GN 650.8 Oil level indicators with temperature sensor

Photo

ELESA original design
code: HCX+STL

Product description

Information

Oil level indicators GN 650.8 allow the fluid level of a container to be read from the outside. There is also the option to electrically detect the media temperature by means of a temperature sensor integrated in the lower casing section.

To do so, a platinum resistor (PT 100) is used, the ohmic value of which increases virtually proportional with the temperature in the range from 0° and 100 °C.

The polyamide housing consists of two parts, welded with ultrasound.

Oil level indicators GN 650.8 can also be used in pressurised containers. Pressure test results regarding resistance under pressure are available.

Specification

Housing Plastic
crystal-clear Polyamide (PA -T)
  • ageing resistant
  • high mechanical strength
  • temperature resistant up to 90 °C
  • solvent resistant,
    but not suitable for alcohol
  • avoid contact with hot water

Reflector
Aluminum
  • white lacquered
  • with 2 marking lines

Temperature sensor
platinum resistor PT 100 (PTC)

O-rings
Rubber NBR (Perbunan®)

Set screw, hexagon nut, serrated lock washer, sensor housing

Steel, zinc plated, blue passivated



RoHS

On request

Oil level indicators GN 650.7
with temperature sensor and oil level monitoring

Technical drawing

Hide technical drawing
GN 650.8 Oil level indicators with temperature sensor sketch

Article options / Table

Show / Hide columns
l1bdl2l3l4l5l6l7l8l9s ≈
max.
wall thickness
max. permissible
tightening
torque
in Nm
12731M 12238016123171826411212
25435M 12212032912618,51824411210

Build & Price

Distance of the screws l1

Mode of function of the temperature sensor

The interrelation between electrical resistance and the temperature is used for temperature measurement.
The platinum resistor PT 100 changes its ohmic value almost linear in the range from 0° to 100 °C by 0.384 Ω / °C, measured directly at the resistor and beginning with 100 Ω at 0 °C. As platinum resistors have a positive temperature coefficient (PTC), a resistance of 138.4 Ω is reached at 100 °C.

In terms of measurement technology, the change in resistance can be detected in the analogue mode by means of a voltage drop and displayed as temperature value using an appropriate analysis unit.

Please note that the cross-section and the length of the connecting cable influence the total resistance and may therefore impact the measurement result. Also, the use of appropriately shielded and earthed cables is recommended to avoid interference caused by external electrical and magnetic fields.

Elektrical specifications

Measurement voltage:

up to 5 V DC

Measurement current:

2 mA

Connector plug:

DIN EN 175301-803 type C

Protection class:

IP 65

Cable gland:

PG 7, for cable Ø from 6 to 7 mm

max. cable cross-section:

2 x 1,5 mm²

Assembly sequence for cable connection

1. Loosen the fixing screw and pull off the connector plug.

2. Push the contact holder out off the connector casing.

3. Loosen the cable gland, feed the cable through the connector casing and connect to the contact holder.

4. Push the contact holder back into the connector casing and tighten the cable gland for strain relief grip / seal.

5. Push the connector plug over the contacts of the oil level indicator and secure with fixing screw.

Assembly instructions

Two 12,5 Ø bore holes in the container wall are sufficient to mount the GN 650.8 oil level indicator with nuts.

The oil level indicator can also be mounted directly, i.e. without nuts, if the container wall has two M12 threads.

Selected Part (How to order)

Weight: 0,201 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 Euro -> 10 % discount
from 275,00 Euro -> 20 % discount
from 375,00 Euro -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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