pH specifications

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

STs1010 -- for submersion applications, 4-20 ma output
STs1010T -- for submersion applications with additional temperature output (4-20 ma)
STs1010B -- for submersion applications, 0.00 to 2.50 vdc output, battery powered
download STs1010 pH brochure (130kb)?


series STs1010, 2-wire, 4-20 ma pH 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
to top

series STs1010B, voltage output pH sensor/transmitters 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
to top

series STs1010T, 2-Wire, 4-20 ma pH 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
to top

The following data pertains to all configurations:
electrode type	double junction, combination electrode
linearity	� 0.004 pH
accuracy	� 0.014 pH
sensitivity	� 0.01 pH
stability	� 0.03 pH per year
repeatability	� 0.01 pH
response time (including electrodes)	95% < 5 seconds
temperature compensation	automatic, 0-50 � C
input range	0-14 pH
pH sensing range	0-14 pH
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.)
to top

home contact us how do I order? discount policy oem's links about pHionics
wire transfers conductivity pH orp (redox) dissolved oxygen temperature

voice: 1-800-964-0063 (USA), 1-775-246-2711 fax: 1-775-246-2722
e-mail: contact phionics web: http://www.phionics.com

� 1997 -- 2006 by pHionics, Inc.