Model 1521 has been one of the first standards thermometers to fit into a battery-powered handheld package. It is as accurate as ±0.005°C! You’ll only find this level of accuracy in large desktop units that cost three times more.
Fitting easily into your hand and weighing only 0.4 kg, this thermometer can go anywhere. And when it gets there, you can have total confidence in the accuracy of your measurements.
The 1521 reads both Pt-25 and Pt-100 RTDs. PRTs and RTDs, with their wide temperature ranges and stabilities, have long been favoured 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.
Of course, the 1521 lets you match the exact resistance versus temperature characteristics of an individually calibrated probe. This is true standards thermometry.
Technical specifications:
Voltage: 12 V DC
Current: 800 mA
Sensor type: Pt 25 to Pt 100
Temperature range: –200°C to 962°C
Resistance range: 0W to 400W
Characterizations: ITS-90, IEC-751 (DIN “385”), Callendar-Van Dusen
Temperature Accuracy (meter only): –200°C to 100°C: ±0.025°C – 100°C to 400°C: ±0.05°C
Temperature Accuracy (meter only): 400°C to 800°C: ±0.1°C – 800°C to 962°C: ±0.15°C
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
Memory: stores 6 readings in “Hold” mode
Outer dimensions (W) x (D) x (H): 110 x 40 x 200 mm
Weight: 0.4 kg
