dipper-Temp
Temperature Meter
Operating and Maintenance Instructions
www.heroninstruments.com
dipper-Temp temperature meter Instructions
General Care of Heron dipper-Temp
Heron Instruments Water Level Meters are quality, robust units that will give many years of reliable service if these recommendations are
followed:
Avoid sharp edged casing, use the tape guide on the unit.
Take care to avoid the tape becoming entangled with other equipment in boreholes or wells, use stilling pipes when possible.
DO NOT use the
dipper-Temp
as a guide to backfilling, bentonite sealing or sand packing in wells. This type of material falls through the
water column at a much slower rate than the
dipper-Temp
probe and can result in a trapped probe and tape.
Neatly rewind and clean the tape after each use.
Refer to:
Cleaning the Heron temperature meter
Warranty is conditional upon adherence to these guidelines
Equipment Check
Before taking the unit into the field, carry out these simple tests. Push the test button in air, unit will display air temperature (see Figure 1),
and make sure the two panel retaining thumb screws (nuts) are tight.
The unit is off until the probe is in water or the test button is pushed. Pushing the test button in air gives the air temperature.
NOTE: There is no on/off switch on the instrument, the water is the switch. The
dipper-Temp
consumes no power when the probe is not in
water.
When LOW BATT is displayed, the 9 volt battery must be changed as soon as possible. NOTE: Accurate battery orientation diagram inside of
battery box. (See Figure 1)
Use in the Field
Reel the tape down the well carefully avoiding the edge of the casing. Hang the
dipper-Temp
on the casing when possible and run the
tape over the guide on the frame leg to avoid cuts and nicks to the tape. Swivel the probe holder on the frame to allow the tape free
movement down the well (See Figure 3). NOTE: The inverted triangle on the probe holder serves as a datum point indicating “top of
casing”.
When the unit sounds, carefully measure the depth to water indicated on the tape from your reference point. Raise and lower the probe in
and out of the water to get a consistent result for water level. Push the left black button to switch the audio signal off, if only doing
temperature profiling.
The right black button is the test button. When pushed, It will signal with an audio and visual indication and will display the temperature in
Celsius.
The temperature reading may take 30 seconds to stabilize.
