WATER & SOIL

|

|S

Septum

Tensiometers

Low cost, manual system

|S Ideal for multiple point

|S measurements

Use just one Needle

|S Sensor with unlimited septum tensiometers Display readings with a

|S HydroSense meter Measures water

|S availability to the plant Ideal for irrigation

|S management

The Skye Instruments soil moisture a specially formulated rubber measurement purposes. This measurement range includes both bung. This bung allows a needle means that a single needle sensor dial and electronic tensiometers to type pressure sensor to be can be used to take instantaneous suit every budget.

inserted into the tensiometer shaft readings from an unlimited number to take measurements, and of septum tensiometers at different The electronic versions come in reseals itself when the needle is sites. The hypodermic needle manual or automatic recording removed. The same rubber bung which pierces the rubber bung can systems. The septum can be reused for around 50

be easily replaced. Outputs from tensiometers are part of the repeated measurements before the septum tensiometer sensor replacement.

manual electronic system, ideal for can be read and stored in memory low cost measurements at many using the Skye HydroSense meter, The needle sensor itself consists installation points.

and later downloaded to a PC.

of a high specification pressure transducer housed in a Delrin and The septum tensiometers consist Guidance on the installation and of the same durable clear plastic aluminium head which is fully use of tensiometers is available shaft and porous ceramic bulb as weatherproof. The head is from Skye’s Soil Moisture all Skye tensiometer versions, but designed to fit neatly over the top Measurement Notes, please ask have their top apertures sealed by of the tensiometers for for a copy.





NEEDLE SENSOR SPECIFICATIONS

Dimensions

Operating range

Cable length

Measurement range Calibration & Output Details

-20 to 70°C

0 - 1000mbar

The needle sensor is fitted with 35mm

2m standard

a low pressure transducer (hPa)

stabilised for temperature and (longer if required) linearity. The output is with connector

ratiometric for excitation voltage, but is usually suitable for a

calibrated at 5 volts. The mm

HydroSense meter

transducer behaves as a 58

‘bridge’ type sensor and is suitable for connection to any meter or logger with differential voltage inputs. DataHogs and The HydroSense meter is designed for these sensors.

Housing

Weight

Black delrin, and black Approximately 150

anodised aluminium grams

The needle sensor is designed for use with the HydroSense, but is equally suitable for use with other equipment. It can be supplied wire-ended if required SEPTUM TENSIOMETER SPECIFICATION

Shaft dimensions

Shaft material

Clear acrylic - lengths 20cm to 20mm

100cms



Porous ceramic bulb su s le

th

b

rio g

a

n

ila

V

e

av

Rubber septum stopper L A

mm05

ORDERING INFORMATION

Skye Instruments Ltd Needle Sensor

21, Ddole Enterprise Park SKT 670/I

Needle sensor with HydroSense connector Llandrindod Wells Powys LD1 6DF

Septum Tensiometer United Kingdom

SKT 690/n

where ‘n’ is required length. e.g. SKT 690/20

for a 20cm tensiometer TEL +44 (0)1597 824811

FAX +44 (0)1597 824812

Meter

EMAIL skyemail@skyeinstruments.com SKT 660

HydroSense logging meter WEB http://www.skyeinstruments.com Recommended Accessories TEN/5

Syringe and filling tube recommended for filling and installing all tensiometers





Document Outline


Page 1

Page 2