Thermo Scientific Alpha pH 800

Product Features The Alpha pH 800 controllers/transmitters combines consistent performance and sophisticated control functions with user-friendly features. Meters come with seven preset buffer values for quick, accurate auto-calibration; electrode offset function allows direct reading corrections without needing to remove electrode from the control system. Alarm delay and individual set-point hystereses in limit control mode prevent chattering, false alarms, and uncecessary down time. :: 2-in-1 controllers/transmitters can be configured to measure either pH or OPR (mV or %)     :: Auto-calibration with choice of NIST or USA buffer selection. Electrode slope and offset is displayed after each successful calibration     :: Symmetrical mode option for clear, uninterrupted pH readings in electronically noisy environment     :: Antimony mode option for use with antimony electrodes in applications that involves corrosive Hydrofluoric Acid     :: Option of Auto or Manual Temperature Compensation. Three-wire system compensates for cable-length resistance errors     :: Galvanically-isolated, scaleable 0/4 to 20 mA output for high-quality output on peripheral devices

Applications
General: Useful for any batch or on-line type application that requires accurate pH or ORP control.
Water Purification/Treatment: Use for batch and on-line control of incoming process water, rinse water treatment, recirculating system and waste water treatment.
Industrial: Ideal for chemical processing, food processing. aquarium, pharmaceutical, hydroponics and waste control industries.
Specifications

Product Specification	Description
pH
Range	-2.00 to 16.00 pH
Resolution	0.01 pH
Accuracy	±0.01 pH
ORP
Range	-1000 to 1000 mV
Resolution	1 mV
Accuracy	±1 mV
Temperature
Range	-9.9 to 125.0 ºC
Resolution	0.1 ºC
Accuracy	±0.5 ºC
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)	-2.00 to 16.00 pH or -1000 to 1000 mV
Switching pH Hysteresis	0.1 to 1 pH
Switching ORP Hysteresis	10 to 100 mV
Function (Switchable)	Limit control
Pickup/Dropout Delay	0 to 2000 sec
Contact Outputs	2 SPDT relays
Switching Voltage/ Current/Power	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
Display
LCD	7 segments display with symbols for status information
Power Supply
Input	110 VAC (jumper selectable) ; 48 to 62 Hz ; max. 0.75 VA (For TSCTP0801)	220 VAC (jumper selectable) ; 48 to 62 Hz ; max. 0.75 VA (For TSCTP0802)
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 ºC
Max. Relative Humidity	80 % up to 31 ºC decreasing linearly to 50 % at 40 ºC
Mechanical Specifications
Dimensions (WxHxD)	96 x 96 x 175 mm
Weight	700 g (unit) / 800 g (packed)
Ingress Protection	IP54 (front panel)