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PH INDICATORS / PH TRANSMITTERS
  1. High quality, accuracy & drift free performance.
  2. 0/4 to 20 mA O/P proportional to 0 to 14 PH.
  3. IP-55 enclosure as well as DIN rail mounting enclosures.
  4. Auto / manual temp, compensation.
  5. Digital LCD local indication can be provided.
  6. Field mountable PH transmitter can be provided
  7. Field mountable PH transmitter enclosed in wheather proof cast Al housing.
GENERAL DESCRIPTION

VedSri PH meter and transmitter incorporates the latest high technological advancements. It has very stability, reproducibility & continuous duly cycle. The instrument having very high input impedance advanced (MOS-FET butter OP-AMP) the instrument accepts all types of PH electrode. Auto / manual temp, compensation facility is available. The instrument indicates PH by 3 1/2 digit LED / LCD display.

Features

  •  Manual / Auto temp, compensation by pt-100 sensor.
  •  Direct indication of PH/ mV and temp, by LED/LCD displays.
  •  Slope control for correcting electrode slope.
  •  Asymetry control to eliminate ageing offect.
  •  0 / 4 to 20 mA output into 500 V incase of PH transmitter.

Construction & Operation

The glass epory, green masked, PCB with high quality components soldered gives the drift free performance. The mV signal from PH electrode is directly given to high I / P impedance buffer amplifier and then this signal is processed. The auto/manual temp, compensation circuit is added at this stage & signal is given to DPM / V to I connector. Thus we get PH indication or 0 / 4 to 20 mA signals proportional to input pH.

Applications

pH meter and PH transmitter are commonly used in many industries & plants. Used in water treatment plants, Power Station, Sugar Mills, Steel Plant, Paper Industry, Chemical, Petro Chemical, Food, Fertilizer, Soft Drink Industries.

Technical Specifications
INPUT Pt-100, T/C (J,K,R,S) mA, mV OPERATING HUMIDITY 90 % RH N. C. at 50 °C
RANGE -200 to +600°C-Pt-100 O to 1200°C-KtypeT/C 0 to 750 °C - J type T/C 0 to 1600 °C - R & S type T/C As per requirement for mA, V. COLD JUNCTION COMPENSATION BUILT - IN
INDICATION 230 V AC, 50 Hz. 110 VAC, 50 Hz. THREE WIRE LEAD RESISTANCE BUILT - IN
SUPPLY 3 1/2 Digit, 0.5" 7 Segment display - for process value. 7 Segment display- for channel Indication 5 mm round red LED - for alarm 6 trip. COMPENSATION ALARMS Relay output - 5 Amp. rated 8 relay output for individual channel. 4 relay output Hi & Low for two groups.
ACCURACY 110 VAC, )10%50HZ
) 0.25% of F. S.
CHANNEL SELECTION DIMENSIONS by front push button in manual mode. 96X96X175mm 72 X144 X 300mm
NO. OF CHANNELS 8,16,32  
OPERATING TEMP 10°Cto50°C.  
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