Compact 7-in-1 Sound Meter (EM-1910) Plus Environmental Conditions
Measures sound level, humidity, temperature, light, dew point, wet bulb, heat index, and Type K thermocouple temperature with an optional probe
The Lutron EM-1910 combines seven professional environmental instruments in one hand-held meter: sound level, humidity/temperature, light, dew point, wet bulb, heat index, and Type K thermocouple temperature with an optional probe. The slim bone-shaped case is built for one-hand operation, and a high precision humidity sensor with fast response time feeds the calculated dew point, wet bulb and heat index readings. Certified to ISO-9001, CE and IEC 1010.
- Seven instruments in one: sound level meter, humidity/temperature, light meter, dew point, wet bulb, heat index, and Type K temperature (optional probe).
- Tiny bone shape with light weight and small case size, suitable for one-hand operation.
- Wristlet design provides extra protection to the instrument, especially during one-hand operation.
- High precision humidity sensor with fast response time.
- Built-in microprocessor circuit assures excellent performance and accuracy.
- Concise and compact button arrangement for easy operation.
- Memorizes the maximum and minimum values with recall.
- °C / °F selection by pressing a button on the front panel.
- Hold function freezes the current reading value.
Specifications
| Display |
14 mm LCD display. |
| Measurement |
1. Sound level meter. 2. Humidity/temperature. 3. Dew point. 4. Wet bulb. 5. Heat index. 6. Light meter. 7. Type K temperature (optional). |
| Operating humidity |
Max. 80% RH. |
| Operating temperature |
0 to 50 °C (32 to 122 °F). |
| Over input display |
Indication of "- - - -". |
| Power supply |
UM4-AAA x 3 (DC 4.5V battery). |
| Power consumption |
Approximately DC 18 mA. |
Electrical Specifications
Specifications apply at 23 ± 5 °C.
Sound Level Meter
| Measurement range |
35 to 130 dB |
| Resolution |
0.1 dB |
| Frequency |
31.5 to 8,000 Hz |
| Function |
Data hold; record maximum and minimum. |
| Microphone type |
Electret condenser microphone. |
| Microphone size |
12.7 mm outside diameter (1/2"). |
| Accuracy |
Characteristics of the "A" frequency weighting network meet IEC 61672-2013 class 2. Under a 94 dB input signal, accuracy is as listed below. |
| Frequency |
Accuracy |
| 31.5 Hz | ± 3.0 dB |
| 63 Hz | ± 2.0 dB |
| 125 Hz | ± 1.5 dB |
| 250 Hz | ± 1.5 dB |
| 500 Hz | ± 1.5 dB |
| 1 kHz | ± 1.0 dB |
| 2 kHz | ± 2.0 dB |
| 4 kHz | ± 3.0 dB |
| 8 kHz | ± 5.0 dB |
Humidity and Temperature
| Unit |
Range |
Resolution |
Accuracy |
| % RH |
10% to 95% RH |
0.1% RH |
Below 70% RH: ± 4% RH. At 70% RH and above: ± (4% of reading + 1.2% RH). |
| °C |
0 to 50 °C |
0.1 °C |
± 1.2 °C |
| °F |
32 to 122 °F |
0.1 °F |
± 2.5 °F |
Light
| Unit |
Range |
Resolution |
Accuracy |
| Lux |
0 to 2,200 Lux |
1 Lux |
± 5% of reading ± 8 digits |
| 1,800 to 20,000 Lux |
10 Lux |
| Ft-cd |
0 to 204.0 Ft-cd |
0.1 Ft-cd |
| 170 to 1,860 Ft-cd |
1 Ft-cd |
Light measurement is auto ranging. Ft-cd is foot-candles.
Dew Point Temperature
| Unit |
Range |
Resolution |
| °C |
-25.3 to 49.0 °C |
0.1 °C |
| °F |
-13.5 to 120.0 °F |
0.1 °F |
Dew point is calculated from the humidity and temperature values.
Wet Bulb Temperature
| Unit |
Range |
Resolution |
| °C |
-5.4 to 49.0 °C |
0.1 °C |
| °F |
22.2 to 120.0 °F |
0.1 °F |
Wet bulb temperature is calculated from the humidity and temperature values.
Heat Index
| Unit |
Range |
Resolution |
Accuracy |
| °C |
0 to 100.0 °C |
0.1 °C |
± 2.0 °C |
| °F |
32 to 212 °F |
0.1 °F |
± 3.6 °F |
Type K Thermometer (Optional Probe)
| Resolution |
Range |
Accuracy |
| 0.1 °C |
-50.0 to 1300.0 °C |
± (0.4% + 0.5 °C) |
| -100.0 to -50.1 °C |
± (0.4% + 1 °C) |
| 0.1 °F |
-58.0 to 2372.0 °F |
± (0.4% + 1 °F) |
| -148.0 to -58.1 °F |
± (0.4% + 1.8 °F) |
Specifications are tested in an environment with RF field strength less than 3 V/m and frequency less than 30 MHz.
Heat Index Reference
| Celsius |
Fahrenheit |
Effect (shade values) |
| 27 to 32 °C |
80 to 90 °F |
Caution: fatigue is possible with prolonged exposure and activity. Continuing activity could result in heat cramps. |
| 32 to 41 °C |
90 to 105 °F |
Extreme caution: heat cramps and heat exhaustion are possible. Continuing activity could result in heat stroke. |
| 41 to 54 °C |
105 to 130 °F |
Danger: heat cramps and heat exhaustion are likely; heat stroke is probable with continued activity. |
| Over 54 °C |
Over 130 °F |
Extreme danger: heat stroke is imminent. |
Exposure to full sunshine can increase heat index values by up to 8 °C (14 °F).
Dimensions
| Meter (H x W x D) |
179 x 57 x 24 mm (7.0 x 2.2 x 0.94") |
Weight
| Meter only |
146 g (0.32 lb) |
Accessories Included
- Instruction manual, 1 pc.
Optional Components
- Type K temperature probes: TP-01, TP-02A, TP-03, TP-04.
Downloads
Appearance and specifications are subject to change without notice. 190806-EM-1910
