrode
T/P
Temperature probes
green wire
5 Green wire extending wire for
electrode
GND
Alternative 6、7 Alternative ----
Note: 1. The black wire on the temperature probes of 8-26-3(NTC30K) or 8-26-8(PT1000) is
used as special wire for Ground Rods to be connected at terminal 2.
2. The extending wire for electrode that has a temperature probe or ground rod is
marked with material number 7202-F94009-BK.

11
4. Overview of pH controller PC-3100
4.1 Illustration of rear panel:
4.2 Illustration of terminal function:
D+(B)
G
D-
(
A
)
+
-
4/20m
A
GLASS
REF
GND
TP
PH/
ORP
T
POWER
AC
INPUT
POWER
TP
+
-
±
12V
HI LO WA S H
+
-
4/20m
A
RS485
1
2
PC3100RS
PC3100 only

12
4.3Description of terminal function:
GLASS :Central spindle connecting pH/ORP electrode signal wire
NC :NC
REF :Network cable connecting pH/ORP electrode signal wire
GND : The terminal connecting temperature probe, or used as ±12V
ground potential. In two-wire distributing system, there
should be a short circuit between this terminal and REF (a
short circuit slice is attached when going out the factory)
T/P :Connect the other end of temperature probe
DC±12V :Output terminal of direct current voltage ±12V (PH-300T
only)
(1) 4~20mA+terminal : Master measure current output terminal +, for external recorder
or PLC control
4~20mA - terminal : Master measure current output terminal -, for external recorder
or PLC control
(2) 4~20mA+ terminal/ D+(B): Temperature current output terminal +, for external recorder
or PLC control (only applicable for PC-3100); or RS-485
output D+(B) (only applicable for PC-3100RS)
4~20mA - terminal/ G : Temperature current output terminal -, for external recorder or PLC
control (only applicable for PC-3100); or RS-485 output GND
(only applicable for PC-3100RS)
NC/D-(A) :NCor RS-485 output D-(A) (only applicable for PC-3100RS)
REL1 :External relay terminal high control
REL2 :External relay terminal low control
WASH :External wash relay terminal
100~240AC : Power supply terminal
4.4 Installation of transmitter PH-300T: (alternative equipment)
PH-300T transmitter is mainly installed on the electrode protective pipe, but also can apply
wall mounting and pipe mounting. For long distance transmission (100m), if PC-3100 is more
than 30 far away from the electrode, PH-300T transmitter is recommended to avoid the
attenuation of electrode signal, and for the convenience of onsite observation, measurement,
and calibration.

13
4.5 Connection of controller PC-3100 and transmitter PH-300T:
A. Connect the GLASS point of transmitter PH-300 terminal to the electrode central spindle.
(Note: Remove the black conductive rubber); connect the REF point of transmitter PH-300
terminal to the electrode network cable.
B. See the two-wire distributing system and three-wire distributing system in the following
page.
C. PT-1000 on transmitter PH-300 terminal is an automatic temperature compensation probe,
or applies a fixed temperature compensation resistance.
D. The V+ and V- of transmitter PH-300 terminal respectively connect to DC12V+ and – of
the controller.
E. The S+ and S- on transmitter PH-300 terminal respectively connect to GLASS and REF of
the controller.
F. The I+ and I- on transmitter PH-300 terminal are output (4-20mA), which can connect to
devices that receive current signals. (Note: The current output signal of this transmitter
is not insulating, so use it with much care!)
Note: Refer to the following table for proper fixed temperature compensation resistance
Temperature 0℃ 5℃ 10℃ 15℃ 20℃
R value 1000Ω1019.25Ω1038.5Ω1057.75Ω1077Ω
Temperature 25℃ 30℃ 35℃ 40℃ 45℃
R value 1096.25Ω1115.5Ω1134.75Ω1154Ω1173.25Ω
Temperature 50℃ 55℃ 60℃ 65℃ 70℃
R value 1192.5Ω1211.75Ω1231Ω1250.25Ω1269.5Ω
Temperature 75℃ 80℃ 85℃ 90℃ 100℃
R value 1288.75Ω1308Ω1327.25Ω1346.5Ω1385Ω

14
4.6 Typical wirings:
4.7 Illustration of electrical connection:
Three-wire distribution
GND REF
.
GLAS
pH/
ORP
Central
Network
Black
Two-wire distribution
GND REF. GLAS
pH/
ORP
Central wire
N
etwork cable
Short circuit slice
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Transmitter
Washing device
Dose feeder
Dose feeder
110 ~ 240VAC
Surge absorber
Surge absorber
External relay
External relay
External relay

