Vertical In Place Inclinometers by Keynes Controls
In-Place Inclinometer Sensor Types
Keynes Controls manufactures a range of In-place-inclinometers that can be used to measure Vertical, Horizontal and Fixed Angular Offset movements,
In-Place Inclinometer sensors are available for communications on the SDI12, RS485 and Modbus Networks, The RS485 version Inclinometers can be directly connected Wi-Fi or Local Area Network interfaces for remote measurement applications.
Intelligent and Submersible
All of the Keynes Controls In-Place-Inclinometers are manufactured out of high quality stainless steel components making them perfect for deployment into many locations.
A range of wheel assemblies are available designed to fit the common inclinometer casings.
Measurement Integrity
All of the ARGEs sensor range have the serial numbers and the last calibration date stored internally. The user can access this information for reporting purposes. The sensors can be redeployed at any time with the calibration and serial number records are retained in the sensor.
Single or Dual Axis measurements.
The Keynes Controls range of vertical in-place-inclinometers are used to provide very accurate, low drift displacement measurements.
The Keynes Controls sensors provide measurements directly in SI Units of mm/m (radians).
A full range of spacer bars are available.
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Systems Intrgration & Expansion
Deployment
For simple and fast deployment then I-P-I sensors can be daisy chained together on a network. A single connection links the sensor chain to the digital network. All of the IPI sensors support SDI12 or RS485 communications.
For long term operations individually wire the sensors to the surface and connect together using the expansion blocks. To make installation and support easy to undertake then expansion blocks use spring loaded clamps to secure the cabling. No soldering required.
Communications
- SDI12 - supporting extended range addressing
- RS485 - supporting enhanced address range options.
- MODBUS - 16 bit / 32 bit registers.
- Optional USB Media Converters.
Systems Integration:
All of the Keynes Controls sensors and interfaces can be combined into a single measurement solution no matter the combination of devices. A single piece of freely available software called QLOG can be used to acquire, configure, display results and store measurements into charts and panel meters. Show I-P-I results with vibrating measurements, combine with chemical measurements. Add or remove sensors at the click of a mouse button.
Features
- Free QLOG Windows Software
- Optional USB Interface
- Temperature compensated readings
- Low drift
Product Features
| TYPE | RANGE (Typical levels) |
| Network Type | Auto Detect |
| Resolution: | 0.001 mm/m |
| Accuracy: | +/- 0.05 % reading - accurate solid state sensor |
| Operation | Stand-alone and network operation. |
| Sensor Type | MEMS |
| Range | +/- 20 Deg |
| Protection | Transorb |
| In-built Digital Communications | SDI12 / RS485 / MODBUS |
| Full Digital Operation | |
| Operating Temperature | -10 to 50 Deg-C |
| SI Units | mm/m Degree Celsius |
Read-out Unit
The Keynes Controls In-Place-Inclinometers are offered with a general purpose display unit, as shown opposite.
The display unit can be used to display a range of user defined panel meters and charts showing the results in real-time from a range of sensors and systems.
The QLOG display unit can combine the inclinometer measurements with other geotechnical sensors in a simple to understand and configure display.
All of the sensors can be supplied with a USB interface and expansion blocks. The display unit supports sensors for SDI12 and RS485 communications.
Storage and Handling
When not in use the ARGES Ammonia Sensor By Keynes Controls head should be kept hydrated with the protective cap attached.
Storage temperature range : 2 - 60 Degrees Celsius.
Product Specifications
| Network Type | ENVIRONMENTAL CHARACTERISTICS | |||
| SDI12 | 1.3 Enhanced address | Temperature Range: -10 to 55 Degree Celsius | ||
| RS485 | Enhanced address support | Storage Temperature 2 to 60 Degree Celsius | ||
| MODBUS | 16 and 32 Bit Registers | Water Temperature: 0 to 50 Degree Celsius | ||
| Maximum Depth: 100 m | ||||
| Process Electrodes: | Solid State Non porus Cells | |||
| Processing | Ensemble Averaging | PHYSICAL DIMENSIONS | ||
| Length x Diameter: 35 x 220 mm | ||||
| Weight: 97 g | ||||
| Settling Time |
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Maximum Depth : 100 m (Other range on request) | ||
| Wiper Trigger | SDI12 Command | aM! | ||
| Built-in Network Types: | ||||
| Sensor Type | MEMS | SDI12 V1.3/ RS485 / MODBUS over 485 | ||
| Housing | 316 Stainless Steel | |||
| Sensor Connector | Waterproof wet mate. | Power Requirement | ||
| Voltage Range: 10-18 V DC | ||||
| Data Output | mm/m, Deg C (SI Units) | Standby Current: 6 mA Typical | ||
| Reading: 10 mA Typical |
Please Note: The I-P-I sensors are pre-calibrated at the factory.
