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METRAVI CO-10 CARBON MONO OXIDE METER MODEL NO. CO-10 Detects Presence of Carbon Mono-Oxide. Range 0 to 1000PPM, Backlit LCD, With Audio and Buzzer Alarm Description The Carbon monoxide Meter detects the presence of carbon monoxide (CO) and measures concentrations between 1 – 1000 Parts Per Million (PPM) The Meter Indicates the presence of carbon monoxide in two ways :- By a reading on the LCD in PPM. By a beeper tone. The beeper functions much like clicking of a Geiger Counter : Above 200PPM, The beeper sounds continuously with the concentration of CO From 35 PPM to 200 PPM the beeper sounds Discontinuously with the Concentration of CO. Along with Alarm, LED display for warning is also Provided Measuring Range : 0 – 1000 PPM Measuring Resolution : 1 PPM Accuracy : ±5% or ±10 PPM Auto Power Off Warm up period: Sensor Type : Stabilized Electrochemical Gas-specific (CO) Max recording, Data Storing, Recall of stored data, Measuring Time display facility is also provided
LUTRON SL-4001, IEC 61672 CLASS 2 SOUND LEVEL METER DIGITAL SOUND LEVEL METER Model : SL-4001 FEATURES * Large LCD display, easy to read. * Max. Hold function for stored the maximum value on display. * Frequency weighting networks are designed to meet the * Warning indicator for over and under load. IEC 61672 CLASS 2. * LCD display for low power consumption & clear read-out even * A & C weighting networks are conformity to standards. in bright ambient light condition. * Time weighting(FAST & SLOW) dynamic characteristic modes. * Used the durable, long-lasting components, including a strong, * AC/DC output for system expansion. light weight ABS-plastic housing case. * Build in adj. VR is available for easy calibration. * Small and light weight design allow one hand operation. * Condenser microphone for high accuracy & long-term stability. * Low battery indicator. SPECIFICATIONS Display 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits. Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output. Measurement Range 3 ranges, 30 to 130 dB, input signal only. Resolution 0.1 dB. Accuracy Frequency weighting meet IEC 61672 class 2, calibrating input signal on 94 dB(31.5 Hz to 8 (23 ± 5 ℃) kHz), then the accuracy of frequency weighting is specified as following: 31.5 Hz - ± 3.5 dB, 63 Hz - ± 2.5 dB, 125 Hz - ± 2.0 dB 250 Hz - ± 1.9 dB, 500 Hz - ± 1.9 dB, 1 kHz - ± 1.4 dB 2 kHz - ± 2.6 dB, 4 kHz - ± 3.6 dB, 8 kHz - ± 5.6 dB Characteristics of A & C. Frequency A weighting - The characteristic is simulated as "Human Ear Listing" response. Typical, if making Weighting Network the environmental sound level measurement, always select to A weighting. C weighting - The characteristic is near the "FLAT" response. Typical, it is suitable for checking the noise of machinery (Q.C. check) & knowing the sound pressure level of the tested equipment. Frequency 31.5 Hz to 8, 000 Hz. Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226. Microphone type Electric condenser microphone. Size of microphone 1/2 inch standard size. Range selector 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step, with over & under range indicating. Time weighting Fast - t= 200 ms, Slow - t = 500 ms, (Fast & Slow) * "Fast" range is simulated the human ear response time weighting. "Slow" range is easy to get the average values of vibration sound level. Calibration * Build in external calibration VR, easy to calibrate by external screw driver. * Internal oscillation system, 1 KHz sine wave generator. Output Signal AC output - AC 0.5 Vrms corresponding to each range step. DC output - DC 0.3 to 1.3 VDC, 10 mV per dB. Out put impedance - 600 ohm. Output terminal 3.5 mm phone output terminal is provided for connection with analyzer, level recorder, tape recorder. Operating Temp. 0 ℃ to 50 ℃ ( 32 ℉ to 122 ℉ ). Operating Humidity Less than 80% RH Power Supply 006P DC 9V battery(heavy duty type). Power Consumption Approx. DC 6mA. Dimension 205 x 80 x 35 mm ( 8.1 x 3.2 x 1.4 inch). Weight 280 g/0.62 LB (including battery). Standard Accessories Instruction Manual ....................................... 1 PC. Calibration screw driver................................. 1 PC. Optional Accessories 94 dB Sound Calibrator, Model : SC-941. 94 dB/114 dB Sound Calibrator, Model : SC-942. Hard carrying case, Model : CA-06.
WACO ANALOGUE METAL BODY INSULATION TESTER WACO HAND DRIVEN GENERATOR TYPE INSULATION TESTER Housed in Anti- magnetic aluminium body Metallic Flap over Glass window WACO ANALOGUE HAND DRIVEN GENERATOR TYPE METAL BODY INSULATION TESTERS are available from 100V to 5000V with respectively suitable resistance range. Special resistance range can also be manufactured against specific requirement .Multi range instruments are also manufactured provided with range selector switch. Electrical Specifications Better than 50 Megohms at 5000 V D.C. between the electrical circuit & the containing case