G115 Submersible (IP68) Rugged Stand Alone Linear Position Sensor
CSA approved intrinsically safe underwater sensor for hazardous gas atmospheres
This sensor at a glance
Available in any measurement range from 0-5mm to 0-800mm
Longer operating life than a potentiometer
Fast delivery options available
Body Diameter: 35mm
Sensor Mounting: M8 rod eyes, body clamps or M8 threads
Spring loaded pushrod option available
Sealed to IP68 10bar, 100msw, 145psi
(for 350bar sealing see G125)
Independent Linearity:
< ±0.25% up to 450mm
< ±0.5% over 450mm
< ±0.1 % option available
Resolution: Infinite
Temperature range: -40°C to +80°C
Intrinsically Safe G115 is CSA approved for use in potentially explosive gas/vapour atmospheres. The G115 is a heavy-duty version of the G114 sensor with a stronger 12.6mm push rod, recommended for applications where vibration is an issue or there is a need for longer travel sensors which are to be mounted horizontally between rod eyes. It remains an affordable, durable, high-accuracy position sensor designed for applications where the sensorrequires IP68 Sealing. The unit is highly compact and space-efficient, being responsive along almost its entire length. Like all Positek® sensors, the G115 provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, from 0-5mm to 0-800mm and with full EMC protection built in.
The sensor is very robust, the body and push rod being made of stainless steel for long service life and environmental resistance.
Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is easy to install with mounting options including stainless steel M8 rod eye bearings and body clamps. The push rod can be supplied free or captive, with female M8 thread, or an M8 stainless steel rod eye. The G115 also offers a selection of mechanical and electrical options, environmental sealing is to IP68 10 Bar.
Positek intrinsically safe sensors are designed to be used with a galvanically isolated amplifier. Approved galvanic isolation amplifiers (G005) are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.
The sensor can be installed with a cable length up to 1km between the sensor and the amplifier.
Intrinsic Safety
| CSA Approval | This sensor is CSA approved to: Class I, Zone 0 Ex ia IIC T4 (Ta = -40°C to +80°C) AEx ia IIC T4 (Ta = -40°C to +80°C) Designates the sensor as belonging to; Class I, Zone 0: suitable for all areas except mining, : can be used in areas with continuous, long or frequent periods of exposure to hazardous gas / vapours. Protection class ia IIC, denotes intrinsically safe for Zones 0, 1 & 2 and IIA, IIB and IIC explosive gases. Temperature class T4: maximum sensor surface temperature under fault conditions 135°C. Ambient temperature range extended to -40°C to +80°C. Approval only applies to the specified ambient temperature range and atmospheric conditions in the range 0.80 to 1.10 Bar, oxygen <=21%. |
| Galvanic Isolation Amplifier | It is imperative Positek® intrinsically safe sensors be used in conjunction with a galvanic barrier to meet the requirements of the product certification. The Positek G005 Galvanic Isolation Amplifier is purpose made for Positek IS sensors making it the perfect choice. Refer to the G005 datasheet for product specification and output configuration options. The Positek® G005 Galvanic Isolation Amplifier is available with 0.5 - 9.5V or 4 - 20mA transmission output options or reverse outputs of 9.5 - 0.5 volts or 20 - 4 mA. |
Dimensions
| Body Diameter | 35mm |
| Body Length | See drawing |
| Push Rod Extension | Measurement length + 9mm |
| Push Rod Outside Diameter | 12.6mm |
| Travel | Any stroke from 0-5mm to 0-800mm (e.g. 305mm) |
| Independent Linearity | <±0.25% up to 450mm |
| Temperature Coefficient | <±0.01%/°C Gain & <±0.01%FS/°C Offset |
| Resolution | Infinite |
| Noise | <0.02% FSO |
| Frequency Response | >10KHz (-3dB) |
Temperature Limits
| Operating | -40 to +80°C |
| Storage | -40 to +125°C |
Other
| EMC Susceptibility | EN 61000-6-2 |
| EMC Radiated | EN 61000-6-3 |
| Vibration | IEC 68-2-6: 10g |
| Shock | IEC 68-2-29: 40g |
| MTBF | 350,000 hrs 40°C Gf |
| Sealing | IP68 10bar (for 350bar sealing see G125) |
| Electrical Connections | Screened cable |
Positek offers a range of options for its standard sensors. Each sensor is manufactured to suit each customer's preferences. If your requirement is outside the options given below, Positek can modify/ redesign a sensor to suit your specific requirement. Standard options are available as below:
Measurement Range
Factory set to any length from 0-5mm to 0-800mm in increments of 1mm. For example, if your application requires 10" (254 mm) measurement, then Positek will manufacture the sensor specifically for this length. The mechanical length and calibration will be set up for 254 mm.
Connector/Cable Options
| Option |
Option Code |
| Cable with PG9 gland Axial, Gland IP68 |
L (3 core cable) LQ (5 core cable) (click for more information) |
| Cable with PG9 gland Radial, Gland IP68 | I (3 core cable) IQ (5 core cable) (click for more information) |
| Cable
length - The standard length of cable supplied with a Positek position
sensor is 50cm although you can specify any length you require up to a
maximum of 15,000cm |
Specified in cm after the L/LQ or I/IQ e.g. L200 for 200cm 3 core cable from axial cable gland |
Mounting Options
| Option |
Option Code |
| M8 rod eye on body (only with option "I") |
N |
| Body clamps, 1 pair (see drawing) |
P |
| Body clamps, 2 pair (see drawing) |
P2 |
| M8 rod eye on push rod |
U |
Push Rod Options
| Option |
Option Code |
| Spring loaded (extended) (up to 300mm storke - for longer strokes please contact Positek) |
R |
| Spring loaded (Retracted) (up to 300mm storke - for longer strokes please contact Positek) |
S |
| Dome end on push rod (only with option "R") |
T |
| Non-captive push rod |
V |
| <+/-0.1% FSO Linearity error (≥10mm and ≤400mm stroke length) | Option Code Z650 |
Click Here for approved Galvanic Isolation Amplifier Options
| Galvanic Isolation Amplifier |
Click for PDF |
| Outline |
Click for PDF
Request AutoCAD Drawing |
| Datasheet |
Click for PDF |
| Installation Sheet |
Click for PDF |