Supported Commands
The order for which the measurements are returned from the sensor can be user defined using the sensor configuration settings shown below. Use the free QLOG software to adjust the sensor setup and configuration.
Most Used Commands - SDI12
| Description | Command | Instrument Response |
| Start measurement | aM! | a05\r\n where 05 = time delay before measurement sent |
| Send ID | al! | a14KEYNESCOISO000014\r\n Part description assigned by Keynes |
| Address Query | ?! | Where a = ID number - 0 - 9 (standard) / (a..z) Enhanced SDI-12 0 - 9 / a - z for RS485 |
| Change Address | aAb! | where a = Initial address and b = Final address |
| Start Measurement | aM! | Make a measurement - a = address of sensor Example 1M! starts a measurement for sensor with ID=1 |
| Set Output Variables | XCSTR0 | Sets the parameter order for measurements sent from the sensor - factory set BCDM |
| Read Serial Number | aXSN! | Instrument Response a+Serial-number |
| Calibration Date | aXCD! | Instrument Response a+date |
| SDI12 V1.14 (Default factory settings) | ||
Commonly used with: Vibrating Wire instrumentation
The In-Place-Inclinometers are often deployed with additional geotechnical instruments such as vibrating wire and data acquisition cards.
PT-100 / PT-500 thermistor interfaces cards : NP-1-PT100-24-SD45, NP-1-PT500-24-SD45 , NP-1-PT1000-24-SD45
Strain Gauge / Load Cell Cards
The NP-1-STRAIN-24-SD485 range of single channel voltage input cards. Supporting 1/4, 1/2 and full bridge strain gauges. 120 to 1 K OHM.
Voltage Input Cards
The NP-1-VOLT-24-SD485 range of single channel voltage input cards. Supporting +/- 50 milli-V to 50 V DC.
Thermocouple
Thermocouple cards : NP-1-THERM-24-SD485 2 channel thermocouple interface cards.
Optional Accessories
The optional USB SDI12 media converter can be used to connect The ARGES Ammonia Sensor by Keynes Controls, or a multi-parameter instrument containing the Ammonia Sensor to a Windows PC. The media converter can power the instruments directly from a PC USB port. Status LED indicators show when the instruments are making measurements.
Built-in Communication Options
MODBUS Operations
ALL of the Keynes Controls range of In-Place-Inclinometers support MODBUS network operations The sensors act as a slave unit only and can communicate to suitable controllers and SCADA systems that support the MODBUS Protocol. The sensors support 16 and 32 bit registers. .
The I-P-I sensors can be directly connected to a PC based data acquisition system system using the optional USB-485-Pro media converter. This device can power the chemical sensor and supports the correct timing protocols for data transmission for MODBUS and standard RS485 network communications
Q-LOG Software
The ARGES In-Place-Inclinometers by Keynes Controls are fully integrated into the Keynes Controls Q-LOG software.
Our Q-LOG software runs on the widely recognised Windows Operating system, you have the ability to calibrate, adjust instrument network address, and effortlessly display measurements on a series of panel meters and charts. Conveniently store results in text based files for quick analysis in spreadsheets.
The chart feature for the QLOIG software enables 2 sensors to be plotted on the same chart enabling features off interest to be easily identified.
Experience the convenience of Q-LOG, enabling you to effortlessly make real-time measurements directly onto a laptop.
Connect our In-Place-Inclinometers directly to SDI12, RS485, and MODBUS networks, leveraging the versatility of Q-LOG to acquire measurements on SDI12 and RS485 networks.
SDI12 communications are perfectly suited for seamless integration with data loggers, while RS485 is ideal for larger-scale network applications. Maximise efficiency by simultaneously testing all sensors of a multi-parameter instrument prior to deployment.