The DB02 is a direct replacement for the discontinued SDi DB01
- Ideal for maintenance of fire and security alarm systems
- Easy to use
- Unit conforms to the IEC651 type 2, ANSI S1.4 Type 2 (Required by NFPA 72 Chapter 14, 188.8.131.52.(15))
- Designed to meet the requirements of Life Safety Engineers
- Range from 32dB to 130dB at frequencies between 31.5Hz and 8Khz
- Display with 01.db steps on a 4-digit LCD
- Two equivalent weighted sound pressure levels, A and C AC Signal output available
Merely "listening" or utilizing any sound level meter available is not a reliable method for testing audible alarm notification appliances. Many of the meters currently on the market do not meet the requirements for NFPA 72. dBchecker conforms to ANSI S1.4a, which is required to meet the standard set forth in the latest edition of the National Fire Alarm Code (NFPA 72).
"...only sound level meters that comply with ANSI S1.42 should be used for the assessment of fore alarm systems..."
"...Testing of Audible Alarm Notification Appliances shall be done upon initial acceptance and semi-annually"
"..Sound pressure shall be measure with sound level meter meeting ANSI S1.4a. Specifications for Sound Level Meters, Type 2 Requirements. Levels throughout the protected area shall be measured and recorded..." NFPA72 10.4.2.2 (15)
CAN/ULC S536-04, G1.1
"The sound level meter shall have a measurement range that permits readings as low as 35 dBA..." "The use of a quality meter to minimize any measurement errors. ANSI S1.40, Specifications for Acoustic Calibrators, is one standard that can provide guidance on the subject."
|Standard Applied ||IEC651 Type2, ANSI S1.4 Type2. |
|Frequency Range ||31.5Hz to 8KHz |
|Measuring Level Range ||32dB to 130dB |
|Frequency Weighting ||A / C |
|Microphone ||½ inch electrical condenser microphone |
|Display ||LCD |
|Digital Display ||4 digit |
|Resolution ||0.1dB |
|Display Update ||0.5 seconds |
|Time Weighting ||FAST (125mS), SLOW (1 second) |
|Level Ranges ||Lo: 32 dB to 80 dB |
Med: 50 dB to 100 dB
Hi: 80 dB to 130 dB
|Accuracy ||±1.5dB (under reference conditions, 94dB@1kHz) |
|Dynamic Range ||50 dB |
|Alarm Function ||"OVER" is when the input is more than upper limit of range. |
"UNDER" is when input is less than the lower limit of range.
|MAX/MIN Hold ||Hold readings the Maximum and Minimum Value |
|AC Output ||1 Vms at FS (full scale) |
|Power Supply ||One 9V battery 006P or IEC 6F22 or NEDA 1604 |
|Power Life ||Approx. 70 Hours (alkaline battery) |
|Operation Temperature ||0° to 40°C (32° to 104°F) |
|Operation Humidity ||10 to 75%RH |
|Dimensions ||9.1" L x 2.1" W x 1.3" H |
23.1 cm x 5.3 cm x 3.3 cm
|Weight ||.75 lbs (.34kg) (including battery) |
|Accessories Included ||9V battery, screwdriver, instruction manual and windscreen. |