897 Sound Dosimeter
Measuring System
The
897 Dosimeter Sound Measuring System
conducts
personal noise surveys to meet IEC and OSHA requirements.
Used as a sound level meter, the 897 provides a quick survey
of targeted areas and identifies suspect locations. The 897
is also ideal for industrial and environmental sound level
measurements and checking noise areas for excessive dB
exposure.
Use the 897 to take measurements and record, then view
and print reports from the computer by using HyperTerminal
program for later use during OSHA or other official inspections.
NOTE:
Microsoft no longer includes a HyperTerminal program
on Windows 7.
The 897 computes dosage and records up to 31 hours, at one
minute intervals, of Lavg and Lmax readings and the number
of detected 140 dB peak occurrences per minute. You can then
print data up to 8 hours of recorded readings.
• Conforms to ANSI S1.4-1983, ANSI S1.25-1978, and IEC 651-1979 Specifications
• Choice of exchange rates (3, 4, or 5 dB) and criterion levels (70, 80, 84, 85, or 90 dB)
• Selectable threshold Level from 50-99 dB in 1 dB Increments
• Dual range (50-100 dB and 80-130 dB)
• Real Time Clock with rechargeable battery
• Security Lockout feature with Internal Data Storage
• Self-Test Modes test operational readiness
1
Rev. 04-15
897 Sound Dosimeter
Measuring System
Ordering Information
Sound Dosimetry System
897 Universal Noise Dosimeter
SMS-2 Universal Noise Dosimeter Kit
887-2 Calibrator
Accessories
RS-232 Serial Cable for 897
Parallel Printer Cable for 897 (Optional)
Case, Molded Plastic
Catalog Number
12645
12646
12648
Catalog Number
02233
02234
45021
SMS-2 Universal Sound Dosimeter Kit
The SMS-2 contains everything necessary to perform
accurate surveys for OSHA and IEC requirements, along with
the performance and reliability Simpson’s test instruments
have to offer.
Kit Includes:
A
B
C
D
E
F
G
H
I
J
K
Rugged Carrying Case
AC Adaptor (110, 120, 220, 240)
RS-232 Serial Cable
and (Optional) Parallel Printer Cable
Multi-Spline Wrench
Calibration Screwdriver
Microphone Clip
Wind Screen
897 Dosimeter
9V Battery
887-2 Calibrator
Nose Cone
2
Rev. 04-15
897 Sound Dosimeter
Measuring System
Specifications of Model 897
GENERAL
Power Requirements
Warm-Up Time
Dimensions
Weight
Case Construction
Security Feature
Real Time Clock
Performance Capability
Ni-Cad Rechargeable battery pack
1 minute
6.8" (H) x 3.1" (W) x 1.1" (D), (172x80x28mm)
18 oz. (500g) including battery pack
Anodized aluminum extrusion
Locks-in operating function
Clock continues running in all functions
Conforms to ANSI S1.4-1983 and IEC 651-1971 for sound level function
and ANSI S1.25-1978 for dosimeter function
SOUND LEVEL MODE
Ranges
Accuracy
Dynamic Range
Frequency Response Weighting
Response Time
Crest Factor
Frequency Range
DOSIMETER MODE
Threshold Level
Criterion Level
Criterion Duration (TC)
Exchange Rate
Maximum Indication
Resolution
Elapsed Time
140dB Peak
MICROPHONE
Type
50 to 100dB, 80 to 130 dB
True RMS, Type S2
Selectable from 50 to 100dB and 80 to 130dB
"A" Weighting
Slow (1 second)
10:1 at maximum indication
31.5Hz to 8KHz
Selectable from 50-99dB in 1dB increments
Selectable, 70, 80, 84, 85 or 90dB
Eight (8) Hours
Selectable 3, 4 or 5dB
999.9% DOSE
0.1% DOSE to 999.9%
Displays either Hours: Minutes: Seconds, up to 99 Hours 59 Minutes, 59 Seconds.
Timing Accuracy: 0.05%
Displays number of 140dB peaks that have been detected
0.52" (13.2mm) Diameter Electret Condenser, Omnidirectional 70° angle of incidence.
Maximum sound pressure level 148dB.
DISPLAY
Numerical
Annunciators
ENVIRONMENTAL
Operating Temperature
Temperature Coefficient
Relative Humidity
Storage Range
Magnetic Field Influence
4 Digit LCD
Lo Batt, Spl Max, Int 60, % Dose, dBA, plus a colon and decimal point
-10° to 50°C
±0.05dB per °C (25° to 50°C) for reference measurement of 105dB at 1000Hz
Range: 0-95% RH
Influence: Less than 0.5db over measurement range
-30° to 45°C (Limitation of battery)
No effect in of 1 oersted (80A/m)
3
Rev. 04-15
897 Sound Dosimeter
Measuring System
STANDARD REPORT OUTPUT
4
Rev. 04-15
897 Sound Dosimeter
Measuring System
887-2 Calibrator
The model 887-2 calibrator has a selectable sound
pressure range of 94dB and 114dB at 1 KHz.
The calibrator is immune to a wide range of
temperature and humidity conditions is compatible
with 1/2" microphone.
Operational readiness is indicated by the low
battery red LED.
Specifications for 887-2 Calibrator
GENERAL
Battery
Battery Life
Mechanical Construction
Weight
Dimensions
ACOUSTIC OUTPUT
Microphone
Frequency
Sound Pressure
Reference Level
Accuracy
Distortion
ENVIRONMENTAL
Operating Temperature
Storage Temperature
Temperature Coefficient
Operating Relative Humidity
Reference Conditions
Relative Humidity
One 9-volt battery, NEDA 1604A
Approximately 35 hours for 2 hours per day operation, with 9V alkaline battery
Aluminum case includes acoustic cavity and provides shielding
13.5oz (.35kg) - 897, 5.9 lbs. (2.68 Kg) SMS-2 Kit
5 1/4" long, 2" diameter (131 mm long, 50mm diameter)
0.52" inch diameter
1000Hz ± 1%
Selectable at 94 or 114 dB
0dB = 20µ Pascals
± 0.5dB at reference conditions
Less than 2%
0° to 50°C
-40 to +60°C, battery removed
Less than ± 0.05 dB/°C
0 to 90%, non-condensing
23°C, 760mm Hg
30 to 60%
Specifications subject to change without notice
5
Rev. 04-15
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