Replacing The Battery; Specifications - Extech Instruments 401025 User Manual

Replacing the Battery

When the left corner of the LCD display shows LO BAT the battery output is below the design limit and
the battery needs to be replaced. However, reliable measurement can still be taken for several hours
before the tester becomes inaccurate or switches off.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end-of-
life devices to a designated collection point for the disposal of electrical and electronic equipment.

Specifications

General Specifications
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1. Open the Battery Cover at the back of the tester and remove the old battery.
2. Replace with a new 9V battery and install the cover securely.
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate
collection sites, the retail store where the batteries were purchased, or wherever
batteries are sold.
Display 13mm (0.5") LCD (Liquid Crystal Display)
Measurement types Lux, Ft-candles (Fc)
Ranges (see range table Lux: 0 to 50,000 Lux in 3 ranges
below)
Foot-candles: 0-5,000 Fc in 3 ranges
Sensor Exclusive photo diode & color correction filter, spectrum
designed to meet C. I. E.
Zero Adjust Manual adjustment
Sampling Time Approx. 0.4 seconds
Response Time Fast: 0.4 seconds; Slow: 2 seconds
Over input indication Indication of "1__"
Analog Output 0.1 mV/1 digit (maximum output: 200mV)
Operating Temperature 0 O C to 50
Operating Humidity Less than 80% RH
Power Supply 9V DC battery
Power Current Approx. 2 mA DC
Weight 220 g (0.52 lbs.)
Dimensions Main instrument: 163 x 70 x 30 mm (6.4 x 2.8 x
Sensor Probe: 85 x 55 x 12 mm (3.2 x 2.2 x
Optional Accessories Vinyl pouch carrying case (Part Number 409996)
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