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2 PRODUCT DESCRIPTION
2.1 DESCRIPTION OF INSTRUMENT SPECIALITY:
OMEGA ENGINEERING
temperature value. pH or ORP measured value can use PLC or LIT to control precisely adding
medicine.
This kind of transmitters has two versions: one is installing way and the other is wall hanging installing
way. Transmitters can be used as monitor in water treatment, in electrolytic water cleaning, in process of
chemical industry, in food process, in cleaning water or wastewater treatment and in neutralization process.
This transmitter has many user-friendly and safety features which include:
• Menu-driven programs that easy to set-up.
•
Strong interference protected design can be used in strong.
• IP65 all-day water and air proofing can be used in any adverse circumstances.
• Built-in memory backup to ensure that setup parameter and calibration information are not erased if
power off or power off in abnormal condition.
• Can separately set process temperature (TST1) and Calibration temperature (TST2) by manual
operation. Without doing trivial manual temperature setting. If the temperature sensor fails. Under
automatic temperature compensation mode, instrument will automatically switch to process
temperature (TST1) of manual temperature compensation to compensate. This can ensure that the
instrument can be working normally. Please refer to procedures of Item 5.1.
• pH measured value can make offset adjustment (adjusting scope ±2PH) so that users can calibrate
online. Please refer to procedures of Item5.2.
• Various choice of electric current output. 0/4-20mA Output scope can be set. (Over / pH). Please
refer to procedures of Item5.3.
• Two routes of relay contacts, users can choose high-low meta control independently and freely.
• Separately adjustable high and low set point hysteresis (dead bands) prevent oscillating of relays
around the set points.
• Various adding-medicine control mode, users can choose precise adding-medicine (PLC) and LIT.
Two groups of relays can switch high-low point control freely. Please refer to procedures of Item 5.4.
• Two kinds of electrode input, users can choose balanced input and imbalanced input. Users can
choose balanced input mode under the strong interference industrial situation. Please refer to
procedures of Page 17.
• Large dual display LCD for easy reading with clear multiple annunciators, alarm status and
operational message annunciators. Long-life micro-switch key can set easily.
• Can set time of instrument and electrode to reduce person management. Instrument will
automatically appear "CAL" at regular time to call person to make calibration and maintain once.
Please refer to procedures of Item 5.7.
•
Automatically clean relay design. Users can set cleaning time and install cleaning equipment by
themselves. Please refer to procedures of Item 5.7.
. pH / ORP transmitters are used to measure pH or ORP and
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