Model 8717 Hypodermic Probe for the measurement of soft and semi-soft
materials. Miniature junction responds with one second time constant. All stain-
less steel construction is suitable for food industry, biological and chemical appli-
cations. Accuracy is ±2.2°C or 0.75%, whichever is greater. Time constant is
1sec (liquids). Max tip temperature is 500°C or 932°F.
Model 8731 Package of 5 miniature thermocouple connectors. Type K (male).
Model 8732 Standard to miniature thermocouple adapter. The female end of
the adapter is on the standard side. The male end of the adapter is on the minia-
ture side.
TYPE J PROBES (For Model 879)
Model 8722 Thermocouple Sensor is a three foot, 24 gauge thermocouple
wire 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 8723 Regular General Purpose/Immersion Probe for liquids and
general applications. Accuracy is ±2.2°C or 0.75°, whichever is greater. Time
constant is 1sec (stirred liquids). Max tip temperature is 760°C or 1400°F.
Model 8725 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 8726 Regular Air/Gas Probe for measurement of air/gasses. Exposed
junction within protection shroud responds to ambient temperature while shield-
ed from incident radiation. Accuracy is ±2.2°C or 0.75%, whichever is greater.
Time constrant is 3sec. (5m/s air flow). Max tip temperature is 300°C or 570°F.
TYPE T PROBES (For Models 875F & 875C)
Model 8752 Thermocouple Sensor is a three foot, 24 gauge thermocouple
wire sensor that has a beaded thermocouple junction. Accuracy is a ±2.2°C or
0.75%, whichever is greater. Time constant is <1sec. Max tip temperature is
400°C or 752°F.
Model 8753 Compact General Purpose/Immersion Probe for liquids and
general purpose applications. Has a one foot (5’ extended) coil cord, with a
molded plastic handle. Accuracy is a ±2.2°C or 0.75%, whichever is greater.
Time constant is 2sec (stirred liquids). Max tip temperature is 200°C or 392°F.
Model 8754 Compact Penetration Probe for measurements within soft or
semi-frozen materials. 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 con-
stant is 1sec (stir-red liquids). Max tip temperature is 200°C or 392°F.
Model 8756 Compact Air/Gas Probe for measurement of air/gasses.
Exposed junction within protective shroud responds to ambient temperature
while shielded from incident radiation. 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 1.5sec (5 m/s air flow). Max tip temperature is 300°C
or 570°F.
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SPECIFICATIONS
TEGAM
T.C.
TEMPERATURE
ACCURACY2
MODEL TYPE1 RANGE SPAN RESOLUTION (18° to 28°C; 1 year)
874F K 200°F -40.0° to 199.9°F 0.1° ±(0.5% rdg. + 1.0°F)
2000°F -120° to 1999°F 1° ±(1% rdg. + 2°F)
874C K 200°C -40.0° to 199.9°C
0.1° ±(0.5% rdg. + 0.5°C)
1100°C -85° to 1100°C 1° ±(1% rdg. + 1°C)
875F
T 200°F -112.0° to 199.9°F 0.1° ±(0.4% rdg. + 1.1°F)
752°F 200° to 752°F
1°
±(1% rdg. + 2°F)
875C T 200°C -80.0° to 199.9°C 0.1° ±(0.4% rdg. + 0.6°C)
400°C 200° to 400°C 1° ±(1% rdg. + 1°C)
878 K °F -120° to 1999°F 1° ±(1% rdg. + 2°F)
°C -85° to 1100°C 1° ±(1% rdg. + 1°C)
879 J °F -112° to 1400°F
1° ±(1% rdg. + 2°F)
°C -80° to 760°C 1° ±(1% rdg. + 1°C)
GENERAL SPECIFICATIONS
INPUT CURRENT:
< 1 microamp, typical.
REPEATABILITY:
0.3°F (0.2°C) typical for 1 week at constant ambient temperature.
TEMPERATURE COEFFICIENT:
18° to 28°C; included in accuracy specification.
From -10° to 18°, and 28° to 50°C; less than ±(0.025% of rdg +0.1°C)/°C.
ENVIRONMENTAL LIMITS FOR OPERATING:
-10° to 50°C, less than 80% rela-
tive humidity (R.H.) up to 35°C; reduce R.H. limit by 3%/°C from 35° to 50°C.
ENVIRONMENTAL LIMITS FOR STORAGE:
-35° to 60°C, less than 90% relative
humidity up to 35°C, reduce R.H. limit by 3%/°C from 35° to 60°C.
DISPLAY:
3 1/2 digit LCD, 13mm (0.5”) height. Polarity indication. Decimal point when
req’d.
CONVERSION RATE:
1.3 readings per second.
OVERRANGE AND OPEN SENSOR INDICATION:
3 least significant digits
blanked.
MAXIMUM COMMON MODE VOLTAGE:
42V peak to earth.
THERMOCOUPLE INPUT:
Miniature TC Connector.
POWER:
9V alkaline or carbon-zinc (NEDA 1604) battery.
BATTERY LIFE, CONTINUOUS:
350 hours typical with alkaline; 200 hours typical
with carbon-zinc.
BATTERY INDICATOR:
Display indicates “LO BAT” when less than 10% of life
remains.
DIMENSIONS:
160mm long x 69mm wide x 31mm thick (6.3” x 2.7” x 1.2”).
Net weight 210gm (7.5 oz.)
CONSTRUCTION:
Heavy duty ABS plastic housing.
ACCESSORIES SUPPLIED:
Battery and Instruction Manual.
Specifications subject to change without notice.
1Type K=NiCr-NiAl Thermocouple, Type T=Cu-CuNi Thermocouple, Type J=Fe-CuNi
Thermocouple.
2Excludes thermocouple sensor errors.
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