www.Amprobe.com
Amprobe® Test Tools
Data Sheet
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TMD90A
Digital Thermometer
Dual input, wide measurement ranges
Key features:
Displays T1, T2, and T1-T2
simultaneously
Accepts six different
thermocouple types
Outputs real time
measurement data with
time stamp
Deluxe carrying case and
two Type K probes
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High accuracy, multiple type input
thermometer
Measures from -328°F / -200°C to
3200°F / 1760°C
Accepts Type J, K, T, R, S, E inputs
Triple display of T1, T2, T1 - T2, and
relative time
Deluxe hard carrying case
RS232 output with optional cable
and software, TM-SW
Relative Time Stamp with Min/Max
indicators
The TMD90A is a dual input ther-
mometer that accepts type K, J, T,
R, S, and E thermocouples and is
ideal for HVAC/R technicians, electri-
cians, research, industrial process,
and quality control. The dual inputs
allow easy super-heat and sub-cool
temperature measurement as well as
cut-out and in temperature measure-
ments. The triple display with back-
light shows T1, T2, and T1 - T2 and
includes Hold, Min/Max, Relative,
and Timer / Date Stamp function.
The TMD90A supports dual chan-
nel real time data acquisition using
the built-in RS-232 interface and
optional software and data transfer
cable (Model TM-SWA).
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TMD90A
N10140
www.Amprobe.com
Amprobe® Test Tools
Data Sheet
©2007 Amprobe Test Tools. All rights reserved.
3/2007 PN: 2124071 Rev C
TMD90A Technical Specifications
General Specifications
Operating conditions 0 °C to 50 °C (32 °F to 122 °F) at 0 to 85 % R.H. (non-condensing)
Ambient coefficient 0 °C to 18 °C and 28 °F to 50 °C (ambient temperatures) for each °C ambient below 18 °C or above
28 °C, add the following tolerance into the accuracy spec: 0.01 % of reading +0.03 °C (0.01 % of read-
ing +0.06 °F)
Temperature Accuracy
T/C Type Range Resolution Accuracy
Type K -200 °C to 1370 °C (-328 °F to 2498 °F)
Type J -200 °C to 760 °C (-328 °F to 1400 °F)
Type T -200 °C to 390 °C (-328 °F to 730 °F)
Type R and S 0 °C to 1760 °C (32 °F to 3200 °F)
Type E -200 °C to 736 °C (-328 °F to 1832 °F)
Type K -200 °C to 650 °C 0.1 °C (0.1 % rdg + 0.7 °C)
651 °C to 1370 °C 1.0 °C (0.1 % rdg + 0.7 °C)
-328 °F to 1000 °F 0.1 °F (0.1 % rdg + 1.4 °F)
1001 °F to 2498 °F 1.0 °F (0.1 % rdg + 1.4 °F)
Type J -200 °C to 500 °C 0.1 °C (0.1 % rdg + 0.7 °C)
501 °C to 760 °C 1.0 °C (0.1 % rdg + 0.7 °C)
-328 °F to 940 °F 0.1 °C (0.1 % rdg + 1.4 °F)
941 °F to 1400 °F 1.0 °F (0.1 % rdg + 1.4 °F)
Type T -200 °C to 390 °C 0.1 °C (0.1 % rdg + 0.7 °C)
-328 °F to 730 °F 0.1 °F (0.1 % rdg + 1.4 °F)
Type R/S 0 °C to 1000 °C 0.1 °C (0.3 % rdg + 0.7 °C)
1001 °C to 1760 °C 1.0 °C (0.3 % rdg + 0.7 °C)
32 °F to 1000 °F 0.1 °F (0.1 % rdg + 1.4 °F)
1001 °F to 3200 °F 1.0 °F (0.1 % rdg + 1.4 °F)
Type E -200 °C to 380 °C 0.1 °C (0.3 % rdg + 0.7 °C)
381 °C to 736 °C 1.0 °C (0.3 % rdg + 0.7 °C)
-328 °F to 720 °F 0.1 °F (0.1 % rdg + 1.4 °F)
721 °F to 1832 °F 1.0 °F (0.1 % rdg + 1.4 °F)
Included Accessories
TMD90A dual input thermometer, two
standard Type K thermocouple probes
(TP-255A), hard carrying case, battery
(installed) and user manual.
Optional Accessories
TM-SWA RS232 Cable and Software
• Record both channels simultaneously
• Store real-time results for further
analysis
• Chart measurements for trends
• View time stamp for event analysis
Amprobe® Test Tools Europe
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
6920 Seaway Blvd.
Everett, WA 98203
tel: 877-AMPROBE
