Alpha pH 1000 pH / ORP Controller / Transmitter

  • 2 -in- 1 controller/transmitter Meter can be configured to measure either pH or ORP (mV or %)
  • Seven preset buffer values Delivers quick, accurate auto-calibration
  • Warranty This product is covered by a 1 year warranty
Product Options


The Eutech Alpha pH 1000 controller/transmitter delivers a wonderful combination of sophisticated control functions along with consistent performance and accuracy. Seven preset buffer values offer quick and accurate auto-calibration. An additional electrode offset function enables direct reading corrections without any requirement to remove the electrode from the control system. If finer more precise control is required the Alpha pH 1000 offers proportional pulse length control along with proportional pulse frequency control, in addition to basic limit control. There are a variety of modes this meter can be set too to enhance the use for the user: symmetrical mode for clear, uninterrupted pH readings in electronically noisy environments. Antimony mode, which gives the user to option to use antimony electrodes in applications that involve corrosive hydrofluroic acid. There is in addition the option for the temperature compensation to be set to either auto or manual and the three wire system compensates for cable length resistance errors. Galvanically isolated scaleable to 0/4 to 20 mA output for high quality output on peripheral devices. A standard of the Alpha pH 1000 controller/transmitter is the 1000 limit/proportional controller which offers two additional features: wash function for scheduled electrode wash and alarm relay function which handily alerts when measurements cross the set points. This device is covered by a 1 year warranty.

Manufactured by: Eutech Instruments
Model: Alpha pH 1000 pH / ORP Controller / Transmitter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Water Purification/Treatment
Use for batch and on-line control of incoming process water, rinse water treatment, recirculating system and waste water treatment
Useful for any batch or on-line type application that requires accurate pH or ORP control
Ideal for chemical processing, food processing, aquarium, pharmaceutical, hydroponics and waste control industries
Hook to recorder to document data for regulatory compliance


Range -2.00 to 16.00 pH
Resolution 0.01 pH
Accuracy ±0.01 pH
Range -1000 to 1000 mV / 0 to 100.0 %
Resolution 1 mV / 0.1 %
Accuracy ±1 mV / ±0.2 %
Range -9.9 to 125.0 °C
Resolution 0.1 °C
Accuracy ±0.5 °C
Sensor Pt100 / Pt1000 (jumper selectable); 2 or 3 wire
Compensation Auto/manual
Set Point And Controller Functions
Set point 1 (SP1) /
set point 2 (SP2)
0.00 to 14.00 pH or -1000 to 1000 mV or
0 to 100 %
Switching pH Hysteresis 0.1 to 1 pH
Switching ORP Hysteresis 10 to 100 mV / 1 to 10.0 %
Function (Switchable) P control (pulse length/pulse frequency);
limit control
Adjustable Period With Pulse Length Controller 0.5 to 20 sec
Adjustable Period With Pulse Frequency Controller 60 to 120 pulse/min
Pickup/Dropout Delay 0 to 2000 sec
Contact Outputs 3 SPDT relays
Switching Voltage/
Max. 250 VAC / max. 3 A / max. 600 VA
Alarm Functions
Function (Switchable) Steady or fleet (pulse)
Wash Cycle 0.1 to 199.9 hr
Wash Direction 1 to 1999 sec
Pickup Delay 0 to 2000 sec
Switching Voltage/
Max. 250 VAC / max. 3 A / max. 600 VA
Electrical Data And Connections
Transmitter Function 0/4 to 20 mA scalable outputs for pH/ORP, galvanically isolated
Hold Function Switch To freeze output current and deactivate control relays
Load Max. 600 Ohm
pH/ORP Input BNC (1012 impedance); asymmetrical/symmetrical
Connection Terminal 5-pole, 17-pole terminal, detachable blocks
LCD 7 segments display with symbols for status information
Power Supply
Input 110 VAC
(jumper selectable) ;
48 to 62 Hz ; max. 7 VA
(For TSCTP1001)
220 VAC�?????????????????�????????????????�???????????????�??????????????�?????????????�????????????�???????????�??????????�?????????�????????�???????�??????�?????�????�???�??�?� 
(jumper selectable) ;
48 to 62 Hz ; max. 7 VA
(For TSCTP1002)
Main Fuse Slow-blow 250 V / 100 mA
Pollution Degree 2
Transient Overvoltage Category II
EMC Specifications
Emitted Interference According to EN 50081-1
Immunity To Interference According to EN 50082-1
Environmental Conditions
Operating Temperature Range -10 to 50 °C
Max. Relative Humidity 80 % up to 31 °C decreasing linearly to 50 %
at 40 °C
Mechanical Specifications
Dimensions (WxHxD) 96 x 96 x 175 mm
Weight 700 g (unit) / 800 g (packed)
Ingress Protection IP54 (front panel)