Hach-Lange pHD sc - Manual (Page 7)

1
Section 1 Specifications
Specifications are subject to change without notice.
Table 1 Differential pH and ORP Sensor Specifications
Specification Category pH Sensors 1 Stainless Steel pH Sensor ORP Sensors 2
Wetted Materials
PEEK ®3 or Ryton ®4 (PVDF)
body, salt bridge of matching
material with Kynar
®5 junction,
glass process electrode, titanium
ground electrode, and Viton
®6
O-ring seals (pH sensor with
optional HF-resistant glass
process electrode has 316
stainless steel ground electrode,
and perfluoroelastomer wetted
O-rings; for other wetted O-ring
materials consult the
manufacturer)
Immersion mounting only,
316 SS Stainless Steel body
with Ryton
® (PVDF) ends and
salt bridge.
PEEK ® or Ryton ® (PVDF)
body, salt bridge of matching
material with Kynar
® junction,
glass and platinum (or glass
and gold) process electrode,
titanium ground electrode, and
Viton
® O-ring seals
Operating Temperature
Range
–5 to 70 °C (23 to 158 °F) for
sensor with integral digital
electronics
–5 to 105 °C (23 to 221 °F) for
analog sensor with digital
gateway
0 to 50 °C (32 to 122 °F) for
sensor with integral digital
electronics
–5 to 70 °C (23 to 158 °F) for
sensor with integral digital
electronics
–5 to 105 °C (23 to 221 °F) for
analog sensor with digital
gateway
Pressure/Temperature
Limits
(without mounting
hardware) 6.9 bar at 105 °C (100 psi at
221 °F) for analog with gateway
6.9 bar at 70 °C (100 psi at
158 °F)
N/A (immersion only)
6.9 bar at 70 °C (100 psi at
158 °F)
6.9 bar at 105 °C (100 psi at
221 °F) for analog with
gateway
Maximum Flow Rate 3 m (10 ft) per second 3 m (10 ft) per second 3 m (10 ft) per second
Built-in Temperature
Element
NTC 300 ohm thermistor for
automatic temperature
compensation and analyzer
temperature readout NTC 300 ohm thermistor for
automatic temperature
compensation and analyzer
temperature readout NTC 300 ohm thermistor for
analyzer temperature readout
only — not for automatic
temperature compensation
Stability
0.03 pH per 24 hours,
non-cumulative 0.03 pH per 24 hours,
non-cumulative 2 mV per 24 hours,
non-cumulative
Maximum
Transmission Distance 1000 m (3280 ft) with
termination box 1000 m (3280 ft) with
termination box 1000 m (3280 ft) with
termination box
Sensor Cable (integral)
Digital: PUR (polyurethane)
4-conductor with one shield,
rated to 105 °C (221 °F), 10 m
(33 ft) standard length
Analog: Five-conductor (plus two
isolated shields) cable with
XLPE (cross-linked
polyethylene) jacket; rated to
150 °C (302 °F); 6 m (20 ft)
standard length
Digital: PUR (polyurethane)
4-conductor with one shield,
rated to 105 °C (221 °F), 10 m
(33 ft) standard length
Digital: PUR (polyurethane)
4-conductor with one shield,
rated to 105 °C (221 °F), 10 m
(33 ft) standard length
Analog: Five-conductor (plus
two isolated shields) cable
with XLPE (cross-linked
polyethylene) jacket; rated to
150 °C (302 °F);
6 m (20 ft) standard length
Components
Corrosion-resistant materials,
fully-immersible probe with 10 m
(30 ft) cable Corrosion-resistant materials,
fully-immersible probe with 10 m
(30 ft) cable Corrosion-resistant materials,
fully-immersible probe with 10
m (30 ft) cable
Measuring Range
–2.0 to 14.0 pH or –2.00 to 14.00
pH –2.0 to 14.0 pH or –2.00 to
14.00 pH
–1500 to +1500 mV
Probe Storage
Temperature
4 to 70 °C (40 to 158 °F); 0 to
95% relative humidity,
non-condensing 4 to 70 °C (40 to 158 °F); 0 to
95% relative humidity,
non-condensing 4 to 70 °C (40 to 158 °F); 0 to
95% relative humidity,
non-condensing