1521/1522 Handheld Thermometer Readouts

Specifications

1521

1522

Sensor Type

Pt 25 to Pt 100

Thermistor

Temperature Range

–200°C to 962°C

–50°C to 150°C

Resistance Range

0W to 400W

0W to 500 KW

Characterizations

ITS-90, IEC-751 (DIN “385”),
Callendar-Van Dusen

Steinhart-Hart thermistor
polynomial, YSI 400 (2252 ohms)

Temperature Accuracy (meter only)

–200°C to 100°C: ±0.025°C
100°C to 400°C: ±0.05°C
400°C to 800°C: ±0.1°C
800°C to 962°C: ±0.15°C

0°C to 50°C: ±0.005°C
50°C to 75°C: ±0.01°C
75°C to 100°C: ±0.02°C

Excitation Current

0.5 mA

5 mA

Operating Range

0°C to 40°C

Resolution

0.001°

Measurement Period

1 second

Digital Filter

1- to 60-second exponential filter

Probe Connection

INFO-CON Connector

Communications

RS-232 (Model 1522 also includes infrared interface)

Memory

Stores 6 readings in “Hold” mode

Logs 10,000 readings in “Auto Logging” mode; logs 100 readings in “Demand Logging” mode. Memory holds up to 25 data labels that may be attached to Demand Log readings or Auto Log data sets.

Display

6-digit, 7-segment LCD with 16x1 alphanumeric

Power

Rechargeable nickel-metal-hydride batteries (AC adapter included)

Size

7.75" H x 4.2" W x 1.5" D (20 x 11 x 4 cm)

Weight

1 lb. (0.4 kg)

Probes from Hart

Contact Hart for a wide variety of precision PRTs and thermistors

Calibration

Accredited 10-point, NIST-traceable resistance calibration provided