orp (redox) specifications

Click the following links to jump to your specifications of interest:

STs2010 -- for submersion applications, 4-20 ma output
STs2010T -- for submersion applications with additional temperature output (4-20 ma)
STs2010B -- for submersion applications, 0.00 to 2.50 vdc output, battery powered

download STs2010 ORP (redox) brochure (130kb)?

series STs2010, 2-wire, 4-20 ma orp (redox) sensor/transmitters

output

4 to 20 ma

power supply voltage

7 to 40 vdc

loop impedance (max)

250 ohms at 12 vdc,  1650 ohms at 40 vdc

cable from transmitter to power supply

2 conductor, twisted pair, 3 mile maximum

isolation

600 VDC, >70 db at 50/60 Hz

See additional specifications below that apply to all versions -- click here

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series STs2010B, voltage output orp (redox) sensor/transmitters with replaceable battery, or for external supply provided by user

output

0.00 to 2.50 volts (or specify desired output)

power supply voltage

self contained, replaceable lithium battery, or external 4 to 16 volts DC supply 

output impedance (max)

1 Megohm (prevents premature failure of battery if leads are shorted)

cable from transmitter to power supply

4 conductor, twisted pair, 1000 feet max

isolation

none

See additional specifications below that apply to all versions -- click here

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series STs2010T, 2-Wire, 4-20 ma orp (redox) sensor/transmitters with optional, additional 2-wire, 4-20 ma temperature output

output

4 to 20 ma

range

0-50 degrees Celsius

power supply voltage

7 to 40 vdc

loop impedance (max)

250 ohms at 12 vdc, 1650 ohms at 40 vdc

cable from transmitter to power supply

4 conductor, twisted pair, 3 mile maximum

isolation

600 vdc, >70 db at 50/60 Hz

See additional specifications below that apply to all versions -- click here

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The following data pertains to all configurations:
electrode type double junction, platinum combination electrode

linearity (of electronics)

± 4 mv

accuracy

± 4 mv

sensitivity

± 1 mv

stability

± 2 mv

repeatability

± 10 mv

response time (including electrodes)

95% < 20 seconds

temperature compensation

none

input range

-1000 to +1000 mv, 0 to +1000 mv
0 to -1000 mv, or custom ranges

ORP sensing range -1000 to +1000 mv, 0 to +1000 mv
0 to -1000 mv, or custom ranges

pressure

0-100 psi

humidity

0-100%

wetted materials

316 SS, Kynar, Teflon, Viton
optional titanium housing

length

343 mm  (13.5 in.)

diameter

19 mm  (0.750 in.)  maximum

standard cable length, model STs 10 meters (approx 33 feet)

shipping weight (excluding cable)

< 0.22 kg   (0.5 lb.)

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