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Alpha pH 500 Series pH/ORP TransmitterAlpha pH 500 Series pH/ORP Transmitter

Alpha pH 500/Thermo Scientific pH/ORP 2-Wire Transmitter

Availability: กรุณาสอบถามค่ะ

Alpha pH 500/Thermo Scientific pH/ORP 2-Wire Transmitter ช่วงการวัด 0.00 ถึง 14.00 pH; -1000 ถึง 1000 mV
Product Tags

Thermo Scientific Alpha pH 500

pH/ORP 2-Wire Transmitter

Thermo Scientific Alpha pH 500Product Features

Clear, uninterrupted data transmission is no problem with the Alpha pH 500, even in environments with electrical interferences. User-friendly and cost efficient, the transmitter comes with a large LCD screen to double up as a monitor – very convenient for quick checks on-the-spot.

:: Measures, displays and transmit pH/ORP with temperature simultaneously

:: Symmetrical Mode option, two-wire design and input-to-output isolation give clear, uninterrupted data transmission in electrically noisy ambient   

:: High quality, high resolution output at chart printers and other secondary devices  

:: Offset Adjustment Function allows you to adjust readings conveniently without having to remove electrode from the measurement tank or pipe  

:: Reliable, accurate measurements at different temperature with Automatic Temperature Compensation


Product Specification

Range 0.00 to 14.00 pH
Resolution 0.01 pH
Accuracy ±0.01 pH
Range -1000 to 1000 mV
Resolution 1 mV
Accuracy ±2 mV
Range -10.0 to 110.0 ºC
Resolution 0.1 ºC
Accuracy ±0.5 ºC
Sensor Pt100; 2 or 3 wire
Compensation Auto/manual
Transmitter Function 4 to 20 mA scalable outputs for pH/ORP, galvanically isolated
Out-Of-Range Current Output 3.8 mA:
‘On’ select selects 3.8 mA
‘Off’ selects 4 mA (under range)
Selects 20 mA (over range)
Hold Current Output 22 mA:
‘On’ select selects 22 mA
‘Off’ selects last measured current value
Load Max. 600 Ohm
Electrical Data And Connections
pH/ORP Input 2-pin terminal; asymmetrical/symmetrical
Connection Terminal 3-pin & 8-pin terminal, detachable blocks
LCD  7 segments display with symbols for status information
Power Supply
Input 12 to 24 V DC
EMC Specifications
Emitted Interference According to EN 61326
Immunity To Interference According to EN 61326
Environmental Conditions
Operating Temperature Range

0 to 40 ºC

Max. Relative Humidity 80 % up to 31 ºC decreasing linearly to 50 % 
at 40 ºC
Mechanical Specifications
Dimensions (WxHxD) 96 x 96 x 66 mm
Weight 210 g (unit) / 310 g (packed)
Ingress Protection IP65

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