ROC pH/ORP-5500 Series User manual

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pH / ORP Transmitter / Controller
pH / ORP-5500 Series
USER MANUAL

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ntroduction
Correct sensor installation and parameter setting would show great performance and advantage
of this instrument for your good usage So please carefully read this manual before installation
This instrument is a precise electrochemical analysis meter, the installation and operation should
be performed by technicians with relevant professional knowledge
Please check the actual product with complete set after you receive the package, and contact us if
any items are missing or damaged
Warranty：
1. The meter’s quality guarantee is one year from the date of purchasing During this period,
if the meter has quality problems, the supplier is responsible for maintenance work on
free of charge basis
2. If the damage of the meter is caused by the following reasons, it is out of Guarantee:
A The meter is burned
B The meter is refitted or misused
D The relevant damage caused by improper power supply
E The cable damaged and rupture caused by improper installation and usage;
F The incorrect measurement of the sensor caused by disconnecting or connecting wires
personally;
G Any other form of misuse/mishandling
Please take care of the items which with this sign ！
Thanks for choosing pH / ORP – 5500 series pH / ORP Controller

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CONTENT
1、CONCEPTION ERROR! BOOKMARK NOT DEF NED.
1 1 WORKING PRINCIPLE 5
1 2 APPLICATION 5
1 3 CLASSIFICATION 5
1 4 TECHNIQUE INDEX 6
2、INSTALLATION 7
2 1 INSTALLATION OF INSTRUMENT 7
2 2 ELECTRICAL CONNECTION 8
2 3 DIAGRAM OF 4-20MA OUTPUT 10
2 4 RELAY CONTROL CONNECTION 11
2 5 CONTROL MODE 11
2 6 OUTLINE DIMENSION AND INSTALLATION OF SENSOR 12
2 6 1INSTALLATION METHOD OF THE SENSOR 13
2 6 2 INSTALLATION REQUIREMENT 14
3、SETTINGS 15
3 1 MEASUREMENT MODE 18
3 1 1 NORMAL DISPLAY 18
3 1 2 TRANSIENT DISPLAY 18
3 2 SETTING MODE 19
3 2 1 FUNCTION SELECTION 19
3 2 2 4MA SETTING 19
3 2 3 20MA SETTING 19
3 2 4 HIGH-LIMIT ALARM SETTING 19
3 2 5 LOW-LIMIT ALARM SETTING 19
3 2 6 ALARM HYSTERSIS SETTING 19
3 2 7 TEMPERATURE SETTING 20
3 3 SENSOR CALIBRATION 20
3 3 1 SYSTEM CALIBRATION 20
3 3 2 BUFFER SOLUTION CALIBRATION 21
3 3 3 OFF-LINE CALIBRATION 22
4 MAINTENANCE 23
4 1 SENSOR MAINTENANCE 23
4 2 USAGE OF SENSORS ERROR! BOOKMARK NOT DEF NED.
5 INSTRUMENT AND PROBE FAULT COMMON TROUBLE SHOOTING 24
6 COMPLETE SET 24
7 ORDER DIRECTORY 25
7 1 SENSOR SELECTION 25
7 2 FLOW DEVICE SELECTION 25

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1. Conception
FEATURES :
 White backlight LCD screen, several operations, easy for operation
 Compatible with six kinds of buffer solutions suitable for international standards
 Selectable temperature sensor which reduce the replacement cost；
 Manual calibration is easy for on-site calibration
 EMC enhancement type could run smoothly under various kinds of industry
environment
 （4~20）mA output supports instrument/transmitter modes and satisfies all 4~20mA
receiving units
 Double relay high/low and delay control function could fulfill pH or ORP interval
control and adjustment
pH / ORP-5500 series is an online pH and ORP Controller , with plug-in PH-1110A sensor,
which has good measurement accuracy, anti-interference, easy to install and operational
features

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1.1 Working Principle
A weak voltage change is generated when H+ affects the inserted sensor, the changeable value
will transmit to the instrument After converting and calculating the generated pH/ORP signal,
the instrument will show the values on the screen
1.2 Application
This series of instruments are widely used for online pH/ORP monitoring in environment
protection water treatment, pure water treatment, industrial process and so on
1.3 Classification
Model Power
Supply
Frequency
（Hz） Current Mode Sensor Selection
pH/ORP-5520 AC 220V 50 / 60 Instrument / Transmitter
【NOTE】
1 Install the instrument in a dry environment and any water-drop or excess moisture will cause
damage or measurement error；
2 Pay attention on the power supply before wiring connection
pH-1110A

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1.4 Technical index
Controller
Measuremen
t Range
pH 0 00~14 00
ORP -2000mV~2000mV
Temp. （0 0~50 0）
℃
（temperature compensation component: NTC10K）
Resolution
pH 0 01 pH
ORP 1mV
Temp. 0 1 ºC
Accuracy
pH 0 1 pH
ORP ±5 mV（electronic unit）
Temp. ±0 5 º C
Approximate input impedance 3×1011 Ω
Buffer Recognition pH value: 10 00；9 18；7 00；6 86；4 01；4 00
Temp compensation range （0~50）ºC（with 25 ºC as standard）
Manual and automatic temperature compensation
(4~20)mA
Characteristics
Isolated, fully adjustable, reversible, instrument/transmitter for
selection
Loop
resistance 500Ω（Max），DC 24V
Accuracy ±0 1mA
Control
contact
Electrical
Contacts Double relay SPST-NO, return model
Loop capacity AC 220V/AC 110V 2A(Max)；DC 24V 2A(Max)
Power consumption ＜3W
Working
environment
Temperature (0~50) ºC
Humidity ≤85％RH (non condensing)
Storage environment Temp (-20-60)
℃
; ≤85％RH (non condensing)
Outline dimension 96mm×96mm×105mm（H×W×D）
Panel Cutout Dimension 91mm×91mm(H×W)
Installation Panel mounted, fast installation
pH / ORP-5520 Series pH / ORP Online Transmitting
Model

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2. nstallation
Side view
2.1 nstallation of nstrument
Front view
pH/ORP-5500 series is a panel mounted type instrument, which can be installed easily

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Please follow the following steps:
1 Put the instrument into the Panel Cutout 91mm X 91mm (H x W)
2. Then push the quick clamp along with the trench and fasten the instrument
3. Do not let the instrument drop on the floor when dismounting the meter Withdraw the
quick clamp and take the instrument out carefully
Do not place the LCD display screen directly under the sun for the UV could damage
the screen
2.2 Electrical Connection
The measurement cable cannot be mixed with high-tension and high frequency cables To avoid
any interference, the cables should be at a distance of 30cm from high tension cables and
connected with the ground
Connect the power line and signal line according to the below Diagrams：

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The actual power supply must be the same
with marked power supply !
Wiring Connection：
NPUT Connect pH/ORP measuring sensor（transparent line）
REF Connect pH/ORP reference sensor（shielded line）
CELL-T Connect the receiving terminal of the Temp sensor(red)
GND Connect grounding terminal of the temp sensor (black)
+/ - Instrument mode (powered by instrument)
T+/T- Transmitting model（external feed）
Hi High limit alarm control terminal blocks
Low Low limit alarm control terminal blocks
0V/220V AC 220V input interface(pH/ORP-5520)
NC Empty terminal
EARTH Electromagnetic compatibility group protection terminal

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2.3 Diagram of 4-20mA output
nstrument Mode
Transmitting Mode