Introduction
HealthSense Installation Guide
Step 1 Plan a Safe Work Site
Ascertain and ensure work complies with all relevant site management procedures.
Step 2 Confirm Proposed HealthSense Location
See Aurtra HealthSense Site Planning Work Instruction Guide.
Step 3 Confirm HealthSense Packing List
- Aurtra HealthSense
- Machined connector with bleed valve (male, 3⁄4” BSPP/NPT, to female, 1⁄2” BSPP/NPT)
- DIN rail mount power supply (HDR-15-24):
- Input: 85 – 264 VAC (120 – 370 VDC)
- Output: 24 VDC
- Low voltage power cable with M12 connector
- External temperature sensor with 10m cable and M12 connector
- In-line cable ties for affixing external temperature sensor
Step 4 Confirm HealthSense Probe Specification
Prior to installation, ensure the sensor is undamaged.
Ensure the Healthsense probe has not been damaged in transport or during a previous installation attempt. In particular, check the Teflon end-tip for signs of damage and that it is secure and tight. If there are any signs of damage, or if the tip or shaft is loose or out of shape, do not proceed with the installation. Contact Aurtra at support@aurtra.net for a replacement.
Prior to installation ensure the sensor is the right length.
The probe of Aurtra’s HealthSense only needs to reach within 50 mm of tank oil flow in 75mm valves stems and 35 mm for 50mm valve stems to have sufficient oil flow to report accurate data. It should not extend more than 20 mm into the transformer tank (beyond the tank’s internal wall) to ensure that the sensor tip is not exposed to excessively high magnetic fields.
Before installation, double-check the length of the supplied HealthSense probe against the length of the transformer pipe. If the sensor is likely to penetrate too far into the tank, consider using a male-to-female ½” extension adapter to extend the length of the mounting assembly. These adapters are commonly available. Alternatively, a different probe length can be sourced from your supplier or Aurtra.
Step 5 Installation of Aurtra HealthSense
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Ensure that the valve is closed or, if there is no valve, that excessive oil leakage will be avoided. Remove the plug from the transformer valve pipe.
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Following internal workplace practices, wipe the sealing surfaces and internal thread clean.
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If required, install additional adapters (threaded flange plate, reducing bush, etc.) until a female, ¾” BSPP/NPT thread is available on the valve.
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Inspect the two O-rings inside the provided connector for any signs of damage. Lubricate the O-rings with oil.
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Using a sealing compound (or PTFE tape), screw the connector (male, ¾” BSPP/NPT) into the female thread on the pipe, flange plate or bush. After tightening, ensure the bleed valve or oil sample valve in the connector is facing upwards.
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Insert the HealthSense probe into the connector by pushing firmly until the Teflon end-tip is past the two O-rings (approx. 70 mm). Ensure that the tip of the probe is clear of the valve opening mechanism.
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At the connector, open the bleed valve by removing the nut and loosening the screw (or open oil sample valve slightly). The bleed valve screw requires a 2.0 mm (5/64”) hex screwdriver.
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Open the transformer valve. Allow the valve and connector to fill with oil and any trapped air to escape. Tighten the bleed valve screw or oil sample valve to prevent the escape of excess oil. For the bleed valve connector, add the nut to the tightened screw.
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Push the probe further through the connector and into the transformer pipe, stopping just before the thread on the sensor.
Note that the probe should not extend further than 20 mm beyond the internal wall of the transformer tank.
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Apply suitable thread tape to the male ½” BSPP thread on the HealthSense unit. Screw the sensor into the connector and adjust the angle of the sensor so that the M12 connectors are angled downward. This prevents the pooling of water around the connectors and allows the cables to enter with a sufficient drip angle.
Step 6 External Temperature Sensor
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Using the supplied in-line cable ties, attach the external temperature sensor to a suitable radiator pipe at the top of the transformer. Ensure that the exposed metal pad of the sensor is in direct contact with the pipe to guarantee a good thermal connection.
- Route the external temperature sensor cable to the main HealthSense unit. Secure with split conduit or cable ties in accordance with internal company procedures.
- Screw the male 5-pin M12 connector of the external temperature sensor into the HealthSense unit.
Step 7 Power Supply
Aurtra’s HealthSense is provided standard with an 85 – 264 VAC (110 – 370 VDC) to 24 VDC, DIN rail mount power supply and low voltage cabling with a pre-installed 5-pin M12 connector.
- Install the DIN rail mount power supply into a suitable power panel/switchboard in accordance with electrical installation rules and internal company procedures. Connect the live and neutral terminals on the power supply to any mains supply in the voltage range: 85 – 264 VAC or 110 – 370 VDC. Aurtra recommends that the supply be connected through a 5 – 10 A circuit breaker.
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Route the provided low voltage power cable from the low voltage side of the DIN rail power supply to the HealthSense unit, in accordance with your organization’s electrical work standards. ENSURE THE RED CORE ON THE PROVIDED CABLE IS CONNECTED TO THE +V TERMINAL ON THE POWER SUPPLY AND THE BLACK CORE IS CONNECTED TO THE -V TERMINAL (SEE PICTURE BELOW). The cable should be enclosed in a flexible conduit where possible.
- Screw the female 5-pin M12 connector of the power cable into the HealthSense unit. If a power cable other than the supplied low cable has been used, ensure that the +V on the power supply is connected to Pin 1 on the M12 connector and -V on the power supply is connected to Pin 3 on the M12 connector.
Step 8 Powering Up the HealthSense
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Once the sensor is fully installed, switch on power to the device. Always delay 2 minutes after turn-on before turning off and delay 20 seconds after turn-off before turning on.
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Wait for 5 to 10 minutes to give the logger time to complete its first upload.
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On a phone, laptop, or tablet, go to http://install.aurtra.net/ and enter the 7-digit Logger ID of the installed device. The Logger ID can be found near the connectors (see below).
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The http://install.aurtra.net/ website will confirm if the unit has successfully uploaded and will provide the initial temperature and moisture reading from the sensor. Please note that this record will only last for 1 hour after the upload has occurred. If the test is unsuccessful, see the Troubleshooting guide below.
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If the installation was successful, data will be available on the Aurtra website (https://www.aurtra.net/) within 30 hours of powering up the HealthSense unit.
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Authorized users will receive an email containing their account information which can be used to login and view the data pertaining to their transformer.
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