Ametek DTI050
Handheld Temperature Reference Instrument
See: 1523156

  • High Accuracy (to ± 0/005°C/± 0.009°F)
  • Wide Temperature Range (-200 to 2500°C/ -328 to 4532°F)
  • Low Drift
  • Fast Response Time
Click here for larger image - Ametek DTI-050 Handheld Temperature Reference InstrumentClick here for larger image - Ametek DTI-050 Handheld Temperature Reference Instrument
Ametek DTI050 Shown

Product Information
Datasheet 1.4 MB
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The Ametek DTI050 with an Ametek STS temperature reference sensor is a fully traceable thermometer recommended as the reference instrument to verify true temperature in any type of temperature calibrator, liquid bath, or dry-block calibrator.

Use the Ametek DTI050 as your working temperature reference in any calibration application or use the set-up directly for critical measurements in the process. The DTI050 has superior specifications, combined with a long history of reliability and low drift, while the graphical display makes it is easy to recognize the status of the instrument and take readings. The DTI050 also handles signals from 4-wire RTD’s, TC’s and thermistors.

The DTI050 indicator is supplied in a handy soft case as standard. The case is designed for easy vertical operation so when opening the case, there is easy access to all accessories in the pocket. A flap on top of the case provides access to the temperature sensor.

The case includes a shoulder strap for convenient transportation of the instrument when climbing ladders, etc. At the back of the case, a handy strap that fits the hand also makes it possible to hang the instrument on a pipe, ladder or the like while performing the calibration, test, or service task.


Graphical display Large digits display the temperature, info lines show current status and mode, and the small digits show the details of the sensor.
Indicator for low battery Running low on battery an icon in the display clearly shows this
Intelligent probe reading Capable of reading calibration data and other information from the memory of the sensor (standard when using the STS-050 sensors and optional on the STS-100 sensors)..
Input 1 input channel with 6-pin REDEL connector.
ON / OFF Turn the back light on in dark environments.
Resolution 1°C - 0.001°C. Maximum resolution depends on the selected sensor type.
Type Select type of sensor. When using an STS reference sensor with intelligence, the indicator automatically finds the sensor and the data.
Hold Makes it possible to “freeze” the results when doing measurement. The results are saved in the EEPROM, when it is switched off.
Serial interface RS232 serial interface to communicate with JOFRA-CAL calibration software. Also used if adjustment of the unit is necessary.
External power supply It is possible to connect the DTI050 to external 9V supply.
MAX/MIN Reads the highest and lowest value from last reset. Monitor a safety alarm or look for tempera-ture spikes in the process. Min and max are saved in the EEPROM, when it is switched off.
CON050 configuration software for special sensor coefficients
The DTI050 uses intelligent detection technology for sensors. This means that it is able to automatically read calibration data and sensor type from a memory chip placed in the sensor. This chip is standard in the STS-050 series and is optional on the STS-100 series.

The intelligent sensor reading makes it possible to change the sensors used without re-programming your DTI050. When an intelligent sensor is connected, all information about the probe, such as serial number, calibration data and coefficients are read by DTI050. All information can be shown on the display in the config menu for verification. Recalling existing data eliminates errors as a result of programming sensor data.

For updating the information stored in the sensor, DTI050 is supplied with the CON050 configuration software that allows you to edit all information stored in the probe. This includes CVD or ITS90 coefficients for RTD’s, Steinhart Hart coefficients for Thermistors and a second order deviation function for TC-sensors.
Simplified temperature calibration documentation
The DTI050 features an RS232 serial data communication interface. This allows the instrument to be serially connected to a personal computer for data storage and reporting. The JOFRACAL calibration software supports automatic calibration of all Ametek temperature dry-block calibrators via RS232 serial data interface.

For semi-automatic calibrations, the software also supports liquid baths, ice points, or other dry-block heating and cooling sources. Using the software’s ’’SCENARIO’’ function allows for combining instruments in virtually any configuration, including using the DTI050 either as a temperature reference or as an input module for the sensor-under-test.

JOFRACAL calibration software is menu-driven and easy to use, with a complete software controlled calibration procedure, which saves time. This software allows the user to customize his or her calibration routines. The software is easy-to-use so you do not have to be a programmer to configure your own calibration procedures. The software features prompts, menus, and help functions that guide you through the configuration process. Once all calibrations are completed, the JOFRACAL calibration software can be used for post-processing and printing of certificates. The calibration data collected may be stored in the personal computer for later recall or analysis.

The ASM series is an eight channel scanner controlled by JOFRACAL software on a PC. Up to 3 ASM units can be stacked to calibrate up to 24 sensors at the same time. It can handle signals from 2-, 3- and 4 wire RTD’s, TC’s, transmitters, thermisters, temperature switches and voltage.
For more info on the ADM Advanced Signal Temperature Multi-Scanner, please visit to the 7533PC page.



Range 12 month Accuracy
min max
ohm read (low) 0.0Ω 400.0Ω 0.004% rdg ± 0.002Ω
ohm read (high) 400.00Ω 4000.0Ω 0.004% rdg ± 0.02Ω
Ohm Read (Thermistor) kohm 200.0Ω ±0.02% rdg ± 2.0/lexc
200.0Ω 500.0Ω ±0.03%rdg
Resistance Temperature Detector Click for RTD Type Input Chart >>

Thermocouple mV

Range Accuracy
(12 months)
Min Max
TC mV Read -10.000 mV 75.000 mV 0.005% rdg ± 5µV

Maximum current output is 1 mA with an output impedance of = 1 Ω

Thermocouple Cold Junction

Range Accuracy
(12 months)
Min Max
CJC compensation 18 °C (64 °F) 28 °C (83 °F) 0.20 °C (0.36 °F)
CJC outside above - - 0.05 °C (0.05 °F)
TC Type B, C, E, J, K, L, N, R, S, T, U, BP, XK
More Info Click for Thermocouple Input Chart >>
DTI-050 Specifications
Temperature range

Operating Temperature

-10 to 50°C / 14 to 122°F
Storage Temperature -20 to 60°C / -4 to 140°F
Atmospheric humidity 0 to 90%
All specifications specified at ambient temperature 23°C ±5°C / 73°F ±9°F
Outside ambient 23°C ±5°C ±0.001% rdg/°C
Outside ambient 73°F ±9°F ±0.0028% rdg/°F
CJ compensation 18 to 28°C / 64 to 83°F 0.2°C / 0.36°F
CJC outside above 0.05°C/°C / 0.05°F/°F
Power supply


9 VDC/200mA


9 VDC Alkaline (x1)
Battery Life Minimum 10 hours
Low Battery Indicator at 6 VDC
Auto Off 1-30 minutes
RS232 communication interface Connector 3-pin JACK
Communication rate 9600 baud, ASCII
Physical Dimensions Weight 1400 g / 14.1 oz
Size (L x W x H) 188 x 84 x 52 mm / 7.4 x 3.3 x 2.1 in
Ordering Information
Model Description Buy Online Price
DTI050 Ametek DTI050 Handheld Temperature Reference Instrument Discontinued
See: 1523156
Included Accessories
  • 1 - NIST Traceable certificate
  • 1 - Soft case
  • 1 - Shoulder Strap
  • 1 - User manual
  • 1 - 9V battery
  • 1 - RS232 cable
  • 1 - Data logging software
  • 1 - CON050 configuration software
Optional Accessories
Model Description Buy Online Price
STS050 Ametek STS050 Temperature Reference Sensor Please Call