Practical instrument electronics, Specifications, Warranty – Practical Instrument Electronics 520B User Manual
Page 5: Additional information

Practical Instrument Electronics
82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Page 5
General
Accuracy
±(0.015% of Reading + 0.009 mV)
Cold Junction Compensation
± 0.45°F (±0.25 °C)
Millivolt Range
-13.000 to 80.000 mV
Operating Temperature Range
-25 to 60 °C (-10 to 140 °F)
Temperature Drift
≤ 50 ppm of range (includes mV and Cold Junction)
Relative Humidity Range
10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
Size
With Boot
4.96 x 2.73 x 1.79 inches, 126 x 69 x 45 mm (L x W x H)
5.67 x 3.06 x 2.05 inches, 144 x 78 x 52 mm (L x W x H)
Weight
With Boot
8.4 ounces, 0.24 kg (including batteries)
11 ounces, 0.32 kg (including batteries)
Batteries
Four “AA” Alkaline 1.5V (LR6)
Battery Life
50 Hours
Optional NiMh Rechargeable battery kit
120 VAC for North America Only; charger, four NiMh
batteries, AC & DC cords [Part # 020-0103]
Low Battery
Low battery indication with nominal 1 hour of life left
Protection against misconnection
Over-voltage protection to 60 V dc (rated for 30 seconds)
Display
High contrast graphic liquid crystal display. LED backlighting
for use in low lit areas.
Source
Output Impedance
< 0.3 Ohms
Source Current
> 20 mA (drives 80 mV into 10 Ohms)
Noise
≤ 4 microvolts p-p for frequencies of 10 Hz or below
Specifications
(Unless otherwise indicated all specifications are rated from a nominal 23 °C,
70 % RH for 1 year from calibration)
Warranty
Our equipment is warranted against defective material and workmanship (excluding batteries) for a
period of three years from the date of shipment. Claims under warranty can be made by returning
the equipment prepaid to our factory. The equipment will be repaired, replaced or adjusted at our
option. The liability of Practical Instrument Electronics (PIE) is restricted to that given under our
warranty. No responsibility is accepted for damage, loss or other expense incurred through sale or
use of our equipment. Under no condition shall Practical Instrument Electronics, Inc. be liable for any
special, incidental or consequential damage.
Additional Information
This product is calibrated on equipment traceable to NIST and includes a Certificate of Calibration.
Test Data is available for an additional charge.
Practical Instrument Electronics recommends a calibration interval of one year. Contact your local
representative for recalibration and repair services.