15
5. Configuration:
5.1 Illustration of front panel:
5.2 Keypad:
In order to prevent inappropriate operation by others, before the parameter setting and
calibration, the operation applies composite keys and coding protection if necessary.
Description of the key functions is in the following:
In the parameter set-up mode, pressing this key allows you exit parameter set-up
mode and back to Measurement mode.
In the Calibration mode, pressing this key allows you exit Calibration mode and
back to Measurement mode.
In the parameter set-up mode and Calibration mode, it is an optional function
key and upward key.
In the parameter set-up mode and Calibration mode, it is an optional function
key and rightward key.
:Key for confirmation; pressing this key is essential when modifying data value
or selecting the parameter setting items in the window.
: In the Measurement mode, pressing these two keys simultaneously
allows you enter Calibration mode.
: In the Measurement mode, pressing these two keys simultaneously
allows you enter parameter set-up mode.
＋
＋

16
In the Measurement mode, press the two keys 键
simultaneously for five seconds, and then press until you see a clock
signal appearing on the display; Then loose all keys to restore factory default
settings.
: Restore factory default calibrations
IntheMeasurementmode,pressthetwokeys
simultaneously for five seconds, and then press until you see a clock
signal appearing on the display; then loose all keys to restore factory default
calibrations.
5.3 LED indicators:
WASH: Washing device operation indicator lamp; when the washing device is started up,
the Alarm indicator will light.
HI : Controlling operation indicator lamp; when the high setting value is started up, the
REL1 indicator will light.
LO : Controlling operation indicator lamp; when the low setting value is started up, the
REL2 indicator will light.
B.L. :Light sensor; in the automatic display backlit mode, the lamp will light or go out
as the change of environmental brightness.
5.4 Display:
: Output currant is higher than 20mA.
: Output currant is lower than 0/4mA.
＋＋: Restore factory default settings
＋
＋＋
＋
Calibration
mode
Controlling
function
locked
Sett-up mode
Measurement
mode
REL1high
point alarm
REL2 low
point alarm
Start-up status of
washing machine
Output currant is higher
than 20mAor lower
t
h
a
n
0/
4mA
Measure unit
Automatic
temperature
compensation
mA
mA
Reminder of recovery of
original setting

17
6.Operation
6.1 Measurement mode:
After all electrical connections are finished and tested, connect the instrument to the power supply
and start up it. Enter the Measurement mode of factory settings or final settings to begin the
measurement and monitor.
6.2 Set-up mode:
Please refer to the set-up instructions in Chapter 7, and press to back to measurement
mode.
6.3 Calibration mode:
Pleaserefertothecalibrationinstruction in chapter 8, and press to back to
measurement mode.
6.4 Reset:
6.4.1 Master reset:
In the measurement mode and set-up mode, press two keys simultaneously for
five seconds, and then press until you see a clock signal appearing on the display; then loose all
keys to restore factory defaults.
Factory defaults:
Measurement mode: pH
Temperature compensation: MTC25℃
High point alarm: AUTO，SP1= 10.00 pH，db1= 0.10 pH
Low point alarm: AUTO，SP2 =04.00 pH，db2= 0.10 pH
Wash time: ON =0000 s.，OFF =000.0 H，db= 0000 s.
pH/ORP current output: 4~20 mA，02.00~12.00pH
TP current output: 4~20 mA，000.0~100.0 ℃(for PC-3100 only)
Display backlit: AUTO，b.L.= 0，SEnS =0
Code set-up: off
The followings are for PC-3100RS only:
Date and time: 2000-1-1 0Hr 0Minute 0sencond
RS-485 set-up: ID= 31，baud speed= 9600
6.4.2 Calibration reset:
In the Measurement mode, press the two keys simultaneouslyforfiveseconds,
and then press until you see a clock signal appearing on the display; then loose all keys to
restore factory default calibrations.
Factory defaults:
OS value: 0 mV
SLOPE value: 100.0 %
Calibration mode: Two-Point Calibration: Ct1
Three-Point Calibration: Ct1 (PC-3100RS only)
6.5 Time and date mode (PC-3100RS only)
In the measurement mode, press the key to check the year, date, and time. You can shift
among them sequentially by pressing the key or enter the next page by waiting for 5 seconds.
After the checkup, it will back to measurement mode automatically.
＋
＋