Nivetec Signet 2760 DryLoc, Product Manual, Page: 2 / 8

2 Signet 2760 DryLoc pH/ORP Preampli fi er
1. Depressurize and vent system prior to installation or removal.
2. Con
fi rm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure speci fi cations.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction.
6. When using chemicals or solvents care should be taken and
appropriate eye, face, hand, body, and/or respiratory protection
should be used.
WARNING
The retaining nuts of certain pH and ORP sensors and
preampli
fi ers are not designed for prolonged contact
with aggressive substances. Strong acids, caustic
substances and solvents or their vapor may lead to failure of
the retaining nut, ejection of the sensor and loss of the process
fl uid with possibly serious consequences, such as damage to
equipment and serious personal injury. Retaining nuts that may
have been in contact with such substances, e.g. due to leakage
or spilling, must be replaced.
Caution / Warning / Danger
Indicates a potential hazard. Failure to follow all warnings
may lead to equipment damage, injury, or death
Electrostatic Discharge (ESD) / Electrocution Danger
Alerts user to risk of potential damage to product by ESD,
and/or risk of potential of injury or death via electrocution.
Personal Protective Equipment (PPE)
Always utilize the most appropriate PPE during
installation and service of Signet products.
Pressurized System Warning
Sensor may be under pressure, take caution to vent
system prior to installation or removal. Failure to do so
may result in equipment damage and/or serious injury.
Hand Tighten Only
Overtightening may permanently damage product threads
and lead to failure of the retaining nut.
Do Not Use Tools
Use of tool(s) may damage product beyond repair and
potentially void product warranty.
Refer to your local Georg Fischer Sales of fi ce for the most
current warranty statement.
All warranty and non-warranty repairs being returned must
include a fully completed Service Form and goods must be
returned to your local GF Sales of
fi ce or distributor.
Product returned without a Service Form may not be
warranty replaced or repaired.
Signet products with limited shelf-life (e.g. pH, ORP, chlorine
electrodes, calibration solutions; e.g. pH buffers, turbidity
standards or other solutions) are warranted out of box but not
warranted against any damage, due to process or application
failures (e.g. high temperature, chemical poisoning, dry-out) or
mishandling (e.g. broken glass, damaged membrane, freezing
and/or extreme temperatures).
Thank you for purchasing the Signet line of Georg Fischer
measurement products.
If you would like to register your product(s), you can now
register online in one of the following ways:
•
Visit our website www.gfsignet.com.
Under Service and Support click on
Product Registration Form
• If this is a pdf manual (digital copy), click here
Chemical Compatibility Warranty Information
Product Registration
Safety Information
General
Compatible Electrodes
Signet DryLoc Electrodes ..... 2724-2726, 2756-WTP- 2757-WTP,
2764-2767, 2774-2777
Compatible Instruments
Preampli
fi er models to
Signet 5700, 8750 ............. 2760-1, -2, -11, -21
Response Time (includes response time of electrodes):
pH ..................................... < 6 sec. for 95% of change
ORP
.................................. application dependent
Temperature, τ .................. 20 sec.
Electrical (2760-1, -2,-11, -21 Preampli fi ers)
Maximum Offset ................... ± 7 mV
Input Impedance, Z............... > 1011
Ω
Supply Voltage (V+ to V–) .... 6 to 12 VDC
Current consumption ............ < 1 mA
Environmental
Enclosure Rating .................. 2760-1, -2, NEMA 6P/IP68
2760-11, -21, NEMA 4
with electrode and watertight
conduit and/or extension pipe
connected
Materials
Submersible versions........ CPVC (Gray)
In-Line versions................. PBT (Yellow)
Cable .................................... 4.6 m (15 ft) 6-conductor
w/shield, 22 AWG
Maximum cable: ................... 122 m (400 ft)
Shipping Weight: .................. 0.64 kg (1.41 lb)
Operating Temperature ......... 0 °C to 85 °C (32 °F to 185 °F)
Storage Temperature ............ –20 °C to 85 °C (–4 °F to 185 °F)
Relative Humidity.................. 0 to 95%, non-condensing
(without electrode connected)
Standards and Approvals
Manufactured under ISO 9001 and ISO 14001
China RoHS (Go to www.gfsignet.com for details)
Speci fi cations