MANUAL ADDENDA
Improvements or changes to this manual will be explained on an
addendum included with the instrument. All changes information
should be incorporated immediately into the appropriate places in the
manual.
UNPACKING AND INSPECTION
Each instrument is inspected both mechanically and electrically before shipment.
Upon receiving your instrument unpack all items from the shipping container and
check for any obvious damage that may have occured during transit. Report any
damage to the shipping agent. Retain and use the original packing materials if
reshipment is necessary.
PREPARATION FOR USE
Each instrument is supplied with a 9 volt battery (See page 6 of this
manual for battery installation instructions). Connect the appropriate
probe to the miniature TC connector located on the top of the instru-
ment (just above the display).
OPERATION
The digital thermometer is easy to use. There is only one control (locat-
ed on the side of the instrument) that turns the instrument on/off and
selects the range. Use the following procedure to operate the instru-
ment:
1. Select the appropriate temperature probe and insert it into the
miniature TC-input connector, located on the top of the instru-
ment.
2. Turn on the power to the instrument by selecting the desired
range. Note: For the best accuracy always use the low range
when measuring temperatures below 200°.
3. Make the measurement:
A. Touch the probe tip tothe material to be measured.
B. Read the display.
2
OPTIONAL ACCESSORIES
The following accessories can be used with your thermometer to enhance the
performance of the instrument. These accessories are available through your
local Tegam distributor or the factory.
Model 8660 Tilt Stand/Belt Clip/Probe Holder can be used as a tilt stand
or clipped to your belt. It will hold the instrument and one compact probe.
Model 8668 Soft Carrying Case for all models.
TYPE K PROBES (For Models 874F, 874C & 878)
Model 8711A Thermocouple Kit includes the Model 8712 Thermocouple
Sensor, 6m (20’) of AWG #24 Type-K duplex TC wire, a mininature TC plug and
jack, and a standard TC plug and jack.
Model 8712 Thermocouple Sensor is a three foot, 24 gauge TC wire sensor
that has a beaded thermocouple junction. Accuracy is ±2.2°C or 0.75%,
whichever is greater. Time constant is <1sec. Max tip temperature is 480°C or
900°F.
Model 8713 Regular General/Immersion Probe for liquids and general pur-
pose applications. Accuracy is ±2.2°C or 0.75%, whichever is greater. Time con-
stant is 1sec (stirred liquids). Max tip temperature is 900°C or 1650°F.
Model 8733 Compact General Purpose/Immersion Probe has a one foot
(5’ extended) coil cord with a molded plastic handle. Accuracy is ±2.2°C or
0.75%, whichever is greater. Time constant is 1sec (stirred liquids). Max tip
temperature is 200°C or 392°F.
Model 8714A Regular Penetration Probe for measurements within soft or
semi-frozen materials. Accuracy ±2.2°C or 0.75%, whichever is greater. Time
constant is 2sec (stirred liquids). Max tip temperature is 900°C or 1650°F.
Model 8734 Compact Penetration Probe has a one foot (5’ extended) coil
cord, with a molded plastic handle. Accuracy is ±2.2°C or 0.75%, whichever is
greater. Time constant is 1sec (stirred liquids). Max tip temperature is 200°C or
392°F.
Model 8715 Regular Surface Probe for measurements of flat surfaces of
solids. Keeping the sensor tip flush to most surfaces provides fast responding
measurements. Accuracy is ±2.2°C or 0.75%, whichever is greater. Time con-
stant is 3sec (high thermal capacity/conductive solids). Max tip temperature is
400°C or 750°F.
Model 8716 Regular Air/Gas Probe for measurement of air gasses. Exposed
junction within protective shroud responds to ambient temperature while shield-
ed from incident radiation. Accuracy is ±2.2°C or 0.75%, whichever is greater.
Time constant is 3sec (5m/s air flow). Max tip temperature is 300°C or 570°F.
Model 8736 Compact Air/Gas Probe has a one foot (5’ extended) coil cord,
with a molded plastic handle. Time constant is 1.5sec (5m/ air flow). Accuracy
is ±2.2°C or 0.75%, whichever is greater. Max tip temperature is 200°C or
392°F.
7
