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JENCO INSTRUMENTS was established more than 40 years ago on the idea that innovative water quality instruments should be available at competitive prices and their mission is to bring innovation to anyone who works with analytical instruments.

Since the launching of the world's first portable digital pH meter in 1975, Jenco Instruments has continued to focus only on building water quality instruments for measuring pH, ORP, conductivity, TDS, salinity, resistivity, dissolved oxygen, ion, turbidity and temperature. 

This single minded-focus is combined with Jenco's obsession with finding the best balance between quality and value - whether it is the simplest testers or the most advanced, gesture-operated, WIFI-enabled benchtop meters.   

pH/DO/Temp Industrial Online Controller


pH/DO/Temp Industrial Online Controller


Features :
  • Graphic LCD with manual backlight displays pH, dissolved oxygen,temperature, relay status and transmitter current mA output simultaneously
  • Automatic buffer recognition of US and European buffer sets. Calibration data is stored in memory and is ready for use on power up
  • Isolated and reversible 4-20 mA current output for pH/ dissolved oxygen allows it to be used as a proportional output.
  • 5 programmable on/off relays: 2 for pH, 2 for dissolved oxygen and 1 for temperature
  • RS-485 output for remote access via an compatible computer allows multiple units to be connected and ganged together
  • Password protection
  • IP65 watertight case


Range :

pH : -2.00~16.00pH
Dissolved oxygen (ppm/%) : 0.00~60.00ppm / 0.0~500.0%
Temperature : -10.0~120.0°C

Resolution :

pH : 0.01pH
Dissolved oxygen (ppm/%) : 0.01ppm / 0.1%
Temperature : 0.1°C

Accuracy :

pH : ±0.01pH ±1 digit
Dissolved oxygen (ppm/%) : ±0.2%FS
Temperature : ±0.1°C

pH Buffer Recognition : US (4.01, 7.00, 10.01) or NIST (4.00, 6.86, 9.18), user selectable
pH Electrode Offset Recognition : ±100mV at pH 7.00 / -91.7mV~+108.3mV at pH 6.86
pH Electrode Slope Recognition : ±30% at pH 4.00, 4.01, 9.18 or 10.01
pH Input Impedance : >10^13Ω
Salinity Compensation : Manual 0.0~49.9ppt
Pressure Compensation : Manual 600~1100mBar
Temperature Compensation : Auto 0~80.0°C, 22kΩ NTC
Output Select : User selectable pH or dissolved oxygen
Current Output Range : 4~20mA (isolated), programmable span
Current Output Scale : User programmable, linear or log 
Maximum Load : 500Ω
Isolation Voltage : 500V DC
Control Type : 5 ON/OFF controls
Relay Output : 5A at 115V AC or 2.5A at 220V AC, resistive load only
Display : 128 x 64 graphical LCD with backlight
Security : 4-digit password
Power : 115V AC or 230V AC at 50/60Hz
Ambient Temperature Range : From 0~50°C
Weight / Case : 950 grams / IP65, 1/4 DIN case, 148mm depth 

Accessories :

IP-600-10 : For wastewater (pH glass electrode, PPS housing, NPT3/4'' thread, 20m cable)
OXYSENS 120 : For wastewater (stainless steel housing, PG13.5 thread, 5m cable with temperature thermistor)
009 : Protective submersion housing
012-200-00 : Waterproof enclosures


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