The ERTCO-Eutechnics High Precision Digital Thermometer is a multi-purpose, economical, ultra-high accurate, hand held thermometer. The probes are manufactured from the highest grade thermistor wire available and are comparable to digital instruments costing three times the price. A model with RS-232 option is available to maintain permanent records. An AC adapter is also available for continual 110v use.

• FURNISHED WITH 7” STAINLESS STEEL PROBE OR  MICRO PROBE (1” X 0.03” DIA)

• ULTRA-HIGH ACCURACY 0 to 70° C. : ± 0.025° C, 0 to 100° C. : ± 0.030° C, -20° C to 130° C. : ± 0.050° C

• HIGH RESOLUTION (0.01^oC) 

• RANGE -20 TO 130^oC and -30 TO 260^oF   (Selectable from panel)                          

• AUTO SHUT-OFF (SELECTABLE AUTO/MANUAL)           

• RUGGED FIELD-TESTED ABS CARRYING/STORAGE CASE STANDARD

• LOW BATTERY INDICATOR

• OVER/UNDER RANGE INDICATOR

HART SCIENTIFIC DIGITAL THERMOMETER 1502A                         

HART’s high precision 1502A PRT digital thermometer readout is designed with metrology laboratory and industrial laboratory applications in mind.

PROBE SIZES AND SPECIFICATIONS:

The Model 1502A Tweener features accuracy up to ±0.006°C. In addition, it reads both 100-ohm and 25-ohm probes, has a resolution of 0.001°C across its entire range and is the smallest unit in the industry. It also has an optional battery pack for completely portable operation.

Each Tweener is programmable to match any probe’s constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in °C, °F, K, or resistance in ohms.

The 1502A accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.

For convenience, the 1502A reads the common industrial grade IEC-751 or “385” ALPHA RTD without any programming. Enter the actual R0 and ALPHA of the individual probe for increased accuracy. For maximum accuracy, use the ITS-90 formulas. The Tweener accepts the subranges 4 and 6 through 11.

ITS-90 formulas reside in its firmware. If your probe has been calibrated for any of the subranges of the ITS-90, you simply enter the coefficients directly into the Tweener.

Each thermometer comes complete with an RS-232 interface for automation of temperature data collection, calibrations, or process control functions. An IEEE-488 interface is available as an option.

The 1502A is calibrated digitally using the front-panel buttons. You never have to open the box to calibrate it. This calibration protocol further reduces the cost of the 1502A. It goes where you go and works the way you want it to.

Software

With Hart's Model 9934 LogWare software, the Tweener may be used for real-time data acquisition. Collect data and analyze it graphically or statistically.

Battery Option

If you want freedom from AC power in the field or on the plant floor, order Model 2502 and we’ll install a DC power board in your Tweener. Then you can connect your own 12-volt DC power or order Hart’s 9313 Battery Pack. The battery gives you three to eight hours between charges. It includes a charger and a nylon pouch with a belt clip.

ISO/IEC 17025, NIST Traceable report of calibration @ test points –196, -40, 0, 200 & 400°C

Hart Scientific Handheld Standards Thermometers

Models 1521 and 1522

Fitting easily into your hand and weighing only 1 pound (0.4 kg), these thermometers can go anywhere.  And when they get there, you can have total confidence in the accuracy of your measurements.  The 1522 has the power of a full data logger, with memory to hold 10,000 readings. 

The 1521 and 1522 read both PT-25 and Pt-100 RTDs as well as thermistors. 

PRTs and RTDs, with their wide temperature ranges and stabilities, have long been favored as temperature standards. From –200°C to 100°C, the 1521 reads PRTs accurately to ±0.025°C. Even at 800°C these are high-precision readouts, accurate to ±0.1°C.

Ultra-stable thermistors offer excellent stability and even greater accuracies over a more narrow range—typically from about –10°C to 110°C. At temperatures below 50°C, these Handheld Thermometers read thermistors to ±0.005°C. Accuracy at 100°C is ±0.02°C.

While a small number of handheld thermometers on the market offer 0.01° resolution, they fail to provide the accuracy necessary for the last digit to be meaningful. Hart’s Handheld Thermometers let you select resolution from 0.1° to 0.001° and offer the accuracy to support even 0.001° resolution. 

ISO/IEC 17025, NIST Traceable report of calibration @ test points –196, -40, 0, 200 & 400°C

• Temperature ranges: -40/300ºF or
  –40/150ºC, user selectable from
  keypad  Note: recommended range of use -20/120ºC

• Display resolution: 0.1ºF or C

• Battery: 9v alkaline (regular transistor
  battery)

• Sensor: thermistor element, enclosed
  in stainless steel sheath

• Display: Large illuminated LCD, with
  backlight function for low light
  conditions.

• Min/Max memory

• Battery eliminator jack for continuous
  operation. Requires power supply No.
  9313 (optional)

• Case: Rugged plastic carrying /
  storage case included (see smaller
  photo below)

TL-1A Digital Laboratory Thermometer

The TL-1 emulates glass thermometer simplicity and reliability with the ease of a 2 decimal place digital display. Excellent accuracy and a wide temperature range. Replaces a set of 9 lab grade mercury thermometers. One year warranty.

See Specification Sheet

New Features:

• Temperature Logging & Averaging

• Temperature trend and stabilization indicators

• Automatically shuts off after twenty minutes

• Intrinsically Safe Certification

The TL-1W is a modified field version of our successful TL-1A thermometer. It features a rugged frame for reinforcement and is designed for continuous operation but can be easily powered off if desired. The TL-1W thermometer is intended to be used anywhere a precision glass stem thermometer or other type thermometer may be used. The TL-1W incorporates glass thermometer simplicity and reliability with the ease of a digital display.

See Specification Sheet

New Features:

• Temperature Logging & Averaging

• Temperature trend and stabilization indicators

• Automatically shuts off after twenty minutes

• Intrinsically Safe Certification

HANNA INSTRUMENTS MICROPROCESSOR K – TYPE
THERMOCOUPLE THERMOMETER

For verification of ovens and muffle furnaces

This thermometer allows temperature measurement using interchangeable K-type thermocouple probes. The thermometer uses a microprocessor to linearize the response of the thermocouple in order to achieve high degree accuracy and
resolution. It also permits accurate compensation for drifts in the measurement circuit and the reference junction.

Standard feature include:

* Display of the temperature in Celsius or Fahrenheit
* Reading hold
* Low battery detection

These functions are easily accessible through the keypad. Self-explanatory symbols are used to remind the user of the operating mode or condition.
Specifications:

Range: -200.0 to 999.9^oC (-300.0 to 999.9^oF)

Resolution: 0.1^oC (-200 to 999.5^oC)

Accuracy: +/- 2.2^oC or 75% of reading

Battery life: 100 hours – 4 X 1.5V AAA

Environment: 0 to 50^oC (32 to 122^oF) 100%RH

Dimensions: 196 X 80 X 60 mm (7.7 X 3.1 X 2.4 in)

Weight: 425 g (15 oz)