Delmhorst Instrument TM-100 User Manual
Delmhorst Instrument Tools
DELMHORST INSTRUMENT COMPANY
MODEL TM-100 ELECTRONIC THERMOMETER
OWNER’S MANUAL FOR STORED CROPS
The TM-100 is a solid-state, portable, battery operated instrument for measuring
temperature over the range of -40º to 300º F and -40º to 150º C. Readings
below or above the temperature levels mentioned are to be taken as “no
readings.”
A typical Grain Temperature Probe System includes:
One (1)TM-100 Electronic Thermometer
One (1)TS-107 Grain Probe (Sensor)
One (1) SH-44 Sensor Handle
Three (3) PE-22 Probe Extensions (3 ft. long each). Three is the
suggested number but additional extensions may be used.
IMPORTANT:
Keep threads on the extensions clean and lubricated to
avoid binding.
INSTRUCTIONS FOR USE:
1.
Attach the TS-107 Sensor to one of the PE-22 extensions, and connect
additional extensions as necessary. Connect the SH-44 Handle to the last
PE-22 extension and to the meter. In some cases, depending on the type
and size of the bin, it may be advisable to connect no more than two
extensions (with the sensor attached to the first one) and drive them into
the grain. One or more extensions are then connected to the last one as
the probe is progressively pushed into the grain.
This procedure is necessary when more than three PE-22 extensions are
used, since it would be awkward to handle a probe made of 4 to 5
extensions (12 ft., 15 ft., or even more feet long).
2.
The system is now ready for use. Once the probe is in the grain, the
meter is read by pressing the on/off keypad once to turn the instrument
on. The correct reading is the one obtained once the meter has stabilized.
Several factors affect the time for stabilization: the amount of air
movement, the grain being tested, the moisture content of the grain. In no
instance, should stabilization time be longer than four to five minutes.